diff options
| author | Christian König | 2016-03-08 18:03:27 +0100 |
|---|---|---|
| committer | Alex Deucher | 2016-03-09 13:04:02 -0500 |
| commit | 32b41ac21fde8f7cea465d74c570fc7bd0089163 (patch) | |
| tree | a700f466f89fa94ce2b0cc9f63e24ba48518f67b | |
| parent | 20250215821140801369b84f8cbe79a459a82ba5 (diff) | |
drm/amdgpu: Revert "add mutex for ba_va->valids/invalids"
Not needed any more because we need to protect the elements on the list anyway.
This reverts commit 38bf516c75b4ef0f5c716e05fa9baab7c52d6c39.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 17 |
2 files changed, 6 insertions, 12 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 28b4088b2530..9a03d566bf6d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -484,7 +484,6 @@ struct amdgpu_bo_va_mapping { /* bo virtual addresses in a specific vm */ struct amdgpu_bo_va { - struct mutex mutex; /* protected by bo being reserved */ struct list_head bo_list; struct fence *last_pt_update; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 0e6d0d1f4041..b6c011b83641 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -1009,9 +1009,8 @@ int amdgpu_vm_clear_invalids(struct amdgpu_device *adev, bo_va = list_first_entry(&vm->invalidated, struct amdgpu_bo_va, vm_status); spin_unlock(&vm->status_lock); - mutex_lock(&bo_va->mutex); + r = amdgpu_vm_bo_update(adev, bo_va, NULL); - mutex_unlock(&bo_va->mutex); if (r) return r; @@ -1055,7 +1054,7 @@ struct amdgpu_bo_va *amdgpu_vm_bo_add(struct amdgpu_device *adev, INIT_LIST_HEAD(&bo_va->valids); INIT_LIST_HEAD(&bo_va->invalids); INIT_LIST_HEAD(&bo_va->vm_status); - mutex_init(&bo_va->mutex); + list_add_tail(&bo_va->bo_list, &bo->va); return bo_va; @@ -1131,9 +1130,7 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev, mapping->offset = offset; mapping->flags = flags; - mutex_lock(&bo_va->mutex); list_add(&mapping->list, &bo_va->invalids); - mutex_unlock(&bo_va->mutex); interval_tree_insert(&mapping->it, &vm->va); /* Make sure the page tables are allocated */ @@ -1215,7 +1212,7 @@ int amdgpu_vm_bo_unmap(struct amdgpu_device *adev, bool valid = true; saddr /= AMDGPU_GPU_PAGE_SIZE; - mutex_lock(&bo_va->mutex); + list_for_each_entry(mapping, &bo_va->valids, list) { if (mapping->it.start == saddr) break; @@ -1229,12 +1226,10 @@ int amdgpu_vm_bo_unmap(struct amdgpu_device *adev, break; } - if (&mapping->list == &bo_va->invalids) { - mutex_unlock(&bo_va->mutex); + if (&mapping->list == &bo_va->invalids) return -ENOENT; - } } - mutex_unlock(&bo_va->mutex); + list_del(&mapping->list); interval_tree_remove(&mapping->it, &vm->va); trace_amdgpu_vm_bo_unmap(bo_va, mapping); @@ -1280,8 +1275,8 @@ void amdgpu_vm_bo_rmv(struct amdgpu_device *adev, interval_tree_remove(&mapping->it, &vm->va); kfree(mapping); } + fence_put(bo_va->last_pt_update); - mutex_destroy(&bo_va->mutex); kfree(bo_va); } |