From f8975dd6f067bcd9f130fdf5bf07255bf8802b2a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Timur=20Krist=C3=B3f?= Date: Fri, 28 Aug 2026 13:41:10 +0200 Subject: [PATCH] drm/amdgpu/gmc12: Use AMDGPU_PTE_IS_PTE flag for init_pte_flags on GFX12.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c | 2 ++ 1 file changed, 2 insertions(+) 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);