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linux_dsm_epyc7002/drivers/gpu
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Chris Wilson b85577b728 drm/i915: Order two completing nop_submit_request 
If two nop's (requests in-flight following a wedged device) complete at
the same time, the global_seqno value written to the HWSP is undefined
as the two threads are not serialized.

v2: Use irqsafe spinlock. We expect the callback may be called from
inside another irq spinlock, so we can't unconditionally restore irqs.

Fixes: ce1135c7de ("drm/i915: Complete requests in nop_submit_request")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006115617.18432-1-chris@chris-wilson.co.uk
(cherry picked from commit 8d550824c6)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-10-09 10:33:33 -07:00
..
drm drm/i915: Order two completing nop_submit_request 2017-10-09 10:33:33 -07:00
host1x drm/tegra: Changes for v4.14-rc1 2017-08-21 17:37:33 +10:00
ipu-v3 main drm pull request for 4.14 merge window 2017-09-03 17:02:26 -07:00
vga sched/wait: Rename wait_queue_t => wait_queue_entry_t 2017-06-20 12:18:27 +02:00
Makefile