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drm/amdgpu: Correct dGPU MTYPE settings for gfx943

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Revert temporary dGPU VRAM MTYPE setting and align with expected
coherency protocol.

Signed-off-by: Graham Sider <Graham.Sider@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Graham Sider 2023-01-05 10:58:07 -05:00 committed by Alex Deucher
parent 30b52995c2
commit d839a158b2
2 changed files with 7 additions and 16 deletions
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15
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
View file

@ -1238,17 +1238,12 @@ static void gmc_v9_0_get_coherence_flags(struct amdgpu_device *adev,
mtype = MTYPE_RW;
} else {
/* dGPU */
/*
if ((mem->alloc_flags & KFD_IOC_ALLOC_MEM_FLAGS_VRAM) &&
bo_adev == adev)
mapping_flags |= AMDGPU_VM_MTYPE_RW;
if (is_vram && bo_adev == adev)
mtype = MTYPE_RW;
else if (is_vram)
mtype = MTYPE_NC;
else
*/
/* Temporarily comment out above lines and use MTYPE_NC
* on both VRAM and system memory access until
* MTYPE_RW can properly work on VRAM access
*/
mtype = MTYPE_NC;
mtype = MTYPE_UC;
}
break;

8
drivers/gpu/drm/amd/amdkfd/kfd_svm.c
View file

@ -1198,13 +1198,9 @@ svm_range_get_pte_flags(struct kfd_node *node,
if (uncached) {
mapping_flags |= AMDGPU_VM_MTYPE_UC;
} else if (domain == SVM_RANGE_VRAM_DOMAIN) {
/* local HBM region close to partition with a workaround
* for Endpoint systems.
*/
/* local HBM region close to partition */
if (bo_node == node)
mapping_flags |=
(node->adev->flags & AMD_IS_APU) ?
AMDGPU_VM_MTYPE_RW : AMDGPU_VM_MTYPE_NC;
mapping_flags |= AMDGPU_VM_MTYPE_RW;
/* local HBM region far from partition or remote XGMI GPU */
else if (svm_nodes_in_same_hive(bo_node, node))
mapping_flags |= AMDGPU_VM_MTYPE_NC;