1 /* 2 * Copyright 2022 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 */ 23 24 #ifndef __AMDGPU_LSDMA_H__ 25 #define __AMDGPU_LSDMA_H__ 26 27 struct amdgpu_lsdma { 28 const struct amdgpu_lsdma_funcs *funcs; 29 }; 30 31 struct amdgpu_lsdma_funcs { 32 int (*copy_mem)(struct amdgpu_device *adev, uint64_t src_addr, 33 uint64_t dst_addr, uint64_t size); 34 int (*fill_mem)(struct amdgpu_device *adev, uint64_t dst_addr, 35 uint32_t data, uint64_t size); 36 void (*update_memory_power_gating)(struct amdgpu_device *adev, bool enable); 37 }; 38 39 int amdgpu_lsdma_copy_mem(struct amdgpu_device *adev, uint64_t src_addr, 40 uint64_t dst_addr, uint64_t mem_size); 41 int amdgpu_lsdma_fill_mem(struct amdgpu_device *adev, uint64_t dst_addr, 42 uint32_t data, uint64_t mem_size); 43 int amdgpu_lsdma_wait_for(struct amdgpu_device *adev, uint32_t reg_index, 44 uint32_t reg_val, uint32_t mask); 45 46 #endif 47