Commit Graph

589 Commits

Author SHA1 Message Date
ling.ma@intel.com
8ed9a5bc9c drm/i915: set TV detection mode when tv is already connected
We used load_detect_temp flag to determine whether to set tv to the test
mode. However if the TV already has a mode set, we still need to set the
test mode to determine connection.  This results in blinking, but there is
no other reliable way to determine TV connection.

freedesktop.org bug #22035

Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-22 20:27:47 -07:00
Krzysztof Halasa
921809a583 drm/i915: Catch up to obj_priv->page_list rename in disabled debug code.
Signed-off-by:  Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-22 20:19:39 -07:00
Krzysztof Halasa
cfd43c025d drm/i915: Fix size_t handling in off-by-default debug printfs
Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-22 20:19:19 -07:00
Zhao Yakui
aa0261f230 drm/i915: Don't change the blank/sync width when calculating scaled modes
Also, use the border instead of border minus one.

At the same time, make sure the horizontal border and hsync are even for
the LVDS that works in dual-channel mode. So both horizontal border and hsync
start are also changed to be even, even for the LVDS in single-channel mode.

https://bugs.freedesktop.org/show_bug.cgi?id=20951

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-22 19:35:08 -07:00
Zhao Yakui
3fbe18d65d drm/i915: Add support for changing LVDS panel fitting using an output property.
Previously the driver would always scale the chosen video mode to fill the
panel.  This adds 1:1 and maintain-aspect-ratio scaling modes.

v2: the drm_calloc/drm_free is replaced by kzalloc/kfree based
on Eric's suggestion.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-22 19:31:05 -07:00
Jesse Barnes
9e06dd39f2 drm/i915: correct suspend/resume ordering
We need to save register state *after* idling GEM, clearing the ring,
and uninstalling the IRQ handler, or we might end up saving bogus
fence regs, for one.  Our restore ordering should already be correct,
since we do GEM, ring and IRQ init after restoring the last register
state, which prevents us from clobbering things.

I put this together to potentially address a bug, but I haven't heard
back if it fixes it yet.  However I think it stands on its own, so I'm
sending it in.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-22 18:54:04 -07:00
Eric Anholt
be9f1c4f73 Merge commit 'keithp/drm-intel-next' into drm-intel-next 2009-06-21 22:33:15 -07:00
Eric Anholt
8c52da503b drm/i915: Add missing dependency on Intel AGP support.
Users could accidentally enable AGP but not the Intel AGP support, and get
a DRM that doesn't probe as a result.

Bug #22358.

Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-21 22:13:38 -07:00
Dave Airlie
95934f939c drm/i915: enable GEM on PAE.
In theory now that the AGP subsystem is using struct page, we should
have on problems enabling GEM on PAE systems.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 10:29:20 +10:00
Dave Airlie
fc436d9d37 drm/radeon: fix unused variables warning
just remove i variable left over from previous code.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 10:22:21 +10:00
Dave Airlie
07613ba2f4 agp: switch AGP to use page array instead of unsigned long array
This switches AGP to use an array of pages for tracking the
pages allocated to the GART. This should enable GEM on PAE to work
a lot better as we can pass highmem pages to the PAT code and it will
do the right thing with them.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 10:21:42 +10:00
Jerome Glisse
068a117ca3 drm/radeon: command stream checker for r3xx-r5xx hardware
For security purpose we want to make sure the userspace process doesn't
access memory beyond buffer it owns. To achieve this we need to check
states the userspace program. For color buffer and zbuffer we check that
the clipping register will discard access beyond buffers set as color
or zbuffer. For vertex buffer we check that no vertex fetch will happen
beyond buffer end. For texture we check various texture states (number
of mipmap level, texture size, texture depth, ...) to compute the amount
of memory the texture fetcher might access.

The command stream checking impact the performances so far quick benchmark
shows an average of 3% decrease in fps of various applications. It can
be optimized a bit more by caching result of checking and thus avoid a
full recheck if no states changed since last check.

Note that this patch is still incomplete on checking side as it doesn't
check 2d rendering states.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 09:32:27 +10:00
Michel Dänzer
8b5c744485 drm/radeon: Fully initialize LVDS info also when we can't get it from the ROM.
This makes the panel on my PowerBook light up.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 09:30:06 +10:00
Michel Dänzer
4e484e7dc5 radeon: Fix CP byte order on big endian architectures with KMS.
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 09:28:20 +10:00
Michel Dänzer
46f4b3eab7 drm/ttm: Add some powerpc cache flush code.
Optimise the powerpc flushing path for TTM.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 09:24:53 +10:00
Michel Dänzer
919f32f1df radeon: Enable modesetting on non-x86.
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 09:23:44 +10:00
Michel Dänzer
55c93278ec drm/radeon: Respect AGP cant_use_aperture flag.
Some AGP devices can't map the aperture, radeon needs to tell TTM this.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 09:23:03 +10:00
Michel Dänzer
0454beab0f drm: EDID endianness fixes.
Mostly replacing bitfields with explicit masks and shifts.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 09:11:13 +10:00
Dave Airlie
00fa28ae29 drm/radeon: this VRAM vs aperture test is wrong, just remove it.
Its quite valid to have VRAM < aperture size.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 09:03:48 +10:00
Thomas Hellstrom
87ef92092f drm/ttm: fix an error path to exit function correctly
Just a goto instead of a direct exit.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 09:01:49 +10:00
Thomas Hellstrom
89579f7782 drm: Apply "Memory fragmentation from lost alignment blocks"
also for the atomic path by using a common code-path.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 09:01:12 +10:00
Thomas Hellstrom
78ecf091aa ttm: Return -ERESTART when a signal interrupts bo eviction.
A bug caused the ttm code to just terminate the wait when a signal
was received while waiting for the GPU to release a buffer object that
was to be evicted.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-19 09:01:02 +10:00
Keith Packard
fb0f8fbf97 drm/i915: Generate 2MHz clock for display port aux channel I/O. Retry I/O.
The display port aux channel clock is taken from the hrawclk value, which is
provided to the chip as the FSB frequency (as far as I can determine). The
strapping values for that are available in the CLKCFG register, now used to
select an appropriate divider to generate a 2MHz clock.

In addition, the DisplayPort spec requires that each aux channel I/O be
retried 'at least 3 times' in case the sink is idle when the first request
comes in.

Signed-off-by: Keith Packard <keithp@keithp.com>
2009-06-18 15:54:14 -07:00
Keith Packard
a5b3da543d drm/i915: Clarify error returns from display port aux channel I/O
Use distinct error return values for each kind of aux channel I/O failure.

Signed-off-by: Keith Packard <keithp@keithp.com>
2009-06-18 15:54:12 -07:00
Keith Packard
b11248df4c drm/i915: Add CLKCFG register definition
The CLKCFG register holds information about the GMCH plls and input clock
values.

Signed-off-by: Keith Packard <keithp@keithp.com>
2009-06-18 15:54:11 -07:00
Keith Packard
e4b366996b drm/i915: Split array of DAC limits into separate structures.
The array of DAC limits was only ever referenced with #defined constant
offsets, and keeping those #define values in sync with the array itself was a
nuisance. This will make future changes to the set of DAC limits less
error-prone.

Signed-off-by: Keith Packard <keithp@keithp.com>
2009-06-18 15:54:10 -07:00
Keith Packard
c8110e52b7 drm/i915: Use hotplug callback to retrain DP link
When a DP monitor is plugged back in, it needs to be retrained if it was
active before.

Signed-off-by: Keith Packard <keithp@keithp.com>
2009-06-18 15:54:08 -07:00
Keith Packard
a4fc5ed698 drm/i915: Add Display Port support
Signed-off-by: Keith Packard <keithp@keithp.com>
2009-06-18 15:54:07 -07:00
Keith Packard
c31c4ba343 drm/i915: add per-output hotplug callback for KMS
This allows each output to deal with plug/unplug events as needed.

Signed-off-by: Keith Packard <keithp@keithp.com>
2009-06-18 15:54:06 -07:00
Keith Packard
308cd3a2e5 drm/i915: Clean up SDVO i2c handling
Eliminate the copy of i2c_bus in sdvo_priv.
Eliminate local copies of i2c_bus and ddcbus.
Eliminate unused settings of slave_addr.

Signed-off-by: Keith Packard <keithp@keithp.com>
2009-06-18 15:54:04 -07:00
Keith Packard
f9c10a9b96 drm/i915: Change I2C api to pass around i2c_adapters
The existing API passed around intel_i2c_chan pointers, which are dependent
on the i2c bit-banging algo. This precluded the driver from using outputs
which use a different algo. Switching to the more general i2c_adpater allows
the driver to support non bit-banging DDC.

This also required moving the slave address into the output private
structures.

Signed-off-by: Keith Packard <keithp@keithp.com>
2009-06-18 15:53:57 -07:00
Keith Packard
b99e228d35 drm/i915: check for CONFIG_PNP before using pnp function
Signed-off-by: Keith Packard <keithp@keithp.com>
2009-06-18 14:59:11 -07:00
Keith Packard
98acd46f35 drm/i915: Apple DMI info has inconsistent SYS_VENDOR information
Some machines say 'Apple Inc.' while others say 'Apple Computer, Inc'.
Switch the test to just look for 'Apple' instead.

Signed-off-by: Keith Packard <keithp@keithp.com>
2009-06-18 14:59:10 -07:00
Keith Packard
aa93d632c4 drm/i915: Require digital monitor on HDMI ports for detect
HDMI and DVI both require DDC/EDID on monitors, so use
that to know when a monitor is connected as the hot-plug
pins are shared with SDVO and DisplayPort

Signed-off-by: Keith Packard <keithp@keithp.com>
2009-06-18 14:59:01 -07:00
Eric Anholt
9a298b2acd drm: Remove memory debugging infrastructure.
It hasn't been used in ages, and having the user tell your how much
memory is being freed at free time is a recipe for disaster even if it
was ever used.

Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-18 13:00:33 -07:00
Chris Wilson
52dc7d32b8 drm/i915: Clear fence register on tiling stride change.
The fence register value also depends upon the stride of the object, so we
need to clear the fence if that is changed as well.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[anholt: Added 8xx and 965 paths, and renamed the confusing
i915_gem_object_tiling_ok function to i915_gem_object_fence_offset_ok]
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-18 12:40:50 -07:00
Chris Wilson
8c4b8c3f34 drm/i915: Install fence register for tiled scanout on i915
With the work by Jesse Barnes to eliminate allocation of fences during
execbuffer, it becomes possible to write to the scan-out buffer with it
never acquiring a fence (simply by only ever writing to the object using
tiled GPU commands and never writing to it via the GTT). So for pre-i965
chipsets which require fenced access for tiled scan-out buffers, we need
to obtain a fence register.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-18 11:47:04 -07:00
Chris Wilson
d78b47b9a5 drm/i915: detach/attach get/put pages symmetry
After performing an operation over the page list for a buffer retrieved by
i915_gem_object_get_pages() the pages need to be returned with
i915_gem_object_put_pages(). This was not being observed for the phys
objects which were thus leaking references to their backing pages.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
CC: Dave Airlie <airlied@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-17 15:26:24 -07:00
Ben Gamari
76cff81ad1 drm/i915: A few debugfs formatting fixes
Signed-Off-By: Ben Gamari <bgamari.foss@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-17 14:32:20 -07:00
Ben Gamari
049b77cb2a drm/i915: Warn when inteldrmfb fails to restore its framebuffer config
While sifting through the inteldrmfb code trying to solve #22040 I found that
the fb restore path doesn't check the return value of
drm_crtc_helper_set_config(), which seems to have all sorts of potential
failure modes. We should warn someone if one of these is triggered.

Signed-Off-By: Ben Gamari <bgamari.foss@gmail.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[anholt: hand-applied, failures are mine]
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-17 14:22:47 -07:00
Dave Airlie
3b47883d93 drm/radeon/kms: remove the _DRM_DRIVER from the KMS paths.
This causes an issue since we fixed the drm mappings to do the right thing,
so its just a copy and pasto.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-17 09:45:46 -07:00
Linus Torvalds
8d15b0ec32 Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon: switch to using late_initcall
  radeon legacy chips: tv dac bg/dac adj updates
  drm/radeon: introduce kernel modesetting for radeon hardware
  drm: Add the TTM GPU memory manager subsystem.
  drm: Memory fragmentation from lost alignment blocks
  drm/radeon: fix mobility flags on new PCI IDs.
2009-06-16 21:20:39 -07:00
Linus Torvalds
517d08699b Merge branch 'akpm'
* akpm: (182 commits)
  fbdev: bf54x-lq043fb: use kzalloc over kmalloc/memset
  fbdev: *bfin*: fix __dev{init,exit} markings
  fbdev: *bfin*: drop unnecessary calls to memset
  fbdev: bfin-t350mcqb-fb: drop unused local variables
  fbdev: blackfin has __raw I/O accessors, so use them in fb.h
  fbdev: s1d13xxxfb: add accelerated bitblt functions
  tcx: use standard fields for framebuffer physical address and length
  fbdev: add support for handoff from firmware to hw framebuffers
  intelfb: fix a bug when changing video timing
  fbdev: use framebuffer_release() for freeing fb_info structures
  radeon: P2G2CLK_ALWAYS_ONb tested twice, should 2nd be P2G2CLK_DAC_ALWAYS_ONb?
  s3c-fb: CPUFREQ frequency scaling support
  s3c-fb: fix resource releasing on error during probing
  carminefb: fix possible access beyond end of carmine_modedb[]
  acornfb: remove fb_mmap function
  mb862xxfb: use CONFIG_OF instead of CONFIG_PPC_OF
  mb862xxfb: restrict compliation of platform driver to PPC
  Samsung SoC Framebuffer driver: add Alpha Channel support
  atmel-lcdc: fix pixclock upper bound detection
  offb: use framebuffer_alloc() to allocate fb_info struct
  ...

Manually fix up conflicts due to kmemcheck in mm/slab.c
2009-06-16 19:50:13 -07:00
Dave Airlie
4410f39109 fbdev: add support for handoff from firmware to hw framebuffers
With KMS we have ran into an issue where we really want the KMS fb driver
to be the one running the console, so panics etc can be shown by switching
out of X etc.

However with vesafb/efifb built-in, we end up with those on fb0 and the
KMS fb driver on fb1, driving the same piece of hw, so this adds an fb
info flag to denote a firmware fbdev, and adds a new aperture base/size
range which can be compared when the hw drivers are installed to see if
there is a conflict with a firmware driver, and if there is the firmware
driver is unregistered and the hw driver takes over.

It uses new aperture_base/size members instead of comparing on the fix
smem_start/length, as smem_start/length might for example only cover the
first 1MB of the PCI aperture, and we could allocate the kms fb from 8MB
into the aperture, thus they would never overlap.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Dave Airlie <airlied@redhat.com>
Acked-by: Peter Jones <pjones@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-16 19:48:00 -07:00
Dave Airlie
cc8da5263f drm/radeon: switch to using late_initcall
This fixes an issue where we get inited before fbcon when built-in.

Ideally this should work as a non late_initcall, but this fixes it for now.
We also don't suggest people build this in (at least distro maintainers).

Reported-by: Ryan Hope <rmh3093@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-17 07:44:04 +10:00
GeunSik Lim
156f5a7801 debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.
Many developers use "/debug/" or "/debugfs/" or "/sys/kernel/debug/"
directory name to mount debugfs filesystem for ftrace according to
./Documentation/tracers/ftrace.txt file.

And, three directory names(ex:/debug/, /debugfs/, /sys/kernel/debug/) is
existed in kernel source like ftrace, DRM, Wireless, Documentation,
Network[sky2]files to mount debugfs filesystem.

debugfs means debug filesystem for debugging easy to use by greg kroah
hartman. "/sys/kernel/debug/" name is suitable as directory name
of debugfs filesystem.
- debugfs related reference: http://lwn.net/Articles/334546/

Fix inconsistency of directory name to mount debugfs filesystem.

* From Steven Rostedt
  - find_debugfs() and tracing_files() in this patch.

Signed-off-by: GeunSik Lim <geunsik.lim@samsung.com>
Acked-by     : Inaky Perez-Gonzalez <inaky@linux.intel.com>
Reviewed-by  : Steven Rostedt <rostedt@goodmis.org>
Reviewed-by  : James Smart <james.smart@emulex.com>
CC: Jiri Kosina <trivial@kernel.org>
CC: David Airlie <airlied@linux.ie>
CC: Peter Osterlund <petero2@telia.com>
CC: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
CC: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
CC: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:30:28 -07:00
Kay Sievers
02200d0664 Driver Core: drm: add nodename for drm devices
This adds support to the drm core to report the proper device name to
userspace for the drm devices.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:30:26 -07:00
Alex Deucher
6fe7ac3f5b radeon legacy chips: tv dac bg/dac adj updates
COMBIOS - fallback to table values if there are no tv dac or lvds bios tables
ATOMBIOS - add support for looking up these values from the bios table

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-15 12:02:27 +10:00
Jerome Glisse
771fe6b912 drm/radeon: introduce kernel modesetting for radeon hardware
Add kernel modesetting support to radeon driver, use the ttm memory
manager to manage memory and DRM/GEM to provide userspace API.
In order to avoid backward compatibility issue and to allow clean
design and code the radeon kernel modesetting use different code path
than old radeon/drm driver.

When kernel modesetting is enabled the IOCTL of radeon/drm
driver are considered as invalid and an error message is printed
in the log and they return failure.

KMS enabled userspace will use new API to talk with the radeon/drm
driver. The new API provide functions to create/destroy/share/mmap
buffer object which are then managed by the kernel memory manager
(here TTM). In order to submit command to the GPU the userspace
provide a buffer holding the command stream, along this buffer
userspace have to provide a list of buffer object used by the
command stream. The kernel radeon driver will then place buffer
in GPU accessible memory and will update command stream to reflect
the position of the different buffers.

The kernel will also perform security check on command stream
provided by the user, we want to catch and forbid any illegal use
of the GPU such as DMA into random system memory or into memory
not owned by the process supplying the command stream. This part
of the code is still incomplete and this why we propose that patch
as a staging driver addition, future security might forbid current
experimental userspace to run.

This code support the following hardware : R1XX,R2XX,R3XX,R4XX,R5XX
(radeon up to X1950). Works is underway to provide support for R6XX,
R7XX and newer hardware (radeon from HD2XXX to HD4XXX).

Authors:
    Jerome Glisse <jglisse@redhat.com>
    Dave Airlie <airlied@redhat.com>
    Alex Deucher <alexdeucher@gmail.com>

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-15 12:01:53 +10:00
Thomas Hellstrom
ba4e7d973d drm: Add the TTM GPU memory manager subsystem.
TTM is a GPU memory manager subsystem designed for use with GPU
devices with various memory types (On-card VRAM, AGP,
PCI apertures etc.). It's essentially a helper library that assists
the DRM driver in creating and managing persistent buffer objects.

TTM manages placement of data and CPU map setup and teardown on
data movement. It can also optionally manage synchronization of
data on a per-buffer-object level.

TTM takes care to provide an always valid virtual user-space address
to a buffer object which makes user-space sub-allocation of
big buffer objects feasible.

TTM uses a fine-grained per buffer-object locking scheme, taking
care to release all relevant locks when waiting for the GPU.
Although this implies some locking overhead, it's probably a big
win for devices with multiple command submission mechanisms, since
the lock contention will be minimal.

TTM can be used with whatever user-space interface the driver
chooses, including GEM. It's used by the upcoming Radeon KMS DRM driver
and is also the GPU memory management core of various new experimental
DRM drivers.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-15 09:37:57 +10:00
Chris Wilson
e6c03c5b40 drm: Memory fragmentation from lost alignment blocks
If the block needs an alignment but otherwise fits exactly into the tail,
then the split-off block from the start would remain marked as non-free.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-15 09:35:33 +10:00
Linus Torvalds
6b702462cb Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (50 commits)
  drm: include kernel list header file in hashtab header
  drm: Export hash table functionality.
  drm: Split out the mm declarations in a separate header. Add atomic operations.
  drm/radeon: add support for RV790.
  drm/radeon: add rv740 drm support.
  drm_calloc_large: check right size, check integer overflow, use GFP_ZERO
  drm: Eliminate magic I2C frobbing when reading EDID
  drm/i915: duplicate desired mode for use by fbcon.
  drm/via: vfree() no need checking before calling it
  drm: Replace DRM_DEBUG with DRM_DEBUG_DRIVER in i915 driver
  drm: Replace DRM_DEBUG with DRM_DEBUG_MODE in drm_mode
  drm/i915: Replace DRM_DEBUG with DRM_DEBUG_KMS in intel_sdvo
  drm/i915: replace DRM_DEBUG with DRM_DEBUG_KMS in intel_lvds
  drm: add separate drm debugging levels
  radeon: remove _DRM_DRIVER from the preadded sarea map
  drm: don't associate _DRM_DRIVER maps with a master
  drm: simplify kcalloc() call to kzalloc().
  intelfb: fix spelling of "CLOCK"
  drm: fix LOCK_TEST_WITH_RETURN macro
  drm/i915: Hook connector to encoder during load detection (fixes tv/vga detect)
  ...
2009-06-12 18:09:18 -07:00
Jerome Glisse
f2cb5d86e1 drm: Export hash table functionality.
add exports so TTM module can use these functions.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-12 15:56:33 +10:00
Jerome Glisse
249d6048ca drm: Split out the mm declarations in a separate header. Add atomic operations.
this is a TTM preparation patch, it rearranges the mm and
add operations needed to do mm operations in atomic context.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-12 15:56:31 +10:00
Alex Deucher
715cbb05c9 drm/radeon: add support for RV790.
This adds the PCI IDs for the rv790 which are equiv to the rv770.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-12 15:56:30 +10:00
Alex Deucher
2a71ebcd85 drm/radeon: add rv740 drm support.
This adds drm support for the RV740 family of chips to the r600 support code.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-12 15:56:28 +10:00
Keith Packard
61f11699e7 drm: Eliminate magic I2C frobbing when reading EDID
This code depends on the underlying I2C adapter using the bit-banging algo,
which may not be the case. If specific encoders require this mechanism, they
should build a custom I2C algo that implements this workaround, rather than
having it in the general path.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-12 15:37:27 +10:00
Dave Airlie
7ff145593d drm/i915: duplicate desired mode for use by fbcon.
duplicate the mode into fbcon storage, so when we free modes later
we don't just lose this.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-12 15:00:01 +10:00
Figo.zhang
c5c07550d4 drm/via: vfree() no need checking before calling it
vfree() does it's own NULL checking, no need for explicit check before
calling it.

Signed-off-by: Figo.zhang <figo1802@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-12 14:59:59 +10:00
yakui_zhao
be25ed9c5c drm: Replace DRM_DEBUG with DRM_DEBUG_DRIVER in i915 driver
Replace the DRM_DEBUG with the DRM_DEBUG_DRIVER to print the debug info
in i915 driver.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-12 14:59:58 +10:00
yakui_zhao
f053185948 drm: Replace DRM_DEBUG with DRM_DEBUG_MODE in drm_mode
Replace the DRM_DEBUG with DRM_DEBUG_MODE macro to print the info in drm_mode.

airlied:- fixed up to remove a conflicting #define
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-12 14:59:42 +10:00
yakui_zhao
342dc382c4 drm/i915: Replace DRM_DEBUG with DRM_DEBUG_KMS in intel_sdvo
Use the DRM_DEBUG_KMS/DEBUG_LOG_KMS to print the debug info for
SDVO device.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-11 18:40:44 +10:00
yakui_zhao
7fb85bfb54 drm/i915: replace DRM_DEBUG with DRM_DEBUG_KMS in intel_lvds
Use the DRM_DEBUG_KMS macro definition to print the debug info for
the LVDS.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-11 18:40:36 +10:00
yakui_zhao
4fefcb2705 drm: add separate drm debugging levels
Now all the DRM debug info will be reported if the boot option of
"drm.debug=1" is added. Sometimes it is inconvenient to get the debug
info in KMS mode. We will get too much unrelated info.

This will separate several DRM debug levels and the debug level can be used
to print the different debug info. And the debug level is controlled by the
module parameter of drm.debug

In this patch it is divided into four debug levels;
       	drm_core, drm_driver, drm_kms, drm_mode.

At the same time we can get the different debug info by changing the debug
level. This can be done by adding the module parameter. Of course it can
be changed through the /sys/module/drm/parameters/debug after the system is
booted.

Four debug macro definitions are provided.
	DRM_DEBUG(fmt, args...)
	DRM_DEBUG_DRIVER(prefix, fmt, args...)
	DRM_DEBUG_KMS(prefix, fmt, args...)
	DRM_DEBUG_MODE(prefix, fmt, args...)

When the boot option of "drm.debug=4" is added, it will print the debug info
using DRM_DEBUG_KMS macro definition.
When the boot option of "drm.debug=6" is added, it will print the debug info
using DRM_DEBUG_KMS/DRM_DEBUG_DRIVER.

Sometimes we expect to print the value of an array.
For example: SDVO command,
In such case the following four DRM debug macro definitions are added:
	DRM_LOG(fmt, args...)
	DRM_LOG_DRIVER(fmt, args...)
	DRM_LOG_KMS(fmt, args...)
	DRM_LOG_MODE(fmt, args...)

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-11 18:36:36 +10:00
Dave Airlie
df4f7fe7bd radeon: remove _DRM_DRIVER from the preadded sarea map
This shouldn't be there and is what broke r600 late in the 2.6.30
release cycle with Ben's patch.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-11 16:16:10 +10:00
Ben Skeggs
2ff2e8a3e1 drm: don't associate _DRM_DRIVER maps with a master
A driver will use the _DRM_DRIVER map flag to indicate that it wants
to be responsible for removing the map itself, bypassing the DRM's
automagic cleanup code.

Since the multi-master changes this has been broken, resulting in some
drivers having their registers unmapped before it's finished with them.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-11 16:15:29 +10:00
Robert P. J. Day
b798b1fe3b drm: simplify kcalloc() call to kzalloc().
Calls to kcalloc() for a single element can be simplified to calls to
kzalloc().

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Cc: Dave Airlie <airlied@linux.ie>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-11 16:10:30 +10:00
Pavel Roskin
1bcbf39488 intelfb: fix spelling of "CLOCK"
Signed-off-by: Pavel Roskin <proski@gnu.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-11 16:10:29 +10:00
Keith Packard
03d6069912 drm/i915: Hook connector to encoder during load detection (fixes tv/vga detect)
With the DRM-driven DPMS code, encoders are considered idle unless a
connector is hooked to them, so mode setting is skipped. This makes load
detection fail as none of the hardware is enabled.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 15:20:55 -07:00
Chris Wilson
2939e1f533 drm/i915: NOMEM->NOSPC
To differentiate between encountering an out-of-memory error with running
out of space in the aperture, use ENOSPC for the later.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 14:51:39 -07:00
Chris Wilson
21d509e339 drm/i915: use I915_GEM_GPU_DOMAINS
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 14:51:18 -07:00
Chris Wilson
b1ce786cb8 drm/i915: no need to hold mutex for object lookup
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 14:41:37 -07:00
Chris Wilson
1f803ee5ce drm/i915: Call drm_vblank_post_modeset() on error paths.
Ensure that the drm_vblank_pre_modeset() is always balanced by
drm_vblank_post_modeset() within intel_crtc_mode_set().

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 14:41:26 -07:00
Chris Wilson
5f26a2c7ad drm/i915: OR in the COMMAND read domain for the batch buffer.
The batch buffer may be shared with another read buffer, so we should not
ignore any previously set domains, but just or in the command domain (and
check that the buffer is not writable).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 13:54:05 -07:00
Chris Wilson
83d6079515 drm/i915: Sanity check execbuffer arguments before touching state.
By sending a broken execbuffer (its length was not suitably aligned) I
triggered an operation upon a freed object. The invalid alignment was
discovered after updating the write_domain on the object but before the
object was placed on the active queue. So during the unwind process
following the error, the now freed object attempts to flush its
non-existent, but outstanding, GPU writes causing this use-after-free.

[drm:i915_dispatch_gem_execbuffer] *ERROR* alignment
[drm:i915_gem_execbuffer] *ERROR* dispatch failed -22
WARNING: at lib/kref.c:43 warn_slowpath_null+0x10/0x15()
Modules linked in:
Pid: 4552, comm: lt-csi-drm Not tainted 2.6.30-rc6 #423
Call Trace:
 [<c0119ef3>] warn_slowpath_fmt+0x57/0x6d
 [<c014de24>] ? get_pageblock_migratetype+0x18/0x1e
 [<c014e8fd>] ? free_hot_page+0xa/0xc
 [<c014e915>] ? __free_pages+0x16/0x1f
 [<c0153ebf>] ? shmem_truncate_range+0x63e/0x656
 [<c015fb2f>] ? slob_page_alloc+0x146/0x1c8
 [<c0119f19>] warn_slowpath_null+0x10/0x15
 [<c01f55f2>] kref_get+0x1b/0x21
 [<c02605db>] i915_gem_object_move_to_active+0x1f/0x56
 [<c0261302>] i915_add_request+0x156/0x19a
 [<c026136e>] i915_gem_object_flush_gpu_write_domain+0x28/0x3f
 [<c0261eca>] i915_gem_object_unbind+0x4a/0x124
 [<c0261fd7>] i915_gem_free_object+0x33/0x9b
 [<c0250d6b>] drm_gem_object_free+0x28/0x4a
 [<c0250d43>] ? drm_gem_object_free+0x0/0x4a
 [<c01f55ce>] kref_put+0x38/0x41
 [<c0250cbf>] drm_gem_object_unreference+0x11/0x13
 [<c0250d06>] drm_gem_object_handle_unreference+0x1e/0x21
 [<c0250d13>] drm_gem_object_release_handle+0xa/0xe
 [<c01f3e6b>] idr_for_each+0x5f/0x98
 [<c0250d09>] ? drm_gem_object_release_handle+0x0/0xe
 [<c0250daf>] drm_gem_release+0x22/0x34
 [<c025046f>] drm_release+0x1e8/0x3c4
 [<c0162d25>] __fput+0xaf/0x146
 [<c0162dce>] fput+0x12/0x14
 [<c01605ef>] filp_close+0x48/0x52
 [<c011b182>] put_files_struct+0x57/0x9b
 [<c011b1e4>] exit_files+0x1e/0x20
 [<c011c6b6>] do_exit+0x16d/0x511
 [<c03704ab>] ? __schedule+0x3d4/0x3e5
 [<c0103f0d>] ? handle_irq+0xd/0x69
 [<c011caa7>] do_group_exit+0x4d/0x73
 [<c011cae0>] sys_exit_group+0x13/0x17
 [<c010268c>] sysenter_do_call+0x12/0x2b

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 13:52:57 -07:00
Michael Cousin
fa0864b26b drm/i915: Skip lvds with Aopen i945GTt-VFA
Signed-off-by: Michael Cousin <mika.cousin@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 11:56:12 -07:00
Zhenyu Wang
036a4a7d92 drm/i915: handle interrupt on new chipset
Update interrupt handling methods for IGDNG with new registers
for display and graphics interrupt functions. As we won't use
irq-based vblank sync in dri2, so display interrupt on new chip
will be used for hotplug only in future.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 11:15:27 -07:00
Jesse Barnes
d765898970 drm/i915: enable MCHBAR if needed
Using the new PNP resource checking code, this patch allows the i915
driver to allocate MCHBAR space if needed and use the BAR to determine
current memory settings.

[apw@canonical.com: moved to the new generic PNP resource interface]
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Eric Anholt <eric@anholt.net>

failure to update-index after git-am --reject to hand-apply

Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09 11:15:07 -07:00
Linus Torvalds
27704a16c9 Revert "drm: don't associate _DRM_DRIVER maps with a master"
This reverts commit 6c51d1cfa0, which
apparently causes DRI initialization failures on Radeons.

Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Requested-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-05 10:21:52 -07:00
Jesse Barnes
b66d18ddb1 drm/i915: avoid non-atomic sysrq execution
The sysrq functions are executed in hardirq context, so we shouldn't be
calling sleeping functions from them, like mutex_locks or memory
allocations.

Fix up the i915 sysrq handler to avoid this.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 14:22:33 +00:00
Jesse Barnes
42c2798b35 drm/i915: apply G45 vblank count code to all G4x chips and fix max_frame_count
All G4x and newer chips use the new style frame count register, with a
full 32 bit frame count.  Update the code to reflect this.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 14:22:31 +00:00
Jarod Wilson
70aa96ca2d drm/i915: add ignore lvds quirk info for AOpen Mini PC
Fix a FIXME in the intel LVDS bring-up code, adding the appropriate
blacklist entry for the AOpen Mini PC, courtesy of a dmidecode
dump from Florian Demmer.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
CC: Florian Demmer <florian@demmer.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 14:22:30 +00:00
yakui_zhao
714605e4a0 drm/i915: Initialize the SDVO device based on the sdvo info parsed from VBT
http://bugs.freedesktop.org/show_bug.cgi?id=20429

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
[anholt: Massive cleanup of the slave addr function]
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 14:22:19 +00:00
yakui_zhao
9b9d172d06 drm/i915: parse VBT general definition block to get the SDVO device info
The general definition block contains the child device tables, which include
the SDVO device info. For example: device slave address, device dvo port,
device type.

We will get the info of SDVO device by parsing the general definition blocks.
Only when a valid slave address is found, it is regarded as the SDVO device.
And the info of DVO port and slave address is recorded.

http://bugs.freedesktop.org/show_bug.cgi?id=20429

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 14:13:05 +00:00
yakui_zhao
59a036cfbd drm/i915: Add the structure of child_device_config in video BIOS tables.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 14:13:02 +00:00
Keith Packard
040d87f15a drm/i915: Add Display Port register defines
This adds the register definitions for the display port enable register
along with those for the GMCH and Link M/N ratios required to drive display
port outputs.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 14:12:59 +00:00
Keith Packard
2245fda810 drm/i915: Don't trim cursor addresses to 11 bits
We can safely assume that cursor addresses will not extend beyond the
addressable screen dimensions; setting the additional bits is harmless in
any case.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 13:09:04 +00:00
Ma Ling
cb66c692d1 drm/i915: Set correct TV detection voltage level override values
We detect TV connect status by setting DAC voltage level override
values as 0.7 voltage for DAC_A/B/C. The corresponding 2-bits shold be 0x2,
In order correctly to set last bit as 0, at first we must clean it.

It fixed freedesktop.org bug #21204

Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 12:53:26 +00:00
Zhenyu Wang
541998a18b drm/i915: Add LVDS support for IGDNG
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 11:35:49 +00:00
Zhenyu Wang
30ad48b733 drm/i915: Add HDMI support on IGDNG
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 11:35:17 +00:00
Zhenyu Wang
2c07245fb8 drm/i915: enable kernel modesetting on IGDNG
This adds kernel mode setting on IGDNG with VGA output support.
Note that suspend/resume doesn't work yet.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 11:34:51 +00:00
Zhenyu Wang
2cce0d8740 drm/i915: Disable tiling on IGDNG for now
Swizzle bit detection not working right on it.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 11:34:30 +00:00
Zhenyu Wang
e170b030dc drm/i915: Disable opregion on IGDNG for now
Disable OpRegion support for now until verified on new chipsets.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 11:34:16 +00:00
Zhenyu Wang
b9055052d3 drm/i915: Add new chipset register definitions
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 11:34:01 +00:00
Zhenyu Wang
280da227c8 drm/i915: Add chipset/feature defines for for new chipsets
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
[anholt: dropped drm_pciids.h hunk to avoid loading an incomplete driver]
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 11:34:00 +00:00
Linus Torvalds
b87297fb40 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
  drm/i915: Remove a bad BUG_ON in the fence management code.
2009-06-04 15:23:51 -07:00
Eric Anholt
b962442e46 drm/i915: Change GEM throttling to be 20ms like the comment says.
keithp didn't like the original 20ms plan because a cooperative client could
be starved by an uncooperative client.  There may even have been problems
with cooperative clients versus cooperative clients.  So keithp changed
throttle to just wait for the second to last seqno emitted by that client.
It worked well, until we started getting more round-trips to the server
due to DRI2 -- the server throttles in BlockHandler, and so if you did more
than one round trip after finishing your frame, you'd end up unintentionally
syncing to the swap.

Fix this by keeping track of the client's requests, so the client can wait
when it has an outstanding request over 20ms old.  This should have
non-starving behavior, good behavior in the presence of restarts, and less
waiting.  Improves high-settings openarena performance on my GM45 by 50%.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-06-04 11:44:22 +00:00
Eric Anholt
1fd1c62436 drm/i915: Save/restore cursor state on suspend/resume.
This may fix cursor corruption in X on resume, which would persist until
the cursor was hidden and then shown again.

V2: Also include the cursor control regs.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-06-04 11:43:11 +00:00
Eric Anholt
0e7ddf7eee drm/i915: Remove a bad BUG_ON in the fence management code.
This could be triggered by a gtt mapping fault on 965 that decides to
remove the fence from another object that happens to be active currently.
Since the other object doesn't rely on the fence reg for its execution, we
don't wait for it to finish.  We'll soon be not waiting on 915 most of the
time as well, so just drop the BUG_ON.

Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-04 11:43:09 +00:00
Adam Jackson
fc43896630 drm: ignore EDID with really tiny modes.
Some EDIDs lie and report tiny modes that aren't possible. Ignore
these modes.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-04 10:20:34 +10:00