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drm/amdgpu: Revert "add mutex for ba_va->valids/invalids"

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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>
This commit is contained in:
Christian König 2016-03-08 18:03:27 +01:00 committed by Alex Deucher
parent 2025021582
commit 32b41ac21f
2 changed files with 6 additions and 12 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -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;

17
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
View File

@ -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);
}