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2010-09-24drm/nouveau: remove second map of notifier boBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-09-24drm/nouveau: move check for no-op bo move before memcpy fallbackBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-09-24drm/nv50: add new accelerated bo move funtionBen Skeggs
Hopefully this one will be better able to cope with moving tiled buffers around without getting them all scrambled as a result. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-09-24drm/nv20: Use the nv30 CRTC bandwidth calculation code.Francisco Jerez
nv2x CRTC FIFOs are as large as in nv3x (4kB it seems), and the FIFO control registers have the same layout: we can make them share the same implementation. Previously we were using the nv1x code, but the calculated FIFO watermarks are usually too low for nv2x and they cause horrible scanout artifacts. They've gone unnoticed until now because we've been leaving one of the bandwidth regs uninitialized (CRE 47, which contains the most significant bits of FFLWM), so everything seemed to work fine except in some cases after a cold boot, depending on the memory bandwidth and pixel clocks used. Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-09-24drm/nouveau: Fix suspend on some nv4x AGP cards.Francisco Jerez
On some nv4x cards (specifically, the ones that use an internal PCIE->AGP bridge) the AGP controller state isn't preserved after a suspend/resume cycle, and the AGP control registers have moved from 0x18xx to 0x100xx, so the FW check in nouveau_mem_reset_agp() doesn't quite work. Check "dev->agp->mode" instead. Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-09-24Merge remote branch 'origin/master' of /home/airlied/kernel//linux-2.6 into ↵Dave Airlie
drm-core-next
2010-09-21Merge remote branch 'linus' into drm-intel-fixesChris Wilson
2010-09-20drm/i915: Hold a reference to the object whilst unbinding the eviction listChris Wilson
During heavy aperture thrashing we may be forced to wait upon several active objects during eviction. The active list may be the last reference to these objects and so the action of waiting upon one of them may cause another to be freed (and itself unbound). To prevent the object disappearing underneath us, we need to acquire and hold a reference whilst unbinding. This should fix the reported page refcount OOPS: kernel BUG at drivers/gpu/drm/i915/i915_gem.c:1444! ... RIP: 0010:[<ffffffffa0093026>] [<ffffffffa0093026>] i915_gem_object_put_pages+0x25/0xf5 [i915] Call Trace: [<ffffffffa009481d>] i915_gem_object_unbind+0xc5/0x1a7 [i915] [<ffffffffa0098ab2>] i915_gem_evict_something+0x3bd/0x409 [i915] [<ffffffffa0027923>] ? drm_gem_object_lookup+0x27/0x57 [drm] [<ffffffffa0093bc3>] i915_gem_object_bind_to_gtt+0x1d3/0x279 [i915] [<ffffffffa0095b30>] i915_gem_object_pin+0xa3/0x146 [i915] [<ffffffffa0027948>] ? drm_gem_object_lookup+0x4c/0x57 [drm] [<ffffffffa00961bc>] i915_gem_do_execbuffer+0x50d/0xe32 [i915] Reported-by: Shawn Starr <shawn.starr@rogers.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=18902 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-17drm/i915,agp/intel: Add second set of PCI-IDs for B43Chris Wilson
There is a second revision of B43 (a desktop gen4 part) floating around, functionally equivalent to the original B43, so simply add the new PCI-IDs. Bugzilla: https://bugs.freedesktop.org/show_bugs.cgi?id=30221 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2010-09-17drm/i915: Fix Sandybridge fence registersChris Wilson
With 5 places to update when adding handling for fence registers, it is easy to overlook one or two. Correct that oversight, but fence management should be improved before a new set of registers is added. Bugzilla: https://bugs.freedesktop.org/show_bug?id=30199 Original patch by: Yuanhan Liu <yuanhan.liu@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2010-09-17drm/i915/crt: Downgrade warnings for hotplug failuresChris Wilson
These are not fatal errors, so do not alarm the user by filling the logs with *** ERROR ***. Especially as we know that g4x CRT detection is a little sticky. On the one hand the errors are valid since they are warning us of a stall -- we poll the register whilst holding the mode lock so not even the mouse will update. On the other hand, those stalls were already present yet nobody complained. Reported-by: Andi Kleen <andi@firstfloor.org> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=18332 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-15drm/radeon/kms: only warn on mipmap size checks in r600 cs checker (v2)Alex Deucher
The texture base address registers are in units of 256 bytes. The original CS checker treated these offsets as bytes, so the original check was wrong. I fixed the units in a patch during the 2.6.36 cycle, but this ended up breaking some existing userspace (probably due to a bug in either userspace texture allocation or the drm texture mipmap checker). So for now, until we come up with a better fix, just warn if the mipmap size it too large. This will keep existing userspace working and it should be just as safe as before when we were checking the wrong units. These are GPU MC addresses, so if they fall outside of the VRAM or GART apertures, they end up at the GPU default page, so this should be safe from a security perspective. v2: Just disable the warning. It just spams the log and there's nothing the user can do about it. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: Jerome Glisse <glisse@freedesktop.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-14drm/radeon/kms: force legacy pll algo for RV620 LVDSAlex Deucher
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 RV620 LVDS panels. The old behavior (new pll algo) can be selected by setting the new_pll module parameter to 1. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=30029 Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-14drm: fix race between driver loading and userspace open.Dave Airlie
Not 100% sure this is due to BKL removal, its most likely a combination of that + userspace timing changes in udev/plymouth. The drm adds the sysfs device before the driver has completed internal loading, this causes udev to make the node and plymouth to open it before we've completed loading. The proper solution is to delay the sysfs manipulation until later in loading however this causes knock on issues with sysfs connector nodes, so we can use the global mutex to serialise loading and userspace opens. Reported-by: Toni Spets (hifi on #radeon) Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-14drm: Use a nondestructive mode for output detect when polling (v2)Chris Wilson
v2: Julien Cristau pointed out that @nondestructive results in double-negatives and confusion when trying to interpret the parameter, so use @force instead. Much easier to type as well. ;-) And fix the miscompilation of vmgfx reported by Sedat Dilek. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-13drm/radeon/kms: fix the colorbuffer CS checker for r300-r500Marek Olšák
This commit fixes bogus CS rejection if it contains a sequence of the following operations: - Set the color buffer 0. track->cb[i].robj becomes non-NULL. - Render. - Set a larger zbuffer than the previously-set color buffer. - Set a larger scissor area as well. - Set the color channel mask to 0 to do depth-only rendering. - Render. --> rejected, because track->cb[i].robj remained non-NULL, therefore the conditional checking for the color channel mask and friends is not performed, and the larger scissor area causes the rejection. This fixes bugs: - https://bugs.freedesktop.org/show_bug.cgi?id=29762 - https://bugs.freedesktop.org/show_bug.cgi?id=28869 And maybe some others which seem to look the same. If possible, this commit should go to stable as well. Signed-off-by: Marek Olšák <maraeo@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-13drm/radeon/kms: increase lockup detection interval to 10 sec for r100-r500Marek Olšák
One subtest of mesa/demos/gltestperf takes 9 seconds to complete, so to prevent an unnecessary gpu reset followed by a hardlock, I am increasing the interval to 10 seconds after which a GPU is considered in a locked-up state. This is on RV530. However, with a little slower GPU, we would surpass the interval easily, so this is not a good fix for gltestperf. Nevertheless, this commit also fixes hardlocks in the applications which render at speed of less than 1 frame per second, where the whole frame consists of only one command stream. The game Tiny & Big is an example. This bar is now lowered to 0.1 fps. Now the question comes down to whether we should (often unsuccessfully) reset the GPU at all? Once we have stable enough drivers, we won't have to. Has the time come already? If possible, this commit should go to stable as well. Signed-off-by: Marek Olšák <maraeo@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-13drm/radeon/kms/evergreen: fix backend setupAlex Deucher
This patch fixes rendering errors on some evergreen boards. Hardcoding the backend map is not an optimal solution, but a better fix is being worked on. Similar to the fix for rv740 (6271901d828b34b27607314026deaf417f9f9b75). Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=29986 Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-13drm: Use a nondestructive mode for output detect when pollingChris Wilson
Destructive load-detection is very expensive and due to failings elsewhere can trigger system wide stalls of up to 600ms. A simple first step to correcting this is not to invoke such an expensive and destructive load-detection operation automatically. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29536 Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16265 Reported-by: Bruno Prémont <bonbons@linux-vserver.org> Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-13drm/radeon: add some missing copyright headersAlex Deucher
Noticed while adding evergreen blit support. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-13drm: Only decouple the old_fb from the crtc is we call mode_set*Chris Wilson
Otherwise when disabling the output we switch to the new fb (which is likely NULL) and skip the call to mode_set -- leaking driver private state on the old_fb. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29857 Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Dave Airlie <airlied@redhat.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-13drm/radeon/kms: don't enable underscan with interlaced modesAlex Deucher
They aren't compatible. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-13drm/radeon/kms: add connector table for Mac x800Alex Deucher
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=28671 Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-13drm/radeon/kms: fix regression in RMX code (v2)Alex Deucher
caused by d65d65b175a29bd7ea2bb69c046419329c4a5db7 need to update the radeon crtc priv native mode before using it. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=30049 v2: integrate v/h copy paste typo Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-13drm: Fix regression in disable polling e58f637Chris Wilson
I broke out my trusty i845 and found a new boot failure, which upon inspection turned out to be a recursion within: drm_helper_probe_single_connector_modes() -> drm_helper_hpd_irq_event() -> intel_crt_detect() -> drm_helper_probe_single_connector_modes() Calling drm_kms_helper_poll_enable() instead performs the desired re-initialisation of the polling should the user have toggled the parameter, without the recursive side-effect. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Dave Airlie <airlied@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-13Merge remote branch 'linus' into drm-intel-fixesChris Wilson
2010-09-12drm/i915: Ensure that the crtcinfo is populated during mode_fixup()Chris Wilson
This should fix the mysterious mode setting failures reported during boot up and after resume, generally for i8xx class machines. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16478 Reported-and-tested-by: Xavier Chantry <chantry.xavier@gmail.com> Buzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29413 Tested-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2010-09-10Merge branch 'drm-intel-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel * 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel: drm/i915: don't enable self-refresh on Ironlake drm/i915: Double check that the wait_request is not pending before warning Revert "drm/i915: Warn if we run out of FIFO space for a mode" Revert "drm/i915: Allow LVDS on pipe A on gen4+" Revert "drm/i915: Enable RC6 on Ironlake."
2010-09-10drm/i915: don't enable self-refresh on IronlakeJesse Barnes
We don't know how to enable it safely, especially as outputs turn on and off. When disabling LP1 we also need to make sure LP2 and 3 are already disabled. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29173 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29082 Reported-by: Chris Lord <chris@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Tested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: stable@kernel.org Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-09drm/i915: Double check that the wait_request is not pending before warningChris Wilson
If we are busy, then we may have woken up the wait_request handler but not yet serviced it before the hang check fires. So in hang check, double check that the i915_gem_do_wait_request() is still pending the wake-up before declaring all hope lost. Fixes regression with e78d73b16bcde921c9cf458d2e4de8e4fc2518f3. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=30073 Reported-and-tested-by: Sitsofe Wheeler <sitsofe@yahoo.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-08Revert "drm/i915: Warn if we run out of FIFO space for a mode"Chris Wilson
This reverts commit b9421ae8f30958deea98d71477b4a77a066856b4. This warning was so prelevant, even for apparently working machines, that it was just causing fear, anxiety and panic. The root cause still remains, so we will add some better debugging when we focus on fixing it. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=17021 Reported-by: Maciej Rutecki <maciej.rutecki@gmail.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-08Revert "drm/i915: Allow LVDS on pipe A on gen4+"Chris Wilson
This reverts commit 0f3ee801b332d6ff22285386675fe5aaedf035c3. Enabling LVDS on pipe A was causing excessive wakeups on otherwise idle systems due to i915 interrupts. So restrict the LVDS to pipe B once more, whilst the issue is properly diagnosed. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16307 Reported-and-tested-by: Enrico Bandiello <enban@postal.uv.es> Poked-by: Florian Mickler <florian@mickler.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Adam Jackson <ajax@redhat.com> Cc: stable@kernel.org
2010-09-07Merge branch 'drm-intel-fixes' of git://anongit.freedesktop.org/~ickle/drm-intelLinus Torvalds
* 'drm-intel-fixes' of git://anongit.freedesktop.org/~ickle/drm-intel: (25 commits) intel_agp,i915: Add more sandybridge graphics device ids drm/i915: Enable MI_FLUSH on Sandybridge agp/intel: Fix cache control for Sandybridge agp/intel: use #ifdef idiom for intel-agp.h agp/intel: fix physical address mask bits for sandybridge drm/i915: Prevent double dpms on drm/i915: Avoid use of uninitialised values when disabling panel-fitter drm/i915: Avoid pageflipping freeze when we miss the flip prepare interrupt drm/i915: Tightly scope intel_encoder to prevent invalid use drm/i915: Allocate the PCI resource for the MCHBAR drm/i915/dp: Really try 5 times before giving up. drm/i915/sdvo: Restore guess of the DDC bus in absence of VBIOS drm/i915/dp: Boost timeout for enabling transcoder to 100ms drm/i915: Re-use set_base_atomic to share setting of the display registers drm/i915: Fix offset page-flips on i965+ drm/i915: Include a generation number in the device info i915: return -EFAULT if copy_to_user fails i915: return -EFAULT if copy_to_user fails agp/intel: Promote warning about failure to setup flush to error. drm/i915: overlay on gen2 can't address above 1G ...
2010-09-07Revert "drm/i915: Enable RC6 on Ironlake."Chris Wilson
This reverts commit ce17178094f368d9e3f39b2cb4303da5ed633dd4. This commit has been independently bisected a few times as being the cause of a s2ram failure. Reported-and-tested-by: Kyle McMartin <kyle@mcmartin.ca> Reported-and-tested-by: Andy Isaacson <adi@hexapodia.org> Cc: Zou Nan hai <nanhai.zou@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-07intel_agp,i915: Add more sandybridge graphics device idsZhenyu Wang
New pci ids for GT2 and GT2+ on desktop and mobile sandybridge, and graphics device ids for server sandybridge. Also rename original ids string to reflect GT1 version. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Cc: stable@kernel.org Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-07drm/i915: Enable MI_FLUSH on SandybridgeZhenyu Wang
MI_FLUSH is being deprecated, but still available on Sandybridge. Make sure it's enabled as userspace still uses MI_FLUSH. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Cc: stable@kernel.org Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-07agp/intel: Fix cache control for SandybridgeZhenyu Wang
Sandybridge GTT has new cache control bits in PTE, which controls graphics page cache in LLC or LLC/MLC, so we need to extend the mask function to respect the new bits. And set cache control to always LLC only by default on Gen6. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Cc: stable@kernel.org Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-07drm/i915: Prevent double dpms onChris Wilson
Arguably this is a bug in drm-core in that we should not be called twice in succession with DPMS_ON, however this is still occuring and we see FDI link training failures on the second call leading to the occassional blank display. For the time being ignore the repeated call. Original patch by Dave Airlie <airlied@redhat.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2010-09-07drm/i915: Avoid use of uninitialised values when disabling panel-fitterChris Wilson
We were passing garbage values into the panel-fitter control register when disabling it on Ironlake - those values (filter modes and reserved MBZ bits) would have then be re-used the next time panel-fitting was enabled. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-07drm/i915: Avoid pageflipping freeze when we miss the flip prepare interruptSimon Farnsworth
When we miss the flip prepare interrupt, we never get into the software state needed to restart userspace, resulting in a freeze of a full-screen OpenGL application (such as a compositor). Work around this by checking DSPxSURF/DSPxBASE to see if the page flip has actually happened. If it has, do the work we would have done when the flip prepare interrupt comes in. Also, add debugfs information to tell us what's going on (based on the patch from Chris Wilson attached to bugs.fdo bug #29798). Signed-off-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-07drm/i915: Tightly scope intel_encoder to prevent invalid useChris Wilson
We reset intel_encoder for every matching encoder whilst iterating over the encoders attached to this crtc when changing mode. As such in a cloned configuration intel_encoder may not correspond to the correct is_edp encoder. By scoping intel_encoder to the loop, not only is the compiler able to spot this mistake, we also improve readiability for ourselves. [It might not be a mistake, within this function it is unclear as to whether it is permissable for eDP to be cloned...] Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-07drm/i915: Allocate the PCI resource for the MCHBARChris Wilson
We were failing when trying to allocate the resource for MMIO of the MCHBAR because we forgot to specify what type of resource we wanted. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: stable@kernel.org Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-09-07drm/i915/dp: Really try 5 times before giving up.Chris Wilson
Only stop trying if the aux channel sucessfully reports that the transmission was completed, otherwise try again. On the 5th failure, bail and report that something is amiss. This fixes a sporadic failure in reading the EDID for my external panel over DP. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2010-09-07drm/i915/sdvo: Restore guess of the DDC bus in absence of VBIOSChris Wilson
If the VBIOS tells us the mapping of the SDVO device onto the DDC bus, use it. However, if there is no VBIOS available that mapping is uninitialised and we should fallback to our earlier guess. Fix regression introduced in b1083333 (which in turn is a fix for the regression caused by the introduction of this guess, 14571b4). References: Bug 29499 - [945GM] Screen disconnected because of missing VBIOS https://bugs.freedesktop.org/show_bug.cgi?id=29499 Bug 15109 - i945GM fails to detect EDID on DVI port https://bugzilla.kernel.org/show_bug.cgi?id=15109 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reported-and-tested-by: Paul Neumann <paul104x@yahoo.de> Cc: Adam Jackson <ajax@redhat.com> Cc: Zhenyu Wang <zhenyuw@linux.intel.com> Cc: stable@kernel.org
2010-09-07drm/i915/dp: Boost timeout for enabling transcoder to 100msChris Wilson
Adam Hill reported that his Arrandale system required a much longer, up to 200x500us, wait for the panel to initialise or else modesetting would fail. References: https://bugs.freedesktop.org/show_bug.cgi?id=29141 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reported-and-tested-by: Adam Hill <sidepipeuk@yahoo.co.uk>
2010-09-07drm/i915: Re-use set_base_atomic to share setting of the display registersChris Wilson
Lets try to avoid repeating old bugs. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-09-07drm/i915: Fix offset page-flips on i965+Chris Wilson
i965 uses the Display Registers to compute the offset from the display base so the new base does not need adjusting when flipping. The older chipsets use a fence to access the display and so do perceive the surface as linear and have a single base register which is reprogrammed using the flip. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Reported-by: Marty Jack <martyj19@comcast.net> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-09-07drm/i915: Include a generation number in the device infoChris Wilson
To simplify the IS_GEN[234] macros and to enable switching. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-06i915: return -EFAULT if copy_to_user failsDan Carpenter
copy_to_user() returns the number of bytes remaining to be copied and I'm pretty sure we want to return a negative error code here. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2010-09-06i915: return -EFAULT if copy_to_user failsDan Carpenter
copy_to_user returns the number of bytes remaining to be copied, but we want to return a negative error code here. These are returned to userspace. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org