linux/drivers/gpu/drm
Maarten Lankhorst 1dadba87cb drm/nouveau: nv84+: fix fence context seqno's
This fixes a regression introduced by "drm/nouveau: rework to new fence interface"
(commit 29ba89b237).

The fence sequence should not be reset after creation, the old value is used instead.
On destruction the final value is written, to prevent another source of accidental
wraparound in case of a channel being destroyed after a hang, and unblocking any other
channel that may wait on the about-to-be-deleted channel to signal.

I'm nothing if not optimistic about any hope of recovery from that. ;-)

Reported-by: Ted Percival <ted@tedp.id.au>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Tested-by: Ted Percival <ted@tedp.id.au>
Acked-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-30 15:49:06 +10:00
..
armada drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
ast drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
bochs drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
bridge
cirrus drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
exynos drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
gma500 drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
i2c drm/tda998x: update for new drm connector APIs. 2014-08-05 10:34:33 +10:00
i810 drm: move drm_mmap to <drm/drm_legacy.h> 2014-09-24 11:43:07 +10:00
i915 drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
mga drm: move drm_mmap to <drm/drm_legacy.h> 2014-09-24 11:43:07 +10:00
mgag200 drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
msm drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
nouveau drm/nouveau: nv84+: fix fence context seqno's 2014-09-30 15:49:06 +10:00
omapdrm drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
panel drm/panel/simple: add optronics B101XTN01.0 (v3) 2014-09-10 11:19:07 -04:00
qxl drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
r128 drm: move drm_mmap to <drm/drm_legacy.h> 2014-09-24 11:43:07 +10:00
radeon drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
rcar-du drm/rcar-du: Add OF support 2014-09-15 11:55:47 +03:00
savage drm: move drm_mmap to <drm/drm_legacy.h> 2014-09-24 11:43:07 +10:00
shmobile drm/shmob: Update copyright notice 2014-09-15 11:34:07 +03:00
sis drm: move drm_mmap to <drm/drm_legacy.h> 2014-09-24 11:43:07 +10:00
sti Linux 3.17-rc5 2014-09-16 11:38:04 +10:00
tdfx drm: move drm_mmap to <drm/drm_legacy.h> 2014-09-24 11:43:07 +10:00
tegra drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
tilcdc drm/tilcdc: panel: Add support for enable GPIO 2014-09-17 10:55:27 +10:00
ttm drm/ttm: Clean usage of ttm_io_prot() with TTM_PL_FLAG_CACHED 2014-09-23 15:00:26 +10:00
udl drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
via drm: move drm_mmap to <drm/drm_legacy.h> 2014-09-24 11:43:07 +10:00
vmwgfx Linux 3.17-rc5 2014-09-16 11:38:04 +10:00
ati_pcigart.c drm: split ati_pcigart.h out of drmP.h 2014-09-12 14:11:14 +10:00
drm_agpsupport.c drm: move AGP definitions harder 2014-09-10 17:40:11 +10:00
drm_auth.c drm: Move piles of functions from drmP.h to drm_internal.h 2014-09-12 11:16:29 +02:00
drm_bufs.c drm: Move __drm_pci_free to drm_legacy.h 2014-09-12 11:08:56 +02:00
drm_cache.c
drm_context.c drm: mark drm_context support as legacy 2014-08-05 19:38:12 +02:00
drm_crtc_helper.c drm/crtc-helper: use drm_framebuffer flags 2014-07-08 11:18:47 +10:00
drm_crtc_internal.h
drm_crtc.c Linux 3.17-rc5 2014-09-16 11:38:04 +10:00
drm_debugfs.c drm: Move piles of functions from drmP.h to drm_internal.h 2014-09-12 11:16:29 +02:00
drm_dma.c drm: Move legacy buffer structures to <drm/drm_legacy.h> 2014-09-12 15:28:12 +02:00
drm_dp_helper.c
drm_dp_mst_topology.c drm: Don't return 0 for a value used as a denominator 2014-08-14 21:24:29 +02:00
drm_drv.c drm: change drm_err return type to void 2014-09-24 11:42:36 +10:00
drm_edid_load.c
drm_edid.c drm/edid: Reduce horizontal timings for pixel replicated modes 2014-09-15 08:56:29 +02:00
drm_encoder_slave.c
drm_fb_cma_helper.c drm: Introduce drm_fb_helper_prepare() 2014-07-08 11:31:28 +10:00
drm_fb_helper.c Merge tag 'drm-intel-next-2014-09-01' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-09-03 08:30:48 +10:00
drm_flip_work.c
drm_fops.c drm: unexport drm_global_mutex 2014-09-12 11:19:47 +02:00
drm_gem_cma_helper.c drm: gem_cma: Use ERR_CAST helper 2014-07-21 14:36:45 +10:00
drm_gem.c drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
drm_global.c
drm_hashtab.c list: fix order of arguments for hlist_add_after(_rcu) 2014-08-06 18:01:24 -07:00
drm_info.c drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
drm_internal.h drm: Move internal debugfs functions to drm_internal.h 2014-09-24 11:43:35 +10:00
drm_ioc32.c
drm_ioctl.c drm: Purge ioctl forward declarations from drmP.h 2014-09-12 15:27:47 +02:00
drm_irq.c drm: Move vblank related module options into drm_irq.c 2014-09-12 11:14:56 +02:00
drm_legacy.h drm: Create drm legacy driver header 2014-09-12 11:08:55 +02:00
drm_lock.c drm: unexport drm_global_mutex 2014-09-12 11:19:47 +02:00
drm_memory.c drm: Move drm_memory.c map support declarations to <drm/drm_legacy.h> 2014-09-12 15:28:12 +02:00
drm_mipi_dsi.c drm/mipi-dsi: consider low power transmission 2014-09-20 00:56:08 +09:00
drm_mm.c
drm_modes.c drm: Perform cmdline mode parsing during connector initialisation 2014-08-06 14:50:12 +02:00
drm_modeset_lock.c drm: Docbook fixes 2014-08-14 21:24:17 +02:00
drm_of.c drm: add of_graph endpoint helper to find possible CRTCs 2014-07-11 15:38:28 +01:00
drm_panel.c
drm_pci.c drm: Move legacy buffer structures to <drm/drm_legacy.h> 2014-09-12 15:28:12 +02:00
drm_plane_helper.c drm/plane-helper: Use proper plane init function 2014-07-18 15:39:28 +02:00
drm_platform.c drm: Goody bye, drm_bus! 2014-09-10 17:43:10 +10:00
drm_prime.c drm: Extract <drm/drm_gem.h> 2014-09-24 11:43:41 +10:00
drm_probe_helper.c drm: Perform cmdline mode parsing during connector initialisation 2014-08-06 14:50:12 +02:00
drm_rect.c drm: Add drm_rect rotation functions 2014-07-11 23:44:12 +02:00
drm_scatter.c drm: Move sg functions into drm_legacy.h 2014-09-12 11:08:54 +02:00
drm_sysfs.c drm: Move piles of functions from drmP.h to drm_internal.h 2014-09-12 11:16:29 +02:00
drm_trace_points.c
drm_trace.h
drm_vm.c drm: Move drm_vm_open_locked into drm_internal.h 2014-09-24 11:43:20 +10:00
drm_vma_manager.c
Kconfig drm: merge drm_usb into udl 2014-09-10 17:43:27 +10:00
Makefile drm: merge drm_usb into udl 2014-09-10 17:43:27 +10:00
README.drm

************************************************************
* For the very latest on DRI development, please see:      *
*     http://dri.freedesktop.org/                          *
************************************************************

The Direct Rendering Manager (drm) is a device-independent kernel-level
device driver that provides support for the XFree86 Direct Rendering
Infrastructure (DRI).

The DRM supports the Direct Rendering Infrastructure (DRI) in four major
ways:

    1. The DRM provides synchronized access to the graphics hardware via
       the use of an optimized two-tiered lock.

    2. The DRM enforces the DRI security policy for access to the graphics
       hardware by only allowing authenticated X11 clients access to
       restricted regions of memory.

    3. The DRM provides a generic DMA engine, complete with multiple
       queues and the ability to detect the need for an OpenGL context
       switch.

    4. The DRM is extensible via the use of small device-specific modules
       that rely extensively on the API exported by the DRM module.


Documentation on the DRI is available from:
    http://dri.freedesktop.org/wiki/Documentation
    http://sourceforge.net/project/showfiles.php?group_id=387
    http://dri.sourceforge.net/doc/

For specific information about kernel-level support, see:

    The Direct Rendering Manager, Kernel Support for the Direct Rendering
    Infrastructure
    http://dri.sourceforge.net/doc/drm_low_level.html

    Hardware Locking for the Direct Rendering Infrastructure
    http://dri.sourceforge.net/doc/hardware_locking_low_level.html

    A Security Analysis of the Direct Rendering Infrastructure
    http://dri.sourceforge.net/doc/security_low_level.html