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| author | Dennis Li <Dennis.Li@amd.com> | 2020-08-19 17:23:03 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-08-24 12:22:56 -0400 |
| commit | 53b3f8f40e6cff36ae12b11e6d6b308af3c7e53f (patch) | |
| tree | 865f5a2a0f2d69a04dbceb1853672ceef77dcb53 /drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h | |
| parent | c9977dffcc7e0f728e82209c140991c5bd27c491 (diff) | |
| download | linux-53b3f8f40e6cff36ae12b11e6d6b308af3c7e53f.tar.gz linux-53b3f8f40e6cff36ae12b11e6d6b308af3c7e53f.tar.bz2 linux-53b3f8f40e6cff36ae12b11e6d6b308af3c7e53f.zip | |
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 <Hawking.Zhang@amd.com>
Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h index 6999eab16a72..453336ca9675 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h @@ -30,10 +30,11 @@ struct amdgpu_hive_info { uint64_t hive_id; struct list_head device_list; int number_devices; - struct mutex hive_lock, reset_lock; + struct mutex hive_lock; struct kobject *kobj; struct device_attribute dev_attr; struct amdgpu_device *adev; + atomic_t in_reset; int hi_req_count; struct amdgpu_device *hi_req_gpu; struct task_barrier tb; |