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drm/amdgpu: Implement concurrent asic reset for XGMI.

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Use per hive wq to concurrently send reset commands to all nodes
in the hive.

v2:
Switch to system_highpri_wq after dropping dedicated queue.
Fix non XGMI code path KASAN error.
Stop  the hive reset for each node loop if there
is a reset failure on any of the nodes.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Andrey Grodzovsky
2018-11-29 15:14:27 -05:00
committed by Alex Deucher
parent a82400b57a
commit d4535e2c01
2 changed files with 41 additions and 5 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@@ -910,7 +910,9 @@ struct amdgpu_device {
bool in_gpu_reset;
struct mutex lock_reset;
struct amdgpu_doorbell_index doorbell_index;
int asic_reset_res;
struct work_struct xgmi_reset_work;
};
static inline struct amdgpu_device *amdgpu_ttm_adev(struct ttm_bo_device *bdev)