1/*
2 * Copyright 2021 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_IMU_H__
25#define __AMDGPU_IMU_H__
26
27enum imu_work_mode {
28 DEBUG_MODE,
29 MISSION_MODE
30};
31
32struct amdgpu_imu_funcs {
33 int (*init_microcode)(struct amdgpu_device *adev);
34 int (*load_microcode)(struct amdgpu_device *adev);
35 void (*setup_imu)(struct amdgpu_device *adev);
36 int (*start_imu)(struct amdgpu_device *adev);
37 void (*program_rlc_ram)(struct amdgpu_device *adev);
38 int (*wait_for_reset_status)(struct amdgpu_device *adev);
39};
40
41struct imu_rlc_ram_golden {
42 u32 hwip;
43 u32 instance;
44 u32 segment;
45 u32 reg;
46 u32 data;
47 u32 addr_mask;
48};
49
50#define IMU_RLC_RAM_GOLDEN_VALUE(ip, inst, reg, data, addr_mask) \
51 { ip##_HWIP, inst, reg##_BASE_IDX, reg, data, addr_mask }
52
53struct amdgpu_imu {
54 const struct amdgpu_imu_funcs *funcs;
55 enum imu_work_mode mode;
56};
57
58#endif
59

source code of linux/drivers/gpu/drm/amd/amdgpu/amdgpu_imu.h