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drm/amdgpu/gmc12: Use AMDGPU_PTE_IS_PTE flag for init_pte_flags on GFX12.0

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This flag seems to work around a "fault priority problem"
and is necessary for handling faults on GFX12.
The kernel seems unable to mitigate retry faults on GFX12
without this flag.

For reference see:
amdgpu_vm_pte_update_flags() that explains the problem
svm_range_get_pte_flags() that uses the flag on GFX12

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Timur Kristóf 2026-08-28 13:41:10 +02:00 committed by Alex Deucher
parent 8488318868
commit f8975dd6f0
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
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@ -644,6 +644,8 @@ static int gmc_v12_0_early_init(struct amdgpu_ip_block *ip_block)
adev->gmc.xgmi.connected_to_cpu =
adev->smuio.funcs->is_host_gpu_xgmi_supported(adev);
adev->gmc.init_pte_flags = AMDGPU_PTE_IS_PTE;
switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {
case IP_VERSION(12, 1, 0):
gmc_v12_1_set_gmc_funcs(adev);