diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_seq64.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_seq64.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_seq64.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_seq64.h new file mode 100644 index 000000000000..2196e72be508 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_seq64.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright 2023 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + */ + +#ifndef __AMDGPU_SEQ64_H__ +#define __AMDGPU_SEQ64_H__ + +#define AMDGPU_SEQ64_SIZE (2ULL << 20) +#define AMDGPU_MAX_SEQ64_SLOTS (AMDGPU_SEQ64_SIZE / (sizeof(u64) * 8)) +#define AMDGPU_SEQ64_VADDR_OFFSET 0x50000 +#define AMDGPU_SEQ64_VADDR_START (AMDGPU_VA_RESERVED_SIZE + AMDGPU_SEQ64_VADDR_OFFSET) + +struct amdgpu_seq64 { + struct amdgpu_bo *sbo; + u32 num_sem; + u64 *cpu_base_addr; + DECLARE_BITMAP(used, AMDGPU_MAX_SEQ64_SLOTS); +}; + +void amdgpu_seq64_fini(struct amdgpu_device *adev); +int amdgpu_seq64_init(struct amdgpu_device *adev); +int amdgpu_seq64_alloc(struct amdgpu_device *adev, u64 *gpu_addr, u64 **cpu_addr); +void amdgpu_seq64_free(struct amdgpu_device *adev, u64 gpu_addr); +int amdgpu_seq64_map(struct amdgpu_device *adev, struct amdgpu_vm *vm, + struct amdgpu_bo_va **bo_va, u64 seq64_addr, uint32_t size); +void amdgpu_seq64_unmap(struct amdgpu_device *adev, struct amdgpu_fpriv *fpriv); + +#endif + |