diff options
| author | Jonathan Kim <jonathan.kim@amd.com> | 2020-03-17 15:43:41 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-04-22 18:11:46 -0400 |
| commit | d84a430d9f7b1ce6baedf1305106d0ae706aca76 (patch) | |
| tree | bbed9c0ce3c43692244ee9033dc685be34c842f2 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | |
| parent | 9f65693577d976792e6dbad9ad42105b129259c6 (diff) | |
drm/amdgpu: fix race between pstate and remote buffer map
Vega20 arbitrates pstate at hive level and not device level. Last peer to
remote buffer unmap could drop P-State while another process is still
remote buffer mapped.
With this fix, P-States still needs to be disabled for now as SMU bug
was discovered on synchronous P2P transfers. This should be fixed in the
next FW update.
Signed-off-by: Jonathan Kim <Jonathan.Kim@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 06fe30e1492d..b13c14d6b820 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -349,10 +349,6 @@ struct amdgpu_vm_manager { */ struct idr pasid_idr; spinlock_t pasid_lock; - - /* counter of mapped memory through xgmi */ - uint32_t xgmi_map_counter; - struct mutex lock_pstate; }; #define amdgpu_vm_copy_pte(adev, ib, pe, src, count) ((adev)->vm_manager.vm_pte_funcs->copy_pte((ib), (pe), (src), (count))) |