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      1 /*	$NetBSD: amdgpu_csa.h,v 1.2 2021/12/18 23:44:58 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2016 Advanced Micro Devices, Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  * Author: Monk.liu (at) amd.com
     25  */
     26 
     27 #ifndef AMDGPU_CSA_MANAGER_H
     28 #define AMDGPU_CSA_MANAGER_H
     29 
     30 #define AMDGPU_CSA_SIZE		(128 * 1024)
     31 
     32 uint32_t amdgpu_get_total_csa_size(struct amdgpu_device *adev);
     33 uint64_t amdgpu_csa_vaddr(struct amdgpu_device *adev);
     34 int amdgpu_allocate_static_csa(struct amdgpu_device *adev, struct amdgpu_bo **bo,
     35 				u32 domain, uint32_t size);
     36 int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm,
     37 			  struct amdgpu_bo *bo, struct amdgpu_bo_va **bo_va,
     38 			  uint64_t csa_addr, uint32_t size);
     39 void amdgpu_free_static_csa(struct amdgpu_bo **bo);
     40 
     41 #endif
     42