Reviewed-by: Chunming Zhou <[email protected]>
On 2017年12月09日 00:41, Christian König wrote:
We can do this with a simple mask as well.
Signed-off-by: Christian König <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 796375484f6f..400a00fababd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1288,11 +1288,11 @@ void amdgpu_vm_get_entry(struct
amdgpu_pte_update_params *p, uint64_t addr,
*parent = NULL;
*entry = &p->vm->root;
while ((*entry)->entries) {
- unsigned idx = addr >> amdgpu_vm_level_shift(p->adev, level++);
+ unsigned shift = amdgpu_vm_level_shift(p->adev, level++);
- idx %= amdgpu_bo_size((*entry)->base.bo) / 8;
*parent = *entry;
- *entry = &(*entry)->entries[idx];
+ *entry = &(*entry)->entries[addr >> shift];
+ addr &= (1ULL << shift) - 1;
}
if (level != p->adev->vm_manager.num_level)
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