1/*
2 * Copyright 2019 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#include "amdgpu.h"
24#include "smu7_baco.h"
25#include "tonga_baco.h"
26#include "fiji_baco.h"
27#include "polaris_baco.h"
28#include "ci_baco.h"
29
30#include "bif/bif_5_0_d.h"
31#include "bif/bif_5_0_sh_mask.h"
32
33#include "smu/smu_7_1_2_d.h"
34#include "smu/smu_7_1_2_sh_mask.h"
35
36int smu7_get_bamaco_support(struct pp_hwmgr *hwmgr)
37{
38 struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev);
39 uint32_t reg;
40
41 if (!phm_cap_enabled(caps: hwmgr->platform_descriptor.platformCaps, c: PHM_PlatformCaps_BACO))
42 return 0;
43
44 reg = RREG32(mmCC_BIF_BX_FUSESTRAP0);
45
46 if (reg & CC_BIF_BX_FUSESTRAP0__STRAP_BIF_PX_CAPABLE_MASK)
47 return BACO_SUPPORT;
48
49 return 0;
50}
51
52int smu7_baco_get_state(struct pp_hwmgr *hwmgr, enum BACO_STATE *state)
53{
54 struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev);
55 uint32_t reg;
56
57 reg = RREG32(mmBACO_CNTL);
58
59 if (reg & BACO_CNTL__BACO_MODE_MASK)
60 /* gfx has already entered BACO state */
61 *state = BACO_STATE_IN;
62 else
63 *state = BACO_STATE_OUT;
64 return 0;
65}
66
67int smu7_baco_set_state(struct pp_hwmgr *hwmgr, enum BACO_STATE state)
68{
69 struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev);
70
71 switch (adev->asic_type) {
72 case CHIP_TOPAZ:
73 case CHIP_TONGA:
74 return tonga_baco_set_state(hwmgr, state);
75 case CHIP_FIJI:
76 return fiji_baco_set_state(hwmgr, state);
77 case CHIP_POLARIS10:
78 case CHIP_POLARIS11:
79 case CHIP_POLARIS12:
80 case CHIP_VEGAM:
81 return polaris_baco_set_state(hwmgr, state);
82#ifdef CONFIG_DRM_AMDGPU_CIK
83 case CHIP_BONAIRE:
84 case CHIP_HAWAII:
85 return ci_baco_set_state(hwmgr, state);
86#endif
87 default:
88 return -EINVAL;
89 }
90}
91

source code of linux/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_baco.c