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| author | changzhu <Changfeng.Zhu@amd.com> | 2019-11-19 10:18:39 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-11-22 14:55:19 -0500 |
| commit | 6c2c8972374ac5c35078d36d7559f64c368f7b33 (patch) | |
| tree | 9e7c8e146dcc8da7a8431969611cdb151ea2267b /drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | |
| parent | 1b34de7c3fef0c7ebb3d05acc1756bfb585279ca (diff) | |
| download | linux-6c2c8972374ac5c35078d36d7559f64c368f7b33.tar.gz linux-6c2c8972374ac5c35078d36d7559f64c368f7b33.tar.bz2 linux-6c2c8972374ac5c35078d36d7559f64c368f7b33.zip | |
drm/amdgpu: initialize vm_inv_eng0_sem for gfxhub and mmhub
SW must acquire/release one of the vm_invalidate_eng*_sem around the
invalidation req/ack. Through this way,it can avoid losing invalidate
acknowledge state across power-gating off cycle.
To use vm_invalidate_eng*_sem, it needs to initialize
vm_invalidate_eng*_sem firstly.
Signed-off-by: changzhu <Changfeng.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h index 406736a1bd3d..b499a3de8bb6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h @@ -77,6 +77,7 @@ struct amdgpu_gmc_fault { struct amdgpu_vmhub { uint32_t ctx0_ptb_addr_lo32; uint32_t ctx0_ptb_addr_hi32; + uint32_t vm_inv_eng0_sem; uint32_t vm_inv_eng0_req; uint32_t vm_inv_eng0_ack; uint32_t vm_context0_cntl; |