drivers/gpu/drm/amd/amdgpu/amdgpu_csa.h

   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 void amdgpu_free_static_csa(struct amdgpu_bo **bo);
  38
  39 #endif