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authorVivek Dasmohapatra <vivek@collabora.co.uk>2012-10-17 17:00:16 (GMT)
committerVivek Dasmohapatra <vivek@collabora.co.uk>2012-11-06 20:03:49 (GMT)
commit6eee9d696fa3bdbcee1726d377ae00124f62c293 (patch)
tree5ba26f02dcf277bfd3ae5205575a4d7d2d4cd705
downloadi915-3.6-3.5-ubuntu-6eee9d696fa3bdbcee1726d377ae00124f62c293.tar.gz
i915-3.6-3.5-ubuntu-6eee9d696fa3bdbcee1726d377ae00124f62c293.tar.xz
Initial checkin of DKMS packaging of 3.6.x → 3.5.x i915.ko backport
-rw-r--r--CHANGES1
-rw-r--r--Makefile73
-rw-r--r--README1
-rw-r--r--debian/changelog5
-rw-r--r--debian/compat1
-rw-r--r--debian/control22
-rw-r--r--debian/control.modules.in13
-rw-r--r--debian/dkms.conf.in15
-rw-r--r--debian/i915-3.6-3.5-dkms.postinst44
-rw-r--r--debian/i915-3.6-3.5-dkms.preinst19
-rw-r--r--debian/i915-3.6-3.5-dkms.prerm15
-rwxr-xr-xdebian/rules95
-rw-r--r--debian/rules.modules91
-rw-r--r--drivers/gpu/drm/ati_pcigart.c202
-rw-r--r--drivers/gpu/drm/drm_agpsupport.c469
-rw-r--r--drivers/gpu/drm/drm_auth.c194
-rw-r--r--drivers/gpu/drm/drm_buffer.c185
-rw-r--r--drivers/gpu/drm/drm_bufs.c1614
-rw-r--r--drivers/gpu/drm/drm_cache.c123
-rw-r--r--drivers/gpu/drm/drm_context.c463
-rw-r--r--drivers/gpu/drm/drm_crtc.c3831
-rw-r--r--drivers/gpu/drm/drm_crtc_helper.c1025
-rw-r--r--drivers/gpu/drm/drm_debugfs.c241
-rw-r--r--drivers/gpu/drm/drm_dma.c157
-rw-r--r--drivers/gpu/drm/drm_dp_i2c_helper.c208
-rw-r--r--drivers/gpu/drm/drm_drv.c496
-rw-r--r--drivers/gpu/drm/drm_edid.c1985
-rw-r--r--drivers/gpu/drm/drm_edid_load.c252
-rw-r--r--drivers/gpu/drm/drm_edid_modes.h774
-rw-r--r--drivers/gpu/drm/drm_encoder_slave.c125
-rw-r--r--drivers/gpu/drm/drm_fb_helper.c1410
-rw-r--r--drivers/gpu/drm/drm_fops.c620
-rw-r--r--drivers/gpu/drm/drm_gem.c729
-rw-r--r--drivers/gpu/drm/drm_global.c112
-rw-r--r--drivers/gpu/drm/drm_hashtab.c197
-rw-r--r--drivers/gpu/drm/drm_info.c279
-rw-r--r--drivers/gpu/drm/drm_ioc32.c1085
-rw-r--r--drivers/gpu/drm/drm_ioctl.c360
-rw-r--r--drivers/gpu/drm/drm_irq.c1346
-rw-r--r--drivers/gpu/drm/drm_lock.c373
-rw-r--r--drivers/gpu/drm/drm_memory.c144
-rw-r--r--drivers/gpu/drm/drm_mm.c756
-rw-r--r--drivers/gpu/drm/drm_modes.c1179
-rw-r--r--drivers/gpu/drm/drm_pci.c516
-rw-r--r--drivers/gpu/drm/drm_platform.c206
-rw-r--r--drivers/gpu/drm/drm_prime.c352
-rw-r--r--drivers/gpu/drm/drm_proc.c220
-rw-r--r--drivers/gpu/drm/drm_scatter.c213
-rw-r--r--drivers/gpu/drm/drm_stub.c519
-rw-r--r--drivers/gpu/drm/drm_sysfs.c570
-rw-r--r--drivers/gpu/drm/drm_trace.h66
-rw-r--r--drivers/gpu/drm/drm_trace_points.c4
-rw-r--r--drivers/gpu/drm/drm_usb.c120
-rw-r--r--drivers/gpu/drm/drm_vm.c690
-rw-r--r--drivers/gpu/drm/i915/dvo.h144
-rw-r--r--drivers/gpu/drm/i915/dvo_ch7017.c401
-rw-r--r--drivers/gpu/drm/i915/dvo_ch7xxx.c331
-rw-r--r--drivers/gpu/drm/i915/dvo_ivch.c421
-rw-r--r--drivers/gpu/drm/i915/dvo_sil164.c263
-rw-r--r--drivers/gpu/drm/i915/dvo_tfp410.c304
-rw-r--r--drivers/gpu/drm/i915/i915_debugfs.c2107
-rw-r--r--drivers/gpu/drm/i915/i915_dma.c1873
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c1182
-rw-r--r--drivers/gpu/drm/i915/i915_drv.h1590
-rw-r--r--drivers/gpu/drm/i915/i915_gem.c4278
-rw-r--r--drivers/gpu/drm/i915/i915_gem_context.c535
-rw-r--r--drivers/gpu/drm/i915/i915_gem_debug.c188
-rw-r--r--drivers/gpu/drm/i915/i915_gem_dmabuf.c232
-rw-r--r--drivers/gpu/drm/i915/i915_gem_evict.c204
-rw-r--r--drivers/gpu/drm/i915/i915_gem_execbuffer.c1439
-rw-r--r--drivers/gpu/drm/i915/i915_gem_gtt.c447
-rw-r--r--drivers/gpu/drm/i915/i915_gem_stolen.c202
-rw-r--r--drivers/gpu/drm/i915/i915_gem_tiling.c511
-rw-r--r--drivers/gpu/drm/i915/i915_ioc32.c222
-rw-r--r--drivers/gpu/drm/i915/i915_irq.c2716
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h4477
-rw-r--r--drivers/gpu/drm/i915/i915_suspend.c898
-rw-r--r--drivers/gpu/drm/i915/i915_sysfs.c238
-rw-r--r--drivers/gpu/drm/i915/i915_trace.h442
-rw-r--r--drivers/gpu/drm/i915/i915_trace_points.c13
-rw-r--r--drivers/gpu/drm/i915/intel_acpi.c251
-rw-r--r--drivers/gpu/drm/i915/intel_bios.c773
-rw-r--r--drivers/gpu/drm/i915/intel_bios.h619
-rw-r--r--drivers/gpu/drm/i915/intel_crt.c738
-rw-r--r--drivers/gpu/drm/i915/intel_ddi.c763
-rw-r--r--drivers/gpu/drm/i915/intel_display.c7460
-rw-r--r--drivers/gpu/drm/i915/intel_dp.c2645
-rw-r--r--drivers/gpu/drm/i915/intel_drv.h511
-rw-r--r--drivers/gpu/drm/i915/intel_dvo.c447
-rw-r--r--drivers/gpu/drm/i915/intel_fb.c295
-rw-r--r--drivers/gpu/drm/i915/intel_hdmi.c1023
-rw-r--r--drivers/gpu/drm/i915/intel_i2c.c548
-rw-r--r--drivers/gpu/drm/i915/intel_lvds.c1121
-rw-r--r--drivers/gpu/drm/i915/intel_modes.c126
-rw-r--r--drivers/gpu/drm/i915/intel_opregion.c533
-rw-r--r--drivers/gpu/drm/i915/intel_overlay.c1628
-rw-r--r--drivers/gpu/drm/i915/intel_panel.c473
-rw-r--r--drivers/gpu/drm/i915/intel_pm.c4130
-rw-r--r--drivers/gpu/drm/i915/intel_ringbuffer.c1576
-rw-r--r--drivers/gpu/drm/i915/intel_ringbuffer.h229
-rw-r--r--drivers/gpu/drm/i915/intel_sdvo.c2631
-rw-r--r--drivers/gpu/drm/i915/intel_sdvo_regs.h728
-rw-r--r--drivers/gpu/drm/i915/intel_sprite.c709
-rw-r--r--drivers/gpu/drm/i915/intel_tv.c1665
-rw-r--r--drivers/platform/x86/intel_ips.c1749
-rw-r--r--drivers/platform/x86/intel_ips.h21
-rw-r--r--include/drm/drm.h830
-rw-r--r--include/drm/drmP.h1774
-rw-r--r--include/drm/drm_crtc_helper.h169
-rw-r--r--include/drm/drm_mm.h251
-rw-r--r--include/drm/i915_drm.h921
-rw-r--r--include/linux/pci_regs.h839
112 files changed, 88639 insertions, 0 deletions
diff --git a/CHANGES b/CHANGES
new file mode 100644
index 0000000..4f2e970
--- /dev/null
+++ b/CHANGES
@@ -0,0 +1 @@
+PLACEHOLDER
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c9372c2
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,73 @@
+KVER := $(shell uname -r)
+KBASE := /lib/modules/$(KVER)
+KSRC := $(KBASE)/source
+KBUILD := $(KBASE)/build
+MOD_DIR := $(KBASE)/kernel
+PWD := $(shell pwd)
+I9_MODULES := i915.o intel_ips.o drm.o drm_kms_helper.o
+CPATH := $(KBUILD_EXTMOD)/drivers/gpu/drm/i915
+INC_INCPATH := $(KBUILD_EXTMOD)/include
+DRMD := drivers/gpu/drm/
+I915_ITEMS := i915_drv i915_dma i915_irq i915_debugfs \
+ i915_suspend i915_gem i915_gem_context i915_gem_debug \
+ i915_gem_evict i915_gem_execbuffer i915_gem_gtt \
+ i915_gem_stolen i915_gem_tiling i915_sysfs \
+ i915_trace_points intel_display intel_crt intel_lvds \
+ intel_bios intel_ddi intel_dp intel_hdmi intel_sdvo \
+ intel_sprite intel_pm intel_modes intel_panel intel_i2c \
+ intel_fb intel_tv intel_dvo intel_ringbuffer intel_overlay \
+ intel_opregion dvo_ch7xxx dvo_ch7017 dvo_ivch dvo_tfp410 \
+ dvo_sil164 i915_gem_dmabuf
+DRM_ITEMS := drm_auth drm_buffer drm_bufs drm_cache \
+ drm_context drm_dma \
+ drm_drv drm_fops drm_gem drm_ioctl drm_irq \
+ drm_lock drm_memory drm_proc drm_stub drm_vm \
+ drm_agpsupport drm_scatter ati_pcigart drm_pci \
+ drm_platform drm_sysfs drm_hashtab drm_mm \
+ drm_crtc drm_modes drm_edid \
+ drm_info drm_debugfs drm_encoder_slave \
+ drm_trace_points drm_global drm_prime
+# this prioritises the DKMS package include directories over the kernel headers
+# allowing us to override header files where the 3.6.x versions have extra
+# stricts and declarations and so forth that we need for the backport to build
+CC := $(CC) -I$(INC_INCPATH) -I$(INC_INCPATH)/drm -I$(INC_INCPATH)/linux
+export CC
+
+export CPATH
+
+.PHONY: default clean modules load unload install patch
+
+# this pulls in the <linux-headers>/include/drm include dir explicitly
+ccflags-y := -Iinclude/drm
+
+drm_kms_helper-y := \
+ $(patsubst %,$(DRMD)%.o,drm_fb_helper drm_crtc_helper drm_dp_i2c_helper)
+
+drm_kms_helper-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += \
+ $(patsubst %,$(DRMD)%.o,drm_edid_load)
+
+drm-y := $(patsubst %,$(DRMD)%.o, $(DRM_ITEMS))
+i915-y := $(patsubst %,$(DRMD)i915/%.o, $(I915_ITEMS))
+intel_ips-y := $(patsubst %,drivers/platform/x86/%.o,intel_ips)
+
+i915-$(CONFIG_ACPI) += $(patsubst %,$(DRMD)i915/%.o,intel_acpi)
+i915-$(CONFIG_COMPAT) += $(patsubst %,$(DRMD)i915/%.o,i915_ioc32)
+drm-$(CONFIG_COMPAT) += $(patsubst %,$(DRMD)%.o,drm_ioc32)
+
+obj-$(CONFIG_DRM_I915) += i915.o
+obj-$(CONFIG_INTEL_IPS) += intel_ips.o
+obj-$(CONFIG_DRM) += drm.o
+obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o
+
+obj-m := $(I9_MODULES)
+
+CFLAGS_i915_trace_points.o := -I$(CPATH)
+CFLAGS_drm_trace_points.o := -I$(KBUILD_EXTMOD)/drivers/gpu/drm
+
+modules: $(KBUILD) $(patsubst %.o,%.c,$(I9_MODULES))
+ $(MAKE) -C $(KBUILD) M=$(PWD) O=$(KBUILD) modules
+
+clean:
+ rm -rf *.o *.ko *.cmd .*.cmd .tmp_versions
+
+
diff --git a/README b/README
new file mode 100644
index 0000000..4f2e970
--- /dev/null
+++ b/README
@@ -0,0 +1 @@
+PLACEHOLDER
diff --git a/debian/changelog b/debian/changelog
new file mode 100644
index 0000000..a3258af
--- /dev/null
+++ b/debian/changelog
@@ -0,0 +1,5 @@
+i915-3.6-3.5 (0.01) quantal; urgency=low
+
+ * i915.ko (and related modules) from 3.6.x backport for Quantal kernels
+
+ -- Vivek Dasmohapatra <vivek@collabora.co.uk> Mon, 05 Nov 2012 15:21:48 +0000
diff --git a/debian/compat b/debian/compat
new file mode 100644
index 0000000..7ed6ff8
--- /dev/null
+++ b/debian/compat
@@ -0,0 +1 @@
+5
diff --git a/debian/control b/debian/control
new file mode 100644
index 0000000..29ac256
--- /dev/null
+++ b/debian/control
@@ -0,0 +1,22 @@
+Source: i915-3.6-3.5
+Section: kernel
+Priority: optional
+Maintainer: Vivek Dasmohapatra <vivek@collabora.co.uk>
+Build-Depends: debhelper (>=5), quilt
+
+Package: i915-3.6-3.5-source
+Architecture: all
+Depends: debhelper (>= 5), module-assistant, ${misc:Depends}
+Description: Intel i915 video drivers from the mainline kernel,
+ backported from the 3.6 series to the 3.5 series.
+ .
+ This package contains source to be built with module-assistant
+ or kernel-package.
+
+Package: i915-3.6-3.5-dkms
+Architecture: all
+Depends: debhelper, module-assistant, dkms, linux-headers, ${misc:Depends}
+Description: Intel i915 video drivers from the mainline kernel,
+ backported from the 3.6 series to the 3.5 series.
+ .
+ This package contains the source to be built with dkms.
diff --git a/debian/control.modules.in b/debian/control.modules.in
new file mode 100644
index 0000000..e651687
--- /dev/null
+++ b/debian/control.modules.in
@@ -0,0 +1,13 @@
+Source: i915-3.6-3.5
+Section: kernel
+Priority: optional
+Maintainer: Vivek Dasmohapatra <vivek@collabora.co.uk>
+Build-Depends: debhelper (>=5)
+
+Package: i915-3.6-3.5-_KVERS_
+Architecture: any
+Depends: linux-modules-_KVERS_ | linux-image-_KVERS_
+Provides: i915-modules
+Description: Intel i915 video drivers from the mainline kernel,
+ backported to the distribution's kernel version _KVERS_
+
diff --git a/debian/dkms.conf.in b/debian/dkms.conf.in
new file mode 100644
index 0000000..b778e8e
--- /dev/null
+++ b/debian/dkms.conf.in
@@ -0,0 +1,15 @@
+PACKAGE_NAME="i915-3.6-3.5"
+PACKAGE_VERSION="__VERSION__"
+MAKE[0]="make -d V=1 -C ${kernel_source_dir} M=${dkms_tree}/${PACKAGE_NAME}/${PACKAGE_VERSION}/build"
+CLEAN="make -d V=1 -C ${kernel_source_dir} M=${dkms_tree}/${PACKAGE_NAME}/${PACKAGE_VERSION}/build clean"
+AUTOINSTALL=yes
+BUILT_MODULE_NAME[0]="i915"
+BUILT_MODULE_NAME[1]="intel_ips"
+BUILT_MODULE_NAME[2]="drm"
+BUILT_MODULE_NAME[3]="drm_kms_helper"
+DEST_MODULE_LOCATION[0]=/updates
+DEST_MODULE_LOCATION[1]=/updates
+DEST_MODULE_LOCATION[2]=/updates
+DEST_MODULE_LOCATION[3]=/updates
+
+
diff --git a/debian/i915-3.6-3.5-dkms.postinst b/debian/i915-3.6-3.5-dkms.postinst
new file mode 100644
index 0000000..b8c2cad
--- /dev/null
+++ b/debian/i915-3.6-3.5-dkms.postinst
@@ -0,0 +1,44 @@
+#!/bin/sh
+
+set -e
+
+package=i915-3.6-3.5-dkms;
+name=i915-3.6-3.5;
+
+version=$(dpkg-query -W -f='${Version}' $package | rev | \
+ cut -d- -f2- | rev | cut -d':' -f2 | tr -d "\n");
+
+isadded=$(dkms status -m $name -v $version);
+
+# note the || true - we don't want the installation of the package to fail
+# if the dkms commands fail - that leaves us with a partially installed
+# package which is a bit harder to remove. If the dkms commands fail,
+# we'll just have a system with some source that doesn't have the new modules
+# built+installed, which is much easier to clean up than a partially installed
+# packages (at least from the eventual automated installer's POV)
+
+# is there an old version? remove it! it would prevent our fresh source from
+# being built, so the user wouldn't actually get our version of the module
+if [ "${isadded}" != "" ];
+then
+ dkms --verbose remove -m $name -v $version --all || true;
+ isadded=$(dkms status -m $name -v $version);
+fi
+
+# add our own version [back in]:
+if [ "${isadded}" = "" ];
+then
+ dkms --verbose add -m $name -v $version || true;
+ isadded=$(dkms status -m $name -v $version);
+fi
+
+# now build and install:
+if [ "$1" = 'configure' ];
+then
+ dkms --verbose build -m $name -v $version && \
+ dkms --verbose install -m $name -v $version || true;
+fi;
+
+#DEBHELPER#
+
+exit 0;
diff --git a/debian/i915-3.6-3.5-dkms.preinst b/debian/i915-3.6-3.5-dkms.preinst
new file mode 100644
index 0000000..efa4f4a
--- /dev/null
+++ b/debian/i915-3.6-3.5-dkms.preinst
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+set -e
+
+RCODE=1;
+
+OIFS=$IFS;
+IFS=".- ";
+while read X X MAJOR MINOR SUB LABEL;
+do
+ echo "Checking Kernel Version: Want 3.5.x+; Have $MAJOR.$MINOR.$SUB"
+ if [ $MAJOR -ne 3 ]; then break; fi;
+ if [ $MINOR -ne 5 ]; then break; fi;
+ RCODE=0;
+ break;
+done < /proc/version
+IFS=$OIFS;
+
+exit $RCODE;
diff --git a/debian/i915-3.6-3.5-dkms.prerm b/debian/i915-3.6-3.5-dkms.prerm
new file mode 100644
index 0000000..7e2afce
--- /dev/null
+++ b/debian/i915-3.6-3.5-dkms.prerm
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+set -e
+
+package=i915-3.6-3.5-dkms
+name=i915-3.6-3.5
+
+version=$(dpkg-query -W -f='${Version}' "$package" | rev | \
+ cut -d- -f2- | rev | cut -d':' -f2 | tr -d "\n");
+
+dkms remove -m $name -v $version --all || true;
+
+#DEBHELPER#
+
+exit 0
diff --git a/debian/rules b/debian/rules
new file mode 100755
index 0000000..8af5fb9
--- /dev/null
+++ b/debian/rules
@@ -0,0 +1,95 @@
+#!/usr/bin/make -f
+
+# Uncomment this to turn on verbose mode.
+#export DH_VERBOSE=1
+
+include /usr/share/quilt/quilt.make
+
+# some default definitions, important!
+#
+# Name of the source package
+psource:=i915-3.6-3.5-source
+pdkms:=i915-3.6-3.5-dkms
+sname:=i915-3.6-3.5
+sversion:=$(shell dpkg-parsechangelog|grep "^Version:"|cut -d" " -f2|rev|cut -d- -f2-|rev|cut -d':' -f2)
+
+### KERNEL SETUP
+### Setup the stuff needed for making kernel module packages
+### taken from /usr/share/kernel-package/sample.module.rules
+
+# prefix of the target package name
+PACKAGE=i915-3.6-3.5-dkms
+# modifieable for experiments or debugging m-a
+MA_DIR ?= /usr/share/modass
+# load generic variable handling
+-include $(MA_DIR)/include/genels ric.make
+# load default rules, including kdist, kdist_image, ...
+-include $(MA_DIR)/include/common-rules.make
+
+# module assistant calculates all needed things for us and sets
+# following variables:
+# KSRC (kernel source directory), KVERS (kernel version string), KDREV
+# (revision of the Debian kernel-image package), CC (the correct
+# compiler), VERSION (the final package version string), PKGNAME (full
+# package name with KVERS included), DEB_DESTDIR (path to store DEBs)
+
+# The kdist_configure target is called by make-kpkg modules_config and
+# by kdist* rules by dependency. It should configure the module so it is
+# ready for compilation (mostly useful for calling configure).
+# prep-deb-files from module-assistant creates the neccessary debian/ files
+kdist_configure: prep-deb-files
+
+# the kdist_clean target is called by make-kpkg modules_clean and from
+# kdist* rules. It is responsible for cleaning up any changes that have
+# been made by the other kdist_commands (except for the .deb files created)
+kdist_clean: clean
+ $(MAKE) $(MFLAGS) -f debian/rules clean
+
+### end KERNEL SETUP
+
+build:
+
+clean: clean-patched unpatch
+clean-patched:
+ dh_testdir
+ dh_clean
+
+install: DH_OPTIONS=
+install: build
+ dh_testdir
+ dh_testroot
+ dh_clean -k
+ dh_installdirs
+ # Create the directories to install the source into
+ dh_installdirs -p$(psource) usr/src/modules/$(sname)/debian
+ dh_installdirs -p$(pdkms) usr/src/$(sname)-$(sversion)
+ # Copy only the driver source to the proper locations
+ cp -a CHANGES README Makefile include drivers \
+ debian/$(psource)/usr/src/modules/$(sname)
+ cp -a Makefile include drivers debian/$(pdkms)/usr/src/$(sname)-$(sversion)
+ # Copy the needed debian/ pieces to the proper location
+ cp debian/*.modules.in* \
+ debian/$(psource)/usr/src/modules/$(sname)/debian
+ install -m 0755 debian/rules.modules debian/$(psource)/usr/src/modules/$(sname)/debian/rules
+ cd debian/$(psource)/usr/src && tar c modules | bzip2 -9 > $(sname).tar.bz2 && rm -rf modules
+ # Prepare dkms.conf from the dkms.conf.in template
+ sed "s/__VERSION__/$(sversion)/g" debian/dkms.conf.in > debian/$(pdkms)/usr/src/$(sname)-$(sversion)/dkms.conf
+ dh_install
+
+binary-arch: build install
+
+binary-indep: build install
+ dh_testdir
+ dh_testroot
+ dh_installchangelogs -A CHANGES
+ dh_install
+ dh_link
+ dh_compress
+ dh_fixperms
+ dh_installdeb
+ dh_gencontrol
+ dh_md5sums
+ dh_builddeb
+
+binary: binary-indep binary-arch
+.PHONY: build clean binary-indep binary-arch binary install kdist kdist_configure kdist_image kdist_clean
diff --git a/debian/rules.modules b/debian/rules.modules
new file mode 100644
index 0000000..c7536b0
--- /dev/null
+++ b/debian/rules.modules
@@ -0,0 +1,91 @@
+#!/usr/bin/make -f
+
+# Uncomment this to turn on verbose mode.
+#export DH_VERBOSE=1
+
+CFLAGS ?= -Wall -g
+
+ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
+ CFLAGS += -O0
+else
+ CFLAGS += -O2
+endif
+
+# some default definitions, important!
+#
+# Name of the source package
+psource:=i915-3.6-3.5-source
+
+# The short upstream name, used for the module source directory
+sname:=i915-3.6-3.5
+
+### KERNEL SETUP
+### Setup the stuff needed for making kernel module packages
+### taken from /usr/share/kernel-package/sample.module.rules
+
+# prefix of the target package name
+PACKAGE=i915-modules
+# modifieable for experiments or debugging m-a
+MA_DIR ?= /usr/share/modass
+# load generic variable handling
+-include $(MA_DIR)/include/generic.make
+# load default rules, including kdist, kdist_image, ...
+-include $(MA_DIR)/include/common-rules.make
+
+# module assistant calculates all needed things for us and sets
+# following variables:
+# KSRC (kernel source directory), KVERS (kernel version string), KDREV
+# (revision of the Debian kernel-image package), CC (the correct
+# compiler), VERSION (the final package version string), PKGNAME (full
+# package name with KVERS included), DEB_DESTDIR (path to store DEBs)
+
+# The kdist_configure target is called by make-kpkg modules_config and
+# by kdist* rules by dependency. It should configure the module so it is
+# ready for compilation (mostly useful for calling configure).
+# prep-deb-files from module-assistant creates the neccessary debian/ files
+kdist_configure: prep-deb-files
+
+# the kdist_clean target is called by make-kpkg modules_clean and from
+# kdist* rules. It is responsible for cleaning up any changes that have
+# been made by the other kdist_commands (except for the .deb files created)
+kdist_clean: clean
+ $(MAKE) $(MFLAGS) -f debian/rules clean
+#
+### end KERNEL SETUP
+
+# the binary-modules rule is invoked by module-assistant while processing the
+# kdist* targets. It is called by module-assistant or make-kpkg and *not*
+# during a normal build
+binary-modules: prep-deb-files
+ dh_testroot
+ dh_clean -k
+
+ # Build the module
+ $(MAKE) modules KSRC=$(KSRC) KVER=$(KVERS)
+
+ # Install the module
+ install -D -m 0644 i915.ko debian/$(PACKAGE)-$(KVERS)/lib/modules/$(KVERS)/updates/i915.ko
+ install -D -m 0644 intel_ips.ko debian/$(PACKAGE)-$(KVERS)/lib/modules/$(KVERS)/updates/intel_ips.ko
+ install -D -m 0644 drm.ko debian/$(PACKAGE)-$(KVERS)/lib/modules/$(KVERS)/updates/drm.ko
+ install -D -m 0644 drm_kms_helper.ko debian/$(PACKAGE)-$(KVERS)/lib/modules/$(KVERS)/updates/drm_kms_helper.ko
+ dh_installdocs README
+ dh_installchangelogs CHANGES
+ dh_installexamples debian/sysfs.conf
+ dh_compress
+ dh_fixperms
+ dh_installmodules
+ dh_installdeb
+ dh_gencontrol -- -v$(VERSION)
+ dh_md5sums
+ dh_builddeb --destdir=$(DEB_DESTDIR)
+ dh_clean -k
+
+clean:
+ dh_testdir
+
+ # Cleaning package
+ $(MAKE) clean
+
+ dh_clean
+
+.PHONY: clean binary-modules kdist kdist_configure kdist_image kdist_clean
diff --git a/drivers/gpu/drm/ati_pcigart.c b/drivers/gpu/drm/ati_pcigart.c
new file mode 100644
index 0000000..9afe495
--- /dev/null
+++ b/drivers/gpu/drm/ati_pcigart.c
@@ -0,0 +1,202 @@
+/**
+ * \file ati_pcigart.c
+ * ATI PCI GART support
+ *
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Wed Dec 13 21:52:19 2000 by gareth@valinux.com
+ *
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/export.h>
+#include "drmP.h"
+
+# define ATI_PCIGART_PAGE_SIZE 4096 /**< PCI GART page size */
+
+static int drm_ati_alloc_pcigart_table(struct drm_device *dev,
+ struct drm_ati_pcigart_info *gart_info)
+{
+ gart_info->table_handle = drm_pci_alloc(dev, gart_info->table_size,
+ PAGE_SIZE);
+ if (gart_info->table_handle == NULL)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void drm_ati_free_pcigart_table(struct drm_device *dev,
+ struct drm_ati_pcigart_info *gart_info)
+{
+ drm_pci_free(dev, gart_info->table_handle);
+ gart_info->table_handle = NULL;
+}
+
+int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
+{
+ struct drm_sg_mem *entry = dev->sg;
+ unsigned long pages;
+ int i;
+ int max_pages;
+
+ /* we need to support large memory configurations */
+ if (!entry) {
+ DRM_ERROR("no scatter/gather memory!\n");
+ return 0;
+ }
+
+ if (gart_info->bus_addr) {
+
+ max_pages = (gart_info->table_size / sizeof(u32));
+ pages = (entry->pages <= max_pages)
+ ? entry->pages : max_pages;
+
+ for (i = 0; i < pages; i++) {
+ if (!entry->busaddr[i])
+ break;
+ pci_unmap_page(dev->pdev, entry->busaddr[i],
+ PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+ }
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN)
+ gart_info->bus_addr = 0;
+ }
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN &&
+ gart_info->table_handle) {
+ drm_ati_free_pcigart_table(dev, gart_info);
+ }
+
+ return 1;
+}
+EXPORT_SYMBOL(drm_ati_pcigart_cleanup);
+
+int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
+{
+ struct drm_local_map *map = &gart_info->mapping;
+ struct drm_sg_mem *entry = dev->sg;
+ void *address = NULL;
+ unsigned long pages;
+ u32 *pci_gart = NULL, page_base, gart_idx;
+ dma_addr_t bus_address = 0;
+ int i, j, ret = 0;
+ int max_ati_pages, max_real_pages;
+
+ if (!entry) {
+ DRM_ERROR("no scatter/gather memory!\n");
+ goto done;
+ }
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
+ DRM_DEBUG("PCI: no table in VRAM: using normal RAM\n");
+
+ if (pci_set_dma_mask(dev->pdev, gart_info->table_mask)) {
+ DRM_ERROR("fail to set dma mask to 0x%Lx\n",
+ (unsigned long long)gart_info->table_mask);
+ ret = 1;
+ goto done;
+ }
+
+ ret = drm_ati_alloc_pcigart_table(dev, gart_info);
+ if (ret) {
+ DRM_ERROR("cannot allocate PCI GART page!\n");
+ goto done;
+ }
+
+ pci_gart = gart_info->table_handle->vaddr;
+ address = gart_info->table_handle->vaddr;
+ bus_address = gart_info->table_handle->busaddr;
+ } else {
+ address = gart_info->addr;
+ bus_address = gart_info->bus_addr;
+ DRM_DEBUG("PCI: Gart Table: VRAM %08LX mapped at %08lX\n",
+ (unsigned long long)bus_address,
+ (unsigned long)address);
+ }
+
+
+ max_ati_pages = (gart_info->table_size / sizeof(u32));
+ max_real_pages = max_ati_pages / (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE);
+ pages = (entry->pages <= max_real_pages)
+ ? entry->pages : max_real_pages;
+
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
+ memset(pci_gart, 0, max_ati_pages * sizeof(u32));
+ } else {
+ memset_io((void __iomem *)map->handle, 0, max_ati_pages * sizeof(u32));
+ }
+
+ gart_idx = 0;
+ for (i = 0; i < pages; i++) {
+ /* we need to support large memory configurations */
+ entry->busaddr[i] = pci_map_page(dev->pdev, entry->pagelist[i],
+ 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+ if (pci_dma_mapping_error(dev->pdev, entry->busaddr[i])) {
+ DRM_ERROR("unable to map PCIGART pages!\n");
+ drm_ati_pcigart_cleanup(dev, gart_info);
+ address = NULL;
+ bus_address = 0;
+ goto done;
+ }
+ page_base = (u32) entry->busaddr[i];
+
+ for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
+ u32 val;
+
+ switch(gart_info->gart_reg_if) {
+ case DRM_ATI_GART_IGP:
+ val = page_base | 0xc;
+ break;
+ case DRM_ATI_GART_PCIE:
+ val = (page_base >> 8) | 0xc;
+ break;
+ default:
+ case DRM_ATI_GART_PCI:
+ val = page_base;
+ break;
+ }
+ if (gart_info->gart_table_location ==
+ DRM_ATI_GART_MAIN)
+ pci_gart[gart_idx] = cpu_to_le32(val);
+ else
+ DRM_WRITE32(map, gart_idx * sizeof(u32), val);
+ gart_idx++;
+ page_base += ATI_PCIGART_PAGE_SIZE;
+ }
+ }
+ ret = 1;
+
+#if defined(__i386__) || defined(__x86_64__)
+ wbinvd();
+#else
+ mb();
+#endif
+
+ done:
+ gart_info->addr = address;
+ gart_info->bus_addr = bus_address;
+ return ret;
+}
+EXPORT_SYMBOL(drm_ati_pcigart_init);
diff --git a/drivers/gpu/drm/drm_agpsupport.c b/drivers/gpu/drm/drm_agpsupport.c
new file mode 100644
index 0000000..0cb2ba5
--- /dev/null
+++ b/drivers/gpu/drm/drm_agpsupport.c
@@ -0,0 +1,469 @@
+/**
+ * \file drm_agpsupport.c
+ * DRM support for AGP/GART backend
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#if __OS_HAS_AGP
+
+#include <asm/agp.h>
+
+/**
+ * Get AGP information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a (output) drm_agp_info structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device has been initialized and acquired and fills in the
+ * drm_agp_info structure with the information in drm_agp_head::agp_info.
+ */
+int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info)
+{
+ DRM_AGP_KERN *kern;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+
+ kern = &dev->agp->agp_info;
+ info->agp_version_major = kern->version.major;
+ info->agp_version_minor = kern->version.minor;
+ info->mode = kern->mode;
+ info->aperture_base = kern->aper_base;
+ info->aperture_size = kern->aper_size * 1024 * 1024;
+ info->memory_allowed = kern->max_memory << PAGE_SHIFT;
+ info->memory_used = kern->current_memory << PAGE_SHIFT;
+ info->id_vendor = kern->device->vendor;
+ info->id_device = kern->device->device;
+
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_agp_info);
+
+int drm_agp_info_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_info *info = data;
+ int err;
+
+ err = drm_agp_info(dev, info);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+/**
+ * Acquire the AGP device.
+ *
+ * \param dev DRM device that is to acquire AGP.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device hasn't been acquired before and calls
+ * \c agp_backend_acquire.
+ */
+int drm_agp_acquire(struct drm_device * dev)
+{
+ if (!dev->agp)
+ return -ENODEV;
+ if (dev->agp->acquired)
+ return -EBUSY;
+ if (!(dev->agp->bridge = agp_backend_acquire(dev->pdev)))
+ return -ENODEV;
+ dev->agp->acquired = 1;
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_agp_acquire);
+
+/**
+ * Acquire the AGP device (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device hasn't been acquired before and calls
+ * \c agp_backend_acquire.
+ */
+int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ return drm_agp_acquire((struct drm_device *) file_priv->minor->dev);
+}
+
+/**
+ * Release the AGP device.
+ *
+ * \param dev DRM device that is to release AGP.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device has been acquired and calls \c agp_backend_release.
+ */
+int drm_agp_release(struct drm_device * dev)
+{
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ agp_backend_release(dev->agp->bridge);
+ dev->agp->acquired = 0;
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_release);
+
+int drm_agp_release_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ return drm_agp_release(dev);
+}
+
+/**
+ * Enable the AGP bus.
+ *
+ * \param dev DRM device that has previously acquired AGP.
+ * \param mode Requested AGP mode.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device has been acquired but not enabled, and calls
+ * \c agp_enable.
+ */
+int drm_agp_enable(struct drm_device * dev, struct drm_agp_mode mode)
+{
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+
+ dev->agp->mode = mode.mode;
+ agp_enable(dev->agp->bridge, mode.mode);
+ dev->agp->enabled = 1;
+ return 0;
+}
+
+EXPORT_SYMBOL(drm_agp_enable);
+
+int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_mode *mode = data;
+
+ return drm_agp_enable(dev, *mode);
+}
+
+/**
+ * Allocate AGP memory.
+ *
+ * \param inode device inode.
+ * \param file_priv file private pointer.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_buffer structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and has been acquired, allocates the
+ * memory via agp_allocate_memory() and creates a drm_agp_mem entry for it.
+ */
+int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request)
+{
+ struct drm_agp_mem *entry;
+ DRM_AGP_MEM *memory;
+ unsigned long pages;
+ u32 type;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = kmalloc(sizeof(*entry), GFP_KERNEL)))
+ return -ENOMEM;
+
+ memset(entry, 0, sizeof(*entry));
+
+ pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE;
+ type = (u32) request->type;
+ if (!(memory = agp_allocate_memory(dev->agp->bridge, pages, type))) {
+ kfree(entry);
+ return -ENOMEM;
+ }
+
+ entry->handle = (unsigned long)memory->key + 1;
+ entry->memory = memory;
+ entry->bound = 0;
+ entry->pages = pages;
+ list_add(&entry->head, &dev->agp->memory);
+
+ request->handle = entry->handle;
+ request->physical = memory->physical;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_alloc);
+
+
+int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_buffer *request = data;
+
+ return drm_agp_alloc(dev, request);
+}
+
+/**
+ * Search for the AGP memory entry associated with a handle.
+ *
+ * \param dev DRM device structure.
+ * \param handle AGP memory handle.
+ * \return pointer to the drm_agp_mem structure associated with \p handle.
+ *
+ * Walks through drm_agp_head::memory until finding a matching handle.
+ */
+static struct drm_agp_mem *drm_agp_lookup_entry(struct drm_device * dev,
+ unsigned long handle)
+{
+ struct drm_agp_mem *entry;
+
+ list_for_each_entry(entry, &dev->agp->memory, head) {
+ if (entry->handle == handle)
+ return entry;
+ }
+ return NULL;
+}
+
+/**
+ * Unbind AGP memory from the GATT (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_binding structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and acquired, looks-up the AGP memory
+ * entry and passes it to the unbind_agp() function.
+ */
+int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request)
+{
+ struct drm_agp_mem *entry;
+ int ret;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
+ return -EINVAL;
+ if (!entry->bound)
+ return -EINVAL;
+ ret = drm_unbind_agp(entry->memory);
+ if (ret == 0)
+ entry->bound = 0;
+ return ret;
+}
+EXPORT_SYMBOL(drm_agp_unbind);
+
+
+int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_binding *request = data;
+
+ return drm_agp_unbind(dev, request);
+}
+
+/**
+ * Bind AGP memory into the GATT (ioctl)
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_binding structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and has been acquired and that no memory
+ * is currently bound into the GATT. Looks-up the AGP memory entry and passes
+ * it to bind_agp() function.
+ */
+int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request)
+{
+ struct drm_agp_mem *entry;
+ int retcode;
+ int page;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
+ return -EINVAL;
+ if (entry->bound)
+ return -EINVAL;
+ page = (request->offset + PAGE_SIZE - 1) / PAGE_SIZE;
+ if ((retcode = drm_bind_agp(entry->memory, page)))
+ return retcode;
+ entry->bound = dev->agp->base + (page << PAGE_SHIFT);
+ DRM_DEBUG("base = 0x%lx entry->bound = 0x%lx\n",
+ dev->agp->base, entry->bound);
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_bind);
+
+
+int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_binding *request = data;
+
+ return drm_agp_bind(dev, request);
+}
+
+/**
+ * Free AGP memory (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_agp_buffer structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the AGP device is present and has been acquired and looks up the
+ * AGP memory entry. If the memory it's currently bound, unbind it via
+ * unbind_agp(). Frees it via free_agp() as well as the entry itself
+ * and unlinks from the doubly linked list it's inserted in.
+ */
+int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request)
+{
+ struct drm_agp_mem *entry;
+
+ if (!dev->agp || !dev->agp->acquired)
+ return -EINVAL;
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
+ return -EINVAL;
+ if (entry->bound)
+ drm_unbind_agp(entry->memory);
+
+ list_del(&entry->head);
+
+ drm_free_agp(entry->memory, entry->pages);
+ kfree(entry);
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_free);
+
+
+
+int drm_agp_free_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_agp_buffer *request = data;
+
+ return drm_agp_free(dev, request);
+}
+
+/**
+ * Initialize the AGP resources.
+ *
+ * \return pointer to a drm_agp_head structure.
+ *
+ * Gets the drm_agp_t structure which is made available by the agpgart module
+ * via the inter_module_* functions. Creates and initializes a drm_agp_head
+ * structure.
+ */
+struct drm_agp_head *drm_agp_init(struct drm_device *dev)
+{
+ struct drm_agp_head *head = NULL;
+
+ if (!(head = kmalloc(sizeof(*head), GFP_KERNEL)))
+ return NULL;
+ memset((void *)head, 0, sizeof(*head));
+ head->bridge = agp_find_bridge(dev->pdev);
+ if (!head->bridge) {
+ if (!(head->bridge = agp_backend_acquire(dev->pdev))) {
+ kfree(head);
+ return NULL;
+ }
+ agp_copy_info(head->bridge, &head->agp_info);
+ agp_backend_release(head->bridge);
+ } else {
+ agp_copy_info(head->bridge, &head->agp_info);
+ }
+ if (head->agp_info.chipset == NOT_SUPPORTED) {
+ kfree(head);
+ return NULL;
+ }
+ INIT_LIST_HEAD(&head->memory);
+ head->cant_use_aperture = head->agp_info.cant_use_aperture;
+ head->page_mask = head->agp_info.page_mask;
+ head->base = head->agp_info.aper_base;
+ return head;
+}
+
+/**
+ * Binds a collection of pages into AGP memory at the given offset, returning
+ * the AGP memory structure containing them.
+ *
+ * No reference is held on the pages during this time -- it is up to the
+ * caller to handle that.
+ */
+DRM_AGP_MEM *
+drm_agp_bind_pages(struct drm_device *dev,
+ struct page **pages,
+ unsigned long num_pages,
+ uint32_t gtt_offset,
+ u32 type)
+{
+ DRM_AGP_MEM *mem;
+ int ret, i;
+
+ DRM_DEBUG("\n");
+
+ mem = agp_allocate_memory(dev->agp->bridge, num_pages,
+ type);
+ if (mem == NULL) {
+ DRM_ERROR("Failed to allocate memory for %ld pages\n",
+ num_pages);
+ return NULL;
+ }
+
+ for (i = 0; i < num_pages; i++)
+ mem->pages[i] = pages[i];
+ mem->page_count = num_pages;
+
+ mem->is_flushed = true;
+ ret = agp_bind_memory(mem, gtt_offset / PAGE_SIZE);
+ if (ret != 0) {
+ DRM_ERROR("Failed to bind AGP memory: %d\n", ret);
+ agp_free_memory(mem);
+ return NULL;
+ }
+
+ return mem;
+}
+EXPORT_SYMBOL(drm_agp_bind_pages);
+
+#endif /* __OS_HAS_AGP */
diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c
new file mode 100644
index 0000000..ba23790
--- /dev/null
+++ b/drivers/gpu/drm/drm_auth.c
@@ -0,0 +1,194 @@
+/**
+ * \file drm_auth.c
+ * IOCTLs for authentication
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+
+/**
+ * Find the file with the given magic number.
+ *
+ * \param dev DRM device.
+ * \param magic magic number.
+ *
+ * Searches in drm_device::magiclist within all files with the same hash key
+ * the one with matching magic number, while holding the drm_device::struct_mutex
+ * lock.
+ */
+static struct drm_file *drm_find_file(struct drm_master *master, drm_magic_t magic)
+{
+ struct drm_file *retval = NULL;
+ struct drm_magic_entry *pt;
+ struct drm_hash_item *hash;
+ struct drm_device *dev = master->minor->dev;
+
+ mutex_lock(&dev->struct_mutex);
+ if (!drm_ht_find_item(&master->magiclist, (unsigned long)magic, &hash)) {
+ pt = drm_hash_entry(hash, struct drm_magic_entry, hash_item);
+ retval = pt->priv;
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return retval;
+}
+
+/**
+ * Adds a magic number.
+ *
+ * \param dev DRM device.
+ * \param priv file private data.
+ * \param magic magic number.
+ *
+ * Creates a drm_magic_entry structure and appends to the linked list
+ * associated the magic number hash key in drm_device::magiclist, while holding
+ * the drm_device::struct_mutex lock.
+ */
+static int drm_add_magic(struct drm_master *master, struct drm_file *priv,
+ drm_magic_t magic)
+{
+ struct drm_magic_entry *entry;
+ struct drm_device *dev = master->minor->dev;
+ DRM_DEBUG("%d\n", magic);
+
+ entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+ entry->priv = priv;
+ entry->hash_item.key = (unsigned long)magic;
+ mutex_lock(&dev->struct_mutex);
+ drm_ht_insert_item(&master->magiclist, &entry->hash_item);
+ list_add_tail(&entry->head, &master->magicfree);
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/**
+ * Remove a magic number.
+ *
+ * \param dev DRM device.
+ * \param magic magic number.
+ *
+ * Searches and unlinks the entry in drm_device::magiclist with the magic
+ * number hash key, while holding the drm_device::struct_mutex lock.
+ */
+int drm_remove_magic(struct drm_master *master, drm_magic_t magic)
+{
+ struct drm_magic_entry *pt;
+ struct drm_hash_item *hash;
+ struct drm_device *dev = master->minor->dev;
+
+ DRM_DEBUG("%d\n", magic);
+
+ mutex_lock(&dev->struct_mutex);
+ if (drm_ht_find_item(&master->magiclist, (unsigned long)magic, &hash)) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+ pt = drm_hash_entry(hash, struct drm_magic_entry, hash_item);
+ drm_ht_remove_item(&master->magiclist, hash);
+ list_del(&pt->head);
+ mutex_unlock(&dev->struct_mutex);
+
+ kfree(pt);
+
+ return 0;
+}
+
+/**
+ * Get a unique magic number (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a resulting drm_auth structure.
+ * \return zero on success, or a negative number on failure.
+ *
+ * If there is a magic number in drm_file::magic then use it, otherwise
+ * searches an unique non-zero magic number and add it associating it with \p
+ * file_priv.
+ * This ioctl needs protection by the drm_global_mutex, which protects
+ * struct drm_file::magic and struct drm_magic_entry::priv.
+ */
+int drm_getmagic(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ static drm_magic_t sequence = 0;
+ static DEFINE_SPINLOCK(lock);
+ struct drm_auth *auth = data;
+
+ /* Find unique magic */
+ if (file_priv->magic) {
+ auth->magic = file_priv->magic;
+ } else {
+ do {
+ spin_lock(&lock);
+ if (!sequence)
+ ++sequence; /* reserve 0 */
+ auth->magic = sequence++;
+ spin_unlock(&lock);
+ } while (drm_find_file(file_priv->master, auth->magic));
+ file_priv->magic = auth->magic;
+ drm_add_magic(file_priv->master, file_priv, auth->magic);
+ }
+
+ DRM_DEBUG("%u\n", auth->magic);
+
+ return 0;
+}
+
+/**
+ * Authenticate with a magic.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_auth structure.
+ * \return zero if authentication successed, or a negative number otherwise.
+ *
+ * Checks if \p file_priv is associated with the magic number passed in \arg.
+ * This ioctl needs protection by the drm_global_mutex, which protects
+ * struct drm_file::magic and struct drm_magic_entry::priv.
+ */
+int drm_authmagic(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_auth *auth = data;
+ struct drm_file *file;
+
+ DRM_DEBUG("%u\n", auth->magic);
+ if ((file = drm_find_file(file_priv->master, auth->magic))) {
+ file->authenticated = 1;
+ drm_remove_magic(file_priv->master, auth->magic);
+ return 0;
+ }
+ return -EINVAL;
+}
diff --git a/drivers/gpu/drm/drm_buffer.c b/drivers/gpu/drm/drm_buffer.c
new file mode 100644
index 0000000..08ccefe
--- /dev/null
+++ b/drivers/gpu/drm/drm_buffer.c
@@ -0,0 +1,185 @@
+/**************************************************************************
+ *
+ * Copyright 2010 Pauli Nieminen.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ **************************************************************************/
+/*
+ * Multipart buffer for coping data which is larger than the page size.
+ *
+ * Authors:
+ * Pauli Nieminen <suokkos-at-gmail-dot-com>
+ */
+
+#include <linux/export.h>
+#include "drm_buffer.h"
+
+/**
+ * Allocate the drm buffer object.
+ *
+ * buf: Pointer to a pointer where the object is stored.
+ * size: The number of bytes to allocate.
+ */
+int drm_buffer_alloc(struct drm_buffer **buf, int size)
+{
+ int nr_pages = size / PAGE_SIZE + 1;
+ int idx;
+
+ /* Allocating pointer table to end of structure makes drm_buffer
+ * variable sized */
+ *buf = kzalloc(sizeof(struct drm_buffer) + nr_pages*sizeof(char *),
+ GFP_KERNEL);
+
+ if (*buf == NULL) {
+ DRM_ERROR("Failed to allocate drm buffer object to hold"
+ " %d bytes in %d pages.\n",
+ size, nr_pages);
+ return -ENOMEM;
+ }
+
+ (*buf)->size = size;
+
+ for (idx = 0; idx < nr_pages; ++idx) {
+
+ (*buf)->data[idx] =
+ kmalloc(min(PAGE_SIZE, size - idx * PAGE_SIZE),
+ GFP_KERNEL);
+
+
+ if ((*buf)->data[idx] == NULL) {
+ DRM_ERROR("Failed to allocate %dth page for drm"
+ " buffer with %d bytes and %d pages.\n",
+ idx + 1, size, nr_pages);
+ goto error_out;
+ }
+
+ }
+
+ return 0;
+
+error_out:
+
+ /* Only last element can be null pointer so check for it first. */
+ if ((*buf)->data[idx])
+ kfree((*buf)->data[idx]);
+
+ for (--idx; idx >= 0; --idx)
+ kfree((*buf)->data[idx]);
+
+ kfree(*buf);
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(drm_buffer_alloc);
+
+/**
+ * Copy the user data to the begin of the buffer and reset the processing
+ * iterator.
+ *
+ * user_data: A pointer the data that is copied to the buffer.
+ * size: The Number of bytes to copy.
+ */
+int drm_buffer_copy_from_user(struct drm_buffer *buf,
+ void __user *user_data, int size)
+{
+ int nr_pages = size / PAGE_SIZE + 1;
+ int idx;
+
+ if (size > buf->size) {
+ DRM_ERROR("Requesting to copy %d bytes to a drm buffer with"
+ " %d bytes space\n",
+ size, buf->size);
+ return -EFAULT;
+ }
+
+ for (idx = 0; idx < nr_pages; ++idx) {
+
+ if (DRM_COPY_FROM_USER(buf->data[idx],
+ user_data + idx * PAGE_SIZE,
+ min(PAGE_SIZE, size - idx * PAGE_SIZE))) {
+ DRM_ERROR("Failed to copy user data (%p) to drm buffer"
+ " (%p) %dth page.\n",
+ user_data, buf, idx);
+ return -EFAULT;
+
+ }
+ }
+ buf->iterator = 0;
+ return 0;
+}
+EXPORT_SYMBOL(drm_buffer_copy_from_user);
+
+/**
+ * Free the drm buffer object
+ */
+void drm_buffer_free(struct drm_buffer *buf)
+{
+
+ if (buf != NULL) {
+
+ int nr_pages = buf->size / PAGE_SIZE + 1;
+ int idx;
+ for (idx = 0; idx < nr_pages; ++idx)
+ kfree(buf->data[idx]);
+
+ kfree(buf);
+ }
+}
+EXPORT_SYMBOL(drm_buffer_free);
+
+/**
+ * Read an object from buffer that may be split to multiple parts. If object
+ * is not split function just returns the pointer to object in buffer. But in
+ * case of split object data is copied to given stack object that is suplied
+ * by caller.
+ *
+ * The processing location of the buffer is also advanced to the next byte
+ * after the object.
+ *
+ * objsize: The size of the objet in bytes.
+ * stack_obj: A pointer to a memory location where object can be copied.
+ */
+void *drm_buffer_read_object(struct drm_buffer *buf,
+ int objsize, void *stack_obj)
+{
+ int idx = drm_buffer_index(buf);
+ int page = drm_buffer_page(buf);
+ void *obj = NULL;
+
+ if (idx + objsize <= PAGE_SIZE) {
+ obj = &buf->data[page][idx];
+ } else {
+ /* The object is split which forces copy to temporary object.*/
+ int beginsz = PAGE_SIZE - idx;
+ memcpy(stack_obj, &buf->data[page][idx], beginsz);
+
+ memcpy(stack_obj + beginsz, &buf->data[page + 1][0],
+ objsize - beginsz);
+
+ obj = stack_obj;
+ }
+
+ drm_buffer_advance(buf, objsize);
+ return obj;
+}
+EXPORT_SYMBOL(drm_buffer_read_object);
diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c
new file mode 100644
index 0000000..b356c71
--- /dev/null
+++ b/drivers/gpu/drm/drm_bufs.c
@@ -0,0 +1,1614 @@
+/**
+ * \file drm_bufs.c
+ * Generic buffer template
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include <linux/log2.h>
+#include <linux/export.h>
+#include <asm/shmparam.h>
+#include "drmP.h"
+
+static struct drm_map_list *drm_find_matching_map(struct drm_device *dev,
+ struct drm_local_map *map)
+{
+ struct drm_map_list *entry;
+ list_for_each_entry(entry, &dev->maplist, head) {
+ /*
+ * Because the kernel-userspace ABI is fixed at a 32-bit offset
+ * while PCI resources may live above that, we only compare the
+ * lower 32 bits of the map offset for maps of type
+ * _DRM_FRAMEBUFFER or _DRM_REGISTERS.
+ * It is assumed that if a driver have more than one resource
+ * of each type, the lower 32 bits are different.
+ */
+ if (!entry->map ||
+ map->type != entry->map->type ||
+ entry->master != dev->primary->master)
+ continue;
+ switch (map->type) {
+ case _DRM_SHM:
+ if (map->flags != _DRM_CONTAINS_LOCK)
+ break;
+ return entry;
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+ if ((entry->map->offset & 0xffffffff) ==
+ (map->offset & 0xffffffff))
+ return entry;
+ default: /* Make gcc happy */
+ ;
+ }
+ if (entry->map->offset == map->offset)
+ return entry;
+ }
+
+ return NULL;
+}
+
+static int drm_map_handle(struct drm_device *dev, struct drm_hash_item *hash,
+ unsigned long user_token, int hashed_handle, int shm)
+{
+ int use_hashed_handle, shift;
+ unsigned long add;
+
+#if (BITS_PER_LONG == 64)
+ use_hashed_handle = ((user_token & 0xFFFFFFFF00000000UL) || hashed_handle);
+#elif (BITS_PER_LONG == 32)
+ use_hashed_handle = hashed_handle;
+#else
+#error Unsupported long size. Neither 64 nor 32 bits.
+#endif
+
+ if (!use_hashed_handle) {
+ int ret;
+ hash->key = user_token >> PAGE_SHIFT;
+ ret = drm_ht_insert_item(&dev->map_hash, hash);
+ if (ret != -EINVAL)
+ return ret;
+ }
+
+ shift = 0;
+ add = DRM_MAP_HASH_OFFSET >> PAGE_SHIFT;
+ if (shm && (SHMLBA > PAGE_SIZE)) {
+ int bits = ilog2(SHMLBA >> PAGE_SHIFT) + 1;
+
+ /* For shared memory, we have to preserve the SHMLBA
+ * bits of the eventual vma->vm_pgoff value during
+ * mmap(). Otherwise we run into cache aliasing problems
+ * on some platforms. On these platforms, the pgoff of
+ * a mmap() request is used to pick a suitable virtual
+ * address for the mmap() region such that it will not
+ * cause cache aliasing problems.
+ *
+ * Therefore, make sure the SHMLBA relevant bits of the
+ * hash value we use are equal to those in the original
+ * kernel virtual address.
+ */
+ shift = bits;
+ add |= ((user_token >> PAGE_SHIFT) & ((1UL << bits) - 1UL));
+ }
+
+ return drm_ht_just_insert_please(&dev->map_hash, hash,
+ user_token, 32 - PAGE_SHIFT - 3,
+ shift, add);
+}
+
+/**
+ * Core function to create a range of memory available for mapping by a
+ * non-root process.
+ *
+ * Adjusts the memory offset to its absolute value according to the mapping
+ * type. Adds the map to the map list drm_device::maplist. Adds MTRR's where
+ * applicable and if supported by the kernel.
+ */
+static int drm_addmap_core(struct drm_device * dev, resource_size_t offset,
+ unsigned int size, enum drm_map_type type,
+ enum drm_map_flags flags,
+ struct drm_map_list ** maplist)
+{
+ struct drm_local_map *map;
+ struct drm_map_list *list;
+ drm_dma_handle_t *dmah;
+ unsigned long user_token;
+ int ret;
+
+ map = kmalloc(sizeof(*map), GFP_KERNEL);
+ if (!map)
+ return -ENOMEM;
+
+ map->offset = offset;
+ map->size = size;
+ map->flags = flags;
+ map->type = type;
+
+ /* Only allow shared memory to be removable since we only keep enough
+ * book keeping information about shared memory to allow for removal
+ * when processes fork.
+ */
+ if ((map->flags & _DRM_REMOVABLE) && map->type != _DRM_SHM) {
+ kfree(map);
+ return -EINVAL;
+ }
+ DRM_DEBUG("offset = 0x%08llx, size = 0x%08lx, type = %d\n",
+ (unsigned long long)map->offset, map->size, map->type);
+
+ /* page-align _DRM_SHM maps. They are allocated here so there is no security
+ * hole created by that and it works around various broken drivers that use
+ * a non-aligned quantity to map the SAREA. --BenH
+ */
+ if (map->type == _DRM_SHM)
+ map->size = PAGE_ALIGN(map->size);
+
+ if ((map->offset & (~(resource_size_t)PAGE_MASK)) || (map->size & (~PAGE_MASK))) {
+ kfree(map);
+ return -EINVAL;
+ }
+ map->mtrr = -1;
+ map->handle = NULL;
+
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+#if !defined(__sparc__) && !defined(__alpha__) && !defined(__ia64__) && !defined(__powerpc64__) && !defined(__x86_64__) && !defined(__arm__)
+ if (map->offset + (map->size-1) < map->offset ||
+ map->offset < virt_to_phys(high_memory)) {
+ kfree(map);
+ return -EINVAL;
+ }
+#endif
+ /* Some drivers preinitialize some maps, without the X Server
+ * needing to be aware of it. Therefore, we just return success
+ * when the server tries to create a duplicate map.
+ */
+ list = drm_find_matching_map(dev, map);
+ if (list != NULL) {
+ if (list->map->size != map->size) {
+ DRM_DEBUG("Matching maps of type %d with "
+ "mismatched sizes, (%ld vs %ld)\n",
+ map->type, map->size,
+ list->map->size);
+ list->map->size = map->size;
+ }
+
+ kfree(map);
+ *maplist = list;
+ return 0;
+ }
+
+ if (drm_core_has_MTRR(dev)) {
+ if (map->type == _DRM_FRAME_BUFFER ||
+ (map->flags & _DRM_WRITE_COMBINING)) {
+ map->mtrr = mtrr_add(map->offset, map->size,
+ MTRR_TYPE_WRCOMB, 1);
+ }
+ }
+ if (map->type == _DRM_REGISTERS) {
+ map->handle = ioremap(map->offset, map->size);
+ if (!map->handle) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ }
+
+ break;
+ case _DRM_SHM:
+ list = drm_find_matching_map(dev, map);
+ if (list != NULL) {
+ if(list->map->size != map->size) {
+ DRM_DEBUG("Matching maps of type %d with "
+ "mismatched sizes, (%ld vs %ld)\n",
+ map->type, map->size, list->map->size);
+ list->map->size = map->size;
+ }
+
+ kfree(map);
+ *maplist = list;
+ return 0;
+ }
+ map->handle = vmalloc_user(map->size);
+ DRM_DEBUG("%lu %d %p\n",
+ map->size, drm_order(map->size), map->handle);
+ if (!map->handle) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ map->offset = (unsigned long)map->handle;
+ if (map->flags & _DRM_CONTAINS_LOCK) {
+ /* Prevent a 2nd X Server from creating a 2nd lock */
+ if (dev->primary->master->lock.hw_lock != NULL) {
+ vfree(map->handle);
+ kfree(map);
+ return -EBUSY;
+ }
+ dev->sigdata.lock = dev->primary->master->lock.hw_lock = map->handle; /* Pointer to lock */
+ }
+ break;
+ case _DRM_AGP: {
+ struct drm_agp_mem *entry;
+ int valid = 0;
+
+ if (!drm_core_has_AGP(dev)) {
+ kfree(map);
+ return -EINVAL;
+ }
+#ifdef __alpha__
+ map->offset += dev->hose->mem_space->start;
+#endif
+ /* In some cases (i810 driver), user space may have already
+ * added the AGP base itself, because dev->agp->base previously
+ * only got set during AGP enable. So, only add the base
+ * address if the map's offset isn't already within the
+ * aperture.
+ */
+ if (map->offset < dev->agp->base ||
+ map->offset > dev->agp->base +
+ dev->agp->agp_info.aper_size * 1024 * 1024 - 1) {
+ map->offset += dev->agp->base;
+ }
+ map->mtrr = dev->agp->agp_mtrr; /* for getmap */
+
+ /* This assumes the DRM is in total control of AGP space.
+ * It's not always the case as AGP can be in the control
+ * of user space (i.e. i810 driver). So this loop will get
+ * skipped and we double check that dev->agp->memory is
+ * actually set as well as being invalid before EPERM'ing
+ */
+ list_for_each_entry(entry, &dev->agp->memory, head) {
+ if ((map->offset >= entry->bound) &&
+ (map->offset + map->size <= entry->bound + entry->pages * PAGE_SIZE)) {
+ valid = 1;
+ break;
+ }
+ }
+ if (!list_empty(&dev->agp->memory) && !valid) {
+ kfree(map);
+ return -EPERM;
+ }
+ DRM_DEBUG("AGP offset = 0x%08llx, size = 0x%08lx\n",
+ (unsigned long long)map->offset, map->size);
+
+ break;
+ }
+ case _DRM_GEM:
+ DRM_ERROR("tried to addmap GEM object\n");
+ break;
+ case _DRM_SCATTER_GATHER:
+ if (!dev->sg) {
+ kfree(map);
+ return -EINVAL;
+ }
+ map->offset += (unsigned long)dev->sg->virtual;
+ break;
+ case _DRM_CONSISTENT:
+ /* dma_addr_t is 64bit on i386 with CONFIG_HIGHMEM64G,
+ * As we're limiting the address to 2^32-1 (or less),
+ * casting it down to 32 bits is no problem, but we
+ * need to point to a 64bit variable first. */
+ dmah = drm_pci_alloc(dev, map->size, map->size);
+ if (!dmah) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ map->handle = dmah->vaddr;
+ map->offset = (unsigned long)dmah->busaddr;
+ kfree(dmah);
+ break;
+ default:
+ kfree(map);
+ return -EINVAL;
+ }
+
+ list = kzalloc(sizeof(*list), GFP_KERNEL);
+ if (!list) {
+ if (map->type == _DRM_REGISTERS)
+ iounmap(map->handle);
+ kfree(map);
+ return -EINVAL;
+ }
+ list->map = map;
+
+ mutex_lock(&dev->struct_mutex);
+ list_add(&list->head, &dev->maplist);
+
+ /* Assign a 32-bit handle */
+ /* We do it here so that dev->struct_mutex protects the increment */
+ user_token = (map->type == _DRM_SHM) ? (unsigned long)map->handle :
+ map->offset;
+ ret = drm_map_handle(dev, &list->hash, user_token, 0,
+ (map->type == _DRM_SHM));
+ if (ret) {
+ if (map->type == _DRM_REGISTERS)
+ iounmap(map->handle);
+ kfree(map);
+ kfree(list);
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
+
+ list->user_token = list->hash.key << PAGE_SHIFT;
+ mutex_unlock(&dev->struct_mutex);
+
+ if (!(map->flags & _DRM_DRIVER))
+ list->master = dev->primary->master;
+ *maplist = list;
+ return 0;
+ }
+
+int drm_addmap(struct drm_device * dev, resource_size_t offset,
+ unsigned int size, enum drm_map_type type,
+ enum drm_map_flags flags, struct drm_local_map ** map_ptr)
+{
+ struct drm_map_list *list;
+ int rc;
+
+ rc = drm_addmap_core(dev, offset, size, type, flags, &list);
+ if (!rc)
+ *map_ptr = list->map;
+ return rc;
+}
+
+EXPORT_SYMBOL(drm_addmap);
+
+/**
+ * Ioctl to specify a range of memory that is available for mapping by a
+ * non-root process.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_map structure.
+ * \return zero on success or a negative value on error.
+ *
+ */
+int drm_addmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_map *map = data;
+ struct drm_map_list *maplist;
+ int err;
+
+ if (!(capable(CAP_SYS_ADMIN) || map->type == _DRM_AGP || map->type == _DRM_SHM))
+ return -EPERM;
+
+ err = drm_addmap_core(dev, map->offset, map->size, map->type,
+ map->flags, &maplist);
+
+ if (err)
+ return err;
+
+ /* avoid a warning on 64-bit, this casting isn't very nice, but the API is set so too late */
+ map->handle = (void *)(unsigned long)maplist->user_token;
+ return 0;
+}
+
+/**
+ * Remove a map private from list and deallocate resources if the mapping
+ * isn't in use.
+ *
+ * Searches the map on drm_device::maplist, removes it from the list, see if
+ * its being used, and free any associate resource (such as MTRR's) if it's not
+ * being on use.
+ *
+ * \sa drm_addmap
+ */
+int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map)
+{
+ struct drm_map_list *r_list = NULL, *list_t;
+ drm_dma_handle_t dmah;
+ int found = 0;
+ struct drm_master *master;
+
+ /* Find the list entry for the map and remove it */
+ list_for_each_entry_safe(r_list, list_t, &dev->maplist, head) {
+ if (r_list->map == map) {
+ master = r_list->master;
+ list_del(&r_list->head);
+ drm_ht_remove_key(&dev->map_hash,
+ r_list->user_token >> PAGE_SHIFT);
+ kfree(r_list);
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ return -EINVAL;
+
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ iounmap(map->handle);
+ /* FALLTHROUGH */
+ case _DRM_FRAME_BUFFER:
+ if (drm_core_has_MTRR(dev) && map->mtrr >= 0) {
+ int retcode;
+ retcode = mtrr_del(map->mtrr, map->offset, map->size);
+ DRM_DEBUG("mtrr_del=%d\n", retcode);
+ }
+ break;
+ case _DRM_SHM:
+ vfree(map->handle);
+ if (master) {
+ if (dev->sigdata.lock == master->lock.hw_lock)
+ dev->sigdata.lock = NULL;
+ master->lock.hw_lock = NULL; /* SHM removed */
+ master->lock.file_priv = NULL;
+ wake_up_interruptible_all(&master->lock.lock_queue);
+ }
+ break;
+ case _DRM_AGP:
+ case _DRM_SCATTER_GATHER:
+ break;
+ case _DRM_CONSISTENT:
+ dmah.vaddr = map->handle;
+ dmah.busaddr = map->offset;
+ dmah.size = map->size;
+ __drm_pci_free(dev, &dmah);
+ break;
+ case _DRM_GEM:
+ DRM_ERROR("tried to rmmap GEM object\n");
+ break;
+ }
+ kfree(map);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_rmmap_locked);
+
+int drm_rmmap(struct drm_device *dev, struct drm_local_map *map)
+{
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ ret = drm_rmmap_locked(dev, map);
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_rmmap);
+
+/* The rmmap ioctl appears to be unnecessary. All mappings are torn down on
+ * the last close of the device, and this is necessary for cleanup when things
+ * exit uncleanly. Therefore, having userland manually remove mappings seems
+ * like a pointless exercise since they're going away anyway.
+ *
+ * One use case might be after addmap is allowed for normal users for SHM and
+ * gets used by drivers that the server doesn't need to care about. This seems
+ * unlikely.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a struct drm_map structure.
+ * \return zero on success or a negative value on error.
+ */
+int drm_rmmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_map *request = data;
+ struct drm_local_map *map = NULL;
+ struct drm_map_list *r_list;
+ int ret;
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ if (r_list->map &&
+ r_list->user_token == (unsigned long)request->handle &&
+ r_list->map->flags & _DRM_REMOVABLE) {
+ map = r_list->map;
+ break;
+ }
+ }
+
+ /* List has wrapped around to the head pointer, or its empty we didn't
+ * find anything.
+ */
+ if (list_empty(&dev->maplist) || !map) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ /* Register and framebuffer maps are permanent */
+ if ((map->type == _DRM_REGISTERS) || (map->type == _DRM_FRAME_BUFFER)) {
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+ }
+
+ ret = drm_rmmap_locked(dev, map);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+
+/**
+ * Cleanup after an error on one of the addbufs() functions.
+ *
+ * \param dev DRM device.
+ * \param entry buffer entry where the error occurred.
+ *
+ * Frees any pages and buffers associated with the given entry.
+ */
+static void drm_cleanup_buf_error(struct drm_device * dev,
+ struct drm_buf_entry * entry)
+{
+ int i;
+
+ if (entry->seg_count) {
+ for (i = 0; i < entry->seg_count; i++) {
+ if (entry->seglist[i]) {
+ drm_pci_free(dev, entry->seglist[i]);
+ }
+ }
+ kfree(entry->seglist);
+
+ entry->seg_count = 0;
+ }
+
+ if (entry->buf_count) {
+ for (i = 0; i < entry->buf_count; i++) {
+ kfree(entry->buflist[i].dev_private);
+ }
+ kfree(entry->buflist);
+
+ entry->buf_count = 0;
+ }
+}
+
+#if __OS_HAS_AGP
+/**
+ * Add AGP buffers for DMA transfers.
+ *
+ * \param dev struct drm_device to which the buffers are to be added.
+ * \param request pointer to a struct drm_buf_desc describing the request.
+ * \return zero on success or a negative number on failure.
+ *
+ * After some sanity checks creates a drm_buf structure for each buffer and
+ * reallocates the buffer list of the same size order to accommodate the new
+ * buffers.
+ */
+int drm_addbufs_agp(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_entry *entry;
+ struct drm_agp_mem *agp_entry;
+ struct drm_buf *buf;
+ unsigned long offset;
+ unsigned long agp_offset;
+ int count;
+ int order;
+ int size;
+ int alignment;
+ int page_order;
+ int total;
+ int byte_count;
+ int i, valid;
+ struct drm_buf **temp_buflist;
+
+ if (!dma)
+ return -EINVAL;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ byte_count = 0;
+ agp_offset = dev->agp->base + request->agp_start;
+
+ DRM_DEBUG("count: %d\n", count);
+ DRM_DEBUG("order: %d\n", order);
+ DRM_DEBUG("size: %d\n", size);
+ DRM_DEBUG("agp_offset: %lx\n", agp_offset);
+ DRM_DEBUG("alignment: %d\n", alignment);
+ DRM_DEBUG("page_order: %d\n", page_order);
+ DRM_DEBUG("total: %d\n", total);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+
+ /* Make sure buffers are located in AGP memory that we own */
+ valid = 0;
+ list_for_each_entry(agp_entry, &dev->agp->memory, head) {
+ if ((agp_offset >= agp_entry->bound) &&
+ (agp_offset + total * count <= agp_entry->bound + agp_entry->pages * PAGE_SIZE)) {
+ valid = 1;
+ break;
+ }
+ }
+ if (!list_empty(&dev->agp->memory) && !valid) {
+ DRM_DEBUG("zone invalid\n");
+ return -EINVAL;
+ }
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kzalloc(count * sizeof(*entry->buflist), GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+
+ offset = 0;
+
+ while (entry->buf_count < count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+
+ buf->offset = (dma->byte_count + offset);
+ buf->bus_address = agp_offset + offset;
+ buf->address = (void *)(agp_offset + offset);
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kzalloc(buf->dev_priv_size, GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address);
+
+ offset += alignment;
+ entry->buf_count++;
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ DRM_DEBUG("byte_count: %d\n", byte_count);
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
+ dma->byte_count += byte_count;
+
+ DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
+ DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ dma->flags = _DRM_DMA_USE_AGP;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+}
+EXPORT_SYMBOL(drm_addbufs_agp);
+#endif /* __OS_HAS_AGP */
+
+int drm_addbufs_pci(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int count;
+ int order;
+ int size;
+ int total;
+ int page_order;
+ struct drm_buf_entry *entry;
+ drm_dma_handle_t *dmah;
+ struct drm_buf *buf;
+ int alignment;
+ unsigned long offset;
+ int i;
+ int byte_count;
+ int page_count;
+ unsigned long *temp_pagelist;
+ struct drm_buf **temp_buflist;
+
+ if (!drm_core_check_feature(dev, DRIVER_PCI_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ DRM_DEBUG("count=%d, size=%d (%d), order=%d\n",
+ request->count, request->size, size, order);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kzalloc(count * sizeof(*entry->buflist), GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ entry->seglist = kzalloc(count * sizeof(*entry->seglist), GFP_KERNEL);
+ if (!entry->seglist) {
+ kfree(entry->buflist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ /* Keep the original pagelist until we know all the allocations
+ * have succeeded
+ */
+ temp_pagelist = kmalloc((dma->page_count + (count << page_order)) *
+ sizeof(*dma->pagelist), GFP_KERNEL);
+ if (!temp_pagelist) {
+ kfree(entry->buflist);
+ kfree(entry->seglist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ memcpy(temp_pagelist,
+ dma->pagelist, dma->page_count * sizeof(*dma->pagelist));
+ DRM_DEBUG("pagelist: %d entries\n",
+ dma->page_count + (count << page_order));
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+ byte_count = 0;
+ page_count = 0;
+
+ while (entry->buf_count < count) {
+
+ dmah = drm_pci_alloc(dev, PAGE_SIZE << page_order, 0x1000);
+
+ if (!dmah) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ entry->seg_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ kfree(temp_pagelist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ entry->seglist[entry->seg_count++] = dmah;
+ for (i = 0; i < (1 << page_order); i++) {
+ DRM_DEBUG("page %d @ 0x%08lx\n",
+ dma->page_count + page_count,
+ (unsigned long)dmah->vaddr + PAGE_SIZE * i);
+ temp_pagelist[dma->page_count + page_count++]
+ = (unsigned long)dmah->vaddr + PAGE_SIZE * i;
+ }
+ for (offset = 0;
+ offset + size <= total && entry->buf_count < count;
+ offset += alignment, ++entry->buf_count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+ buf->offset = (dma->byte_count + byte_count + offset);
+ buf->address = (void *)(dmah->vaddr + offset);
+ buf->bus_address = dmah->busaddr + offset;
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kzalloc(buf->dev_priv_size,
+ GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ entry->seg_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ kfree(temp_pagelist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ DRM_DEBUG("buffer %d @ %p\n",
+ entry->buf_count, buf->address);
+ }
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ kfree(temp_pagelist);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ /* No allocations failed, so now we can replace the original pagelist
+ * with the new one.
+ */
+ if (dma->page_count) {
+ kfree(dma->pagelist);
+ }
+ dma->pagelist = temp_pagelist;
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += entry->seg_count << page_order;
+ dma->byte_count += PAGE_SIZE * (entry->seg_count << page_order);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ if (request->flags & _DRM_PCI_BUFFER_RO)
+ dma->flags = _DRM_DMA_USE_PCI_RO;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+
+}
+EXPORT_SYMBOL(drm_addbufs_pci);
+
+static int drm_addbufs_sg(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_entry *entry;
+ struct drm_buf *buf;
+ unsigned long offset;
+ unsigned long agp_offset;
+ int count;
+ int order;
+ int size;
+ int alignment;
+ int page_order;
+ int total;
+ int byte_count;
+ int i;
+ struct drm_buf **temp_buflist;
+
+ if (!drm_core_check_feature(dev, DRIVER_SG))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ byte_count = 0;
+ agp_offset = request->agp_start;
+
+ DRM_DEBUG("count: %d\n", count);
+ DRM_DEBUG("order: %d\n", order);
+ DRM_DEBUG("size: %d\n", size);
+ DRM_DEBUG("agp_offset: %lu\n", agp_offset);
+ DRM_DEBUG("alignment: %d\n", alignment);
+ DRM_DEBUG("page_order: %d\n", page_order);
+ DRM_DEBUG("total: %d\n", total);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kzalloc(count * sizeof(*entry->buflist),
+ GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+
+ offset = 0;
+
+ while (entry->buf_count < count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+
+ buf->offset = (dma->byte_count + offset);
+ buf->bus_address = agp_offset + offset;
+ buf->address = (void *)(agp_offset + offset
+ + (unsigned long)dev->sg->virtual);
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kzalloc(buf->dev_priv_size, GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address);
+
+ offset += alignment;
+ entry->buf_count++;
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ DRM_DEBUG("byte_count: %d\n", byte_count);
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
+ dma->byte_count += byte_count;
+
+ DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
+ DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ dma->flags = _DRM_DMA_USE_SG;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+}
+
+static int drm_addbufs_fb(struct drm_device * dev, struct drm_buf_desc * request)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_entry *entry;
+ struct drm_buf *buf;
+ unsigned long offset;
+ unsigned long agp_offset;
+ int count;
+ int order;
+ int size;
+ int alignment;
+ int page_order;
+ int total;
+ int byte_count;
+ int i;
+ struct drm_buf **temp_buflist;
+
+ if (!drm_core_check_feature(dev, DRIVER_FB_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ count = request->count;
+ order = drm_order(request->size);
+ size = 1 << order;
+
+ alignment = (request->flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ byte_count = 0;
+ agp_offset = request->agp_start;
+
+ DRM_DEBUG("count: %d\n", count);
+ DRM_DEBUG("order: %d\n", order);
+ DRM_DEBUG("size: %d\n", size);
+ DRM_DEBUG("agp_offset: %lu\n", agp_offset);
+ DRM_DEBUG("alignment: %d\n", alignment);
+ DRM_DEBUG("page_order: %d\n", page_order);
+ DRM_DEBUG("total: %d\n", total);
+
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+
+ spin_lock(&dev->count_lock);
+ if (dev->buf_use) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ atomic_inc(&dev->buf_alloc);
+ spin_unlock(&dev->count_lock);
+
+ mutex_lock(&dev->struct_mutex);
+ entry = &dma->bufs[order];
+ if (entry->buf_count) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM; /* May only call once for each order */
+ }
+
+ if (count < 0 || count > 4096) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -EINVAL;
+ }
+
+ entry->buflist = kzalloc(count * sizeof(*entry->buflist),
+ GFP_KERNEL);
+ if (!entry->buflist) {
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ entry->buf_size = size;
+ entry->page_order = page_order;
+
+ offset = 0;
+
+ while (entry->buf_count < count) {
+ buf = &entry->buflist[entry->buf_count];
+ buf->idx = dma->buf_count + entry->buf_count;
+ buf->total = alignment;
+ buf->order = order;
+ buf->used = 0;
+
+ buf->offset = (dma->byte_count + offset);
+ buf->bus_address = agp_offset + offset;
+ buf->address = (void *)(agp_offset + offset);
+ buf->next = NULL;
+ buf->waiting = 0;
+ buf->pending = 0;
+ buf->file_priv = NULL;
+
+ buf->dev_priv_size = dev->driver->dev_priv_size;
+ buf->dev_private = kzalloc(buf->dev_priv_size, GFP_KERNEL);
+ if (!buf->dev_private) {
+ /* Set count correctly so we free the proper amount. */
+ entry->buf_count = count;
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+
+ DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address);
+
+ offset += alignment;
+ entry->buf_count++;
+ byte_count += PAGE_SIZE << page_order;
+ }
+
+ DRM_DEBUG("byte_count: %d\n", byte_count);
+
+ temp_buflist = krealloc(dma->buflist,
+ (dma->buf_count + entry->buf_count) *
+ sizeof(*dma->buflist), GFP_KERNEL);
+ if (!temp_buflist) {
+ /* Free the entry because it isn't valid */
+ drm_cleanup_buf_error(dev, entry);
+ mutex_unlock(&dev->struct_mutex);
+ atomic_dec(&dev->buf_alloc);
+ return -ENOMEM;
+ }
+ dma->buflist = temp_buflist;
+
+ for (i = 0; i < entry->buf_count; i++) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
+ dma->byte_count += byte_count;
+
+ DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
+ DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ request->count = entry->buf_count;
+ request->size = size;
+
+ dma->flags = _DRM_DMA_USE_FB;
+
+ atomic_dec(&dev->buf_alloc);
+ return 0;
+}
+
+
+/**
+ * Add buffers for DMA transfers (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a struct drm_buf_desc request.
+ * \return zero on success or a negative number on failure.
+ *
+ * According with the memory type specified in drm_buf_desc::flags and the
+ * build options, it dispatches the call either to addbufs_agp(),
+ * addbufs_sg() or addbufs_pci() for AGP, scatter-gather or consistent
+ * PCI memory respectively.
+ */
+int drm_addbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_buf_desc *request = data;
+ int ret;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+#if __OS_HAS_AGP
+ if (request->flags & _DRM_AGP_BUFFER)
+ ret = drm_addbufs_agp(dev, request);
+ else
+#endif
+ if (request->flags & _DRM_SG_BUFFER)
+ ret = drm_addbufs_sg(dev, request);
+ else if (request->flags & _DRM_FB_BUFFER)
+ ret = drm_addbufs_fb(dev, request);
+ else
+ ret = drm_addbufs_pci(dev, request);
+
+ return ret;
+}
+
+/**
+ * Get information about the buffer mappings.
+ *
+ * This was originally mean for debugging purposes, or by a sophisticated
+ * client library to determine how best to use the available buffers (e.g.,
+ * large buffers can be used for image transfer).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_buf_info structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Increments drm_device::buf_use while holding the drm_device::count_lock
+ * lock, preventing of allocating more buffers after this call. Information
+ * about each requested buffer is then copied into user space.
+ */
+int drm_infobufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_info *request = data;
+ int i;
+ int count;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ spin_lock(&dev->count_lock);
+ if (atomic_read(&dev->buf_alloc)) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ ++dev->buf_use; /* Can't allocate more after this call */
+ spin_unlock(&dev->count_lock);
+
+ for (i = 0, count = 0; i < DRM_MAX_ORDER + 1; i++) {
+ if (dma->bufs[i].buf_count)
+ ++count;
+ }
+
+ DRM_DEBUG("count = %d\n", count);
+
+ if (request->count >= count) {
+ for (i = 0, count = 0; i < DRM_MAX_ORDER + 1; i++) {
+ if (dma->bufs[i].buf_count) {
+ struct drm_buf_desc __user *to =
+ &request->list[count];
+ struct drm_buf_entry *from = &dma->bufs[i];
+ struct drm_freelist *list = &dma->bufs[i].freelist;
+ if (copy_to_user(&to->count,
+ &from->buf_count,
+ sizeof(from->buf_count)) ||
+ copy_to_user(&to->size,
+ &from->buf_size,
+ sizeof(from->buf_size)) ||
+ copy_to_user(&to->low_mark,
+ &list->low_mark,
+ sizeof(list->low_mark)) ||
+ copy_to_user(&to->high_mark,
+ &list->high_mark,
+ sizeof(list->high_mark)))
+ return -EFAULT;
+
+ DRM_DEBUG("%d %d %d %d %d\n",
+ i,
+ dma->bufs[i].buf_count,
+ dma->bufs[i].buf_size,
+ dma->bufs[i].freelist.low_mark,
+ dma->bufs[i].freelist.high_mark);
+ ++count;
+ }
+ }
+ }
+ request->count = count;
+
+ return 0;
+}
+
+/**
+ * Specifies a low and high water mark for buffer allocation
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg a pointer to a drm_buf_desc structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies that the size order is bounded between the admissible orders and
+ * updates the respective drm_device_dma::bufs entry low and high water mark.
+ *
+ * \note This ioctl is deprecated and mostly never used.
+ */
+int drm_markbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_desc *request = data;
+ int order;
+ struct drm_buf_entry *entry;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ DRM_DEBUG("%d, %d, %d\n",
+ request->size, request->low_mark, request->high_mark);
+ order = drm_order(request->size);
+ if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
+ return -EINVAL;
+ entry = &dma->bufs[order];
+
+ if (request->low_mark < 0 || request->low_mark > entry->buf_count)
+ return -EINVAL;
+ if (request->high_mark < 0 || request->high_mark > entry->buf_count)
+ return -EINVAL;
+
+ entry->freelist.low_mark = request->low_mark;
+ entry->freelist.high_mark = request->high_mark;
+
+ return 0;
+}
+
+/**
+ * Unreserve the buffers in list, previously reserved using drmDMA.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_buf_free structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls free_buffer() for each used buffer.
+ * This function is primarily used for debugging.
+ */
+int drm_freebufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ struct drm_buf_free *request = data;
+ int i;
+ int idx;
+ struct drm_buf *buf;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ DRM_DEBUG("%d\n", request->count);
+ for (i = 0; i < request->count; i++) {
+ if (copy_from_user(&idx, &request->list[i], sizeof(idx)))
+ return -EFAULT;
+ if (idx < 0 || idx >= dma->buf_count) {
+ DRM_ERROR("Index %d (of %d max)\n",
+ idx, dma->buf_count - 1);
+ return -EINVAL;
+ }
+ buf = dma->buflist[idx];
+ if (buf->file_priv != file_priv) {
+ DRM_ERROR("Process %d freeing buffer not owned\n",
+ task_pid_nr(current));
+ return -EINVAL;
+ }
+ drm_free_buffer(dev, buf);
+ }
+
+ return 0;
+}
+
+/**
+ * Maps all of the DMA buffers into client-virtual space (ioctl).
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_buf_map structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Maps the AGP, SG or PCI buffer region with vm_mmap(), and copies information
+ * about each buffer into user space. For PCI buffers, it calls vm_mmap() with
+ * offset equal to 0, which drm_mmap() interpretes as PCI buffers and calls
+ * drm_mmap_dma().
+ */
+int drm_mapbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int retcode = 0;
+ const int zero = 0;
+ unsigned long virtual;
+ unsigned long address;
+ struct drm_buf_map *request = data;
+ int i;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ if (!dma)
+ return -EINVAL;
+
+ spin_lock(&dev->count_lock);
+ if (atomic_read(&dev->buf_alloc)) {
+ spin_unlock(&dev->count_lock);
+ return -EBUSY;
+ }
+ dev->buf_use++; /* Can't allocate more after this call */
+ spin_unlock(&dev->count_lock);
+
+ if (request->count >= dma->buf_count) {
+ if ((drm_core_has_AGP(dev) && (dma->flags & _DRM_DMA_USE_AGP))
+ || (drm_core_check_feature(dev, DRIVER_SG)
+ && (dma->flags & _DRM_DMA_USE_SG))
+ || (drm_core_check_feature(dev, DRIVER_FB_DMA)
+ && (dma->flags & _DRM_DMA_USE_FB))) {
+ struct drm_local_map *map = dev->agp_buffer_map;
+ unsigned long token = dev->agp_buffer_token;
+
+ if (!map) {
+ retcode = -EINVAL;
+ goto done;
+ }
+ virtual = vm_mmap(file_priv->filp, 0, map->size,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED,
+ token);
+ } else {
+ virtual = vm_mmap(file_priv->filp, 0, dma->byte_count,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED, 0);
+ }
+ if (virtual > -1024UL) {
+ /* Real error */
+ retcode = (signed long)virtual;
+ goto done;
+ }
+ request->virtual = (void __user *)virtual;
+
+ for (i = 0; i < dma->buf_count; i++) {
+ if (copy_to_user(&request->list[i].idx,
+ &dma->buflist[i]->idx,
+ sizeof(request->list[0].idx))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ if (copy_to_user(&request->list[i].total,
+ &dma->buflist[i]->total,
+ sizeof(request->list[0].total))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ if (copy_to_user(&request->list[i].used,
+ &zero, sizeof(zero))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ address = virtual + dma->buflist[i]->offset; /* *** */
+ if (copy_to_user(&request->list[i].address,
+ &address, sizeof(address))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ }
+ }
+ done:
+ request->count = dma->buf_count;
+ DRM_DEBUG("%d buffers, retcode = %d\n", request->count, retcode);
+
+ return retcode;
+}
+
+/**
+ * Compute size order. Returns the exponent of the smaller power of two which
+ * is greater or equal to given number.
+ *
+ * \param size size.
+ * \return order.
+ *
+ * \todo Can be made faster.
+ */
+int drm_order(unsigned long size)
+{
+ int order;
+ unsigned long tmp;
+
+ for (order = 0, tmp = size >> 1; tmp; tmp >>= 1, order++) ;
+
+ if (size & (size - 1))
+ ++order;
+
+ return order;
+}
+EXPORT_SYMBOL(drm_order);
diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c
new file mode 100644
index 0000000..08758e0
--- /dev/null
+++ b/drivers/gpu/drm/drm_cache.c
@@ -0,0 +1,123 @@
+/**************************************************************************
+ *
+ * Copyright (c) 2006-2007 Tungsten Graphics, Inc., Cedar Park, TX., USA
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include <linux/export.h>
+#include "drmP.h"
+
+#if defined(CONFIG_X86)
+static void
+drm_clflush_page(struct page *page)
+{
+ uint8_t *page_virtual;
+ unsigned int i;
+
+ if (unlikely(page == NULL))
+ return;
+
+ page_virtual = kmap_atomic(page);
+ for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
+ clflush(page_virtual + i);
+ kunmap_atomic(page_virtual);
+}
+
+static void drm_cache_flush_clflush(struct page *pages[],
+ unsigned long num_pages)
+{
+ unsigned long i;
+
+ mb();
+ for (i = 0; i < num_pages; i++)
+ drm_clflush_page(*pages++);
+ mb();
+}
+
+static void
+drm_clflush_ipi_handler(void *null)
+{
+ wbinvd();
+}
+#endif
+
+void
+drm_clflush_pages(struct page *pages[], unsigned long num_pages)
+{
+
+#if defined(CONFIG_X86)
+ if (cpu_has_clflush) {
+ drm_cache_flush_clflush(pages, num_pages);
+ return;
+ }
+
+ if (on_each_cpu(drm_clflush_ipi_handler, NULL, 1) != 0)
+ printk(KERN_ERR "Timed out waiting for cache flush.\n");
+
+#elif defined(__powerpc__)
+ unsigned long i;
+ for (i = 0; i < num_pages; i++) {
+ struct page *page = pages[i];
+ void *page_virtual;
+
+ if (unlikely(page == NULL))
+ continue;
+
+ page_virtual = kmap_atomic(page);
+ flush_dcache_range((unsigned long)page_virtual,
+ (unsigned long)page_virtual + PAGE_SIZE);
+ kunmap_atomic(page_virtual);
+ }
+#else
+ printk(KERN_ERR "Architecture has no drm_cache.c support\n");
+ WARN_ON_ONCE(1);
+#endif
+}
+EXPORT_SYMBOL(drm_clflush_pages);
+
+void
+drm_clflush_virt_range(char *addr, unsigned long length)
+{
+#if defined(CONFIG_X86)
+ if (cpu_has_clflush) {
+ char *end = addr + length;
+ mb();
+ for (; addr < end; addr += boot_cpu_data.x86_clflush_size)
+ clflush(addr);
+ clflush(end - 1);
+ mb();
+ return;
+ }
+
+ if (on_each_cpu(drm_clflush_ipi_handler, NULL, 1) != 0)
+ printk(KERN_ERR "Timed out waiting for cache flush.\n");
+#else
+ printk(KERN_ERR "Architecture has no drm_cache.c support\n");
+ WARN_ON_ONCE(1);
+#endif
+}
+EXPORT_SYMBOL(drm_clflush_virt_range);
diff --git a/drivers/gpu/drm/drm_context.c b/drivers/gpu/drm/drm_context.c
new file mode 100644
index 0000000..affa629
--- /dev/null
+++ b/drivers/gpu/drm/drm_context.c
@@ -0,0 +1,463 @@
+/**
+ * \file drm_context.c
+ * IOCTLs for generic contexts
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Nov 24 18:31:37 2000 by gareth@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * ChangeLog:
+ * 2001-11-16 Torsten Duwe <duwe@caldera.de>
+ * added context constructor/destructor hooks,
+ * needed by SiS driver's memory management.
+ */
+
+#include "drmP.h"
+
+/******************************************************************/
+/** \name Context bitmap support */
+/*@{*/
+
+/**
+ * Free a handle from the context bitmap.
+ *
+ * \param dev DRM device.
+ * \param ctx_handle context handle.
+ *
+ * Clears the bit specified by \p ctx_handle in drm_device::ctx_bitmap and the entry
+ * in drm_device::ctx_idr, while holding the drm_device::struct_mutex
+ * lock.
+ */
+void drm_ctxbitmap_free(struct drm_device * dev, int ctx_handle)
+{
+ mutex_lock(&dev->struct_mutex);
+ idr_remove(&dev->ctx_idr, ctx_handle);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/**
+ * Context bitmap allocation.
+ *
+ * \param dev DRM device.
+ * \return (non-negative) context handle on success or a negative number on failure.
+ *
+ * Allocate a new idr from drm_device::ctx_idr while holding the
+ * drm_device::struct_mutex lock.
+ */
+static int drm_ctxbitmap_next(struct drm_device * dev)
+{
+ int new_id;
+ int ret;
+
+again:
+ if (idr_pre_get(&dev->ctx_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Out of memory expanding drawable idr\n");
+ return -ENOMEM;
+ }
+ mutex_lock(&dev->struct_mutex);
+ ret = idr_get_new_above(&dev->ctx_idr, NULL,
+ DRM_RESERVED_CONTEXTS, &new_id);
+ mutex_unlock(&dev->struct_mutex);
+ if (ret == -EAGAIN)
+ goto again;
+ else if (ret)
+ return ret;
+
+ return new_id;
+}
+
+/**
+ * Context bitmap initialization.
+ *
+ * \param dev DRM device.
+ *
+ * Initialise the drm_device::ctx_idr
+ */
+int drm_ctxbitmap_init(struct drm_device * dev)
+{
+ idr_init(&dev->ctx_idr);
+ return 0;
+}
+
+/**
+ * Context bitmap cleanup.
+ *
+ * \param dev DRM device.
+ *
+ * Free all idr members using drm_ctx_sarea_free helper function
+ * while holding the drm_device::struct_mutex lock.
+ */
+void drm_ctxbitmap_cleanup(struct drm_device * dev)
+{
+ mutex_lock(&dev->struct_mutex);
+ idr_remove_all(&dev->ctx_idr);
+ mutex_unlock(&dev->struct_mutex);
+}
+
+/*@}*/
+
+/******************************************************************/
+/** \name Per Context SAREA Support */
+/*@{*/
+
+/**
+ * Get per-context SAREA.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx_priv_map structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Gets the map from drm_device::ctx_idr with the handle specified and
+ * returns its handle.
+ */
+int drm_getsareactx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_priv_map *request = data;
+ struct drm_local_map *map;
+ struct drm_map_list *_entry;
+
+ mutex_lock(&dev->struct_mutex);
+
+ map = idr_find(&dev->ctx_idr, request->ctx_id);
+ if (!map) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ request->handle = NULL;
+ list_for_each_entry(_entry, &dev->maplist, head) {
+ if (_entry->map == map) {
+ request->handle =
+ (void *)(unsigned long)_entry->user_token;
+ break;
+ }
+ }
+
+ mutex_unlock(&dev->struct_mutex);
+
+ if (request->handle == NULL)
+ return -EINVAL;
+
+ return 0;
+}
+
+/**
+ * Set per-context SAREA.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx_priv_map structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches the mapping specified in \p arg and update the entry in
+ * drm_device::ctx_idr with it.
+ */
+int drm_setsareactx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_priv_map *request = data;
+ struct drm_local_map *map = NULL;
+ struct drm_map_list *r_list = NULL;
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ if (r_list->map
+ && r_list->user_token == (unsigned long) request->handle)
+ goto found;
+ }
+ bad:
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+
+ found:
+ map = r_list->map;
+ if (!map)
+ goto bad;
+
+ if (IS_ERR(idr_replace(&dev->ctx_idr, map, request->ctx_id)))
+ goto bad;
+
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/*@}*/
+
+/******************************************************************/
+/** \name The actual DRM context handling routines */
+/*@{*/
+
+/**
+ * Switch context.
+ *
+ * \param dev DRM device.
+ * \param old old context handle.
+ * \param new new context handle.
+ * \return zero on success or a negative number on failure.
+ *
+ * Attempt to set drm_device::context_flag.
+ */
+static int drm_context_switch(struct drm_device * dev, int old, int new)
+{
+ if (test_and_set_bit(0, &dev->context_flag)) {
+ DRM_ERROR("Reentering -- FIXME\n");
+ return -EBUSY;
+ }
+
+ DRM_DEBUG("Context switch from %d to %d\n", old, new);
+
+ if (new == dev->last_context) {
+ clear_bit(0, &dev->context_flag);
+ return 0;
+ }
+
+ return 0;
+}
+
+/**
+ * Complete context switch.
+ *
+ * \param dev DRM device.
+ * \param new new context handle.
+ * \return zero on success or a negative number on failure.
+ *
+ * Updates drm_device::last_context and drm_device::last_switch. Verifies the
+ * hardware lock is held, clears the drm_device::context_flag and wakes up
+ * drm_device::context_wait.
+ */
+static int drm_context_switch_complete(struct drm_device *dev,
+ struct drm_file *file_priv, int new)
+{
+ dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
+ dev->last_switch = jiffies;
+
+ if (!_DRM_LOCK_IS_HELD(file_priv->master->lock.hw_lock->lock)) {
+ DRM_ERROR("Lock isn't held after context switch\n");
+ }
+
+ /* If a context switch is ever initiated
+ when the kernel holds the lock, release
+ that lock here. */
+ clear_bit(0, &dev->context_flag);
+ wake_up(&dev->context_wait);
+
+ return 0;
+}
+
+/**
+ * Reserve contexts.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx_res structure.
+ * \return zero on success or a negative number on failure.
+ */
+int drm_resctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_res *res = data;
+ struct drm_ctx ctx;
+ int i;
+
+ if (res->count >= DRM_RESERVED_CONTEXTS) {
+ memset(&ctx, 0, sizeof(ctx));
+ for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
+ ctx.handle = i;
+ if (copy_to_user(&res->contexts[i], &ctx, sizeof(ctx)))
+ return -EFAULT;
+ }
+ }
+ res->count = DRM_RESERVED_CONTEXTS;
+
+ return 0;
+}
+
+/**
+ * Add context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Get a new handle for the context and copy to userspace.
+ */
+int drm_addctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx_list *ctx_entry;
+ struct drm_ctx *ctx = data;
+
+ ctx->handle = drm_ctxbitmap_next(dev);
+ if (ctx->handle == DRM_KERNEL_CONTEXT) {
+ /* Skip kernel's context and get a new one. */
+ ctx->handle = drm_ctxbitmap_next(dev);
+ }
+ DRM_DEBUG("%d\n", ctx->handle);
+ if (ctx->handle == -1) {
+ DRM_DEBUG("Not enough free contexts.\n");
+ /* Should this return -EBUSY instead? */
+ return -ENOMEM;
+ }
+
+ ctx_entry = kmalloc(sizeof(*ctx_entry), GFP_KERNEL);
+ if (!ctx_entry) {
+ DRM_DEBUG("out of memory\n");
+ return -ENOMEM;
+ }
+
+ INIT_LIST_HEAD(&ctx_entry->head);
+ ctx_entry->handle = ctx->handle;
+ ctx_entry->tag = file_priv;
+
+ mutex_lock(&dev->ctxlist_mutex);
+ list_add(&ctx_entry->head, &dev->ctxlist);
+ ++dev->ctx_count;
+ mutex_unlock(&dev->ctxlist_mutex);
+
+ return 0;
+}
+
+int drm_modctx(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ /* This does nothing */
+ return 0;
+}
+
+/**
+ * Get context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ */
+int drm_getctx(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ /* This is 0, because we don't handle any context flags */
+ ctx->flags = 0;
+
+ return 0;
+}
+
+/**
+ * Switch context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls context_switch().
+ */
+int drm_switchctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ DRM_DEBUG("%d\n", ctx->handle);
+ return drm_context_switch(dev, dev->last_context, ctx->handle);
+}
+
+/**
+ * New context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls context_switch_complete().
+ */
+int drm_newctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ DRM_DEBUG("%d\n", ctx->handle);
+ drm_context_switch_complete(dev, file_priv, ctx->handle);
+
+ return 0;
+}
+
+/**
+ * Remove context.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument pointing to a drm_ctx structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * If not the special kernel context, calls ctxbitmap_free() to free the specified context.
+ */
+int drm_rmctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_ctx *ctx = data;
+
+ DRM_DEBUG("%d\n", ctx->handle);
+ if (ctx->handle != DRM_KERNEL_CONTEXT) {
+ if (dev->driver->context_dtor)
+ dev->driver->context_dtor(dev, ctx->handle);
+ drm_ctxbitmap_free(dev, ctx->handle);
+ }
+
+ mutex_lock(&dev->ctxlist_mutex);
+ if (!list_empty(&dev->ctxlist)) {
+ struct drm_ctx_list *pos, *n;
+
+ list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {
+ if (pos->handle == ctx->handle) {
+ list_del(&pos->head);
+ kfree(pos);
+ --dev->ctx_count;
+ }
+ }
+ }
+ mutex_unlock(&dev->ctxlist_mutex);
+
+ return 0;
+}
+
+/*@}*/
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
new file mode 100644
index 0000000..af81f77
--- /dev/null
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -0,0 +1,3831 @@
+/*
+ * Copyright (c) 2006-2008 Intel Corporation
+ * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
+ * Copyright (c) 2008 Red Hat Inc.
+ *
+ * DRM core CRTC related functions
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ *
+ * Authors:
+ * Keith Packard
+ * Eric Anholt <eric@anholt.net>
+ * Dave Airlie <airlied@linux.ie>
+ * Jesse Barnes <jesse.barnes@intel.com>
+ */
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+#include "drm.h"
+#include "drmP.h"
+#include "drm_crtc.h"
+#include "drm_edid.h"
+#include "drm_fourcc.h"
+
+/* Avoid boilerplate. I'm tired of typing. */
+#define DRM_ENUM_NAME_FN(fnname, list) \
+ char *fnname(int val) \
+ { \
+ int i; \
+ for (i = 0; i < ARRAY_SIZE(list); i++) { \
+ if (list[i].type == val) \
+ return list[i].name; \
+ } \
+ return "(unknown)"; \
+ }
+
+/*
+ * Global properties
+ */
+static struct drm_prop_enum_list drm_dpms_enum_list[] =
+{ { DRM_MODE_DPMS_ON, "On" },
+ { DRM_MODE_DPMS_STANDBY, "Standby" },
+ { DRM_MODE_DPMS_SUSPEND, "Suspend" },
+ { DRM_MODE_DPMS_OFF, "Off" }
+};
+
+DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
+
+/*
+ * Optional properties
+ */
+static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
+{
+ { DRM_MODE_SCALE_NONE, "None" },
+ { DRM_MODE_SCALE_FULLSCREEN, "Full" },
+ { DRM_MODE_SCALE_CENTER, "Center" },
+ { DRM_MODE_SCALE_ASPECT, "Full aspect" },
+};
+
+static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
+{
+ { DRM_MODE_DITHERING_OFF, "Off" },
+ { DRM_MODE_DITHERING_ON, "On" },
+ { DRM_MODE_DITHERING_AUTO, "Automatic" },
+};
+
+/*
+ * Non-global properties, but "required" for certain connectors.
+ */
+static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
+ { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
+};
+
+DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
+
+static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
+ { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
+};
+
+DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
+ drm_dvi_i_subconnector_enum_list)
+
+static struct drm_prop_enum_list drm_tv_select_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
+};
+
+DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
+
+static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
+{
+ { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
+ { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
+ { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
+};
+
+DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
+ drm_tv_subconnector_enum_list)
+
+static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
+ { DRM_MODE_DIRTY_OFF, "Off" },
+ { DRM_MODE_DIRTY_ON, "On" },
+ { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
+};
+
+DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
+ drm_dirty_info_enum_list)
+
+struct drm_conn_prop_enum_list {
+ int type;
+ char *name;
+ int count;
+};
+
+/*
+ * Connector and encoder types.
+ */
+static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
+{ { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
+ { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
+ { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
+ { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
+ { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
+ { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
+ { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
+ { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
+ { DRM_MODE_CONNECTOR_Component, "Component", 0 },
+ { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
+ { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
+ { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
+ { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
+ { DRM_MODE_CONNECTOR_TV, "TV", 0 },
+ { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
+ { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
+};
+
+static struct drm_prop_enum_list drm_encoder_enum_list[] =
+{ { DRM_MODE_ENCODER_NONE, "None" },
+ { DRM_MODE_ENCODER_DAC, "DAC" },
+ { DRM_MODE_ENCODER_TMDS, "TMDS" },
+ { DRM_MODE_ENCODER_LVDS, "LVDS" },
+ { DRM_MODE_ENCODER_TVDAC, "TV" },
+ { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
+};
+
+char *drm_get_encoder_name(struct drm_encoder *encoder)
+{
+ static char buf[32];
+
+ snprintf(buf, 32, "%s-%d",
+ drm_encoder_enum_list[encoder->encoder_type].name,
+ encoder->base.id);
+ return buf;
+}
+EXPORT_SYMBOL(drm_get_encoder_name);
+
+char *drm_get_connector_name(struct drm_connector *connector)
+{
+ static char buf[32];
+
+ snprintf(buf, 32, "%s-%d",
+ drm_connector_enum_list[connector->connector_type].name,
+ connector->connector_type_id);
+ return buf;
+}
+EXPORT_SYMBOL(drm_get_connector_name);
+
+char *drm_get_connector_status_name(enum drm_connector_status status)
+{
+ if (status == connector_status_connected)
+ return "connected";
+ else if (status == connector_status_disconnected)
+ return "disconnected";
+ else
+ return "unknown";
+}
+
+/**
+ * drm_mode_object_get - allocate a new identifier
+ * @dev: DRM device
+ * @ptr: object pointer, used to generate unique ID
+ * @type: object type
+ *
+ * LOCKING:
+ *
+ * Create a unique identifier based on @ptr in @dev's identifier space. Used
+ * for tracking modes, CRTCs and connectors.
+ *
+ * RETURNS:
+ * New unique (relative to other objects in @dev) integer identifier for the
+ * object.
+ */
+static int drm_mode_object_get(struct drm_device *dev,
+ struct drm_mode_object *obj, uint32_t obj_type)
+{
+ int new_id = 0;
+ int ret;
+
+again:
+ if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Ran out memory getting a mode number\n");
+ return -ENOMEM;
+ }
+
+ mutex_lock(&dev->mode_config.idr_mutex);
+ ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
+ mutex_unlock(&dev->mode_config.idr_mutex);
+ if (ret == -EAGAIN)
+ goto again;
+ else if (ret)
+ return ret;
+
+ obj->id = new_id;
+ obj->type = obj_type;
+ return 0;
+}
+
+/**
+ * drm_mode_object_put - free an identifer
+ * @dev: DRM device
+ * @id: ID to free
+ *
+ * LOCKING:
+ * Caller must hold DRM mode_config lock.
+ *
+ * Free @id from @dev's unique identifier pool.
+ */
+static void drm_mode_object_put(struct drm_device *dev,
+ struct drm_mode_object *object)
+{
+ mutex_lock(&dev->mode_config.idr_mutex);
+ idr_remove(&dev->mode_config.crtc_idr, object->id);
+ mutex_unlock(&dev->mode_config.idr_mutex);
+}
+
+struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
+ uint32_t id, uint32_t type)
+{
+ struct drm_mode_object *obj = NULL;
+
+ mutex_lock(&dev->mode_config.idr_mutex);
+ obj = idr_find(&dev->mode_config.crtc_idr, id);
+ if (!obj || (obj->type != type) || (obj->id != id))
+ obj = NULL;
+ mutex_unlock(&dev->mode_config.idr_mutex);
+
+ return obj;
+}
+EXPORT_SYMBOL(drm_mode_object_find);
+
+/**
+ * drm_framebuffer_init - initialize a framebuffer
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Allocates an ID for the framebuffer's parent mode object, sets its mode
+ * functions & device file and adds it to the master fd list.
+ *
+ * RETURNS:
+ * Zero on success, error code on failure.
+ */
+int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
+ const struct drm_framebuffer_funcs *funcs)
+{
+ int ret;
+
+ ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
+ if (ret)
+ return ret;
+
+ fb->dev = dev;
+ fb->funcs = funcs;
+ dev->mode_config.num_fb++;
+ list_add(&fb->head, &dev->mode_config.fb_list);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_framebuffer_init);
+
+/**
+ * drm_framebuffer_cleanup - remove a framebuffer object
+ * @fb: framebuffer to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
+ * it, setting it to NULL.
+ */
+void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
+{
+ struct drm_device *dev = fb->dev;
+ struct drm_crtc *crtc;
+ struct drm_plane *plane;
+ struct drm_mode_set set;
+ int ret;
+
+ /* remove from any CRTC */
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ if (crtc->fb == fb) {
+ /* should turn off the crtc */
+ memset(&set, 0, sizeof(struct drm_mode_set));
+ set.crtc = crtc;
+ set.fb = NULL;
+ ret = crtc->funcs->set_config(&set);
+ if (ret)
+ DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
+ }
+ }
+
+ list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
+ if (plane->fb == fb) {
+ /* should turn off the crtc */
+ ret = plane->funcs->disable_plane(plane);
+ if (ret)
+ DRM_ERROR("failed to disable plane with busy fb\n");
+ /* disconnect the plane from the fb and crtc: */
+ plane->fb = NULL;
+ plane->crtc = NULL;
+ }
+ }
+
+ drm_mode_object_put(dev, &fb->base);
+ list_del(&fb->head);
+ dev->mode_config.num_fb--;
+}
+EXPORT_SYMBOL(drm_framebuffer_cleanup);
+
+/**
+ * drm_crtc_init - Initialise a new CRTC object
+ * @dev: DRM device
+ * @crtc: CRTC object to init
+ * @funcs: callbacks for the new CRTC
+ *
+ * LOCKING:
+ * Takes mode_config lock.
+ *
+ * Inits a new object created as base part of an driver crtc object.
+ *
+ * RETURNS:
+ * Zero on success, error code on failure.
+ */
+int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
+ const struct drm_crtc_funcs *funcs)
+{
+ int ret;
+
+ crtc->dev = dev;
+ crtc->funcs = funcs;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
+ if (ret)
+ goto out;
+
+ crtc->base.properties = &crtc->properties;
+
+ list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
+ dev->mode_config.num_crtc++;
+
+ out:
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_crtc_init);
+
+/**
+ * drm_crtc_cleanup - Cleans up the core crtc usage.
+ * @crtc: CRTC to cleanup
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Cleanup @crtc. Removes from drm modesetting space
+ * does NOT free object, caller does that.
+ */
+void drm_crtc_cleanup(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+
+ if (crtc->gamma_store) {
+ kfree(crtc->gamma_store);
+ crtc->gamma_store = NULL;
+ }
+
+ drm_mode_object_put(dev, &crtc->base);
+ list_del(&crtc->head);
+ dev->mode_config.num_crtc--;
+}
+EXPORT_SYMBOL(drm_crtc_cleanup);
+
+/**
+ * drm_mode_probed_add - add a mode to a connector's probed mode list
+ * @connector: connector the new mode
+ * @mode: mode data
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Add @mode to @connector's mode list for later use.
+ */
+void drm_mode_probed_add(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ list_add(&mode->head, &connector->probed_modes);
+}
+EXPORT_SYMBOL(drm_mode_probed_add);
+
+/**
+ * drm_mode_remove - remove and free a mode
+ * @connector: connector list to modify
+ * @mode: mode to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Remove @mode from @connector's mode list, then free it.
+ */
+void drm_mode_remove(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ list_del(&mode->head);
+ drm_mode_destroy(connector->dev, mode);
+}
+EXPORT_SYMBOL(drm_mode_remove);
+
+/**
+ * drm_connector_init - Init a preallocated connector
+ * @dev: DRM device
+ * @connector: the connector to init
+ * @funcs: callbacks for this connector
+ * @name: user visible name of the connector
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Initialises a preallocated connector. Connectors should be
+ * subclassed as part of driver connector objects.
+ *
+ * RETURNS:
+ * Zero on success, error code on failure.
+ */
+int drm_connector_init(struct drm_device *dev,
+ struct drm_connector *connector,
+ const struct drm_connector_funcs *funcs,
+ int connector_type)
+{
+ int ret;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
+ if (ret)
+ goto out;
+
+ connector->base.properties = &connector->properties;
+ connector->dev = dev;
+ connector->funcs = funcs;
+ connector->connector_type = connector_type;
+ connector->connector_type_id =
+ ++drm_connector_enum_list[connector_type].count; /* TODO */
+ INIT_LIST_HEAD(&connector->user_modes);
+ INIT_LIST_HEAD(&connector->probed_modes);
+ INIT_LIST_HEAD(&connector->modes);
+ connector->edid_blob_ptr = NULL;
+
+ list_add_tail(&connector->head, &dev->mode_config.connector_list);
+ dev->mode_config.num_connector++;
+
+ if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
+ drm_connector_attach_property(connector,
+ dev->mode_config.edid_property,
+ 0);
+
+ drm_connector_attach_property(connector,
+ dev->mode_config.dpms_property, 0);
+
+ out:
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_connector_init);
+
+/**
+ * drm_connector_cleanup - cleans up an initialised connector
+ * @connector: connector to cleanup
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Cleans up the connector but doesn't free the object.
+ */
+void drm_connector_cleanup(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_display_mode *mode, *t;
+
+ list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
+ drm_mode_remove(connector, mode);
+
+ list_for_each_entry_safe(mode, t, &connector->modes, head)
+ drm_mode_remove(connector, mode);
+
+ list_for_each_entry_safe(mode, t, &connector->user_modes, head)
+ drm_mode_remove(connector, mode);
+
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_object_put(dev, &connector->base);
+ list_del(&connector->head);
+ dev->mode_config.num_connector--;
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_connector_cleanup);
+
+void drm_connector_unplug_all(struct drm_device *dev)
+{
+ struct drm_connector *connector;
+
+ /* taking the mode config mutex ends up in a clash with sysfs */
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ drm_sysfs_connector_remove(connector);
+
+}
+EXPORT_SYMBOL(drm_connector_unplug_all);
+
+int drm_encoder_init(struct drm_device *dev,
+ struct drm_encoder *encoder,
+ const struct drm_encoder_funcs *funcs,
+ int encoder_type)
+{
+ int ret;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
+ if (ret)
+ goto out;
+
+ encoder->dev = dev;
+ encoder->encoder_type = encoder_type;
+ encoder->funcs = funcs;
+
+ list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
+ dev->mode_config.num_encoder++;
+
+ out:
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_encoder_init);
+
+void drm_encoder_cleanup(struct drm_encoder *encoder)
+{
+ struct drm_device *dev = encoder->dev;
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_object_put(dev, &encoder->base);
+ list_del(&encoder->head);
+ dev->mode_config.num_encoder--;
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_encoder_cleanup);
+
+int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
+ unsigned long possible_crtcs,
+ const struct drm_plane_funcs *funcs,
+ const uint32_t *formats, uint32_t format_count,
+ bool priv)
+{
+ int ret;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
+ if (ret)
+ goto out;
+
+ plane->base.properties = &plane->properties;
+ plane->dev = dev;
+ plane->funcs = funcs;
+ plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
+ GFP_KERNEL);
+ if (!plane->format_types) {
+ DRM_DEBUG_KMS("out of memory when allocating plane\n");
+ drm_mode_object_put(dev, &plane->base);
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
+ plane->format_count = format_count;
+ plane->possible_crtcs = possible_crtcs;
+
+ /* private planes are not exposed to userspace, but depending on
+ * display hardware, might be convenient to allow sharing programming
+ * for the scanout engine with the crtc implementation.
+ */
+ if (!priv) {
+ list_add_tail(&plane->head, &dev->mode_config.plane_list);
+ dev->mode_config.num_plane++;
+ } else {
+ INIT_LIST_HEAD(&plane->head);
+ }
+
+ out:
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_plane_init);
+
+void drm_plane_cleanup(struct drm_plane *plane)
+{
+ struct drm_device *dev = plane->dev;
+
+ mutex_lock(&dev->mode_config.mutex);
+ kfree(plane->format_types);
+ drm_mode_object_put(dev, &plane->base);
+ /* if not added to a list, it must be a private plane */
+ if (!list_empty(&plane->head)) {
+ list_del(&plane->head);
+ dev->mode_config.num_plane--;
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_plane_cleanup);
+
+/**
+ * drm_mode_create - create a new display mode
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold DRM mode_config lock.
+ *
+ * Create a new drm_display_mode, give it an ID, and return it.
+ *
+ * RETURNS:
+ * Pointer to new mode on success, NULL on error.
+ */
+struct drm_display_mode *drm_mode_create(struct drm_device *dev)
+{
+ struct drm_display_mode *nmode;
+
+ nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
+ if (!nmode)
+ return NULL;
+
+ if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
+ kfree(nmode);
+ return NULL;
+ }
+
+ return nmode;
+}
+EXPORT_SYMBOL(drm_mode_create);
+
+/**
+ * drm_mode_destroy - remove a mode
+ * @dev: DRM device
+ * @mode: mode to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Free @mode's unique identifier, then free it.
+ */
+void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
+{
+ if (!mode)
+ return;
+
+ drm_mode_object_put(dev, &mode->base);
+
+ kfree(mode);
+}
+EXPORT_SYMBOL(drm_mode_destroy);
+
+static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
+{
+ struct drm_property *edid;
+ struct drm_property *dpms;
+
+ /*
+ * Standard properties (apply to all connectors)
+ */
+ edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
+ DRM_MODE_PROP_IMMUTABLE,
+ "EDID", 0);
+ dev->mode_config.edid_property = edid;
+
+ dpms = drm_property_create_enum(dev, 0,
+ "DPMS", drm_dpms_enum_list,
+ ARRAY_SIZE(drm_dpms_enum_list));
+ dev->mode_config.dpms_property = dpms;
+
+ return 0;
+}
+
+/**
+ * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
+ * @dev: DRM device
+ *
+ * Called by a driver the first time a DVI-I connector is made.
+ */
+int drm_mode_create_dvi_i_properties(struct drm_device *dev)
+{
+ struct drm_property *dvi_i_selector;
+ struct drm_property *dvi_i_subconnector;
+
+ if (dev->mode_config.dvi_i_select_subconnector_property)
+ return 0;
+
+ dvi_i_selector =
+ drm_property_create_enum(dev, 0,
+ "select subconnector",
+ drm_dvi_i_select_enum_list,
+ ARRAY_SIZE(drm_dvi_i_select_enum_list));
+ dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
+
+ dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
+ "subconnector",
+ drm_dvi_i_subconnector_enum_list,
+ ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
+ dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
+
+/**
+ * drm_create_tv_properties - create TV specific connector properties
+ * @dev: DRM device
+ * @num_modes: number of different TV formats (modes) supported
+ * @modes: array of pointers to strings containing name of each format
+ *
+ * Called by a driver's TV initialization routine, this function creates
+ * the TV specific connector properties for a given device. Caller is
+ * responsible for allocating a list of format names and passing them to
+ * this routine.
+ */
+int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
+ char *modes[])
+{
+ struct drm_property *tv_selector;
+ struct drm_property *tv_subconnector;
+ int i;
+
+ if (dev->mode_config.tv_select_subconnector_property)
+ return 0;
+
+ /*
+ * Basic connector properties
+ */
+ tv_selector = drm_property_create_enum(dev, 0,
+ "select subconnector",
+ drm_tv_select_enum_list,
+ ARRAY_SIZE(drm_tv_select_enum_list));
+ dev->mode_config.tv_select_subconnector_property = tv_selector;
+
+ tv_subconnector =
+ drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
+ "subconnector",
+ drm_tv_subconnector_enum_list,
+ ARRAY_SIZE(drm_tv_subconnector_enum_list));
+ dev->mode_config.tv_subconnector_property = tv_subconnector;
+
+ /*
+ * Other, TV specific properties: margins & TV modes.
+ */
+ dev->mode_config.tv_left_margin_property =
+ drm_property_create_range(dev, 0, "left margin", 0, 100);
+
+ dev->mode_config.tv_right_margin_property =
+ drm_property_create_range(dev, 0, "right margin", 0, 100);
+
+ dev->mode_config.tv_top_margin_property =
+ drm_property_create_range(dev, 0, "top margin", 0, 100);
+
+ dev->mode_config.tv_bottom_margin_property =
+ drm_property_create_range(dev, 0, "bottom margin", 0, 100);
+
+ dev->mode_config.tv_mode_property =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "mode", num_modes);
+ for (i = 0; i < num_modes; i++)
+ drm_property_add_enum(dev->mode_config.tv_mode_property, i,
+ i, modes[i]);
+
+ dev->mode_config.tv_brightness_property =
+ drm_property_create_range(dev, 0, "brightness", 0, 100);
+
+ dev->mode_config.tv_contrast_property =
+ drm_property_create_range(dev, 0, "contrast", 0, 100);
+
+ dev->mode_config.tv_flicker_reduction_property =
+ drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
+
+ dev->mode_config.tv_overscan_property =
+ drm_property_create_range(dev, 0, "overscan", 0, 100);
+
+ dev->mode_config.tv_saturation_property =
+ drm_property_create_range(dev, 0, "saturation", 0, 100);
+
+ dev->mode_config.tv_hue_property =
+ drm_property_create_range(dev, 0, "hue", 0, 100);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_tv_properties);
+
+/**
+ * drm_mode_create_scaling_mode_property - create scaling mode property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_scaling_mode_property(struct drm_device *dev)
+{
+ struct drm_property *scaling_mode;
+
+ if (dev->mode_config.scaling_mode_property)
+ return 0;
+
+ scaling_mode =
+ drm_property_create_enum(dev, 0, "scaling mode",
+ drm_scaling_mode_enum_list,
+ ARRAY_SIZE(drm_scaling_mode_enum_list));
+
+ dev->mode_config.scaling_mode_property = scaling_mode;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
+
+/**
+ * drm_mode_create_dithering_property - create dithering property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_dithering_property(struct drm_device *dev)
+{
+ struct drm_property *dithering_mode;
+
+ if (dev->mode_config.dithering_mode_property)
+ return 0;
+
+ dithering_mode =
+ drm_property_create_enum(dev, 0, "dithering",
+ drm_dithering_mode_enum_list,
+ ARRAY_SIZE(drm_dithering_mode_enum_list));
+ dev->mode_config.dithering_mode_property = dithering_mode;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dithering_property);
+
+/**
+ * drm_mode_create_dirty_property - create dirty property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_dirty_info_property(struct drm_device *dev)
+{
+ struct drm_property *dirty_info;
+
+ if (dev->mode_config.dirty_info_property)
+ return 0;
+
+ dirty_info =
+ drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
+ "dirty",
+ drm_dirty_info_enum_list,
+ ARRAY_SIZE(drm_dirty_info_enum_list));
+ dev->mode_config.dirty_info_property = dirty_info;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
+
+/**
+ * drm_mode_config_init - initialize DRM mode_configuration structure
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * None, should happen single threaded at init time.
+ *
+ * Initialize @dev's mode_config structure, used for tracking the graphics
+ * configuration of @dev.
+ */
+void drm_mode_config_init(struct drm_device *dev)
+{
+ mutex_init(&dev->mode_config.mutex);
+ mutex_init(&dev->mode_config.idr_mutex);
+ INIT_LIST_HEAD(&dev->mode_config.fb_list);
+ INIT_LIST_HEAD(&dev->mode_config.crtc_list);
+ INIT_LIST_HEAD(&dev->mode_config.connector_list);
+ INIT_LIST_HEAD(&dev->mode_config.encoder_list);
+ INIT_LIST_HEAD(&dev->mode_config.property_list);
+ INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
+ INIT_LIST_HEAD(&dev->mode_config.plane_list);
+ idr_init(&dev->mode_config.crtc_idr);
+
+ mutex_lock(&dev->mode_config.mutex);
+ drm_mode_create_standard_connector_properties(dev);
+ mutex_unlock(&dev->mode_config.mutex);
+
+ /* Just to be sure */
+ dev->mode_config.num_fb = 0;
+ dev->mode_config.num_connector = 0;
+ dev->mode_config.num_crtc = 0;
+ dev->mode_config.num_encoder = 0;
+}
+EXPORT_SYMBOL(drm_mode_config_init);
+
+int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
+{
+ uint32_t total_objects = 0;
+
+ total_objects += dev->mode_config.num_crtc;
+ total_objects += dev->mode_config.num_connector;
+ total_objects += dev->mode_config.num_encoder;
+
+ group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
+ if (!group->id_list)
+ return -ENOMEM;
+
+ group->num_crtcs = 0;
+ group->num_connectors = 0;
+ group->num_encoders = 0;
+ return 0;
+}
+
+int drm_mode_group_init_legacy_group(struct drm_device *dev,
+ struct drm_mode_group *group)
+{
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
+ struct drm_connector *connector;
+ int ret;
+
+ if ((ret = drm_mode_group_init(dev, group)))
+ return ret;
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
+ group->id_list[group->num_crtcs++] = crtc->base.id;
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
+ group->id_list[group->num_crtcs + group->num_encoders++] =
+ encoder->base.id;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ group->id_list[group->num_crtcs + group->num_encoders +
+ group->num_connectors++] = connector->base.id;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
+
+/**
+ * drm_mode_config_cleanup - free up DRM mode_config info
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Free up all the connectors and CRTCs associated with this DRM device, then
+ * free up the framebuffers and associated buffer objects.
+ *
+ * FIXME: cleanup any dangling user buffer objects too
+ */
+void drm_mode_config_cleanup(struct drm_device *dev)
+{
+ struct drm_connector *connector, *ot;
+ struct drm_crtc *crtc, *ct;
+ struct drm_encoder *encoder, *enct;
+ struct drm_framebuffer *fb, *fbt;
+ struct drm_property *property, *pt;
+ struct drm_plane *plane, *plt;
+
+ list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
+ head) {
+ encoder->funcs->destroy(encoder);
+ }
+
+ list_for_each_entry_safe(connector, ot,
+ &dev->mode_config.connector_list, head) {
+ connector->funcs->destroy(connector);
+ }
+
+ list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
+ head) {
+ drm_property_destroy(dev, property);
+ }
+
+ list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
+ fb->funcs->destroy(fb);
+ }
+
+ list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
+ head) {
+ plane->funcs->destroy(plane);
+ }
+
+ list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
+ crtc->funcs->destroy(crtc);
+ }
+
+ idr_remove_all(&dev->mode_config.crtc_idr);
+ idr_destroy(&dev->mode_config.crtc_idr);
+}
+EXPORT_SYMBOL(drm_mode_config_cleanup);
+
+/**
+ * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
+ * @out: drm_mode_modeinfo struct to return to the user
+ * @in: drm_display_mode to use
+ *
+ * LOCKING:
+ * None.
+ *
+ * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
+ * the user.
+ */
+static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
+ const struct drm_display_mode *in)
+{
+ WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
+ in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
+ in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
+ in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
+ in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
+ "timing values too large for mode info\n");
+
+ out->clock = in->clock;
+ out->hdisplay = in->hdisplay;
+ out->hsync_start = in->hsync_start;
+ out->hsync_end = in->hsync_end;
+ out->htotal = in->htotal;
+ out->hskew = in->hskew;
+ out->vdisplay = in->vdisplay;
+ out->vsync_start = in->vsync_start;
+ out->vsync_end = in->vsync_end;
+ out->vtotal = in->vtotal;
+ out->vscan = in->vscan;
+ out->vrefresh = in->vrefresh;
+ out->flags = in->flags;
+ out->type = in->type;
+ strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
+ out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
+}
+
+/**
+ * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
+ * @out: drm_display_mode to return to the user
+ * @in: drm_mode_modeinfo to use
+ *
+ * LOCKING:
+ * None.
+ *
+ * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
+ * the caller.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+static int drm_crtc_convert_umode(struct drm_display_mode *out,
+ const struct drm_mode_modeinfo *in)
+{
+ if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
+ return -ERANGE;
+
+ out->clock = in->clock;
+ out->hdisplay = in->hdisplay;
+ out->hsync_start = in->hsync_start;
+ out->hsync_end = in->hsync_end;
+ out->htotal = in->htotal;
+ out->hskew = in->hskew;
+ out->vdisplay = in->vdisplay;
+ out->vsync_start = in->vsync_start;
+ out->vsync_end = in->vsync_end;
+ out->vtotal = in->vtotal;
+ out->vscan = in->vscan;
+ out->vrefresh = in->vrefresh;
+ out->flags = in->flags;
+ out->type = in->type;
+ strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
+ out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
+
+ return 0;
+}
+
+/**
+ * drm_mode_getresources - get graphics configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Construct a set of configuration description structures and return
+ * them to the user, including CRTC, connector and framebuffer configuration.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getresources(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_card_res *card_res = data;
+ struct list_head *lh;
+ struct drm_framebuffer *fb;
+ struct drm_connector *connector;
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
+ int ret = 0;
+ int connector_count = 0;
+ int crtc_count = 0;
+ int fb_count = 0;
+ int encoder_count = 0;
+ int copied = 0, i;
+ uint32_t __user *fb_id;
+ uint32_t __user *crtc_id;
+ uint32_t __user *connector_id;
+ uint32_t __user *encoder_id;
+ struct drm_mode_group *mode_group;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ /*
+ * For the non-control nodes we need to limit the list of resources
+ * by IDs in the group list for this node
+ */
+ list_for_each(lh, &file_priv->fbs)
+ fb_count++;
+
+ mode_group = &file_priv->master->minor->mode_group;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+
+ list_for_each(lh, &dev->mode_config.crtc_list)
+ crtc_count++;
+
+ list_for_each(lh, &dev->mode_config.connector_list)
+ connector_count++;
+
+ list_for_each(lh, &dev->mode_config.encoder_list)
+ encoder_count++;
+ } else {
+
+ crtc_count = mode_group->num_crtcs;
+ connector_count = mode_group->num_connectors;
+ encoder_count = mode_group->num_encoders;
+ }
+
+ card_res->max_height = dev->mode_config.max_height;
+ card_res->min_height = dev->mode_config.min_height;
+ card_res->max_width = dev->mode_config.max_width;
+ card_res->min_width = dev->mode_config.min_width;
+
+ /* handle this in 4 parts */
+ /* FBs */
+ if (card_res->count_fbs >= fb_count) {
+ copied = 0;
+ fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
+ list_for_each_entry(fb, &file_priv->fbs, filp_head) {
+ if (put_user(fb->base.id, fb_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ card_res->count_fbs = fb_count;
+
+ /* CRTCs */
+ if (card_res->count_crtcs >= crtc_count) {
+ copied = 0;
+ crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list,
+ head) {
+ DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
+ if (put_user(crtc->base.id, crtc_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ } else {
+ for (i = 0; i < mode_group->num_crtcs; i++) {
+ if (put_user(mode_group->id_list[i],
+ crtc_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ card_res->count_crtcs = crtc_count;
+
+ /* Encoders */
+ if (card_res->count_encoders >= encoder_count) {
+ copied = 0;
+ encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+ list_for_each_entry(encoder,
+ &dev->mode_config.encoder_list,
+ head) {
+ DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
+ drm_get_encoder_name(encoder));
+ if (put_user(encoder->base.id, encoder_id +
+ copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ } else {
+ for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
+ if (put_user(mode_group->id_list[i],
+ encoder_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+
+ }
+ }
+ card_res->count_encoders = encoder_count;
+
+ /* Connectors */
+ if (card_res->count_connectors >= connector_count) {
+ copied = 0;
+ connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
+ if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+ list_for_each_entry(connector,
+ &dev->mode_config.connector_list,
+ head) {
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
+ connector->base.id,
+ drm_get_connector_name(connector));
+ if (put_user(connector->base.id,
+ connector_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ } else {
+ int start = mode_group->num_crtcs +
+ mode_group->num_encoders;
+ for (i = start; i < start + mode_group->num_connectors; i++) {
+ if (put_user(mode_group->id_list[i],
+ connector_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ card_res->count_connectors = connector_count;
+
+ DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
+ card_res->count_connectors, card_res->count_encoders);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getcrtc - get CRTC configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Construct a CRTC configuration structure to return to the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getcrtc(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc *crtc_resp = data;
+ struct drm_crtc *crtc;
+ struct drm_mode_object *obj;
+ int ret = 0;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
+ DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ crtc_resp->x = crtc->x;
+ crtc_resp->y = crtc->y;
+ crtc_resp->gamma_size = crtc->gamma_size;
+ if (crtc->fb)
+ crtc_resp->fb_id = crtc->fb->base.id;
+ else
+ crtc_resp->fb_id = 0;
+
+ if (crtc->enabled) {
+
+ drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
+ crtc_resp->mode_valid = 1;
+
+ } else {
+ crtc_resp->mode_valid = 0;
+ }
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getconnector - get connector configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Construct a connector configuration structure to return to the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getconnector(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_get_connector *out_resp = data;
+ struct drm_mode_object *obj;
+ struct drm_connector *connector;
+ struct drm_display_mode *mode;
+ int mode_count = 0;
+ int props_count = 0;
+ int encoders_count = 0;
+ int ret = 0;
+ int copied = 0;
+ int i;
+ struct drm_mode_modeinfo u_mode;
+ struct drm_mode_modeinfo __user *mode_ptr;
+ uint32_t __user *prop_ptr;
+ uint64_t __user *prop_values;
+ uint32_t __user *encoder_ptr;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
+
+ DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, out_resp->connector_id,
+ DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ props_count = connector->properties.count;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] != 0) {
+ encoders_count++;
+ }
+ }
+
+ if (out_resp->count_modes == 0) {
+ connector->funcs->fill_modes(connector,
+ dev->mode_config.max_width,
+ dev->mode_config.max_height);
+ }
+
+ /* delayed so we get modes regardless of pre-fill_modes state */
+ list_for_each_entry(mode, &connector->modes, head)
+ mode_count++;
+
+ out_resp->connector_id = connector->base.id;
+ out_resp->connector_type = connector->connector_type;
+ out_resp->connector_type_id = connector->connector_type_id;
+ out_resp->mm_width = connector->display_info.width_mm;
+ out_resp->mm_height = connector->display_info.height_mm;
+ out_resp->subpixel = connector->display_info.subpixel_order;
+ out_resp->connection = connector->status;
+ if (connector->encoder)
+ out_resp->encoder_id = connector->encoder->base.id;
+ else
+ out_resp->encoder_id = 0;
+
+ /*
+ * This ioctl is called twice, once to determine how much space is
+ * needed, and the 2nd time to fill it.
+ */
+ if ((out_resp->count_modes >= mode_count) && mode_count) {
+ copied = 0;
+ mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
+ list_for_each_entry(mode, &connector->modes, head) {
+ drm_crtc_convert_to_umode(&u_mode, mode);
+ if (copy_to_user(mode_ptr + copied,
+ &u_mode, sizeof(u_mode))) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ out_resp->count_modes = mode_count;
+
+ if ((out_resp->count_props >= props_count) && props_count) {
+ copied = 0;
+ prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
+ prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
+ for (i = 0; i < connector->properties.count; i++) {
+ if (put_user(connector->properties.ids[i],
+ prop_ptr + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ if (put_user(connector->properties.values[i],
+ prop_values + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ out_resp->count_props = props_count;
+
+ if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
+ copied = 0;
+ encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] != 0) {
+ if (put_user(connector->encoder_ids[i],
+ encoder_ptr + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ }
+ out_resp->count_encoders = encoders_count;
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_getencoder(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_get_encoder *enc_resp = data;
+ struct drm_mode_object *obj;
+ struct drm_encoder *encoder;
+ int ret = 0;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, enc_resp->encoder_id,
+ DRM_MODE_OBJECT_ENCODER);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ encoder = obj_to_encoder(obj);
+
+ if (encoder->crtc)
+ enc_resp->crtc_id = encoder->crtc->base.id;
+ else
+ enc_resp->crtc_id = 0;
+ enc_resp->encoder_type = encoder->encoder_type;
+ enc_resp->encoder_id = encoder->base.id;
+ enc_resp->possible_crtcs = encoder->possible_crtcs;
+ enc_resp->possible_clones = encoder->possible_clones;
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getplane_res - get plane info
+ * @dev: DRM device
+ * @data: ioctl data
+ * @file_priv: DRM file info
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Return an plane count and set of IDs.
+ */
+int drm_mode_getplane_res(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_get_plane_res *plane_resp = data;
+ struct drm_mode_config *config;
+ struct drm_plane *plane;
+ uint32_t __user *plane_ptr;
+ int copied = 0, ret = 0;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ config = &dev->mode_config;
+
+ /*
+ * This ioctl is called twice, once to determine how much space is
+ * needed, and the 2nd time to fill it.
+ */
+ if (config->num_plane &&
+ (plane_resp->count_planes >= config->num_plane)) {
+ plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
+
+ list_for_each_entry(plane, &config->plane_list, head) {
+ if (put_user(plane->base.id, plane_ptr + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ plane_resp->count_planes = config->num_plane;
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getplane - get plane info
+ * @dev: DRM device
+ * @data: ioctl data
+ * @file_priv: DRM file info
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Return plane info, including formats supported, gamma size, any
+ * current fb, etc.
+ */
+int drm_mode_getplane(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_get_plane *plane_resp = data;
+ struct drm_mode_object *obj;
+ struct drm_plane *plane;
+ uint32_t __user *format_ptr;
+ int ret = 0;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, plane_resp->plane_id,
+ DRM_MODE_OBJECT_PLANE);
+ if (!obj) {
+ ret = -ENOENT;
+ goto out;
+ }
+ plane = obj_to_plane(obj);
+
+ if (plane->crtc)
+ plane_resp->crtc_id = plane->crtc->base.id;
+ else
+ plane_resp->crtc_id = 0;
+
+ if (plane->fb)
+ plane_resp->fb_id = plane->fb->base.id;
+ else
+ plane_resp->fb_id = 0;
+
+ plane_resp->plane_id = plane->base.id;
+ plane_resp->possible_crtcs = plane->possible_crtcs;
+ plane_resp->gamma_size = plane->gamma_size;
+
+ /*
+ * This ioctl is called twice, once to determine how much space is
+ * needed, and the 2nd time to fill it.
+ */
+ if (plane->format_count &&
+ (plane_resp->count_format_types >= plane->format_count)) {
+ format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
+ if (copy_to_user(format_ptr,
+ plane->format_types,
+ sizeof(uint32_t) * plane->format_count)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ }
+ plane_resp->count_format_types = plane->format_count;
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_setplane - set up or tear down an plane
+ * @dev: DRM device
+ * @data: ioctl data*
+ * @file_prive: DRM file info
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Set plane info, including placement, fb, scaling, and other factors.
+ * Or pass a NULL fb to disable.
+ */
+int drm_mode_setplane(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_set_plane *plane_req = data;
+ struct drm_mode_object *obj;
+ struct drm_plane *plane;
+ struct drm_crtc *crtc;
+ struct drm_framebuffer *fb;
+ int ret = 0;
+ unsigned int fb_width, fb_height;
+ int i;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ /*
+ * First, find the plane, crtc, and fb objects. If not available,
+ * we don't bother to call the driver.
+ */
+ obj = drm_mode_object_find(dev, plane_req->plane_id,
+ DRM_MODE_OBJECT_PLANE);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown plane ID %d\n",
+ plane_req->plane_id);
+ ret = -ENOENT;
+ goto out;
+ }
+ plane = obj_to_plane(obj);
+
+ /* No fb means shut it down */
+ if (!plane_req->fb_id) {
+ plane->funcs->disable_plane(plane);
+ plane->crtc = NULL;
+ plane->fb = NULL;
+ goto out;
+ }
+
+ obj = drm_mode_object_find(dev, plane_req->crtc_id,
+ DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown crtc ID %d\n",
+ plane_req->crtc_id);
+ ret = -ENOENT;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ obj = drm_mode_object_find(dev, plane_req->fb_id,
+ DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
+ plane_req->fb_id);
+ ret = -ENOENT;
+ goto out;
+ }
+ fb = obj_to_fb(obj);
+
+ /* Check whether this plane supports the fb pixel format. */
+ for (i = 0; i < plane->format_count; i++)
+ if (fb->pixel_format == plane->format_types[i])
+ break;
+ if (i == plane->format_count) {
+ DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ fb_width = fb->width << 16;
+ fb_height = fb->height << 16;
+
+ /* Make sure source coordinates are inside the fb. */
+ if (plane_req->src_w > fb_width ||
+ plane_req->src_x > fb_width - plane_req->src_w ||
+ plane_req->src_h > fb_height ||
+ plane_req->src_y > fb_height - plane_req->src_h) {
+ DRM_DEBUG_KMS("Invalid source coordinates "
+ "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
+ plane_req->src_w >> 16,
+ ((plane_req->src_w & 0xffff) * 15625) >> 10,
+ plane_req->src_h >> 16,
+ ((plane_req->src_h & 0xffff) * 15625) >> 10,
+ plane_req->src_x >> 16,
+ ((plane_req->src_x & 0xffff) * 15625) >> 10,
+ plane_req->src_y >> 16,
+ ((plane_req->src_y & 0xffff) * 15625) >> 10);
+ ret = -ENOSPC;
+ goto out;
+ }
+
+ /* Give drivers some help against integer overflows */
+ if (plane_req->crtc_w > INT_MAX ||
+ plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
+ plane_req->crtc_h > INT_MAX ||
+ plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
+ DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
+ plane_req->crtc_w, plane_req->crtc_h,
+ plane_req->crtc_x, plane_req->crtc_y);
+ ret = -ERANGE;
+ goto out;
+ }
+
+ ret = plane->funcs->update_plane(plane, crtc, fb,
+ plane_req->crtc_x, plane_req->crtc_y,
+ plane_req->crtc_w, plane_req->crtc_h,
+ plane_req->src_x, plane_req->src_y,
+ plane_req->src_w, plane_req->src_h);
+ if (!ret) {
+ plane->crtc = crtc;
+ plane->fb = fb;
+ }
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return ret;
+}
+
+/**
+ * drm_mode_setcrtc - set CRTC configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Build a new CRTC configuration based on user request.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_setcrtc(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_config *config = &dev->mode_config;
+ struct drm_mode_crtc *crtc_req = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ struct drm_connector **connector_set = NULL, *connector;
+ struct drm_framebuffer *fb = NULL;
+ struct drm_display_mode *mode = NULL;
+ struct drm_mode_set set;
+ uint32_t __user *set_connectors_ptr;
+ int ret;
+ int i;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ /* For some reason crtc x/y offsets are signed internally. */
+ if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
+ return -ERANGE;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, crtc_req->crtc_id,
+ DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+ DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
+
+ if (crtc_req->mode_valid) {
+ /* If we have a mode we need a framebuffer. */
+ /* If we pass -1, set the mode with the currently bound fb */
+ if (crtc_req->fb_id == -1) {
+ if (!crtc->fb) {
+ DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = crtc->fb;
+ } else {
+ obj = drm_mode_object_find(dev, crtc_req->fb_id,
+ DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown FB ID%d\n",
+ crtc_req->fb_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = obj_to_fb(obj);
+ }
+
+ mode = drm_mode_create(dev);
+ if (!mode) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
+ if (ret) {
+ DRM_DEBUG_KMS("Invalid mode\n");
+ goto out;
+ }
+
+ drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
+
+ if (mode->hdisplay > fb->width ||
+ mode->vdisplay > fb->height ||
+ crtc_req->x > fb->width - mode->hdisplay ||
+ crtc_req->y > fb->height - mode->vdisplay) {
+ DRM_DEBUG_KMS("Invalid CRTC viewport %ux%u+%u+%u for fb size %ux%u.\n",
+ mode->hdisplay, mode->vdisplay,
+ crtc_req->x, crtc_req->y,
+ fb->width, fb->height);
+ ret = -ENOSPC;
+ goto out;
+ }
+ }
+
+ if (crtc_req->count_connectors == 0 && mode) {
+ DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
+ DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
+ crtc_req->count_connectors);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (crtc_req->count_connectors > 0) {
+ u32 out_id;
+
+ /* Avoid unbounded kernel memory allocation */
+ if (crtc_req->count_connectors > config->num_connector) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ connector_set = kmalloc(crtc_req->count_connectors *
+ sizeof(struct drm_connector *),
+ GFP_KERNEL);
+ if (!connector_set) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ for (i = 0; i < crtc_req->count_connectors; i++) {
+ set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
+ if (get_user(out_id, &set_connectors_ptr[i])) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ obj = drm_mode_object_find(dev, out_id,
+ DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ DRM_DEBUG_KMS("Connector id %d unknown\n",
+ out_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
+ connector->base.id,
+ drm_get_connector_name(connector));
+
+ connector_set[i] = connector;
+ }
+ }
+
+ set.crtc = crtc;
+ set.x = crtc_req->x;
+ set.y = crtc_req->y;
+ set.mode = mode;
+ set.connectors = connector_set;
+ set.num_connectors = crtc_req->count_connectors;
+ set.fb = fb;
+ ret = crtc->funcs->set_config(&set);
+
+out:
+ kfree(connector_set);
+ drm_mode_destroy(dev, mode);
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_cursor_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_cursor *req = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ int ret = 0;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ if (req->flags & DRM_MODE_CURSOR_BO) {
+ if (!crtc->funcs->cursor_set) {
+ ret = -ENXIO;
+ goto out;
+ }
+ /* Turns off the cursor if handle is 0 */
+ ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
+ req->width, req->height);
+ }
+
+ if (req->flags & DRM_MODE_CURSOR_MOVE) {
+ if (crtc->funcs->cursor_move) {
+ ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
+ } else {
+ ret = -EFAULT;
+ goto out;
+ }
+ }
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/* Original addfb only supported RGB formats, so figure out which one */
+uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
+{
+ uint32_t fmt;
+
+ switch (bpp) {
+ case 8:
+ fmt = DRM_FORMAT_RGB332;
+ break;
+ case 16:
+ if (depth == 15)
+ fmt = DRM_FORMAT_XRGB1555;
+ else
+ fmt = DRM_FORMAT_RGB565;
+ break;
+ case 24:
+ fmt = DRM_FORMAT_RGB888;
+ break;
+ case 32:
+ if (depth == 24)
+ fmt = DRM_FORMAT_XRGB8888;
+ else if (depth == 30)
+ fmt = DRM_FORMAT_XRGB2101010;
+ else
+ fmt = DRM_FORMAT_ARGB8888;
+ break;
+ default:
+ DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
+ fmt = DRM_FORMAT_XRGB8888;
+ break;
+ }
+
+ return fmt;
+}
+EXPORT_SYMBOL(drm_mode_legacy_fb_format);
+
+/**
+ * drm_mode_addfb - add an FB to the graphics configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Add a new FB to the specified CRTC, given a user request.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_addfb(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_fb_cmd *or = data;
+ struct drm_mode_fb_cmd2 r = {};
+ struct drm_mode_config *config = &dev->mode_config;
+ struct drm_framebuffer *fb;
+ int ret = 0;
+
+ /* Use new struct with format internally */
+ r.fb_id = or->fb_id;
+ r.width = or->width;
+ r.height = or->height;
+ r.pitches[0] = or->pitch;
+ r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
+ r.handles[0] = or->handle;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ if ((config->min_width > r.width) || (r.width > config->max_width))
+ return -EINVAL;
+
+ if ((config->min_height > r.height) || (r.height > config->max_height))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ /* TODO check buffer is sufficiently large */
+ /* TODO setup destructor callback */
+
+ fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
+ if (IS_ERR(fb)) {
+ DRM_DEBUG_KMS("could not create framebuffer\n");
+ ret = PTR_ERR(fb);
+ goto out;
+ }
+
+ or->fb_id = fb->base.id;
+ list_add(&fb->filp_head, &file_priv->fbs);
+ DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+static int format_check(const struct drm_mode_fb_cmd2 *r)
+{
+ uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
+
+ switch (format) {
+ case DRM_FORMAT_C8:
+ case DRM_FORMAT_RGB332:
+ case DRM_FORMAT_BGR233:
+ case DRM_FORMAT_XRGB4444:
+ case DRM_FORMAT_XBGR4444:
+ case DRM_FORMAT_RGBX4444:
+ case DRM_FORMAT_BGRX4444:
+ case DRM_FORMAT_ARGB4444:
+ case DRM_FORMAT_ABGR4444:
+ case DRM_FORMAT_RGBA4444:
+ case DRM_FORMAT_BGRA4444:
+ case DRM_FORMAT_XRGB1555:
+ case DRM_FORMAT_XBGR1555:
+ case DRM_FORMAT_RGBX5551:
+ case DRM_FORMAT_BGRX5551:
+ case DRM_FORMAT_ARGB1555:
+ case DRM_FORMAT_ABGR1555:
+ case DRM_FORMAT_RGBA5551:
+ case DRM_FORMAT_BGRA5551:
+ case DRM_FORMAT_RGB565:
+ case DRM_FORMAT_BGR565:
+ case DRM_FORMAT_RGB888:
+ case DRM_FORMAT_BGR888:
+ case DRM_FORMAT_XRGB8888:
+ case DRM_FORMAT_XBGR8888:
+ case DRM_FORMAT_RGBX8888:
+ case DRM_FORMAT_BGRX8888:
+ case DRM_FORMAT_ARGB8888:
+ case DRM_FORMAT_ABGR8888:
+ case DRM_FORMAT_RGBA8888:
+ case DRM_FORMAT_BGRA8888:
+ case DRM_FORMAT_XRGB2101010:
+ case DRM_FORMAT_XBGR2101010:
+ case DRM_FORMAT_RGBX1010102:
+ case DRM_FORMAT_BGRX1010102:
+ case DRM_FORMAT_ARGB2101010:
+ case DRM_FORMAT_ABGR2101010:
+ case DRM_FORMAT_RGBA1010102:
+ case DRM_FORMAT_BGRA1010102:
+ case DRM_FORMAT_YUYV:
+ case DRM_FORMAT_YVYU:
+ case DRM_FORMAT_UYVY:
+ case DRM_FORMAT_VYUY:
+ case DRM_FORMAT_AYUV:
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_NV21:
+ case DRM_FORMAT_NV16:
+ case DRM_FORMAT_NV61:
+ case DRM_FORMAT_YUV410:
+ case DRM_FORMAT_YVU410:
+ case DRM_FORMAT_YUV411:
+ case DRM_FORMAT_YVU411:
+ case DRM_FORMAT_YUV420:
+ case DRM_FORMAT_YVU420:
+ case DRM_FORMAT_YUV422:
+ case DRM_FORMAT_YVU422:
+ case DRM_FORMAT_YUV444:
+ case DRM_FORMAT_YVU444:
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
+{
+ int ret, hsub, vsub, num_planes, i;
+
+ ret = format_check(r);
+ if (ret) {
+ DRM_DEBUG_KMS("bad framebuffer format 0x%08x\n", r->pixel_format);
+ return ret;
+ }
+
+ hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
+ vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
+ num_planes = drm_format_num_planes(r->pixel_format);
+
+ if (r->width == 0 || r->width % hsub) {
+ DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height);
+ return -EINVAL;
+ }
+
+ if (r->height == 0 || r->height % vsub) {
+ DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < num_planes; i++) {
+ unsigned int width = r->width / (i != 0 ? hsub : 1);
+
+ if (!r->handles[i]) {
+ DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
+ return -EINVAL;
+ }
+
+ if (r->pitches[i] < drm_format_plane_cpp(r->pixel_format, i) * width) {
+ DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * drm_mode_addfb2 - add an FB to the graphics configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Add a new FB to the specified CRTC, given a user request with format.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_addfb2(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_fb_cmd2 *r = data;
+ struct drm_mode_config *config = &dev->mode_config;
+ struct drm_framebuffer *fb;
+ int ret;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ if ((config->min_width > r->width) || (r->width > config->max_width)) {
+ DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
+ r->width, config->min_width, config->max_width);
+ return -EINVAL;
+ }
+ if ((config->min_height > r->height) || (r->height > config->max_height)) {
+ DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
+ r->height, config->min_height, config->max_height);
+ return -EINVAL;
+ }
+
+ ret = framebuffer_check(r);
+ if (ret)
+ return ret;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
+ if (IS_ERR(fb)) {
+ DRM_DEBUG_KMS("could not create framebuffer\n");
+ ret = PTR_ERR(fb);
+ goto out;
+ }
+
+ r->fb_id = fb->base.id;
+ list_add(&fb->filp_head, &file_priv->fbs);
+ DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_rmfb - remove an FB from the configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Remove the FB specified by the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_rmfb(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_framebuffer *fb = NULL;
+ struct drm_framebuffer *fbl = NULL;
+ uint32_t *id = data;
+ int ret = 0;
+ int found = 0;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
+ /* TODO check that we really get a framebuffer back. */
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = obj_to_fb(obj);
+
+ list_for_each_entry(fbl, &file_priv->fbs, filp_head)
+ if (fb == fbl)
+ found = 1;
+
+ if (!found) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* TODO release all crtc connected to the framebuffer */
+ /* TODO unhock the destructor from the buffer object */
+
+ list_del(&fb->filp_head);
+ fb->funcs->destroy(fb);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+/**
+ * drm_mode_getfb - get FB info
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Lookup the FB given its ID and return info about it.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_getfb(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_fb_cmd *r = data;
+ struct drm_mode_object *obj;
+ struct drm_framebuffer *fb;
+ int ret = 0;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = obj_to_fb(obj);
+
+ r->height = fb->height;
+ r->width = fb->width;
+ r->depth = fb->depth;
+ r->bpp = fb->bits_per_pixel;
+ r->pitch = fb->pitches[0];
+ fb->funcs->create_handle(fb, file_priv, &r->handle);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_clip_rect __user *clips_ptr;
+ struct drm_clip_rect *clips = NULL;
+ struct drm_mode_fb_dirty_cmd *r = data;
+ struct drm_mode_object *obj;
+ struct drm_framebuffer *fb;
+ unsigned flags;
+ int num_clips;
+ int ret;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out_err1;
+ }
+ fb = obj_to_fb(obj);
+
+ num_clips = r->num_clips;
+ clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
+
+ if (!num_clips != !clips_ptr) {
+ ret = -EINVAL;
+ goto out_err1;
+ }
+
+ flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
+
+ /* If userspace annotates copy, clips must come in pairs */
+ if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
+ ret = -EINVAL;
+ goto out_err1;
+ }
+
+ if (num_clips && clips_ptr) {
+ if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
+ ret = -EINVAL;
+ goto out_err1;
+ }
+ clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
+ if (!clips) {
+ ret = -ENOMEM;
+ goto out_err1;
+ }
+
+ ret = copy_from_user(clips, clips_ptr,
+ num_clips * sizeof(*clips));
+ if (ret) {
+ ret = -EFAULT;
+ goto out_err2;
+ }
+ }
+
+ if (fb->funcs->dirty) {
+ ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
+ clips, num_clips);
+ } else {
+ ret = -ENOSYS;
+ goto out_err2;
+ }
+
+out_err2:
+ kfree(clips);
+out_err1:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+
+/**
+ * drm_fb_release - remove and free the FBs on this file
+ * @filp: file * from the ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Destroy all the FBs associated with @filp.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+void drm_fb_release(struct drm_file *priv)
+{
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_framebuffer *fb, *tfb;
+
+ mutex_lock(&dev->mode_config.mutex);
+ list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
+ list_del(&fb->filp_head);
+ fb->funcs->destroy(fb);
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+}
+
+/**
+ * drm_mode_attachmode - add a mode to the user mode list
+ * @dev: DRM device
+ * @connector: connector to add the mode to
+ * @mode: mode to add
+ *
+ * Add @mode to @connector's user mode list.
+ */
+static void drm_mode_attachmode(struct drm_device *dev,
+ struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ list_add_tail(&mode->head, &connector->user_modes);
+}
+
+int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
+ const struct drm_display_mode *mode)
+{
+ struct drm_connector *connector;
+ int ret = 0;
+ struct drm_display_mode *dup_mode, *next;
+ LIST_HEAD(list);
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (!connector->encoder)
+ continue;
+ if (connector->encoder->crtc == crtc) {
+ dup_mode = drm_mode_duplicate(dev, mode);
+ if (!dup_mode) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ list_add_tail(&dup_mode->head, &list);
+ }
+ }
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (!connector->encoder)
+ continue;
+ if (connector->encoder->crtc == crtc)
+ list_move_tail(list.next, &connector->user_modes);
+ }
+
+ WARN_ON(!list_empty(&list));
+
+ out:
+ list_for_each_entry_safe(dup_mode, next, &list, head)
+ drm_mode_destroy(dev, dup_mode);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_mode_attachmode_crtc);
+
+static int drm_mode_detachmode(struct drm_device *dev,
+ struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ int found = 0;
+ int ret = 0;
+ struct drm_display_mode *match_mode, *t;
+
+ list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
+ if (drm_mode_equal(match_mode, mode)) {
+ list_del(&match_mode->head);
+ drm_mode_destroy(dev, match_mode);
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ ret = -EINVAL;
+
+ return ret;
+}
+
+int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
+{
+ struct drm_connector *connector;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ drm_mode_detachmode(dev, connector, mode);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_detachmode_crtc);
+
+/**
+ * drm_fb_attachmode - Attach a user mode to an connector
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * This attaches a user specified mode to an connector.
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_attachmode_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_mode_cmd *mode_cmd = data;
+ struct drm_connector *connector;
+ struct drm_display_mode *mode;
+ struct drm_mode_object *obj;
+ struct drm_mode_modeinfo *umode = &mode_cmd->mode;
+ int ret;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ mode = drm_mode_create(dev);
+ if (!mode) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ ret = drm_crtc_convert_umode(mode, umode);
+ if (ret) {
+ DRM_DEBUG_KMS("Invalid mode\n");
+ drm_mode_destroy(dev, mode);
+ goto out;
+ }
+
+ drm_mode_attachmode(dev, connector, mode);
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+
+/**
+ * drm_fb_detachmode - Detach a user specified mode from an connector
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_detachmode_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_mode_mode_cmd *mode_cmd = data;
+ struct drm_connector *connector;
+ struct drm_display_mode mode;
+ struct drm_mode_modeinfo *umode = &mode_cmd->mode;
+ int ret;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ connector = obj_to_connector(obj);
+
+ ret = drm_crtc_convert_umode(&mode, umode);
+ if (ret) {
+ DRM_DEBUG_KMS("Invalid mode\n");
+ goto out;
+ }
+
+ ret = drm_mode_detachmode(dev, connector, &mode);
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+struct drm_property *drm_property_create(struct drm_device *dev, int flags,
+ const char *name, int num_values)
+{
+ struct drm_property *property = NULL;
+ int ret;
+
+ property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
+ if (!property)
+ return NULL;
+
+ if (num_values) {
+ property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
+ if (!property->values)
+ goto fail;
+ }
+
+ ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
+ if (ret)
+ goto fail;
+
+ property->flags = flags;
+ property->num_values = num_values;
+ INIT_LIST_HEAD(&property->enum_blob_list);
+
+ if (name) {
+ strncpy(property->name, name, DRM_PROP_NAME_LEN);
+ property->name[DRM_PROP_NAME_LEN-1] = '\0';
+ }
+
+ list_add_tail(&property->head, &dev->mode_config.property_list);
+ return property;
+fail:
+ kfree(property->values);
+ kfree(property);
+ return NULL;
+}
+EXPORT_SYMBOL(drm_property_create);
+
+struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
+ const char *name,
+ const struct drm_prop_enum_list *props,
+ int num_values)
+{
+ struct drm_property *property;
+ int i, ret;
+
+ flags |= DRM_MODE_PROP_ENUM;
+
+ property = drm_property_create(dev, flags, name, num_values);
+ if (!property)
+ return NULL;
+
+ for (i = 0; i < num_values; i++) {
+ ret = drm_property_add_enum(property, i,
+ props[i].type,
+ props[i].name);
+ if (ret) {
+ drm_property_destroy(dev, property);
+ return NULL;
+ }
+ }
+
+ return property;
+}
+EXPORT_SYMBOL(drm_property_create_enum);
+
+struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
+ int flags, const char *name,
+ const struct drm_prop_enum_list *props,
+ int num_values)
+{
+ struct drm_property *property;
+ int i, ret;
+
+ flags |= DRM_MODE_PROP_BITMASK;
+
+ property = drm_property_create(dev, flags, name, num_values);
+ if (!property)
+ return NULL;
+
+ for (i = 0; i < num_values; i++) {
+ ret = drm_property_add_enum(property, i,
+ props[i].type,
+ props[i].name);
+ if (ret) {
+ drm_property_destroy(dev, property);
+ return NULL;
+ }
+ }
+
+ return property;
+}
+EXPORT_SYMBOL(drm_property_create_bitmask);
+
+struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
+ const char *name,
+ uint64_t min, uint64_t max)
+{
+ struct drm_property *property;
+
+ flags |= DRM_MODE_PROP_RANGE;
+
+ property = drm_property_create(dev, flags, name, 2);
+ if (!property)
+ return NULL;
+
+ property->values[0] = min;
+ property->values[1] = max;
+
+ return property;
+}
+EXPORT_SYMBOL(drm_property_create_range);
+
+int drm_property_add_enum(struct drm_property *property, int index,
+ uint64_t value, const char *name)
+{
+ struct drm_property_enum *prop_enum;
+
+ if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
+ return -EINVAL;
+
+ /*
+ * Bitmask enum properties have the additional constraint of values
+ * from 0 to 63
+ */
+ if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63))
+ return -EINVAL;
+
+ if (!list_empty(&property->enum_blob_list)) {
+ list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
+ if (prop_enum->value == value) {
+ strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
+ prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
+ return 0;
+ }
+ }
+ }
+
+ prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
+ if (!prop_enum)
+ return -ENOMEM;
+
+ strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
+ prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
+ prop_enum->value = value;
+
+ property->values[index] = value;
+ list_add_tail(&prop_enum->head, &property->enum_blob_list);
+ return 0;
+}
+EXPORT_SYMBOL(drm_property_add_enum);
+
+void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
+{
+ struct drm_property_enum *prop_enum, *pt;
+
+ list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
+ list_del(&prop_enum->head);
+ kfree(prop_enum);
+ }
+
+ if (property->num_values)
+ kfree(property->values);
+ drm_mode_object_put(dev, &property->base);
+ list_del(&property->head);
+ kfree(property);
+}
+EXPORT_SYMBOL(drm_property_destroy);
+
+void drm_connector_attach_property(struct drm_connector *connector,
+ struct drm_property *property, uint64_t init_val)
+{
+ drm_object_attach_property(&connector->base, property, init_val);
+}
+EXPORT_SYMBOL(drm_connector_attach_property);
+
+int drm_connector_property_set_value(struct drm_connector *connector,
+ struct drm_property *property, uint64_t value)
+{
+ return drm_object_property_set_value(&connector->base, property, value);
+}
+EXPORT_SYMBOL(drm_connector_property_set_value);
+
+int drm_connector_property_get_value(struct drm_connector *connector,
+ struct drm_property *property, uint64_t *val)
+{
+ return drm_object_property_get_value(&connector->base, property, val);
+}
+EXPORT_SYMBOL(drm_connector_property_get_value);
+
+void drm_object_attach_property(struct drm_mode_object *obj,
+ struct drm_property *property,
+ uint64_t init_val)
+{
+ int count = obj->properties->count;
+
+ if (count == DRM_OBJECT_MAX_PROPERTY) {
+ WARN(1, "Failed to attach object property (type: 0x%x). Please "
+ "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
+ "you see this message on the same object type.\n",
+ obj->type);
+ return;
+ }
+
+ obj->properties->ids[count] = property->base.id;
+ obj->properties->values[count] = init_val;
+ obj->properties->count++;
+}
+EXPORT_SYMBOL(drm_object_attach_property);
+
+int drm_object_property_set_value(struct drm_mode_object *obj,
+ struct drm_property *property, uint64_t val)
+{
+ int i;
+
+ for (i = 0; i < obj->properties->count; i++) {
+ if (obj->properties->ids[i] == property->base.id) {
+ obj->properties->values[i] = val;
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+EXPORT_SYMBOL(drm_object_property_set_value);
+
+int drm_object_property_get_value(struct drm_mode_object *obj,
+ struct drm_property *property, uint64_t *val)
+{
+ int i;
+
+ for (i = 0; i < obj->properties->count; i++) {
+ if (obj->properties->ids[i] == property->base.id) {
+ *val = obj->properties->values[i];
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+EXPORT_SYMBOL(drm_object_property_get_value);
+
+int drm_mode_getproperty_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_mode_get_property *out_resp = data;
+ struct drm_property *property;
+ int enum_count = 0;
+ int blob_count = 0;
+ int value_count = 0;
+ int ret = 0, i;
+ int copied;
+ struct drm_property_enum *prop_enum;
+ struct drm_mode_property_enum __user *enum_ptr;
+ struct drm_property_blob *prop_blob;
+ uint32_t __user *blob_id_ptr;
+ uint64_t __user *values_ptr;
+ uint32_t __user *blob_length_ptr;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
+ if (!obj) {
+ ret = -EINVAL;
+ goto done;
+ }
+ property = obj_to_property(obj);
+
+ if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
+ list_for_each_entry(prop_enum, &property->enum_blob_list, head)
+ enum_count++;
+ } else if (property->flags & DRM_MODE_PROP_BLOB) {
+ list_for_each_entry(prop_blob, &property->enum_blob_list, head)
+ blob_count++;
+ }
+
+ value_count = property->num_values;
+
+ strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
+ out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
+ out_resp->flags = property->flags;
+
+ if ((out_resp->count_values >= value_count) && value_count) {
+ values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
+ for (i = 0; i < value_count; i++) {
+ if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
+ ret = -EFAULT;
+ goto done;
+ }
+ }
+ }
+ out_resp->count_values = value_count;
+
+ if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
+ if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
+ copied = 0;
+ enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
+ list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
+
+ if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ if (copy_to_user(&enum_ptr[copied].name,
+ &prop_enum->name, DRM_PROP_NAME_LEN)) {
+ ret = -EFAULT;
+ goto done;
+ }
+ copied++;
+ }
+ }
+ out_resp->count_enum_blobs = enum_count;
+ }
+
+ if (property->flags & DRM_MODE_PROP_BLOB) {
+ if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
+ copied = 0;
+ blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
+ blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
+
+ list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
+ if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ if (put_user(prop_blob->length, blob_length_ptr + copied)) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ copied++;
+ }
+ }
+ out_resp->count_enum_blobs = blob_count;
+ }
+done:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
+ void *data)
+{
+ struct drm_property_blob *blob;
+ int ret;
+
+ if (!length || !data)
+ return NULL;
+
+ blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
+ if (!blob)
+ return NULL;
+
+ ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
+ if (ret) {
+ kfree(blob);
+ return NULL;
+ }
+
+ blob->length = length;
+
+ memcpy(blob->data, data, length);
+
+ list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
+ return blob;
+}
+
+static void drm_property_destroy_blob(struct drm_device *dev,
+ struct drm_property_blob *blob)
+{
+ drm_mode_object_put(dev, &blob->base);
+ list_del(&blob->head);
+ kfree(blob);
+}
+
+int drm_mode_getblob_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_object *obj;
+ struct drm_mode_get_blob *out_resp = data;
+ struct drm_property_blob *blob;
+ int ret = 0;
+ void __user *blob_ptr;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
+ if (!obj) {
+ ret = -EINVAL;
+ goto done;
+ }
+ blob = obj_to_blob(obj);
+
+ if (out_resp->length == blob->length) {
+ blob_ptr = (void __user *)(unsigned long)out_resp->data;
+ if (copy_to_user(blob_ptr, blob->data, blob->length)){
+ ret = -EFAULT;
+ goto done;
+ }
+ }
+ out_resp->length = blob->length;
+
+done:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_connector_update_edid_property(struct drm_connector *connector,
+ struct edid *edid)
+{
+ struct drm_device *dev = connector->dev;
+ int ret, size;
+
+ if (connector->edid_blob_ptr)
+ drm_property_destroy_blob(dev, connector->edid_blob_ptr);
+
+ /* Delete edid, when there is none. */
+ if (!edid) {
+ connector->edid_blob_ptr = NULL;
+ ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
+ return ret;
+ }
+
+ size = EDID_LENGTH * (1 + edid->extensions);
+ connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
+ size, edid);
+
+ ret = drm_connector_property_set_value(connector,
+ dev->mode_config.edid_property,
+ connector->edid_blob_ptr->base.id);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
+
+static bool drm_property_change_is_valid(struct drm_property *property,
+ uint64_t value)
+{
+ if (property->flags & DRM_MODE_PROP_IMMUTABLE)
+ return false;
+ if (property->flags & DRM_MODE_PROP_RANGE) {
+ if (value < property->values[0] || value > property->values[1])
+ return false;
+ return true;
+ } else if (property->flags & DRM_MODE_PROP_BITMASK) {
+ int i;
+ uint64_t valid_mask = 0;
+ for (i = 0; i < property->num_values; i++)
+ valid_mask |= (1ULL << property->values[i]);
+ return !(value & ~valid_mask);
+ } else {
+ int i;
+ for (i = 0; i < property->num_values; i++)
+ if (property->values[i] == value)
+ return true;
+ return false;
+ }
+}
+
+int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_connector_set_property *conn_set_prop = data;
+ struct drm_mode_obj_set_property obj_set_prop = {
+ .value = conn_set_prop->value,
+ .prop_id = conn_set_prop->prop_id,
+ .obj_id = conn_set_prop->connector_id,
+ .obj_type = DRM_MODE_OBJECT_CONNECTOR
+ };
+
+ /* It does all the locking and checking we need */
+ return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
+}
+
+static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
+ struct drm_property *property,
+ uint64_t value)
+{
+ int ret = -EINVAL;
+ struct drm_connector *connector = obj_to_connector(obj);
+
+ /* Do DPMS ourselves */
+ if (property == connector->dev->mode_config.dpms_property) {
+ if (connector->funcs->dpms)
+ (*connector->funcs->dpms)(connector, (int)value);
+ ret = 0;
+ } else if (connector->funcs->set_property)
+ ret = connector->funcs->set_property(connector, property, value);
+
+ /* store the property value if successful */
+ if (!ret)
+ drm_connector_property_set_value(connector, property, value);
+ return ret;
+}
+
+static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
+ struct drm_property *property,
+ uint64_t value)
+{
+ int ret = -EINVAL;
+ struct drm_crtc *crtc = obj_to_crtc(obj);
+
+ if (crtc->funcs->set_property)
+ ret = crtc->funcs->set_property(crtc, property, value);
+ if (!ret)
+ drm_object_property_set_value(obj, property, value);
+
+ return ret;
+}
+
+static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
+ struct drm_property *property,
+ uint64_t value)
+{
+ int ret = -EINVAL;
+ struct drm_plane *plane = obj_to_plane(obj);
+
+ if (plane->funcs->set_property)
+ ret = plane->funcs->set_property(plane, property, value);
+ if (!ret)
+ drm_object_property_set_value(obj, property, value);
+
+ return ret;
+}
+
+int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_obj_get_properties *arg = data;
+ struct drm_mode_object *obj;
+ int ret = 0;
+ int i;
+ int copied = 0;
+ int props_count = 0;
+ uint32_t __user *props_ptr;
+ uint64_t __user *prop_values_ptr;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ if (!obj->properties) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ props_count = obj->properties->count;
+
+ /* This ioctl is called twice, once to determine how much space is
+ * needed, and the 2nd time to fill it. */
+ if ((arg->count_props >= props_count) && props_count) {
+ copied = 0;
+ props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
+ prop_values_ptr = (uint64_t __user *)(unsigned long)
+ (arg->prop_values_ptr);
+ for (i = 0; i < props_count; i++) {
+ if (put_user(obj->properties->ids[i],
+ props_ptr + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ if (put_user(obj->properties->values[i],
+ prop_values_ptr + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ arg->count_props = props_count;
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_obj_set_property *arg = data;
+ struct drm_mode_object *arg_obj;
+ struct drm_mode_object *prop_obj;
+ struct drm_property *property;
+ int ret = -EINVAL;
+ int i;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
+ if (!arg_obj)
+ goto out;
+ if (!arg_obj->properties)
+ goto out;
+
+ for (i = 0; i < arg_obj->properties->count; i++)
+ if (arg_obj->properties->ids[i] == arg->prop_id)
+ break;
+
+ if (i == arg_obj->properties->count)
+ goto out;
+
+ prop_obj = drm_mode_object_find(dev, arg->prop_id,
+ DRM_MODE_OBJECT_PROPERTY);
+ if (!prop_obj)
+ goto out;
+ property = obj_to_property(prop_obj);
+
+ if (!drm_property_change_is_valid(property, arg->value))
+ goto out;
+
+ switch (arg_obj->type) {
+ case DRM_MODE_OBJECT_CONNECTOR:
+ ret = drm_mode_connector_set_obj_prop(arg_obj, property,
+ arg->value);
+ break;
+ case DRM_MODE_OBJECT_CRTC:
+ ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
+ break;
+ case DRM_MODE_OBJECT_PLANE:
+ ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
+ break;
+ }
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_connector_attach_encoder(struct drm_connector *connector,
+ struct drm_encoder *encoder)
+{
+ int i;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] == 0) {
+ connector->encoder_ids[i] = encoder->base.id;
+ return 0;
+ }
+ }
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
+
+void drm_mode_connector_detach_encoder(struct drm_connector *connector,
+ struct drm_encoder *encoder)
+{
+ int i;
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] == encoder->base.id) {
+ connector->encoder_ids[i] = 0;
+ if (connector->encoder == encoder)
+ connector->encoder = NULL;
+ break;
+ }
+ }
+}
+EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
+
+int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
+ int gamma_size)
+{
+ crtc->gamma_size = gamma_size;
+
+ crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
+ if (!crtc->gamma_store) {
+ crtc->gamma_size = 0;
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
+
+int drm_mode_gamma_set_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_lut *crtc_lut = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ void *r_base, *g_base, *b_base;
+ int size;
+ int ret = 0;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ if (crtc->funcs->gamma_set == NULL) {
+ ret = -ENOSYS;
+ goto out;
+ }
+
+ /* memcpy into gamma store */
+ if (crtc_lut->gamma_size != crtc->gamma_size) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ size = crtc_lut->gamma_size * (sizeof(uint16_t));
+ r_base = crtc->gamma_store;
+ if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ g_base = r_base + size;
+ if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ b_base = g_base + size;
+ if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+
+}
+
+int drm_mode_gamma_get_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_lut *crtc_lut = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ void *r_base, *g_base, *b_base;
+ int size;
+ int ret = 0;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+ crtc = obj_to_crtc(obj);
+
+ /* memcpy into gamma store */
+ if (crtc_lut->gamma_size != crtc->gamma_size) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ size = crtc_lut->gamma_size * (sizeof(uint16_t));
+ r_base = crtc->gamma_store;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ g_base = r_base + size;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ b_base = g_base + size;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+int drm_mode_page_flip_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_page_flip *page_flip = data;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ struct drm_framebuffer *fb;
+ struct drm_pending_vblank_event *e = NULL;
+ unsigned long flags;
+ int ret = -EINVAL;
+
+ if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
+ page_flip->reserved != 0)
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.mutex);
+ obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj)
+ goto out;
+ crtc = obj_to_crtc(obj);
+
+ if (crtc->fb == NULL) {
+ /* The framebuffer is currently unbound, presumably
+ * due to a hotplug event, that userspace has not
+ * yet discovered.
+ */
+ ret = -EBUSY;
+ goto out;
+ }
+
+ if (crtc->funcs->page_flip == NULL)
+ goto out;
+
+ obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
+ if (!obj)
+ goto out;
+ fb = obj_to_fb(obj);
+
+ if (crtc->mode.hdisplay > fb->width ||
+ crtc->mode.vdisplay > fb->height ||
+ crtc->x > fb->width - crtc->mode.hdisplay ||
+ crtc->y > fb->height - crtc->mode.vdisplay) {
+ DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d.\n",
+ fb->width, fb->height,
+ crtc->mode.hdisplay, crtc->mode.vdisplay,
+ crtc->x, crtc->y);
+ ret = -ENOSPC;
+ goto out;
+ }
+
+ if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
+ ret = -ENOMEM;
+ spin_lock_irqsave(&dev->event_lock, flags);
+ if (file_priv->event_space < sizeof e->event) {
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ goto out;
+ }
+ file_priv->event_space -= sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ e = kzalloc(sizeof *e, GFP_KERNEL);
+ if (e == NULL) {
+ spin_lock_irqsave(&dev->event_lock, flags);
+ file_priv->event_space += sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ goto out;
+ }
+
+ e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
+ e->event.base.length = sizeof e->event;
+ e->event.user_data = page_flip->user_data;
+ e->base.event = &e->event.base;
+ e->base.file_priv = file_priv;
+ e->base.destroy =
+ (void (*) (struct drm_pending_event *)) kfree;
+ }
+
+ ret = crtc->funcs->page_flip(crtc, fb, e);
+ if (ret) {
+ if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
+ spin_lock_irqsave(&dev->event_lock, flags);
+ file_priv->event_space += sizeof e->event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ kfree(e);
+ }
+ }
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+
+void drm_mode_config_reset(struct drm_device *dev)
+{
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
+ struct drm_connector *connector;
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
+ if (crtc->funcs->reset)
+ crtc->funcs->reset(crtc);
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
+ if (encoder->funcs->reset)
+ encoder->funcs->reset(encoder);
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ if (connector->funcs->reset)
+ connector->funcs->reset(connector);
+}
+EXPORT_SYMBOL(drm_mode_config_reset);
+
+int drm_mode_create_dumb_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_create_dumb *args = data;
+
+ if (!dev->driver->dumb_create)
+ return -ENOSYS;
+ return dev->driver->dumb_create(file_priv, dev, args);
+}
+
+int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_map_dumb *args = data;
+
+ /* call driver ioctl to get mmap offset */
+ if (!dev->driver->dumb_map_offset)
+ return -ENOSYS;
+
+ return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
+}
+
+int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_destroy_dumb *args = data;
+
+ if (!dev->driver->dumb_destroy)
+ return -ENOSYS;
+
+ return dev->driver->dumb_destroy(file_priv, dev, args->handle);
+}
+
+/*
+ * Just need to support RGB formats here for compat with code that doesn't
+ * use pixel formats directly yet.
+ */
+void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
+ int *bpp)
+{
+ switch (format) {
+ case DRM_FORMAT_RGB332:
+ case DRM_FORMAT_BGR233:
+ *depth = 8;
+ *bpp = 8;
+ break;
+ case DRM_FORMAT_XRGB1555:
+ case DRM_FORMAT_XBGR1555:
+ case DRM_FORMAT_RGBX5551:
+ case DRM_FORMAT_BGRX5551:
+ case DRM_FORMAT_ARGB1555:
+ case DRM_FORMAT_ABGR1555:
+ case DRM_FORMAT_RGBA5551:
+ case DRM_FORMAT_BGRA5551:
+ *depth = 15;
+ *bpp = 16;
+ break;
+ case DRM_FORMAT_RGB565:
+ case DRM_FORMAT_BGR565:
+ *depth = 16;
+ *bpp = 16;
+ break;
+ case DRM_FORMAT_RGB888:
+ case DRM_FORMAT_BGR888:
+ *depth = 24;
+ *bpp = 24;
+ break;
+ case DRM_FORMAT_XRGB8888:
+ case DRM_FORMAT_XBGR8888:
+ case DRM_FORMAT_RGBX8888:
+ case DRM_FORMAT_BGRX8888:
+ *depth = 24;
+ *bpp = 32;
+ break;
+ case DRM_FORMAT_XRGB2101010:
+ case DRM_FORMAT_XBGR2101010:
+ case DRM_FORMAT_RGBX1010102:
+ case DRM_FORMAT_BGRX1010102:
+ case DRM_FORMAT_ARGB2101010:
+ case DRM_FORMAT_ABGR2101010:
+ case DRM_FORMAT_RGBA1010102:
+ case DRM_FORMAT_BGRA1010102:
+ *depth = 30;
+ *bpp = 32;
+ break;
+ case DRM_FORMAT_ARGB8888:
+ case DRM_FORMAT_ABGR8888:
+ case DRM_FORMAT_RGBA8888:
+ case DRM_FORMAT_BGRA8888:
+ *depth = 32;
+ *bpp = 32;
+ break;
+ default:
+ DRM_DEBUG_KMS("unsupported pixel format\n");
+ *depth = 0;
+ *bpp = 0;
+ break;
+ }
+}
+EXPORT_SYMBOL(drm_fb_get_bpp_depth);
+
+/**
+ * drm_format_num_planes - get the number of planes for format
+ * @format: pixel format (DRM_FORMAT_*)
+ *
+ * RETURNS:
+ * The number of planes used by the specified pixel format.
+ */
+int drm_format_num_planes(uint32_t format)
+{
+ switch (format) {
+ case DRM_FORMAT_YUV410:
+ case DRM_FORMAT_YVU410:
+ case DRM_FORMAT_YUV411:
+ case DRM_FORMAT_YVU411:
+ case DRM_FORMAT_YUV420:
+ case DRM_FORMAT_YVU420:
+ case DRM_FORMAT_YUV422:
+ case DRM_FORMAT_YVU422:
+ case DRM_FORMAT_YUV444:
+ case DRM_FORMAT_YVU444:
+ return 3;
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_NV21:
+ case DRM_FORMAT_NV16:
+ case DRM_FORMAT_NV61:
+ return 2;
+ default:
+ return 1;
+ }
+}
+EXPORT_SYMBOL(drm_format_num_planes);
+
+/**
+ * drm_format_plane_cpp - determine the bytes per pixel value
+ * @format: pixel format (DRM_FORMAT_*)
+ * @plane: plane index
+ *
+ * RETURNS:
+ * The bytes per pixel value for the specified plane.
+ */
+int drm_format_plane_cpp(uint32_t format, int plane)
+{
+ unsigned int depth;
+ int bpp;
+
+ if (plane >= drm_format_num_planes(format))
+ return 0;
+
+ switch (format) {
+ case DRM_FORMAT_YUYV:
+ case DRM_FORMAT_YVYU:
+ case DRM_FORMAT_UYVY:
+ case DRM_FORMAT_VYUY:
+ return 2;
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_NV21:
+ case DRM_FORMAT_NV16:
+ case DRM_FORMAT_NV61:
+ return plane ? 2 : 1;
+ case DRM_FORMAT_YUV410:
+ case DRM_FORMAT_YVU410:
+ case DRM_FORMAT_YUV411:
+ case DRM_FORMAT_YVU411:
+ case DRM_FORMAT_YUV420:
+ case DRM_FORMAT_YVU420:
+ case DRM_FORMAT_YUV422:
+ case DRM_FORMAT_YVU422:
+ case DRM_FORMAT_YUV444:
+ case DRM_FORMAT_YVU444:
+ return 1;
+ default:
+ drm_fb_get_bpp_depth(format, &depth, &bpp);
+ return bpp >> 3;
+ }
+}
+EXPORT_SYMBOL(drm_format_plane_cpp);
+
+/**
+ * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
+ * @format: pixel format (DRM_FORMAT_*)
+ *
+ * RETURNS:
+ * The horizontal chroma subsampling factor for the
+ * specified pixel format.
+ */
+int drm_format_horz_chroma_subsampling(uint32_t format)
+{
+ switch (format) {
+ case DRM_FORMAT_YUV411:
+ case DRM_FORMAT_YVU411:
+ case DRM_FORMAT_YUV410:
+ case DRM_FORMAT_YVU410:
+ return 4;
+ case DRM_FORMAT_YUYV:
+ case DRM_FORMAT_YVYU:
+ case DRM_FORMAT_UYVY:
+ case DRM_FORMAT_VYUY:
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_NV21:
+ case DRM_FORMAT_NV16:
+ case DRM_FORMAT_NV61:
+ case DRM_FORMAT_YUV422:
+ case DRM_FORMAT_YVU422:
+ case DRM_FORMAT_YUV420:
+ case DRM_FORMAT_YVU420:
+ return 2;
+ default:
+ return 1;
+ }
+}
+EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
+
+/**
+ * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
+ * @format: pixel format (DRM_FORMAT_*)
+ *
+ * RETURNS:
+ * The vertical chroma subsampling factor for the
+ * specified pixel format.
+ */
+int drm_format_vert_chroma_subsampling(uint32_t format)
+{
+ switch (format) {
+ case DRM_FORMAT_YUV410:
+ case DRM_FORMAT_YVU410:
+ return 4;
+ case DRM_FORMAT_YUV420:
+ case DRM_FORMAT_YVU420:
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_NV21:
+ return 2;
+ default:
+ return 1;
+ }
+}
+EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
new file mode 100644
index 0000000..3252e70
--- /dev/null
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -0,0 +1,1025 @@
+/*
+ * Copyright (c) 2006-2008 Intel Corporation
+ * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
+ *
+ * DRM core CRTC related functions
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ *
+ * Authors:
+ * Keith Packard
+ * Eric Anholt <eric@anholt.net>
+ * Dave Airlie <airlied@linux.ie>
+ * Jesse Barnes <jesse.barnes@intel.com>
+ */
+
+#include <linux/export.h>
+#include <linux/moduleparam.h>
+
+#include "drmP.h"
+#include "drm_crtc.h"
+#include "drm_fourcc.h"
+#include "drm_crtc_helper.h"
+#include "drm_fb_helper.h"
+#include "drm_edid.h"
+
+static bool drm_kms_helper_poll = true;
+module_param_named(poll, drm_kms_helper_poll, bool, 0600);
+
+static void drm_mode_validate_flag(struct drm_connector *connector,
+ int flags)
+{
+ struct drm_display_mode *mode;
+
+ if (flags == (DRM_MODE_FLAG_DBLSCAN | DRM_MODE_FLAG_INTERLACE))
+ return;
+
+ list_for_each_entry(mode, &connector->modes, head) {
+ if ((mode->flags & DRM_MODE_FLAG_INTERLACE) &&
+ !(flags & DRM_MODE_FLAG_INTERLACE))
+ mode->status = MODE_NO_INTERLACE;
+ if ((mode->flags & DRM_MODE_FLAG_DBLSCAN) &&
+ !(flags & DRM_MODE_FLAG_DBLSCAN))
+ mode->status = MODE_NO_DBLESCAN;
+ }
+
+ return;
+}
+
+/**
+ * drm_helper_probe_single_connector_modes - get complete set of display modes
+ * @dev: DRM device
+ * @maxX: max width for modes
+ * @maxY: max height for modes
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Based on @dev's mode_config layout, scan all the connectors and try to detect
+ * modes on them. Modes will first be added to the connector's probed_modes
+ * list, then culled (based on validity and the @maxX, @maxY parameters) and
+ * put into the normal modes list.
+ *
+ * Intended to be used either at bootup time or when major configuration
+ * changes have occurred.
+ *
+ * FIXME: take into account monitor limits
+ *
+ * RETURNS:
+ * Number of modes found on @connector.
+ */
+int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
+ uint32_t maxX, uint32_t maxY)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_display_mode *mode;
+ struct drm_connector_helper_funcs *connector_funcs =
+ connector->helper_private;
+ int count = 0;
+ int mode_flags = 0;
+
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id,
+ drm_get_connector_name(connector));
+ /* set all modes to the unverified state */
+ list_for_each_entry(mode, &connector->modes, head)
+ mode->status = MODE_UNVERIFIED;
+
+ if (connector->force) {
+ if (connector->force == DRM_FORCE_ON)
+ connector->status = connector_status_connected;
+ else
+ connector->status = connector_status_disconnected;
+ if (connector->funcs->force)
+ connector->funcs->force(connector);
+ } else {
+ connector->status = connector->funcs->detect(connector, true);
+ drm_kms_helper_poll_enable(dev);
+ }
+
+ if (connector->status == connector_status_disconnected) {
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s] disconnected\n",
+ connector->base.id, drm_get_connector_name(connector));
+ drm_mode_connector_update_edid_property(connector, NULL);
+ goto prune;
+ }
+
+#ifdef CONFIG_DRM_LOAD_EDID_FIRMWARE
+ count = drm_load_edid_firmware(connector);
+ if (count == 0)
+#endif
+ count = (*connector_funcs->get_modes)(connector);
+
+ if (count == 0 && connector->status == connector_status_connected)
+ count = drm_add_modes_noedid(connector, 1024, 768);
+ if (count == 0)
+ goto prune;
+
+ drm_mode_connector_list_update(connector);
+
+ if (maxX && maxY)
+ drm_mode_validate_size(dev, &connector->modes, maxX,
+ maxY, 0);
+
+ if (connector->interlace_allowed)
+ mode_flags |= DRM_MODE_FLAG_INTERLACE;
+ if (connector->doublescan_allowed)
+ mode_flags |= DRM_MODE_FLAG_DBLSCAN;
+ drm_mode_validate_flag(connector, mode_flags);
+
+ list_for_each_entry(mode, &connector->modes, head) {
+ if (mode->status == MODE_OK)
+ mode->status = connector_funcs->mode_valid(connector,
+ mode);
+ }
+
+prune:
+ drm_mode_prune_invalid(dev, &connector->modes, true);
+
+ if (list_empty(&connector->modes))
+ return 0;
+
+ drm_mode_sort(&connector->modes);
+
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s] probed modes :\n", connector->base.id,
+ drm_get_connector_name(connector));
+ list_for_each_entry(mode, &connector->modes, head) {
+ mode->vrefresh = drm_mode_vrefresh(mode);
+
+ drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
+ drm_mode_debug_printmodeline(mode);
+ }
+
+ return count;
+}
+EXPORT_SYMBOL(drm_helper_probe_single_connector_modes);
+
+/**
+ * drm_helper_encoder_in_use - check if a given encoder is in use
+ * @encoder: encoder to check
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Walk @encoders's DRM device's mode_config and see if it's in use.
+ *
+ * RETURNS:
+ * True if @encoder is part of the mode_config, false otherwise.
+ */
+bool drm_helper_encoder_in_use(struct drm_encoder *encoder)
+{
+ struct drm_connector *connector;
+ struct drm_device *dev = encoder->dev;
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ if (connector->encoder == encoder)
+ return true;
+ return false;
+}
+EXPORT_SYMBOL(drm_helper_encoder_in_use);
+
+/**
+ * drm_helper_crtc_in_use - check if a given CRTC is in a mode_config
+ * @crtc: CRTC to check
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Walk @crtc's DRM device's mode_config and see if it's in use.
+ *
+ * RETURNS:
+ * True if @crtc is part of the mode_config, false otherwise.
+ */
+bool drm_helper_crtc_in_use(struct drm_crtc *crtc)
+{
+ struct drm_encoder *encoder;
+ struct drm_device *dev = crtc->dev;
+ /* FIXME: Locking around list access? */
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
+ if (encoder->crtc == crtc && drm_helper_encoder_in_use(encoder))
+ return true;
+ return false;
+}
+EXPORT_SYMBOL(drm_helper_crtc_in_use);
+
+static void
+drm_encoder_disable(struct drm_encoder *encoder)
+{
+ struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
+
+ if (encoder_funcs->disable)
+ (*encoder_funcs->disable)(encoder);
+ else
+ (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF);
+}
+
+/**
+ * drm_helper_disable_unused_functions - disable unused objects
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * If an connector or CRTC isn't part of @dev's mode_config, it can be disabled
+ * by calling its dpms function, which should power it off.
+ */
+void drm_helper_disable_unused_functions(struct drm_device *dev)
+{
+ struct drm_encoder *encoder;
+ struct drm_connector *connector;
+ struct drm_crtc *crtc;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (!connector->encoder)
+ continue;
+ if (connector->status == connector_status_disconnected)
+ connector->encoder = NULL;
+ }
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ if (!drm_helper_encoder_in_use(encoder)) {
+ drm_encoder_disable(encoder);
+ /* disconnector encoder from any connector */
+ encoder->crtc = NULL;
+ }
+ }
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+ crtc->enabled = drm_helper_crtc_in_use(crtc);
+ if (!crtc->enabled) {
+ if (crtc_funcs->disable)
+ (*crtc_funcs->disable)(crtc);
+ else
+ (*crtc_funcs->dpms)(crtc, DRM_MODE_DPMS_OFF);
+ crtc->fb = NULL;
+ }
+ }
+}
+EXPORT_SYMBOL(drm_helper_disable_unused_functions);
+
+/**
+ * drm_encoder_crtc_ok - can a given crtc drive a given encoder?
+ * @encoder: encoder to test
+ * @crtc: crtc to test
+ *
+ * Return false if @encoder can't be driven by @crtc, true otherwise.
+ */
+static bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
+ struct drm_crtc *crtc)
+{
+ struct drm_device *dev;
+ struct drm_crtc *tmp;
+ int crtc_mask = 1;
+
+ WARN(!crtc, "checking null crtc?\n");
+
+ dev = crtc->dev;
+
+ list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) {
+ if (tmp == crtc)
+ break;
+ crtc_mask <<= 1;
+ }
+
+ if (encoder->possible_crtcs & crtc_mask)
+ return true;
+ return false;
+}
+
+/*
+ * Check the CRTC we're going to map each output to vs. its current
+ * CRTC. If they don't match, we have to disable the output and the CRTC
+ * since the driver will have to re-route things.
+ */
+static void
+drm_crtc_prepare_encoders(struct drm_device *dev)
+{
+ struct drm_encoder_helper_funcs *encoder_funcs;
+ struct drm_encoder *encoder;
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ encoder_funcs = encoder->helper_private;
+ /* Disable unused encoders */
+ if (encoder->crtc == NULL)
+ drm_encoder_disable(encoder);
+ /* Disable encoders whose CRTC is about to change */
+ if (encoder_funcs->get_crtc &&
+ encoder->crtc != (*encoder_funcs->get_crtc)(encoder))
+ drm_encoder_disable(encoder);
+ }
+}
+
+/**
+ * drm_crtc_set_mode - set a mode
+ * @crtc: CRTC to program
+ * @mode: mode to use
+ * @x: width of mode
+ * @y: height of mode
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Try to set @mode on @crtc. Give @crtc and its associated connectors a chance
+ * to fixup or reject the mode prior to trying to set it.
+ *
+ * RETURNS:
+ * True if the mode was set successfully, or false otherwise.
+ */
+bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ int x, int y,
+ struct drm_framebuffer *old_fb)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_display_mode *adjusted_mode, saved_mode, saved_hwmode;
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+ struct drm_encoder_helper_funcs *encoder_funcs;
+ int saved_x, saved_y;
+ struct drm_encoder *encoder;
+ bool ret = true;
+
+ crtc->enabled = drm_helper_crtc_in_use(crtc);
+ if (!crtc->enabled)
+ return true;
+
+ adjusted_mode = drm_mode_duplicate(dev, mode);
+ if (!adjusted_mode)
+ return false;
+
+ saved_hwmode = crtc->hwmode;
+ saved_mode = crtc->mode;
+ saved_x = crtc->x;
+ saved_y = crtc->y;
+
+ /* Update crtc values up front so the driver can rely on them for mode
+ * setting.
+ */
+ crtc->mode = *mode;
+ crtc->x = x;
+ crtc->y = y;
+
+ /* Pass our mode to the connectors and the CRTC to give them a chance to
+ * adjust it according to limitations or connector properties, and also
+ * a chance to reject the mode entirely.
+ */
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+
+ if (encoder->crtc != crtc)
+ continue;
+ encoder_funcs = encoder->helper_private;
+ if (!(ret = encoder_funcs->mode_fixup(encoder, mode,
+ adjusted_mode))) {
+ DRM_DEBUG_KMS("Encoder fixup failed\n");
+ goto done;
+ }
+ }
+
+ if (!(ret = crtc_funcs->mode_fixup(crtc, mode, adjusted_mode))) {
+ DRM_DEBUG_KMS("CRTC fixup failed\n");
+ goto done;
+ }
+ DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
+
+ /* Prepare the encoders and CRTCs before setting the mode. */
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+
+ if (encoder->crtc != crtc)
+ continue;
+ encoder_funcs = encoder->helper_private;
+ /* Disable the encoders as the first thing we do. */
+ encoder_funcs->prepare(encoder);
+ }
+
+ drm_crtc_prepare_encoders(dev);
+
+ crtc_funcs->prepare(crtc);
+
+ /* Set up the DPLL and any encoders state that needs to adjust or depend
+ * on the DPLL.
+ */
+ ret = !crtc_funcs->mode_set(crtc, mode, adjusted_mode, x, y, old_fb);
+ if (!ret)
+ goto done;
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+
+ if (encoder->crtc != crtc)
+ continue;
+
+ DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
+ encoder->base.id, drm_get_encoder_name(encoder),
+ mode->base.id, mode->name);
+ encoder_funcs = encoder->helper_private;
+ encoder_funcs->mode_set(encoder, mode, adjusted_mode);
+ }
+
+ /* Now enable the clocks, plane, pipe, and connectors that we set up. */
+ crtc_funcs->commit(crtc);
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+
+ if (encoder->crtc != crtc)
+ continue;
+
+ encoder_funcs = encoder->helper_private;
+ encoder_funcs->commit(encoder);
+
+ }
+
+ /* Store real post-adjustment hardware mode. */
+ crtc->hwmode = *adjusted_mode;
+
+ /* Calculate and store various constants which
+ * are later needed by vblank and swap-completion
+ * timestamping. They are derived from true hwmode.
+ */
+ drm_calc_timestamping_constants(crtc);
+
+ /* FIXME: add subpixel order */
+done:
+ drm_mode_destroy(dev, adjusted_mode);
+ if (!ret) {
+ crtc->hwmode = saved_hwmode;
+ crtc->mode = saved_mode;
+ crtc->x = saved_x;
+ crtc->y = saved_y;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_crtc_helper_set_mode);
+
+
+static int
+drm_crtc_helper_disable(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_connector *connector;
+ struct drm_encoder *encoder;
+
+ /* Decouple all encoders and their attached connectors from this crtc */
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ if (encoder->crtc != crtc)
+ continue;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (connector->encoder != encoder)
+ continue;
+
+ connector->encoder = NULL;
+ }
+ }
+
+ drm_helper_disable_unused_functions(dev);
+ return 0;
+}
+
+/**
+ * drm_crtc_helper_set_config - set a new config from userspace
+ * @crtc: CRTC to setup
+ * @crtc_info: user provided configuration
+ * @new_mode: new mode to set
+ * @connector_set: set of connectors for the new config
+ * @fb: new framebuffer
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Setup a new configuration, provided by the user in @crtc_info, and enable
+ * it.
+ *
+ * RETURNS:
+ * Zero. (FIXME)
+ */
+int drm_crtc_helper_set_config(struct drm_mode_set *set)
+{
+ struct drm_device *dev;
+ struct drm_crtc *save_crtcs, *new_crtc, *crtc;
+ struct drm_encoder *save_encoders, *new_encoder, *encoder;
+ struct drm_framebuffer *old_fb = NULL;
+ bool mode_changed = false; /* if true do a full mode set */
+ bool fb_changed = false; /* if true and !mode_changed just do a flip */
+ struct drm_connector *save_connectors, *connector;
+ int count = 0, ro, fail = 0;
+ struct drm_crtc_helper_funcs *crtc_funcs;
+ struct drm_mode_set save_set;
+ int ret;
+ int i;
+
+ DRM_DEBUG_KMS("\n");
+
+ if (!set)
+ return -EINVAL;
+
+ if (!set->crtc)
+ return -EINVAL;
+
+ if (!set->crtc->helper_private)
+ return -EINVAL;
+
+ crtc_funcs = set->crtc->helper_private;
+
+ if (!set->mode)
+ set->fb = NULL;
+
+ if (set->fb) {
+ DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
+ set->crtc->base.id, set->fb->base.id,
+ (int)set->num_connectors, set->x, set->y);
+ } else {
+ DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
+ return drm_crtc_helper_disable(set->crtc);
+ }
+
+ dev = set->crtc->dev;
+
+ /* Allocate space for the backup of all (non-pointer) crtc, encoder and
+ * connector data. */
+ save_crtcs = kzalloc(dev->mode_config.num_crtc *
+ sizeof(struct drm_crtc), GFP_KERNEL);
+ if (!save_crtcs)
+ return -ENOMEM;
+
+ save_encoders = kzalloc(dev->mode_config.num_encoder *
+ sizeof(struct drm_encoder), GFP_KERNEL);
+ if (!save_encoders) {
+ kfree(save_crtcs);
+ return -ENOMEM;
+ }
+
+ save_connectors = kzalloc(dev->mode_config.num_connector *
+ sizeof(struct drm_connector), GFP_KERNEL);
+ if (!save_connectors) {
+ kfree(save_crtcs);
+ kfree(save_encoders);
+ return -ENOMEM;
+ }
+
+ /* Copy data. Note that driver private data is not affected.
+ * Should anything bad happen only the expected state is
+ * restored, not the drivers personal bookkeeping.
+ */
+ count = 0;
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ save_crtcs[count++] = *crtc;
+ }
+
+ count = 0;
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ save_encoders[count++] = *encoder;
+ }
+
+ count = 0;
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ save_connectors[count++] = *connector;
+ }
+
+ save_set.crtc = set->crtc;
+ save_set.mode = &set->crtc->mode;
+ save_set.x = set->crtc->x;
+ save_set.y = set->crtc->y;
+ save_set.fb = set->crtc->fb;
+
+ /* We should be able to check here if the fb has the same properties
+ * and then just flip_or_move it */
+ if (set->crtc->fb != set->fb) {
+ /* If we have no fb then treat it as a full mode set */
+ if (set->crtc->fb == NULL) {
+ DRM_DEBUG_KMS("crtc has no fb, full mode set\n");
+ mode_changed = true;
+ } else if (set->fb == NULL) {
+ mode_changed = true;
+ } else if (set->fb->depth != set->crtc->fb->depth) {
+ mode_changed = true;
+ } else if (set->fb->bits_per_pixel !=
+ set->crtc->fb->bits_per_pixel) {
+ mode_changed = true;
+ } else
+ fb_changed = true;
+ }
+
+ if (set->x != set->crtc->x || set->y != set->crtc->y)
+ fb_changed = true;
+
+ if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
+ DRM_DEBUG_KMS("modes are different, full mode set\n");
+ drm_mode_debug_printmodeline(&set->crtc->mode);
+ drm_mode_debug_printmodeline(set->mode);
+ mode_changed = true;
+ }
+
+ /* a) traverse passed in connector list and get encoders for them */
+ count = 0;
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ struct drm_connector_helper_funcs *connector_funcs =
+ connector->helper_private;
+ new_encoder = connector->encoder;
+ for (ro = 0; ro < set->num_connectors; ro++) {
+ if (set->connectors[ro] == connector) {
+ new_encoder = connector_funcs->best_encoder(connector);
+ /* if we can't get an encoder for a connector
+ we are setting now - then fail */
+ if (new_encoder == NULL)
+ /* don't break so fail path works correct */
+ fail = 1;
+ break;
+ }
+ }
+
+ if (new_encoder != connector->encoder) {
+ DRM_DEBUG_KMS("encoder changed, full mode switch\n");
+ mode_changed = true;
+ /* If the encoder is reused for another connector, then
+ * the appropriate crtc will be set later.
+ */
+ if (connector->encoder)
+ connector->encoder->crtc = NULL;
+ connector->encoder = new_encoder;
+ }
+ }
+
+ if (fail) {
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ count = 0;
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (!connector->encoder)
+ continue;
+
+ if (connector->encoder->crtc == set->crtc)
+ new_crtc = NULL;
+ else
+ new_crtc = connector->encoder->crtc;
+
+ for (ro = 0; ro < set->num_connectors; ro++) {
+ if (set->connectors[ro] == connector)
+ new_crtc = set->crtc;
+ }
+
+ /* Make sure the new CRTC will work with the encoder */
+ if (new_crtc &&
+ !drm_encoder_crtc_ok(connector->encoder, new_crtc)) {
+ ret = -EINVAL;
+ goto fail;
+ }
+ if (new_crtc != connector->encoder->crtc) {
+ DRM_DEBUG_KMS("crtc changed, full mode switch\n");
+ mode_changed = true;
+ connector->encoder->crtc = new_crtc;
+ }
+ if (new_crtc) {
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
+ connector->base.id, drm_get_connector_name(connector),
+ new_crtc->base.id);
+ } else {
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
+ connector->base.id, drm_get_connector_name(connector));
+ }
+ }
+
+ /* mode_set_base is not a required function */
+ if (fb_changed && !crtc_funcs->mode_set_base)
+ mode_changed = true;
+
+ if (mode_changed) {
+ set->crtc->enabled = drm_helper_crtc_in_use(set->crtc);
+ if (set->crtc->enabled) {
+ DRM_DEBUG_KMS("attempting to set mode from"
+ " userspace\n");
+ drm_mode_debug_printmodeline(set->mode);
+ old_fb = set->crtc->fb;
+ set->crtc->fb = set->fb;
+ if (!drm_crtc_helper_set_mode(set->crtc, set->mode,
+ set->x, set->y,
+ old_fb)) {
+ DRM_ERROR("failed to set mode on [CRTC:%d]\n",
+ set->crtc->base.id);
+ set->crtc->fb = old_fb;
+ ret = -EINVAL;
+ goto fail;
+ }
+ DRM_DEBUG_KMS("Setting connector DPMS state to on\n");
+ for (i = 0; i < set->num_connectors; i++) {
+ DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id,
+ drm_get_connector_name(set->connectors[i]));
+ set->connectors[i]->funcs->dpms(set->connectors[i], DRM_MODE_DPMS_ON);
+ }
+ }
+ drm_helper_disable_unused_functions(dev);
+ } else if (fb_changed) {
+ set->crtc->x = set->x;
+ set->crtc->y = set->y;
+
+ old_fb = set->crtc->fb;
+ if (set->crtc->fb != set->fb)
+ set->crtc->fb = set->fb;
+ ret = crtc_funcs->mode_set_base(set->crtc,
+ set->x, set->y, old_fb);
+ if (ret != 0) {
+ set->crtc->fb = old_fb;
+ goto fail;
+ }
+ }
+
+ kfree(save_connectors);
+ kfree(save_encoders);
+ kfree(save_crtcs);
+ return 0;
+
+fail:
+ /* Restore all previous data. */
+ count = 0;
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ *crtc = save_crtcs[count++];
+ }
+
+ count = 0;
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ *encoder = save_encoders[count++];
+ }
+
+ count = 0;
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ *connector = save_connectors[count++];
+ }
+
+ /* Try to restore the config */
+ if (mode_changed &&
+ !drm_crtc_helper_set_mode(save_set.crtc, save_set.mode, save_set.x,
+ save_set.y, save_set.fb))
+ DRM_ERROR("failed to restore config after modeset failure\n");
+
+ kfree(save_connectors);
+ kfree(save_encoders);
+ kfree(save_crtcs);
+ return ret;
+}
+EXPORT_SYMBOL(drm_crtc_helper_set_config);
+
+static int drm_helper_choose_encoder_dpms(struct drm_encoder *encoder)
+{
+ int dpms = DRM_MODE_DPMS_OFF;
+ struct drm_connector *connector;
+ struct drm_device *dev = encoder->dev;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ if (connector->encoder == encoder)
+ if (connector->dpms < dpms)
+ dpms = connector->dpms;
+ return dpms;
+}
+
+static int drm_helper_choose_crtc_dpms(struct drm_crtc *crtc)
+{
+ int dpms = DRM_MODE_DPMS_OFF;
+ struct drm_connector *connector;
+ struct drm_device *dev = crtc->dev;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ if (connector->encoder && connector->encoder->crtc == crtc)
+ if (connector->dpms < dpms)
+ dpms = connector->dpms;
+ return dpms;
+}
+
+/**
+ * drm_helper_connector_dpms
+ * @connector affected connector
+ * @mode DPMS mode
+ *
+ * Calls the low-level connector DPMS function, then
+ * calls appropriate encoder and crtc DPMS functions as well
+ */
+void drm_helper_connector_dpms(struct drm_connector *connector, int mode)
+{
+ struct drm_encoder *encoder = connector->encoder;
+ struct drm_crtc *crtc = encoder ? encoder->crtc : NULL;
+ int old_dpms;
+
+ if (mode == connector->dpms)
+ return;
+
+ old_dpms = connector->dpms;
+ connector->dpms = mode;
+
+ /* from off to on, do crtc then encoder */
+ if (mode < old_dpms) {
+ if (crtc) {
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+ if (crtc_funcs->dpms)
+ (*crtc_funcs->dpms) (crtc,
+ drm_helper_choose_crtc_dpms(crtc));
+ }
+ if (encoder) {
+ struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
+ if (encoder_funcs->dpms)
+ (*encoder_funcs->dpms) (encoder,
+ drm_helper_choose_encoder_dpms(encoder));
+ }
+ }
+
+ /* from on to off, do encoder then crtc */
+ if (mode > old_dpms) {
+ if (encoder) {
+ struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
+ if (encoder_funcs->dpms)
+ (*encoder_funcs->dpms) (encoder,
+ drm_helper_choose_encoder_dpms(encoder));
+ }
+ if (crtc) {
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+ if (crtc_funcs->dpms)
+ (*crtc_funcs->dpms) (crtc,
+ drm_helper_choose_crtc_dpms(crtc));
+ }
+ }
+
+ return;
+}
+EXPORT_SYMBOL(drm_helper_connector_dpms);
+
+int drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
+ struct drm_mode_fb_cmd2 *mode_cmd)
+{
+ int i;
+
+ fb->width = mode_cmd->width;
+ fb->height = mode_cmd->height;
+ for (i = 0; i < 4; i++) {
+ fb->pitches[i] = mode_cmd->pitches[i];
+ fb->offsets[i] = mode_cmd->offsets[i];
+ }
+ drm_fb_get_bpp_depth(mode_cmd->pixel_format, &fb->depth,
+ &fb->bits_per_pixel);
+ fb->pixel_format = mode_cmd->pixel_format;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_helper_mode_fill_fb_struct);
+
+int drm_helper_resume_force_mode(struct drm_device *dev)
+{
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
+ struct drm_encoder_helper_funcs *encoder_funcs;
+ struct drm_crtc_helper_funcs *crtc_funcs;
+ int ret;
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+
+ if (!crtc->enabled)
+ continue;
+
+ ret = drm_crtc_helper_set_mode(crtc, &crtc->mode,
+ crtc->x, crtc->y, crtc->fb);
+
+ if (ret == false)
+ DRM_ERROR("failed to set mode on crtc %p\n", crtc);
+
+ /* Turn off outputs that were already powered off */
+ if (drm_helper_choose_crtc_dpms(crtc)) {
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+
+ if(encoder->crtc != crtc)
+ continue;
+
+ encoder_funcs = encoder->helper_private;
+ if (encoder_funcs->dpms)
+ (*encoder_funcs->dpms) (encoder,
+ drm_helper_choose_encoder_dpms(encoder));
+ }
+
+ crtc_funcs = crtc->helper_private;
+ if (crtc_funcs->dpms)
+ (*crtc_funcs->dpms) (crtc,
+ drm_helper_choose_crtc_dpms(crtc));
+ }
+ }
+ /* disable the unused connectors while restoring the modesetting */
+ drm_helper_disable_unused_functions(dev);
+ return 0;
+}
+EXPORT_SYMBOL(drm_helper_resume_force_mode);
+
+#define DRM_OUTPUT_POLL_PERIOD (10*HZ)
+static void output_poll_execute(struct work_struct *work)
+{
+ struct delayed_work *delayed_work = to_delayed_work(work);
+ struct drm_device *dev = container_of(delayed_work, struct drm_device, mode_config.output_poll_work);
+ struct drm_connector *connector;
+ enum drm_connector_status old_status;
+ bool repoll = false, changed = false;
+
+ if (!drm_kms_helper_poll)
+ return;
+
+ mutex_lock(&dev->mode_config.mutex);
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+
+ /* if this is HPD or polled don't check it -
+ TV out for instance */
+ if (!connector->polled)
+ continue;
+
+ else if (connector->polled & (DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT))
+ repoll = true;
+
+ old_status = connector->status;
+ /* if we are connected and don't want to poll for disconnect
+ skip it */
+ if (old_status == connector_status_connected &&
+ !(connector->polled & DRM_CONNECTOR_POLL_DISCONNECT) &&
+ !(connector->polled & DRM_CONNECTOR_POLL_HPD))
+ continue;
+
+ connector->status = connector->funcs->detect(connector, false);
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n",
+ connector->base.id,
+ drm_get_connector_name(connector),
+ old_status, connector->status);
+ if (old_status != connector->status)
+ changed = true;
+ }
+
+ mutex_unlock(&dev->mode_config.mutex);
+
+ if (changed) {
+ /* send a uevent + call fbdev */
+ drm_sysfs_hotplug_event(dev);
+ if (dev->mode_config.funcs->output_poll_changed)
+ dev->mode_config.funcs->output_poll_changed(dev);
+ }
+
+ if (repoll)
+ queue_delayed_work(system_nrt_wq, delayed_work, DRM_OUTPUT_POLL_PERIOD);
+}
+
+void drm_kms_helper_poll_disable(struct drm_device *dev)
+{
+ if (!dev->mode_config.poll_enabled)
+ return;
+ cancel_delayed_work_sync(&dev->mode_config.output_poll_work);
+}
+EXPORT_SYMBOL(drm_kms_helper_poll_disable);
+
+void drm_kms_helper_poll_enable(struct drm_device *dev)
+{
+ bool poll = false;
+ struct drm_connector *connector;
+
+ if (!dev->mode_config.poll_enabled || !drm_kms_helper_poll)
+ return;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (connector->polled)
+ poll = true;
+ }
+
+ if (poll)
+ queue_delayed_work(system_nrt_wq, &dev->mode_config.output_poll_work, DRM_OUTPUT_POLL_PERIOD);
+}
+EXPORT_SYMBOL(drm_kms_helper_poll_enable);
+
+void drm_kms_helper_poll_init(struct drm_device *dev)
+{
+ INIT_DELAYED_WORK(&dev->mode_config.output_poll_work, output_poll_execute);
+ dev->mode_config.poll_enabled = true;
+
+ drm_kms_helper_poll_enable(dev);
+}
+EXPORT_SYMBOL(drm_kms_helper_poll_init);
+
+void drm_kms_helper_poll_fini(struct drm_device *dev)
+{
+ drm_kms_helper_poll_disable(dev);
+}
+EXPORT_SYMBOL(drm_kms_helper_poll_fini);
+
+void drm_helper_hpd_irq_event(struct drm_device *dev)
+{
+ if (!dev->mode_config.poll_enabled)
+ return;
+
+ /* kill timer and schedule immediate execution, this doesn't block */
+ cancel_delayed_work(&dev->mode_config.output_poll_work);
+ if (drm_kms_helper_poll)
+ queue_delayed_work(system_nrt_wq, &dev->mode_config.output_poll_work, 0);
+}
+EXPORT_SYMBOL(drm_helper_hpd_irq_event);
diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
new file mode 100644
index 0000000..70b13fc
--- /dev/null
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -0,0 +1,241 @@
+/**
+ * \file drm_debugfs.c
+ * debugfs support for DRM
+ *
+ * \author Ben Gamari <bgamari@gmail.com>
+ */
+
+/*
+ * Created: Sun Dec 21 13:08:50 2008 by bgamari@gmail.com
+ *
+ * Copyright 2008 Ben Gamari <bgamari@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+#include "drmP.h"
+
+#if defined(CONFIG_DEBUG_FS)
+
+/***************************************************
+ * Initialization, etc.
+ **************************************************/
+
+static struct drm_info_list drm_debugfs_list[] = {
+ {"name", drm_name_info, 0},
+ {"vm", drm_vm_info, 0},
+ {"clients", drm_clients_info, 0},
+ {"bufs", drm_bufs_info, 0},
+ {"gem_names", drm_gem_name_info, DRIVER_GEM},
+#if DRM_DEBUG_CODE
+ {"vma", drm_vma_info, 0},
+#endif
+};
+#define DRM_DEBUGFS_ENTRIES ARRAY_SIZE(drm_debugfs_list)
+
+
+static int drm_debugfs_open(struct inode *inode, struct file *file)
+{
+ struct drm_info_node *node = inode->i_private;
+
+ return single_open(file, node->info_ent->show, node);
+}
+
+
+static const struct file_operations drm_debugfs_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_debugfs_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+
+/**
+ * Initialize a given set of debugfs files for a device
+ *
+ * \param files The array of files to create
+ * \param count The number of files given
+ * \param root DRI debugfs dir entry.
+ * \param minor device minor number
+ * \return Zero on success, non-zero on failure
+ *
+ * Create a given set of debugfs files represented by an array of
+ * gdm_debugfs_lists in the given root directory.
+ */
+int drm_debugfs_create_files(struct drm_info_list *files, int count,
+ struct dentry *root, struct drm_minor *minor)
+{
+ struct drm_device *dev = minor->dev;
+ struct dentry *ent;
+ struct drm_info_node *tmp;
+ int i, ret;
+
+ for (i = 0; i < count; i++) {
+ u32 features = files[i].driver_features;
+
+ if (features != 0 &&
+ (dev->driver->driver_features & features) != features)
+ continue;
+
+ tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
+ if (tmp == NULL) {
+ ret = -1;
+ goto fail;
+ }
+ ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,
+ root, tmp, &drm_debugfs_fops);
+ if (!ent) {
+ DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s/%s\n",
+ root->d_name.name, files[i].name);
+ kfree(tmp);
+ ret = -1;
+ goto fail;
+ }
+
+ tmp->minor = minor;
+ tmp->dent = ent;
+ tmp->info_ent = &files[i];
+
+ mutex_lock(&minor->debugfs_lock);
+ list_add(&tmp->list, &minor->debugfs_list);
+ mutex_unlock(&minor->debugfs_lock);
+ }
+ return 0;
+
+fail:
+ drm_debugfs_remove_files(files, count, minor);
+ return ret;
+}
+EXPORT_SYMBOL(drm_debugfs_create_files);
+
+/**
+ * Initialize the DRI debugfs filesystem for a device
+ *
+ * \param dev DRM device
+ * \param minor device minor number
+ * \param root DRI debugfs dir entry.
+ *
+ * Create the DRI debugfs root entry "/sys/kernel/debug/dri", the device debugfs root entry
+ * "/sys/kernel/debug/dri/%minor%/", and each entry in debugfs_list as
+ * "/sys/kernel/debug/dri/%minor%/%name%".
+ */
+int drm_debugfs_init(struct drm_minor *minor, int minor_id,
+ struct dentry *root)
+{
+ struct drm_device *dev = minor->dev;
+ char name[64];
+ int ret;
+
+ INIT_LIST_HEAD(&minor->debugfs_list);
+ mutex_init(&minor->debugfs_lock);
+ sprintf(name, "%d", minor_id);
+ minor->debugfs_root = debugfs_create_dir(name, root);
+ if (!minor->debugfs_root) {
+ DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s\n", name);
+ return -1;
+ }
+
+ ret = drm_debugfs_create_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES,
+ minor->debugfs_root, minor);
+ if (ret) {
+ debugfs_remove(minor->debugfs_root);
+ minor->debugfs_root = NULL;
+ DRM_ERROR("Failed to create core drm debugfs files\n");
+ return ret;
+ }
+
+ if (dev->driver->debugfs_init) {
+ ret = dev->driver->debugfs_init(minor);
+ if (ret) {
+ DRM_ERROR("DRM: Driver failed to initialize "
+ "/sys/kernel/debug/dri.\n");
+ return ret;
+ }
+ }
+ return 0;
+}
+
+
+/**
+ * Remove a list of debugfs files
+ *
+ * \param files The list of files
+ * \param count The number of files
+ * \param minor The minor of which we should remove the files
+ * \return always zero.
+ *
+ * Remove all debugfs entries created by debugfs_init().
+ */
+int drm_debugfs_remove_files(struct drm_info_list *files, int count,
+ struct drm_minor *minor)
+{
+ struct list_head *pos, *q;
+ struct drm_info_node *tmp;
+ int i;
+
+ mutex_lock(&minor->debugfs_lock);
+ for (i = 0; i < count; i++) {
+ list_for_each_safe(pos, q, &minor->debugfs_list) {
+ tmp = list_entry(pos, struct drm_info_node, list);
+ if (tmp->info_ent == &files[i]) {
+ debugfs_remove(tmp->dent);
+ list_del(pos);
+ kfree(tmp);
+ }
+ }
+ }
+ mutex_unlock(&minor->debugfs_lock);
+ return 0;
+}
+EXPORT_SYMBOL(drm_debugfs_remove_files);
+
+/**
+ * Cleanup the debugfs filesystem resources.
+ *
+ * \param minor device minor number.
+ * \return always zero.
+ *
+ * Remove all debugfs entries created by debugfs_init().
+ */
+int drm_debugfs_cleanup(struct drm_minor *minor)
+{
+ struct drm_device *dev = minor->dev;
+
+ if (!minor->debugfs_root)
+ return 0;
+
+ if (dev->driver->debugfs_cleanup)
+ dev->driver->debugfs_cleanup(minor);
+
+ drm_debugfs_remove_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES, minor);
+
+ debugfs_remove(minor->debugfs_root);
+ minor->debugfs_root = NULL;
+
+ return 0;
+}
+
+#endif /* CONFIG_DEBUG_FS */
+
diff --git a/drivers/gpu/drm/drm_dma.c b/drivers/gpu/drm/drm_dma.c
new file mode 100644
index 0000000..08f5e53
--- /dev/null
+++ b/drivers/gpu/drm/drm_dma.c
@@ -0,0 +1,157 @@
+/**
+ * \file drm_dma.c
+ * DMA IOCTL and function support
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/export.h>
+#include "drmP.h"
+
+/**
+ * Initialize the DMA data.
+ *
+ * \param dev DRM device.
+ * \return zero on success or a negative value on failure.
+ *
+ * Allocate and initialize a drm_device_dma structure.
+ */
+int drm_dma_setup(struct drm_device *dev)
+{
+ int i;
+
+ dev->dma = kzalloc(sizeof(*dev->dma), GFP_KERNEL);
+ if (!dev->dma)
+ return -ENOMEM;
+
+ for (i = 0; i <= DRM_MAX_ORDER; i++)
+ memset(&dev->dma->bufs[i], 0, sizeof(dev->dma->bufs[0]));
+
+ return 0;
+}
+
+/**
+ * Cleanup the DMA resources.
+ *
+ * \param dev DRM device.
+ *
+ * Free all pages associated with DMA buffers, the buffers and pages lists, and
+ * finally the drm_device::dma structure itself.
+ */
+void drm_dma_takedown(struct drm_device *dev)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int i, j;
+
+ if (!dma)
+ return;
+
+ /* Clear dma buffers */
+ for (i = 0; i <= DRM_MAX_ORDER; i++) {
+ if (dma->bufs[i].seg_count) {
+ DRM_DEBUG("order %d: buf_count = %d,"
+ " seg_count = %d\n",
+ i,
+ dma->bufs[i].buf_count,
+ dma->bufs[i].seg_count);
+ for (j = 0; j < dma->bufs[i].seg_count; j++) {
+ if (dma->bufs[i].seglist[j]) {
+ drm_pci_free(dev, dma->bufs[i].seglist[j]);
+ }
+ }
+ kfree(dma->bufs[i].seglist);
+ }
+ if (dma->bufs[i].buf_count) {
+ for (j = 0; j < dma->bufs[i].buf_count; j++) {
+ kfree(dma->bufs[i].buflist[j].dev_private);
+ }
+ kfree(dma->bufs[i].buflist);
+ }
+ }
+
+ kfree(dma->buflist);
+ kfree(dma->pagelist);
+ kfree(dev->dma);
+ dev->dma = NULL;
+}
+
+/**
+ * Free a buffer.
+ *
+ * \param dev DRM device.
+ * \param buf buffer to free.
+ *
+ * Resets the fields of \p buf.
+ */
+void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf)
+{
+ if (!buf)
+ return;
+
+ buf->waiting = 0;
+ buf->pending = 0;
+ buf->file_priv = NULL;
+ buf->used = 0;
+}
+
+/**
+ * Reclaim the buffers.
+ *
+ * \param file_priv DRM file private.
+ *
+ * Frees each buffer associated with \p file_priv not already on the hardware.
+ */
+void drm_core_reclaim_buffers(struct drm_device *dev,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int i;
+
+ if (!dma)
+ return;
+ for (i = 0; i < dma->buf_count; i++) {
+ if (dma->buflist[i]->file_priv == file_priv) {
+ switch (dma->buflist[i]->list) {
+ case DRM_LIST_NONE:
+ drm_free_buffer(dev, dma->buflist[i]);
+ break;
+ case DRM_LIST_WAIT:
+ dma->buflist[i]->list = DRM_LIST_RECLAIM;
+ break;
+ default:
+ /* Buffer already on hardware. */
+ break;
+ }
+ }
+ }
+}
+
+EXPORT_SYMBOL(drm_core_reclaim_buffers);
diff --git a/drivers/gpu/drm/drm_dp_i2c_helper.c b/drivers/gpu/drm/drm_dp_i2c_helper.c
new file mode 100644
index 0000000..f7eba0a
--- /dev/null
+++ b/drivers/gpu/drm/drm_dp_i2c_helper.c
@@ -0,0 +1,208 @@
+/*
+ * Copyright © 2009 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/i2c.h>
+#include "drm_dp_helper.h"
+#include "drmP.h"
+
+/* Run a single AUX_CH I2C transaction, writing/reading data as necessary */
+static int
+i2c_algo_dp_aux_transaction(struct i2c_adapter *adapter, int mode,
+ uint8_t write_byte, uint8_t *read_byte)
+{
+ struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+ int ret;
+
+ ret = (*algo_data->aux_ch)(adapter, mode,
+ write_byte, read_byte);
+ return ret;
+}
+
+/*
+ * I2C over AUX CH
+ */
+
+/*
+ * Send the address. If the I2C link is running, this 'restarts'
+ * the connection with the new address, this is used for doing
+ * a write followed by a read (as needed for DDC)
+ */
+static int
+i2c_algo_dp_aux_address(struct i2c_adapter *adapter, u16 address, bool reading)
+{
+ struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+ int mode = MODE_I2C_START;
+ int ret;
+
+ if (reading)
+ mode |= MODE_I2C_READ;
+ else
+ mode |= MODE_I2C_WRITE;
+ algo_data->address = address;
+ algo_data->running = true;
+ ret = i2c_algo_dp_aux_transaction(adapter, mode, 0, NULL);
+ return ret;
+}
+
+/*
+ * Stop the I2C transaction. This closes out the link, sending
+ * a bare address packet with the MOT bit turned off
+ */
+static void
+i2c_algo_dp_aux_stop(struct i2c_adapter *adapter, bool reading)
+{
+ struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+ int mode = MODE_I2C_STOP;
+
+ if (reading)
+ mode |= MODE_I2C_READ;
+ else
+ mode |= MODE_I2C_WRITE;
+ if (algo_data->running) {
+ (void) i2c_algo_dp_aux_transaction(adapter, mode, 0, NULL);
+ algo_data->running = false;
+ }
+}
+
+/*
+ * Write a single byte to the current I2C address, the
+ * the I2C link must be running or this returns -EIO
+ */
+static int
+i2c_algo_dp_aux_put_byte(struct i2c_adapter *adapter, u8 byte)
+{
+ struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+ int ret;
+
+ if (!algo_data->running)
+ return -EIO;
+
+ ret = i2c_algo_dp_aux_transaction(adapter, MODE_I2C_WRITE, byte, NULL);
+ return ret;
+}
+
+/*
+ * Read a single byte from the current I2C address, the
+ * I2C link must be running or this returns -EIO
+ */
+static int
+i2c_algo_dp_aux_get_byte(struct i2c_adapter *adapter, u8 *byte_ret)
+{
+ struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+ int ret;
+
+ if (!algo_data->running)
+ return -EIO;
+
+ ret = i2c_algo_dp_aux_transaction(adapter, MODE_I2C_READ, 0, byte_ret);
+ return ret;
+}
+
+static int
+i2c_algo_dp_aux_xfer(struct i2c_adapter *adapter,
+ struct i2c_msg *msgs,
+ int num)
+{
+ int ret = 0;
+ bool reading = false;
+ int m;
+ int b;
+
+ for (m = 0; m < num; m++) {
+ u16 len = msgs[m].len;
+ u8 *buf = msgs[m].buf;
+ reading = (msgs[m].flags & I2C_M_RD) != 0;
+ ret = i2c_algo_dp_aux_address(adapter, msgs[m].addr, reading);
+ if (ret < 0)
+ break;
+ if (reading) {
+ for (b = 0; b < len; b++) {
+ ret = i2c_algo_dp_aux_get_byte(adapter, &buf[b]);
+ if (ret < 0)
+ break;
+ }
+ } else {
+ for (b = 0; b < len; b++) {
+ ret = i2c_algo_dp_aux_put_byte(adapter, buf[b]);
+ if (ret < 0)
+ break;
+ }
+ }
+ if (ret < 0)
+ break;
+ }
+ if (ret >= 0)
+ ret = num;
+ i2c_algo_dp_aux_stop(adapter, reading);
+ DRM_DEBUG_KMS("dp_aux_xfer return %d\n", ret);
+ return ret;
+}
+
+static u32
+i2c_algo_dp_aux_functionality(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL |
+ I2C_FUNC_SMBUS_READ_BLOCK_DATA |
+ I2C_FUNC_SMBUS_BLOCK_PROC_CALL |
+ I2C_FUNC_10BIT_ADDR;
+}
+
+static const struct i2c_algorithm i2c_dp_aux_algo = {
+ .master_xfer = i2c_algo_dp_aux_xfer,
+ .functionality = i2c_algo_dp_aux_functionality,
+};
+
+static void
+i2c_dp_aux_reset_bus(struct i2c_adapter *adapter)
+{
+ (void) i2c_algo_dp_aux_address(adapter, 0, false);
+ (void) i2c_algo_dp_aux_stop(adapter, false);
+
+}
+
+static int
+i2c_dp_aux_prepare_bus(struct i2c_adapter *adapter)
+{
+ adapter->algo = &i2c_dp_aux_algo;
+ adapter->retries = 3;
+ i2c_dp_aux_reset_bus(adapter);
+ return 0;
+}
+
+int
+i2c_dp_aux_add_bus(struct i2c_adapter *adapter)
+{
+ int error;
+
+ error = i2c_dp_aux_prepare_bus(adapter);
+ if (error)
+ return error;
+ error = i2c_add_adapter(adapter);
+ return error;
+}
+EXPORT_SYMBOL(i2c_dp_aux_add_bus);
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
new file mode 100644
index 0000000..9238de4
--- /dev/null
+++ b/drivers/gpu/drm/drm_drv.c
@@ -0,0 +1,496 @@
+/**
+ * \file drm_drv.c
+ * Generic driver template
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ *
+ * To use this template, you must at least define the following (samples
+ * given for the MGA driver):
+ *
+ * \code
+ * #define DRIVER_AUTHOR "VA Linux Systems, Inc."
+ *
+ * #define DRIVER_NAME "mga"
+ * #define DRIVER_DESC "Matrox G200/G400"
+ * #define DRIVER_DATE "20001127"
+ *
+ * #define drm_x mga_##x
+ * \endcode
+ */
+
+/*
+ * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+#include "drmP.h"
+#include "drm_core.h"
+
+
+static int drm_version(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+#define DRM_IOCTL_DEF(ioctl, _func, _flags) \
+ [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, .cmd_drv = 0}
+
+/** Ioctl table */
+static struct drm_ioctl_desc drm_ioctls[] = {
+ DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
+ DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH),
+ /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */
+ DRM_IOCTL_DEF(DRM_IOCTL_DMA, NULL, DRM_AUTH),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+#if __OS_HAS_AGP
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+#endif
+
+ DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, DRM_UNLOCKED),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_PRIME_HANDLE_TO_FD, drm_prime_handle_to_fd_ioctl, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_PRIME_FD_TO_HANDLE, drm_prime_fd_to_handle_ioctl, DRM_AUTH|DRM_UNLOCKED),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANE, drm_mode_getplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPLANE, drm_mode_setplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_MAP_DUMB, drm_mode_mmap_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROY_DUMB, drm_mode_destroy_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_GETPROPERTIES, drm_mode_obj_get_properties_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_SETPROPERTY, drm_mode_obj_set_property_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+};
+
+#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls )
+
+/**
+ * Take down the DRM device.
+ *
+ * \param dev DRM device structure.
+ *
+ * Frees every resource in \p dev.
+ *
+ * \sa drm_device
+ */
+int drm_lastclose(struct drm_device * dev)
+{
+ struct drm_vma_entry *vma, *vma_temp;
+
+ DRM_DEBUG("\n");
+
+ if (dev->driver->lastclose)
+ dev->driver->lastclose(dev);
+ DRM_DEBUG("driver lastclose completed\n");
+
+ if (dev->irq_enabled && !drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_irq_uninstall(dev);
+
+ mutex_lock(&dev->struct_mutex);
+
+ /* Clear AGP information */
+ if (drm_core_has_AGP(dev) && dev->agp &&
+ !drm_core_check_feature(dev, DRIVER_MODESET)) {
+ struct drm_agp_mem *entry, *tempe;
+
+ /* Remove AGP resources, but leave dev->agp
+ intact until drv_cleanup is called. */
+ list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) {
+ if (entry->bound)
+ drm_unbind_agp(entry->memory);
+ drm_free_agp(entry->memory, entry->pages);
+ kfree(entry);
+ }
+ INIT_LIST_HEAD(&dev->agp->memory);
+
+ if (dev->agp->acquired)
+ drm_agp_release(dev);
+
+ dev->agp->acquired = 0;
+ dev->agp->enabled = 0;
+ }
+ if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg &&
+ !drm_core_check_feature(dev, DRIVER_MODESET)) {
+ drm_sg_cleanup(dev->sg);
+ dev->sg = NULL;
+ }
+
+ /* Clear vma list (only built for debugging) */
+ list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) {
+ list_del(&vma->head);
+ kfree(vma);
+ }
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+ !drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_dma_takedown(dev);
+
+ dev->dev_mapping = NULL;
+ mutex_unlock(&dev->struct_mutex);
+
+ DRM_DEBUG("lastclose completed\n");
+ return 0;
+}
+
+/** File operations structure */
+static const struct file_operations drm_stub_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_stub_open,
+ .llseek = noop_llseek,
+};
+
+static int __init drm_core_init(void)
+{
+ int ret = -ENOMEM;
+
+ drm_global_init();
+ idr_init(&drm_minors_idr);
+
+ if (register_chrdev(DRM_MAJOR, "drm", &drm_stub_fops))
+ goto err_p1;
+
+ drm_class = drm_sysfs_create(THIS_MODULE, "drm");
+ if (IS_ERR(drm_class)) {
+ printk(KERN_ERR "DRM: Error creating drm class.\n");
+ ret = PTR_ERR(drm_class);
+ goto err_p2;
+ }
+
+ drm_proc_root = proc_mkdir("dri", NULL);
+ if (!drm_proc_root) {
+ DRM_ERROR("Cannot create /proc/dri\n");
+ ret = -1;
+ goto err_p3;
+ }
+
+ drm_debugfs_root = debugfs_create_dir("dri", NULL);
+ if (!drm_debugfs_root) {
+ DRM_ERROR("Cannot create /sys/kernel/debug/dri\n");
+ ret = -1;
+ goto err_p3;
+ }
+
+ DRM_INFO("Initialized %s %d.%d.%d %s\n",
+ CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
+ return 0;
+err_p3:
+ drm_sysfs_destroy();
+err_p2:
+ unregister_chrdev(DRM_MAJOR, "drm");
+
+ idr_destroy(&drm_minors_idr);
+err_p1:
+ return ret;
+}
+
+static void __exit drm_core_exit(void)
+{
+ remove_proc_entry("dri", NULL);
+ debugfs_remove(drm_debugfs_root);
+ drm_sysfs_destroy();
+
+ unregister_chrdev(DRM_MAJOR, "drm");
+
+ idr_remove_all(&drm_minors_idr);
+ idr_destroy(&drm_minors_idr);
+}
+
+module_init(drm_core_init);
+module_exit(drm_core_exit);
+
+/**
+ * Copy and IOCTL return string to user space
+ */
+static int drm_copy_field(char *buf, size_t *buf_len, const char *value)
+{
+ int len;
+
+ /* don't overflow userbuf */
+ len = strlen(value);
+ if (len > *buf_len)
+ len = *buf_len;
+
+ /* let userspace know exact length of driver value (which could be
+ * larger than the userspace-supplied buffer) */
+ *buf_len = strlen(value);
+
+ /* finally, try filling in the userbuf */
+ if (len && buf)
+ if (copy_to_user(buf, value, len))
+ return -EFAULT;
+ return 0;
+}
+
+/**
+ * Get version information
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_version structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Fills in the version information in \p arg.
+ */
+static int drm_version(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_version *version = data;
+ int err;
+
+ version->version_major = dev->driver->major;
+ version->version_minor = dev->driver->minor;
+ version->version_patchlevel = dev->driver->patchlevel;
+ err = drm_copy_field(version->name, &version->name_len,
+ dev->driver->name);
+ if (!err)
+ err = drm_copy_field(version->date, &version->date_len,
+ dev->driver->date);
+ if (!err)
+ err = drm_copy_field(version->desc, &version->desc_len,
+ dev->driver->desc);
+
+ return err;
+}
+
+/**
+ * Called whenever a process performs an ioctl on /dev/drm.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument.
+ * \return zero on success or negative number on failure.
+ *
+ * Looks up the ioctl function in the ::ioctls table, checking for root
+ * previleges if so required, and dispatches to the respective function.
+ */
+long drm_ioctl(struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_device *dev;
+ struct drm_ioctl_desc *ioctl;
+ drm_ioctl_t *func;
+ unsigned int nr = DRM_IOCTL_NR(cmd);
+ int retcode = -EINVAL;
+ char stack_kdata[128];
+ char *kdata = NULL;
+ unsigned int usize, asize;
+
+ dev = file_priv->minor->dev;
+
+ if (drm_device_is_unplugged(dev))
+ return -ENODEV;
+
+ atomic_inc(&dev->ioctl_count);
+ atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
+ ++file_priv->ioctl_count;
+
+ DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n",
+ task_pid_nr(current), cmd, nr,
+ (long)old_encode_dev(file_priv->minor->device),
+ file_priv->authenticated);
+
+ if ((nr >= DRM_CORE_IOCTL_COUNT) &&
+ ((nr < DRM_COMMAND_BASE) || (nr >= DRM_COMMAND_END)))
+ goto err_i1;
+ if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) &&
+ (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
+ u32 drv_size;
+ ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE];
+ drv_size = _IOC_SIZE(ioctl->cmd_drv);
+ usize = asize = _IOC_SIZE(cmd);
+ if (drv_size > asize)
+ asize = drv_size;
+ }
+ else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) {
+ ioctl = &drm_ioctls[nr];
+ cmd = ioctl->cmd;
+ usize = asize = _IOC_SIZE(cmd);
+ } else
+ goto err_i1;
+
+ /* Do not trust userspace, use our own definition */
+ func = ioctl->func;
+ /* is there a local override? */
+ if ((nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_ioctl)
+ func = dev->driver->dma_ioctl;
+
+ if (!func) {
+ DRM_DEBUG("no function\n");
+ retcode = -EINVAL;
+ } else if (((ioctl->flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)) ||
+ ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) ||
+ ((ioctl->flags & DRM_MASTER) && !file_priv->is_master) ||
+ (!(ioctl->flags & DRM_CONTROL_ALLOW) && (file_priv->minor->type == DRM_MINOR_CONTROL))) {
+ retcode = -EACCES;
+ } else {
+ if (cmd & (IOC_IN | IOC_OUT)) {
+ if (asize <= sizeof(stack_kdata)) {
+ kdata = stack_kdata;
+ } else {
+ kdata = kmalloc(asize, GFP_KERNEL);
+ if (!kdata) {
+ retcode = -ENOMEM;
+ goto err_i1;
+ }
+ }
+ if (asize > usize)
+ memset(kdata + usize, 0, asize - usize);
+ }
+
+ if (cmd & IOC_IN) {
+ if (copy_from_user(kdata, (void __user *)arg,
+ usize) != 0) {
+ retcode = -EFAULT;
+ goto err_i1;
+ }
+ } else
+ memset(kdata, 0, usize);
+
+ if (ioctl->flags & DRM_UNLOCKED)
+ retcode = func(dev, kdata, file_priv);
+ else {
+ mutex_lock(&drm_global_mutex);
+ retcode = func(dev, kdata, file_priv);
+ mutex_unlock(&drm_global_mutex);
+ }
+
+ if (cmd & IOC_OUT) {
+ if (copy_to_user((void __user *)arg, kdata,
+ usize) != 0)
+ retcode = -EFAULT;
+ }
+ }
+
+ err_i1:
+ if (kdata != stack_kdata)
+ kfree(kdata);
+ atomic_dec(&dev->ioctl_count);
+ if (retcode)
+ DRM_DEBUG("ret = %d\n", retcode);
+ return retcode;
+}
+
+EXPORT_SYMBOL(drm_ioctl);
+
+struct drm_local_map *drm_getsarea(struct drm_device *dev)
+{
+ struct drm_map_list *entry;
+
+ list_for_each_entry(entry, &dev->maplist, head) {
+ if (entry->map && entry->map->type == _DRM_SHM &&
+ (entry->map->flags & _DRM_CONTAINS_LOCK)) {
+ return entry->map;
+ }
+ }
+ return NULL;
+}
+EXPORT_SYMBOL(drm_getsarea);
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
new file mode 100644
index 0000000..b7ee230
--- /dev/null
+++ b/drivers/gpu/drm/drm_edid.c
@@ -0,0 +1,1985 @@
+/*
+ * Copyright (c) 2006 Luc Verhaegen (quirks list)
+ * Copyright (c) 2007-2008 Intel Corporation
+ * Jesse Barnes <jesse.barnes@intel.com>
+ * Copyright 2010 Red Hat, Inc.
+ *
+ * DDC probing routines (drm_ddc_read & drm_do_probe_ddc_edid) originally from
+ * FB layer.
+ * Copyright (C) 2006 Dennis Munsie <dmunsie@cecropia.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include "drmP.h"
+#include "drm_edid.h"
+#include "drm_edid_modes.h"
+
+#define version_greater(edid, maj, min) \
+ (((edid)->version > (maj)) || \
+ ((edid)->version == (maj) && (edid)->revision > (min)))
+
+#define EDID_EST_TIMINGS 16
+#define EDID_STD_TIMINGS 8
+#define EDID_DETAILED_TIMINGS 4
+
+/*
+ * EDID blocks out in the wild have a variety of bugs, try to collect
+ * them here (note that userspace may work around broken monitors first,
+ * but fixes should make their way here so that the kernel "just works"
+ * on as many displays as possible).
+ */
+
+/* First detailed mode wrong, use largest 60Hz mode */
+#define EDID_QUIRK_PREFER_LARGE_60 (1 << 0)
+/* Reported 135MHz pixel clock is too high, needs adjustment */
+#define EDID_QUIRK_135_CLOCK_TOO_HIGH (1 << 1)
+/* Prefer the largest mode at 75 Hz */
+#define EDID_QUIRK_PREFER_LARGE_75 (1 << 2)
+/* Detail timing is in cm not mm */
+#define EDID_QUIRK_DETAILED_IN_CM (1 << 3)
+/* Detailed timing descriptors have bogus size values, so just take the
+ * maximum size and use that.
+ */
+#define EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE (1 << 4)
+/* Monitor forgot to set the first detailed is preferred bit. */
+#define EDID_QUIRK_FIRST_DETAILED_PREFERRED (1 << 5)
+/* use +hsync +vsync for detailed mode */
+#define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6)
+/* Force reduced-blanking timings for detailed modes */
+#define EDID_QUIRK_FORCE_REDUCED_BLANKING (1 << 7)
+
+struct detailed_mode_closure {
+ struct drm_connector *connector;
+ struct edid *edid;
+ bool preferred;
+ u32 quirks;
+ int modes;
+};
+
+#define LEVEL_DMT 0
+#define LEVEL_GTF 1
+#define LEVEL_GTF2 2
+#define LEVEL_CVT 3
+
+static struct edid_quirk {
+ char vendor[4];
+ int product_id;
+ u32 quirks;
+} edid_quirk_list[] = {
+ /* ASUS VW222S */
+ { "ACI", 0x22a2, EDID_QUIRK_FORCE_REDUCED_BLANKING },
+
+ /* Acer AL1706 */
+ { "ACR", 44358, EDID_QUIRK_PREFER_LARGE_60 },
+ /* Acer F51 */
+ { "API", 0x7602, EDID_QUIRK_PREFER_LARGE_60 },
+ /* Unknown Acer */
+ { "ACR", 2423, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
+
+ /* Belinea 10 15 55 */
+ { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
+ { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
+
+ /* Envision Peripherals, Inc. EN-7100e */
+ { "EPI", 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH },
+ /* Envision EN2028 */
+ { "EPI", 8232, EDID_QUIRK_PREFER_LARGE_60 },
+
+ /* Funai Electronics PM36B */
+ { "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 |
+ EDID_QUIRK_DETAILED_IN_CM },
+
+ /* LG Philips LCD LP154W01-A5 */
+ { "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
+ { "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
+
+ /* Philips 107p5 CRT */
+ { "PHL", 57364, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
+
+ /* Proview AY765C */
+ { "PTS", 765, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
+
+ /* Samsung SyncMaster 205BW. Note: irony */
+ { "SAM", 541, EDID_QUIRK_DETAILED_SYNC_PP },
+ /* Samsung SyncMaster 22[5-6]BW */
+ { "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 },
+ { "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
+
+ /* ViewSonic VA2026w */
+ { "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING },
+};
+
+/*** DDC fetch and block validation ***/
+
+static const u8 edid_header[] = {
+ 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
+};
+
+ /*
+ * Sanity check the header of the base EDID block. Return 8 if the header
+ * is perfect, down to 0 if it's totally wrong.
+ */
+int drm_edid_header_is_valid(const u8 *raw_edid)
+{
+ int i, score = 0;
+
+ for (i = 0; i < sizeof(edid_header); i++)
+ if (raw_edid[i] == edid_header[i])
+ score++;
+
+ return score;
+}
+EXPORT_SYMBOL(drm_edid_header_is_valid);
+
+static int edid_fixup __read_mostly = 6;
+module_param_named(edid_fixup, edid_fixup, int, 0400);
+MODULE_PARM_DESC(edid_fixup,
+ "Minimum number of valid EDID header bytes (0-8, default 6)");
+
+/*
+ * Sanity check the EDID block (base or extension). Return 0 if the block
+ * doesn't check out, or 1 if it's valid.
+ */
+bool drm_edid_block_valid(u8 *raw_edid, int block)
+{
+ int i;
+ u8 csum = 0;
+ struct edid *edid = (struct edid *)raw_edid;
+
+ if (edid_fixup > 8 || edid_fixup < 0)
+ edid_fixup = 6;
+
+ if (block == 0) {
+ int score = drm_edid_header_is_valid(raw_edid);
+ if (score == 8) ;
+ else if (score >= edid_fixup) {
+ DRM_DEBUG("Fixing EDID header, your hardware may be failing\n");
+ memcpy(raw_edid, edid_header, sizeof(edid_header));
+ } else {
+ goto bad;
+ }
+ }
+
+ for (i = 0; i < EDID_LENGTH; i++)
+ csum += raw_edid[i];
+ if (csum) {
+ DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);
+
+ /* allow CEA to slide through, switches mangle this */
+ if (raw_edid[0] != 0x02)
+ goto bad;
+ }
+
+ /* per-block-type checks */
+ switch (raw_edid[0]) {
+ case 0: /* base */
+ if (edid->version != 1) {
+ DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);
+ goto bad;
+ }
+
+ if (edid->revision > 4)
+ DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");
+ break;
+
+ default:
+ break;
+ }
+
+ return 1;
+
+bad:
+ if (raw_edid) {
+ printk(KERN_ERR "Raw EDID:\n");
+ print_hex_dump(KERN_ERR, " \t", DUMP_PREFIX_NONE, 16, 1,
+ raw_edid, EDID_LENGTH, false);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_edid_block_valid);
+
+/**
+ * drm_edid_is_valid - sanity check EDID data
+ * @edid: EDID data
+ *
+ * Sanity-check an entire EDID record (including extensions)
+ */
+bool drm_edid_is_valid(struct edid *edid)
+{
+ int i;
+ u8 *raw = (u8 *)edid;
+
+ if (!edid)
+ return false;
+
+ for (i = 0; i <= edid->extensions; i++)
+ if (!drm_edid_block_valid(raw + i * EDID_LENGTH, i))
+ return false;
+
+ return true;
+}
+EXPORT_SYMBOL(drm_edid_is_valid);
+
+#define DDC_SEGMENT_ADDR 0x30
+/**
+ * Get EDID information via I2C.
+ *
+ * \param adapter : i2c device adaptor
+ * \param buf : EDID data buffer to be filled
+ * \param len : EDID data buffer length
+ * \return 0 on success or -1 on failure.
+ *
+ * Try to fetch EDID information by calling i2c driver function.
+ */
+static int
+drm_do_probe_ddc_edid(struct i2c_adapter *adapter, unsigned char *buf,
+ int block, int len)
+{
+ unsigned char start = block * EDID_LENGTH;
+ int ret, retries = 5;
+
+ /* The core i2c driver will automatically retry the transfer if the
+ * adapter reports EAGAIN. However, we find that bit-banging transfers
+ * are susceptible to errors under a heavily loaded machine and
+ * generate spurious NAKs and timeouts. Retrying the transfer
+ * of the individual block a few times seems to overcome this.
+ */
+ do {
+ struct i2c_msg msgs[] = {
+ {
+ .addr = DDC_ADDR,
+ .flags = 0,
+ .len = 1,
+ .buf = &start,
+ }, {
+ .addr = DDC_ADDR,
+ .flags = I2C_M_RD,
+ .len = len,
+ .buf = buf,
+ }
+ };
+ ret = i2c_transfer(adapter, msgs, 2);
+ if (ret == -ENXIO) {
+ DRM_DEBUG_KMS("drm: skipping non-existent adapter %s\n",
+ adapter->name);
+ break;
+ }
+ } while (ret != 2 && --retries);
+
+ return ret == 2 ? 0 : -1;
+}
+
+static bool drm_edid_is_zero(u8 *in_edid, int length)
+{
+ int i;
+ u32 *raw_edid = (u32 *)in_edid;
+
+ for (i = 0; i < length / 4; i++)
+ if (*(raw_edid + i) != 0)
+ return false;
+ return true;
+}
+
+static u8 *
+drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
+{
+ int i, j = 0, valid_extensions = 0;
+ u8 *block, *new;
+
+ if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)
+ return NULL;
+
+ /* base block fetch */
+ for (i = 0; i < 4; i++) {
+ if (drm_do_probe_ddc_edid(adapter, block, 0, EDID_LENGTH))
+ goto out;
+ if (drm_edid_block_valid(block, 0))
+ break;
+ if (i == 0 && drm_edid_is_zero(block, EDID_LENGTH)) {
+ connector->null_edid_counter++;
+ goto carp;
+ }
+ }
+ if (i == 4)
+ goto carp;
+
+ /* if there's no extensions, we're done */
+ if (block[0x7e] == 0)
+ return block;
+
+ new = krealloc(block, (block[0x7e] + 1) * EDID_LENGTH, GFP_KERNEL);
+ if (!new)
+ goto out;
+ block = new;
+
+ for (j = 1; j <= block[0x7e]; j++) {
+ for (i = 0; i < 4; i++) {
+ if (drm_do_probe_ddc_edid(adapter,
+ block + (valid_extensions + 1) * EDID_LENGTH,
+ j, EDID_LENGTH))
+ goto out;
+ if (drm_edid_block_valid(block + (valid_extensions + 1) * EDID_LENGTH, j)) {
+ valid_extensions++;
+ break;
+ }
+ }
+ if (i == 4)
+ dev_warn(connector->dev->dev,
+ "%s: Ignoring invalid EDID block %d.\n",
+ drm_get_connector_name(connector), j);
+ }
+
+ if (valid_extensions != block[0x7e]) {
+ block[EDID_LENGTH-1] += block[0x7e] - valid_extensions;
+ block[0x7e] = valid_extensions;
+ new = krealloc(block, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL);
+ if (!new)
+ goto out;
+ block = new;
+ }
+
+ return block;
+
+carp:
+ dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n",
+ drm_get_connector_name(connector), j);
+
+out:
+ kfree(block);
+ return NULL;
+}
+
+/**
+ * Probe DDC presence.
+ *
+ * \param adapter : i2c device adaptor
+ * \return 1 on success
+ */
+static bool
+drm_probe_ddc(struct i2c_adapter *adapter)
+{
+ unsigned char out;
+
+ return (drm_do_probe_ddc_edid(adapter, &out, 0, 1) == 0);
+}
+
+/**
+ * drm_get_edid - get EDID data, if available
+ * @connector: connector we're probing
+ * @adapter: i2c adapter to use for DDC
+ *
+ * Poke the given i2c channel to grab EDID data if possible. If found,
+ * attach it to the connector.
+ *
+ * Return edid data or NULL if we couldn't find any.
+ */
+struct edid *drm_get_edid(struct drm_connector *connector,
+ struct i2c_adapter *adapter)
+{
+ struct edid *edid = NULL;
+
+ if (drm_probe_ddc(adapter))
+ edid = (struct edid *)drm_do_get_edid(connector, adapter);
+
+ connector->display_info.raw_edid = (char *)edid;
+
+ return edid;
+
+}
+EXPORT_SYMBOL(drm_get_edid);
+
+/*** EDID parsing ***/
+
+/**
+ * edid_vendor - match a string against EDID's obfuscated vendor field
+ * @edid: EDID to match
+ * @vendor: vendor string
+ *
+ * Returns true if @vendor is in @edid, false otherwise
+ */
+static bool edid_vendor(struct edid *edid, char *vendor)
+{
+ char edid_vendor[3];
+
+ edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';
+ edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |
+ ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';
+ edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';
+
+ return !strncmp(edid_vendor, vendor, 3);
+}
+
+/**
+ * edid_get_quirks - return quirk flags for a given EDID
+ * @edid: EDID to process
+ *
+ * This tells subsequent routines what fixes they need to apply.
+ */
+static u32 edid_get_quirks(struct edid *edid)
+{
+ struct edid_quirk *quirk;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
+ quirk = &edid_quirk_list[i];
+
+ if (edid_vendor(edid, quirk->vendor) &&
+ (EDID_PRODUCT_ID(edid) == quirk->product_id))
+ return quirk->quirks;
+ }
+
+ return 0;
+}
+
+#define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay)
+#define MODE_REFRESH_DIFF(m,r) (abs((m)->vrefresh - target_refresh))
+
+/**
+ * edid_fixup_preferred - set preferred modes based on quirk list
+ * @connector: has mode list to fix up
+ * @quirks: quirks list
+ *
+ * Walk the mode list for @connector, clearing the preferred status
+ * on existing modes and setting it anew for the right mode ala @quirks.
+ */
+static void edid_fixup_preferred(struct drm_connector *connector,
+ u32 quirks)
+{
+ struct drm_display_mode *t, *cur_mode, *preferred_mode;
+ int target_refresh = 0;
+
+ if (list_empty(&connector->probed_modes))
+ return;
+
+ if (quirks & EDID_QUIRK_PREFER_LARGE_60)
+ target_refresh = 60;
+ if (quirks & EDID_QUIRK_PREFER_LARGE_75)
+ target_refresh = 75;
+
+ preferred_mode = list_first_entry(&connector->probed_modes,
+ struct drm_display_mode, head);
+
+ list_for_each_entry_safe(cur_mode, t, &connector->probed_modes, head) {
+ cur_mode->type &= ~DRM_MODE_TYPE_PREFERRED;
+
+ if (cur_mode == preferred_mode)
+ continue;
+
+ /* Largest mode is preferred */
+ if (MODE_SIZE(cur_mode) > MODE_SIZE(preferred_mode))
+ preferred_mode = cur_mode;
+
+ /* At a given size, try to get closest to target refresh */
+ if ((MODE_SIZE(cur_mode) == MODE_SIZE(preferred_mode)) &&
+ MODE_REFRESH_DIFF(cur_mode, target_refresh) <
+ MODE_REFRESH_DIFF(preferred_mode, target_refresh)) {
+ preferred_mode = cur_mode;
+ }
+ }
+
+ preferred_mode->type |= DRM_MODE_TYPE_PREFERRED;
+}
+
+static bool
+mode_is_rb(const struct drm_display_mode *mode)
+{
+ return (mode->htotal - mode->hdisplay == 160) &&
+ (mode->hsync_end - mode->hdisplay == 80) &&
+ (mode->hsync_end - mode->hsync_start == 32) &&
+ (mode->vsync_start - mode->vdisplay == 3);
+}
+
+/*
+ * drm_mode_find_dmt - Create a copy of a mode if present in DMT
+ * @dev: Device to duplicate against
+ * @hsize: Mode width
+ * @vsize: Mode height
+ * @fresh: Mode refresh rate
+ * @rb: Mode reduced-blanking-ness
+ *
+ * Walk the DMT mode list looking for a match for the given parameters.
+ * Return a newly allocated copy of the mode, or NULL if not found.
+ */
+struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
+ int hsize, int vsize, int fresh,
+ bool rb)
+{
+ int i;
+
+ for (i = 0; i < drm_num_dmt_modes; i++) {
+ const struct drm_display_mode *ptr = &drm_dmt_modes[i];
+ if (hsize != ptr->hdisplay)
+ continue;
+ if (vsize != ptr->vdisplay)
+ continue;
+ if (fresh != drm_mode_vrefresh(ptr))
+ continue;
+ if (rb != mode_is_rb(ptr))
+ continue;
+
+ return drm_mode_duplicate(dev, ptr);
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL(drm_mode_find_dmt);
+
+typedef void detailed_cb(struct detailed_timing *timing, void *closure);
+
+static void
+cea_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
+{
+ int i, n = 0;
+ u8 d = ext[0x02];
+ u8 *det_base = ext + d;
+
+ n = (127 - d) / 18;
+ for (i = 0; i < n; i++)
+ cb((struct detailed_timing *)(det_base + 18 * i), closure);
+}
+
+static void
+vtb_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
+{
+ unsigned int i, n = min((int)ext[0x02], 6);
+ u8 *det_base = ext + 5;
+
+ if (ext[0x01] != 1)
+ return; /* unknown version */
+
+ for (i = 0; i < n; i++)
+ cb((struct detailed_timing *)(det_base + 18 * i), closure);
+}
+
+static void
+drm_for_each_detailed_block(u8 *raw_edid, detailed_cb *cb, void *closure)
+{
+ int i;
+ struct edid *edid = (struct edid *)raw_edid;
+
+ if (edid == NULL)
+ return;
+
+ for (i = 0; i < EDID_DETAILED_TIMINGS; i++)
+ cb(&(edid->detailed_timings[i]), closure);
+
+ for (i = 1; i <= raw_edid[0x7e]; i++) {
+ u8 *ext = raw_edid + (i * EDID_LENGTH);
+ switch (*ext) {
+ case CEA_EXT:
+ cea_for_each_detailed_block(ext, cb, closure);
+ break;
+ case VTB_EXT:
+ vtb_for_each_detailed_block(ext, cb, closure);
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+static void
+is_rb(struct detailed_timing *t, void *data)
+{
+ u8 *r = (u8 *)t;
+ if (r[3] == EDID_DETAIL_MONITOR_RANGE)
+ if (r[15] & 0x10)
+ *(bool *)data = true;
+}
+
+/* EDID 1.4 defines this explicitly. For EDID 1.3, we guess, badly. */
+static bool
+drm_monitor_supports_rb(struct edid *edid)
+{
+ if (edid->revision >= 4) {
+ bool ret = false;
+ drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);
+ return ret;
+ }
+
+ return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);
+}
+
+static void
+find_gtf2(struct detailed_timing *t, void *data)
+{
+ u8 *r = (u8 *)t;
+ if (r[3] == EDID_DETAIL_MONITOR_RANGE && r[10] == 0x02)
+ *(u8 **)data = r;
+}
+
+/* Secondary GTF curve kicks in above some break frequency */
+static int
+drm_gtf2_hbreak(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? (r[12] * 2) : 0;
+}
+
+static int
+drm_gtf2_2c(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? r[13] : 0;
+}
+
+static int
+drm_gtf2_m(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? (r[15] << 8) + r[14] : 0;
+}
+
+static int
+drm_gtf2_k(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? r[16] : 0;
+}
+
+static int
+drm_gtf2_2j(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? r[17] : 0;
+}
+
+/**
+ * standard_timing_level - get std. timing level(CVT/GTF/DMT)
+ * @edid: EDID block to scan
+ */
+static int standard_timing_level(struct edid *edid)
+{
+ if (edid->revision >= 2) {
+ if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
+ return LEVEL_CVT;
+ if (drm_gtf2_hbreak(edid))
+ return LEVEL_GTF2;
+ return LEVEL_GTF;
+ }
+ return LEVEL_DMT;
+}
+
+/*
+ * 0 is reserved. The spec says 0x01 fill for unused timings. Some old
+ * monitors fill with ascii space (0x20) instead.
+ */
+static int
+bad_std_timing(u8 a, u8 b)
+{
+ return (a == 0x00 && b == 0x00) ||
+ (a == 0x01 && b == 0x01) ||
+ (a == 0x20 && b == 0x20);
+}
+
+/**
+ * drm_mode_std - convert standard mode info (width, height, refresh) into mode
+ * @t: standard timing params
+ * @timing_level: standard timing level
+ *
+ * Take the standard timing params (in this case width, aspect, and refresh)
+ * and convert them into a real mode using CVT/GTF/DMT.
+ */
+static struct drm_display_mode *
+drm_mode_std(struct drm_connector *connector, struct edid *edid,
+ struct std_timing *t, int revision)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_display_mode *m, *mode = NULL;
+ int hsize, vsize;
+ int vrefresh_rate;
+ unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)
+ >> EDID_TIMING_ASPECT_SHIFT;
+ unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
+ >> EDID_TIMING_VFREQ_SHIFT;
+ int timing_level = standard_timing_level(edid);
+
+ if (bad_std_timing(t->hsize, t->vfreq_aspect))
+ return NULL;
+
+ /* According to the EDID spec, the hdisplay = hsize * 8 + 248 */
+ hsize = t->hsize * 8 + 248;
+ /* vrefresh_rate = vfreq + 60 */
+ vrefresh_rate = vfreq + 60;
+ /* the vdisplay is calculated based on the aspect ratio */
+ if (aspect_ratio == 0) {
+ if (revision < 3)
+ vsize = hsize;
+ else
+ vsize = (hsize * 10) / 16;
+ } else if (aspect_ratio == 1)
+ vsize = (hsize * 3) / 4;
+ else if (aspect_ratio == 2)
+ vsize = (hsize * 4) / 5;
+ else
+ vsize = (hsize * 9) / 16;
+
+ /* HDTV hack, part 1 */
+ if (vrefresh_rate == 60 &&
+ ((hsize == 1360 && vsize == 765) ||
+ (hsize == 1368 && vsize == 769))) {
+ hsize = 1366;
+ vsize = 768;
+ }
+
+ /*
+ * If this connector already has a mode for this size and refresh
+ * rate (because it came from detailed or CVT info), use that
+ * instead. This way we don't have to guess at interlace or
+ * reduced blanking.
+ */
+ list_for_each_entry(m, &connector->probed_modes, head)
+ if (m->hdisplay == hsize && m->vdisplay == vsize &&
+ drm_mode_vrefresh(m) == vrefresh_rate)
+ return NULL;
+
+ /* HDTV hack, part 2 */
+ if (hsize == 1366 && vsize == 768 && vrefresh_rate == 60) {
+ mode = drm_cvt_mode(dev, 1366, 768, vrefresh_rate, 0, 0,
+ false);
+ mode->hdisplay = 1366;
+ mode->hsync_start = mode->hsync_start - 1;
+ mode->hsync_end = mode->hsync_end - 1;
+ return mode;
+ }
+
+ /* check whether it can be found in default mode table */
+ if (drm_monitor_supports_rb(edid)) {
+ mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate,
+ true);
+ if (mode)
+ return mode;
+ }
+ mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate, false);
+ if (mode)
+ return mode;
+
+ /* okay, generate it */
+ switch (timing_level) {
+ case LEVEL_DMT:
+ break;
+ case LEVEL_GTF:
+ mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
+ break;
+ case LEVEL_GTF2:
+ /*
+ * This is potentially wrong if there's ever a monitor with
+ * more than one ranges section, each claiming a different
+ * secondary GTF curve. Please don't do that.
+ */
+ mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
+ if (!mode)
+ return NULL;
+ if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {
+ drm_mode_destroy(dev, mode);
+ mode = drm_gtf_mode_complex(dev, hsize, vsize,
+ vrefresh_rate, 0, 0,
+ drm_gtf2_m(edid),
+ drm_gtf2_2c(edid),
+ drm_gtf2_k(edid),
+ drm_gtf2_2j(edid));
+ }
+ break;
+ case LEVEL_CVT:
+ mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
+ false);
+ break;
+ }
+ return mode;
+}
+
+/*
+ * EDID is delightfully ambiguous about how interlaced modes are to be
+ * encoded. Our internal representation is of frame height, but some
+ * HDTV detailed timings are encoded as field height.
+ *
+ * The format list here is from CEA, in frame size. Technically we
+ * should be checking refresh rate too. Whatever.
+ */
+static void
+drm_mode_do_interlace_quirk(struct drm_display_mode *mode,
+ struct detailed_pixel_timing *pt)
+{
+ int i;
+ static const struct {
+ int w, h;
+ } cea_interlaced[] = {
+ { 1920, 1080 },
+ { 720, 480 },
+ { 1440, 480 },
+ { 2880, 480 },
+ { 720, 576 },
+ { 1440, 576 },
+ { 2880, 576 },
+ };
+
+ if (!(pt->misc & DRM_EDID_PT_INTERLACED))
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(cea_interlaced); i++) {
+ if ((mode->hdisplay == cea_interlaced[i].w) &&
+ (mode->vdisplay == cea_interlaced[i].h / 2)) {
+ mode->vdisplay *= 2;
+ mode->vsync_start *= 2;
+ mode->vsync_end *= 2;
+ mode->vtotal *= 2;
+ mode->vtotal |= 1;
+ }
+ }
+
+ mode->flags |= DRM_MODE_FLAG_INTERLACE;
+}
+
+/**
+ * drm_mode_detailed - create a new mode from an EDID detailed timing section
+ * @dev: DRM device (needed to create new mode)
+ * @edid: EDID block
+ * @timing: EDID detailed timing info
+ * @quirks: quirks to apply
+ *
+ * An EDID detailed timing block contains enough info for us to create and
+ * return a new struct drm_display_mode.
+ */
+static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
+ struct edid *edid,
+ struct detailed_timing *timing,
+ u32 quirks)
+{
+ struct drm_display_mode *mode;
+ struct detailed_pixel_timing *pt = &timing->data.pixel_data;
+ unsigned hactive = (pt->hactive_hblank_hi & 0xf0) << 4 | pt->hactive_lo;
+ unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo;
+ unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo;
+ unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;
+ unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;
+ unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo;
+ unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) >> 2 | pt->vsync_offset_pulse_width_lo >> 4;
+ unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf);
+
+ /* ignore tiny modes */
+ if (hactive < 64 || vactive < 64)
+ return NULL;
+
+ if (pt->misc & DRM_EDID_PT_STEREO) {
+ printk(KERN_WARNING "stereo mode not supported\n");
+ return NULL;
+ }
+ if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {
+ printk(KERN_WARNING "composite sync not supported\n");
+ }
+
+ /* it is incorrect if hsync/vsync width is zero */
+ if (!hsync_pulse_width || !vsync_pulse_width) {
+ DRM_DEBUG_KMS("Incorrect Detailed timing. "
+ "Wrong Hsync/Vsync pulse width\n");
+ return NULL;
+ }
+
+ if (quirks & EDID_QUIRK_FORCE_REDUCED_BLANKING) {
+ mode = drm_cvt_mode(dev, hactive, vactive, 60, true, false, false);
+ if (!mode)
+ return NULL;
+
+ goto set_size;
+ }
+
+ mode = drm_mode_create(dev);
+ if (!mode)
+ return NULL;
+
+ if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
+ timing->pixel_clock = cpu_to_le16(1088);
+
+ mode->clock = le16_to_cpu(timing->pixel_clock) * 10;
+
+ mode->hdisplay = hactive;
+ mode->hsync_start = mode->hdisplay + hsync_offset;
+ mode->hsync_end = mode->hsync_start + hsync_pulse_width;
+ mode->htotal = mode->hdisplay + hblank;
+
+ mode->vdisplay = vactive;
+ mode->vsync_start = mode->vdisplay + vsync_offset;
+ mode->vsync_end = mode->vsync_start + vsync_pulse_width;
+ mode->vtotal = mode->vdisplay + vblank;
+
+ /* Some EDIDs have bogus h/vtotal values */
+ if (mode->hsync_end > mode->htotal)
+ mode->htotal = mode->hsync_end + 1;
+ if (mode->vsync_end > mode->vtotal)
+ mode->vtotal = mode->vsync_end + 1;
+
+ drm_mode_do_interlace_quirk(mode, pt);
+
+ if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
+ pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
+ }
+
+ mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
+ DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
+ mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
+ DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
+
+set_size:
+ mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
+ mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
+
+ if (quirks & EDID_QUIRK_DETAILED_IN_CM) {
+ mode->width_mm *= 10;
+ mode->height_mm *= 10;
+ }
+
+ if (quirks & EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE) {
+ mode->width_mm = edid->width_cm * 10;
+ mode->height_mm = edid->height_cm * 10;
+ }
+
+ mode->type = DRM_MODE_TYPE_DRIVER;
+ drm_mode_set_name(mode);
+
+ return mode;
+}
+
+static bool
+mode_in_hsync_range(const struct drm_display_mode *mode,
+ struct edid *edid, u8 *t)
+{
+ int hsync, hmin, hmax;
+
+ hmin = t[7];
+ if (edid->revision >= 4)
+ hmin += ((t[4] & 0x04) ? 255 : 0);
+ hmax = t[8];
+ if (edid->revision >= 4)
+ hmax += ((t[4] & 0x08) ? 255 : 0);
+ hsync = drm_mode_hsync(mode);
+
+ return (hsync <= hmax && hsync >= hmin);
+}
+
+static bool
+mode_in_vsync_range(const struct drm_display_mode *mode,
+ struct edid *edid, u8 *t)
+{
+ int vsync, vmin, vmax;
+
+ vmin = t[5];
+ if (edid->revision >= 4)
+ vmin += ((t[4] & 0x01) ? 255 : 0);
+ vmax = t[6];
+ if (edid->revision >= 4)
+ vmax += ((t[4] & 0x02) ? 255 : 0);
+ vsync = drm_mode_vrefresh(mode);
+
+ return (vsync <= vmax && vsync >= vmin);
+}
+
+static u32
+range_pixel_clock(struct edid *edid, u8 *t)
+{
+ /* unspecified */
+ if (t[9] == 0 || t[9] == 255)
+ return 0;
+
+ /* 1.4 with CVT support gives us real precision, yay */
+ if (edid->revision >= 4 && t[10] == 0x04)
+ return (t[9] * 10000) - ((t[12] >> 2) * 250);
+
+ /* 1.3 is pathetic, so fuzz up a bit */
+ return t[9] * 10000 + 5001;
+}
+
+static bool
+mode_in_range(const struct drm_display_mode *mode, struct edid *edid,
+ struct detailed_timing *timing)
+{
+ u32 max_clock;
+ u8 *t = (u8 *)timing;
+
+ if (!mode_in_hsync_range(mode, edid, t))
+ return false;
+
+ if (!mode_in_vsync_range(mode, edid, t))
+ return false;
+
+ if ((max_clock = range_pixel_clock(edid, t)))
+ if (mode->clock > max_clock)
+ return false;
+
+ /* 1.4 max horizontal check */
+ if (edid->revision >= 4 && t[10] == 0x04)
+ if (t[13] && mode->hdisplay > 8 * (t[13] + (256 * (t[12]&0x3))))
+ return false;
+
+ if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid))
+ return false;
+
+ return true;
+}
+
+static bool valid_inferred_mode(const struct drm_connector *connector,
+ const struct drm_display_mode *mode)
+{
+ struct drm_display_mode *m;
+ bool ok = false;
+
+ list_for_each_entry(m, &connector->probed_modes, head) {
+ if (mode->hdisplay == m->hdisplay &&
+ mode->vdisplay == m->vdisplay &&
+ drm_mode_vrefresh(mode) == drm_mode_vrefresh(m))
+ return false; /* duplicated */
+ if (mode->hdisplay <= m->hdisplay &&
+ mode->vdisplay <= m->vdisplay)
+ ok = true;
+ }
+ return ok;
+}
+
+static int
+drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,
+ struct detailed_timing *timing)
+{
+ int i, modes = 0;
+ struct drm_display_mode *newmode;
+ struct drm_device *dev = connector->dev;
+
+ for (i = 0; i < drm_num_dmt_modes; i++) {
+ if (mode_in_range(drm_dmt_modes + i, edid, timing) &&
+ valid_inferred_mode(connector, drm_dmt_modes + i)) {
+ newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+ }
+
+ return modes;
+}
+
+/* fix up 1366x768 mode from 1368x768;
+ * GFT/CVT can't express 1366 width which isn't dividable by 8
+ */
+static void fixup_mode_1366x768(struct drm_display_mode *mode)
+{
+ if (mode->hdisplay == 1368 && mode->vdisplay == 768) {
+ mode->hdisplay = 1366;
+ mode->hsync_start--;
+ mode->hsync_end--;
+ drm_mode_set_name(mode);
+ }
+}
+
+static int
+drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,
+ struct detailed_timing *timing)
+{
+ int i, modes = 0;
+ struct drm_display_mode *newmode;
+ struct drm_device *dev = connector->dev;
+
+ for (i = 0; i < num_extra_modes; i++) {
+ const struct minimode *m = &extra_modes[i];
+ newmode = drm_gtf_mode(dev, m->w, m->h, m->r, 0, 0);
+ if (!newmode)
+ return modes;
+
+ fixup_mode_1366x768(newmode);
+ if (!mode_in_range(newmode, edid, timing) ||
+ !valid_inferred_mode(connector, newmode)) {
+ drm_mode_destroy(dev, newmode);
+ continue;
+ }
+
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+
+ return modes;
+}
+
+static int
+drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,
+ struct detailed_timing *timing)
+{
+ int i, modes = 0;
+ struct drm_display_mode *newmode;
+ struct drm_device *dev = connector->dev;
+ bool rb = drm_monitor_supports_rb(edid);
+
+ for (i = 0; i < num_extra_modes; i++) {
+ const struct minimode *m = &extra_modes[i];
+ newmode = drm_cvt_mode(dev, m->w, m->h, m->r, rb, 0, 0);
+ if (!newmode)
+ return modes;
+
+ fixup_mode_1366x768(newmode);
+ if (!mode_in_range(newmode, edid, timing) ||
+ !valid_inferred_mode(connector, newmode)) {
+ drm_mode_destroy(dev, newmode);
+ continue;
+ }
+
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+
+ return modes;
+}
+
+static void
+do_inferred_modes(struct detailed_timing *timing, void *c)
+{
+ struct detailed_mode_closure *closure = c;
+ struct detailed_non_pixel *data = &timing->data.other_data;
+ struct detailed_data_monitor_range *range = &data->data.range;
+
+ if (data->type != EDID_DETAIL_MONITOR_RANGE)
+ return;
+
+ closure->modes += drm_dmt_modes_for_range(closure->connector,
+ closure->edid,
+ timing);
+
+ if (!version_greater(closure->edid, 1, 1))
+ return; /* GTF not defined yet */
+
+ switch (range->flags) {
+ case 0x02: /* secondary gtf, XXX could do more */
+ case 0x00: /* default gtf */
+ closure->modes += drm_gtf_modes_for_range(closure->connector,
+ closure->edid,
+ timing);
+ break;
+ case 0x04: /* cvt, only in 1.4+ */
+ if (!version_greater(closure->edid, 1, 3))
+ break;
+
+ closure->modes += drm_cvt_modes_for_range(closure->connector,
+ closure->edid,
+ timing);
+ break;
+ case 0x01: /* just the ranges, no formula */
+ default:
+ break;
+ }
+}
+
+static int
+add_inferred_modes(struct drm_connector *connector, struct edid *edid)
+{
+ struct detailed_mode_closure closure = {
+ connector, edid, 0, 0, 0
+ };
+
+ if (version_greater(edid, 1, 0))
+ drm_for_each_detailed_block((u8 *)edid, do_inferred_modes,
+ &closure);
+
+ return closure.modes;
+}
+
+static int
+drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing)
+{
+ int i, j, m, modes = 0;
+ struct drm_display_mode *mode;
+ u8 *est = ((u8 *)timing) + 5;
+
+ for (i = 0; i < 6; i++) {
+ for (j = 7; j > 0; j--) {
+ m = (i * 8) + (7 - j);
+ if (m >= ARRAY_SIZE(est3_modes))
+ break;
+ if (est[i] & (1 << j)) {
+ mode = drm_mode_find_dmt(connector->dev,
+ est3_modes[m].w,
+ est3_modes[m].h,
+ est3_modes[m].r,
+ est3_modes[m].rb);
+ if (mode) {
+ drm_mode_probed_add(connector, mode);
+ modes++;
+ }
+ }
+ }
+ }
+
+ return modes;
+}
+
+static void
+do_established_modes(struct detailed_timing *timing, void *c)
+{
+ struct detailed_mode_closure *closure = c;
+ struct detailed_non_pixel *data = &timing->data.other_data;
+
+ if (data->type == EDID_DETAIL_EST_TIMINGS)
+ closure->modes += drm_est3_modes(closure->connector, timing);
+}
+
+/**
+ * add_established_modes - get est. modes from EDID and add them
+ * @edid: EDID block to scan
+ *
+ * Each EDID block contains a bitmap of the supported "established modes" list
+ * (defined above). Tease them out and add them to the global modes list.
+ */
+static int
+add_established_modes(struct drm_connector *connector, struct edid *edid)
+{
+ struct drm_device *dev = connector->dev;
+ unsigned long est_bits = edid->established_timings.t1 |
+ (edid->established_timings.t2 << 8) |
+ ((edid->established_timings.mfg_rsvd & 0x80) << 9);
+ int i, modes = 0;
+ struct detailed_mode_closure closure = {
+ connector, edid, 0, 0, 0
+ };
+
+ for (i = 0; i <= EDID_EST_TIMINGS; i++) {
+ if (est_bits & (1<<i)) {
+ struct drm_display_mode *newmode;
+ newmode = drm_mode_duplicate(dev, &edid_est_modes[i]);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+ }
+
+ if (version_greater(edid, 1, 0))
+ drm_for_each_detailed_block((u8 *)edid,
+ do_established_modes, &closure);
+
+ return modes + closure.modes;
+}
+
+static void
+do_standard_modes(struct detailed_timing *timing, void *c)
+{
+ struct detailed_mode_closure *closure = c;
+ struct detailed_non_pixel *data = &timing->data.other_data;
+ struct drm_connector *connector = closure->connector;
+ struct edid *edid = closure->edid;
+
+ if (data->type == EDID_DETAIL_STD_MODES) {
+ int i;
+ for (i = 0; i < 6; i++) {
+ struct std_timing *std;
+ struct drm_display_mode *newmode;
+
+ std = &data->data.timings[i];
+ newmode = drm_mode_std(connector, edid, std,
+ edid->revision);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ closure->modes++;
+ }
+ }
+ }
+}
+
+/**
+ * add_standard_modes - get std. modes from EDID and add them
+ * @edid: EDID block to scan
+ *
+ * Standard modes can be calculated using the appropriate standard (DMT,
+ * GTF or CVT. Grab them from @edid and add them to the list.
+ */
+static int
+add_standard_modes(struct drm_connector *connector, struct edid *edid)
+{
+ int i, modes = 0;
+ struct detailed_mode_closure closure = {
+ connector, edid, 0, 0, 0
+ };
+
+ for (i = 0; i < EDID_STD_TIMINGS; i++) {
+ struct drm_display_mode *newmode;
+
+ newmode = drm_mode_std(connector, edid,
+ &edid->standard_timings[i],
+ edid->revision);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+
+ if (version_greater(edid, 1, 0))
+ drm_for_each_detailed_block((u8 *)edid, do_standard_modes,
+ &closure);
+
+ /* XXX should also look for standard codes in VTB blocks */
+
+ return modes + closure.modes;
+}
+
+static int drm_cvt_modes(struct drm_connector *connector,
+ struct detailed_timing *timing)
+{
+ int i, j, modes = 0;
+ struct drm_display_mode *newmode;
+ struct drm_device *dev = connector->dev;
+ struct cvt_timing *cvt;
+ const int rates[] = { 60, 85, 75, 60, 50 };
+ const u8 empty[3] = { 0, 0, 0 };
+
+ for (i = 0; i < 4; i++) {
+ int uninitialized_var(width), height;
+ cvt = &(timing->data.other_data.data.cvt[i]);
+
+ if (!memcmp(cvt->code, empty, 3))
+ continue;
+
+ height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 4) + 1) * 2;
+ switch (cvt->code[1] & 0x0c) {
+ case 0x00:
+ width = height * 4 / 3;
+ break;
+ case 0x04:
+ width = height * 16 / 9;
+ break;
+ case 0x08:
+ width = height * 16 / 10;
+ break;
+ case 0x0c:
+ width = height * 15 / 9;
+ break;
+ }
+
+ for (j = 1; j < 5; j++) {
+ if (cvt->code[2] & (1 << j)) {
+ newmode = drm_cvt_mode(dev, width, height,
+ rates[j], j == 0,
+ false, false);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+ }
+ }
+
+ return modes;
+}
+
+static void
+do_cvt_mode(struct detailed_timing *timing, void *c)
+{
+ struct detailed_mode_closure *closure = c;
+ struct detailed_non_pixel *data = &timing->data.other_data;
+
+ if (data->type == EDID_DETAIL_CVT_3BYTE)
+ closure->modes += drm_cvt_modes(closure->connector, timing);
+}
+
+static int
+add_cvt_modes(struct drm_connector *connector, struct edid *edid)
+{
+ struct detailed_mode_closure closure = {
+ connector, edid, 0, 0, 0
+ };
+
+ if (version_greater(edid, 1, 2))
+ drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure);
+
+ /* XXX should also look for CVT codes in VTB blocks */
+
+ return closure.modes;
+}
+
+static void
+do_detailed_mode(struct detailed_timing *timing, void *c)
+{
+ struct detailed_mode_closure *closure = c;
+ struct drm_display_mode *newmode;
+
+ if (timing->pixel_clock) {
+ newmode = drm_mode_detailed(closure->connector->dev,
+ closure->edid, timing,
+ closure->quirks);
+ if (!newmode)
+ return;
+
+ if (closure->preferred)
+ newmode->type |= DRM_MODE_TYPE_PREFERRED;
+
+ drm_mode_probed_add(closure->connector, newmode);
+ closure->modes++;
+ closure->preferred = 0;
+ }
+}
+
+/*
+ * add_detailed_modes - Add modes from detailed timings
+ * @connector: attached connector
+ * @edid: EDID block to scan
+ * @quirks: quirks to apply
+ */
+static int
+add_detailed_modes(struct drm_connector *connector, struct edid *edid,
+ u32 quirks)
+{
+ struct detailed_mode_closure closure = {
+ connector,
+ edid,
+ 1,
+ quirks,
+ 0
+ };
+
+ if (closure.preferred && !version_greater(edid, 1, 3))
+ closure.preferred =
+ (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
+
+ drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure);
+
+ return closure.modes;
+}
+
+#define HDMI_IDENTIFIER 0x000C03
+#define AUDIO_BLOCK 0x01
+#define VIDEO_BLOCK 0x02
+#define VENDOR_BLOCK 0x03
+#define SPEAKER_BLOCK 0x04
+#define EDID_BASIC_AUDIO (1 << 6)
+#define EDID_CEA_YCRCB444 (1 << 5)
+#define EDID_CEA_YCRCB422 (1 << 4)
+
+/**
+ * Search EDID for CEA extension block.
+ */
+u8 *drm_find_cea_extension(struct edid *edid)
+{
+ u8 *edid_ext = NULL;
+ int i;
+
+ /* No EDID or EDID extensions */
+ if (edid == NULL || edid->extensions == 0)
+ return NULL;
+
+ /* Find CEA extension */
+ for (i = 0; i < edid->extensions; i++) {
+ edid_ext = (u8 *)edid + EDID_LENGTH * (i + 1);
+ if (edid_ext[0] == CEA_EXT)
+ break;
+ }
+
+ if (i == edid->extensions)
+ return NULL;
+
+ return edid_ext;
+}
+EXPORT_SYMBOL(drm_find_cea_extension);
+
+static int
+do_cea_modes (struct drm_connector *connector, u8 *db, u8 len)
+{
+ struct drm_device *dev = connector->dev;
+ u8 * mode, cea_mode;
+ int modes = 0;
+
+ for (mode = db; mode < db + len; mode++) {
+ cea_mode = (*mode & 127) - 1; /* CEA modes are numbered 1..127 */
+ if (cea_mode < drm_num_cea_modes) {
+ struct drm_display_mode *newmode;
+ newmode = drm_mode_duplicate(dev,
+ &edid_cea_modes[cea_mode]);
+ if (newmode) {
+ drm_mode_probed_add(connector, newmode);
+ modes++;
+ }
+ }
+ }
+
+ return modes;
+}
+
+static int
+add_cea_modes(struct drm_connector *connector, struct edid *edid)
+{
+ u8 * cea = drm_find_cea_extension(edid);
+ u8 * db, dbl;
+ int modes = 0;
+
+ if (cea && cea[1] >= 3) {
+ for (db = cea + 4; db < cea + cea[2]; db += dbl + 1) {
+ dbl = db[0] & 0x1f;
+ if (((db[0] & 0xe0) >> 5) == VIDEO_BLOCK)
+ modes += do_cea_modes (connector, db+1, dbl);
+ }
+ }
+
+ return modes;
+}
+
+static void
+parse_hdmi_vsdb(struct drm_connector *connector, uint8_t *db)
+{
+ connector->eld[5] |= (db[6] >> 7) << 1; /* Supports_AI */
+
+ connector->dvi_dual = db[6] & 1;
+ connector->max_tmds_clock = db[7] * 5;
+
+ connector->latency_present[0] = db[8] >> 7;
+ connector->latency_present[1] = (db[8] >> 6) & 1;
+ connector->video_latency[0] = db[9];
+ connector->audio_latency[0] = db[10];
+ connector->video_latency[1] = db[11];
+ connector->audio_latency[1] = db[12];
+
+ DRM_LOG_KMS("HDMI: DVI dual %d, "
+ "max TMDS clock %d, "
+ "latency present %d %d, "
+ "video latency %d %d, "
+ "audio latency %d %d\n",
+ connector->dvi_dual,
+ connector->max_tmds_clock,
+ (int) connector->latency_present[0],
+ (int) connector->latency_present[1],
+ connector->video_latency[0],
+ connector->video_latency[1],
+ connector->audio_latency[0],
+ connector->audio_latency[1]);
+}
+
+static void
+monitor_name(struct detailed_timing *t, void *data)
+{
+ if (t->data.other_data.type == EDID_DETAIL_MONITOR_NAME)
+ *(u8 **)data = t->data.other_data.data.str.str;
+}
+
+/**
+ * drm_edid_to_eld - build ELD from EDID
+ * @connector: connector corresponding to the HDMI/DP sink
+ * @edid: EDID to parse
+ *
+ * Fill the ELD (EDID-Like Data) buffer for passing to the audio driver.
+ * Some ELD fields are left to the graphics driver caller:
+ * - Conn_Type
+ * - HDCP
+ * - Port_ID
+ */
+void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)
+{
+ uint8_t *eld = connector->eld;
+ u8 *cea;
+ u8 *name;
+ u8 *db;
+ int sad_count = 0;
+ int mnl;
+ int dbl;
+
+ memset(eld, 0, sizeof(connector->eld));
+
+ cea = drm_find_cea_extension(edid);
+ if (!cea) {
+ DRM_DEBUG_KMS("ELD: no CEA Extension found\n");
+ return;
+ }
+
+ name = NULL;
+ drm_for_each_detailed_block((u8 *)edid, monitor_name, &name);
+ for (mnl = 0; name && mnl < 13; mnl++) {
+ if (name[mnl] == 0x0a)
+ break;
+ eld[20 + mnl] = name[mnl];
+ }
+ eld[4] = (cea[1] << 5) | mnl;
+ DRM_DEBUG_KMS("ELD monitor %s\n", eld + 20);
+
+ eld[0] = 2 << 3; /* ELD version: 2 */
+
+ eld[16] = edid->mfg_id[0];
+ eld[17] = edid->mfg_id[1];
+ eld[18] = edid->prod_code[0];
+ eld[19] = edid->prod_code[1];
+
+ if (cea[1] >= 3)
+ for (db = cea + 4; db < cea + cea[2]; db += dbl + 1) {
+ dbl = db[0] & 0x1f;
+
+ switch ((db[0] & 0xe0) >> 5) {
+ case AUDIO_BLOCK:
+ /* Audio Data Block, contains SADs */
+ sad_count = dbl / 3;
+ memcpy(eld + 20 + mnl, &db[1], dbl);
+ break;
+ case SPEAKER_BLOCK:
+ /* Speaker Allocation Data Block */
+ eld[7] = db[1];
+ break;
+ case VENDOR_BLOCK:
+ /* HDMI Vendor-Specific Data Block */
+ if (db[1] == 0x03 && db[2] == 0x0c && db[3] == 0)
+ parse_hdmi_vsdb(connector, db);
+ break;
+ default:
+ break;
+ }
+ }
+ eld[5] |= sad_count << 4;
+ eld[2] = (20 + mnl + sad_count * 3 + 3) / 4;
+
+ DRM_DEBUG_KMS("ELD size %d, SAD count %d\n", (int)eld[2], sad_count);
+}
+EXPORT_SYMBOL(drm_edid_to_eld);
+
+/**
+ * drm_av_sync_delay - HDMI/DP sink audio-video sync delay in millisecond
+ * @connector: connector associated with the HDMI/DP sink
+ * @mode: the display mode
+ */
+int drm_av_sync_delay(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ int i = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
+ int a, v;
+
+ if (!connector->latency_present[0])
+ return 0;
+ if (!connector->latency_present[1])
+ i = 0;
+
+ a = connector->audio_latency[i];
+ v = connector->video_latency[i];
+
+ /*
+ * HDMI/DP sink doesn't support audio or video?
+ */
+ if (a == 255 || v == 255)
+ return 0;
+
+ /*
+ * Convert raw EDID values to millisecond.
+ * Treat unknown latency as 0ms.
+ */
+ if (a)
+ a = min(2 * (a - 1), 500);
+ if (v)
+ v = min(2 * (v - 1), 500);
+
+ return max(v - a, 0);
+}
+EXPORT_SYMBOL(drm_av_sync_delay);
+
+/**
+ * drm_select_eld - select one ELD from multiple HDMI/DP sinks
+ * @encoder: the encoder just changed display mode
+ * @mode: the adjusted display mode
+ *
+ * It's possible for one encoder to be associated with multiple HDMI/DP sinks.
+ * The policy is now hard coded to simply use the first HDMI/DP sink's ELD.
+ */
+struct drm_connector *drm_select_eld(struct drm_encoder *encoder,
+ struct drm_display_mode *mode)
+{
+ struct drm_connector *connector;
+ struct drm_device *dev = encoder->dev;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ if (connector->encoder == encoder && connector->eld[0])
+ return connector;
+
+ return NULL;
+}
+EXPORT_SYMBOL(drm_select_eld);
+
+/**
+ * drm_detect_hdmi_monitor - detect whether monitor is hdmi.
+ * @edid: monitor EDID information
+ *
+ * Parse the CEA extension according to CEA-861-B.
+ * Return true if HDMI, false if not or unknown.
+ */
+bool drm_detect_hdmi_monitor(struct edid *edid)
+{
+ u8 *edid_ext;
+ int i, hdmi_id;
+ int start_offset, end_offset;
+ bool is_hdmi = false;
+
+ edid_ext = drm_find_cea_extension(edid);
+ if (!edid_ext)
+ goto end;
+
+ /* Data block offset in CEA extension block */
+ start_offset = 4;
+ end_offset = edid_ext[2];
+
+ /*
+ * Because HDMI identifier is in Vendor Specific Block,
+ * search it from all data blocks of CEA extension.
+ */
+ for (i = start_offset; i < end_offset;
+ /* Increased by data block len */
+ i += ((edid_ext[i] & 0x1f) + 1)) {
+ /* Find vendor specific block */
+ if ((edid_ext[i] >> 5) == VENDOR_BLOCK) {
+ hdmi_id = edid_ext[i + 1] | (edid_ext[i + 2] << 8) |
+ edid_ext[i + 3] << 16;
+ /* Find HDMI identifier */
+ if (hdmi_id == HDMI_IDENTIFIER)
+ is_hdmi = true;
+ break;
+ }
+ }
+
+end:
+ return is_hdmi;
+}
+EXPORT_SYMBOL(drm_detect_hdmi_monitor);
+
+/**
+ * drm_detect_monitor_audio - check monitor audio capability
+ *
+ * Monitor should have CEA extension block.
+ * If monitor has 'basic audio', but no CEA audio blocks, it's 'basic
+ * audio' only. If there is any audio extension block and supported
+ * audio format, assume at least 'basic audio' support, even if 'basic
+ * audio' is not defined in EDID.
+ *
+ */
+bool drm_detect_monitor_audio(struct edid *edid)
+{
+ u8 *edid_ext;
+ int i, j;
+ bool has_audio = false;
+ int start_offset, end_offset;
+
+ edid_ext = drm_find_cea_extension(edid);
+ if (!edid_ext)
+ goto end;
+
+ has_audio = ((edid_ext[3] & EDID_BASIC_AUDIO) != 0);
+
+ if (has_audio) {
+ DRM_DEBUG_KMS("Monitor has basic audio support\n");
+ goto end;
+ }
+
+ /* Data block offset in CEA extension block */
+ start_offset = 4;
+ end_offset = edid_ext[2];
+
+ for (i = start_offset; i < end_offset;
+ i += ((edid_ext[i] & 0x1f) + 1)) {
+ if ((edid_ext[i] >> 5) == AUDIO_BLOCK) {
+ has_audio = true;
+ for (j = 1; j < (edid_ext[i] & 0x1f); j += 3)
+ DRM_DEBUG_KMS("CEA audio format %d\n",
+ (edid_ext[i + j] >> 3) & 0xf);
+ goto end;
+ }
+ }
+end:
+ return has_audio;
+}
+EXPORT_SYMBOL(drm_detect_monitor_audio);
+
+/**
+ * drm_add_display_info - pull display info out if present
+ * @edid: EDID data
+ * @info: display info (attached to connector)
+ *
+ * Grab any available display info and stuff it into the drm_display_info
+ * structure that's part of the connector. Useful for tracking bpp and
+ * color spaces.
+ */
+static void drm_add_display_info(struct edid *edid,
+ struct drm_display_info *info)
+{
+ u8 *edid_ext;
+
+ info->width_mm = edid->width_cm * 10;
+ info->height_mm = edid->height_cm * 10;
+
+ /* driver figures it out in this case */
+ info->bpc = 0;
+ info->color_formats = 0;
+
+ if (edid->revision < 3)
+ return;
+
+ if (!(edid->input & DRM_EDID_INPUT_DIGITAL))
+ return;
+
+ /* Get data from CEA blocks if present */
+ edid_ext = drm_find_cea_extension(edid);
+ if (edid_ext) {
+ info->cea_rev = edid_ext[1];
+
+ /* The existence of a CEA block should imply RGB support */
+ info->color_formats = DRM_COLOR_FORMAT_RGB444;
+ if (edid_ext[3] & EDID_CEA_YCRCB444)
+ info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
+ if (edid_ext[3] & EDID_CEA_YCRCB422)
+ info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;
+ }
+
+ /* Only defined for 1.4 with digital displays */
+ if (edid->revision < 4)
+ return;
+
+ switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {
+ case DRM_EDID_DIGITAL_DEPTH_6:
+ info->bpc = 6;
+ break;
+ case DRM_EDID_DIGITAL_DEPTH_8:
+ info->bpc = 8;
+ break;
+ case DRM_EDID_DIGITAL_DEPTH_10:
+ info->bpc = 10;
+ break;
+ case DRM_EDID_DIGITAL_DEPTH_12:
+ info->bpc = 12;
+ break;
+ case DRM_EDID_DIGITAL_DEPTH_14:
+ info->bpc = 14;
+ break;
+ case DRM_EDID_DIGITAL_DEPTH_16:
+ info->bpc = 16;
+ break;
+ case DRM_EDID_DIGITAL_DEPTH_UNDEF:
+ default:
+ info->bpc = 0;
+ break;
+ }
+
+ info->color_formats |= DRM_COLOR_FORMAT_RGB444;
+ if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)
+ info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
+ if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)
+ info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;
+}
+
+/**
+ * drm_add_edid_modes - add modes from EDID data, if available
+ * @connector: connector we're probing
+ * @edid: edid data
+ *
+ * Add the specified modes to the connector's mode list.
+ *
+ * Return number of modes added or 0 if we couldn't find any.
+ */
+int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
+{
+ int num_modes = 0;
+ u32 quirks;
+
+ if (edid == NULL) {
+ return 0;
+ }
+ if (!drm_edid_is_valid(edid)) {
+ dev_warn(connector->dev->dev, "%s: EDID invalid.\n",
+ drm_get_connector_name(connector));
+ return 0;
+ }
+
+ quirks = edid_get_quirks(edid);
+
+ /*
+ * EDID spec says modes should be preferred in this order:
+ * - preferred detailed mode
+ * - other detailed modes from base block
+ * - detailed modes from extension blocks
+ * - CVT 3-byte code modes
+ * - standard timing codes
+ * - established timing codes
+ * - modes inferred from GTF or CVT range information
+ *
+ * We get this pretty much right.
+ *
+ * XXX order for additional mode types in extension blocks?
+ */
+ num_modes += add_detailed_modes(connector, edid, quirks);
+ num_modes += add_cvt_modes(connector, edid);
+ num_modes += add_standard_modes(connector, edid);
+ num_modes += add_established_modes(connector, edid);
+ num_modes += add_inferred_modes(connector, edid);
+ num_modes += add_cea_modes(connector, edid);
+
+ if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
+ edid_fixup_preferred(connector, quirks);
+
+ drm_add_display_info(edid, &connector->display_info);
+
+ return num_modes;
+}
+EXPORT_SYMBOL(drm_add_edid_modes);
+
+/**
+ * drm_add_modes_noedid - add modes for the connectors without EDID
+ * @connector: connector we're probing
+ * @hdisplay: the horizontal display limit
+ * @vdisplay: the vertical display limit
+ *
+ * Add the specified modes to the connector's mode list. Only when the
+ * hdisplay/vdisplay is not beyond the given limit, it will be added.
+ *
+ * Return number of modes added or 0 if we couldn't find any.
+ */
+int drm_add_modes_noedid(struct drm_connector *connector,
+ int hdisplay, int vdisplay)
+{
+ int i, count, num_modes = 0;
+ struct drm_display_mode *mode;
+ struct drm_device *dev = connector->dev;
+
+ count = sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
+ if (hdisplay < 0)
+ hdisplay = 0;
+ if (vdisplay < 0)
+ vdisplay = 0;
+
+ for (i = 0; i < count; i++) {
+ const struct drm_display_mode *ptr = &drm_dmt_modes[i];
+ if (hdisplay && vdisplay) {
+ /*
+ * Only when two are valid, they will be used to check
+ * whether the mode should be added to the mode list of
+ * the connector.
+ */
+ if (ptr->hdisplay > hdisplay ||
+ ptr->vdisplay > vdisplay)
+ continue;
+ }
+ if (drm_mode_vrefresh(ptr) > 61)
+ continue;
+ mode = drm_mode_duplicate(dev, ptr);
+ if (mode) {
+ drm_mode_probed_add(connector, mode);
+ num_modes++;
+ }
+ }
+ return num_modes;
+}
+EXPORT_SYMBOL(drm_add_modes_noedid);
diff --git a/drivers/gpu/drm/drm_edid_load.c b/drivers/gpu/drm/drm_edid_load.c
new file mode 100644
index 0000000..0303935
--- /dev/null
+++ b/drivers/gpu/drm/drm_edid_load.c
@@ -0,0 +1,252 @@
+/*
+ drm_edid_load.c: use a built-in EDID data set or load it via the firmware
+ interface
+
+ Copyright (C) 2012 Carsten Emde <C.Emde@osadl.org>
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <linux/module.h>
+#include <linux/firmware.h>
+#include "drmP.h"
+#include "drm_crtc.h"
+#include "drm_crtc_helper.h"
+#include "drm_edid.h"
+
+static char edid_firmware[PATH_MAX];
+module_param_string(edid_firmware, edid_firmware, sizeof(edid_firmware), 0644);
+MODULE_PARM_DESC(edid_firmware, "Do not probe monitor, use specified EDID blob "
+ "from built-in data or /lib/firmware instead. ");
+
+#define GENERIC_EDIDS 4
+static char *generic_edid_name[GENERIC_EDIDS] = {
+ "edid/1024x768.bin",
+ "edid/1280x1024.bin",
+ "edid/1680x1050.bin",
+ "edid/1920x1080.bin",
+};
+
+static u8 generic_edid[GENERIC_EDIDS][128] = {
+ {
+ 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
+ 0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x05, 0x16, 0x01, 0x03, 0x6d, 0x23, 0x1a, 0x78,
+ 0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
+ 0x20, 0x50, 0x54, 0x00, 0x08, 0x00, 0x61, 0x40,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x64, 0x19,
+ 0x00, 0x40, 0x41, 0x00, 0x26, 0x30, 0x08, 0x90,
+ 0x36, 0x00, 0x63, 0x0a, 0x11, 0x00, 0x00, 0x18,
+ 0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
+ 0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
+ 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
+ 0x3d, 0x2f, 0x31, 0x07, 0x00, 0x0a, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
+ 0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x58,
+ 0x47, 0x41, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x55,
+ },
+ {
+ 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
+ 0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x05, 0x16, 0x01, 0x03, 0x6d, 0x2c, 0x23, 0x78,
+ 0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
+ 0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0x81, 0x80,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x30, 0x2a,
+ 0x00, 0x98, 0x51, 0x00, 0x2a, 0x40, 0x30, 0x70,
+ 0x13, 0x00, 0xbc, 0x63, 0x11, 0x00, 0x00, 0x1e,
+ 0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
+ 0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
+ 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
+ 0x3d, 0x3e, 0x40, 0x0b, 0x00, 0x0a, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
+ 0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x53,
+ 0x58, 0x47, 0x41, 0x0a, 0x20, 0x20, 0x00, 0xa0,
+ },
+ {
+ 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
+ 0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x05, 0x16, 0x01, 0x03, 0x6d, 0x2b, 0x1b, 0x78,
+ 0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
+ 0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0xb3, 0x00,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x21, 0x39,
+ 0x90, 0x30, 0x62, 0x1a, 0x27, 0x40, 0x68, 0xb0,
+ 0x36, 0x00, 0xb5, 0x11, 0x11, 0x00, 0x00, 0x1e,
+ 0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
+ 0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
+ 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
+ 0x3d, 0x40, 0x42, 0x0f, 0x00, 0x0a, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
+ 0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x57,
+ 0x53, 0x58, 0x47, 0x41, 0x0a, 0x20, 0x00, 0x26,
+ },
+ {
+ 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
+ 0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x05, 0x16, 0x01, 0x03, 0x6d, 0x32, 0x1c, 0x78,
+ 0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
+ 0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0xd1, 0xc0,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a,
+ 0x80, 0x18, 0x71, 0x38, 0x2d, 0x40, 0x58, 0x2c,
+ 0x45, 0x00, 0xf4, 0x19, 0x11, 0x00, 0x00, 0x1e,
+ 0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
+ 0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
+ 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
+ 0x3d, 0x42, 0x44, 0x0f, 0x00, 0x0a, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
+ 0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x46,
+ 0x48, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x05,
+ },
+};
+
+static int edid_load(struct drm_connector *connector, char *name,
+ char *connector_name)
+{
+ const struct firmware *fw;
+ struct platform_device *pdev;
+ u8 *fwdata = NULL, *edid, *new_edid;
+ int fwsize, expected;
+ int builtin = 0, err = 0;
+ int i, valid_extensions = 0;
+
+ pdev = platform_device_register_simple(connector_name, -1, NULL, 0);
+ if (IS_ERR(pdev)) {
+ DRM_ERROR("Failed to register EDID firmware platform device "
+ "for connector \"%s\"\n", connector_name);
+ err = -EINVAL;
+ goto out;
+ }
+
+ err = request_firmware(&fw, name, &pdev->dev);
+ platform_device_unregister(pdev);
+
+ if (err) {
+ i = 0;
+ while (i < GENERIC_EDIDS && strcmp(name, generic_edid_name[i]))
+ i++;
+ if (i < GENERIC_EDIDS) {
+ err = 0;
+ builtin = 1;
+ fwdata = generic_edid[i];
+ fwsize = sizeof(generic_edid[i]);
+ }
+ }
+
+ if (err) {
+ DRM_ERROR("Requesting EDID firmware \"%s\" failed (err=%d)\n",
+ name, err);
+ goto out;
+ }
+
+ if (fwdata == NULL) {
+ fwdata = (u8 *) fw->data;
+ fwsize = fw->size;
+ }
+
+ expected = (fwdata[0x7e] + 1) * EDID_LENGTH;
+ if (expected != fwsize) {
+ DRM_ERROR("Size of EDID firmware \"%s\" is invalid "
+ "(expected %d, got %d)\n", name, expected, (int) fwsize);
+ err = -EINVAL;
+ goto relfw_out;
+ }
+
+ edid = kmalloc(fwsize, GFP_KERNEL);
+ if (edid == NULL) {
+ err = -ENOMEM;
+ goto relfw_out;
+ }
+ memcpy(edid, fwdata, fwsize);
+
+ if (!drm_edid_block_valid(edid, 0)) {
+ DRM_ERROR("Base block of EDID firmware \"%s\" is invalid ",
+ name);
+ kfree(edid);
+ err = -EINVAL;
+ goto relfw_out;
+ }
+
+ for (i = 1; i <= edid[0x7e]; i++) {
+ if (i != valid_extensions + 1)
+ memcpy(edid + (valid_extensions + 1) * EDID_LENGTH,
+ edid + i * EDID_LENGTH, EDID_LENGTH);
+ if (drm_edid_block_valid(edid + i * EDID_LENGTH, i))
+ valid_extensions++;
+ }
+
+ if (valid_extensions != edid[0x7e]) {
+ edid[EDID_LENGTH-1] += edid[0x7e] - valid_extensions;
+ DRM_INFO("Found %d valid extensions instead of %d in EDID data "
+ "\"%s\" for connector \"%s\"\n", valid_extensions,
+ edid[0x7e], name, connector_name);
+ edid[0x7e] = valid_extensions;
+ new_edid = krealloc(edid, (valid_extensions + 1) * EDID_LENGTH,
+ GFP_KERNEL);
+ if (new_edid == NULL) {
+ err = -ENOMEM;
+ kfree(edid);
+ goto relfw_out;
+ }
+ edid = new_edid;
+ }
+
+ connector->display_info.raw_edid = edid;
+ DRM_INFO("Got %s EDID base block and %d extension%s from "
+ "\"%s\" for connector \"%s\"\n", builtin ? "built-in" :
+ "external", valid_extensions, valid_extensions == 1 ? "" : "s",
+ name, connector_name);
+
+relfw_out:
+ release_firmware(fw);
+
+out:
+ return err;
+}
+
+int drm_load_edid_firmware(struct drm_connector *connector)
+{
+ char *connector_name = drm_get_connector_name(connector);
+ char *edidname = edid_firmware, *last, *colon;
+ int ret;
+
+ if (*edidname == '\0')
+ return 0;
+
+ colon = strchr(edidname, ':');
+ if (colon != NULL) {
+ if (strncmp(connector_name, edidname, colon - edidname))
+ return 0;
+ edidname = colon + 1;
+ if (*edidname == '\0')
+ return 0;
+ }
+
+ last = edidname + strlen(edidname) - 1;
+ if (*last == '\n')
+ *last = '\0';
+
+ ret = edid_load(connector, edidname, connector_name);
+ if (ret)
+ return 0;
+
+ drm_mode_connector_update_edid_property(connector,
+ (struct edid *) connector->display_info.raw_edid);
+
+ return drm_add_edid_modes(connector, (struct edid *)
+ connector->display_info.raw_edid);
+}
diff --git a/drivers/gpu/drm/drm_edid_modes.h b/drivers/gpu/drm/drm_edid_modes.h
new file mode 100644
index 0000000..ff98a7e
--- /dev/null
+++ b/drivers/gpu/drm/drm_edid_modes.h
@@ -0,0 +1,774 @@
+/*
+ * Copyright (c) 2007-2008 Intel Corporation
+ * Jesse Barnes <jesse.barnes@intel.com>
+ * Copyright 2010 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/kernel.h>
+#include "drmP.h"
+#include "drm_edid.h"
+
+/*
+ * Autogenerated from the DMT spec.
+ * This table is copied from xfree86/modes/xf86EdidModes.c.
+ */
+static const struct drm_display_mode drm_dmt_modes[] = {
+ /* 640x350@85Hz */
+ { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
+ 736, 832, 0, 350, 382, 385, 445, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 640x400@85Hz */
+ { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
+ 736, 832, 0, 400, 401, 404, 445, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 720x400@85Hz */
+ { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 756,
+ 828, 936, 0, 400, 401, 404, 446, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 640x480@60Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
+ 752, 800, 0, 480, 489, 492, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 640x480@72Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
+ 704, 832, 0, 480, 489, 492, 520, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 640x480@75Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
+ 720, 840, 0, 480, 481, 484, 500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 640x480@85Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 36000, 640, 696,
+ 752, 832, 0, 480, 481, 484, 509, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 800x600@56Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
+ 896, 1024, 0, 600, 601, 603, 625, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 800x600@60Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
+ 968, 1056, 0, 600, 601, 605, 628, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 800x600@72Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
+ 976, 1040, 0, 600, 637, 643, 666, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 800x600@75Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
+ 896, 1056, 0, 600, 601, 604, 625, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 800x600@85Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 56250, 800, 832,
+ 896, 1048, 0, 600, 601, 604, 631, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 800x600@120Hz RB */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 73250, 800, 848,
+ 880, 960, 0, 600, 603, 607, 636, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 848x480@60Hz */
+ { DRM_MODE("848x480", DRM_MODE_TYPE_DRIVER, 33750, 848, 864,
+ 976, 1088, 0, 480, 486, 494, 517, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1024x768@43Hz, interlace */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032,
+ 1208, 1264, 0, 768, 768, 772, 817, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
+ DRM_MODE_FLAG_INTERLACE) },
+ /* 1024x768@60Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
+ 1184, 1344, 0, 768, 771, 777, 806, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1024x768@70Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
+ 1184, 1328, 0, 768, 771, 777, 806, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1024x768@75Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
+ 1136, 1312, 0, 768, 769, 772, 800, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1024x768@85Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 94500, 1024, 1072,
+ 1168, 1376, 0, 768, 769, 772, 808, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1024x768@120Hz RB */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 115500, 1024, 1072,
+ 1104, 1184, 0, 768, 771, 775, 813, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1152x864@75Hz */
+ { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
+ 1344, 1600, 0, 864, 865, 868, 900, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x768@60Hz RB */
+ { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 68250, 1280, 1328,
+ 1360, 1440, 0, 768, 771, 778, 790, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1280x768@60Hz */
+ { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
+ 1472, 1664, 0, 768, 771, 778, 798, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x768@75Hz */
+ { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 102250, 1280, 1360,
+ 1488, 1696, 0, 768, 771, 778, 805, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1280x768@85Hz */
+ { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 117500, 1280, 1360,
+ 1496, 1712, 0, 768, 771, 778, 809, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x768@120Hz RB */
+ { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 140250, 1280, 1328,
+ 1360, 1440, 0, 768, 771, 778, 813, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1280x800@60Hz RB */
+ { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 71000, 1280, 1328,
+ 1360, 1440, 0, 800, 803, 809, 823, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1280x800@60Hz */
+ { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
+ 1480, 1680, 0, 800, 803, 809, 831, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1280x800@75Hz */
+ { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 106500, 1280, 1360,
+ 1488, 1696, 0, 800, 803, 809, 838, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x800@85Hz */
+ { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 122500, 1280, 1360,
+ 1496, 1712, 0, 800, 803, 809, 843, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x800@120Hz RB */
+ { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 146250, 1280, 1328,
+ 1360, 1440, 0, 800, 803, 809, 847, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1280x960@60Hz */
+ { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
+ 1488, 1800, 0, 960, 961, 964, 1000, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x960@85Hz */
+ { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1344,
+ 1504, 1728, 0, 960, 961, 964, 1011, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x960@120Hz RB */
+ { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 175500, 1280, 1328,
+ 1360, 1440, 0, 960, 963, 967, 1017, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1280x1024@60Hz */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
+ 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x1024@75Hz */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
+ 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x1024@85Hz */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 157500, 1280, 1344,
+ 1504, 1728, 0, 1024, 1025, 1028, 1072, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x1024@120Hz RB */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 187250, 1280, 1328,
+ 1360, 1440, 0, 1024, 1027, 1034, 1084, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1360x768@60Hz */
+ { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
+ 1536, 1792, 0, 768, 771, 777, 795, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1360x768@120Hz RB */
+ { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 148250, 1360, 1408,
+ 1440, 1520, 0, 768, 771, 776, 813, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1400x1050@60Hz RB */
+ { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 101000, 1400, 1448,
+ 1480, 1560, 0, 1050, 1053, 1057, 1080, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1400x1050@60Hz */
+ { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
+ 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1400x1050@75Hz */
+ { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 156000, 1400, 1504,
+ 1648, 1896, 0, 1050, 1053, 1057, 1099, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1400x1050@85Hz */
+ { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 179500, 1400, 1504,
+ 1656, 1912, 0, 1050, 1053, 1057, 1105, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1400x1050@120Hz RB */
+ { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 208000, 1400, 1448,
+ 1480, 1560, 0, 1050, 1053, 1057, 1112, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1440x900@60Hz RB */
+ { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 88750, 1440, 1488,
+ 1520, 1600, 0, 900, 903, 909, 926, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1440x900@60Hz */
+ { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
+ 1672, 1904, 0, 900, 903, 909, 934, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x900@75Hz */
+ { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 136750, 1440, 1536,
+ 1688, 1936, 0, 900, 903, 909, 942, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x900@85Hz */
+ { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 157000, 1440, 1544,
+ 1696, 1952, 0, 900, 903, 909, 948, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x900@120Hz RB */
+ { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 182750, 1440, 1488,
+ 1520, 1600, 0, 900, 903, 909, 953, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1600x1200@60Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@65Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 175500, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@70Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 189000, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@75Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 202500, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@85Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 229500, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@120Hz RB */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 268250, 1600, 1648,
+ 1680, 1760, 0, 1200, 1203, 1207, 1271, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1680x1050@60Hz RB */
+ { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 119000, 1680, 1728,
+ 1760, 1840, 0, 1050, 1053, 1059, 1080, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1680x1050@60Hz */
+ { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
+ 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1680x1050@75Hz */
+ { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 187000, 1680, 1800,
+ 1976, 2272, 0, 1050, 1053, 1059, 1099, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1680x1050@85Hz */
+ { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 214750, 1680, 1808,
+ 1984, 2288, 0, 1050, 1053, 1059, 1105, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1680x1050@120Hz RB */
+ { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 245500, 1680, 1728,
+ 1760, 1840, 0, 1050, 1053, 1059, 1112, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1792x1344@60Hz */
+ { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
+ 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1792x1344@75Hz */
+ { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 261000, 1792, 1888,
+ 2104, 2456, 0, 1344, 1345, 1348, 1417, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1792x1344@120Hz RB */
+ { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 333250, 1792, 1840,
+ 1872, 1952, 0, 1344, 1347, 1351, 1423, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1856x1392@60Hz */
+ { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
+ 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1856x1392@75Hz */
+ { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1856, 1984,
+ 2208, 2560, 0, 1392, 1395, 1399, 1500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1856x1392@120Hz RB */
+ { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 356500, 1856, 1904,
+ 1936, 2016, 0, 1392, 1395, 1399, 1474, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1920x1200@60Hz RB */
+ { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 154000, 1920, 1968,
+ 2000, 2080, 0, 1200, 1203, 1209, 1235, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1920x1200@60Hz */
+ { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
+ 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1200@75Hz */
+ { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 245250, 1920, 2056,
+ 2264, 2608, 0, 1200, 1203, 1209, 1255, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1200@85Hz */
+ { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 281250, 1920, 2064,
+ 2272, 2624, 0, 1200, 1203, 1209, 1262, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1200@120Hz RB */
+ { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 317000, 1920, 1968,
+ 2000, 2080, 0, 1200, 1203, 1209, 1271, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1920x1440@60Hz */
+ { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
+ 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1440@75Hz */
+ { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2064,
+ 2288, 2640, 0, 1440, 1441, 1444, 1500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1440@120Hz RB */
+ { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 380500, 1920, 1968,
+ 2000, 2080, 0, 1440, 1443, 1447, 1525, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 2560x1600@60Hz RB */
+ { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 268500, 2560, 2608,
+ 2640, 2720, 0, 1600, 1603, 1609, 1646, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 2560x1600@60Hz */
+ { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
+ 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 2560x1600@75HZ */
+ { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 443250, 2560, 2768,
+ 3048, 3536, 0, 1600, 1603, 1609, 1672, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 2560x1600@85HZ */
+ { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 505250, 2560, 2768,
+ 3048, 3536, 0, 1600, 1603, 1609, 1682, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 2560x1600@120Hz RB */
+ { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 552750, 2560, 2608,
+ 2640, 2720, 0, 1600, 1603, 1609, 1694, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+
+};
+static const int drm_num_dmt_modes =
+ sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
+
+static const struct drm_display_mode edid_est_modes[] = {
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
+ 968, 1056, 0, 600, 601, 605, 628, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@60Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
+ 896, 1024, 0, 600, 601, 603, 625, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@56Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
+ 720, 840, 0, 480, 481, 484, 500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
+ 704, 832, 0, 480, 489, 491, 520, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704,
+ 768, 864, 0, 480, 483, 486, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25200, 640, 656,
+ 752, 800, 0, 480, 490, 492, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */
+ { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738,
+ 846, 900, 0, 400, 421, 423, 449, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 720x400@88Hz */
+ { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 28320, 720, 738,
+ 846, 900, 0, 400, 412, 414, 449, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 720x400@70Hz */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
+ 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78800, 1024, 1040,
+ 1136, 1312, 0, 768, 769, 772, 800, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
+ 1184, 1328, 0, 768, 771, 777, 806, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@70Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
+ 1184, 1344, 0, 768, 771, 777, 806, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@60Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER,44900, 1024, 1032,
+ 1208, 1264, 0, 768, 768, 776, 817, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_INTERLACE) }, /* 1024x768@43Hz */
+ { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864,
+ 928, 1152, 0, 624, 625, 628, 667, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 832x624@75Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
+ 896, 1056, 0, 600, 601, 604, 625, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@75Hz */
+ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
+ 976, 1040, 0, 600, 637, 643, 666, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@72Hz */
+ { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
+ 1344, 1600, 0, 864, 865, 868, 900, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */
+};
+
+struct minimode {
+ short w;
+ short h;
+ short r;
+ short rb;
+};
+
+static const struct minimode est3_modes[] = {
+ /* byte 6 */
+ { 640, 350, 85, 0 },
+ { 640, 400, 85, 0 },
+ { 720, 400, 85, 0 },
+ { 640, 480, 85, 0 },
+ { 848, 480, 60, 0 },
+ { 800, 600, 85, 0 },
+ { 1024, 768, 85, 0 },
+ { 1152, 864, 75, 0 },
+ /* byte 7 */
+ { 1280, 768, 60, 1 },
+ { 1280, 768, 60, 0 },
+ { 1280, 768, 75, 0 },
+ { 1280, 768, 85, 0 },
+ { 1280, 960, 60, 0 },
+ { 1280, 960, 85, 0 },
+ { 1280, 1024, 60, 0 },
+ { 1280, 1024, 85, 0 },
+ /* byte 8 */
+ { 1360, 768, 60, 0 },
+ { 1440, 900, 60, 1 },
+ { 1440, 900, 60, 0 },
+ { 1440, 900, 75, 0 },
+ { 1440, 900, 85, 0 },
+ { 1400, 1050, 60, 1 },
+ { 1400, 1050, 60, 0 },
+ { 1400, 1050, 75, 0 },
+ /* byte 9 */
+ { 1400, 1050, 85, 0 },
+ { 1680, 1050, 60, 1 },
+ { 1680, 1050, 60, 0 },
+ { 1680, 1050, 75, 0 },
+ { 1680, 1050, 85, 0 },
+ { 1600, 1200, 60, 0 },
+ { 1600, 1200, 65, 0 },
+ { 1600, 1200, 70, 0 },
+ /* byte 10 */
+ { 1600, 1200, 75, 0 },
+ { 1600, 1200, 85, 0 },
+ { 1792, 1344, 60, 0 },
+ { 1792, 1344, 85, 0 },
+ { 1856, 1392, 60, 0 },
+ { 1856, 1392, 75, 0 },
+ { 1920, 1200, 60, 1 },
+ { 1920, 1200, 60, 0 },
+ /* byte 11 */
+ { 1920, 1200, 75, 0 },
+ { 1920, 1200, 85, 0 },
+ { 1920, 1440, 60, 0 },
+ { 1920, 1440, 75, 0 },
+};
+static const int num_est3_modes = ARRAY_SIZE(est3_modes);
+
+static const struct minimode extra_modes[] = {
+ { 1024, 576, 60, 0 },
+ { 1366, 768, 60, 0 },
+ { 1600, 900, 60, 0 },
+ { 1680, 945, 60, 0 },
+ { 1920, 1080, 60, 0 },
+ { 2048, 1152, 60, 0 },
+ { 2048, 1536, 60, 0 },
+};
+static const int num_extra_modes = ARRAY_SIZE(extra_modes);
+
+/*
+ * Probably taken from CEA-861 spec.
+ * This table is converted from xorg's hw/xfree86/modes/xf86EdidModes.c.
+ */
+static const struct drm_display_mode edid_cea_modes[] = {
+ /* 1 - 640x480@60Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
+ 752, 800, 0, 480, 490, 492, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 2 - 720x480@60Hz */
+ { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
+ 798, 858, 0, 480, 489, 495, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 3 - 720x480@60Hz */
+ { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
+ 798, 858, 0, 480, 489, 495, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 4 - 1280x720@60Hz */
+ { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
+ 1430, 1650, 0, 720, 725, 730, 750, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 5 - 1920x1080i@60Hz */
+ { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
+ 2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
+ DRM_MODE_FLAG_INTERLACE) },
+ /* 6 - 1440x480i@60Hz */
+ { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478,
+ 1602, 1716, 0, 480, 488, 494, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
+ /* 7 - 1440x480i@60Hz */
+ { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478,
+ 1602, 1716, 0, 480, 488, 494, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
+ /* 8 - 1440x240@60Hz */
+ { DRM_MODE("1440x240", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478,
+ 1602, 1716, 0, 240, 244, 247, 262, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_DBLCLK) },
+ /* 9 - 1440x240@60Hz */
+ { DRM_MODE("1440x240", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478,
+ 1602, 1716, 0, 240, 244, 247, 262, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_DBLCLK) },
+ /* 10 - 2880x480i@60Hz */
+ { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
+ 3204, 3432, 0, 480, 488, 494, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE) },
+ /* 11 - 2880x480i@60Hz */
+ { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
+ 3204, 3432, 0, 480, 488, 494, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE) },
+ /* 12 - 2880x240@60Hz */
+ { DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
+ 3204, 3432, 0, 240, 244, 247, 262, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 13 - 2880x240@60Hz */
+ { DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
+ 3204, 3432, 0, 240, 244, 247, 262, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 14 - 1440x480@60Hz */
+ { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
+ 1596, 1716, 0, 480, 489, 495, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 15 - 1440x480@60Hz */
+ { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
+ 1596, 1716, 0, 480, 489, 495, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 16 - 1920x1080@60Hz */
+ { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
+ 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 17 - 720x576@50Hz */
+ { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
+ 796, 864, 0, 576, 581, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 18 - 720x576@50Hz */
+ { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
+ 796, 864, 0, 576, 581, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 19 - 1280x720@50Hz */
+ { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
+ 1760, 1980, 0, 720, 725, 730, 750, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 20 - 1920x1080i@50Hz */
+ { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
+ 2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
+ DRM_MODE_FLAG_INTERLACE) },
+ /* 21 - 1440x576i@50Hz */
+ { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1464,
+ 1590, 1728, 0, 576, 580, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
+ /* 22 - 1440x576i@50Hz */
+ { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1464,
+ 1590, 1728, 0, 576, 580, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
+ /* 23 - 1440x288@50Hz */
+ { DRM_MODE("1440x288", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1464,
+ 1590, 1728, 0, 288, 290, 293, 312, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_DBLCLK) },
+ /* 24 - 1440x288@50Hz */
+ { DRM_MODE("1440x288", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1464,
+ 1590, 1728, 0, 288, 290, 293, 312, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_DBLCLK) },
+ /* 25 - 2880x576i@50Hz */
+ { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
+ 3180, 3456, 0, 576, 580, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE) },
+ /* 26 - 2880x576i@50Hz */
+ { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
+ 3180, 3456, 0, 576, 580, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE) },
+ /* 27 - 2880x288@50Hz */
+ { DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
+ 3180, 3456, 0, 288, 290, 293, 312, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 28 - 2880x288@50Hz */
+ { DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
+ 3180, 3456, 0, 288, 290, 293, 312, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 29 - 1440x576@50Hz */
+ { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
+ 1592, 1728, 0, 576, 581, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 30 - 1440x576@50Hz */
+ { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
+ 1592, 1728, 0, 576, 581, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 31 - 1920x1080@50Hz */
+ { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
+ 2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 32 - 1920x1080@24Hz */
+ { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2558,
+ 2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 33 - 1920x1080@25Hz */
+ { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
+ 2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 34 - 1920x1080@30Hz */
+ { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
+ 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 35 - 2880x480@60Hz */
+ { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
+ 3192, 3432, 0, 480, 489, 495, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 36 - 2880x480@60Hz */
+ { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
+ 3192, 3432, 0, 480, 489, 495, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 37 - 2880x576@50Hz */
+ { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
+ 3184, 3456, 0, 576, 581, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 38 - 2880x576@50Hz */
+ { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
+ 3184, 3456, 0, 576, 581, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 39 - 1920x1080i@50Hz */
+ { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 72000, 1920, 1952,
+ 2120, 2304, 0, 1080, 1126, 1136, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE) },
+ /* 40 - 1920x1080i@100Hz */
+ { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
+ 2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
+ DRM_MODE_FLAG_INTERLACE) },
+ /* 41 - 1280x720@100Hz */
+ { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1720,
+ 1760, 1980, 0, 720, 725, 730, 750, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 42 - 720x576@100Hz */
+ { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
+ 796, 864, 0, 576, 581, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 43 - 720x576@100Hz */
+ { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
+ 796, 864, 0, 576, 581, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 44 - 1440x576i@100Hz */
+ { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
+ 1590, 1728, 0, 576, 580, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_DBLCLK) },
+ /* 45 - 1440x576i@100Hz */
+ { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
+ 1590, 1728, 0, 576, 580, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_DBLCLK) },
+ /* 46 - 1920x1080i@120Hz */
+ { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
+ 2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
+ DRM_MODE_FLAG_INTERLACE) },
+ /* 47 - 1280x720@120Hz */
+ { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1390,
+ 1430, 1650, 0, 720, 725, 730, 750, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 48 - 720x480@120Hz */
+ { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
+ 798, 858, 0, 480, 489, 495, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 49 - 720x480@120Hz */
+ { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
+ 798, 858, 0, 480, 489, 495, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 50 - 1440x480i@120Hz */
+ { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1478,
+ 1602, 1716, 0, 480, 488, 494, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
+ /* 51 - 1440x480i@120Hz */
+ { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1478,
+ 1602, 1716, 0, 480, 488, 494, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
+ /* 52 - 720x576@200Hz */
+ { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
+ 796, 864, 0, 576, 581, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 53 - 720x576@200Hz */
+ { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
+ 796, 864, 0, 576, 581, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 54 - 1440x576i@200Hz */
+ { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 108000, 1440, 1464,
+ 1590, 1728, 0, 576, 580, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
+ /* 55 - 1440x576i@200Hz */
+ { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 108000, 1440, 1464,
+ 1590, 1728, 0, 576, 580, 586, 625, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
+ /* 56 - 720x480@240Hz */
+ { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
+ 798, 858, 0, 480, 489, 495, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 57 - 720x480@240Hz */
+ { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
+ 798, 858, 0, 480, 489, 495, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 58 - 1440x480i@240 */
+ { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 108000, 1440, 1478,
+ 1602, 1716, 0, 480, 488, 494, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
+ /* 59 - 1440x480i@240 */
+ { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 108000, 1440, 1478,
+ 1602, 1716, 0, 480, 488, 494, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+ DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK) },
+ /* 60 - 1280x720@24Hz */
+ { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 59400, 1280, 3040,
+ 3080, 3300, 0, 720, 725, 730, 750, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 61 - 1280x720@25Hz */
+ { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3700,
+ 3740, 3960, 0, 720, 725, 730, 750, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 62 - 1280x720@30Hz */
+ { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
+ 3080, 3300, 0, 720, 725, 730, 750, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 63 - 1920x1080@120Hz */
+ { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2008,
+ 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 64 - 1920x1080@100Hz */
+ { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
+ 2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+};
+static const int drm_num_cea_modes = ARRAY_SIZE(edid_cea_modes);
diff --git a/drivers/gpu/drm/drm_encoder_slave.c b/drivers/gpu/drm/drm_encoder_slave.c
new file mode 100644
index 0000000..fb94355
--- /dev/null
+++ b/drivers/gpu/drm/drm_encoder_slave.c
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2009 Francisco Jerez.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include <linux/module.h>
+
+#include "drm_encoder_slave.h"
+
+/**
+ * drm_i2c_encoder_init - Initialize an I2C slave encoder
+ * @dev: DRM device.
+ * @encoder: Encoder to be attached to the I2C device. You aren't
+ * required to have called drm_encoder_init() before.
+ * @adap: I2C adapter that will be used to communicate with
+ * the device.
+ * @info: Information that will be used to create the I2C device.
+ * Required fields are @addr and @type.
+ *
+ * Create an I2C device on the specified bus (the module containing its
+ * driver is transparently loaded) and attach it to the specified
+ * &drm_encoder_slave. The @slave_funcs field will be initialized with
+ * the hooks provided by the slave driver.
+ *
+ * If @info->platform_data is non-NULL it will be used as the initial
+ * slave config.
+ *
+ * Returns 0 on success or a negative errno on failure, in particular,
+ * -ENODEV is returned when no matching driver is found.
+ */
+int drm_i2c_encoder_init(struct drm_device *dev,
+ struct drm_encoder_slave *encoder,
+ struct i2c_adapter *adap,
+ const struct i2c_board_info *info)
+{
+ char modalias[sizeof(I2C_MODULE_PREFIX)
+ + I2C_NAME_SIZE];
+ struct module *module = NULL;
+ struct i2c_client *client;
+ struct drm_i2c_encoder_driver *encoder_drv;
+ int err = 0;
+
+ snprintf(modalias, sizeof(modalias),
+ "%s%s", I2C_MODULE_PREFIX, info->type);
+ request_module(modalias);
+
+ client = i2c_new_device(adap, info);
+ if (!client) {
+ err = -ENOMEM;
+ goto fail;
+ }
+
+ if (!client->driver) {
+ err = -ENODEV;
+ goto fail_unregister;
+ }
+
+ module = client->driver->driver.owner;
+ if (!try_module_get(module)) {
+ err = -ENODEV;
+ goto fail_unregister;
+ }
+
+ encoder->bus_priv = client;
+
+ encoder_drv = to_drm_i2c_encoder_driver(client->driver);
+
+ err = encoder_drv->encoder_init(client, dev, encoder);
+ if (err)
+ goto fail_unregister;
+
+ if (info->platform_data)
+ encoder->slave_funcs->set_config(&encoder->base,
+ info->platform_data);
+
+ return 0;
+
+fail_unregister:
+ i2c_unregister_device(client);
+ module_put(module);
+fail:
+ return err;
+}
+EXPORT_SYMBOL(drm_i2c_encoder_init);
+
+/**
+ * drm_i2c_encoder_destroy - Unregister the I2C device backing an encoder
+ * @drm_encoder: Encoder to be unregistered.
+ *
+ * This should be called from the @destroy method of an I2C slave
+ * encoder driver once I2C access is no longer needed.
+ */
+void drm_i2c_encoder_destroy(struct drm_encoder *drm_encoder)
+{
+ struct drm_encoder_slave *encoder = to_encoder_slave(drm_encoder);
+ struct i2c_client *client = drm_i2c_encoder_get_client(drm_encoder);
+ struct module *module = client->driver->driver.owner;
+
+ i2c_unregister_device(client);
+ encoder->bus_priv = NULL;
+
+ module_put(module);
+}
+EXPORT_SYMBOL(drm_i2c_encoder_destroy);
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
new file mode 100644
index 0000000..f546d1e
--- /dev/null
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -0,0 +1,1410 @@
+/*
+ * Copyright (c) 2006-2009 Red Hat Inc.
+ * Copyright (c) 2006-2008 Intel Corporation
+ * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
+ *
+ * DRM framebuffer helper functions
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ *
+ * Authors:
+ * Dave Airlie <airlied@linux.ie>
+ * Jesse Barnes <jesse.barnes@intel.com>
+ */
+#include <linux/kernel.h>
+#include <linux/sysrq.h>
+#include <linux/slab.h>
+#include <linux/fb.h>
+#include <linux/module.h>
+#include "drmP.h"
+#include "drm_crtc.h"
+#include "drm_fb_helper.h"
+#include "drm_crtc_helper.h"
+
+MODULE_AUTHOR("David Airlie, Jesse Barnes");
+MODULE_DESCRIPTION("DRM KMS helper");
+MODULE_LICENSE("GPL and additional rights");
+
+static LIST_HEAD(kernel_fb_helper_list);
+
+/* simple single crtc case helper function */
+int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
+{
+ struct drm_device *dev = fb_helper->dev;
+ struct drm_connector *connector;
+ int i;
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ struct drm_fb_helper_connector *fb_helper_connector;
+
+ fb_helper_connector = kzalloc(sizeof(struct drm_fb_helper_connector), GFP_KERNEL);
+ if (!fb_helper_connector)
+ goto fail;
+
+ fb_helper_connector->connector = connector;
+ fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector;
+ }
+ return 0;
+fail:
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ kfree(fb_helper->connector_info[i]);
+ fb_helper->connector_info[i] = NULL;
+ }
+ fb_helper->connector_count = 0;
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(drm_fb_helper_single_add_all_connectors);
+
+static int drm_fb_helper_parse_command_line(struct drm_fb_helper *fb_helper)
+{
+ struct drm_fb_helper_connector *fb_helper_conn;
+ int i;
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ struct drm_cmdline_mode *mode;
+ struct drm_connector *connector;
+ char *option = NULL;
+
+ fb_helper_conn = fb_helper->connector_info[i];
+ connector = fb_helper_conn->connector;
+ mode = &fb_helper_conn->cmdline_mode;
+
+ /* do something on return - turn off connector maybe */
+ if (fb_get_options(drm_get_connector_name(connector), &option))
+ continue;
+
+ if (drm_mode_parse_command_line_for_connector(option,
+ connector,
+ mode)) {
+ if (mode->force) {
+ const char *s;
+ switch (mode->force) {
+ case DRM_FORCE_OFF: s = "OFF"; break;
+ case DRM_FORCE_ON_DIGITAL: s = "ON - dig"; break;
+ default:
+ case DRM_FORCE_ON: s = "ON"; break;
+ }
+
+ DRM_INFO("forcing %s connector %s\n",
+ drm_get_connector_name(connector), s);
+ connector->force = mode->force;
+ }
+
+ DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n",
+ drm_get_connector_name(connector),
+ mode->xres, mode->yres,
+ mode->refresh_specified ? mode->refresh : 60,
+ mode->rb ? " reduced blanking" : "",
+ mode->margins ? " with margins" : "",
+ mode->interlace ? " interlaced" : "");
+ }
+
+ }
+ return 0;
+}
+
+static void drm_fb_helper_save_lut_atomic(struct drm_crtc *crtc, struct drm_fb_helper *helper)
+{
+ uint16_t *r_base, *g_base, *b_base;
+ int i;
+
+ r_base = crtc->gamma_store;
+ g_base = r_base + crtc->gamma_size;
+ b_base = g_base + crtc->gamma_size;
+
+ for (i = 0; i < crtc->gamma_size; i++)
+ helper->funcs->gamma_get(crtc, &r_base[i], &g_base[i], &b_base[i], i);
+}
+
+static void drm_fb_helper_restore_lut_atomic(struct drm_crtc *crtc)
+{
+ uint16_t *r_base, *g_base, *b_base;
+
+ if (crtc->funcs->gamma_set == NULL)
+ return;
+
+ r_base = crtc->gamma_store;
+ g_base = r_base + crtc->gamma_size;
+ b_base = g_base + crtc->gamma_size;
+
+ crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
+}
+
+int drm_fb_helper_debug_enter(struct fb_info *info)
+{
+ struct drm_fb_helper *helper = info->par;
+ struct drm_crtc_helper_funcs *funcs;
+ int i;
+
+ if (list_empty(&kernel_fb_helper_list))
+ return false;
+
+ list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) {
+ for (i = 0; i < helper->crtc_count; i++) {
+ struct drm_mode_set *mode_set =
+ &helper->crtc_info[i].mode_set;
+
+ if (!mode_set->crtc->enabled)
+ continue;
+
+ funcs = mode_set->crtc->helper_private;
+ drm_fb_helper_save_lut_atomic(mode_set->crtc, helper);
+ funcs->mode_set_base_atomic(mode_set->crtc,
+ mode_set->fb,
+ mode_set->x,
+ mode_set->y,
+ ENTER_ATOMIC_MODE_SET);
+ }
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_debug_enter);
+
+/* Find the real fb for a given fb helper CRTC */
+static struct drm_framebuffer *drm_mode_config_fb(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_crtc *c;
+
+ list_for_each_entry(c, &dev->mode_config.crtc_list, head) {
+ if (crtc->base.id == c->base.id)
+ return c->fb;
+ }
+
+ return NULL;
+}
+
+int drm_fb_helper_debug_leave(struct fb_info *info)
+{
+ struct drm_fb_helper *helper = info->par;
+ struct drm_crtc *crtc;
+ struct drm_crtc_helper_funcs *funcs;
+ struct drm_framebuffer *fb;
+ int i;
+
+ for (i = 0; i < helper->crtc_count; i++) {
+ struct drm_mode_set *mode_set = &helper->crtc_info[i].mode_set;
+ crtc = mode_set->crtc;
+ funcs = crtc->helper_private;
+ fb = drm_mode_config_fb(crtc);
+
+ if (!crtc->enabled)
+ continue;
+
+ if (!fb) {
+ DRM_ERROR("no fb to restore??\n");
+ continue;
+ }
+
+ drm_fb_helper_restore_lut_atomic(mode_set->crtc);
+ funcs->mode_set_base_atomic(mode_set->crtc, fb, crtc->x,
+ crtc->y, LEAVE_ATOMIC_MODE_SET);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_debug_leave);
+
+bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper)
+{
+ bool error = false;
+ int i, ret;
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set;
+ ret = mode_set->crtc->funcs->set_config(mode_set);
+ if (ret)
+ error = true;
+ }
+ return error;
+}
+EXPORT_SYMBOL(drm_fb_helper_restore_fbdev_mode);
+
+bool drm_fb_helper_force_kernel_mode(void)
+{
+ bool ret, error = false;
+ struct drm_fb_helper *helper;
+
+ if (list_empty(&kernel_fb_helper_list))
+ return false;
+
+ list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) {
+ if (helper->dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+ continue;
+
+ ret = drm_fb_helper_restore_fbdev_mode(helper);
+ if (ret)
+ error = true;
+ }
+ return error;
+}
+
+int drm_fb_helper_panic(struct notifier_block *n, unsigned long ununsed,
+ void *panic_str)
+{
+ /*
+ * It's a waste of time and effort to switch back to text console
+ * if the kernel should reboot before panic messages can be seen.
+ */
+ if (panic_timeout < 0)
+ return 0;
+
+ printk(KERN_ERR "panic occurred, switching back to text console\n");
+ return drm_fb_helper_force_kernel_mode();
+}
+EXPORT_SYMBOL(drm_fb_helper_panic);
+
+static struct notifier_block paniced = {
+ .notifier_call = drm_fb_helper_panic,
+};
+
+/**
+ * drm_fb_helper_restore - restore the framebuffer console (kernel) config
+ *
+ * Restore's the kernel's fbcon mode, used for lastclose & panic paths.
+ */
+void drm_fb_helper_restore(void)
+{
+ bool ret;
+ ret = drm_fb_helper_force_kernel_mode();
+ if (ret == true)
+ DRM_ERROR("Failed to restore crtc configuration\n");
+}
+EXPORT_SYMBOL(drm_fb_helper_restore);
+
+#ifdef CONFIG_MAGIC_SYSRQ
+static void drm_fb_helper_restore_work_fn(struct work_struct *ignored)
+{
+ drm_fb_helper_restore();
+}
+static DECLARE_WORK(drm_fb_helper_restore_work, drm_fb_helper_restore_work_fn);
+
+static void drm_fb_helper_sysrq(int dummy1)
+{
+ schedule_work(&drm_fb_helper_restore_work);
+}
+
+static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = {
+ .handler = drm_fb_helper_sysrq,
+ .help_msg = "force-fb(V)",
+ .action_msg = "Restore framebuffer console",
+};
+#else
+static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { };
+#endif
+
+static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+ struct drm_device *dev = fb_helper->dev;
+ struct drm_crtc *crtc;
+ struct drm_connector *connector;
+ int i, j;
+
+ /*
+ * For each CRTC in this fb, turn the connectors on/off.
+ */
+ mutex_lock(&dev->mode_config.mutex);
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ crtc = fb_helper->crtc_info[i].mode_set.crtc;
+
+ if (!crtc->enabled)
+ continue;
+
+ /* Walk the connectors & encoders on this fb turning them on/off */
+ for (j = 0; j < fb_helper->connector_count; j++) {
+ connector = fb_helper->connector_info[j]->connector;
+ drm_helper_connector_dpms(connector, dpms_mode);
+ drm_connector_property_set_value(connector,
+ dev->mode_config.dpms_property, dpms_mode);
+ }
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+}
+
+int drm_fb_helper_blank(int blank, struct fb_info *info)
+{
+ switch (blank) {
+ /* Display: On; HSync: On, VSync: On */
+ case FB_BLANK_UNBLANK:
+ drm_fb_helper_dpms(info, DRM_MODE_DPMS_ON);
+ break;
+ /* Display: Off; HSync: On, VSync: On */
+ case FB_BLANK_NORMAL:
+ drm_fb_helper_dpms(info, DRM_MODE_DPMS_STANDBY);
+ break;
+ /* Display: Off; HSync: Off, VSync: On */
+ case FB_BLANK_HSYNC_SUSPEND:
+ drm_fb_helper_dpms(info, DRM_MODE_DPMS_STANDBY);
+ break;
+ /* Display: Off; HSync: On, VSync: Off */
+ case FB_BLANK_VSYNC_SUSPEND:
+ drm_fb_helper_dpms(info, DRM_MODE_DPMS_SUSPEND);
+ break;
+ /* Display: Off; HSync: Off, VSync: Off */
+ case FB_BLANK_POWERDOWN:
+ drm_fb_helper_dpms(info, DRM_MODE_DPMS_OFF);
+ break;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_blank);
+
+static void drm_fb_helper_crtc_free(struct drm_fb_helper *helper)
+{
+ int i;
+
+ for (i = 0; i < helper->connector_count; i++)
+ kfree(helper->connector_info[i]);
+ kfree(helper->connector_info);
+ for (i = 0; i < helper->crtc_count; i++) {
+ kfree(helper->crtc_info[i].mode_set.connectors);
+ if (helper->crtc_info[i].mode_set.mode)
+ drm_mode_destroy(helper->dev, helper->crtc_info[i].mode_set.mode);
+ }
+ kfree(helper->crtc_info);
+}
+
+int drm_fb_helper_init(struct drm_device *dev,
+ struct drm_fb_helper *fb_helper,
+ int crtc_count, int max_conn_count)
+{
+ struct drm_crtc *crtc;
+ int i;
+
+ fb_helper->dev = dev;
+
+ INIT_LIST_HEAD(&fb_helper->kernel_fb_list);
+
+ fb_helper->crtc_info = kcalloc(crtc_count, sizeof(struct drm_fb_helper_crtc), GFP_KERNEL);
+ if (!fb_helper->crtc_info)
+ return -ENOMEM;
+
+ fb_helper->crtc_count = crtc_count;
+ fb_helper->connector_info = kcalloc(dev->mode_config.num_connector, sizeof(struct drm_fb_helper_connector *), GFP_KERNEL);
+ if (!fb_helper->connector_info) {
+ kfree(fb_helper->crtc_info);
+ return -ENOMEM;
+ }
+ fb_helper->connector_count = 0;
+
+ for (i = 0; i < crtc_count; i++) {
+ fb_helper->crtc_info[i].mode_set.connectors =
+ kcalloc(max_conn_count,
+ sizeof(struct drm_connector *),
+ GFP_KERNEL);
+
+ if (!fb_helper->crtc_info[i].mode_set.connectors)
+ goto out_free;
+ fb_helper->crtc_info[i].mode_set.num_connectors = 0;
+ }
+
+ i = 0;
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ fb_helper->crtc_info[i].mode_set.crtc = crtc;
+ i++;
+ }
+
+ return 0;
+out_free:
+ drm_fb_helper_crtc_free(fb_helper);
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(drm_fb_helper_init);
+
+void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)
+{
+ if (!list_empty(&fb_helper->kernel_fb_list)) {
+ list_del(&fb_helper->kernel_fb_list);
+ if (list_empty(&kernel_fb_helper_list)) {
+ printk(KERN_INFO "drm: unregistered panic notifier\n");
+ atomic_notifier_chain_unregister(&panic_notifier_list,
+ &paniced);
+ unregister_sysrq_key('v', &sysrq_drm_fb_helper_restore_op);
+ }
+ }
+
+ drm_fb_helper_crtc_free(fb_helper);
+
+}
+EXPORT_SYMBOL(drm_fb_helper_fini);
+
+static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green,
+ u16 blue, u16 regno, struct fb_info *info)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+ struct drm_framebuffer *fb = fb_helper->fb;
+ int pindex;
+
+ if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
+ u32 *palette;
+ u32 value;
+ /* place color in psuedopalette */
+ if (regno > 16)
+ return -EINVAL;
+ palette = (u32 *)info->pseudo_palette;
+ red >>= (16 - info->var.red.length);
+ green >>= (16 - info->var.green.length);
+ blue >>= (16 - info->var.blue.length);
+ value = (red << info->var.red.offset) |
+ (green << info->var.green.offset) |
+ (blue << info->var.blue.offset);
+ if (info->var.transp.length > 0) {
+ u32 mask = (1 << info->var.transp.length) - 1;
+ mask <<= info->var.transp.offset;
+ value |= mask;
+ }
+ palette[regno] = value;
+ return 0;
+ }
+
+ pindex = regno;
+
+ if (fb->bits_per_pixel == 16) {
+ pindex = regno << 3;
+
+ if (fb->depth == 16 && regno > 63)
+ return -EINVAL;
+ if (fb->depth == 15 && regno > 31)
+ return -EINVAL;
+
+ if (fb->depth == 16) {
+ u16 r, g, b;
+ int i;
+ if (regno < 32) {
+ for (i = 0; i < 8; i++)
+ fb_helper->funcs->gamma_set(crtc, red,
+ green, blue, pindex + i);
+ }
+
+ fb_helper->funcs->gamma_get(crtc, &r,
+ &g, &b,
+ pindex >> 1);
+
+ for (i = 0; i < 4; i++)
+ fb_helper->funcs->gamma_set(crtc, r,
+ green, b,
+ (pindex >> 1) + i);
+ }
+ }
+
+ if (fb->depth != 16)
+ fb_helper->funcs->gamma_set(crtc, red, green, blue, pindex);
+ return 0;
+}
+
+int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+ struct drm_crtc_helper_funcs *crtc_funcs;
+ u16 *red, *green, *blue, *transp;
+ struct drm_crtc *crtc;
+ int i, j, rc = 0;
+ int start;
+
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ crtc = fb_helper->crtc_info[i].mode_set.crtc;
+ crtc_funcs = crtc->helper_private;
+
+ red = cmap->red;
+ green = cmap->green;
+ blue = cmap->blue;
+ transp = cmap->transp;
+ start = cmap->start;
+
+ for (j = 0; j < cmap->len; j++) {
+ u16 hred, hgreen, hblue, htransp = 0xffff;
+
+ hred = *red++;
+ hgreen = *green++;
+ hblue = *blue++;
+
+ if (transp)
+ htransp = *transp++;
+
+ rc = setcolreg(crtc, hred, hgreen, hblue, start++, info);
+ if (rc)
+ return rc;
+ }
+ crtc_funcs->load_lut(crtc);
+ }
+ return rc;
+}
+EXPORT_SYMBOL(drm_fb_helper_setcmap);
+
+int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+ struct drm_framebuffer *fb = fb_helper->fb;
+ int depth;
+
+ if (var->pixclock != 0 || in_dbg_master())
+ return -EINVAL;
+
+ /* Need to resize the fb object !!! */
+ if (var->bits_per_pixel > fb->bits_per_pixel ||
+ var->xres > fb->width || var->yres > fb->height ||
+ var->xres_virtual > fb->width || var->yres_virtual > fb->height) {
+ DRM_DEBUG("fb userspace requested width/height/bpp is greater than current fb "
+ "request %dx%d-%d (virtual %dx%d) > %dx%d-%d\n",
+ var->xres, var->yres, var->bits_per_pixel,
+ var->xres_virtual, var->yres_virtual,
+ fb->width, fb->height, fb->bits_per_pixel);
+ return -EINVAL;
+ }
+
+ switch (var->bits_per_pixel) {
+ case 16:
+ depth = (var->green.length == 6) ? 16 : 15;
+ break;
+ case 32:
+ depth = (var->transp.length > 0) ? 32 : 24;
+ break;
+ default:
+ depth = var->bits_per_pixel;
+ break;
+ }
+
+ switch (depth) {
+ case 8:
+ var->red.offset = 0;
+ var->green.offset = 0;
+ var->blue.offset = 0;
+ var->red.length = 8;
+ var->green.length = 8;
+ var->blue.length = 8;
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ break;
+ case 15:
+ var->red.offset = 10;
+ var->green.offset = 5;
+ var->blue.offset = 0;
+ var->red.length = 5;
+ var->green.length = 5;
+ var->blue.length = 5;
+ var->transp.length = 1;
+ var->transp.offset = 15;
+ break;
+ case 16:
+ var->red.offset = 11;
+ var->green.offset = 5;
+ var->blue.offset = 0;
+ var->red.length = 5;
+ var->green.length = 6;
+ var->blue.length = 5;
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ break;
+ case 24:
+ var->red.offset = 16;
+ var->green.offset = 8;
+ var->blue.offset = 0;
+ var->red.length = 8;
+ var->green.length = 8;
+ var->blue.length = 8;
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ break;
+ case 32:
+ var->red.offset = 16;
+ var->green.offset = 8;
+ var->blue.offset = 0;
+ var->red.length = 8;
+ var->green.length = 8;
+ var->blue.length = 8;
+ var->transp.length = 8;
+ var->transp.offset = 24;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_check_var);
+
+/* this will let fbcon do the mode init */
+int drm_fb_helper_set_par(struct fb_info *info)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+ struct drm_device *dev = fb_helper->dev;
+ struct fb_var_screeninfo *var = &info->var;
+ struct drm_crtc *crtc;
+ int ret;
+ int i;
+
+ if (var->pixclock != 0) {
+ DRM_ERROR("PIXEL CLOCK SET\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->mode_config.mutex);
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ crtc = fb_helper->crtc_info[i].mode_set.crtc;
+ ret = crtc->funcs->set_config(&fb_helper->crtc_info[i].mode_set);
+ if (ret) {
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+ }
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+
+ if (fb_helper->delayed_hotplug) {
+ fb_helper->delayed_hotplug = false;
+ drm_fb_helper_hotplug_event(fb_helper);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_set_par);
+
+int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ struct drm_fb_helper *fb_helper = info->par;
+ struct drm_device *dev = fb_helper->dev;
+ struct drm_mode_set *modeset;
+ struct drm_crtc *crtc;
+ int ret = 0;
+ int i;
+
+ mutex_lock(&dev->mode_config.mutex);
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ crtc = fb_helper->crtc_info[i].mode_set.crtc;
+
+ modeset = &fb_helper->crtc_info[i].mode_set;
+
+ modeset->x = var->xoffset;
+ modeset->y = var->yoffset;
+
+ if (modeset->num_connectors) {
+ ret = crtc->funcs->set_config(modeset);
+ if (!ret) {
+ info->var.xoffset = var->xoffset;
+ info->var.yoffset = var->yoffset;
+ }
+ }
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
+EXPORT_SYMBOL(drm_fb_helper_pan_display);
+
+int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
+ int preferred_bpp)
+{
+ int new_fb = 0;
+ int crtc_count = 0;
+ int i;
+ struct fb_info *info;
+ struct drm_fb_helper_surface_size sizes;
+ int gamma_size = 0;
+
+ memset(&sizes, 0, sizeof(struct drm_fb_helper_surface_size));
+ sizes.surface_depth = 24;
+ sizes.surface_bpp = 32;
+ sizes.fb_width = (unsigned)-1;
+ sizes.fb_height = (unsigned)-1;
+
+ /* if driver picks 8 or 16 by default use that
+ for both depth/bpp */
+ if (preferred_bpp != sizes.surface_bpp) {
+ sizes.surface_depth = sizes.surface_bpp = preferred_bpp;
+ }
+ /* first up get a count of crtcs now in use and new min/maxes width/heights */
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ struct drm_fb_helper_connector *fb_helper_conn = fb_helper->connector_info[i];
+ struct drm_cmdline_mode *cmdline_mode;
+
+ cmdline_mode = &fb_helper_conn->cmdline_mode;
+
+ if (cmdline_mode->bpp_specified) {
+ switch (cmdline_mode->bpp) {
+ case 8:
+ sizes.surface_depth = sizes.surface_bpp = 8;
+ break;
+ case 15:
+ sizes.surface_depth = 15;
+ sizes.surface_bpp = 16;
+ break;
+ case 16:
+ sizes.surface_depth = sizes.surface_bpp = 16;
+ break;
+ case 24:
+ sizes.surface_depth = sizes.surface_bpp = 24;
+ break;
+ case 32:
+ sizes.surface_depth = 24;
+ sizes.surface_bpp = 32;
+ break;
+ }
+ break;
+ }
+ }
+
+ crtc_count = 0;
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ struct drm_display_mode *desired_mode;
+ desired_mode = fb_helper->crtc_info[i].desired_mode;
+
+ if (desired_mode) {
+ if (gamma_size == 0)
+ gamma_size = fb_helper->crtc_info[i].mode_set.crtc->gamma_size;
+ if (desired_mode->hdisplay < sizes.fb_width)
+ sizes.fb_width = desired_mode->hdisplay;
+ if (desired_mode->vdisplay < sizes.fb_height)
+ sizes.fb_height = desired_mode->vdisplay;
+ if (desired_mode->hdisplay > sizes.surface_width)
+ sizes.surface_width = desired_mode->hdisplay;
+ if (desired_mode->vdisplay > sizes.surface_height)
+ sizes.surface_height = desired_mode->vdisplay;
+ crtc_count++;
+ }
+ }
+
+ if (crtc_count == 0 || sizes.fb_width == -1 || sizes.fb_height == -1) {
+ /* hmm everyone went away - assume VGA cable just fell out
+ and will come back later. */
+ DRM_INFO("Cannot find any crtc or sizes - going 1024x768\n");
+ sizes.fb_width = sizes.surface_width = 1024;
+ sizes.fb_height = sizes.surface_height = 768;
+ }
+
+ /* push down into drivers */
+ new_fb = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes);
+ if (new_fb < 0)
+ return new_fb;
+
+ info = fb_helper->fbdev;
+
+ /* set the fb pointer */
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ fb_helper->crtc_info[i].mode_set.fb = fb_helper->fb;
+ }
+
+ if (new_fb) {
+ info->var.pixclock = 0;
+ if (register_framebuffer(info) < 0) {
+ return -EINVAL;
+ }
+
+ printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
+ info->fix.id);
+
+ } else {
+ drm_fb_helper_set_par(info);
+ }
+
+ /* Switch back to kernel console on panic */
+ /* multi card linked list maybe */
+ if (list_empty(&kernel_fb_helper_list)) {
+ printk(KERN_INFO "drm: registered panic notifier\n");
+ atomic_notifier_chain_register(&panic_notifier_list,
+ &paniced);
+ register_sysrq_key('v', &sysrq_drm_fb_helper_restore_op);
+ }
+ if (new_fb)
+ list_add(&fb_helper->kernel_fb_list, &kernel_fb_helper_list);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_single_fb_probe);
+
+void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
+ uint32_t depth)
+{
+ info->fix.type = FB_TYPE_PACKED_PIXELS;
+ info->fix.visual = depth == 8 ? FB_VISUAL_PSEUDOCOLOR :
+ FB_VISUAL_TRUECOLOR;
+ info->fix.mmio_start = 0;
+ info->fix.mmio_len = 0;
+ info->fix.type_aux = 0;
+ info->fix.xpanstep = 1; /* doing it in hw */
+ info->fix.ypanstep = 1; /* doing it in hw */
+ info->fix.ywrapstep = 0;
+ info->fix.accel = FB_ACCEL_NONE;
+ info->fix.type_aux = 0;
+
+ info->fix.line_length = pitch;
+ return;
+}
+EXPORT_SYMBOL(drm_fb_helper_fill_fix);
+
+void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
+ uint32_t fb_width, uint32_t fb_height)
+{
+ struct drm_framebuffer *fb = fb_helper->fb;
+ info->pseudo_palette = fb_helper->pseudo_palette;
+ info->var.xres_virtual = fb->width;
+ info->var.yres_virtual = fb->height;
+ info->var.bits_per_pixel = fb->bits_per_pixel;
+ info->var.accel_flags = FB_ACCELF_TEXT;
+ info->var.xoffset = 0;
+ info->var.yoffset = 0;
+ info->var.activate = FB_ACTIVATE_NOW;
+ info->var.height = -1;
+ info->var.width = -1;
+
+ switch (fb->depth) {
+ case 8:
+ info->var.red.offset = 0;
+ info->var.green.offset = 0;
+ info->var.blue.offset = 0;
+ info->var.red.length = 8; /* 8bit DAC */
+ info->var.green.length = 8;
+ info->var.blue.length = 8;
+ info->var.transp.offset = 0;
+ info->var.transp.length = 0;
+ break;
+ case 15:
+ info->var.red.offset = 10;
+ info->var.green.offset = 5;
+ info->var.blue.offset = 0;
+ info->var.red.length = 5;
+ info->var.green.length = 5;
+ info->var.blue.length = 5;
+ info->var.transp.offset = 15;
+ info->var.transp.length = 1;
+ break;
+ case 16:
+ info->var.red.offset = 11;
+ info->var.green.offset = 5;
+ info->var.blue.offset = 0;
+ info->var.red.length = 5;
+ info->var.green.length = 6;
+ info->var.blue.length = 5;
+ info->var.transp.offset = 0;
+ break;
+ case 24:
+ info->var.red.offset = 16;
+ info->var.green.offset = 8;
+ info->var.blue.offset = 0;
+ info->var.red.length = 8;
+ info->var.green.length = 8;
+ info->var.blue.length = 8;
+ info->var.transp.offset = 0;
+ info->var.transp.length = 0;
+ break;
+ case 32:
+ info->var.red.offset = 16;
+ info->var.green.offset = 8;
+ info->var.blue.offset = 0;
+ info->var.red.length = 8;
+ info->var.green.length = 8;
+ info->var.blue.length = 8;
+ info->var.transp.offset = 24;
+ info->var.transp.length = 8;
+ break;
+ default:
+ break;
+ }
+
+ info->var.xres = fb_width;
+ info->var.yres = fb_height;
+}
+EXPORT_SYMBOL(drm_fb_helper_fill_var);
+
+static int drm_fb_helper_probe_connector_modes(struct drm_fb_helper *fb_helper,
+ uint32_t maxX,
+ uint32_t maxY)
+{
+ struct drm_connector *connector;
+ int count = 0;
+ int i;
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ connector = fb_helper->connector_info[i]->connector;
+ count += connector->funcs->fill_modes(connector, maxX, maxY);
+ }
+
+ return count;
+}
+
+static struct drm_display_mode *drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector, int width, int height)
+{
+ struct drm_display_mode *mode;
+
+ list_for_each_entry(mode, &fb_connector->connector->modes, head) {
+ if (drm_mode_width(mode) > width ||
+ drm_mode_height(mode) > height)
+ continue;
+ if (mode->type & DRM_MODE_TYPE_PREFERRED)
+ return mode;
+ }
+ return NULL;
+}
+
+static bool drm_has_cmdline_mode(struct drm_fb_helper_connector *fb_connector)
+{
+ struct drm_cmdline_mode *cmdline_mode;
+ cmdline_mode = &fb_connector->cmdline_mode;
+ return cmdline_mode->specified;
+}
+
+static struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn,
+ int width, int height)
+{
+ struct drm_cmdline_mode *cmdline_mode;
+ struct drm_display_mode *mode = NULL;
+
+ cmdline_mode = &fb_helper_conn->cmdline_mode;
+ if (cmdline_mode->specified == false)
+ return mode;
+
+ /* attempt to find a matching mode in the list of modes
+ * we have gotten so far, if not add a CVT mode that conforms
+ */
+ if (cmdline_mode->rb || cmdline_mode->margins)
+ goto create_mode;
+
+ list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) {
+ /* check width/height */
+ if (mode->hdisplay != cmdline_mode->xres ||
+ mode->vdisplay != cmdline_mode->yres)
+ continue;
+
+ if (cmdline_mode->refresh_specified) {
+ if (mode->vrefresh != cmdline_mode->refresh)
+ continue;
+ }
+
+ if (cmdline_mode->interlace) {
+ if (!(mode->flags & DRM_MODE_FLAG_INTERLACE))
+ continue;
+ }
+ return mode;
+ }
+
+create_mode:
+ mode = drm_mode_create_from_cmdline_mode(fb_helper_conn->connector->dev,
+ cmdline_mode);
+ list_add(&mode->head, &fb_helper_conn->connector->modes);
+ return mode;
+}
+
+static bool drm_connector_enabled(struct drm_connector *connector, bool strict)
+{
+ bool enable;
+
+ if (strict) {
+ enable = connector->status == connector_status_connected;
+ } else {
+ enable = connector->status != connector_status_disconnected;
+ }
+ return enable;
+}
+
+static void drm_enable_connectors(struct drm_fb_helper *fb_helper,
+ bool *enabled)
+{
+ bool any_enabled = false;
+ struct drm_connector *connector;
+ int i = 0;
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ connector = fb_helper->connector_info[i]->connector;
+ enabled[i] = drm_connector_enabled(connector, true);
+ DRM_DEBUG_KMS("connector %d enabled? %s\n", connector->base.id,
+ enabled[i] ? "yes" : "no");
+ any_enabled |= enabled[i];
+ }
+
+ if (any_enabled)
+ return;
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ connector = fb_helper->connector_info[i]->connector;
+ enabled[i] = drm_connector_enabled(connector, false);
+ }
+}
+
+static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
+ struct drm_display_mode **modes,
+ bool *enabled, int width, int height)
+{
+ int count, i, j;
+ bool can_clone = false;
+ struct drm_fb_helper_connector *fb_helper_conn;
+ struct drm_display_mode *dmt_mode, *mode;
+
+ /* only contemplate cloning in the single crtc case */
+ if (fb_helper->crtc_count > 1)
+ return false;
+
+ count = 0;
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ if (enabled[i])
+ count++;
+ }
+
+ /* only contemplate cloning if more than one connector is enabled */
+ if (count <= 1)
+ return false;
+
+ /* check the command line or if nothing common pick 1024x768 */
+ can_clone = true;
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ if (!enabled[i])
+ continue;
+ fb_helper_conn = fb_helper->connector_info[i];
+ modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height);
+ if (!modes[i]) {
+ can_clone = false;
+ break;
+ }
+ for (j = 0; j < i; j++) {
+ if (!enabled[j])
+ continue;
+ if (!drm_mode_equal(modes[j], modes[i]))
+ can_clone = false;
+ }
+ }
+
+ if (can_clone) {
+ DRM_DEBUG_KMS("can clone using command line\n");
+ return true;
+ }
+
+ /* try and find a 1024x768 mode on each connector */
+ can_clone = true;
+ dmt_mode = drm_mode_find_dmt(fb_helper->dev, 1024, 768, 60, false);
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+
+ if (!enabled[i])
+ continue;
+
+ fb_helper_conn = fb_helper->connector_info[i];
+ list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) {
+ if (drm_mode_equal(mode, dmt_mode))
+ modes[i] = mode;
+ }
+ if (!modes[i])
+ can_clone = false;
+ }
+
+ if (can_clone) {
+ DRM_DEBUG_KMS("can clone using 1024x768\n");
+ return true;
+ }
+ DRM_INFO("kms: can't enable cloning when we probably wanted to.\n");
+ return false;
+}
+
+static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
+ struct drm_display_mode **modes,
+ bool *enabled, int width, int height)
+{
+ struct drm_fb_helper_connector *fb_helper_conn;
+ int i;
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ fb_helper_conn = fb_helper->connector_info[i];
+
+ if (enabled[i] == false)
+ continue;
+
+ DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n",
+ fb_helper_conn->connector->base.id);
+
+ /* got for command line mode first */
+ modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height);
+ if (!modes[i]) {
+ DRM_DEBUG_KMS("looking for preferred mode on connector %d\n",
+ fb_helper_conn->connector->base.id);
+ modes[i] = drm_has_preferred_mode(fb_helper_conn, width, height);
+ }
+ /* No preferred modes, pick one off the list */
+ if (!modes[i] && !list_empty(&fb_helper_conn->connector->modes)) {
+ list_for_each_entry(modes[i], &fb_helper_conn->connector->modes, head)
+ break;
+ }
+ DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name :
+ "none");
+ }
+ return true;
+}
+
+static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
+ struct drm_fb_helper_crtc **best_crtcs,
+ struct drm_display_mode **modes,
+ int n, int width, int height)
+{
+ int c, o;
+ struct drm_device *dev = fb_helper->dev;
+ struct drm_connector *connector;
+ struct drm_connector_helper_funcs *connector_funcs;
+ struct drm_encoder *encoder;
+ struct drm_fb_helper_crtc *best_crtc;
+ int my_score, best_score, score;
+ struct drm_fb_helper_crtc **crtcs, *crtc;
+ struct drm_fb_helper_connector *fb_helper_conn;
+
+ if (n == fb_helper->connector_count)
+ return 0;
+
+ fb_helper_conn = fb_helper->connector_info[n];
+ connector = fb_helper_conn->connector;
+
+ best_crtcs[n] = NULL;
+ best_crtc = NULL;
+ best_score = drm_pick_crtcs(fb_helper, best_crtcs, modes, n+1, width, height);
+ if (modes[n] == NULL)
+ return best_score;
+
+ crtcs = kzalloc(dev->mode_config.num_connector *
+ sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL);
+ if (!crtcs)
+ return best_score;
+
+ my_score = 1;
+ if (connector->status == connector_status_connected)
+ my_score++;
+ if (drm_has_cmdline_mode(fb_helper_conn))
+ my_score++;
+ if (drm_has_preferred_mode(fb_helper_conn, width, height))
+ my_score++;
+
+ connector_funcs = connector->helper_private;
+ encoder = connector_funcs->best_encoder(connector);
+ if (!encoder)
+ goto out;
+
+ /* select a crtc for this connector and then attempt to configure
+ remaining connectors */
+ for (c = 0; c < fb_helper->crtc_count; c++) {
+ crtc = &fb_helper->crtc_info[c];
+
+ if ((encoder->possible_crtcs & (1 << c)) == 0) {
+ continue;
+ }
+
+ for (o = 0; o < n; o++)
+ if (best_crtcs[o] == crtc)
+ break;
+
+ if (o < n) {
+ /* ignore cloning unless only a single crtc */
+ if (fb_helper->crtc_count > 1)
+ continue;
+
+ if (!drm_mode_equal(modes[o], modes[n]))
+ continue;
+ }
+
+ crtcs[n] = crtc;
+ memcpy(crtcs, best_crtcs, n * sizeof(struct drm_fb_helper_crtc *));
+ score = my_score + drm_pick_crtcs(fb_helper, crtcs, modes, n + 1,
+ width, height);
+ if (score > best_score) {
+ best_crtc = crtc;
+ best_score = score;
+ memcpy(best_crtcs, crtcs,
+ dev->mode_config.num_connector *
+ sizeof(struct drm_fb_helper_crtc *));
+ }
+ }
+out:
+ kfree(crtcs);
+ return best_score;
+}
+
+static void drm_setup_crtcs(struct drm_fb_helper *fb_helper)
+{
+ struct drm_device *dev = fb_helper->dev;
+ struct drm_fb_helper_crtc **crtcs;
+ struct drm_display_mode **modes;
+ struct drm_encoder *encoder;
+ struct drm_mode_set *modeset;
+ bool *enabled;
+ int width, height;
+ int i, ret;
+
+ DRM_DEBUG_KMS("\n");
+
+ width = dev->mode_config.max_width;
+ height = dev->mode_config.max_height;
+
+ /* clean out all the encoder/crtc combos */
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ encoder->crtc = NULL;
+ }
+
+ crtcs = kcalloc(dev->mode_config.num_connector,
+ sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL);
+ modes = kcalloc(dev->mode_config.num_connector,
+ sizeof(struct drm_display_mode *), GFP_KERNEL);
+ enabled = kcalloc(dev->mode_config.num_connector,
+ sizeof(bool), GFP_KERNEL);
+
+ drm_enable_connectors(fb_helper, enabled);
+
+ ret = drm_target_cloned(fb_helper, modes, enabled, width, height);
+ if (!ret) {
+ ret = drm_target_preferred(fb_helper, modes, enabled, width, height);
+ if (!ret)
+ DRM_ERROR("Unable to find initial modes\n");
+ }
+
+ DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n", width, height);
+
+ drm_pick_crtcs(fb_helper, crtcs, modes, 0, width, height);
+
+ /* need to set the modesets up here for use later */
+ /* fill out the connector<->crtc mappings into the modesets */
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ modeset = &fb_helper->crtc_info[i].mode_set;
+ modeset->num_connectors = 0;
+ }
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ struct drm_display_mode *mode = modes[i];
+ struct drm_fb_helper_crtc *fb_crtc = crtcs[i];
+ modeset = &fb_crtc->mode_set;
+
+ if (mode && fb_crtc) {
+ DRM_DEBUG_KMS("desired mode %s set on crtc %d\n",
+ mode->name, fb_crtc->mode_set.crtc->base.id);
+ fb_crtc->desired_mode = mode;
+ if (modeset->mode)
+ drm_mode_destroy(dev, modeset->mode);
+ modeset->mode = drm_mode_duplicate(dev,
+ fb_crtc->desired_mode);
+ modeset->connectors[modeset->num_connectors++] = fb_helper->connector_info[i]->connector;
+ }
+ }
+
+ kfree(crtcs);
+ kfree(modes);
+ kfree(enabled);
+}
+
+/**
+ * drm_helper_initial_config - setup a sane initial connector configuration
+ * @dev: DRM device
+ *
+ * LOCKING:
+ * Called at init time, must take mode config lock.
+ *
+ * Scan the CRTCs and connectors and try to put together an initial setup.
+ * At the moment, this is a cloned configuration across all heads with
+ * a new framebuffer object as the backing store.
+ *
+ * RETURNS:
+ * Zero if everything went ok, nonzero otherwise.
+ */
+bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel)
+{
+ struct drm_device *dev = fb_helper->dev;
+ int count = 0;
+
+ /* disable all the possible outputs/crtcs before entering KMS mode */
+ drm_helper_disable_unused_functions(fb_helper->dev);
+
+ drm_fb_helper_parse_command_line(fb_helper);
+
+ count = drm_fb_helper_probe_connector_modes(fb_helper,
+ dev->mode_config.max_width,
+ dev->mode_config.max_height);
+ /*
+ * we shouldn't end up with no modes here.
+ */
+ if (count == 0) {
+ printk(KERN_INFO "No connectors reported connected with modes\n");
+ }
+ drm_setup_crtcs(fb_helper);
+
+ return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel);
+}
+EXPORT_SYMBOL(drm_fb_helper_initial_config);
+
+/**
+ * drm_fb_helper_hotplug_event - respond to a hotplug notification by
+ * probing all the outputs attached to the fb.
+ * @fb_helper: the drm_fb_helper
+ *
+ * LOCKING:
+ * Called at runtime, must take mode config lock.
+ *
+ * Scan the connectors attached to the fb_helper and try to put together a
+ * setup after *notification of a change in output configuration.
+ *
+ * RETURNS:
+ * 0 on success and a non-zero error code otherwise.
+ */
+int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)
+{
+ struct drm_device *dev = fb_helper->dev;
+ int count = 0;
+ u32 max_width, max_height, bpp_sel;
+ int bound = 0, crtcs_bound = 0;
+ struct drm_crtc *crtc;
+
+ if (!fb_helper->fb)
+ return 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ if (crtc->fb)
+ crtcs_bound++;
+ if (crtc->fb == fb_helper->fb)
+ bound++;
+ }
+
+ if (bound < crtcs_bound) {
+ fb_helper->delayed_hotplug = true;
+ mutex_unlock(&dev->mode_config.mutex);
+ return 0;
+ }
+ DRM_DEBUG_KMS("\n");
+
+ max_width = fb_helper->fb->width;
+ max_height = fb_helper->fb->height;
+ bpp_sel = fb_helper->fb->bits_per_pixel;
+
+ count = drm_fb_helper_probe_connector_modes(fb_helper, max_width,
+ max_height);
+ drm_setup_crtcs(fb_helper);
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel);
+}
+EXPORT_SYMBOL(drm_fb_helper_hotplug_event);
+
+/* The Kconfig DRM_KMS_HELPER selects FRAMEBUFFER_CONSOLE (if !EXPERT)
+ * but the module doesn't depend on any fb console symbols. At least
+ * attempt to load fbcon to avoid leaving the system without a usable console.
+ */
+#if defined(CONFIG_FRAMEBUFFER_CONSOLE_MODULE) && !defined(CONFIG_EXPERT)
+static int __init drm_fb_helper_modinit(void)
+{
+ const char *name = "fbcon";
+ struct module *fbcon;
+
+ mutex_lock(&module_mutex);
+ fbcon = find_module(name);
+ mutex_unlock(&module_mutex);
+
+ if (!fbcon)
+ request_module_nowait(name);
+ return 0;
+}
+
+module_init(drm_fb_helper_modinit);
+#endif
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
new file mode 100644
index 0000000..5062eec
--- /dev/null
+++ b/drivers/gpu/drm/drm_fops.c
@@ -0,0 +1,620 @@
+/**
+ * \file drm_fops.c
+ * File operations for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Daryll Strauss <daryll@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Mon Jan 4 08:58:31 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include <linux/poll.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+/* from BKL pushdown: note that nothing else serializes idr_find() */
+DEFINE_MUTEX(drm_global_mutex);
+EXPORT_SYMBOL(drm_global_mutex);
+
+static int drm_open_helper(struct inode *inode, struct file *filp,
+ struct drm_device * dev);
+
+static int drm_setup(struct drm_device * dev)
+{
+ int i;
+ int ret;
+
+ if (dev->driver->firstopen) {
+ ret = dev->driver->firstopen(dev);
+ if (ret != 0)
+ return ret;
+ }
+
+ atomic_set(&dev->ioctl_count, 0);
+ atomic_set(&dev->vma_count, 0);
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+ !drm_core_check_feature(dev, DRIVER_MODESET)) {
+ dev->buf_use = 0;
+ atomic_set(&dev->buf_alloc, 0);
+
+ i = drm_dma_setup(dev);
+ if (i < 0)
+ return i;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(dev->counts); i++)
+ atomic_set(&dev->counts[i], 0);
+
+ dev->sigdata.lock = NULL;
+
+ dev->context_flag = 0;
+ dev->interrupt_flag = 0;
+ dev->dma_flag = 0;
+ dev->last_context = 0;
+ dev->last_switch = 0;
+ dev->last_checked = 0;
+ init_waitqueue_head(&dev->context_wait);
+ dev->if_version = 0;
+
+ dev->ctx_start = 0;
+ dev->lck_start = 0;
+
+ dev->buf_async = NULL;
+ init_waitqueue_head(&dev->buf_readers);
+ init_waitqueue_head(&dev->buf_writers);
+
+ DRM_DEBUG("\n");
+
+ /*
+ * The kernel's context could be created here, but is now created
+ * in drm_dma_enqueue. This is more resource-efficient for
+ * hardware that does not do DMA, but may mean that
+ * drm_select_queue fails between the time the interrupt is
+ * initialized and the time the queues are initialized.
+ */
+
+ return 0;
+}
+
+/**
+ * Open file.
+ *
+ * \param inode device inode
+ * \param filp file pointer.
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches the DRM device with the same minor number, calls open_helper(), and
+ * increments the device open count. If the open count was previous at zero,
+ * i.e., it's the first that the device is open, then calls setup().
+ */
+int drm_open(struct inode *inode, struct file *filp)
+{
+ struct drm_device *dev = NULL;
+ int minor_id = iminor(inode);
+ struct drm_minor *minor;
+ int retcode = 0;
+
+ minor = idr_find(&drm_minors_idr, minor_id);
+ if (!minor)
+ return -ENODEV;
+
+ if (!(dev = minor->dev))
+ return -ENODEV;
+
+ if (drm_device_is_unplugged(dev))
+ return -ENODEV;
+
+ retcode = drm_open_helper(inode, filp, dev);
+ if (!retcode) {
+ atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
+ if (!dev->open_count++)
+ retcode = drm_setup(dev);
+ }
+ if (!retcode) {
+ mutex_lock(&dev->struct_mutex);
+ if (dev->dev_mapping == NULL)
+ dev->dev_mapping = &inode->i_data;
+ /* ihold ensures nobody can remove inode with our i_data */
+ ihold(container_of(dev->dev_mapping, struct inode, i_data));
+ inode->i_mapping = dev->dev_mapping;
+ filp->f_mapping = dev->dev_mapping;
+ mutex_unlock(&dev->struct_mutex);
+ }
+
+ return retcode;
+}
+EXPORT_SYMBOL(drm_open);
+
+/**
+ * File \c open operation.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ *
+ * Puts the dev->fops corresponding to the device minor number into
+ * \p filp, call the \c open method, and restore the file operations.
+ */
+int drm_stub_open(struct inode *inode, struct file *filp)
+{
+ struct drm_device *dev = NULL;
+ struct drm_minor *minor;
+ int minor_id = iminor(inode);
+ int err = -ENODEV;
+ const struct file_operations *old_fops;
+
+ DRM_DEBUG("\n");
+
+ mutex_lock(&drm_global_mutex);
+ minor = idr_find(&drm_minors_idr, minor_id);
+ if (!minor)
+ goto out;
+
+ if (!(dev = minor->dev))
+ goto out;
+
+ if (drm_device_is_unplugged(dev))
+ goto out;
+
+ old_fops = filp->f_op;
+ filp->f_op = fops_get(dev->driver->fops);
+ if (filp->f_op == NULL) {
+ filp->f_op = old_fops;
+ goto out;
+ }
+ if (filp->f_op->open && (err = filp->f_op->open(inode, filp))) {
+ fops_put(filp->f_op);
+ filp->f_op = fops_get(old_fops);
+ }
+ fops_put(old_fops);
+
+out:
+ mutex_unlock(&drm_global_mutex);
+ return err;
+}
+
+/**
+ * Check whether DRI will run on this CPU.
+ *
+ * \return non-zero if the DRI will run on this CPU, or zero otherwise.
+ */
+static int drm_cpu_valid(void)
+{
+#if defined(__i386__)
+ if (boot_cpu_data.x86 == 3)
+ return 0; /* No cmpxchg on a 386 */
+#endif
+#if defined(__sparc__) && !defined(__sparc_v9__)
+ return 0; /* No cmpxchg before v9 sparc. */
+#endif
+ return 1;
+}
+
+/**
+ * Called whenever a process opens /dev/drm.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param dev device.
+ * \return zero on success or a negative number on failure.
+ *
+ * Creates and initializes a drm_file structure for the file private data in \p
+ * filp and add it into the double linked list in \p dev.
+ */
+static int drm_open_helper(struct inode *inode, struct file *filp,
+ struct drm_device * dev)
+{
+ int minor_id = iminor(inode);
+ struct drm_file *priv;
+ int ret;
+
+ if (filp->f_flags & O_EXCL)
+ return -EBUSY; /* No exclusive opens */
+ if (!drm_cpu_valid())
+ return -EINVAL;
+ if (dev->switch_power_state != DRM_SWITCH_POWER_ON)
+ return -EINVAL;
+
+ DRM_DEBUG("pid = %d, minor = %d\n", task_pid_nr(current), minor_id);
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ filp->private_data = priv;
+ priv->filp = filp;
+ priv->uid = current_euid();
+ priv->pid = task_pid_nr(current);
+ priv->minor = idr_find(&drm_minors_idr, minor_id);
+ priv->ioctl_count = 0;
+ /* for compatibility root is always authenticated */
+ priv->authenticated = capable(CAP_SYS_ADMIN);
+ priv->lock_count = 0;
+
+ INIT_LIST_HEAD(&priv->lhead);
+ INIT_LIST_HEAD(&priv->fbs);
+ INIT_LIST_HEAD(&priv->event_list);
+ init_waitqueue_head(&priv->event_wait);
+ priv->event_space = 4096; /* set aside 4k for event buffer */
+
+ if (dev->driver->driver_features & DRIVER_GEM)
+ drm_gem_open(dev, priv);
+
+ if (drm_core_check_feature(dev, DRIVER_PRIME))
+ drm_prime_init_file_private(&priv->prime);
+
+ if (dev->driver->open) {
+ ret = dev->driver->open(dev, priv);
+ if (ret < 0)
+ goto out_free;
+ }
+
+
+ /* if there is no current master make this fd it */
+ mutex_lock(&dev->struct_mutex);
+ if (!priv->minor->master) {
+ /* create a new master */
+ priv->minor->master = drm_master_create(priv->minor);
+ if (!priv->minor->master) {
+ mutex_unlock(&dev->struct_mutex);
+ ret = -ENOMEM;
+ goto out_free;
+ }
+
+ priv->is_master = 1;
+ /* take another reference for the copy in the local file priv */
+ priv->master = drm_master_get(priv->minor->master);
+
+ priv->authenticated = 1;
+
+ mutex_unlock(&dev->struct_mutex);
+ if (dev->driver->master_create) {
+ ret = dev->driver->master_create(dev, priv->master);
+ if (ret) {
+ mutex_lock(&dev->struct_mutex);
+ /* drop both references if this fails */
+ drm_master_put(&priv->minor->master);
+ drm_master_put(&priv->master);
+ mutex_unlock(&dev->struct_mutex);
+ goto out_free;
+ }
+ }
+ mutex_lock(&dev->struct_mutex);
+ if (dev->driver->master_set) {
+ ret = dev->driver->master_set(dev, priv, true);
+ if (ret) {
+ /* drop both references if this fails */
+ drm_master_put(&priv->minor->master);
+ drm_master_put(&priv->master);
+ mutex_unlock(&dev->struct_mutex);
+ goto out_free;
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+ } else {
+ /* get a reference to the master */
+ priv->master = drm_master_get(priv->minor->master);
+ mutex_unlock(&dev->struct_mutex);
+ }
+
+ mutex_lock(&dev->struct_mutex);
+ list_add(&priv->lhead, &dev->filelist);
+ mutex_unlock(&dev->struct_mutex);
+
+#ifdef __alpha__
+ /*
+ * Default the hose
+ */
+ if (!dev->hose) {
+ struct pci_dev *pci_dev;
+ pci_dev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, NULL);
+ if (pci_dev) {
+ dev->hose = pci_dev->sysdata;
+ pci_dev_put(pci_dev);
+ }
+ if (!dev->hose) {
+ struct pci_bus *b = pci_bus_b(pci_root_buses.next);
+ if (b)
+ dev->hose = b->sysdata;
+ }
+ }
+#endif
+
+ return 0;
+ out_free:
+ kfree(priv);
+ filp->private_data = NULL;
+ return ret;
+}
+
+/** No-op. */
+int drm_fasync(int fd, struct file *filp, int on)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+
+ DRM_DEBUG("fd = %d, device = 0x%lx\n", fd,
+ (long)old_encode_dev(priv->minor->device));
+ return fasync_helper(fd, filp, on, &dev->buf_async);
+}
+EXPORT_SYMBOL(drm_fasync);
+
+static void drm_master_release(struct drm_device *dev, struct file *filp)
+{
+ struct drm_file *file_priv = filp->private_data;
+
+ if (drm_i_have_hw_lock(dev, file_priv)) {
+ DRM_DEBUG("File %p released, freeing lock for context %d\n",
+ filp, _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));
+ drm_lock_free(&file_priv->master->lock,
+ _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));
+ }
+}
+
+static void drm_events_release(struct drm_file *file_priv)
+{
+ struct drm_device *dev = file_priv->minor->dev;
+ struct drm_pending_event *e, *et;
+ struct drm_pending_vblank_event *v, *vt;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ /* Remove pending flips */
+ list_for_each_entry_safe(v, vt, &dev->vblank_event_list, base.link)
+ if (v->base.file_priv == file_priv) {
+ list_del(&v->base.link);
+ drm_vblank_put(dev, v->pipe);
+ v->base.destroy(&v->base);
+ }
+
+ /* Remove unconsumed events */
+ list_for_each_entry_safe(e, et, &file_priv->event_list, link)
+ e->destroy(e);
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+
+/**
+ * Release file.
+ *
+ * \param inode device inode
+ * \param file_priv DRM file private.
+ * \return zero on success or a negative number on failure.
+ *
+ * If the hardware lock is held then free it, and take it again for the kernel
+ * context since it's necessary to reclaim buffers. Unlink the file private
+ * data from its list and free it. Decreases the open count and if it reaches
+ * zero calls drm_lastclose().
+ */
+int drm_release(struct inode *inode, struct file *filp)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_device *dev = file_priv->minor->dev;
+ int retcode = 0;
+
+ mutex_lock(&drm_global_mutex);
+
+ DRM_DEBUG("open_count = %d\n", dev->open_count);
+
+ if (dev->driver->preclose)
+ dev->driver->preclose(dev, file_priv);
+
+ /* ========================================================
+ * Begin inline drm_release
+ */
+
+ DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
+ task_pid_nr(current),
+ (long)old_encode_dev(file_priv->minor->device),
+ dev->open_count);
+
+ /* Release any auth tokens that might point to this file_priv,
+ (do that under the drm_global_mutex) */
+ if (file_priv->magic)
+ (void) drm_remove_magic(file_priv->master, file_priv->magic);
+
+ /* if the master has gone away we can't do anything with the lock */
+ if (file_priv->minor->master)
+ drm_master_release(dev, filp);
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ drm_core_reclaim_buffers(dev, file_priv);
+
+ drm_events_release(file_priv);
+
+ if (dev->driver->driver_features & DRIVER_MODESET)
+ drm_fb_release(file_priv);
+
+ if (dev->driver->driver_features & DRIVER_GEM)
+ drm_gem_release(dev, file_priv);
+
+ mutex_lock(&dev->ctxlist_mutex);
+ if (!list_empty(&dev->ctxlist)) {
+ struct drm_ctx_list *pos, *n;
+
+ list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {
+ if (pos->tag == file_priv &&
+ pos->handle != DRM_KERNEL_CONTEXT) {
+ if (dev->driver->context_dtor)
+ dev->driver->context_dtor(dev,
+ pos->handle);
+
+ drm_ctxbitmap_free(dev, pos->handle);
+
+ list_del(&pos->head);
+ kfree(pos);
+ --dev->ctx_count;
+ }
+ }
+ }
+ mutex_unlock(&dev->ctxlist_mutex);
+
+ mutex_lock(&dev->struct_mutex);
+
+ if (file_priv->is_master) {
+ struct drm_master *master = file_priv->master;
+ struct drm_file *temp;
+ list_for_each_entry(temp, &dev->filelist, lhead) {
+ if ((temp->master == file_priv->master) &&
+ (temp != file_priv))
+ temp->authenticated = 0;
+ }
+
+ /**
+ * Since the master is disappearing, so is the
+ * possibility to lock.
+ */
+
+ if (master->lock.hw_lock) {
+ if (dev->sigdata.lock == master->lock.hw_lock)
+ dev->sigdata.lock = NULL;
+ master->lock.hw_lock = NULL;
+ master->lock.file_priv = NULL;
+ wake_up_interruptible_all(&master->lock.lock_queue);
+ }
+
+ if (file_priv->minor->master == file_priv->master) {
+ /* drop the reference held my the minor */
+ if (dev->driver->master_drop)
+ dev->driver->master_drop(dev, file_priv, true);
+ drm_master_put(&file_priv->minor->master);
+ }
+ }
+
+ BUG_ON(dev->dev_mapping == NULL);
+ iput(container_of(dev->dev_mapping, struct inode, i_data));
+
+ /* drop the reference held my the file priv */
+ drm_master_put(&file_priv->master);
+ file_priv->is_master = 0;
+ list_del(&file_priv->lhead);
+ mutex_unlock(&dev->struct_mutex);
+
+ if (dev->driver->postclose)
+ dev->driver->postclose(dev, file_priv);
+
+ if (drm_core_check_feature(dev, DRIVER_PRIME))
+ drm_prime_destroy_file_private(&file_priv->prime);
+
+ kfree(file_priv);
+
+ /* ========================================================
+ * End inline drm_release
+ */
+
+ atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);
+ if (!--dev->open_count) {
+ if (atomic_read(&dev->ioctl_count)) {
+ DRM_ERROR("Device busy: %d\n",
+ atomic_read(&dev->ioctl_count));
+ retcode = -EBUSY;
+ } else
+ retcode = drm_lastclose(dev);
+ if (drm_device_is_unplugged(dev))
+ drm_put_dev(dev);
+ }
+ mutex_unlock(&drm_global_mutex);
+
+ return retcode;
+}
+EXPORT_SYMBOL(drm_release);
+
+static bool
+drm_dequeue_event(struct drm_file *file_priv,
+ size_t total, size_t max, struct drm_pending_event **out)
+{
+ struct drm_device *dev = file_priv->minor->dev;
+ struct drm_pending_event *e;
+ unsigned long flags;
+ bool ret = false;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ *out = NULL;
+ if (list_empty(&file_priv->event_list))
+ goto out;
+ e = list_first_entry(&file_priv->event_list,
+ struct drm_pending_event, link);
+ if (e->event->length + total > max)
+ goto out;
+
+ file_priv->event_space += e->event->length;
+ list_del(&e->link);
+ *out = e;
+ ret = true;
+
+out:
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ return ret;
+}
+
+ssize_t drm_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *offset)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_pending_event *e;
+ size_t total;
+ ssize_t ret;
+
+ ret = wait_event_interruptible(file_priv->event_wait,
+ !list_empty(&file_priv->event_list));
+ if (ret < 0)
+ return ret;
+
+ total = 0;
+ while (drm_dequeue_event(file_priv, total, count, &e)) {
+ if (copy_to_user(buffer + total,
+ e->event, e->event->length)) {
+ total = -EFAULT;
+ break;
+ }
+
+ total += e->event->length;
+ e->destroy(e);
+ }
+
+ return total;
+}
+EXPORT_SYMBOL(drm_read);
+
+unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait)
+{
+ struct drm_file *file_priv = filp->private_data;
+ unsigned int mask = 0;
+
+ poll_wait(filp, &file_priv->event_wait, wait);
+
+ if (!list_empty(&file_priv->event_list))
+ mask |= POLLIN | POLLRDNORM;
+
+ return mask;
+}
+EXPORT_SYMBOL(drm_poll);
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
new file mode 100644
index 0000000..fbe0842
--- /dev/null
+++ b/drivers/gpu/drm/drm_gem.c
@@ -0,0 +1,729 @@
+/*
+ * Copyright © 2008 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ * Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/uaccess.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/module.h>
+#include <linux/mman.h>
+#include <linux/pagemap.h>
+#include <linux/shmem_fs.h>
+#include <linux/dma-buf.h>
+#include "drmP.h"
+
+/** @file drm_gem.c
+ *
+ * This file provides some of the base ioctls and library routines for
+ * the graphics memory manager implemented by each device driver.
+ *
+ * Because various devices have different requirements in terms of
+ * synchronization and migration strategies, implementing that is left up to
+ * the driver, and all that the general API provides should be generic --
+ * allocating objects, reading/writing data with the cpu, freeing objects.
+ * Even there, platform-dependent optimizations for reading/writing data with
+ * the CPU mean we'll likely hook those out to driver-specific calls. However,
+ * the DRI2 implementation wants to have at least allocate/mmap be generic.
+ *
+ * The goal was to have swap-backed object allocation managed through
+ * struct file. However, file descriptors as handles to a struct file have
+ * two major failings:
+ * - Process limits prevent more than 1024 or so being used at a time by
+ * default.
+ * - Inability to allocate high fds will aggravate the X Server's select()
+ * handling, and likely that of many GL client applications as well.
+ *
+ * This led to a plan of using our own integer IDs (called handles, following
+ * DRM terminology) to mimic fds, and implement the fd syscalls we need as
+ * ioctls. The objects themselves will still include the struct file so
+ * that we can transition to fds if the required kernel infrastructure shows
+ * up at a later date, and as our interface with shmfs for memory allocation.
+ */
+
+/*
+ * We make up offsets for buffer objects so we can recognize them at
+ * mmap time.
+ */
+
+/* pgoff in mmap is an unsigned long, so we need to make sure that
+ * the faked up offset will fit
+ */
+
+#if BITS_PER_LONG == 64
+#define DRM_FILE_PAGE_OFFSET_START ((0xFFFFFFFFUL >> PAGE_SHIFT) + 1)
+#define DRM_FILE_PAGE_OFFSET_SIZE ((0xFFFFFFFFUL >> PAGE_SHIFT) * 16)
+#else
+#define DRM_FILE_PAGE_OFFSET_START ((0xFFFFFFFUL >> PAGE_SHIFT) + 1)
+#define DRM_FILE_PAGE_OFFSET_SIZE ((0xFFFFFFFUL >> PAGE_SHIFT) * 16)
+#endif
+
+/**
+ * Initialize the GEM device fields
+ */
+
+int
+drm_gem_init(struct drm_device *dev)
+{
+ struct drm_gem_mm *mm;
+
+ spin_lock_init(&dev->object_name_lock);
+ idr_init(&dev->object_name_idr);
+
+ mm = kzalloc(sizeof(struct drm_gem_mm), GFP_KERNEL);
+ if (!mm) {
+ DRM_ERROR("out of memory\n");
+ return -ENOMEM;
+ }
+
+ dev->mm_private = mm;
+
+ if (drm_ht_create(&mm->offset_hash, 12)) {
+ kfree(mm);
+ return -ENOMEM;
+ }
+
+ if (drm_mm_init(&mm->offset_manager, DRM_FILE_PAGE_OFFSET_START,
+ DRM_FILE_PAGE_OFFSET_SIZE)) {
+ drm_ht_remove(&mm->offset_hash);
+ kfree(mm);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+void
+drm_gem_destroy(struct drm_device *dev)
+{
+ struct drm_gem_mm *mm = dev->mm_private;
+
+ drm_mm_takedown(&mm->offset_manager);
+ drm_ht_remove(&mm->offset_hash);
+ kfree(mm);
+ dev->mm_private = NULL;
+}
+
+/**
+ * Initialize an already allocated GEM object of the specified size with
+ * shmfs backing store.
+ */
+int drm_gem_object_init(struct drm_device *dev,
+ struct drm_gem_object *obj, size_t size)
+{
+ BUG_ON((size & (PAGE_SIZE - 1)) != 0);
+
+ obj->dev = dev;
+ obj->filp = shmem_file_setup("drm mm object", size, VM_NORESERVE);
+ if (IS_ERR(obj->filp))
+ return PTR_ERR(obj->filp);
+
+ kref_init(&obj->refcount);
+ atomic_set(&obj->handle_count, 0);
+ obj->size = size;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_gem_object_init);
+
+/**
+ * Initialize an already allocated GEM object of the specified size with
+ * no GEM provided backing store. Instead the caller is responsible for
+ * backing the object and handling it.
+ */
+int drm_gem_private_object_init(struct drm_device *dev,
+ struct drm_gem_object *obj, size_t size)
+{
+ BUG_ON((size & (PAGE_SIZE - 1)) != 0);
+
+ obj->dev = dev;
+ obj->filp = NULL;
+
+ kref_init(&obj->refcount);
+ atomic_set(&obj->handle_count, 0);
+ obj->size = size;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_gem_private_object_init);
+
+/**
+ * Allocate a GEM object of the specified size with shmfs backing store
+ */
+struct drm_gem_object *
+drm_gem_object_alloc(struct drm_device *dev, size_t size)
+{
+ struct drm_gem_object *obj;
+
+ obj = kzalloc(sizeof(*obj), GFP_KERNEL);
+ if (!obj)
+ goto free;
+
+ if (drm_gem_object_init(dev, obj, size) != 0)
+ goto free;
+
+ if (dev->driver->gem_init_object != NULL &&
+ dev->driver->gem_init_object(obj) != 0) {
+ goto fput;
+ }
+ return obj;
+fput:
+ /* Object_init mangles the global counters - readjust them. */
+ fput(obj->filp);
+free:
+ kfree(obj);
+ return NULL;
+}
+EXPORT_SYMBOL(drm_gem_object_alloc);
+
+static void
+drm_gem_remove_prime_handles(struct drm_gem_object *obj, struct drm_file *filp)
+{
+ if (obj->import_attach) {
+ drm_prime_remove_imported_buf_handle(&filp->prime,
+ obj->import_attach->dmabuf);
+ }
+ if (obj->export_dma_buf) {
+ drm_prime_remove_imported_buf_handle(&filp->prime,
+ obj->export_dma_buf);
+ }
+}
+
+/**
+ * Removes the mapping from handle to filp for this object.
+ */
+int
+drm_gem_handle_delete(struct drm_file *filp, u32 handle)
+{
+ struct drm_device *dev;
+ struct drm_gem_object *obj;
+
+ /* This is gross. The idr system doesn't let us try a delete and
+ * return an error code. It just spews if you fail at deleting.
+ * So, we have to grab a lock around finding the object and then
+ * doing the delete on it and dropping the refcount, or the user
+ * could race us to double-decrement the refcount and cause a
+ * use-after-free later. Given the frequency of our handle lookups,
+ * we may want to use ida for number allocation and a hash table
+ * for the pointers, anyway.
+ */
+ spin_lock(&filp->table_lock);
+
+ /* Check if we currently have a reference on the object */
+ obj = idr_find(&filp->object_idr, handle);
+ if (obj == NULL) {
+ spin_unlock(&filp->table_lock);
+ return -EINVAL;
+ }
+ dev = obj->dev;
+
+ /* Release reference and decrement refcount. */
+ idr_remove(&filp->object_idr, handle);
+ spin_unlock(&filp->table_lock);
+
+ drm_gem_remove_prime_handles(obj, filp);
+
+ if (dev->driver->gem_close_object)
+ dev->driver->gem_close_object(obj, filp);
+ drm_gem_object_handle_unreference_unlocked(obj);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_gem_handle_delete);
+
+/**
+ * Create a handle for this object. This adds a handle reference
+ * to the object, which includes a regular reference count. Callers
+ * will likely want to dereference the object afterwards.
+ */
+int
+drm_gem_handle_create(struct drm_file *file_priv,
+ struct drm_gem_object *obj,
+ u32 *handlep)
+{
+ struct drm_device *dev = obj->dev;
+ int ret;
+
+ /*
+ * Get the user-visible handle using idr.
+ */
+again:
+ /* ensure there is space available to allocate a handle */
+ if (idr_pre_get(&file_priv->object_idr, GFP_KERNEL) == 0)
+ return -ENOMEM;
+
+ /* do the allocation under our spinlock */
+ spin_lock(&file_priv->table_lock);
+ ret = idr_get_new_above(&file_priv->object_idr, obj, 1, (int *)handlep);
+ spin_unlock(&file_priv->table_lock);
+ if (ret == -EAGAIN)
+ goto again;
+ else if (ret)
+ return ret;
+
+ drm_gem_object_handle_reference(obj);
+
+ if (dev->driver->gem_open_object) {
+ ret = dev->driver->gem_open_object(obj, file_priv);
+ if (ret) {
+ drm_gem_handle_delete(file_priv, *handlep);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_gem_handle_create);
+
+
+/**
+ * drm_gem_free_mmap_offset - release a fake mmap offset for an object
+ * @obj: obj in question
+ *
+ * This routine frees fake offsets allocated by drm_gem_create_mmap_offset().
+ */
+void
+drm_gem_free_mmap_offset(struct drm_gem_object *obj)
+{
+ struct drm_device *dev = obj->dev;
+ struct drm_gem_mm *mm = dev->mm_private;
+ struct drm_map_list *list = &obj->map_list;
+
+ drm_ht_remove_item(&mm->offset_hash, &list->hash);
+ drm_mm_put_block(list->file_offset_node);
+ kfree(list->map);
+ list->map = NULL;
+}
+EXPORT_SYMBOL(drm_gem_free_mmap_offset);
+
+/**
+ * drm_gem_create_mmap_offset - create a fake mmap offset for an object
+ * @obj: obj in question
+ *
+ * GEM memory mapping works by handing back to userspace a fake mmap offset
+ * it can use in a subsequent mmap(2) call. The DRM core code then looks
+ * up the object based on the offset and sets up the various memory mapping
+ * structures.
+ *
+ * This routine allocates and attaches a fake offset for @obj.
+ */
+int
+drm_gem_create_mmap_offset(struct drm_gem_object *obj)
+{
+ struct drm_device *dev = obj->dev;
+ struct drm_gem_mm *mm = dev->mm_private;
+ struct drm_map_list *list;
+ struct drm_local_map *map;
+ int ret;
+
+ /* Set the object up for mmap'ing */
+ list = &obj->map_list;
+ list->map = kzalloc(sizeof(struct drm_map_list), GFP_KERNEL);
+ if (!list->map)
+ return -ENOMEM;
+
+ map = list->map;
+ map->type = _DRM_GEM;
+ map->size = obj->size;
+ map->handle = obj;
+
+ /* Get a DRM GEM mmap offset allocated... */
+ list->file_offset_node = drm_mm_search_free(&mm->offset_manager,
+ obj->size / PAGE_SIZE, 0, false);
+
+ if (!list->file_offset_node) {
+ DRM_ERROR("failed to allocate offset for bo %d\n", obj->name);
+ ret = -ENOSPC;
+ goto out_free_list;
+ }
+
+ list->file_offset_node = drm_mm_get_block(list->file_offset_node,
+ obj->size / PAGE_SIZE, 0);
+ if (!list->file_offset_node) {
+ ret = -ENOMEM;
+ goto out_free_list;
+ }
+
+ list->hash.key = list->file_offset_node->start;
+ ret = drm_ht_insert_item(&mm->offset_hash, &list->hash);
+ if (ret) {
+ DRM_ERROR("failed to add to map hash\n");
+ goto out_free_mm;
+ }
+
+ return 0;
+
+out_free_mm:
+ drm_mm_put_block(list->file_offset_node);
+out_free_list:
+ kfree(list->map);
+ list->map = NULL;
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_gem_create_mmap_offset);
+
+/** Returns a reference to the object named by the handle. */
+struct drm_gem_object *
+drm_gem_object_lookup(struct drm_device *dev, struct drm_file *filp,
+ u32 handle)
+{
+ struct drm_gem_object *obj;
+
+ spin_lock(&filp->table_lock);
+
+ /* Check if we currently have a reference on the object */
+ obj = idr_find(&filp->object_idr, handle);
+ if (obj == NULL) {
+ spin_unlock(&filp->table_lock);
+ return NULL;
+ }
+
+ drm_gem_object_reference(obj);
+
+ spin_unlock(&filp->table_lock);
+
+ return obj;
+}
+EXPORT_SYMBOL(drm_gem_object_lookup);
+
+/**
+ * Releases the handle to an mm object.
+ */
+int
+drm_gem_close_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_gem_close *args = data;
+ int ret;
+
+ if (!(dev->driver->driver_features & DRIVER_GEM))
+ return -ENODEV;
+
+ ret = drm_gem_handle_delete(file_priv, args->handle);
+
+ return ret;
+}
+
+/**
+ * Create a global name for an object, returning the name.
+ *
+ * Note that the name does not hold a reference; when the object
+ * is freed, the name goes away.
+ */
+int
+drm_gem_flink_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_gem_flink *args = data;
+ struct drm_gem_object *obj;
+ int ret;
+
+ if (!(dev->driver->driver_features & DRIVER_GEM))
+ return -ENODEV;
+
+ obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+ if (obj == NULL)
+ return -ENOENT;
+
+again:
+ if (idr_pre_get(&dev->object_name_idr, GFP_KERNEL) == 0) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ spin_lock(&dev->object_name_lock);
+ if (!obj->name) {
+ ret = idr_get_new_above(&dev->object_name_idr, obj, 1,
+ &obj->name);
+ args->name = (uint64_t) obj->name;
+ spin_unlock(&dev->object_name_lock);
+
+ if (ret == -EAGAIN)
+ goto again;
+ else if (ret)
+ goto err;
+
+ /* Allocate a reference for the name table. */
+ drm_gem_object_reference(obj);
+ } else {
+ args->name = (uint64_t) obj->name;
+ spin_unlock(&dev->object_name_lock);
+ ret = 0;
+ }
+
+err:
+ drm_gem_object_unreference_unlocked(obj);
+ return ret;
+}
+
+/**
+ * Open an object using the global name, returning a handle and the size.
+ *
+ * This handle (of course) holds a reference to the object, so the object
+ * will not go away until the handle is deleted.
+ */
+int
+drm_gem_open_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_gem_open *args = data;
+ struct drm_gem_object *obj;
+ int ret;
+ u32 handle;
+
+ if (!(dev->driver->driver_features & DRIVER_GEM))
+ return -ENODEV;
+
+ spin_lock(&dev->object_name_lock);
+ obj = idr_find(&dev->object_name_idr, (int) args->name);
+ if (obj)
+ drm_gem_object_reference(obj);
+ spin_unlock(&dev->object_name_lock);
+ if (!obj)
+ return -ENOENT;
+
+ ret = drm_gem_handle_create(file_priv, obj, &handle);
+ drm_gem_object_unreference_unlocked(obj);
+ if (ret)
+ return ret;
+
+ args->handle = handle;
+ args->size = obj->size;
+
+ return 0;
+}
+
+/**
+ * Called at device open time, sets up the structure for handling refcounting
+ * of mm objects.
+ */
+void
+drm_gem_open(struct drm_device *dev, struct drm_file *file_private)
+{
+ idr_init(&file_private->object_idr);
+ spin_lock_init(&file_private->table_lock);
+}
+
+/**
+ * Called at device close to release the file's
+ * handle references on objects.
+ */
+static int
+drm_gem_object_release_handle(int id, void *ptr, void *data)
+{
+ struct drm_file *file_priv = data;
+ struct drm_gem_object *obj = ptr;
+ struct drm_device *dev = obj->dev;
+
+ drm_gem_remove_prime_handles(obj, file_priv);
+
+ if (dev->driver->gem_close_object)
+ dev->driver->gem_close_object(obj, file_priv);
+
+ drm_gem_object_handle_unreference_unlocked(obj);
+
+ return 0;
+}
+
+/**
+ * Called at close time when the filp is going away.
+ *
+ * Releases any remaining references on objects by this filp.
+ */
+void
+drm_gem_release(struct drm_device *dev, struct drm_file *file_private)
+{
+ idr_for_each(&file_private->object_idr,
+ &drm_gem_object_release_handle, file_private);
+
+ idr_remove_all(&file_private->object_idr);
+ idr_destroy(&file_private->object_idr);
+}
+
+void
+drm_gem_object_release(struct drm_gem_object *obj)
+{
+ if (obj->filp)
+ fput(obj->filp);
+}
+EXPORT_SYMBOL(drm_gem_object_release);
+
+/**
+ * Called after the last reference to the object has been lost.
+ * Must be called holding struct_ mutex
+ *
+ * Frees the object
+ */
+void
+drm_gem_object_free(struct kref *kref)
+{
+ struct drm_gem_object *obj = (struct drm_gem_object *) kref;
+ struct drm_device *dev = obj->dev;
+
+ BUG_ON(!mutex_is_locked(&dev->struct_mutex));
+
+ if (dev->driver->gem_free_object != NULL)
+ dev->driver->gem_free_object(obj);
+}
+EXPORT_SYMBOL(drm_gem_object_free);
+
+static void drm_gem_object_ref_bug(struct kref *list_kref)
+{
+ BUG();
+}
+
+/**
+ * Called after the last handle to the object has been closed
+ *
+ * Removes any name for the object. Note that this must be
+ * called before drm_gem_object_free or we'll be touching
+ * freed memory
+ */
+void drm_gem_object_handle_free(struct drm_gem_object *obj)
+{
+ struct drm_device *dev = obj->dev;
+
+ /* Remove any name for this object */
+ spin_lock(&dev->object_name_lock);
+ if (obj->name) {
+ idr_remove(&dev->object_name_idr, obj->name);
+ obj->name = 0;
+ spin_unlock(&dev->object_name_lock);
+ /*
+ * The object name held a reference to this object, drop
+ * that now.
+ *
+ * This cannot be the last reference, since the handle holds one too.
+ */
+ kref_put(&obj->refcount, drm_gem_object_ref_bug);
+ } else
+ spin_unlock(&dev->object_name_lock);
+
+}
+EXPORT_SYMBOL(drm_gem_object_handle_free);
+
+void drm_gem_vm_open(struct vm_area_struct *vma)
+{
+ struct drm_gem_object *obj = vma->vm_private_data;
+
+ drm_gem_object_reference(obj);
+
+ mutex_lock(&obj->dev->struct_mutex);
+ drm_vm_open_locked(obj->dev, vma);
+ mutex_unlock(&obj->dev->struct_mutex);
+}
+EXPORT_SYMBOL(drm_gem_vm_open);
+
+void drm_gem_vm_close(struct vm_area_struct *vma)
+{
+ struct drm_gem_object *obj = vma->vm_private_data;
+ struct drm_device *dev = obj->dev;
+
+ mutex_lock(&dev->struct_mutex);
+ drm_vm_close_locked(obj->dev, vma);
+ drm_gem_object_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
+}
+EXPORT_SYMBOL(drm_gem_vm_close);
+
+
+/**
+ * drm_gem_mmap - memory map routine for GEM objects
+ * @filp: DRM file pointer
+ * @vma: VMA for the area to be mapped
+ *
+ * If a driver supports GEM object mapping, mmap calls on the DRM file
+ * descriptor will end up here.
+ *
+ * If we find the object based on the offset passed in (vma->vm_pgoff will
+ * contain the fake offset we created when the GTT map ioctl was called on
+ * the object), we set up the driver fault handler so that any accesses
+ * to the object can be trapped, to perform migration, GTT binding, surface
+ * register allocation, or performance monitoring.
+ */
+int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->minor->dev;
+ struct drm_gem_mm *mm = dev->mm_private;
+ struct drm_local_map *map = NULL;
+ struct drm_gem_object *obj;
+ struct drm_hash_item *hash;
+ int ret = 0;
+
+ if (drm_device_is_unplugged(dev))
+ return -ENODEV;
+
+ mutex_lock(&dev->struct_mutex);
+
+ if (drm_ht_find_item(&mm->offset_hash, vma->vm_pgoff, &hash)) {
+ mutex_unlock(&dev->struct_mutex);
+ return drm_mmap(filp, vma);
+ }
+
+ map = drm_hash_entry(hash, struct drm_map_list, hash)->map;
+ if (!map ||
+ ((map->flags & _DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN))) {
+ ret = -EPERM;
+ goto out_unlock;
+ }
+
+ /* Check for valid size. */
+ if (map->size < vma->vm_end - vma->vm_start) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ obj = map->handle;
+ if (!obj->dev->driver->gem_vm_ops) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ vma->vm_flags |= VM_RESERVED | VM_IO | VM_PFNMAP | VM_DONTEXPAND;
+ vma->vm_ops = obj->dev->driver->gem_vm_ops;
+ vma->vm_private_data = map->handle;
+ vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
+
+ /* Take a ref for this mapping of the object, so that the fault
+ * handler can dereference the mmap offset's pointer to the object.
+ * This reference is cleaned up by the corresponding vm_close
+ * (which should happen whether the vma was created by this call, or
+ * by a vm_open due to mremap or partial unmap or whatever).
+ */
+ drm_gem_object_reference(obj);
+
+ drm_vm_open_locked(dev, vma);
+
+out_unlock:
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_gem_mmap);
diff --git a/drivers/gpu/drm/drm_global.c b/drivers/gpu/drm/drm_global.c
new file mode 100644
index 0000000..c87dc96
--- /dev/null
+++ b/drivers/gpu/drm/drm_global.c
@@ -0,0 +1,112 @@
+/**************************************************************************
+ *
+ * Copyright 2008-2009 VMware, Inc., Palo Alto, CA., USA
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
+ */
+
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include "drm_global.h"
+
+struct drm_global_item {
+ struct mutex mutex;
+ void *object;
+ int refcount;
+};
+
+static struct drm_global_item glob[DRM_GLOBAL_NUM];
+
+void drm_global_init(void)
+{
+ int i;
+
+ for (i = 0; i < DRM_GLOBAL_NUM; ++i) {
+ struct drm_global_item *item = &glob[i];
+ mutex_init(&item->mutex);
+ item->object = NULL;
+ item->refcount = 0;
+ }
+}
+
+void drm_global_release(void)
+{
+ int i;
+ for (i = 0; i < DRM_GLOBAL_NUM; ++i) {
+ struct drm_global_item *item = &glob[i];
+ BUG_ON(item->object != NULL);
+ BUG_ON(item->refcount != 0);
+ }
+}
+
+int drm_global_item_ref(struct drm_global_reference *ref)
+{
+ int ret;
+ struct drm_global_item *item = &glob[ref->global_type];
+ void *object;
+
+ mutex_lock(&item->mutex);
+ if (item->refcount == 0) {
+ item->object = kzalloc(ref->size, GFP_KERNEL);
+ if (unlikely(item->object == NULL)) {
+ ret = -ENOMEM;
+ goto out_err;
+ }
+
+ ref->object = item->object;
+ ret = ref->init(ref);
+ if (unlikely(ret != 0))
+ goto out_err;
+
+ }
+ ++item->refcount;
+ ref->object = item->object;
+ object = item->object;
+ mutex_unlock(&item->mutex);
+ return 0;
+out_err:
+ mutex_unlock(&item->mutex);
+ item->object = NULL;
+ return ret;
+}
+EXPORT_SYMBOL(drm_global_item_ref);
+
+void drm_global_item_unref(struct drm_global_reference *ref)
+{
+ struct drm_global_item *item = &glob[ref->global_type];
+
+ mutex_lock(&item->mutex);
+ BUG_ON(item->refcount == 0);
+ BUG_ON(ref->object != item->object);
+ if (--item->refcount == 0) {
+ ref->release(ref);
+ item->object = NULL;
+ }
+ mutex_unlock(&item->mutex);
+}
+EXPORT_SYMBOL(drm_global_item_unref);
+
diff --git a/drivers/gpu/drm/drm_hashtab.c b/drivers/gpu/drm/drm_hashtab.c
new file mode 100644
index 0000000..68dc874
--- /dev/null
+++ b/drivers/gpu/drm/drm_hashtab.c
@@ -0,0 +1,197 @@
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. USA.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ **************************************************************************/
+/*
+ * Simple open hash tab implementation.
+ *
+ * Authors:
+ * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drmP.h"
+#include "drm_hashtab.h"
+#include <linux/hash.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+
+int drm_ht_create(struct drm_open_hash *ht, unsigned int order)
+{
+ unsigned int size = 1 << order;
+
+ ht->order = order;
+ ht->table = NULL;
+ if (size <= PAGE_SIZE / sizeof(*ht->table))
+ ht->table = kcalloc(size, sizeof(*ht->table), GFP_KERNEL);
+ else
+ ht->table = vzalloc(size*sizeof(*ht->table));
+ if (!ht->table) {
+ DRM_ERROR("Out of memory for hash table\n");
+ return -ENOMEM;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_create);
+
+void drm_ht_verbose_list(struct drm_open_hash *ht, unsigned long key)
+{
+ struct drm_hash_item *entry;
+ struct hlist_head *h_list;
+ struct hlist_node *list;
+ unsigned int hashed_key;
+ int count = 0;
+
+ hashed_key = hash_long(key, ht->order);
+ DRM_DEBUG("Key is 0x%08lx, Hashed key is 0x%08x\n", key, hashed_key);
+ h_list = &ht->table[hashed_key];
+ hlist_for_each(list, h_list) {
+ entry = hlist_entry(list, struct drm_hash_item, head);
+ DRM_DEBUG("count %d, key: 0x%08lx\n", count++, entry->key);
+ }
+}
+
+static struct hlist_node *drm_ht_find_key(struct drm_open_hash *ht,
+ unsigned long key)
+{
+ struct drm_hash_item *entry;
+ struct hlist_head *h_list;
+ struct hlist_node *list;
+ unsigned int hashed_key;
+
+ hashed_key = hash_long(key, ht->order);
+ h_list = &ht->table[hashed_key];
+ hlist_for_each(list, h_list) {
+ entry = hlist_entry(list, struct drm_hash_item, head);
+ if (entry->key == key)
+ return list;
+ if (entry->key > key)
+ break;
+ }
+ return NULL;
+}
+
+
+int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item)
+{
+ struct drm_hash_item *entry;
+ struct hlist_head *h_list;
+ struct hlist_node *list, *parent;
+ unsigned int hashed_key;
+ unsigned long key = item->key;
+
+ hashed_key = hash_long(key, ht->order);
+ h_list = &ht->table[hashed_key];
+ parent = NULL;
+ hlist_for_each(list, h_list) {
+ entry = hlist_entry(list, struct drm_hash_item, head);
+ if (entry->key == key)
+ return -EINVAL;
+ if (entry->key > key)
+ break;
+ parent = list;
+ }
+ if (parent) {
+ hlist_add_after(parent, &item->head);
+ } else {
+ hlist_add_head(&item->head, h_list);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_insert_item);
+
+/*
+ * Just insert an item and return any "bits" bit key that hasn't been
+ * used before.
+ */
+int drm_ht_just_insert_please(struct drm_open_hash *ht, struct drm_hash_item *item,
+ unsigned long seed, int bits, int shift,
+ unsigned long add)
+{
+ int ret;
+ unsigned long mask = (1 << bits) - 1;
+ unsigned long first, unshifted_key;
+
+ unshifted_key = hash_long(seed, bits);
+ first = unshifted_key;
+ do {
+ item->key = (unshifted_key << shift) + add;
+ ret = drm_ht_insert_item(ht, item);
+ if (ret)
+ unshifted_key = (unshifted_key + 1) & mask;
+ } while(ret && (unshifted_key != first));
+
+ if (ret) {
+ DRM_ERROR("Available key bit space exhausted\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_just_insert_please);
+
+int drm_ht_find_item(struct drm_open_hash *ht, unsigned long key,
+ struct drm_hash_item **item)
+{
+ struct hlist_node *list;
+
+ list = drm_ht_find_key(ht, key);
+ if (!list)
+ return -EINVAL;
+
+ *item = hlist_entry(list, struct drm_hash_item, head);
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_find_item);
+
+int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key)
+{
+ struct hlist_node *list;
+
+ list = drm_ht_find_key(ht, key);
+ if (list) {
+ hlist_del_init(list);
+ return 0;
+ }
+ return -EINVAL;
+}
+
+int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item)
+{
+ hlist_del_init(&item->head);
+ return 0;
+}
+EXPORT_SYMBOL(drm_ht_remove_item);
+
+void drm_ht_remove(struct drm_open_hash *ht)
+{
+ if (ht->table) {
+ if ((PAGE_SIZE / sizeof(*ht->table)) >> ht->order)
+ kfree(ht->table);
+ else
+ vfree(ht->table);
+ ht->table = NULL;
+ }
+}
+EXPORT_SYMBOL(drm_ht_remove);
diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c
new file mode 100644
index 0000000..8928edb
--- /dev/null
+++ b/drivers/gpu/drm/drm_info.c
@@ -0,0 +1,279 @@
+/**
+ * \file drm_info.c
+ * DRM info file implementations
+ *
+ * \author Ben Gamari <bgamari@gmail.com>
+ */
+
+/*
+ * Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright 2008 Ben Gamari <bgamari@gmail.com>
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/seq_file.h>
+#include "drmP.h"
+
+/**
+ * Called when "/proc/dri/.../name" is read.
+ *
+ * Prints the device name together with the bus id if available.
+ */
+int drm_name_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_minor *minor = node->minor;
+ struct drm_device *dev = minor->dev;
+ struct drm_master *master = minor->master;
+ const char *bus_name;
+ if (!master)
+ return 0;
+
+ bus_name = dev->driver->bus->get_name(dev);
+ if (master->unique) {
+ seq_printf(m, "%s %s %s\n",
+ bus_name,
+ dev_name(dev->dev), master->unique);
+ } else {
+ seq_printf(m, "%s %s\n",
+ bus_name, dev_name(dev->dev));
+ }
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../vm" is read.
+ *
+ * Prints information about all mappings in drm_device::maplist.
+ */
+int drm_vm_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_local_map *map;
+ struct drm_map_list *r_list;
+
+ /* Hardcoded from _DRM_FRAME_BUFFER,
+ _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
+ _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
+ const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
+ const char *type;
+ int i;
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, "slot offset size type flags address mtrr\n\n");
+ i = 0;
+ list_for_each_entry(r_list, &dev->maplist, head) {
+ map = r_list->map;
+ if (!map)
+ continue;
+ if (map->type < 0 || map->type > 5)
+ type = "??";
+ else
+ type = types[map->type];
+
+ seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ",
+ i,
+ (unsigned long long)map->offset,
+ map->size, type, map->flags,
+ (unsigned long) r_list->user_token);
+ if (map->mtrr < 0)
+ seq_printf(m, "none\n");
+ else
+ seq_printf(m, "%4d\n", map->mtrr);
+ i++;
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../bufs" is read.
+ */
+int drm_bufs_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_device_dma *dma;
+ int i, seg_pages;
+
+ mutex_lock(&dev->struct_mutex);
+ dma = dev->dma;
+ if (!dma) {
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+ }
+
+ seq_printf(m, " o size count free segs pages kB\n\n");
+ for (i = 0; i <= DRM_MAX_ORDER; i++) {
+ if (dma->bufs[i].buf_count) {
+ seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
+ seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
+ i,
+ dma->bufs[i].buf_size,
+ dma->bufs[i].buf_count,
+ atomic_read(&dma->bufs[i].freelist.count),
+ dma->bufs[i].seg_count,
+ seg_pages,
+ seg_pages * PAGE_SIZE / 1024);
+ }
+ }
+ seq_printf(m, "\n");
+ for (i = 0; i < dma->buf_count; i++) {
+ if (i && !(i % 32))
+ seq_printf(m, "\n");
+ seq_printf(m, " %d", dma->buflist[i]->list);
+ }
+ seq_printf(m, "\n");
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../vblank" is read.
+ */
+int drm_vblank_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ int crtc;
+
+ mutex_lock(&dev->struct_mutex);
+ for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
+ seq_printf(m, "CRTC %d enable: %d\n",
+ crtc, atomic_read(&dev->vblank_refcount[crtc]));
+ seq_printf(m, "CRTC %d counter: %d\n",
+ crtc, drm_vblank_count(dev, crtc));
+ seq_printf(m, "CRTC %d last wait: %d\n",
+ crtc, dev->last_vblank_wait[crtc]);
+ seq_printf(m, "CRTC %d in modeset: %d\n",
+ crtc, dev->vblank_inmodeset[crtc]);
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../clients" is read.
+ *
+ */
+int drm_clients_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_file *priv;
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, "a dev pid uid magic ioctls\n\n");
+ list_for_each_entry(priv, &dev->filelist, lhead) {
+ seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
+ priv->authenticated ? 'y' : 'n',
+ priv->minor->index,
+ priv->pid,
+ priv->uid, priv->magic, priv->ioctl_count);
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+
+static int drm_gem_one_name_info(int id, void *ptr, void *data)
+{
+ struct drm_gem_object *obj = ptr;
+ struct seq_file *m = data;
+
+ seq_printf(m, "name %d size %zd\n", obj->name, obj->size);
+
+ seq_printf(m, "%6d %8zd %7d %8d\n",
+ obj->name, obj->size,
+ atomic_read(&obj->handle_count),
+ atomic_read(&obj->refcount.refcount));
+ return 0;
+}
+
+int drm_gem_name_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+
+ seq_printf(m, " name size handles refcount\n");
+ idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
+ return 0;
+}
+
+#if DRM_DEBUG_CODE
+
+int drm_vma_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_vma_entry *pt;
+ struct vm_area_struct *vma;
+#if defined(__i386__)
+ unsigned int pgprot;
+#endif
+
+ mutex_lock(&dev->struct_mutex);
+ seq_printf(m, "vma use count: %d, high_memory = %pK, 0x%pK\n",
+ atomic_read(&dev->vma_count),
+ high_memory, (void *)virt_to_phys(high_memory));
+
+ list_for_each_entry(pt, &dev->vmalist, head) {
+ vma = pt->vma;
+ if (!vma)
+ continue;
+ seq_printf(m,
+ "\n%5d 0x%pK-0x%pK %c%c%c%c%c%c 0x%08lx000",
+ pt->pid,
+ (void *)vma->vm_start, (void *)vma->vm_end,
+ vma->vm_flags & VM_READ ? 'r' : '-',
+ vma->vm_flags & VM_WRITE ? 'w' : '-',
+ vma->vm_flags & VM_EXEC ? 'x' : '-',
+ vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
+ vma->vm_flags & VM_LOCKED ? 'l' : '-',
+ vma->vm_flags & VM_IO ? 'i' : '-',
+ vma->vm_pgoff);
+
+#if defined(__i386__)
+ pgprot = pgprot_val(vma->vm_page_prot);
+ seq_printf(m, " %c%c%c%c%c%c%c%c%c",
+ pgprot & _PAGE_PRESENT ? 'p' : '-',
+ pgprot & _PAGE_RW ? 'w' : 'r',
+ pgprot & _PAGE_USER ? 'u' : 's',
+ pgprot & _PAGE_PWT ? 't' : 'b',
+ pgprot & _PAGE_PCD ? 'u' : 'c',
+ pgprot & _PAGE_ACCESSED ? 'a' : '-',
+ pgprot & _PAGE_DIRTY ? 'd' : '-',
+ pgprot & _PAGE_PSE ? 'm' : 'k',
+ pgprot & _PAGE_GLOBAL ? 'g' : 'l');
+#endif
+ seq_printf(m, "\n");
+ }
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+#endif
+
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
new file mode 100644
index 0000000..637fcc3
--- /dev/null
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -0,0 +1,1085 @@
+/**
+ * \file drm_ioc32.c
+ *
+ * 32-bit ioctl compatibility routines for the DRM.
+ *
+ * \author Paul Mackerras <paulus@samba.org>
+ *
+ * Copyright (C) Paul Mackerras 2005.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <linux/compat.h>
+#include <linux/ratelimit.h>
+#include <linux/export.h>
+
+#include "drmP.h"
+#include "drm_core.h"
+
+#define DRM_IOCTL_VERSION32 DRM_IOWR(0x00, drm_version32_t)
+#define DRM_IOCTL_GET_UNIQUE32 DRM_IOWR(0x01, drm_unique32_t)
+#define DRM_IOCTL_GET_MAP32 DRM_IOWR(0x04, drm_map32_t)
+#define DRM_IOCTL_GET_CLIENT32 DRM_IOWR(0x05, drm_client32_t)
+#define DRM_IOCTL_GET_STATS32 DRM_IOR( 0x06, drm_stats32_t)
+
+#define DRM_IOCTL_SET_UNIQUE32 DRM_IOW( 0x10, drm_unique32_t)
+#define DRM_IOCTL_ADD_MAP32 DRM_IOWR(0x15, drm_map32_t)
+#define DRM_IOCTL_ADD_BUFS32 DRM_IOWR(0x16, drm_buf_desc32_t)
+#define DRM_IOCTL_MARK_BUFS32 DRM_IOW( 0x17, drm_buf_desc32_t)
+#define DRM_IOCTL_INFO_BUFS32 DRM_IOWR(0x18, drm_buf_info32_t)
+#define DRM_IOCTL_MAP_BUFS32 DRM_IOWR(0x19, drm_buf_map32_t)
+#define DRM_IOCTL_FREE_BUFS32 DRM_IOW( 0x1a, drm_buf_free32_t)
+
+#define DRM_IOCTL_RM_MAP32 DRM_IOW( 0x1b, drm_map32_t)
+
+#define DRM_IOCTL_SET_SAREA_CTX32 DRM_IOW( 0x1c, drm_ctx_priv_map32_t)
+#define DRM_IOCTL_GET_SAREA_CTX32 DRM_IOWR(0x1d, drm_ctx_priv_map32_t)
+
+#define DRM_IOCTL_RES_CTX32 DRM_IOWR(0x26, drm_ctx_res32_t)
+#define DRM_IOCTL_DMA32 DRM_IOWR(0x29, drm_dma32_t)
+
+#define DRM_IOCTL_AGP_ENABLE32 DRM_IOW( 0x32, drm_agp_mode32_t)
+#define DRM_IOCTL_AGP_INFO32 DRM_IOR( 0x33, drm_agp_info32_t)
+#define DRM_IOCTL_AGP_ALLOC32 DRM_IOWR(0x34, drm_agp_buffer32_t)
+#define DRM_IOCTL_AGP_FREE32 DRM_IOW( 0x35, drm_agp_buffer32_t)
+#define DRM_IOCTL_AGP_BIND32 DRM_IOW( 0x36, drm_agp_binding32_t)
+#define DRM_IOCTL_AGP_UNBIND32 DRM_IOW( 0x37, drm_agp_binding32_t)
+
+#define DRM_IOCTL_SG_ALLOC32 DRM_IOW( 0x38, drm_scatter_gather32_t)
+#define DRM_IOCTL_SG_FREE32 DRM_IOW( 0x39, drm_scatter_gather32_t)
+
+#define DRM_IOCTL_UPDATE_DRAW32 DRM_IOW( 0x3f, drm_update_draw32_t)
+
+#define DRM_IOCTL_WAIT_VBLANK32 DRM_IOWR(0x3a, drm_wait_vblank32_t)
+
+typedef struct drm_version_32 {
+ int version_major; /**< Major version */
+ int version_minor; /**< Minor version */
+ int version_patchlevel; /**< Patch level */
+ u32 name_len; /**< Length of name buffer */
+ u32 name; /**< Name of driver */
+ u32 date_len; /**< Length of date buffer */
+ u32 date; /**< User-space buffer to hold date */
+ u32 desc_len; /**< Length of desc buffer */
+ u32 desc; /**< User-space buffer to hold desc */
+} drm_version32_t;
+
+static int compat_drm_version(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_version32_t v32;
+ struct drm_version __user *version;
+ int err;
+
+ if (copy_from_user(&v32, (void __user *)arg, sizeof(v32)))
+ return -EFAULT;
+
+ version = compat_alloc_user_space(sizeof(*version));
+ if (!access_ok(VERIFY_WRITE, version, sizeof(*version)))
+ return -EFAULT;
+ if (__put_user(v32.name_len, &version->name_len)
+ || __put_user((void __user *)(unsigned long)v32.name,
+ &version->name)
+ || __put_user(v32.date_len, &version->date_len)
+ || __put_user((void __user *)(unsigned long)v32.date,
+ &version->date)
+ || __put_user(v32.desc_len, &version->desc_len)
+ || __put_user((void __user *)(unsigned long)v32.desc,
+ &version->desc))
+ return -EFAULT;
+
+ err = drm_ioctl(file,
+ DRM_IOCTL_VERSION, (unsigned long)version);
+ if (err)
+ return err;
+
+ if (__get_user(v32.version_major, &version->version_major)
+ || __get_user(v32.version_minor, &version->version_minor)
+ || __get_user(v32.version_patchlevel, &version->version_patchlevel)
+ || __get_user(v32.name_len, &version->name_len)
+ || __get_user(v32.date_len, &version->date_len)
+ || __get_user(v32.desc_len, &version->desc_len))
+ return -EFAULT;
+
+ if (copy_to_user((void __user *)arg, &v32, sizeof(v32)))
+ return -EFAULT;
+ return 0;
+}
+
+typedef struct drm_unique32 {
+ u32 unique_len; /**< Length of unique */
+ u32 unique; /**< Unique name for driver instantiation */
+} drm_unique32_t;
+
+static int compat_drm_getunique(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_unique32_t uq32;
+ struct drm_unique __user *u;
+ int err;
+
+ if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
+ return -EFAULT;
+
+ u = compat_alloc_user_space(sizeof(*u));
+ if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
+ return -EFAULT;
+ if (__put_user(uq32.unique_len, &u->unique_len)
+ || __put_user((void __user *)(unsigned long)uq32.unique,
+ &u->unique))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_GET_UNIQUE, (unsigned long)u);
+ if (err)
+ return err;
+
+ if (__get_user(uq32.unique_len, &u->unique_len))
+ return -EFAULT;
+ if (copy_to_user((void __user *)arg, &uq32, sizeof(uq32)))
+ return -EFAULT;
+ return 0;
+}
+
+static int compat_drm_setunique(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_unique32_t uq32;
+ struct drm_unique __user *u;
+
+ if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
+ return -EFAULT;
+
+ u = compat_alloc_user_space(sizeof(*u));
+ if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
+ return -EFAULT;
+ if (__put_user(uq32.unique_len, &u->unique_len)
+ || __put_user((void __user *)(unsigned long)uq32.unique,
+ &u->unique))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_SET_UNIQUE, (unsigned long)u);
+}
+
+typedef struct drm_map32 {
+ u32 offset; /**< Requested physical address (0 for SAREA)*/
+ u32 size; /**< Requested physical size (bytes) */
+ enum drm_map_type type; /**< Type of memory to map */
+ enum drm_map_flags flags; /**< Flags */
+ u32 handle; /**< User-space: "Handle" to pass to mmap() */
+ int mtrr; /**< MTRR slot used */
+} drm_map32_t;
+
+static int compat_drm_getmap(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_map32_t __user *argp = (void __user *)arg;
+ drm_map32_t m32;
+ struct drm_map __user *map;
+ int idx, err;
+ void *handle;
+
+ if (get_user(idx, &argp->offset))
+ return -EFAULT;
+
+ map = compat_alloc_user_space(sizeof(*map));
+ if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
+ return -EFAULT;
+ if (__put_user(idx, &map->offset))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_GET_MAP, (unsigned long)map);
+ if (err)
+ return err;
+
+ if (__get_user(m32.offset, &map->offset)
+ || __get_user(m32.size, &map->size)
+ || __get_user(m32.type, &map->type)
+ || __get_user(m32.flags, &map->flags)
+ || __get_user(handle, &map->handle)
+ || __get_user(m32.mtrr, &map->mtrr))
+ return -EFAULT;
+
+ m32.handle = (unsigned long)handle;
+ if (copy_to_user(argp, &m32, sizeof(m32)))
+ return -EFAULT;
+ return 0;
+
+}
+
+static int compat_drm_addmap(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_map32_t __user *argp = (void __user *)arg;
+ drm_map32_t m32;
+ struct drm_map __user *map;
+ int err;
+ void *handle;
+
+ if (copy_from_user(&m32, argp, sizeof(m32)))
+ return -EFAULT;
+
+ map = compat_alloc_user_space(sizeof(*map));
+ if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
+ return -EFAULT;
+ if (__put_user(m32.offset, &map->offset)
+ || __put_user(m32.size, &map->size)
+ || __put_user(m32.type, &map->type)
+ || __put_user(m32.flags, &map->flags))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_ADD_MAP, (unsigned long)map);
+ if (err)
+ return err;
+
+ if (__get_user(m32.offset, &map->offset)
+ || __get_user(m32.mtrr, &map->mtrr)
+ || __get_user(handle, &map->handle))
+ return -EFAULT;
+
+ m32.handle = (unsigned long)handle;
+ if (m32.handle != (unsigned long)handle)
+ printk_ratelimited(KERN_ERR "compat_drm_addmap truncated handle"
+ " %p for type %d offset %x\n",
+ handle, m32.type, m32.offset);
+
+ if (copy_to_user(argp, &m32, sizeof(m32)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int compat_drm_rmmap(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_map32_t __user *argp = (void __user *)arg;
+ struct drm_map __user *map;
+ u32 handle;
+
+ if (get_user(handle, &argp->handle))
+ return -EFAULT;
+
+ map = compat_alloc_user_space(sizeof(*map));
+ if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
+ return -EFAULT;
+ if (__put_user((void *)(unsigned long)handle, &map->handle))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_RM_MAP, (unsigned long)map);
+}
+
+typedef struct drm_client32 {
+ int idx; /**< Which client desired? */
+ int auth; /**< Is client authenticated? */
+ u32 pid; /**< Process ID */
+ u32 uid; /**< User ID */
+ u32 magic; /**< Magic */
+ u32 iocs; /**< Ioctl count */
+} drm_client32_t;
+
+static int compat_drm_getclient(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_client32_t c32;
+ drm_client32_t __user *argp = (void __user *)arg;
+ struct drm_client __user *client;
+ int idx, err;
+
+ if (get_user(idx, &argp->idx))
+ return -EFAULT;
+
+ client = compat_alloc_user_space(sizeof(*client));
+ if (!access_ok(VERIFY_WRITE, client, sizeof(*client)))
+ return -EFAULT;
+ if (__put_user(idx, &client->idx))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_GET_CLIENT, (unsigned long)client);
+ if (err)
+ return err;
+
+ if (__get_user(c32.idx, &client->idx)
+ || __get_user(c32.auth, &client->auth)
+ || __get_user(c32.pid, &client->pid)
+ || __get_user(c32.uid, &client->uid)
+ || __get_user(c32.magic, &client->magic)
+ || __get_user(c32.iocs, &client->iocs))
+ return -EFAULT;
+
+ if (copy_to_user(argp, &c32, sizeof(c32)))
+ return -EFAULT;
+ return 0;
+}
+
+typedef struct drm_stats32 {
+ u32 count;
+ struct {
+ u32 value;
+ enum drm_stat_type type;
+ } data[15];
+} drm_stats32_t;
+
+static int compat_drm_getstats(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_stats32_t s32;
+ drm_stats32_t __user *argp = (void __user *)arg;
+ struct drm_stats __user *stats;
+ int i, err;
+
+ stats = compat_alloc_user_space(sizeof(*stats));
+ if (!access_ok(VERIFY_WRITE, stats, sizeof(*stats)))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_GET_STATS, (unsigned long)stats);
+ if (err)
+ return err;
+
+ if (__get_user(s32.count, &stats->count))
+ return -EFAULT;
+ for (i = 0; i < 15; ++i)
+ if (__get_user(s32.data[i].value, &stats->data[i].value)
+ || __get_user(s32.data[i].type, &stats->data[i].type))
+ return -EFAULT;
+
+ if (copy_to_user(argp, &s32, sizeof(s32)))
+ return -EFAULT;
+ return 0;
+}
+
+typedef struct drm_buf_desc32 {
+ int count; /**< Number of buffers of this size */
+ int size; /**< Size in bytes */
+ int low_mark; /**< Low water mark */
+ int high_mark; /**< High water mark */
+ int flags;
+ u32 agp_start; /**< Start address in the AGP aperture */
+} drm_buf_desc32_t;
+
+static int compat_drm_addbufs(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_buf_desc32_t __user *argp = (void __user *)arg;
+ struct drm_buf_desc __user *buf;
+ int err;
+ unsigned long agp_start;
+
+ buf = compat_alloc_user_space(sizeof(*buf));
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf))
+ || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)))
+ return -EFAULT;
+
+ if (__copy_in_user(buf, argp, offsetof(drm_buf_desc32_t, agp_start))
+ || __get_user(agp_start, &argp->agp_start)
+ || __put_user(agp_start, &buf->agp_start))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_ADD_BUFS, (unsigned long)buf);
+ if (err)
+ return err;
+
+ if (__copy_in_user(argp, buf, offsetof(drm_buf_desc32_t, agp_start))
+ || __get_user(agp_start, &buf->agp_start)
+ || __put_user(agp_start, &argp->agp_start))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int compat_drm_markbufs(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_buf_desc32_t b32;
+ drm_buf_desc32_t __user *argp = (void __user *)arg;
+ struct drm_buf_desc __user *buf;
+
+ if (copy_from_user(&b32, argp, sizeof(b32)))
+ return -EFAULT;
+
+ buf = compat_alloc_user_space(sizeof(*buf));
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf)))
+ return -EFAULT;
+
+ if (__put_user(b32.size, &buf->size)
+ || __put_user(b32.low_mark, &buf->low_mark)
+ || __put_user(b32.high_mark, &buf->high_mark))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_MARK_BUFS, (unsigned long)buf);
+}
+
+typedef struct drm_buf_info32 {
+ int count; /**< Entries in list */
+ u32 list;
+} drm_buf_info32_t;
+
+static int compat_drm_infobufs(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_buf_info32_t req32;
+ drm_buf_info32_t __user *argp = (void __user *)arg;
+ drm_buf_desc32_t __user *to;
+ struct drm_buf_info __user *request;
+ struct drm_buf_desc __user *list;
+ size_t nbytes;
+ int i, err;
+ int count, actual;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+
+ count = req32.count;
+ to = (drm_buf_desc32_t __user *) (unsigned long)req32.list;
+ if (count < 0)
+ count = 0;
+ if (count > 0
+ && !access_ok(VERIFY_WRITE, to, count * sizeof(drm_buf_desc32_t)))
+ return -EFAULT;
+
+ nbytes = sizeof(*request) + count * sizeof(struct drm_buf_desc);
+ request = compat_alloc_user_space(nbytes);
+ if (!access_ok(VERIFY_WRITE, request, nbytes))
+ return -EFAULT;
+ list = (struct drm_buf_desc *) (request + 1);
+
+ if (__put_user(count, &request->count)
+ || __put_user(list, &request->list))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_INFO_BUFS, (unsigned long)request);
+ if (err)
+ return err;
+
+ if (__get_user(actual, &request->count))
+ return -EFAULT;
+ if (count >= actual)
+ for (i = 0; i < actual; ++i)
+ if (__copy_in_user(&to[i], &list[i],
+ offsetof(struct drm_buf_desc, flags)))
+ return -EFAULT;
+
+ if (__put_user(actual, &argp->count))
+ return -EFAULT;
+
+ return 0;
+}
+
+typedef struct drm_buf_pub32 {
+ int idx; /**< Index into the master buffer list */
+ int total; /**< Buffer size */
+ int used; /**< Amount of buffer in use (for DMA) */
+ u32 address; /**< Address of buffer */
+} drm_buf_pub32_t;
+
+typedef struct drm_buf_map32 {
+ int count; /**< Length of the buffer list */
+ u32 virtual; /**< Mmap'd area in user-virtual */
+ u32 list; /**< Buffer information */
+} drm_buf_map32_t;
+
+static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_buf_map32_t __user *argp = (void __user *)arg;
+ drm_buf_map32_t req32;
+ drm_buf_pub32_t __user *list32;
+ struct drm_buf_map __user *request;
+ struct drm_buf_pub __user *list;
+ int i, err;
+ int count, actual;
+ size_t nbytes;
+ void __user *addr;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+ count = req32.count;
+ list32 = (void __user *)(unsigned long)req32.list;
+
+ if (count < 0)
+ return -EINVAL;
+ nbytes = sizeof(*request) + count * sizeof(struct drm_buf_pub);
+ request = compat_alloc_user_space(nbytes);
+ if (!access_ok(VERIFY_WRITE, request, nbytes))
+ return -EFAULT;
+ list = (struct drm_buf_pub *) (request + 1);
+
+ if (__put_user(count, &request->count)
+ || __put_user(list, &request->list))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_MAP_BUFS, (unsigned long)request);
+ if (err)
+ return err;
+
+ if (__get_user(actual, &request->count))
+ return -EFAULT;
+ if (count >= actual)
+ for (i = 0; i < actual; ++i)
+ if (__copy_in_user(&list32[i], &list[i],
+ offsetof(struct drm_buf_pub, address))
+ || __get_user(addr, &list[i].address)
+ || __put_user((unsigned long)addr,
+ &list32[i].address))
+ return -EFAULT;
+
+ if (__put_user(actual, &argp->count)
+ || __get_user(addr, &request->virtual)
+ || __put_user((unsigned long)addr, &argp->virtual))
+ return -EFAULT;
+
+ return 0;
+}
+
+typedef struct drm_buf_free32 {
+ int count;
+ u32 list;
+} drm_buf_free32_t;
+
+static int compat_drm_freebufs(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_buf_free32_t req32;
+ struct drm_buf_free __user *request;
+ drm_buf_free32_t __user *argp = (void __user *)arg;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
+ return -EFAULT;
+ if (__put_user(req32.count, &request->count)
+ || __put_user((int __user *)(unsigned long)req32.list,
+ &request->list))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_FREE_BUFS, (unsigned long)request);
+}
+
+typedef struct drm_ctx_priv_map32 {
+ unsigned int ctx_id; /**< Context requesting private mapping */
+ u32 handle; /**< Handle of map */
+} drm_ctx_priv_map32_t;
+
+static int compat_drm_setsareactx(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_ctx_priv_map32_t req32;
+ struct drm_ctx_priv_map __user *request;
+ drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
+ return -EFAULT;
+ if (__put_user(req32.ctx_id, &request->ctx_id)
+ || __put_user((void *)(unsigned long)req32.handle,
+ &request->handle))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_SET_SAREA_CTX, (unsigned long)request);
+}
+
+static int compat_drm_getsareactx(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct drm_ctx_priv_map __user *request;
+ drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
+ int err;
+ unsigned int ctx_id;
+ void *handle;
+
+ if (!access_ok(VERIFY_WRITE, argp, sizeof(*argp))
+ || __get_user(ctx_id, &argp->ctx_id))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
+ return -EFAULT;
+ if (__put_user(ctx_id, &request->ctx_id))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request);
+ if (err)
+ return err;
+
+ if (__get_user(handle, &request->handle)
+ || __put_user((unsigned long)handle, &argp->handle))
+ return -EFAULT;
+
+ return 0;
+}
+
+typedef struct drm_ctx_res32 {
+ int count;
+ u32 contexts;
+} drm_ctx_res32_t;
+
+static int compat_drm_resctx(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_ctx_res32_t __user *argp = (void __user *)arg;
+ drm_ctx_res32_t res32;
+ struct drm_ctx_res __user *res;
+ int err;
+
+ if (copy_from_user(&res32, argp, sizeof(res32)))
+ return -EFAULT;
+
+ res = compat_alloc_user_space(sizeof(*res));
+ if (!access_ok(VERIFY_WRITE, res, sizeof(*res)))
+ return -EFAULT;
+ if (__put_user(res32.count, &res->count)
+ || __put_user((struct drm_ctx __user *) (unsigned long)res32.contexts,
+ &res->contexts))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_RES_CTX, (unsigned long)res);
+ if (err)
+ return err;
+
+ if (__get_user(res32.count, &res->count)
+ || __put_user(res32.count, &argp->count))
+ return -EFAULT;
+
+ return 0;
+}
+
+typedef struct drm_dma32 {
+ int context; /**< Context handle */
+ int send_count; /**< Number of buffers to send */
+ u32 send_indices; /**< List of handles to buffers */
+ u32 send_sizes; /**< Lengths of data to send */
+ enum drm_dma_flags flags; /**< Flags */
+ int request_count; /**< Number of buffers requested */
+ int request_size; /**< Desired size for buffers */
+ u32 request_indices; /**< Buffer information */
+ u32 request_sizes;
+ int granted_count; /**< Number of buffers granted */
+} drm_dma32_t;
+
+static int compat_drm_dma(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_dma32_t d32;
+ drm_dma32_t __user *argp = (void __user *)arg;
+ struct drm_dma __user *d;
+ int err;
+
+ if (copy_from_user(&d32, argp, sizeof(d32)))
+ return -EFAULT;
+
+ d = compat_alloc_user_space(sizeof(*d));
+ if (!access_ok(VERIFY_WRITE, d, sizeof(*d)))
+ return -EFAULT;
+
+ if (__put_user(d32.context, &d->context)
+ || __put_user(d32.send_count, &d->send_count)
+ || __put_user((int __user *)(unsigned long)d32.send_indices,
+ &d->send_indices)
+ || __put_user((int __user *)(unsigned long)d32.send_sizes,
+ &d->send_sizes)
+ || __put_user(d32.flags, &d->flags)
+ || __put_user(d32.request_count, &d->request_count)
+ || __put_user((int __user *)(unsigned long)d32.request_indices,
+ &d->request_indices)
+ || __put_user((int __user *)(unsigned long)d32.request_sizes,
+ &d->request_sizes))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_DMA, (unsigned long)d);
+ if (err)
+ return err;
+
+ if (__get_user(d32.request_size, &d->request_size)
+ || __get_user(d32.granted_count, &d->granted_count)
+ || __put_user(d32.request_size, &argp->request_size)
+ || __put_user(d32.granted_count, &argp->granted_count))
+ return -EFAULT;
+
+ return 0;
+}
+
+#if __OS_HAS_AGP
+typedef struct drm_agp_mode32 {
+ u32 mode; /**< AGP mode */
+} drm_agp_mode32_t;
+
+static int compat_drm_agp_enable(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_agp_mode32_t __user *argp = (void __user *)arg;
+ drm_agp_mode32_t m32;
+ struct drm_agp_mode __user *mode;
+
+ if (get_user(m32.mode, &argp->mode))
+ return -EFAULT;
+
+ mode = compat_alloc_user_space(sizeof(*mode));
+ if (put_user(m32.mode, &mode->mode))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_AGP_ENABLE, (unsigned long)mode);
+}
+
+typedef struct drm_agp_info32 {
+ int agp_version_major;
+ int agp_version_minor;
+ u32 mode;
+ u32 aperture_base; /* physical address */
+ u32 aperture_size; /* bytes */
+ u32 memory_allowed; /* bytes */
+ u32 memory_used;
+
+ /* PCI information */
+ unsigned short id_vendor;
+ unsigned short id_device;
+} drm_agp_info32_t;
+
+static int compat_drm_agp_info(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_agp_info32_t __user *argp = (void __user *)arg;
+ drm_agp_info32_t i32;
+ struct drm_agp_info __user *info;
+ int err;
+
+ info = compat_alloc_user_space(sizeof(*info));
+ if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_AGP_INFO, (unsigned long)info);
+ if (err)
+ return err;
+
+ if (__get_user(i32.agp_version_major, &info->agp_version_major)
+ || __get_user(i32.agp_version_minor, &info->agp_version_minor)
+ || __get_user(i32.mode, &info->mode)
+ || __get_user(i32.aperture_base, &info->aperture_base)
+ || __get_user(i32.aperture_size, &info->aperture_size)
+ || __get_user(i32.memory_allowed, &info->memory_allowed)
+ || __get_user(i32.memory_used, &info->memory_used)
+ || __get_user(i32.id_vendor, &info->id_vendor)
+ || __get_user(i32.id_device, &info->id_device))
+ return -EFAULT;
+
+ if (copy_to_user(argp, &i32, sizeof(i32)))
+ return -EFAULT;
+
+ return 0;
+}
+
+typedef struct drm_agp_buffer32 {
+ u32 size; /**< In bytes -- will round to page boundary */
+ u32 handle; /**< Used for binding / unbinding */
+ u32 type; /**< Type of memory to allocate */
+ u32 physical; /**< Physical used by i810 */
+} drm_agp_buffer32_t;
+
+static int compat_drm_agp_alloc(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_agp_buffer32_t __user *argp = (void __user *)arg;
+ drm_agp_buffer32_t req32;
+ struct drm_agp_buffer __user *request;
+ int err;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || __put_user(req32.size, &request->size)
+ || __put_user(req32.type, &request->type))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_AGP_ALLOC, (unsigned long)request);
+ if (err)
+ return err;
+
+ if (__get_user(req32.handle, &request->handle)
+ || __get_user(req32.physical, &request->physical)
+ || copy_to_user(argp, &req32, sizeof(req32))) {
+ drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request);
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static int compat_drm_agp_free(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_agp_buffer32_t __user *argp = (void __user *)arg;
+ struct drm_agp_buffer __user *request;
+ u32 handle;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || get_user(handle, &argp->handle)
+ || __put_user(handle, &request->handle))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request);
+}
+
+typedef struct drm_agp_binding32 {
+ u32 handle; /**< From drm_agp_buffer */
+ u32 offset; /**< In bytes -- will round to page boundary */
+} drm_agp_binding32_t;
+
+static int compat_drm_agp_bind(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_agp_binding32_t __user *argp = (void __user *)arg;
+ drm_agp_binding32_t req32;
+ struct drm_agp_binding __user *request;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || __put_user(req32.handle, &request->handle)
+ || __put_user(req32.offset, &request->offset))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_AGP_BIND, (unsigned long)request);
+}
+
+static int compat_drm_agp_unbind(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_agp_binding32_t __user *argp = (void __user *)arg;
+ struct drm_agp_binding __user *request;
+ u32 handle;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || get_user(handle, &argp->handle)
+ || __put_user(handle, &request->handle))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_AGP_UNBIND, (unsigned long)request);
+}
+#endif /* __OS_HAS_AGP */
+
+typedef struct drm_scatter_gather32 {
+ u32 size; /**< In bytes -- will round to page boundary */
+ u32 handle; /**< Used for mapping / unmapping */
+} drm_scatter_gather32_t;
+
+static int compat_drm_sg_alloc(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_scatter_gather32_t __user *argp = (void __user *)arg;
+ struct drm_scatter_gather __user *request;
+ int err;
+ unsigned long x;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
+ || __get_user(x, &argp->size)
+ || __put_user(x, &request->size))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_SG_ALLOC, (unsigned long)request);
+ if (err)
+ return err;
+
+ /* XXX not sure about the handle conversion here... */
+ if (__get_user(x, &request->handle)
+ || __put_user(x >> PAGE_SHIFT, &argp->handle))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int compat_drm_sg_free(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_scatter_gather32_t __user *argp = (void __user *)arg;
+ struct drm_scatter_gather __user *request;
+ unsigned long x;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
+ || __get_user(x, &argp->handle)
+ || __put_user(x << PAGE_SHIFT, &request->handle))
+ return -EFAULT;
+
+ return drm_ioctl(file, DRM_IOCTL_SG_FREE, (unsigned long)request);
+}
+
+#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+typedef struct drm_update_draw32 {
+ drm_drawable_t handle;
+ unsigned int type;
+ unsigned int num;
+ /* 64-bit version has a 32-bit pad here */
+ u64 data; /**< Pointer */
+} __attribute__((packed)) drm_update_draw32_t;
+
+static int compat_drm_update_draw(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_update_draw32_t update32;
+ struct drm_update_draw __user *request;
+ int err;
+
+ if (copy_from_user(&update32, (void __user *)arg, sizeof(update32)))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) ||
+ __put_user(update32.handle, &request->handle) ||
+ __put_user(update32.type, &request->type) ||
+ __put_user(update32.num, &request->num) ||
+ __put_user(update32.data, &request->data))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_UPDATE_DRAW, (unsigned long)request);
+ return err;
+}
+#endif
+
+struct drm_wait_vblank_request32 {
+ enum drm_vblank_seq_type type;
+ unsigned int sequence;
+ u32 signal;
+};
+
+struct drm_wait_vblank_reply32 {
+ enum drm_vblank_seq_type type;
+ unsigned int sequence;
+ s32 tval_sec;
+ s32 tval_usec;
+};
+
+typedef union drm_wait_vblank32 {
+ struct drm_wait_vblank_request32 request;
+ struct drm_wait_vblank_reply32 reply;
+} drm_wait_vblank32_t;
+
+static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_wait_vblank32_t __user *argp = (void __user *)arg;
+ drm_wait_vblank32_t req32;
+ union drm_wait_vblank __user *request;
+ int err;
+
+ if (copy_from_user(&req32, argp, sizeof(req32)))
+ return -EFAULT;
+
+ request = compat_alloc_user_space(sizeof(*request));
+ if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ || __put_user(req32.request.type, &request->request.type)
+ || __put_user(req32.request.sequence, &request->request.sequence)
+ || __put_user(req32.request.signal, &request->request.signal))
+ return -EFAULT;
+
+ err = drm_ioctl(file, DRM_IOCTL_WAIT_VBLANK, (unsigned long)request);
+ if (err)
+ return err;
+
+ if (__get_user(req32.reply.type, &request->reply.type)
+ || __get_user(req32.reply.sequence, &request->reply.sequence)
+ || __get_user(req32.reply.tval_sec, &request->reply.tval_sec)
+ || __get_user(req32.reply.tval_usec, &request->reply.tval_usec))
+ return -EFAULT;
+
+ if (copy_to_user(argp, &req32, sizeof(req32)))
+ return -EFAULT;
+
+ return 0;
+}
+
+drm_ioctl_compat_t *drm_compat_ioctls[] = {
+ [DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT32)] = compat_drm_getclient,
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS32)] = compat_drm_getstats,
+ [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE32)] = compat_drm_setunique,
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP32)] = compat_drm_addmap,
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS32)] = compat_drm_addbufs,
+ [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)] = compat_drm_markbufs,
+ [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS32)] = compat_drm_infobufs,
+ [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)] = compat_drm_mapbufs,
+ [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS32)] = compat_drm_freebufs,
+ [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)] = compat_drm_rmmap,
+ [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX32)] = compat_drm_setsareactx,
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX32)] = compat_drm_getsareactx,
+ [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)] = compat_drm_resctx,
+ [DRM_IOCTL_NR(DRM_IOCTL_DMA32)] = compat_drm_dma,
+#if __OS_HAS_AGP
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)] = compat_drm_agp_enable,
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO32)] = compat_drm_agp_info,
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC32)] = compat_drm_agp_alloc,
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE32)] = compat_drm_agp_free,
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND32)] = compat_drm_agp_bind,
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND32)] = compat_drm_agp_unbind,
+#endif
+ [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC32)] = compat_drm_sg_alloc,
+ [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE32)] = compat_drm_sg_free,
+#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+ [DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW32)] = compat_drm_update_draw,
+#endif
+ [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)] = compat_drm_wait_vblank,
+};
+
+/**
+ * Called whenever a 32-bit process running under a 64-bit kernel
+ * performs an ioctl on /dev/drm.
+ *
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument.
+ * \return zero on success or negative number on failure.
+ */
+long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+ unsigned int nr = DRM_IOCTL_NR(cmd);
+ drm_ioctl_compat_t *fn;
+ int ret;
+
+ /* Assume that ioctls without an explicit compat routine will just
+ * work. This may not always be a good assumption, but it's better
+ * than always failing.
+ */
+ if (nr >= ARRAY_SIZE(drm_compat_ioctls))
+ return drm_ioctl(filp, cmd, arg);
+
+ fn = drm_compat_ioctls[nr];
+
+ if (fn != NULL)
+ ret = (*fn) (filp, cmd, arg);
+ else
+ ret = drm_ioctl(filp, cmd, arg);
+
+ return ret;
+}
+
+EXPORT_SYMBOL(drm_compat_ioctl);
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
new file mode 100644
index 0000000..64a62c6
--- /dev/null
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -0,0 +1,360 @@
+/**
+ * \file drm_ioctl.c
+ * IOCTL processing for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Jan 8 09:01:26 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include "drm_core.h"
+
+#include "linux/pci.h"
+#include "linux/export.h"
+
+/**
+ * Get the bus id.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_unique structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Copies the bus id from drm_device::unique into user space.
+ */
+int drm_getunique(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_unique *u = data;
+ struct drm_master *master = file_priv->master;
+
+ if (u->unique_len >= master->unique_len) {
+ if (copy_to_user(u->unique, master->unique, master->unique_len))
+ return -EFAULT;
+ }
+ u->unique_len = master->unique_len;
+
+ return 0;
+}
+
+static void
+drm_unset_busid(struct drm_device *dev,
+ struct drm_master *master)
+{
+ kfree(dev->devname);
+ dev->devname = NULL;
+
+ kfree(master->unique);
+ master->unique = NULL;
+ master->unique_len = 0;
+ master->unique_size = 0;
+}
+
+/**
+ * Set the bus id.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_unique structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Copies the bus id from userspace into drm_device::unique, and verifies that
+ * it matches the device this DRM is attached to (EINVAL otherwise). Deprecated
+ * in interface version 1.1 and will return EBUSY when setversion has requested
+ * version 1.1 or greater.
+ */
+int drm_setunique(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_unique *u = data;
+ struct drm_master *master = file_priv->master;
+ int ret;
+
+ if (master->unique_len || master->unique)
+ return -EBUSY;
+
+ if (!u->unique_len || u->unique_len > 1024)
+ return -EINVAL;
+
+ if (!dev->driver->bus->set_unique)
+ return -EINVAL;
+
+ ret = dev->driver->bus->set_unique(dev, master, u);
+ if (ret)
+ goto err;
+
+ return 0;
+
+err:
+ drm_unset_busid(dev, master);
+ return ret;
+}
+
+static int drm_set_busid(struct drm_device *dev, struct drm_file *file_priv)
+{
+ struct drm_master *master = file_priv->master;
+ int ret;
+
+ if (master->unique != NULL)
+ drm_unset_busid(dev, master);
+
+ ret = dev->driver->bus->set_busid(dev, master);
+ if (ret)
+ goto err;
+ return 0;
+err:
+ drm_unset_busid(dev, master);
+ return ret;
+}
+
+/**
+ * Get a mapping information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_map structure.
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches for the mapping with the specified offset and copies its information
+ * into userspace
+ */
+int drm_getmap(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_map *map = data;
+ struct drm_map_list *r_list = NULL;
+ struct list_head *list;
+ int idx;
+ int i;
+
+ idx = map->offset;
+ if (idx < 0)
+ return -EINVAL;
+
+ i = 0;
+ mutex_lock(&dev->struct_mutex);
+ list_for_each(list, &dev->maplist) {
+ if (i == idx) {
+ r_list = list_entry(list, struct drm_map_list, head);
+ break;
+ }
+ i++;
+ }
+ if (!r_list || !r_list->map) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ map->offset = r_list->map->offset;
+ map->size = r_list->map->size;
+ map->type = r_list->map->type;
+ map->flags = r_list->map->flags;
+ map->handle = (void *)(unsigned long) r_list->user_token;
+ map->mtrr = r_list->map->mtrr;
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+/**
+ * Get client information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_client structure.
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches for the client with the specified index and copies its information
+ * into userspace
+ */
+int drm_getclient(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_client *client = data;
+ struct drm_file *pt;
+ int idx;
+ int i;
+
+ idx = client->idx;
+ i = 0;
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry(pt, &dev->filelist, lhead) {
+ if (i++ >= idx) {
+ client->auth = pt->authenticated;
+ client->pid = pt->pid;
+ client->uid = pt->uid;
+ client->magic = pt->magic;
+ client->iocs = pt->ioctl_count;
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
+
+ return -EINVAL;
+}
+
+/**
+ * Get statistics information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_stats structure.
+ *
+ * \return zero on success or a negative number on failure.
+ */
+int drm_getstats(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_stats *stats = data;
+ int i;
+
+ memset(stats, 0, sizeof(*stats));
+
+ for (i = 0; i < dev->counters; i++) {
+ if (dev->types[i] == _DRM_STAT_LOCK)
+ stats->data[i].value =
+ (file_priv->master->lock.hw_lock ? file_priv->master->lock.hw_lock->lock : 0);
+ else
+ stats->data[i].value = atomic_read(&dev->counts[i]);
+ stats->data[i].type = dev->types[i];
+ }
+
+ stats->count = dev->counters;
+
+ return 0;
+}
+
+/**
+ * Get device/driver capabilities
+ */
+int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_get_cap *req = data;
+
+ req->value = 0;
+ switch (req->capability) {
+ case DRM_CAP_DUMB_BUFFER:
+ if (dev->driver->dumb_create)
+ req->value = 1;
+ break;
+ case DRM_CAP_VBLANK_HIGH_CRTC:
+ req->value = 1;
+ break;
+ case DRM_CAP_DUMB_PREFERRED_DEPTH:
+ req->value = dev->mode_config.preferred_depth;
+ break;
+ case DRM_CAP_DUMB_PREFER_SHADOW:
+ req->value = dev->mode_config.prefer_shadow;
+ break;
+ case DRM_CAP_PRIME:
+ req->value |= dev->driver->prime_fd_to_handle ? DRM_PRIME_CAP_IMPORT : 0;
+ req->value |= dev->driver->prime_handle_to_fd ? DRM_PRIME_CAP_EXPORT : 0;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+/**
+ * Setversion ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_lock structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Sets the requested interface version
+ */
+int drm_setversion(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ struct drm_set_version *sv = data;
+ int if_version, retcode = 0;
+
+ if (sv->drm_di_major != -1) {
+ if (sv->drm_di_major != DRM_IF_MAJOR ||
+ sv->drm_di_minor < 0 || sv->drm_di_minor > DRM_IF_MINOR) {
+ retcode = -EINVAL;
+ goto done;
+ }
+ if_version = DRM_IF_VERSION(sv->drm_di_major,
+ sv->drm_di_minor);
+ dev->if_version = max(if_version, dev->if_version);
+ if (sv->drm_di_minor >= 1) {
+ /*
+ * Version 1.1 includes tying of DRM to specific device
+ * Version 1.4 has proper PCI domain support
+ */
+ retcode = drm_set_busid(dev, file_priv);
+ if (retcode)
+ goto done;
+ }
+ }
+
+ if (sv->drm_dd_major != -1) {
+ if (sv->drm_dd_major != dev->driver->major ||
+ sv->drm_dd_minor < 0 || sv->drm_dd_minor >
+ dev->driver->minor) {
+ retcode = -EINVAL;
+ goto done;
+ }
+
+ if (dev->driver->set_version)
+ dev->driver->set_version(dev, sv);
+ }
+
+done:
+ sv->drm_di_major = DRM_IF_MAJOR;
+ sv->drm_di_minor = DRM_IF_MINOR;
+ sv->drm_dd_major = dev->driver->major;
+ sv->drm_dd_minor = dev->driver->minor;
+
+ return retcode;
+}
+
+/** No-op ioctl. */
+int drm_noop(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ DRM_DEBUG("\n");
+ return 0;
+}
+EXPORT_SYMBOL(drm_noop);
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
new file mode 100644
index 0000000..03f16f3
--- /dev/null
+++ b/drivers/gpu/drm/drm_irq.c
@@ -0,0 +1,1346 @@
+/**
+ * \file drm_irq.c
+ * IRQ support
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include "drm_trace.h"
+
+#include <linux/interrupt.h> /* For task queue support */
+#include <linux/slab.h>
+
+#include <linux/vgaarb.h>
+#include <linux/export.h>
+
+/* Access macro for slots in vblank timestamp ringbuffer. */
+#define vblanktimestamp(dev, crtc, count) ( \
+ (dev)->_vblank_time[(crtc) * DRM_VBLANKTIME_RBSIZE + \
+ ((count) % DRM_VBLANKTIME_RBSIZE)])
+
+/* Retry timestamp calculation up to 3 times to satisfy
+ * drm_timestamp_precision before giving up.
+ */
+#define DRM_TIMESTAMP_MAXRETRIES 3
+
+/* Threshold in nanoseconds for detection of redundant
+ * vblank irq in drm_handle_vblank(). 1 msec should be ok.
+ */
+#define DRM_REDUNDANT_VBLIRQ_THRESH_NS 1000000
+
+/**
+ * Get interrupt from bus id.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_irq_busid structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Finds the PCI device with the specified bus id and gets its IRQ number.
+ * This IOCTL is deprecated, and will now return EINVAL for any busid not equal
+ * to that of the device that this DRM instance attached to.
+ */
+int drm_irq_by_busid(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_irq_busid *p = data;
+
+ if (!dev->driver->bus->irq_by_busid)
+ return -EINVAL;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return -EINVAL;
+
+ return dev->driver->bus->irq_by_busid(dev, p);
+}
+
+/*
+ * Clear vblank timestamp buffer for a crtc.
+ */
+static void clear_vblank_timestamps(struct drm_device *dev, int crtc)
+{
+ memset(&dev->_vblank_time[crtc * DRM_VBLANKTIME_RBSIZE], 0,
+ DRM_VBLANKTIME_RBSIZE * sizeof(struct timeval));
+}
+
+/*
+ * Disable vblank irq's on crtc, make sure that last vblank count
+ * of hardware and corresponding consistent software vblank counter
+ * are preserved, even if there are any spurious vblank irq's after
+ * disable.
+ */
+static void vblank_disable_and_save(struct drm_device *dev, int crtc)
+{
+ unsigned long irqflags;
+ u32 vblcount;
+ s64 diff_ns;
+ int vblrc;
+ struct timeval tvblank;
+
+ /* Prevent vblank irq processing while disabling vblank irqs,
+ * so no updates of timestamps or count can happen after we've
+ * disabled. Needed to prevent races in case of delayed irq's.
+ */
+ spin_lock_irqsave(&dev->vblank_time_lock, irqflags);
+
+ dev->driver->disable_vblank(dev, crtc);
+ dev->vblank_enabled[crtc] = 0;
+
+ /* No further vblank irq's will be processed after
+ * this point. Get current hardware vblank count and
+ * vblank timestamp, repeat until they are consistent.
+ *
+ * FIXME: There is still a race condition here and in
+ * drm_update_vblank_count() which can cause off-by-one
+ * reinitialization of software vblank counter. If gpu
+ * vblank counter doesn't increment exactly at the leading
+ * edge of a vblank interval, then we can lose 1 count if
+ * we happen to execute between start of vblank and the
+ * delayed gpu counter increment.
+ */
+ do {
+ dev->last_vblank[crtc] = dev->driver->get_vblank_counter(dev, crtc);
+ vblrc = drm_get_last_vbltimestamp(dev, crtc, &tvblank, 0);
+ } while (dev->last_vblank[crtc] != dev->driver->get_vblank_counter(dev, crtc));
+
+ /* Compute time difference to stored timestamp of last vblank
+ * as updated by last invocation of drm_handle_vblank() in vblank irq.
+ */
+ vblcount = atomic_read(&dev->_vblank_count[crtc]);
+ diff_ns = timeval_to_ns(&tvblank) -
+ timeval_to_ns(&vblanktimestamp(dev, crtc, vblcount));
+
+ /* If there is at least 1 msec difference between the last stored
+ * timestamp and tvblank, then we are currently executing our
+ * disable inside a new vblank interval, the tvblank timestamp
+ * corresponds to this new vblank interval and the irq handler
+ * for this vblank didn't run yet and won't run due to our disable.
+ * Therefore we need to do the job of drm_handle_vblank() and
+ * increment the vblank counter by one to account for this vblank.
+ *
+ * Skip this step if there isn't any high precision timestamp
+ * available. In that case we can't account for this and just
+ * hope for the best.
+ */
+ if ((vblrc > 0) && (abs64(diff_ns) > 1000000)) {
+ atomic_inc(&dev->_vblank_count[crtc]);
+ smp_mb__after_atomic_inc();
+ }
+
+ /* Invalidate all timestamps while vblank irq's are off. */
+ clear_vblank_timestamps(dev, crtc);
+
+ spin_unlock_irqrestore(&dev->vblank_time_lock, irqflags);
+}
+
+static void vblank_disable_fn(unsigned long arg)
+{
+ struct drm_device *dev = (struct drm_device *)arg;
+ unsigned long irqflags;
+ int i;
+
+ if (!dev->vblank_disable_allowed)
+ return;
+
+ for (i = 0; i < dev->num_crtcs; i++) {
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ if (atomic_read(&dev->vblank_refcount[i]) == 0 &&
+ dev->vblank_enabled[i]) {
+ DRM_DEBUG("disabling vblank on crtc %d\n", i);
+ vblank_disable_and_save(dev, i);
+ }
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+ }
+}
+
+void drm_vblank_cleanup(struct drm_device *dev)
+{
+ /* Bail if the driver didn't call drm_vblank_init() */
+ if (dev->num_crtcs == 0)
+ return;
+
+ del_timer_sync(&dev->vblank_disable_timer);
+
+ vblank_disable_fn((unsigned long)dev);
+
+ kfree(dev->vbl_queue);
+ kfree(dev->_vblank_count);
+ kfree(dev->vblank_refcount);
+ kfree(dev->vblank_enabled);
+ kfree(dev->last_vblank);
+ kfree(dev->last_vblank_wait);
+ kfree(dev->vblank_inmodeset);
+ kfree(dev->_vblank_time);
+
+ dev->num_crtcs = 0;
+}
+EXPORT_SYMBOL(drm_vblank_cleanup);
+
+int drm_vblank_init(struct drm_device *dev, int num_crtcs)
+{
+ int i, ret = -ENOMEM;
+
+ setup_timer(&dev->vblank_disable_timer, vblank_disable_fn,
+ (unsigned long)dev);
+ spin_lock_init(&dev->vbl_lock);
+ spin_lock_init(&dev->vblank_time_lock);
+
+ dev->num_crtcs = num_crtcs;
+
+ dev->vbl_queue = kmalloc(sizeof(wait_queue_head_t) * num_crtcs,
+ GFP_KERNEL);
+ if (!dev->vbl_queue)
+ goto err;
+
+ dev->_vblank_count = kmalloc(sizeof(atomic_t) * num_crtcs, GFP_KERNEL);
+ if (!dev->_vblank_count)
+ goto err;
+
+ dev->vblank_refcount = kmalloc(sizeof(atomic_t) * num_crtcs,
+ GFP_KERNEL);
+ if (!dev->vblank_refcount)
+ goto err;
+
+ dev->vblank_enabled = kcalloc(num_crtcs, sizeof(int), GFP_KERNEL);
+ if (!dev->vblank_enabled)
+ goto err;
+
+ dev->last_vblank = kcalloc(num_crtcs, sizeof(u32), GFP_KERNEL);
+ if (!dev->last_vblank)
+ goto err;
+
+ dev->last_vblank_wait = kcalloc(num_crtcs, sizeof(u32), GFP_KERNEL);
+ if (!dev->last_vblank_wait)
+ goto err;
+
+ dev->vblank_inmodeset = kcalloc(num_crtcs, sizeof(int), GFP_KERNEL);
+ if (!dev->vblank_inmodeset)
+ goto err;
+
+ dev->_vblank_time = kcalloc(num_crtcs * DRM_VBLANKTIME_RBSIZE,
+ sizeof(struct timeval), GFP_KERNEL);
+ if (!dev->_vblank_time)
+ goto err;
+
+ DRM_INFO("Supports vblank timestamp caching Rev 1 (10.10.2010).\n");
+
+ /* Driver specific high-precision vblank timestamping supported? */
+ if (dev->driver->get_vblank_timestamp)
+ DRM_INFO("Driver supports precise vblank timestamp query.\n");
+ else
+ DRM_INFO("No driver support for vblank timestamp query.\n");
+
+ /* Zero per-crtc vblank stuff */
+ for (i = 0; i < num_crtcs; i++) {
+ init_waitqueue_head(&dev->vbl_queue[i]);
+ atomic_set(&dev->_vblank_count[i], 0);
+ atomic_set(&dev->vblank_refcount[i], 0);
+ }
+
+ dev->vblank_disable_allowed = 0;
+ return 0;
+
+err:
+ drm_vblank_cleanup(dev);
+ return ret;
+}
+EXPORT_SYMBOL(drm_vblank_init);
+
+static void drm_irq_vgaarb_nokms(void *cookie, bool state)
+{
+ struct drm_device *dev = cookie;
+
+ if (dev->driver->vgaarb_irq) {
+ dev->driver->vgaarb_irq(dev, state);
+ return;
+ }
+
+ if (!dev->irq_enabled)
+ return;
+
+ if (state) {
+ if (dev->driver->irq_uninstall)
+ dev->driver->irq_uninstall(dev);
+ } else {
+ if (dev->driver->irq_preinstall)
+ dev->driver->irq_preinstall(dev);
+ if (dev->driver->irq_postinstall)
+ dev->driver->irq_postinstall(dev);
+ }
+}
+
+/**
+ * Install IRQ handler.
+ *
+ * \param dev DRM device.
+ *
+ * Initializes the IRQ related data. Installs the handler, calling the driver
+ * \c irq_preinstall() and \c irq_postinstall() functions
+ * before and after the installation.
+ */
+int drm_irq_install(struct drm_device *dev)
+{
+ int ret;
+ unsigned long sh_flags = 0;
+ char *irqname;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return -EINVAL;
+
+ if (drm_dev_to_irq(dev) == 0)
+ return -EINVAL;
+
+ mutex_lock(&dev->struct_mutex);
+
+ /* Driver must have been initialized */
+ if (!dev->dev_private) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ if (dev->irq_enabled) {
+ mutex_unlock(&dev->struct_mutex);
+ return -EBUSY;
+ }
+ dev->irq_enabled = 1;
+ mutex_unlock(&dev->struct_mutex);
+
+ DRM_DEBUG("irq=%d\n", drm_dev_to_irq(dev));
+
+ /* Before installing handler */
+ if (dev->driver->irq_preinstall)
+ dev->driver->irq_preinstall(dev);
+
+ /* Install handler */
+ if (drm_core_check_feature(dev, DRIVER_IRQ_SHARED))
+ sh_flags = IRQF_SHARED;
+
+ if (dev->devname)
+ irqname = dev->devname;
+ else
+ irqname = dev->driver->name;
+
+ ret = request_irq(drm_dev_to_irq(dev), dev->driver->irq_handler,
+ sh_flags, irqname, dev);
+
+ if (ret < 0) {
+ mutex_lock(&dev->struct_mutex);
+ dev->irq_enabled = 0;
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ vga_client_register(dev->pdev, (void *)dev, drm_irq_vgaarb_nokms, NULL);
+
+ /* After installing handler */
+ if (dev->driver->irq_postinstall)
+ ret = dev->driver->irq_postinstall(dev);
+
+ if (ret < 0) {
+ mutex_lock(&dev->struct_mutex);
+ dev->irq_enabled = 0;
+ mutex_unlock(&dev->struct_mutex);
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ vga_client_register(dev->pdev, NULL, NULL, NULL);
+ free_irq(drm_dev_to_irq(dev), dev);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_irq_install);
+
+/**
+ * Uninstall the IRQ handler.
+ *
+ * \param dev DRM device.
+ *
+ * Calls the driver's \c irq_uninstall() function, and stops the irq.
+ */
+int drm_irq_uninstall(struct drm_device *dev)
+{
+ unsigned long irqflags;
+ int irq_enabled, i;
+
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return -EINVAL;
+
+ mutex_lock(&dev->struct_mutex);
+ irq_enabled = dev->irq_enabled;
+ dev->irq_enabled = 0;
+ mutex_unlock(&dev->struct_mutex);
+
+ /*
+ * Wake up any waiters so they don't hang.
+ */
+ if (dev->num_crtcs) {
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ for (i = 0; i < dev->num_crtcs; i++) {
+ DRM_WAKEUP(&dev->vbl_queue[i]);
+ dev->vblank_enabled[i] = 0;
+ dev->last_vblank[i] =
+ dev->driver->get_vblank_counter(dev, i);
+ }
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+ }
+
+ if (!irq_enabled)
+ return -EINVAL;
+
+ DRM_DEBUG("irq=%d\n", drm_dev_to_irq(dev));
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ vga_client_register(dev->pdev, NULL, NULL, NULL);
+
+ if (dev->driver->irq_uninstall)
+ dev->driver->irq_uninstall(dev);
+
+ free_irq(drm_dev_to_irq(dev), dev);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_irq_uninstall);
+
+/**
+ * IRQ control ioctl.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_control structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls irq_install() or irq_uninstall() according to \p arg.
+ */
+int drm_control(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_control *ctl = data;
+
+ /* if we haven't irq we fallback for compatibility reasons -
+ * this used to be a separate function in drm_dma.h
+ */
+
+
+ switch (ctl->func) {
+ case DRM_INST_HANDLER:
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return 0;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return 0;
+ if (dev->if_version < DRM_IF_VERSION(1, 2) &&
+ ctl->irq != drm_dev_to_irq(dev))
+ return -EINVAL;
+ return drm_irq_install(dev);
+ case DRM_UNINST_HANDLER:
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return 0;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return 0;
+ return drm_irq_uninstall(dev);
+ default:
+ return -EINVAL;
+ }
+}
+
+/**
+ * drm_calc_timestamping_constants - Calculate and
+ * store various constants which are later needed by
+ * vblank and swap-completion timestamping, e.g, by
+ * drm_calc_vbltimestamp_from_scanoutpos().
+ * They are derived from crtc's true scanout timing,
+ * so they take things like panel scaling or other
+ * adjustments into account.
+ *
+ * @crtc drm_crtc whose timestamp constants should be updated.
+ *
+ */
+void drm_calc_timestamping_constants(struct drm_crtc *crtc)
+{
+ s64 linedur_ns = 0, pixeldur_ns = 0, framedur_ns = 0;
+ u64 dotclock;
+
+ /* Dot clock in Hz: */
+ dotclock = (u64) crtc->hwmode.clock * 1000;
+
+ /* Fields of interlaced scanout modes are only halve a frame duration.
+ * Double the dotclock to get halve the frame-/line-/pixelduration.
+ */
+ if (crtc->hwmode.flags & DRM_MODE_FLAG_INTERLACE)
+ dotclock *= 2;
+
+ /* Valid dotclock? */
+ if (dotclock > 0) {
+ /* Convert scanline length in pixels and video dot clock to
+ * line duration, frame duration and pixel duration in
+ * nanoseconds:
+ */
+ pixeldur_ns = (s64) div64_u64(1000000000, dotclock);
+ linedur_ns = (s64) div64_u64(((u64) crtc->hwmode.crtc_htotal *
+ 1000000000), dotclock);
+ framedur_ns = (s64) crtc->hwmode.crtc_vtotal * linedur_ns;
+ } else
+ DRM_ERROR("crtc %d: Can't calculate constants, dotclock = 0!\n",
+ crtc->base.id);
+
+ crtc->pixeldur_ns = pixeldur_ns;
+ crtc->linedur_ns = linedur_ns;
+ crtc->framedur_ns = framedur_ns;
+
+ DRM_DEBUG("crtc %d: hwmode: htotal %d, vtotal %d, vdisplay %d\n",
+ crtc->base.id, crtc->hwmode.crtc_htotal,
+ crtc->hwmode.crtc_vtotal, crtc->hwmode.crtc_vdisplay);
+ DRM_DEBUG("crtc %d: clock %d kHz framedur %d linedur %d, pixeldur %d\n",
+ crtc->base.id, (int) dotclock/1000, (int) framedur_ns,
+ (int) linedur_ns, (int) pixeldur_ns);
+}
+EXPORT_SYMBOL(drm_calc_timestamping_constants);
+
+/**
+ * drm_calc_vbltimestamp_from_scanoutpos - helper routine for kms
+ * drivers. Implements calculation of exact vblank timestamps from
+ * given drm_display_mode timings and current video scanout position
+ * of a crtc. This can be called from within get_vblank_timestamp()
+ * implementation of a kms driver to implement the actual timestamping.
+ *
+ * Should return timestamps conforming to the OML_sync_control OpenML
+ * extension specification. The timestamp corresponds to the end of
+ * the vblank interval, aka start of scanout of topmost-leftmost display
+ * pixel in the following video frame.
+ *
+ * Requires support for optional dev->driver->get_scanout_position()
+ * in kms driver, plus a bit of setup code to provide a drm_display_mode
+ * that corresponds to the true scanout timing.
+ *
+ * The current implementation only handles standard video modes. It
+ * returns as no operation if a doublescan or interlaced video mode is
+ * active. Higher level code is expected to handle this.
+ *
+ * @dev: DRM device.
+ * @crtc: Which crtc's vblank timestamp to retrieve.
+ * @max_error: Desired maximum allowable error in timestamps (nanosecs).
+ * On return contains true maximum error of timestamp.
+ * @vblank_time: Pointer to struct timeval which should receive the timestamp.
+ * @flags: Flags to pass to driver:
+ * 0 = Default.
+ * DRM_CALLED_FROM_VBLIRQ = If function is called from vbl irq handler.
+ * @refcrtc: drm_crtc* of crtc which defines scanout timing.
+ *
+ * Returns negative value on error, failure or if not supported in current
+ * video mode:
+ *
+ * -EINVAL - Invalid crtc.
+ * -EAGAIN - Temporary unavailable, e.g., called before initial modeset.
+ * -ENOTSUPP - Function not supported in current display mode.
+ * -EIO - Failed, e.g., due to failed scanout position query.
+ *
+ * Returns or'ed positive status flags on success:
+ *
+ * DRM_VBLANKTIME_SCANOUTPOS_METHOD - Signal this method used for timestamping.
+ * DRM_VBLANKTIME_INVBL - Timestamp taken while scanout was in vblank interval.
+ *
+ */
+int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, int crtc,
+ int *max_error,
+ struct timeval *vblank_time,
+ unsigned flags,
+ struct drm_crtc *refcrtc)
+{
+ struct timeval stime, raw_time;
+ struct drm_display_mode *mode;
+ int vbl_status, vtotal, vdisplay;
+ int vpos, hpos, i;
+ s64 framedur_ns, linedur_ns, pixeldur_ns, delta_ns, duration_ns;
+ bool invbl;
+
+ if (crtc < 0 || crtc >= dev->num_crtcs) {
+ DRM_ERROR("Invalid crtc %d\n", crtc);
+ return -EINVAL;
+ }
+
+ /* Scanout position query not supported? Should not happen. */
+ if (!dev->driver->get_scanout_position) {
+ DRM_ERROR("Called from driver w/o get_scanout_position()!?\n");
+ return -EIO;
+ }
+
+ mode = &refcrtc->hwmode;
+ vtotal = mode->crtc_vtotal;
+ vdisplay = mode->crtc_vdisplay;
+
+ /* Durations of frames, lines, pixels in nanoseconds. */
+ framedur_ns = refcrtc->framedur_ns;
+ linedur_ns = refcrtc->linedur_ns;
+ pixeldur_ns = refcrtc->pixeldur_ns;
+
+ /* If mode timing undefined, just return as no-op:
+ * Happens during initial modesetting of a crtc.
+ */
+ if (vtotal <= 0 || vdisplay <= 0 || framedur_ns == 0) {
+ DRM_DEBUG("crtc %d: Noop due to uninitialized mode.\n", crtc);
+ return -EAGAIN;
+ }
+
+ /* Get current scanout position with system timestamp.
+ * Repeat query up to DRM_TIMESTAMP_MAXRETRIES times
+ * if single query takes longer than max_error nanoseconds.
+ *
+ * This guarantees a tight bound on maximum error if
+ * code gets preempted or delayed for some reason.
+ */
+ for (i = 0; i < DRM_TIMESTAMP_MAXRETRIES; i++) {
+ /* Disable preemption to make it very likely to
+ * succeed in the first iteration even on PREEMPT_RT kernel.
+ */
+ preempt_disable();
+
+ /* Get system timestamp before query. */
+ do_gettimeofday(&stime);
+
+ /* Get vertical and horizontal scanout pos. vpos, hpos. */
+ vbl_status = dev->driver->get_scanout_position(dev, crtc, &vpos, &hpos);
+
+ /* Get system timestamp after query. */
+ do_gettimeofday(&raw_time);
+
+ preempt_enable();
+
+ /* Return as no-op if scanout query unsupported or failed. */
+ if (!(vbl_status & DRM_SCANOUTPOS_VALID)) {
+ DRM_DEBUG("crtc %d : scanoutpos query failed [%d].\n",
+ crtc, vbl_status);
+ return -EIO;
+ }
+
+ duration_ns = timeval_to_ns(&raw_time) - timeval_to_ns(&stime);
+
+ /* Accept result with < max_error nsecs timing uncertainty. */
+ if (duration_ns <= (s64) *max_error)
+ break;
+ }
+
+ /* Noisy system timing? */
+ if (i == DRM_TIMESTAMP_MAXRETRIES) {
+ DRM_DEBUG("crtc %d: Noisy timestamp %d us > %d us [%d reps].\n",
+ crtc, (int) duration_ns/1000, *max_error/1000, i);
+ }
+
+ /* Return upper bound of timestamp precision error. */
+ *max_error = (int) duration_ns;
+
+ /* Check if in vblank area:
+ * vpos is >=0 in video scanout area, but negative
+ * within vblank area, counting down the number of lines until
+ * start of scanout.
+ */
+ invbl = vbl_status & DRM_SCANOUTPOS_INVBL;
+
+ /* Convert scanout position into elapsed time at raw_time query
+ * since start of scanout at first display scanline. delta_ns
+ * can be negative if start of scanout hasn't happened yet.
+ */
+ delta_ns = (s64) vpos * linedur_ns + (s64) hpos * pixeldur_ns;
+
+ /* Is vpos outside nominal vblank area, but less than
+ * 1/100 of a frame height away from start of vblank?
+ * If so, assume this isn't a massively delayed vblank
+ * interrupt, but a vblank interrupt that fired a few
+ * microseconds before true start of vblank. Compensate
+ * by adding a full frame duration to the final timestamp.
+ * Happens, e.g., on ATI R500, R600.
+ *
+ * We only do this if DRM_CALLED_FROM_VBLIRQ.
+ */
+ if ((flags & DRM_CALLED_FROM_VBLIRQ) && !invbl &&
+ ((vdisplay - vpos) < vtotal / 100)) {
+ delta_ns = delta_ns - framedur_ns;
+
+ /* Signal this correction as "applied". */
+ vbl_status |= 0x8;
+ }
+
+ /* Subtract time delta from raw timestamp to get final
+ * vblank_time timestamp for end of vblank.
+ */
+ *vblank_time = ns_to_timeval(timeval_to_ns(&raw_time) - delta_ns);
+
+ DRM_DEBUG("crtc %d : v %d p(%d,%d)@ %ld.%ld -> %ld.%ld [e %d us, %d rep]\n",
+ crtc, (int)vbl_status, hpos, vpos,
+ (long)raw_time.tv_sec, (long)raw_time.tv_usec,
+ (long)vblank_time->tv_sec, (long)vblank_time->tv_usec,
+ (int)duration_ns/1000, i);
+
+ vbl_status = DRM_VBLANKTIME_SCANOUTPOS_METHOD;
+ if (invbl)
+ vbl_status |= DRM_VBLANKTIME_INVBL;
+
+ return vbl_status;
+}
+EXPORT_SYMBOL(drm_calc_vbltimestamp_from_scanoutpos);
+
+/**
+ * drm_get_last_vbltimestamp - retrieve raw timestamp for the most recent
+ * vblank interval.
+ *
+ * @dev: DRM device
+ * @crtc: which crtc's vblank timestamp to retrieve
+ * @tvblank: Pointer to target struct timeval which should receive the timestamp
+ * @flags: Flags to pass to driver:
+ * 0 = Default.
+ * DRM_CALLED_FROM_VBLIRQ = If function is called from vbl irq handler.
+ *
+ * Fetches the system timestamp corresponding to the time of the most recent
+ * vblank interval on specified crtc. May call into kms-driver to
+ * compute the timestamp with a high-precision GPU specific method.
+ *
+ * Returns zero if timestamp originates from uncorrected do_gettimeofday()
+ * call, i.e., it isn't very precisely locked to the true vblank.
+ *
+ * Returns non-zero if timestamp is considered to be very precise.
+ */
+u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
+ struct timeval *tvblank, unsigned flags)
+{
+ int ret;
+
+ /* Define requested maximum error on timestamps (nanoseconds). */
+ int max_error = (int) drm_timestamp_precision * 1000;
+
+ /* Query driver if possible and precision timestamping enabled. */
+ if (dev->driver->get_vblank_timestamp && (max_error > 0)) {
+ ret = dev->driver->get_vblank_timestamp(dev, crtc, &max_error,
+ tvblank, flags);
+ if (ret > 0)
+ return (u32) ret;
+ }
+
+ /* GPU high precision timestamp query unsupported or failed.
+ * Return gettimeofday timestamp as best estimate.
+ */
+ do_gettimeofday(tvblank);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_get_last_vbltimestamp);
+
+/**
+ * drm_vblank_count - retrieve "cooked" vblank counter value
+ * @dev: DRM device
+ * @crtc: which counter to retrieve
+ *
+ * Fetches the "cooked" vblank count value that represents the number of
+ * vblank events since the system was booted, including lost events due to
+ * modesetting activity.
+ */
+u32 drm_vblank_count(struct drm_device *dev, int crtc)
+{
+ return atomic_read(&dev->_vblank_count[crtc]);
+}
+EXPORT_SYMBOL(drm_vblank_count);
+
+/**
+ * drm_vblank_count_and_time - retrieve "cooked" vblank counter value
+ * and the system timestamp corresponding to that vblank counter value.
+ *
+ * @dev: DRM device
+ * @crtc: which counter to retrieve
+ * @vblanktime: Pointer to struct timeval to receive the vblank timestamp.
+ *
+ * Fetches the "cooked" vblank count value that represents the number of
+ * vblank events since the system was booted, including lost events due to
+ * modesetting activity. Returns corresponding system timestamp of the time
+ * of the vblank interval that corresponds to the current value vblank counter
+ * value.
+ */
+u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
+ struct timeval *vblanktime)
+{
+ u32 cur_vblank;
+
+ /* Read timestamp from slot of _vblank_time ringbuffer
+ * that corresponds to current vblank count. Retry if
+ * count has incremented during readout. This works like
+ * a seqlock.
+ */
+ do {
+ cur_vblank = atomic_read(&dev->_vblank_count[crtc]);
+ *vblanktime = vblanktimestamp(dev, crtc, cur_vblank);
+ smp_rmb();
+ } while (cur_vblank != atomic_read(&dev->_vblank_count[crtc]));
+
+ return cur_vblank;
+}
+EXPORT_SYMBOL(drm_vblank_count_and_time);
+
+/**
+ * drm_update_vblank_count - update the master vblank counter
+ * @dev: DRM device
+ * @crtc: counter to update
+ *
+ * Call back into the driver to update the appropriate vblank counter
+ * (specified by @crtc). Deal with wraparound, if it occurred, and
+ * update the last read value so we can deal with wraparound on the next
+ * call if necessary.
+ *
+ * Only necessary when going from off->on, to account for frames we
+ * didn't get an interrupt for.
+ *
+ * Note: caller must hold dev->vbl_lock since this reads & writes
+ * device vblank fields.
+ */
+static void drm_update_vblank_count(struct drm_device *dev, int crtc)
+{
+ u32 cur_vblank, diff, tslot, rc;
+ struct timeval t_vblank;
+
+ /*
+ * Interrupts were disabled prior to this call, so deal with counter
+ * wrap if needed.
+ * NOTE! It's possible we lost a full dev->max_vblank_count events
+ * here if the register is small or we had vblank interrupts off for
+ * a long time.
+ *
+ * We repeat the hardware vblank counter & timestamp query until
+ * we get consistent results. This to prevent races between gpu
+ * updating its hardware counter while we are retrieving the
+ * corresponding vblank timestamp.
+ */
+ do {
+ cur_vblank = dev->driver->get_vblank_counter(dev, crtc);
+ rc = drm_get_last_vbltimestamp(dev, crtc, &t_vblank, 0);
+ } while (cur_vblank != dev->driver->get_vblank_counter(dev, crtc));
+
+ /* Deal with counter wrap */
+ diff = cur_vblank - dev->last_vblank[crtc];
+ if (cur_vblank < dev->last_vblank[crtc]) {
+ diff += dev->max_vblank_count;
+
+ DRM_DEBUG("last_vblank[%d]=0x%x, cur_vblank=0x%x => diff=0x%x\n",
+ crtc, dev->last_vblank[crtc], cur_vblank, diff);
+ }
+
+ DRM_DEBUG("enabling vblank interrupts on crtc %d, missed %d\n",
+ crtc, diff);
+
+ /* Reinitialize corresponding vblank timestamp if high-precision query
+ * available. Skip this step if query unsupported or failed. Will
+ * reinitialize delayed at next vblank interrupt in that case.
+ */
+ if (rc) {
+ tslot = atomic_read(&dev->_vblank_count[crtc]) + diff;
+ vblanktimestamp(dev, crtc, tslot) = t_vblank;
+ }
+
+ smp_mb__before_atomic_inc();
+ atomic_add(diff, &dev->_vblank_count[crtc]);
+ smp_mb__after_atomic_inc();
+}
+
+/**
+ * drm_vblank_get - get a reference count on vblank events
+ * @dev: DRM device
+ * @crtc: which CRTC to own
+ *
+ * Acquire a reference count on vblank events to avoid having them disabled
+ * while in use.
+ *
+ * RETURNS
+ * Zero on success, nonzero on failure.
+ */
+int drm_vblank_get(struct drm_device *dev, int crtc)
+{
+ unsigned long irqflags, irqflags2;
+ int ret = 0;
+
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ /* Going from 0->1 means we have to enable interrupts again */
+ if (atomic_add_return(1, &dev->vblank_refcount[crtc]) == 1) {
+ spin_lock_irqsave(&dev->vblank_time_lock, irqflags2);
+ if (!dev->vblank_enabled[crtc]) {
+ /* Enable vblank irqs under vblank_time_lock protection.
+ * All vblank count & timestamp updates are held off
+ * until we are done reinitializing master counter and
+ * timestamps. Filtercode in drm_handle_vblank() will
+ * prevent double-accounting of same vblank interval.
+ */
+ ret = dev->driver->enable_vblank(dev, crtc);
+ DRM_DEBUG("enabling vblank on crtc %d, ret: %d\n",
+ crtc, ret);
+ if (ret)
+ atomic_dec(&dev->vblank_refcount[crtc]);
+ else {
+ dev->vblank_enabled[crtc] = 1;
+ drm_update_vblank_count(dev, crtc);
+ }
+ }
+ spin_unlock_irqrestore(&dev->vblank_time_lock, irqflags2);
+ } else {
+ if (!dev->vblank_enabled[crtc]) {
+ atomic_dec(&dev->vblank_refcount[crtc]);
+ ret = -EINVAL;
+ }
+ }
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_vblank_get);
+
+/**
+ * drm_vblank_put - give up ownership of vblank events
+ * @dev: DRM device
+ * @crtc: which counter to give up
+ *
+ * Release ownership of a given vblank counter, turning off interrupts
+ * if possible. Disable interrupts after drm_vblank_offdelay milliseconds.
+ */
+void drm_vblank_put(struct drm_device *dev, int crtc)
+{
+ BUG_ON(atomic_read(&dev->vblank_refcount[crtc]) == 0);
+
+ /* Last user schedules interrupt disable */
+ if (atomic_dec_and_test(&dev->vblank_refcount[crtc]) &&
+ (drm_vblank_offdelay > 0))
+ mod_timer(&dev->vblank_disable_timer,
+ jiffies + ((drm_vblank_offdelay * DRM_HZ)/1000));
+}
+EXPORT_SYMBOL(drm_vblank_put);
+
+void drm_vblank_off(struct drm_device *dev, int crtc)
+{
+ struct drm_pending_vblank_event *e, *t;
+ struct timeval now;
+ unsigned long irqflags;
+ unsigned int seq;
+
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ vblank_disable_and_save(dev, crtc);
+ DRM_WAKEUP(&dev->vbl_queue[crtc]);
+
+ /* Send any queued vblank events, lest the natives grow disquiet */
+ seq = drm_vblank_count_and_time(dev, crtc, &now);
+ list_for_each_entry_safe(e, t, &dev->vblank_event_list, base.link) {
+ if (e->pipe != crtc)
+ continue;
+ DRM_DEBUG("Sending premature vblank event on disable: \
+ wanted %d, current %d\n",
+ e->event.sequence, seq);
+
+ e->event.sequence = seq;
+ e->event.tv_sec = now.tv_sec;
+ e->event.tv_usec = now.tv_usec;
+ drm_vblank_put(dev, e->pipe);
+ list_move_tail(&e->base.link, &e->base.file_priv->event_list);
+ wake_up_interruptible(&e->base.file_priv->event_wait);
+ trace_drm_vblank_event_delivered(e->base.pid, e->pipe,
+ e->event.sequence);
+ }
+
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+}
+EXPORT_SYMBOL(drm_vblank_off);
+
+/**
+ * drm_vblank_pre_modeset - account for vblanks across mode sets
+ * @dev: DRM device
+ * @crtc: CRTC in question
+ *
+ * Account for vblank events across mode setting events, which will likely
+ * reset the hardware frame counter.
+ */
+void drm_vblank_pre_modeset(struct drm_device *dev, int crtc)
+{
+ /* vblank is not initialized (IRQ not installed ?) */
+ if (!dev->num_crtcs)
+ return;
+ /*
+ * To avoid all the problems that might happen if interrupts
+ * were enabled/disabled around or between these calls, we just
+ * have the kernel take a reference on the CRTC (just once though
+ * to avoid corrupting the count if multiple, mismatch calls occur),
+ * so that interrupts remain enabled in the interim.
+ */
+ if (!dev->vblank_inmodeset[crtc]) {
+ dev->vblank_inmodeset[crtc] = 0x1;
+ if (drm_vblank_get(dev, crtc) == 0)
+ dev->vblank_inmodeset[crtc] |= 0x2;
+ }
+}
+EXPORT_SYMBOL(drm_vblank_pre_modeset);
+
+void drm_vblank_post_modeset(struct drm_device *dev, int crtc)
+{
+ unsigned long irqflags;
+
+ if (dev->vblank_inmodeset[crtc]) {
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ dev->vblank_disable_allowed = 1;
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+
+ if (dev->vblank_inmodeset[crtc] & 0x2)
+ drm_vblank_put(dev, crtc);
+
+ dev->vblank_inmodeset[crtc] = 0;
+ }
+}
+EXPORT_SYMBOL(drm_vblank_post_modeset);
+
+/**
+ * drm_modeset_ctl - handle vblank event counter changes across mode switch
+ * @DRM_IOCTL_ARGS: standard ioctl arguments
+ *
+ * Applications should call the %_DRM_PRE_MODESET and %_DRM_POST_MODESET
+ * ioctls around modesetting so that any lost vblank events are accounted for.
+ *
+ * Generally the counter will reset across mode sets. If interrupts are
+ * enabled around this call, we don't have to do anything since the counter
+ * will have already been incremented.
+ */
+int drm_modeset_ctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_modeset_ctl *modeset = data;
+ unsigned int crtc;
+
+ /* If drm_vblank_init() hasn't been called yet, just no-op */
+ if (!dev->num_crtcs)
+ return 0;
+
+ /* KMS drivers handle this internally */
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return 0;
+
+ crtc = modeset->crtc;
+ if (crtc >= dev->num_crtcs)
+ return -EINVAL;
+
+ switch (modeset->cmd) {
+ case _DRM_PRE_MODESET:
+ drm_vblank_pre_modeset(dev, crtc);
+ break;
+ case _DRM_POST_MODESET:
+ drm_vblank_post_modeset(dev, crtc);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int drm_queue_vblank_event(struct drm_device *dev, int pipe,
+ union drm_wait_vblank *vblwait,
+ struct drm_file *file_priv)
+{
+ struct drm_pending_vblank_event *e;
+ struct timeval now;
+ unsigned long flags;
+ unsigned int seq;
+ int ret;
+
+ e = kzalloc(sizeof *e, GFP_KERNEL);
+ if (e == NULL) {
+ ret = -ENOMEM;
+ goto err_put;
+ }
+
+ e->pipe = pipe;
+ e->base.pid = current->pid;
+ e->event.base.type = DRM_EVENT_VBLANK;
+ e->event.base.length = sizeof e->event;
+ e->event.user_data = vblwait->request.signal;
+ e->base.event = &e->event.base;
+ e->base.file_priv = file_priv;
+ e->base.destroy = (void (*) (struct drm_pending_event *)) kfree;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ if (file_priv->event_space < sizeof e->event) {
+ ret = -EBUSY;
+ goto err_unlock;
+ }
+
+ file_priv->event_space -= sizeof e->event;
+ seq = drm_vblank_count_and_time(dev, pipe, &now);
+
+ if ((vblwait->request.type & _DRM_VBLANK_NEXTONMISS) &&
+ (seq - vblwait->request.sequence) <= (1 << 23)) {
+ vblwait->request.sequence = seq + 1;
+ vblwait->reply.sequence = vblwait->request.sequence;
+ }
+
+ DRM_DEBUG("event on vblank count %d, current %d, crtc %d\n",
+ vblwait->request.sequence, seq, pipe);
+
+ trace_drm_vblank_event_queued(current->pid, pipe,
+ vblwait->request.sequence);
+
+ e->event.sequence = vblwait->request.sequence;
+ if ((seq - vblwait->request.sequence) <= (1 << 23)) {
+ e->event.sequence = seq;
+ e->event.tv_sec = now.tv_sec;
+ e->event.tv_usec = now.tv_usec;
+ drm_vblank_put(dev, pipe);
+ list_add_tail(&e->base.link, &e->base.file_priv->event_list);
+ wake_up_interruptible(&e->base.file_priv->event_wait);
+ vblwait->reply.sequence = seq;
+ trace_drm_vblank_event_delivered(current->pid, pipe,
+ vblwait->request.sequence);
+ } else {
+ /* drm_handle_vblank_events will call drm_vblank_put */
+ list_add_tail(&e->base.link, &dev->vblank_event_list);
+ vblwait->reply.sequence = vblwait->request.sequence;
+ }
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ return 0;
+
+err_unlock:
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ kfree(e);
+err_put:
+ drm_vblank_put(dev, pipe);
+ return ret;
+}
+
+/**
+ * Wait for VBLANK.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param data user argument, pointing to a drm_wait_vblank structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * This function enables the vblank interrupt on the pipe requested, then
+ * sleeps waiting for the requested sequence number to occur, and drops
+ * the vblank interrupt refcount afterwards. (vblank irq disable follows that
+ * after a timeout with no further vblank waits scheduled).
+ */
+int drm_wait_vblank(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ union drm_wait_vblank *vblwait = data;
+ int ret;
+ unsigned int flags, seq, crtc, high_crtc;
+
+ if ((!drm_dev_to_irq(dev)) || (!dev->irq_enabled))
+ return -EINVAL;
+
+ if (vblwait->request.type & _DRM_VBLANK_SIGNAL)
+ return -EINVAL;
+
+ if (vblwait->request.type &
+ ~(_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK |
+ _DRM_VBLANK_HIGH_CRTC_MASK)) {
+ DRM_ERROR("Unsupported type value 0x%x, supported mask 0x%x\n",
+ vblwait->request.type,
+ (_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK |
+ _DRM_VBLANK_HIGH_CRTC_MASK));
+ return -EINVAL;
+ }
+
+ flags = vblwait->request.type & _DRM_VBLANK_FLAGS_MASK;
+ high_crtc = (vblwait->request.type & _DRM_VBLANK_HIGH_CRTC_MASK);
+ if (high_crtc)
+ crtc = high_crtc >> _DRM_VBLANK_HIGH_CRTC_SHIFT;
+ else
+ crtc = flags & _DRM_VBLANK_SECONDARY ? 1 : 0;
+ if (crtc >= dev->num_crtcs)
+ return -EINVAL;
+
+ ret = drm_vblank_get(dev, crtc);
+ if (ret) {
+ DRM_DEBUG("failed to acquire vblank counter, %d\n", ret);
+ return ret;
+ }
+ seq = drm_vblank_count(dev, crtc);
+
+ switch (vblwait->request.type & _DRM_VBLANK_TYPES_MASK) {
+ case _DRM_VBLANK_RELATIVE:
+ vblwait->request.sequence += seq;
+ vblwait->request.type &= ~_DRM_VBLANK_RELATIVE;
+ case _DRM_VBLANK_ABSOLUTE:
+ break;
+ default:
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if (flags & _DRM_VBLANK_EVENT) {
+ /* must hold on to the vblank ref until the event fires
+ * drm_vblank_put will be called asynchronously
+ */
+ return drm_queue_vblank_event(dev, crtc, vblwait, file_priv);
+ }
+
+ if ((flags & _DRM_VBLANK_NEXTONMISS) &&
+ (seq - vblwait->request.sequence) <= (1<<23)) {
+ vblwait->request.sequence = seq + 1;
+ }
+
+ DRM_DEBUG("waiting on vblank count %d, crtc %d\n",
+ vblwait->request.sequence, crtc);
+ dev->last_vblank_wait[crtc] = vblwait->request.sequence;