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| author | changzhu <Changfeng.Zhu@amd.com> | 2019-11-19 05:18:39 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-11-22 22:27:11 +0300 |
| commit | dab5ef2722cde781ff3f6b3542d673ed174359b8 (patch) | |
| tree | f95413f9c60a1b8db6daac65f294b593d9e1a792 /drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c | |
| parent | c348ad46b0e9503fb55ca84ea7427d736181223f (diff) | |
| download | linux-dab5ef2722cde781ff3f6b3542d673ed174359b8.tar.xz | |
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c index 6fe5c39e5581..753eea25b569 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c @@ -505,6 +505,10 @@ void mmhub_v9_4_init(struct amdgpu_device *adev) SOC15_REG_OFFSET(MMHUB, 0, mmVML2VC0_VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32) + i * MMHUB_INSTANCE_REGISTER_OFFSET; + hub[i]->vm_inv_eng0_sem = + SOC15_REG_OFFSET(MMHUB, 0, + mmVML2VC0_VM_INVALIDATE_ENG0_SEM) + + i * MMHUB_INSTANCE_REGISTER_OFFSET; hub[i]->vm_inv_eng0_req = SOC15_REG_OFFSET(MMHUB, 0, mmVML2VC0_VM_INVALIDATE_ENG0_REQ) + |