From 53b3f8f40e6cff36ae12b11e6d6b308af3c7e53f Mon Sep 17 00:00:00 2001 From: Dennis Li Date: Wed, 19 Aug 2020 17:23:03 +0800 Subject: drm/amdgpu: refine codes to avoid reentering GPU recovery 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 Signed-off-by: Dennis Li Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 54666eea1863..72f2a9aeaf0e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -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 -- cgit v1.2.3