diff options
| author | David Yat Sin <David.YatSin@amd.com> | 2025-06-19 17:51:13 +0000 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-06-30 11:53:38 -0400 |
| commit | 5d14fdab4778c29cfd39e62c3ce84d232b4a7d8c (patch) | |
| tree | d129406803fbbff1725e719dd48cf4ff5fd4f318 | |
| parent | 61feed0baa1a0d094af0e07e968b1e6e875f07d0 (diff) | |
amdkfd: MTYPE_UC for ext-coherent system memory
Set memory mtype to UC host memory when ext-coherent
flag is set and memory is registered as a SVM allocation.
Reviewed-by: Amber Lin <Amber.Lin@amd.com>
Signed-off-by: David Yat Sin <David.YatSin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c index 865dca2547de..7763e4742080 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c @@ -1278,7 +1278,7 @@ svm_range_get_pte_flags(struct kfd_node *node, mapping_flags |= ext_coherent ? AMDGPU_VM_MTYPE_UC : AMDGPU_VM_MTYPE_NC; /* system memory accessed by the dGPU */ } else { - if (gc_ip_version < IP_VERSION(9, 5, 0)) + if (gc_ip_version < IP_VERSION(9, 5, 0) || ext_coherent) mapping_flags |= AMDGPU_VM_MTYPE_UC; else mapping_flags |= AMDGPU_VM_MTYPE_NC; |