amd/amdgpu/amdgpu_csa.h

0001 /*
0002  * Copyright 2016 Advanced Micro Devices, Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Author: Monk.liu@amd.com
0023  */
0024
0025 #ifndef AMDGPU_CSA_MANAGER_H
0026 #define AMDGPU_CSA_MANAGER_H
0027
0028 #define AMDGPU_CSA_SIZE     (128 * 1024)
0029
0030 uint32_t amdgpu_get_total_csa_size(struct amdgpu_device *adev);
0031 uint64_t amdgpu_csa_vaddr(struct amdgpu_device *adev);
0032 int amdgpu_allocate_static_csa(struct amdgpu_device *adev, struct amdgpu_bo **bo,
0033                 u32 domain, uint32_t size);
0034 int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm,
0035               struct amdgpu_bo *bo, struct amdgpu_bo_va **bo_va,
0036               uint64_t csa_addr, uint32_t size);
0037 void amdgpu_free_static_csa(struct amdgpu_bo **bo);
0038
0039 #endif