1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright 2023 Advanced Micro Devices, Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 * 23 */ 24 25 #ifndef __AMDGPU_SEQ64_H__ 26 #define __AMDGPU_SEQ64_H__ 27 28 #define AMDGPU_SEQ64_SIZE (2ULL << 20) 29 #define AMDGPU_MAX_SEQ64_SLOTS (AMDGPU_SEQ64_SIZE / (sizeof(u64) * 8)) 30 #define AMDGPU_SEQ64_VADDR_OFFSET 0x50000 31 #define AMDGPU_SEQ64_VADDR_START (AMDGPU_VA_RESERVED_SIZE + AMDGPU_SEQ64_VADDR_OFFSET) 32 33 struct amdgpu_seq64 { 34 struct amdgpu_bo *sbo; 35 u32 num_sem; 36 u64 *cpu_base_addr; 37 DECLARE_BITMAP(used, AMDGPU_MAX_SEQ64_SLOTS); 38 }; 39 40 void amdgpu_seq64_fini(struct amdgpu_device *adev); 41 int amdgpu_seq64_init(struct amdgpu_device *adev); 42 int amdgpu_seq64_alloc(struct amdgpu_device *adev, u64 *gpu_addr, u64 **cpu_addr); 43 void amdgpu_seq64_free(struct amdgpu_device *adev, u64 gpu_addr); 44 int amdgpu_seq64_map(struct amdgpu_device *adev, struct amdgpu_vm *vm, 45 struct amdgpu_bo_va **bo_va, u64 seq64_addr, uint32_t size); 46 void amdgpu_seq64_unmap(struct amdgpu_device *adev, struct amdgpu_fpriv *fpriv); 47 48 #endif 49 50