diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c new file mode 100644 index 000000000000..36058feac64f --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -0,0 +1,47 @@ +/* + * Copyright 2018 Advanced Micro Devices, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + */ + +#include "amdgpu.h" + +/** + * amdgpu_gmc_pd_addr - return the address of the root directory + * + */ +uint64_t amdgpu_gmc_pd_addr(struct amdgpu_bo *bo) +{ + struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); + uint64_t pd_addr; + + pd_addr = amdgpu_bo_gpu_offset(bo); + /* TODO: move that into ASIC specific code */ + if (adev->asic_type >= CHIP_VEGA10) { + uint64_t flags = AMDGPU_PTE_VALID; + + amdgpu_gmc_get_vm_pde(adev, -1, &pd_addr, &flags); + pd_addr |= flags; + } + return pd_addr; +} |