drm/amdgpu: use ref to keep job alive

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this is to fix fatal page fault error that occured if:
job is signaled/released after its timeout work is already
put to the global queue (in this case the cancel_delayed_work
will return false), which will lead to NX-protection error
page fault during job_timeout_func.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Monk Liu 2016-03-10 12:14:44 +08:00 • committed by Alex Deucher

parent 0de2479c95

commit b6723c8da5

5 changed files with 35 additions and 4 deletions

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2

drivers/gpu/drm/amd/amdgpu/amdgpu.h

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1

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

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15

drivers/gpu/drm/amd/amdgpu/amdgpu_job.c

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8

drivers/gpu/drm/amd/scheduler/gpu_scheduler.c

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13

drivers/gpu/drm/amd/scheduler/gpu_scheduler.h

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