drm/i915: Serialise concurrent calls to i915_gem_set_wedged()

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Make i915_gem_set_wedged() and i915_gem_unset_wedged() behaviour more
consistent if called concurrently, and only do the wedging and reporting
once, curtailing any possible race where we start unwedging in the middle
of a wedge.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190114210408.4561-2-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2019-01-14 21:04:01 +00:00

parent 204474a6b8

commit 18bb2bccb5

3 changed files with 28 additions and 9 deletions

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34

drivers/gpu/drm/i915/i915_gem.c

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4

drivers/gpu/drm/i915/i915_gpu_error.h

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1

drivers/gpu/drm/i915/selftests/mock_gem_device.c

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