1 /*
2  * Copyright 2014 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 /* amdgpu_amdkfd.h defines the private interface between amdgpu and amdkfd. */
24 
25 #ifndef AMDGPU_AMDKFD_H_INCLUDED
26 #define AMDGPU_AMDKFD_H_INCLUDED
27 
28 #include <linux/types.h>
29 #include <kgd_kfd_interface.h>
30 
31 struct amdgpu_device;
32 
33 struct kgd_mem {
34 	struct amdgpu_bo *bo;
35 	uint64_t gpu_addr;
36 	void *cpu_ptr;
37 };
38 
39 int amdgpu_amdkfd_init(void);
40 void amdgpu_amdkfd_fini(void);
41 
42 bool amdgpu_amdkfd_load_interface(struct amdgpu_device *rdev);
43 
44 void amdgpu_amdkfd_suspend(struct amdgpu_device *rdev);
45 int amdgpu_amdkfd_resume(struct amdgpu_device *rdev);
46 void amdgpu_amdkfd_interrupt(struct amdgpu_device *rdev,
47 			const void *ih_ring_entry);
48 void amdgpu_amdkfd_device_probe(struct amdgpu_device *rdev);
49 void amdgpu_amdkfd_device_init(struct amdgpu_device *rdev);
50 void amdgpu_amdkfd_device_fini(struct amdgpu_device *rdev);
51 
52 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void);
53 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void);
54 
55 /* Shared API */
56 int alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
57 			void **mem_obj, uint64_t *gpu_addr,
58 			void **cpu_ptr);
59 void free_gtt_mem(struct kgd_dev *kgd, void *mem_obj);
60 uint64_t get_vmem_size(struct kgd_dev *kgd);
61 uint64_t get_gpu_clock_counter(struct kgd_dev *kgd);
62 
63 uint32_t get_max_engine_clock_in_mhz(struct kgd_dev *kgd);
64 
65 #endif /* AMDGPU_AMDKFD_H_INCLUDED */
66