Chris Wilson b016cd6ed4 dma-buf: Restore seqlock around dma_resv updates ... This reverts 67c97fb79a ("dma-buf: add reservation_object_fences helper") dd7a7d1ff2 ("drm/i915: use new reservation_object_fences helper") 0e1d8083bd ("dma-buf: further relax reservation_object_add_shared_fence") 5d344f58da ("dma-buf: nuke reservation_object seq number") The scenario that defeats simply grabbing a set of shared/exclusive fences and using them blissfully under RCU is that any of those fences may be reallocated by a SLAB_TYPESAFE_BY_RCU fence slab cache. In this scenario, while keeping the rcu_read_lock we need to establish that no fence was changed in the dma_resv after a read (or full) memory barrier. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190814182401.25009-1-chris@chris-wilson.co.uk		2019-08-16 12:40:58 +01:00
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acp	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
amdgpu	dma-buf: Restore seqlock around dma_resv updates	2019-08-16 12:40:58 +01:00
amdkfd	drm fixes for -rc1:	2019-07-19 12:29:43 -07:00
display	dma-buf: rename reservation_object to dma_resv	2019-08-13 09:09:30 +02:00
include	drm/amd/powerplay: increase the SMU msg response waiting time	2019-07-11 14:37:23 -05:00
powerplay	drm/amd/powerplay: update vega20 driver if to fit latest SMU firmware	2019-07-17 13:34:30 -05:00