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linux-hardened/drivers/gpu/drm
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Thomas Hellstrom 496eb6fd2c drm/vmwgfx: Replace the hw mutex with a hw spinlock 
Fixes a case where we call vmw_fifo_idle() from within a wait function with
task state !TASK_RUNNING, which is illegal.

In addition, make the locking fine-grained, so that it is performed once
for every read- and write operation. This is of course more costly, but we
don't perform much register access in the timing critical paths anyway. Instead
we have the extra benefit of being sure that we don't forget the hw lock around
register accesses. I think currently the kms code was quite buggy w r t this.

This fixes Red Hat Bugzilla Bug 1180796

Cc: stable@vger.kernel.org
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2015-01-19 03:02:13 -08:00
..
amd drm/amdkfd: rewrite kfd_ioctl() according to drm_ioctl() 2015-01-06 19:44:36 +02:00
armada Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
ast drm: Move drm_crtc_init from drm_crtc.h to drm_plane_helper.h 2014-11-05 00:14:55 +01:00
bochs bochs: add page_flip 2014-11-20 11:27:31 +10:00
bridge
cirrus drm/cirrus: allow 32bpp framebuffers for cirrus drm 2014-11-20 11:42:46 +10:00
exynos Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
gma500 drm/gma500: add support for atom e6xx lpc lvds i2c 2014-12-02 13:42:49 +10:00
i2c drm: Add adv7511 encoder driver 2014-11-26 20:09:40 +02:00
i810 drm: move drm_mmap to <drm/drm_legacy.h> 2014-09-24 11:43:07 +10:00
i915 Merge tag 'drm-intel-next-fixes-2014-12-30' of git://anongit.freedesktop.org/drm-intel into linus 2015-01-04 17:41:00 +10:00
imx Staging patches for 3.19-rc1 2014-12-15 18:06:13 -08:00
mga drm: move drm_mmap to <drm/drm_legacy.h> 2014-09-24 11:43:07 +10:00
mgag200 drm: Move drm_crtc_init from drm_crtc.h to drm_plane_helper.h 2014-11-05 00:14:55 +01:00
msm Merge branch 'msm-fixes-3.19' of git://people.freedesktop.org/~robclark/linux into drm-fixes 2014-12-23 08:21:54 +10:00
nouveau Merge branch 'linux-3.19' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes 2015-01-08 10:19:24 +10:00
omapdrm Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
panel Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
qxl drm/ttm: optionally move duplicates to a separate list 2014-12-03 18:26:52 -05:00
r128 drm: remove unnecessary sizeof(u8) 2014-11-20 11:30:37 +10:00
radeon Merge tag 'amdkfd-fixes-2015-01-06' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes 2015-01-08 10:36:37 +10:00
rcar-du Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
rockchip drm: rockchip: Add basic drm driver 2014-12-02 17:29:03 +08:00
savage drm: move drm_mmap to <drm/drm_legacy.h> 2014-09-24 11:43:07 +10:00
shmobile Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
sis drm: move drm_mmap to <drm/drm_legacy.h> 2014-09-24 11:43:07 +10:00
sti Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
tdfx drm: move drm_mmap to <drm/drm_legacy.h> 2014-09-24 11:43:07 +10:00
tegra drm/tegra: dc: Select root window for event dispatch 2014-12-17 14:27:39 +01:00
tilcdc Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
ttm drm/ttm: optionally move duplicates to a separate list 2014-12-03 18:26:52 -05:00
udl drm/udl: properly check for error pointers 2014-11-26 10:03:18 +10:00
via drm: move drm_mmap to <drm/drm_legacy.h> 2014-09-24 11:43:07 +10:00
vmwgfx drm/vmwgfx: Replace the hw mutex with a hw spinlock 2015-01-19 03:02:13 -08:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic.c drm/atomic: track bitmask of planes attached to crtc 2014-11-27 15:38:15 +01:00
drm_atomic_helper.c drm/atomic: fix potential null ptr on plane enable 2014-12-17 18:39:57 +01:00
drm_auth.c
drm_bufs.c
drm_cache.c
drm_context.c
drm_crtc.c Merge tag 'topic/core-stuff-2014-12-10' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-12-11 10:12:57 +10:00
drm_crtc_helper.c drm/atomic: Refcounting for plane_state->fb 2014-11-06 21:08:37 +01:00
drm_crtc_internal.h
drm_debugfs.c
drm_dma.c
drm_dp_helper.c drm/dp: retry AUX transactions 32 times (v1.1) 2014-12-09 09:56:44 +10:00
drm_dp_mst_topology.c drm/tile: expose the tile property to userspace (v3) 2014-12-09 09:56:48 +10:00
drm_drv.c drm: Document that drm_dev_alloc doesn't need a parent 2014-11-25 13:12:42 +01:00
drm_edid.c Merge tag 'topic/core-stuff-2014-12-10' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-12-11 10:12:57 +10:00
drm_edid_load.c drm/edid: Deletion of an unnecessary check before the function call "release_firmware" 2014-11-21 12:16:27 +10:00
drm_encoder_slave.c
drm_fb_cma_helper.c
drm_fb_helper.c drm/fb: add support for tiled monitor configurations. (v2) 2014-12-09 09:56:49 +10:00
drm_flip_work.c drm: flip-work: change drm_flip_work_init prototype 2014-11-15 09:29:14 +10:00
drm_fops.c drm: Fix memory leak at error path of drm_read() 2014-12-04 13:28:42 +01:00
drm_gem.c drm: Sanitize DRM_IOCTL_MODE_CREATE_DUMB input 2014-11-15 09:50:21 +10:00
drm_gem_cma_helper.c drm/cma: Remove call to drm_gem_free_mmap_offset() 2014-11-13 13:27:33 +01:00
drm_global.c
drm_hashtab.c
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_irq.c drm/irq: Add drm_crtc_vblank_count() 2014-12-17 14:27:35 +01:00
drm_legacy.h
drm_lock.c
drm_memory.c
drm_mipi_dsi.c drm/dsi: Do not require .owner field to be set 2014-11-13 13:56:17 +01:00
drm_mm.c
drm_modes.c gpu:drm: Fix typo in Documentation/DocBook/drm.xml 2014-10-21 10:55:33 +02:00
drm_modeset_lock.c drm: Per-plane locking 2014-11-12 17:56:12 +10:00
drm_of.c
drm_panel.c
drm_pci.c
drm_plane_helper.c drm/plane: Pass old state to ->atomic_update() 2014-11-25 13:27:58 +01:00
drm_platform.c
drm_prime.c drm: Miscellaneous fixes for v3.19-rc1 2014-11-15 09:37:20 +10:00
drm_probe_helper.c drm: Fix DRM_FORCE_ON_DIGITAL use 2014-11-04 09:45:04 +01:00
drm_rect.c
drm_scatter.c
drm_sysfs.c
drm_trace.h
drm_trace_points.c
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 Merge branch 'drm_iommu_v15' of https://github.com/markyzq/kernel-drm-rockchip into drm-next 2014-12-08 13:45:18 +10:00
Makefile drm: Put amdkfd before radeon in drm Makefile 2014-12-21 15:21:41 +02:00