1 /*
2  * Copyright 2016 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Author: Monk.liu@amd.com
23  */
24 
25 #ifndef AMDGPU_CSA_MANAGER_H
26 #define AMDGPU_CSA_MANAGER_H
27 
28 #define AMDGPU_CSA_SIZE		(128 * 1024)
29 
30 uint32_t amdgpu_get_total_csa_size(struct amdgpu_device *adev);
31 uint64_t amdgpu_csa_vaddr(struct amdgpu_device *adev);
32 int amdgpu_allocate_static_csa(struct amdgpu_device *adev, struct amdgpu_bo **bo,
33 				u32 domain, uint32_t size);
34 int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm,
35 			  struct amdgpu_bo *bo, struct amdgpu_bo_va **bo_va,
36 			  uint64_t csa_addr, uint32_t size);
37 int amdgpu_unmap_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm,
38 			    struct amdgpu_bo *bo, struct amdgpu_bo_va *bo_va,
39 			    uint64_t csa_addr);
40 void amdgpu_free_static_csa(struct amdgpu_bo **bo);
41 
42 #endif
43