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drm/amdgpu: refine codes to avoid reentering GPU recovery

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if other threads have holden the reset lock, recovery will
fail to try_lock. Therefore we introduce atomic hive->in_reset
and adev->in_gpu_reset, to avoid reentering GPU recovery.

v2:
drop "? true : false" in the definition of amdgpu_in_reset

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dennis Li
2020-08-19 17:23:03 +08:00
committed by Alex Deucher
parent c9977dffcc
commit 53b3f8f40e
28 changed files with 127 additions and 122 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
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@@ -423,7 +423,7 @@ static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
unsigned long flags, end_jiffies;
int retry;
if (adev->in_gpu_reset)
if (amdgpu_in_reset(adev))
return -EIO;
acquire_queue(kgd, pipe_id, queue_id);