From: Christian König Date: Mon, 4 Feb 2019 14:00:34 +0000 (+0100) Subject: drm/amdgpu: allow huge invalid mappings on GMC8 X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8ce1f7e7307bd99cc80703b22e7df6746d5f4ae8;p=linux.git drm/amdgpu: allow huge invalid mappings on GMC8 Only GMC9 supports true huge pages, but we can still free invalid mappings on GMC8. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Acked-by: Huang Rui Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 045da0e5691c3..1b5a2b29c95b5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -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))