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drm/amdgpu: OR init_pte_flags into invalid leaf PTE updates

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Invalid leaf clears that only set AMDGPU_PTE_EXECUTABLE match the old
GMC9 fault-priority workaround but omit adev->gmc.init_pte_flags.
On GFX12 that includes AMDGPU_PTE_IS_PTE; without it, some cleared
PTEs can fault as no-retry and bypass the SVM/XNACK handler when a
VA is reused after a BO unmap.

Apply init_pte_flags in amdgpu_vm_pte_update_flags() alongside
EXECUTABLE so range-driven clears (e.g. amdgpu_vm_clear_freed) match
amdgpu_vm_pt_clear() for leaf templates.

Signed-off-by: Siwei He <siwei.he@amd.com>
Reviewed-by: Philip Yang <philip.yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 9d47b2c36b9a6c6b844c33cab407a5d7ad102234)
This commit is contained in:
Siwei He
2026-04-14 14:46:54 -04:00
committed by Alex Deucher
parent 0e48f27d13
commit 778bf584f2
1 changed files with 5 additions and 2 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
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@@ -693,8 +693,11 @@ static void amdgpu_vm_pte_update_flags(struct amdgpu_vm_update_params *params,
!(flags & AMDGPU_PTE_VALID) &&
!(flags & AMDGPU_PTE_PRT_FLAG(params->adev))) {
/* Workaround for fault priority problem on GMC9 */
flags |= AMDGPU_PTE_EXECUTABLE;
/* Workaround for fault priority problem on GMC9 and GFX12,
* EXECUTABLE for GMC9 fault priority and init_pte_flags
* (e.g. AMDGPU_PTE_IS_PTE on GFX12)
*/
flags |= AMDGPU_PTE_EXECUTABLE | adev->gmc.init_pte_flags;
}
/*