1/*
2 * Copyright 2022 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 "smuio_v13_0_3.h"
25#include "soc15_common.h"
26#include "smuio/smuio_13_0_3_offset.h"
27#include "smuio/smuio_13_0_3_sh_mask.h"
28
29#define PKG_TYPE_MASK 0x00000003L
30
31/**
32 * smuio_v13_0_3_get_die_id - query die id from FCH.
33 *
34 * @adev: amdgpu device pointer
35 *
36 * Returns die id
37 */
38static u32 smuio_v13_0_3_get_die_id(struct amdgpu_device *adev)
39{
40 u32 data, die_id;
41
42 data = RREG32_SOC15(SMUIO, 0, regSMUIO_MCM_CONFIG);
43 die_id = REG_GET_FIELD(data, SMUIO_MCM_CONFIG, DIE_ID);
44
45 return die_id;
46}
47
48/**
49 * smuio_v13_0_3_get_socket_id - query socket id from FCH
50 *
51 * @adev: amdgpu device pointer
52 *
53 * Returns socket id
54 */
55static u32 smuio_v13_0_3_get_socket_id(struct amdgpu_device *adev)
56{
57 u32 data, socket_id;
58
59 data = RREG32_SOC15(SMUIO, 0, regSMUIO_MCM_CONFIG);
60 socket_id = REG_GET_FIELD(data, SMUIO_MCM_CONFIG, SOCKET_ID);
61
62 return socket_id;
63}
64
65/**
66 * smuio_v13_0_3_get_pkg_type - query package type set by MP1/bootcode
67 *
68 * @adev: amdgpu device pointer
69 *
70 * Returns package type
71 */
72
73static enum amdgpu_pkg_type smuio_v13_0_3_get_pkg_type(struct amdgpu_device *adev)
74{
75 enum amdgpu_pkg_type pkg_type;
76 u32 data;
77
78 data = RREG32_SOC15(SMUIO, 0, regSMUIO_MCM_CONFIG);
79 data = REG_GET_FIELD(data, SMUIO_MCM_CONFIG, PKG_TYPE);
80 /* pkg_type[4:0]
81 *
82 * bit 1 == 1 APU form factor
83 *
84 * b0100 - b1111 - Reserved
85 */
86 switch (data & PKG_TYPE_MASK) {
87 case 0x0:
88 pkg_type = AMDGPU_PKG_TYPE_CEM;
89 break;
90 case 0x1:
91 pkg_type = AMDGPU_PKG_TYPE_OAM;
92 break;
93 case 0x2:
94 pkg_type = AMDGPU_PKG_TYPE_APU;
95 break;
96 default:
97 pkg_type = AMDGPU_PKG_TYPE_UNKNOWN;
98 break;
99 }
100
101 return pkg_type;
102}
103
104
105const struct amdgpu_smuio_funcs smuio_v13_0_3_funcs = {
106 .get_die_id = smuio_v13_0_3_get_die_id,
107 .get_socket_id = smuio_v13_0_3_get_socket_id,
108 .get_pkg_type = smuio_v13_0_3_get_pkg_type,
109};
110

source code of linux/drivers/gpu/drm/amd/amdgpu/smuio_v13_0_3.c