1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Common codes for both the skx_edac driver and Intel 10nm server EDAC driver.
* Originally split out from the skx_edac driver.
*
* Copyright (c) 2018, Intel Corporation.
*/
#ifndef _SKX_COMM_EDAC_H
#define _SKX_COMM_EDAC_H
#include <linux/bits.h>
#define MSG_SIZE 1024
/*
* Debug macros
*/
#define skx_printk(level, fmt, arg...) \
edac_printk(level, "skx", fmt, ##arg)
#define skx_mc_printk(mci, level, fmt, arg...) \
edac_mc_chipset_printk(mci, level, "skx", fmt, ##arg)
/*
* Get a bit field at register value <v>, from bit <lo> to bit <hi>
*/
#define GET_BITFIELD(v, lo, hi) \
(((v) & GENMASK_ULL((hi), (lo))) >> (lo))
#define SKX_NUM_IMC 2 /* Memory controllers per socket */
#define SKX_NUM_CHANNELS 3 /* Channels per memory controller */
#define SKX_NUM_DIMMS 2 /* Max DIMMS per channel */
#define I10NM_NUM_IMC 4
#define I10NM_NUM_CHANNELS 2
#define I10NM_NUM_DIMMS 2
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define NUM_IMC MAX(SKX_NUM_IMC, I10NM_NUM_IMC)
#define NUM_CHANNELS MAX(SKX_NUM_CHANNELS, I10NM_NUM_CHANNELS)
#define NUM_DIMMS MAX(SKX_NUM_DIMMS, I10NM_NUM_DIMMS)
#define IS_DIMM_PRESENT(r) GET_BITFIELD(r, 15, 15)
#define IS_NVDIMM_PRESENT(r, i) GET_BITFIELD(r, i, i)
/*
* Each cpu socket contains some pci devices that provide global
* information, and also some that are local to each of the two
* memory controllers on the die.
*/
struct skx_dev {
struct list_head list;
u8 bus[4];
int seg;
struct pci_dev *sad_all;
struct pci_dev *util_all;
struct pci_dev *uracu; /* for i10nm CPU */
u32 mcroute;
struct skx_imc {
struct mem_ctl_info *mci;
struct pci_dev *mdev; /* for i10nm CPU */
void __iomem *mbase; /* for i10nm CPU */
int chan_mmio_sz; /* for i10nm CPU */
u8 mc; /* system wide mc# */
u8 lmc; /* socket relative mc# */
u8 src_id, node_id;
struct skx_channel {
struct pci_dev *cdev;
struct pci_dev *edev;
struct skx_dimm {
u8 close_pg;
u8 bank_xor_enable;
u8 fine_grain_bank;
u8 rowbits;
u8 colbits;
} dimms[NUM_DIMMS];
} chan[NUM_CHANNELS];
} imc[NUM_IMC];
};
struct skx_pvt {
struct skx_imc *imc;
};
enum type {
SKX,
I10NM,
SPR
};
enum {
INDEX_SOCKET,
INDEX_MEMCTRL,
INDEX_CHANNEL,
INDEX_DIMM,
INDEX_NM_FIRST,
INDEX_NM_MEMCTRL = INDEX_NM_FIRST,
INDEX_NM_CHANNEL,
INDEX_NM_DIMM,
INDEX_MAX
};
#define BIT_NM_MEMCTRL BIT_ULL(INDEX_NM_MEMCTRL)
#define BIT_NM_CHANNEL BIT_ULL(INDEX_NM_CHANNEL)
#define BIT_NM_DIMM BIT_ULL(INDEX_NM_DIMM)
struct decoded_addr {
struct skx_dev *dev;
u64 addr;
int socket;
int imc;
int channel;
u64 chan_addr;
int sktways;
int chanways;
int dimm;
int rank;
int channel_rank;
u64 rank_address;
int row;
int column;
int bank_address;
int bank_group;
};
struct res_config {
enum type type;
/* Configuration agent device ID */
unsigned int decs_did;
/* Default bus number configuration register offset */
int busno_cfg_offset;
/* Per DDR channel memory-mapped I/O size */
int ddr_chan_mmio_sz;
bool support_ddr5;
/* SAD device number and function number */
unsigned int sad_all_devfn;
int sad_all_offset;
};
typedef int (*get_dimm_config_f)(struct mem_ctl_info *mci,
struct res_config *cfg);
typedef bool (*skx_decode_f)(struct decoded_addr *res);
typedef void (*skx_show_retry_log_f)(struct decoded_addr *res, char *msg, int len);
int __init skx_adxl_get(void);
void __exit skx_adxl_put(void);
void skx_set_decode(skx_decode_f decode, skx_show_retry_log_f show_retry_log);
void skx_set_mem_cfg(bool mem_cfg_2lm);
int skx_get_src_id(struct skx_dev *d, int off, u8 *id);
int skx_get_node_id(struct skx_dev *d, u8 *id);
int skx_get_all_bus_mappings(struct res_config *cfg, struct list_head **list);
int skx_get_hi_lo(unsigned int did, int off[], u64 *tolm, u64 *tohm);
int skx_get_dimm_info(u32 mtr, u32 mcmtr, u32 amap, struct dimm_info *dimm,
struct skx_imc *imc, int chan, int dimmno,
struct res_config *cfg);
int skx_get_nvdimm_info(struct dimm_info *dimm, struct skx_imc *imc,
int chan, int dimmno, const char *mod_str);
int skx_register_mci(struct skx_imc *imc, struct pci_dev *pdev,
const char *ctl_name, const char *mod_str,
get_dimm_config_f get_dimm_config,
struct res_config *cfg);
int skx_mce_check_error(struct notifier_block *nb, unsigned long val,
void *data);
void skx_remove(void);
#endif /* _SKX_COMM_EDAC_H */
|
