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-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index bc4b22c6fc08..06f24322e7c3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -878,13 +878,13 @@ static void amdgpu_vm_frag_ptes(struct amdgpu_pte_update_params *params,
* allocation size to the fragment size.
*/
- const uint64_t frag_align = 1 << AMDGPU_LOG2_PAGES_PER_FRAG;
+ /* SI and newer are optimized for 64KB */
+ uint64_t frag_flags = AMDGPU_PTE_FRAG(AMDGPU_LOG2_PAGES_PER_FRAG);
+ uint64_t frag_align = 1 << AMDGPU_LOG2_PAGES_PER_FRAG;
uint64_t frag_start = ALIGN(start, frag_align);
uint64_t frag_end = end & ~(frag_align - 1);
- uint32_t frag;
-
/* system pages are non continuously */
if (params->src || !(flags & AMDGPU_PTE_VALID) ||
(frag_start >= frag_end)) {
@@ -893,10 +893,6 @@ static void amdgpu_vm_frag_ptes(struct amdgpu_pte_update_params *params,
return;
}
- /* use more than 64KB fragment size if possible */
- frag = lower_32_bits(frag_start | frag_end);
- frag = likely(frag) ? __ffs(frag) : 31;
-
/* handle the 4K area at the beginning */
if (start != frag_start) {
amdgpu_vm_update_ptes(params, vm, start, frag_start,
@@ -906,7 +902,7 @@ static void amdgpu_vm_frag_ptes(struct amdgpu_pte_update_params *params,
/* handle the area in the middle */
amdgpu_vm_update_ptes(params, vm, frag_start, frag_end, dst,
- flags | AMDGPU_PTE_FRAG(frag));
+ flags | frag_flags);
/* handle the 4K area at the end */
if (frag_end != end) {