Only fallback to a set of default modes on a connector iff that
connector is known to be connected. The issue occurs that with limited
hardware which cannot probe a connector and so reports the
connector status as unknown will then attempt to retrieve the modes for
it during drm_helper_probe_single_connector_modes(). Should that fail,
the helper then generates a default set which fools the fb_helper and
causes havoc with the console and beyond.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Polling for a VGA device on an old system can be quite expensive,
causing latencies on the order of 600ms. As we hold the mode mutex for
this time and also need the same mutex to move the cursor, we trigger a
user-visible stall.
The real solution would involve improving the granulatity of the
locking and so perhaps performing some of the probing not under the lock
or some other updates can be done under different locks. Also reducing the
cost of probing for a non-existent monitor would be worthwhile. However,
exposing a parameter to disable polling is a simple workaround in the
meantime.
In order to accommodate users turning polling on and off at runtime, the
polling is potentially re-enabled on every probe. This is coupled to
the user calling xrandr, which seems to be a vaild time to reset the
polling timeout since the information on the connection has just been
updated. (The presumption being that all connections are probed in a
single xrandr pass, which is currently valid.)
References:
Bug 29536 - 2.6.35 causes ~600ms latency every 10s
https://bugs.freedesktop.org/show_bug.cgi?id=29536
Bug 16265 - Why is kslowd accumulating so much CPU time?
https://bugzilla.kernel.org/show_bug.cgi?id=16265
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-and-tested-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
digital underscan support regressed tv-out.
fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=29985
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
These VGT regs need to be programmed via the ring rather than
MMIO as on previous asics (r6xx/r7xx).
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
* 'nouveau/for-airlied' of /ssd/git/drm-nouveau-next:
drm/nv50: initialize ramht_refs list for faked 0 channel
drm/nouveau: Don't take struct_mutex around the pushbuf IOCTL.
drm/nouveau: Take fence spinlock before reading the last sequence.
We need it for PFIFO_INTR_CACHE_ERROR interrupt handling,
because nouveau_fifo_swmthd looks for matching gpuobj in
ramht_refs list.
It fixes kernel panic in nouveau_gpuobj_ref_find.
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
We don't need it and it can lead to lock order inversions with respect
to drm_global_mutex, potentially causing dead locks.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
It fixes a race between the TTM delayed work queue and the GEM IOCTLs
(fdo bug 29583) uncovered by the BKL removal.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
The 7th entry in a lot of evergreen i2c gpio tables is partially
zeroed. Fix the entry.
Should fix the missing ddc entry in:
https://bugs.freedesktop.org/show_bug.cgi?id=29255
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
The tv parameter was added to disable the tv-out connector,
however, it caused a crash if it was set to 0 due to
drm_connector_init not getting called. If tv=0, don't
attempt to add the connector.
Might fix:
https://bugzilla.kernel.org/show_bug.cgi?id=17241
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
There has been periodic evidence that LVDS, on at least some
panels, prefers the dividers selected by the legacy pll algo.
This patch forces the use of the legacy pll algo on RV515
LVDS panels. The old behavior (new pll algo) can be selected
by setting the new_pll module parameter to 1.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This code was originally for forcing some clocks on certain asics.
However, this code was later moved to asic specific functions
for all of the affected asics. The only users of the original
code at this point were r600, rv770, and evergreen and the code
was not relevant for those asics. So, remove it.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
commit: 812d046915
drm/radeon/kms/r7xx: add workaround for hw issue with HDP flush
breaks on AGP boards since there is no VRAM gart table.
This patch fixes the issue by creating a VRAM scratch page so that
can be used on both AGP and PCIE.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=29834
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Rather than calling get_memory_clock and get_engine_clock,
used the tracked values from the pm code. Calling the tables
adds additional latency in the modesetting and pm paths.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
vgaarb: Wrap vga_(get|put) in CONFIG_VGA_ARB
drm/radeon/kms: add missing scratch update in dp_detect
drm/modes: Fix CVT-R modeline generation
drm: fix regression in drm locking since BKL removal.
drm/radeon/kms: remove stray radeon_i2c_destroy
drm: mm: fix range restricted allocations
drm/nouveau: drop drm_global_mutex before sleeping in submission path
drm: export drm_global_mutex for drivers to use
drm/nv20: Don't use pushbuf calls on the original nv20.
drm/nouveau: Fix TMDS on some DCB1.5 boards.
drm/nouveau: Fix backlight control on PPC machines with an internal TMDS panel.
drm/nv30: Apply modesetting to the correct slave encoder
drm/nouveau: Use a helper function to match PCI device/subsystem IDs.
drm/nv50: add dcb type 14 to enum to prevent compiler complaint
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16651
Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Adam Serbinski <adam@serbinksi.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This locking path needs proper auditing but probably too late for changes at this point for 2.6.36, so lets go with the quick fix, which is to drop the lock around schedule.
Reported-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
I missed this one in the i2c unification patch. This
is handled in the core radeon i2c code now.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
With the code cleanup in
7a6b2896f2 is the first bad commit
commit 7a6b2896f2
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Fri Jul 2 15:02:15 2010 +0100
drm_mm: extract check_free_mm_node
I've botched up the range-restriction checks. The result is usually
an X server dying with SIGBUS in libpixman (software fallback rendering).
Change the code to adjust the start and end for range restricted
allocations. IMHO this even makes the code a bit clearer.
Fixes regression bug: https://bugs.freedesktop.org/show_bug.cgi?id=29738
Reported-by-Tested-by: Till MAtthiesen <entropy@everymail.net>
Acked-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
* 'nouveau/for-airlied' of /ssd/git/drm-nouveau-next:
drm/nouveau: drop drm_global_mutex before sleeping in submission path
drm: export drm_global_mutex for drivers to use
drm/nv20: Don't use pushbuf calls on the original nv20.
drm/nouveau: Fix TMDS on some DCB1.5 boards.
drm/nouveau: Fix backlight control on PPC machines with an internal TMDS panel.
drm/nv30: Apply modesetting to the correct slave encoder
drm/nouveau: Use a helper function to match PCI device/subsystem IDs.
drm/nv50: add dcb type 14 to enum to prevent compiler complaint
If we keep hold of the mutex here, the process which currently holds the
buffer object will never be able to release it, causing a deadlock.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
The "return" command is buggy on the original nv20, it jumps back to
the caller address as expected, but it doesn't clear the subroutine
active bit making the subsequent pushbuf calls fail with a "stack"
overflow.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
The TMDS output of an nv11 was being detected as LVDS, because it uses
DCB type 2 for TMDS instead of type 4.
Reported-by: Bertrand VIEILLE <Vieille.Bertrand@free.fr>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
When converting this to the new wait_for macro I inverted the wait
condition, which causes all sorts of problems. So correct it to fix
several failures caused by the bad wait (flickering, bad output
detection, tearing, etc.).
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (33 commits)
drm/radeon/kms: fix typo in radeon_compute_pll_gain
drm/radeon/kms: try to detect tv vs monitor for underscan
drm/radeon/kms: fix sideport detection on newer rs880 boards
drm/radeon: fix passing wrong type to gem object create.
drm/radeon/kms: set encoder type to DVI for HDMI on evergreen
drm/radeon/kms: add back missing break in info ioctl
drm/radeon/kms: don't enable MSIs on AGP boards
drm/radeon/kms: fix agp mode setup on cards that use pcie bridges
drm: move dereference below check
drm: fix end of loop test
drm/radeon/kms: rework radeon_dp_detect() logic
drm/radeon/kms: add missing asic callback assignment for evergreen
drm/radeon/kms/DCE3+: switch pads to ddc mode when going i2c
drm/radeon/kms/pm: bail early if nothing's changing
drm/radeon/kms/atom: clean up dig atom handling
drm/radeon/kms: DCE3/4 transmitter fixes
drm/radeon/kms: rework encoder handling
drm/radeon/kms: DCE3/4 AdjustPixelPll updates
drm/radeon: Fix stack data leak
drm/radeon/kms: fix GTT/VRAM overlapping test
...
* 'nouveau/for-airlied' of /ssd/git/drm-nouveau-next:
drm/nouveau: fix earlier mistake when fixing merge conflict
drm/nvc0: fix thinko in instmem suspend/resume
drm/nouveau: Workaround missing GPIO tables on an Apple iMac G4 NV18.
drm/nouveau: Add TV-out quirk for an MSI nForce2 IGP.
drm/nv50-nvc0: ramht_size is meant to be in bytes, not entries
drm/nouveau: punt some more log messages to debug level
drm/nouveau: remove warning about unknown tmds table revisions
drm/nouveau: check for error when allocating/mapping dummy page
drm/nouveau: fix race condition when under memory pressure
drm/nv50: fix minor thinko from nvc0 changes
drm/nouveau: Don't try DDC on the dummy I2C channel.
Looks like this got copied from the ddx wrong.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
When enabling underscan for hdmi monitors, attempt to detect
whether we are driving a TV or a monitor. The should hopefully
prevent underscan from being enabled on monitors attached via
hdmi that do not overscan the image. Only enable underscan
if the mode is a common hdtv mode (480p, 720p, etc.).
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
The meaning of ucMemoryType changed on recent boards, however,
ulBootUpSidePortClock should be set properly across all boards.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
We are passing a ttm type when we want to pass true/false.
Reported-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: (58 commits)
drm/i915,intel_agp: Add support for Sandybridge D0
drm/i915: fix render pipe control notify on sandybridge
agp/intel: set 40-bit dma mask on Sandybridge
drm/i915: Remove the conflicting BUG_ON()
drm/i915/suspend: s/IS_IRONLAKE/HAS_PCH_SPLIT/
drm/i915/suspend: Flush register writes before busy-waiting.
i915: disable DAC on Ironlake also when doing CRT load detection.
drm/i915: wait for actual vblank, not just 20ms
drm/i915: make sure eDP PLL is enabled at the right time
drm/i915: fix VGA plane disable for Ironlake+
drm/i915: eDP mode set sequence corrections
drm/i915: add panel reset workaround
drm/i915: Enable RC6 on Ironlake.
drm/i915/sdvo: Only set is_lvds if we have a valid fixed mode.
drm/i915: Set up a render context on Ironlake
drm/i915 invalidate indirect state pointers at end of ring exec
drm/i915: Wake-up wait_request() from elapsed hang-check (v2)
drm/i915: Apply i830 errata for cursor alignment
drm/i915: Only update i845/i865 CURBASE when disabled (v2)
drm/i915: FBC is updated within set_base() so remove second call in mode_set()
...
This one is missed in last pipe control fix for sandybridge,
that really unmask interrupt bit for notify in render engine IMR.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
We now attempt to free "active" objects following a GPU hang as either
the GPU will be reset or the hang is permenant. In either case, the GPU
writes will not be flushed to main memory and it should be safe to
return that memory back to the system.
The BUG_ON(active) is thus overkill and can erroneously fire after a
EIO.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
For the shared paths on the next generation chipsets.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
Like on Sandybridge, disabling the DAC here when doing CRT load detect
avoids forever hangs waiting on the hardware.
test procedure on HP 2740p:
boot with no VGA plugged in, start X,
plug in VGA monitor (1280x1024)
chvt 3
machine hangs waiting forever.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Waiting for a hard coded 20ms isn't always enough to make sure a vblank
period has actually occurred, so add code to make sure we really have
passed through a vblank period (or that the pipe is off when disabling).
This prevents problems with mode setting and link training, and seems to
fix a bug like https://bugs.freedesktop.org/show_bug.cgi?id=29278, but
on an HP 8440p instead. Hopefully also fixes
https://bugs.freedesktop.org/show_bug.cgi?id=29141.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Fixes the pink line that shows up with some hdmi monitors. This
will need to be revisited when audio support is added.
Fixes:
http://bugs.freedesktop.org/show_bug.cgi?id=27452
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Noone is using tty argument so let's get rid of it.
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This seems to have gotten lost in the hyper-z merge.
Noticed by legume on IRC.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Asics that use an AGP to PCIE bridge don't have the AGP_STATUS
register so just use whatever mode the host side setup.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: Jerome Glisse <glisse@freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
"fb_helper_conn" is dereferenced before the check for NULL. It's never
actually NULL here, so this is mostly to keep the static checkers happy.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
"agpmem" is never NULL here because it is the list cursor of a
list_for_each_entry() list.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
If the connector is eDP, it can only be DP, not TMDS.
Always set the detected sink type. If the sink is
detected as non-DP, but there is no EDID, you can still
manually force the port on. If the sink type is DP
and there's no DPCD, there's no way to force the monitor
on since you need both ends to train the link.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
The pins for ddc and aux are shared so you need to switch the
mode when doing ddc. The ProcessAuxChannel table already sets
the pin mode to DP. This should fix unreliable ddc issues
on DP ports using non-DP monitors.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This allows the tables to be run in some additional cases
where the connector info isn't necessary.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
- INIT action takes the actual connector type id, not the enum id
- some evergreen cards have the ENABLE_OUTPUT/DISABLE_OUTPUT actions
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
On most newer asics, digital encoders have two links each
and they can be used independantly. As such, treat them as
separate encoders otherwise the individual links will not
get programmed properly at modeset time.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Add options necessary bits for:
- SS on DP
- SS on LVDS
- set clocks right for DP
- deep color on hdmi (needs additional encoder and edid work as well)
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Always zero-init a structure on the stack which is returned by a
function. Otherwise you may leak random stack data from previous
function calls.
This fixes the following warning I was seeing:
CC [M] drivers/gpu/drm/radeon/radeon_atombios.o
drivers/gpu/drm/radeon/radeon_atombios.c: In function "radeon_atom_get_hpd_info_from_gpio":
drivers/gpu/drm/radeon/radeon_atombios.c:261: warning: "hpd.plugged_state" is used uninitialized in this function
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
GTT/VRAM overlapping test had a typo which leaded to not
detecting case when vram_end > gtt_end. This patch fix the
logic and should fix#16574
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
We need to make sure the eDP PLL is enabled before the pipes or planes,
so do it as part of the DP prepare mode set function.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
We need to use I/O port instructions to access VGA registers on
Ironlake+, and it doesn't hurt on other platforms, so switch the VGA
plane disable function over to using them. Move it to init time as well
while we're at it, no need to repeatedly disable the VGA plane with
every mode set and DPMS event.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
We should disable the panel first when shutting down an eDP link. And
when turning one on, the panel needs to be enabled before link training
or eDP I/O won't be enabled.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Ironlake requires that we clear the reset panel bit during power
sequences and restore it afterwards. Uncondtionally add code to do that
since it should be harmless on SNB+.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
With the current screwed but its ABI, ioctls for the drm, Linus pointed out that we could allow userspace to specify the allocation size, but we pass it to the driver which then uses it blindly to store a struct. Now if userspace specifies the allocation size as smaller than the driver needs, the driver can possibly overwrite memory.
This patch restructures the driver ioctls so we store the structure size we are expecting, and make sure we allocate at least that size. The copy from/to userspace are still restricted to the size the user specifies, this allows ioctl structs to grow on both sides of the equation.
Up until now we didn't really use the DRM_IOCTL defines in the kernel, so this cleans them up and adds them for nouveau.
v2:
fix nouveau pushbuf arg (thanks to Ben for pointing it out)
Reported-by: Linus Torvalds <torvalds@linuxfoundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
non-critical issue, CVE-2010-2803
Userspace controls the amount of memory to be allocate, so it can
get the ioctl to allocate more memory than the kernel uses, and get
access to kernel stack. This can only be done for processes authenticated
to the X server for DRI access, and if the user has DRI access.
Fix is to just memset the data to 0 if the user doesn't copy into
it in the first place.
Reported-by: Kees Cook <kees@ubuntu.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This should fix the reported TV-out load detection false positives
(fdo bug 29455).
Reported-by: Vlado Plaga <rechner@vlado-do.de>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
The blob also thinks there's a TV connected, so hardware bug...
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This message is apparently confusing people, and is being blamed for some
modesetting issues. Lets remove the message, and instead replace it
with an unconditional printout of the table revision.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
When VRAM is running out it's possible that the client's push buffers get
evicted to main memory. When they're validated back in, the GPU may
be used for the copy back to VRAM, but the existing synchronisation code
only deals with inter-channel sync, not sync between PFIFO and PGRAPH on
the same channel. This leads to PFIFO fetching from command buffers that
haven't quite been copied by PGRAPH yet.
This patch marks push buffers as so, and forces any GPU-assisted buffer
moves to be done on a different channel, which triggers the correct
synchronisation to happen before we submit them.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* git://git.infradead.org/~dwmw2/ideapad-2.6:
Call acpi_video_register() in intel_opregion_init() failure path
ideapad: Only allow camera state to be set to 0 or 1
ideapad: Stop using global variables
Add Lenovo ideapad driver
If i915 opregion is present, the acpi_video driver doesn't register
itself immediately; it defers that until the i915 opregion code is done.
But if that *fails*, the acpi_video driver was never getting registered.
And thus I have no backlight support on my Lenovo IdeaPad S10-3.
Call acpi_video_register() on the failure path, and it works again.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Matthew Garrett <mjg@redhat.com>
* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (55 commits)
io-mapping: move asm include inside the config option
vgaarb: drop vga.h include
drm/radeon: Add probing of clocks from device-tree
drm/radeon: drop old and broken mesa warning
drm/radeon: Fix pci_map_page() error checking
drm: Remove count_lock for calling lastclose() after 58474713 (v2)
drm/radeon/kms: allow FG_ALPHA_VALUE on r5xx
drm/radeon/kms: another r6xx/r7xx CS checker fix
DRM: Replace kmalloc/memset combos with kzalloc
drm: expand gamma_set
drm/edid: Split mode lists out to their own header for readability
drm/edid: Rewrite mode parse to use the generic detailed block walk
drm/edid: Add detailed block walk for VTB extensions
drm/edid: Add detailed block walk for CEA extensions
drm: Remove unused fields from drm_display_info
drm: Use ENOENT consistently for the error return for an unmatched handle.
drm/radeon/kms: mark 3D power states as performance
drm: Only set DPMS once on the CRTC not after every encoder.
drm/radeon/kms: add additional quirk for Acer rv620 laptop
drm: Propagate error code from fb_create()
...
Fix up trivial conflicts in drivers/gpu/drm/drm_edid.c
When we find no ROM we understand and a device-tree is present, see
if we can retreive clock info from there.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This never really got fixed in mesa, and the kernel deals with the problem
just fine, so don't got reporting things that confuse people.
Signed-off-by: Dave Airlie <airlied@redhat.com>
0 is a valid DMA address from pci_map_page(), use pci_dma_mapping_error()
instead to check for errors
[airlied: fix warning + two other places with errors.]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This is a CS checker fix. I need this for FP16 alpha-test.
Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
add default case for buffer formats
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: Andre Maasikas <amaasikas@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Currently most, if not all, memory allocation in drm_bufs.c is followed by initializing the memory with 0.
Replace the use of kmalloc+memset with kzalloc.
Signed-off-by: Davidlohr Bueso <dave@gnu.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Jesse's initial patch commit said:
"At panic time (i.e. when oops_in_progress is set) we should try a bit
harder to update the screen and make sure output gets to the VT, since
some drivers are capable of flipping back to it.
So make sure we try to unblank and update the display if called from a
panic context."
I've enhanced this to add a flag to the vc that console layer can set to
indicate they want this behaviour to occur. This also adds support to
fbcon for that flag and adds an fb flag for drivers to indicate they want
to use the support. It enables this for KMS drivers.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: James Simmons <jsimmons@infradead.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Expand the crtc_gamma_set function to accept a starting offset. The
reason for this is to eventually use this function for setcolreg from
drm_fb_helper.c. The fbdev colormap function can start at any offset in
the color map.
Signed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This brings us in line with the EDID spec recommendation for mode
priority sorting. We still don't extract all the modes we could from
VTB, but VTB is so rare in the wild that I'm not really concerned.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This is consistent with trying to access a filename that not exist
within a directory which is a good analogy here. The main reason for the
change is that it is easy to confuse the error code of EBADF as an
performing an ioctl on an invalid file descriptor (rather than an
unknown object).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Fixes lack of power saving with multiple heads on
some desktop cards.
Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=16474
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
