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| author | Timur Kristóf <timur.kristof@gmail.com> | 2026-08-28 13:41:10 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-09-02 14:59:17 -0400 |
| commit | f8975dd6f067bcd9f130fdf5bf07255bf8802b2a (patch) | |
| tree | f09ea7189dba02bb75e016489562341f82e1221b | |
| parent | 8488318868980f5a72b10b9dab1eb6d09ade2193 (diff) | |
| download | linux-next-f8975dd6f067bcd9f130fdf5bf07255bf8802b2a.tar.gz linux-next-f8975dd6f067bcd9f130fdf5bf07255bf8802b2a.zip | |
drm/amdgpu/gmc12: Use AMDGPU_PTE_IS_PTE flag for init_pte_flags on GFX12.0
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>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c index 988dc74642b6..18511e7995ef 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c @@ -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); |