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drm/amdgpu: Revert "add spin lock to protect freed list in vm (v3)"

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Not needed any more because we need to protect the elements on the list anyway.

This reverts commit dae6ecf9e6c9b677e577826c3ac665c6dd9c490b.

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 17:52:01 +01:00 committed by Alex Deucher
parent b5a5ec5504
commit e17841b975
1 changed files with 3 additions and 13 deletions
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16
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@ -971,22 +971,18 @@ int amdgpu_vm_clear_freed(struct amdgpu_device *adev,
struct amdgpu_bo_va_mapping *mapping;
int r;
spin_lock(&vm->freed_lock);
while (!list_empty(&vm->freed)) {
mapping = list_first_entry(&vm->freed,
struct amdgpu_bo_va_mapping, list);
list_del(&mapping->list);
spin_unlock(&vm->freed_lock);
r = amdgpu_vm_bo_split_mapping(adev, NULL, 0, vm, mapping,
0, NULL);
kfree(mapping);
if (r)
return r;
spin_lock(&vm->freed_lock);
}
spin_unlock(&vm->freed_lock);
return 0;
}
@ -1252,13 +1248,10 @@ int amdgpu_vm_bo_unmap(struct amdgpu_device *adev,
spin_unlock(&vm->it_lock);
trace_amdgpu_vm_bo_unmap(bo_va, mapping);
if (valid) {
spin_lock(&vm->freed_lock);
if (valid)
list_add(&mapping->list, &vm->freed);
spin_unlock(&vm->freed_lock);
} else {
else
kfree(mapping);
}
return 0;
}
@ -1291,9 +1284,7 @@ void amdgpu_vm_bo_rmv(struct amdgpu_device *adev,
interval_tree_remove(&mapping->it, &vm->va);
spin_unlock(&vm->it_lock);
trace_amdgpu_vm_bo_unmap(bo_va, mapping);
spin_lock(&vm->freed_lock);
list_add(&mapping->list, &vm->freed);
spin_unlock(&vm->freed_lock);
}
list_for_each_entry_safe(mapping, next, &bo_va->invalids, list) {
list_del(&mapping->list);
@ -1357,7 +1348,6 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
INIT_LIST_HEAD(&vm->cleared);
INIT_LIST_HEAD(&vm->freed);
spin_lock_init(&vm->it_lock);
spin_lock_init(&vm->freed_lock);
pd_size = amdgpu_vm_directory_size(adev);
pd_entries = amdgpu_vm_num_pdes(adev);