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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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6
drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@@ -949,7 +949,7 @@ struct amdgpu_device {
bool in_suspend;
bool in_hibernate;
bool in_gpu_reset;
atomic_t in_gpu_reset;
enum pp_mp1_state mp1_state;
struct mutex lock_reset;
struct amdgpu_doorbell_index doorbell_index;
@@ -1267,4 +1267,8 @@ static inline bool amdgpu_is_tmz(struct amdgpu_device *adev)
return adev->gmc.tmz_enabled;
}
static inline int amdgpu_in_reset(struct amdgpu_device *adev)
{
return atomic_read(&adev->in_gpu_reset);
}
#endif