From: Mukul Joshi Date: Wed, 16 Jul 2025 16:42:40 +0000 (-0400) Subject: drm/amdkfd: Override KFD SVM mappings for GFX 12.1 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1ded9071c1b1ac2712420009710256bf95e90a80;p=thirdparty%2Fkernel%2Flinux.git drm/amdkfd: Override KFD SVM mappings for GFX 12.1 Override the local MTYPE mappings in KFD SVM code with mtype_local modprobe param for GFX 12.1. Signed-off-by: Mukul Joshi Reviewed-by: Alex Sierra Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c index 3235774f3b64..1ed08388d364 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c @@ -1309,9 +1309,11 @@ svm_range_get_pte_flags(struct kfd_node *node, struct amdgpu_vm *vm, case IP_VERSION(12, 1, 0): snoop = true; if (domain == SVM_RANGE_VRAM_DOMAIN) { + mtype_local = amdgpu_mtype_local == 1 ? AMDGPU_VM_MTYPE_NC : + AMDGPU_VM_MTYPE_RW; /* local HBM */ if (bo_node->adev == node->adev) - mapping_flags |= AMDGPU_VM_MTYPE_RW; + mapping_flags |= mtype_local; /* Remote GPU memory */ else mapping_flags |= ext_coherent ? AMDGPU_VM_MTYPE_UC :