We accidentially set the huge flag on the parent instead of the childs.
This caused some VM faults under memory pressure.
Signed-off-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 352b30409060..dad0e2342df9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1632,13 +1632,6 @@ static int amdgpu_vm_update_ptes(struct
amdgpu_pte_update_params *params,
continue;
}
- /* First check if the entry is already handled */
- if (cursor.pfn < frag_start) {
- cursor.entry->huge = true;
- amdgpu_vm_pt_next(adev, &cursor);
- continue;
- }
-
/* If it isn't already handled it can't be a huge page */
if (cursor.entry->huge) {
/* Add the entry to the relocated list to update it. */
@@ -1701,8 +1694,17 @@ static int amdgpu_vm_update_ptes(struct
amdgpu_pte_update_params *params,
}
} while (frag_start < entry_end);
- if (frag >= shift)
+ if (amdgpu_vm_pt_descendant(adev, &cursor)) {
+ /* Mark all child entries as huge */
+ while (cursor.pfn < frag_start) {
+ cursor.entry->huge = true;
+ amdgpu_vm_pt_next(adev, &cursor);
+ }
+
+ } else if (frag >= shift) {
+ /* or just move on to the next on the same level. */
amdgpu_vm_pt_next(adev, &cursor);
+ }
}
return 0;
--
2.14.1
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