1 /*
2  * Copyright (C) 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
12  * in all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15  * OR 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) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20  */
21 #ifndef __AMDGPU_MCA_H__
22 #define __AMDGPU_MCA_H__
23 
24 #include "amdgpu_ras.h"
25 
26 #define MCA_MAX_REGS_COUNT	(16)
27 
28 #define MCA_REG_FIELD(x, h, l)			(((x) & GENMASK_ULL(h, l)) >> l)
29 #define MCA_REG__STATUS__VAL(x)			MCA_REG_FIELD(x, 63, 63)
30 #define MCA_REG__STATUS__OVERFLOW(x)		MCA_REG_FIELD(x, 62, 62)
31 #define MCA_REG__STATUS__UC(x)			MCA_REG_FIELD(x, 61, 61)
32 #define MCA_REG__STATUS__EN(x)			MCA_REG_FIELD(x, 60, 60)
33 #define MCA_REG__STATUS__MISCV(x)		MCA_REG_FIELD(x, 59, 59)
34 #define MCA_REG__STATUS__ADDRV(x)		MCA_REG_FIELD(x, 58, 58)
35 #define MCA_REG__STATUS__PCC(x)			MCA_REG_FIELD(x, 57, 57)
36 #define MCA_REG__STATUS__ERRCOREIDVAL(x)	MCA_REG_FIELD(x, 56, 56)
37 #define MCA_REG__STATUS__TCC(x)			MCA_REG_FIELD(x, 55, 55)
38 #define MCA_REG__STATUS__SYNDV(x)		MCA_REG_FIELD(x, 53, 53)
39 #define MCA_REG__STATUS__CECC(x)		MCA_REG_FIELD(x, 46, 46)
40 #define MCA_REG__STATUS__UECC(x)		MCA_REG_FIELD(x, 45, 45)
41 #define MCA_REG__STATUS__DEFERRED(x)		MCA_REG_FIELD(x, 44, 44)
42 #define MCA_REG__STATUS__POISON(x)		MCA_REG_FIELD(x, 43, 43)
43 #define MCA_REG__STATUS__SCRUB(x)		MCA_REG_FIELD(x, 40, 40)
44 #define MCA_REG__STATUS__ERRCOREID(x)		MCA_REG_FIELD(x, 37, 32)
45 #define MCA_REG__STATUS__ADDRLSB(x)		MCA_REG_FIELD(x, 29, 24)
46 #define MCA_REG__STATUS__ERRORCODEEXT(x)	MCA_REG_FIELD(x, 21, 16)
47 #define MCA_REG__STATUS__ERRORCODE(x)		MCA_REG_FIELD(x, 15, 0)
48 
49 #define MCA_REG__MISC0__ERRCNT(x)		MCA_REG_FIELD(x, 43, 32)
50 
51 #define MCA_REG__SYND__ERRORINFORMATION(x)	MCA_REG_FIELD(x, 17, 0)
52 
53 enum amdgpu_mca_ip {
54 	AMDGPU_MCA_IP_UNKNOW = -1,
55 	AMDGPU_MCA_IP_PSP = 0,
56 	AMDGPU_MCA_IP_SDMA,
57 	AMDGPU_MCA_IP_GC,
58 	AMDGPU_MCA_IP_SMU,
59 	AMDGPU_MCA_IP_MP5,
60 	AMDGPU_MCA_IP_UMC,
61 	AMDGPU_MCA_IP_PCS_XGMI,
62 	AMDGPU_MCA_IP_COUNT,
63 };
64 
65 enum amdgpu_mca_error_type {
66 	AMDGPU_MCA_ERROR_TYPE_UE = 0,
67 	AMDGPU_MCA_ERROR_TYPE_CE,
68 	AMDGPU_MCA_ERROR_TYPE_DE,
69 };
70 
71 struct amdgpu_mca_ras_block {
72 	struct amdgpu_ras_block_object ras_block;
73 };
74 
75 struct amdgpu_mca_ras {
76 	struct ras_common_if *ras_if;
77 	struct amdgpu_mca_ras_block *ras;
78 };
79 
80 struct mca_bank_set {
81 	int nr_entries;
82 	struct list_head list;
83 };
84 
85 struct mca_bank_cache {
86 	struct mca_bank_set mca_set;
87 	struct mutex lock;
88 };
89 
90 struct amdgpu_mca {
91 	struct amdgpu_mca_ras mp0;
92 	struct amdgpu_mca_ras mp1;
93 	struct amdgpu_mca_ras mpio;
94 	const struct amdgpu_mca_smu_funcs *mca_funcs;
95 	struct mca_bank_cache mca_caches[AMDGPU_MCA_ERROR_TYPE_DE];
96 	atomic_t ue_update_flag;
97 };
98 
99 enum mca_reg_idx {
100 	MCA_REG_IDX_STATUS		= 1,
101 	MCA_REG_IDX_ADDR		= 2,
102 	MCA_REG_IDX_MISC0		= 3,
103 	MCA_REG_IDX_IPID		= 5,
104 	MCA_REG_IDX_SYND		= 6,
105 	MCA_REG_IDX_COUNT		= 16,
106 };
107 
108 struct mca_bank_info {
109 	int socket_id;
110 	int aid;
111 	int hwid;
112 	int mcatype;
113 };
114 
115 struct mca_bank_entry {
116 	int idx;
117 	enum amdgpu_mca_error_type type;
118 	enum amdgpu_mca_ip ip;
119 	struct mca_bank_info info;
120 	uint64_t regs[MCA_MAX_REGS_COUNT];
121 };
122 
123 struct mca_bank_node {
124 	struct mca_bank_entry entry;
125 	struct list_head node;
126 };
127 
128 struct amdgpu_mca_smu_funcs {
129 	int max_ue_count;
130 	int max_ce_count;
131 	int (*mca_set_debug_mode)(struct amdgpu_device *adev, bool enable);
132 	int (*mca_parse_mca_error_count)(struct amdgpu_device *adev, enum amdgpu_ras_block blk, enum amdgpu_mca_error_type type,
133 					 struct mca_bank_entry *entry, uint32_t *count);
134 	int (*mca_get_valid_mca_count)(struct amdgpu_device *adev, enum amdgpu_mca_error_type type,
135 				       uint32_t *count);
136 	int (*mca_get_mca_entry)(struct amdgpu_device *adev, enum amdgpu_mca_error_type type,
137 				 int idx, struct mca_bank_entry *entry);
138 };
139 
140 void amdgpu_mca_query_correctable_error_count(struct amdgpu_device *adev,
141 					      uint64_t mc_status_addr,
142 					      unsigned long *error_count);
143 
144 void amdgpu_mca_query_uncorrectable_error_count(struct amdgpu_device *adev,
145 						uint64_t mc_status_addr,
146 						unsigned long *error_count);
147 
148 void amdgpu_mca_reset_error_count(struct amdgpu_device *adev,
149 				  uint64_t mc_status_addr);
150 
151 void amdgpu_mca_query_ras_error_count(struct amdgpu_device *adev,
152 				      uint64_t mc_status_addr,
153 				      void *ras_error_status);
154 int amdgpu_mca_mp0_ras_sw_init(struct amdgpu_device *adev);
155 int amdgpu_mca_mp1_ras_sw_init(struct amdgpu_device *adev);
156 int amdgpu_mca_mpio_ras_sw_init(struct amdgpu_device *adev);
157 
158 void amdgpu_mca_smu_init_funcs(struct amdgpu_device *adev, const struct amdgpu_mca_smu_funcs *mca_funcs);
159 int amdgpu_mca_init(struct amdgpu_device *adev);
160 void amdgpu_mca_fini(struct amdgpu_device *adev);
161 int amdgpu_mca_reset(struct amdgpu_device *adev);
162 int amdgpu_mca_smu_set_debug_mode(struct amdgpu_device *adev, bool enable);
163 int amdgpu_mca_smu_get_mca_set_error_count(struct amdgpu_device *adev, enum amdgpu_ras_block blk,
164 					   enum amdgpu_mca_error_type type, uint32_t *total);
165 void amdgpu_mca_smu_debugfs_init(struct amdgpu_device *adev, struct dentry *root);
166 int amdgpu_mca_smu_log_ras_error(struct amdgpu_device *adev, enum amdgpu_ras_block blk, enum amdgpu_mca_error_type type,
167 				 struct ras_err_data *err_data, struct ras_query_context *qctx);
168 
169 #endif
170