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linux/drivers/gpu/drm/nouveau
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Mario Kleiner dcfb1009df drm/nv50-/mc: fix kms pageflip events by reordering irq handling order. 
Whenever a single nouveau_mc_intr() main gpu irq-handler invocation was
responsible for calling both, the vblank-irq handler (display engine irq)
and kms-pageflip completion handler (from fifo irq), the order of
invocation was wrong. nouveau_finish_flip() was called before
drm_handle_vblank() for the vblank of pageflip completion, so the
emitted pageflip event contained stale vblank count and timestamp
from previous vblank. This caused failure in userspace to timestamp
properly.

Reorder order of invocation of engine irq handlers: Put
NVDEV_ENGINE_DISP always on top, and thereby before NVDEV_ENGINE_FIFO,
so that drm_handle_vblank() gets called to update vblank timestamps
and count before potential pageflip events make use of that
information.

This works on nv-50 and later, where kms-pageflip completion triggers
an irq either after a separate vblank irq, or both pageflip and vblank
trigger one common irq invocation, but never before vblank irqs.

v2 (Ben):
- removed mods for nv04-nv40, it doesn't help there anyway
- this is considered a hack, and a better solution should be found

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: <stable@vger.kernel.org> # 3.13+
 		2014-06-10 16:08:08 +10:00
..
core drm/nv50-/mc: fix kms pageflip events by reordering irq handling order. 2014-06-10 16:08:08 +10:00
dispnv04 drm/nouveau: replace drm_get_connector_name() with direct name field use 2014-06-04 13:14:41 +10:00
Kconfig ACPI / gpu / drm: Stop selecting VIDEO_OUTPUT_CONTROL 2014-03-20 02:37:22 +01:00
Makefile drm/nouveau/graph: add GK20A support 2014-06-10 16:05:50 +10:00
nouveau_abi16.c support for platform devices 2014-03-26 14:08:04 +10:00
nouveau_abi16.h drm/nouveau: port all engines to new engine module format 2012-10-03 13:12:56 +10:00
nouveau_acpi.c drm/nouveau/acpi: allow non-optimus setups to load vbios from acpi 2014-05-02 16:24:52 +10:00
nouveau_acpi.h nouveau: ACPI support depends on X86 and X86_PLATFORM_DEVICES 2013-02-20 16:05:16 +10:00
nouveau_agp.c support for platform devices 2014-03-26 14:08:04 +10:00
nouveau_agp.h drm/nouveau: implement devinit subdev, and new init table parser 2012-10-03 13:12:47 +10:00
nouveau_backlight.c drm/sysfs: sort out minor and connector device object lifetimes. 2013-10-22 09:37:40 +01:00
nouveau_bios.c drm/nouveau: recognise higher link rate for available dp bw calculations 2014-03-26 14:08:21 +10:00
nouveau_bios.h drm/nv04/disp: hide all the cruft away in its own little hole 2013-04-26 15:37:51 +10:00
nouveau_bo.c support for platform devices 2014-03-26 14:08:04 +10:00
nouveau_bo.h drm/nouveau: embed gem object in nouveau_bo 2013-10-09 14:37:55 +10:00
nouveau_chan.c support for platform devices 2014-03-26 14:08:04 +10:00
nouveau_chan.h drm/nve0: use async copy engine for ttm buffer moves if available 2012-10-03 13:13:02 +10:00
nouveau_connector.c drm/nouveau: replace drm_get_connector_name() with direct name field use 2014-06-04 13:14:41 +10:00
nouveau_connector.h drm/nouveau: remove prototype for non-existent nouveau_connector_bpp 2013-11-08 15:36:08 +10:00
nouveau_crtc.h drm/nouveau: rename nvd0_display to nv50_display to reflect reality since merge 2012-11-29 09:57:58 +10:00
nouveau_debugfs.c drm/nouveau: restore debugfs/vbios.rom support 2013-02-20 20:46:34 +10:00
nouveau_debugfs.h drm/nouveau: restore debugfs/vbios.rom support 2013-02-20 20:46:34 +10:00
nouveau_display.c Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes 2014-05-07 09:06:21 +10:00
nouveau_display.h drm/nouveau: implement hooks for needed for drm vblank timestamping support 2014-01-30 09:20:27 +10:00
nouveau_dma.c drm: Kill DRM_*MEMORYBARRIER 2013-12-18 11:35:21 +10:00
nouveau_dma.h drm: Kill DRM_*MEMORYBARRIER 2013-12-18 11:35:21 +10:00
nouveau_dp.c drm/nv50-/disp: move DP link training to core and train from supervisor 2013-02-20 16:01:02 +10:00
nouveau_drm.c Merge tag 'drm-intel-fixes-2014-04-04' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-04-05 16:14:21 +10:00
nouveau_drm.h drm/nouveau: use nv_debug for NV_DEBUG, make DRM a separate subflag 2014-03-26 13:59:32 +10:00
nouveau_encoder.h drm/nv04/disp: hide all the cruft away in its own little hole 2013-04-26 15:37:51 +10:00
nouveau_fbcon.c drm/nouveau: fix fbcon not being accelerated after suspend 2014-03-26 14:08:13 +10:00
nouveau_fbcon.h Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-10-03 23:29:23 -07:00
nouveau_fence.c drm: Kill DRM_HZ 2013-12-18 11:33:24 +10:00
nouveau_fence.h drm/nouveau: delay busy bo vma removal until fence signals 2013-07-01 13:50:31 +10:00
nouveau_gem.c drm: init TTM dev_mapping in ttm_bo_device_init() 2014-03-16 12:23:42 +01:00
nouveau_gem.h drm: kill ->gem_init_object() and friends 2013-10-09 14:38:02 +10:00
nouveau_hwmon.c drm/nouveau/hwmon: replace strict_strtol() with kstrtol() 2014-03-26 13:59:31 +10:00
nouveau_hwmon.h drm/nouveau/drm/pm: remove everything except the hwmon interfaces to THERM 2013-11-08 15:40:00 +10:00
nouveau_ioc32.c drm/nouveau: fix up 32-bit ioctls and device wake up. 2013-09-02 09:52:55 +10:00
nouveau_ioctl.h drm/nouveau: fix up 32-bit ioctls and device wake up. 2013-09-02 09:52:55 +10:00
nouveau_prime.c drm/nouveau: embed gem object in nouveau_bo 2013-10-09 14:37:55 +10:00
nouveau_reg.h
…
nouveau_sgdma.c drm/nouveau/vm: reduce number of entry-points to vm_map() 2014-01-23 13:38:25 +10:00
nouveau_sysfs.c support for platform devices 2014-03-26 14:08:04 +10:00
nouveau_sysfs.h drm/nouveau: implement a simple sysfs interface to new pm code 2013-11-08 15:40:18 +10:00
nouveau_ttm.c support for platform devices 2014-03-26 14:08:04 +10:00
nouveau_ttm.h drm/nouveau: port remainder of drm code, and rip out compat layer 2012-10-03 13:12:59 +10:00
nouveau_vga.c drm: Rip out totally bogus vga_switcheroo->can_switch locking 2014-04-23 10:32:33 +02:00
nouveau_vga.h drm/nouveau: port remainder of drm code, and rip out compat layer 2012-10-03 13:12:59 +10:00
nv04_fbcon.c drm/nv11-: synchronise flips to vblank, unless async flip requested 2013-11-14 14:56:56 +10:00
nv04_fence.c drm/nouveau/fence: make internal hooks part of the context 2013-02-20 16:00:53 +10:00
nv10_fence.c drm/nouveau/fence: make internal hooks part of the context 2013-02-20 16:00:53 +10:00
nv10_fence.h drm/nouveau: share fence structures between nv10+ and nv50 implementations 2013-02-20 16:00:34 +10:00
nv17_fence.c drm/nouveau: fix semaphore dmabuf obj 2013-07-30 16:46:55 +10:00
nv50_display.c drm/nv50-/kms: wait for enough ring space in crtc_prepare() 2014-06-10 16:05:52 +10:00
nv50_display.h drm/nouveau: rename nvd0_display to nv50_display to reflect reality since merge 2012-11-29 09:57:58 +10:00
nv50_fbcon.c drm/nouveau: port remainder of drm code, and rip out compat layer 2012-10-03 13:12:59 +10:00
nv50_fence.c drm/nouveau: fix semaphore dmabuf obj 2013-07-30 16:46:55 +10:00
nv84_fence.c drm/nv84-/fence: prepare for emit/sync support of sysram sequences 2013-02-20 16:00:53 +10:00
nvc0_fbcon.c drm/nouveau: port remainder of drm code, and rip out compat layer 2012-10-03 13:12:59 +10:00
nvc0_fence.c drm/nv84-/fence: prepare for emit/sync support of sysram sequences 2013-02-20 16:00:53 +10:00