[PATCH 13/14] drm/amd/amdkfd: Add GFX12 PTE flag to SVM get PTE function

Alex Deucher alexander.deucher at amd.com
Mon Apr 29 14:57:25 UTC 2024


From: Sreekant Somasekharan <sreekant.somasekharan at amd.com>

Add new GFX12 PTE flag AMDGPU_PTE_IS_PTE to svm_range_get_pte_flags
function. This resolves the issues related to SVM enablement in GFX12.

Signed-off-by: Sreekant Somasekharan <sreekant.somasekharan at amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
index 386875e6eb96b..fc5ede17f7c22 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
@@ -1263,6 +1263,8 @@ svm_range_get_pte_flags(struct kfd_node *node,
 	pte_flags = AMDGPU_PTE_VALID;
 	pte_flags |= (domain == SVM_RANGE_VRAM_DOMAIN) ? 0 : AMDGPU_PTE_SYSTEM;
 	pte_flags |= snoop ? AMDGPU_PTE_SNOOPED : 0;
+	if (KFD_GC_VERSION(node) >= IP_VERSION(12, 0, 0))
+		pte_flags |= AMDGPU_PTE_IS_PTE;
 
 	pte_flags |= amdgpu_gem_va_map_flags(node->adev, mapping_flags);
 	return pte_flags;
-- 
2.44.0



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