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drm/amdgpu: allow huge invalid mappings on GMC8

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Only GMC9 supports true huge pages, but we can still free invalid mappings
on GMC8.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2019-02-04 15:00:34 +01:00 committed by Alex Deucher
parent adc7bfe50b
commit 8ce1f7e730
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@ -1636,7 +1636,8 @@ static int amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params,
shift = amdgpu_vm_level_shift(adev, cursor.level);
parent_shift = amdgpu_vm_level_shift(adev, cursor.level - 1);
if (adev->asic_type < CHIP_VEGA10) {
if (adev->asic_type < CHIP_VEGA10 &&
(flags & AMDGPU_PTE_VALID)) {
/* No huge page support before GMC v9 */
if (cursor.level != AMDGPU_VM_PTB) {
if (!amdgpu_vm_pt_descendant(adev, &cursor))