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eebf11a0 MCC |
1 | /* Intel Sandy Bridge -EN/-EP/-EX Memory Controller kernel module |
2 | * | |
3 | * This driver supports the memory controllers found on the Intel | |
4 | * processor family Sandy Bridge. | |
5 | * | |
6 | * This file may be distributed under the terms of the | |
7 | * GNU General Public License version 2 only. | |
8 | * | |
9 | * Copyright (c) 2011 by: | |
37e59f87 | 10 | * Mauro Carvalho Chehab |
eebf11a0 MCC |
11 | */ |
12 | ||
13 | #include <linux/module.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/pci.h> | |
16 | #include <linux/pci_ids.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/delay.h> | |
19 | #include <linux/edac.h> | |
20 | #include <linux/mmzone.h> | |
eebf11a0 MCC |
21 | #include <linux/smp.h> |
22 | #include <linux/bitmap.h> | |
5b889e37 | 23 | #include <linux/math64.h> |
eebf11a0 | 24 | #include <asm/processor.h> |
3d78c9af | 25 | #include <asm/mce.h> |
eebf11a0 MCC |
26 | |
27 | #include "edac_core.h" | |
28 | ||
29 | /* Static vars */ | |
30 | static LIST_HEAD(sbridge_edac_list); | |
31 | static DEFINE_MUTEX(sbridge_edac_lock); | |
32 | static int probed; | |
33 | ||
34 | /* | |
35 | * Alter this version for the module when modifications are made | |
36 | */ | |
4d715a80 | 37 | #define SBRIDGE_REVISION " Ver: 1.1.0 " |
eebf11a0 MCC |
38 | #define EDAC_MOD_STR "sbridge_edac" |
39 | ||
40 | /* | |
41 | * Debug macros | |
42 | */ | |
43 | #define sbridge_printk(level, fmt, arg...) \ | |
44 | edac_printk(level, "sbridge", fmt, ##arg) | |
45 | ||
46 | #define sbridge_mc_printk(mci, level, fmt, arg...) \ | |
47 | edac_mc_chipset_printk(mci, level, "sbridge", fmt, ##arg) | |
48 | ||
49 | /* | |
50 | * Get a bit field at register value <v>, from bit <lo> to bit <hi> | |
51 | */ | |
52 | #define GET_BITFIELD(v, lo, hi) \ | |
10ef6b0d | 53 | (((v) & GENMASK_ULL(hi, lo)) >> (lo)) |
eebf11a0 | 54 | |
eebf11a0 | 55 | /* Devices 12 Function 6, Offsets 0x80 to 0xcc */ |
464f1d82 | 56 | static const u32 sbridge_dram_rule[] = { |
eebf11a0 MCC |
57 | 0x80, 0x88, 0x90, 0x98, 0xa0, |
58 | 0xa8, 0xb0, 0xb8, 0xc0, 0xc8, | |
59 | }; | |
eebf11a0 | 60 | |
4d715a80 AR |
61 | static const u32 ibridge_dram_rule[] = { |
62 | 0x60, 0x68, 0x70, 0x78, 0x80, | |
63 | 0x88, 0x90, 0x98, 0xa0, 0xa8, | |
64 | 0xb0, 0xb8, 0xc0, 0xc8, 0xd0, | |
65 | 0xd8, 0xe0, 0xe8, 0xf0, 0xf8, | |
66 | }; | |
eebf11a0 MCC |
67 | |
68 | #define SAD_LIMIT(reg) ((GET_BITFIELD(reg, 6, 25) << 26) | 0x3ffffff) | |
69 | #define DRAM_ATTR(reg) GET_BITFIELD(reg, 2, 3) | |
70 | #define INTERLEAVE_MODE(reg) GET_BITFIELD(reg, 1, 1) | |
71 | #define DRAM_RULE_ENABLE(reg) GET_BITFIELD(reg, 0, 0) | |
50d1bb93 | 72 | #define A7MODE(reg) GET_BITFIELD(reg, 26, 26) |
eebf11a0 MCC |
73 | |
74 | static char *get_dram_attr(u32 reg) | |
75 | { | |
76 | switch(DRAM_ATTR(reg)) { | |
77 | case 0: | |
78 | return "DRAM"; | |
79 | case 1: | |
80 | return "MMCFG"; | |
81 | case 2: | |
82 | return "NXM"; | |
83 | default: | |
84 | return "unknown"; | |
85 | } | |
86 | } | |
87 | ||
ef1ce51e | 88 | static const u32 sbridge_interleave_list[] = { |
eebf11a0 MCC |
89 | 0x84, 0x8c, 0x94, 0x9c, 0xa4, |
90 | 0xac, 0xb4, 0xbc, 0xc4, 0xcc, | |
91 | }; | |
eebf11a0 | 92 | |
4d715a80 AR |
93 | static const u32 ibridge_interleave_list[] = { |
94 | 0x64, 0x6c, 0x74, 0x7c, 0x84, | |
95 | 0x8c, 0x94, 0x9c, 0xa4, 0xac, | |
96 | 0xb4, 0xbc, 0xc4, 0xcc, 0xd4, | |
97 | 0xdc, 0xe4, 0xec, 0xf4, 0xfc, | |
98 | }; | |
99 | ||
cc311991 AR |
100 | struct interleave_pkg { |
101 | unsigned char start; | |
102 | unsigned char end; | |
103 | }; | |
104 | ||
105 | static const struct interleave_pkg sbridge_interleave_pkg[] = { | |
106 | { 0, 2 }, | |
107 | { 3, 5 }, | |
108 | { 8, 10 }, | |
109 | { 11, 13 }, | |
110 | { 16, 18 }, | |
111 | { 19, 21 }, | |
112 | { 24, 26 }, | |
113 | { 27, 29 }, | |
114 | }; | |
115 | ||
4d715a80 AR |
116 | static const struct interleave_pkg ibridge_interleave_pkg[] = { |
117 | { 0, 3 }, | |
118 | { 4, 7 }, | |
119 | { 8, 11 }, | |
120 | { 12, 15 }, | |
121 | { 16, 19 }, | |
122 | { 20, 23 }, | |
123 | { 24, 27 }, | |
124 | { 28, 31 }, | |
125 | }; | |
126 | ||
cc311991 AR |
127 | static inline int sad_pkg(const struct interleave_pkg *table, u32 reg, |
128 | int interleave) | |
eebf11a0 | 129 | { |
cc311991 AR |
130 | return GET_BITFIELD(reg, table[interleave].start, |
131 | table[interleave].end); | |
eebf11a0 MCC |
132 | } |
133 | ||
134 | /* Devices 12 Function 7 */ | |
135 | ||
136 | #define TOLM 0x80 | |
137 | #define TOHM 0x84 | |
f7cf2a22 | 138 | #define HASWELL_TOLM 0xd0 |
50d1bb93 AR |
139 | #define HASWELL_TOHM_0 0xd4 |
140 | #define HASWELL_TOHM_1 0xd8 | |
eebf11a0 MCC |
141 | |
142 | #define GET_TOLM(reg) ((GET_BITFIELD(reg, 0, 3) << 28) | 0x3ffffff) | |
143 | #define GET_TOHM(reg) ((GET_BITFIELD(reg, 0, 20) << 25) | 0x3ffffff) | |
144 | ||
145 | /* Device 13 Function 6 */ | |
146 | ||
147 | #define SAD_TARGET 0xf0 | |
148 | ||
149 | #define SOURCE_ID(reg) GET_BITFIELD(reg, 9, 11) | |
150 | ||
151 | #define SAD_CONTROL 0xf4 | |
152 | ||
eebf11a0 MCC |
153 | /* Device 14 function 0 */ |
154 | ||
155 | static const u32 tad_dram_rule[] = { | |
156 | 0x40, 0x44, 0x48, 0x4c, | |
157 | 0x50, 0x54, 0x58, 0x5c, | |
158 | 0x60, 0x64, 0x68, 0x6c, | |
159 | }; | |
160 | #define MAX_TAD ARRAY_SIZE(tad_dram_rule) | |
161 | ||
162 | #define TAD_LIMIT(reg) ((GET_BITFIELD(reg, 12, 31) << 26) | 0x3ffffff) | |
163 | #define TAD_SOCK(reg) GET_BITFIELD(reg, 10, 11) | |
164 | #define TAD_CH(reg) GET_BITFIELD(reg, 8, 9) | |
165 | #define TAD_TGT3(reg) GET_BITFIELD(reg, 6, 7) | |
166 | #define TAD_TGT2(reg) GET_BITFIELD(reg, 4, 5) | |
167 | #define TAD_TGT1(reg) GET_BITFIELD(reg, 2, 3) | |
168 | #define TAD_TGT0(reg) GET_BITFIELD(reg, 0, 1) | |
169 | ||
170 | /* Device 15, function 0 */ | |
171 | ||
172 | #define MCMTR 0x7c | |
173 | ||
174 | #define IS_ECC_ENABLED(mcmtr) GET_BITFIELD(mcmtr, 2, 2) | |
175 | #define IS_LOCKSTEP_ENABLED(mcmtr) GET_BITFIELD(mcmtr, 1, 1) | |
176 | #define IS_CLOSE_PG(mcmtr) GET_BITFIELD(mcmtr, 0, 0) | |
177 | ||
178 | /* Device 15, function 1 */ | |
179 | ||
180 | #define RASENABLES 0xac | |
181 | #define IS_MIRROR_ENABLED(reg) GET_BITFIELD(reg, 0, 0) | |
182 | ||
183 | /* Device 15, functions 2-5 */ | |
184 | ||
185 | static const int mtr_regs[] = { | |
186 | 0x80, 0x84, 0x88, | |
187 | }; | |
188 | ||
189 | #define RANK_DISABLE(mtr) GET_BITFIELD(mtr, 16, 19) | |
190 | #define IS_DIMM_PRESENT(mtr) GET_BITFIELD(mtr, 14, 14) | |
191 | #define RANK_CNT_BITS(mtr) GET_BITFIELD(mtr, 12, 13) | |
192 | #define RANK_WIDTH_BITS(mtr) GET_BITFIELD(mtr, 2, 4) | |
193 | #define COL_WIDTH_BITS(mtr) GET_BITFIELD(mtr, 0, 1) | |
194 | ||
195 | static const u32 tad_ch_nilv_offset[] = { | |
196 | 0x90, 0x94, 0x98, 0x9c, | |
197 | 0xa0, 0xa4, 0xa8, 0xac, | |
198 | 0xb0, 0xb4, 0xb8, 0xbc, | |
199 | }; | |
200 | #define CHN_IDX_OFFSET(reg) GET_BITFIELD(reg, 28, 29) | |
201 | #define TAD_OFFSET(reg) (GET_BITFIELD(reg, 6, 25) << 26) | |
202 | ||
203 | static const u32 rir_way_limit[] = { | |
204 | 0x108, 0x10c, 0x110, 0x114, 0x118, | |
205 | }; | |
206 | #define MAX_RIR_RANGES ARRAY_SIZE(rir_way_limit) | |
207 | ||
208 | #define IS_RIR_VALID(reg) GET_BITFIELD(reg, 31, 31) | |
209 | #define RIR_WAY(reg) GET_BITFIELD(reg, 28, 29) | |
eebf11a0 MCC |
210 | |
211 | #define MAX_RIR_WAY 8 | |
212 | ||
213 | static const u32 rir_offset[MAX_RIR_RANGES][MAX_RIR_WAY] = { | |
214 | { 0x120, 0x124, 0x128, 0x12c, 0x130, 0x134, 0x138, 0x13c }, | |
215 | { 0x140, 0x144, 0x148, 0x14c, 0x150, 0x154, 0x158, 0x15c }, | |
216 | { 0x160, 0x164, 0x168, 0x16c, 0x170, 0x174, 0x178, 0x17c }, | |
217 | { 0x180, 0x184, 0x188, 0x18c, 0x190, 0x194, 0x198, 0x19c }, | |
218 | { 0x1a0, 0x1a4, 0x1a8, 0x1ac, 0x1b0, 0x1b4, 0x1b8, 0x1bc }, | |
219 | }; | |
220 | ||
221 | #define RIR_RNK_TGT(reg) GET_BITFIELD(reg, 16, 19) | |
222 | #define RIR_OFFSET(reg) GET_BITFIELD(reg, 2, 14) | |
223 | ||
224 | /* Device 16, functions 2-7 */ | |
225 | ||
226 | /* | |
227 | * FIXME: Implement the error count reads directly | |
228 | */ | |
229 | ||
230 | static const u32 correrrcnt[] = { | |
231 | 0x104, 0x108, 0x10c, 0x110, | |
232 | }; | |
233 | ||
234 | #define RANK_ODD_OV(reg) GET_BITFIELD(reg, 31, 31) | |
235 | #define RANK_ODD_ERR_CNT(reg) GET_BITFIELD(reg, 16, 30) | |
236 | #define RANK_EVEN_OV(reg) GET_BITFIELD(reg, 15, 15) | |
237 | #define RANK_EVEN_ERR_CNT(reg) GET_BITFIELD(reg, 0, 14) | |
238 | ||
239 | static const u32 correrrthrsld[] = { | |
240 | 0x11c, 0x120, 0x124, 0x128, | |
241 | }; | |
242 | ||
243 | #define RANK_ODD_ERR_THRSLD(reg) GET_BITFIELD(reg, 16, 30) | |
244 | #define RANK_EVEN_ERR_THRSLD(reg) GET_BITFIELD(reg, 0, 14) | |
245 | ||
246 | ||
247 | /* Device 17, function 0 */ | |
248 | ||
ef1e8d03 | 249 | #define SB_RANK_CFG_A 0x0328 |
eebf11a0 | 250 | |
4d715a80 | 251 | #define IB_RANK_CFG_A 0x0320 |
eebf11a0 | 252 | |
eebf11a0 MCC |
253 | /* |
254 | * sbridge structs | |
255 | */ | |
256 | ||
351fc4a9 SJ |
257 | #define NUM_CHANNELS 4 |
258 | #define MAX_DIMMS 3 /* Max DIMMS per channel */ | |
259 | #define CHANNEL_UNSPECIFIED 0xf /* Intel IA32 SDM 15-14 */ | |
eebf11a0 | 260 | |
4d715a80 AR |
261 | enum type { |
262 | SANDY_BRIDGE, | |
263 | IVY_BRIDGE, | |
50d1bb93 | 264 | HASWELL, |
1f39581a | 265 | BROADWELL, |
4d715a80 AR |
266 | }; |
267 | ||
fb79a509 | 268 | struct sbridge_pvt; |
eebf11a0 | 269 | struct sbridge_info { |
4d715a80 | 270 | enum type type; |
464f1d82 AR |
271 | u32 mcmtr; |
272 | u32 rankcfgr; | |
273 | u64 (*get_tolm)(struct sbridge_pvt *pvt); | |
274 | u64 (*get_tohm)(struct sbridge_pvt *pvt); | |
b976bcf2 | 275 | u64 (*rir_limit)(u32 reg); |
464f1d82 | 276 | const u32 *dram_rule; |
ef1ce51e | 277 | const u32 *interleave_list; |
cc311991 | 278 | const struct interleave_pkg *interleave_pkg; |
464f1d82 | 279 | u8 max_sad; |
ef1ce51e | 280 | u8 max_interleave; |
f14d6892 | 281 | u8 (*get_node_id)(struct sbridge_pvt *pvt); |
9e375446 | 282 | enum mem_type (*get_memory_type)(struct sbridge_pvt *pvt); |
50d1bb93 | 283 | struct pci_dev *pci_vtd; |
eebf11a0 MCC |
284 | }; |
285 | ||
286 | struct sbridge_channel { | |
287 | u32 ranks; | |
288 | u32 dimms; | |
289 | }; | |
290 | ||
291 | struct pci_id_descr { | |
c41afdca | 292 | int dev_id; |
eebf11a0 MCC |
293 | int optional; |
294 | }; | |
295 | ||
296 | struct pci_id_table { | |
297 | const struct pci_id_descr *descr; | |
298 | int n_devs; | |
299 | }; | |
300 | ||
301 | struct sbridge_dev { | |
302 | struct list_head list; | |
303 | u8 bus, mc; | |
304 | u8 node_id, source_id; | |
305 | struct pci_dev **pdev; | |
306 | int n_devs; | |
307 | struct mem_ctl_info *mci; | |
308 | }; | |
309 | ||
310 | struct sbridge_pvt { | |
311 | struct pci_dev *pci_ta, *pci_ddrio, *pci_ras; | |
4d715a80 AR |
312 | struct pci_dev *pci_sad0, *pci_sad1; |
313 | struct pci_dev *pci_ha0, *pci_ha1; | |
314 | struct pci_dev *pci_br0, *pci_br1; | |
50d1bb93 | 315 | struct pci_dev *pci_ha1_ta; |
eebf11a0 MCC |
316 | struct pci_dev *pci_tad[NUM_CHANNELS]; |
317 | ||
318 | struct sbridge_dev *sbridge_dev; | |
319 | ||
320 | struct sbridge_info info; | |
321 | struct sbridge_channel channel[NUM_CHANNELS]; | |
322 | ||
eebf11a0 MCC |
323 | /* Memory type detection */ |
324 | bool is_mirrored, is_lockstep, is_close_pg; | |
325 | ||
eebf11a0 MCC |
326 | /* Fifo double buffers */ |
327 | struct mce mce_entry[MCE_LOG_LEN]; | |
328 | struct mce mce_outentry[MCE_LOG_LEN]; | |
329 | ||
330 | /* Fifo in/out counters */ | |
331 | unsigned mce_in, mce_out; | |
332 | ||
333 | /* Count indicator to show errors not got */ | |
334 | unsigned mce_overrun; | |
335 | ||
336 | /* Memory description */ | |
337 | u64 tolm, tohm; | |
338 | }; | |
339 | ||
dbc954dd AR |
340 | #define PCI_DESCR(device_id, opt) \ |
341 | .dev_id = (device_id), \ | |
de4772c6 | 342 | .optional = opt |
eebf11a0 MCC |
343 | |
344 | static const struct pci_id_descr pci_dev_descr_sbridge[] = { | |
345 | /* Processor Home Agent */ | |
dbc954dd | 346 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_HA0, 0) }, |
eebf11a0 MCC |
347 | |
348 | /* Memory controller */ | |
dbc954dd AR |
349 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TA, 0) }, |
350 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_RAS, 0) }, | |
351 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD0, 0) }, | |
352 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD1, 0) }, | |
353 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD2, 0) }, | |
354 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD3, 0) }, | |
355 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_DDRIO, 1) }, | |
eebf11a0 MCC |
356 | |
357 | /* System Address Decoder */ | |
dbc954dd AR |
358 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_SBRIDGE_SAD0, 0) }, |
359 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_SBRIDGE_SAD1, 0) }, | |
eebf11a0 MCC |
360 | |
361 | /* Broadcast Registers */ | |
dbc954dd | 362 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_SBRIDGE_BR, 0) }, |
eebf11a0 MCC |
363 | }; |
364 | ||
365 | #define PCI_ID_TABLE_ENTRY(A) { .descr=A, .n_devs = ARRAY_SIZE(A) } | |
366 | static const struct pci_id_table pci_dev_descr_sbridge_table[] = { | |
367 | PCI_ID_TABLE_ENTRY(pci_dev_descr_sbridge), | |
368 | {0,} /* 0 terminated list. */ | |
369 | }; | |
370 | ||
4d715a80 AR |
371 | /* This changes depending if 1HA or 2HA: |
372 | * 1HA: | |
373 | * 0x0eb8 (17.0) is DDRIO0 | |
374 | * 2HA: | |
375 | * 0x0ebc (17.4) is DDRIO0 | |
376 | */ | |
377 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_1HA_DDRIO0 0x0eb8 | |
378 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_2HA_DDRIO0 0x0ebc | |
379 | ||
380 | /* pci ids */ | |
381 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0 0x0ea0 | |
382 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA 0x0ea8 | |
383 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_RAS 0x0e71 | |
384 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD0 0x0eaa | |
385 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD1 0x0eab | |
386 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD2 0x0eac | |
387 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD3 0x0ead | |
388 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_SAD 0x0ec8 | |
389 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_BR0 0x0ec9 | |
390 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_BR1 0x0eca | |
391 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1 0x0e60 | |
392 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TA 0x0e68 | |
393 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_RAS 0x0e79 | |
394 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD0 0x0e6a | |
395 | #define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD1 0x0e6b | |
396 | ||
397 | static const struct pci_id_descr pci_dev_descr_ibridge[] = { | |
398 | /* Processor Home Agent */ | |
dbc954dd | 399 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0, 0) }, |
4d715a80 AR |
400 | |
401 | /* Memory controller */ | |
dbc954dd AR |
402 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA, 0) }, |
403 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_RAS, 0) }, | |
404 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD0, 0) }, | |
405 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD1, 0) }, | |
406 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD2, 0) }, | |
407 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD3, 0) }, | |
4d715a80 AR |
408 | |
409 | /* System Address Decoder */ | |
dbc954dd | 410 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_SAD, 0) }, |
4d715a80 AR |
411 | |
412 | /* Broadcast Registers */ | |
dbc954dd AR |
413 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_BR0, 1) }, |
414 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_BR1, 0) }, | |
4d715a80 AR |
415 | |
416 | /* Optional, mode 2HA */ | |
dbc954dd | 417 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1, 1) }, |
4d715a80 | 418 | #if 0 |
dbc954dd AR |
419 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TA, 1) }, |
420 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_RAS, 1) }, | |
4d715a80 | 421 | #endif |
dbc954dd AR |
422 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD0, 1) }, |
423 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD1, 1) }, | |
4d715a80 | 424 | |
dbc954dd AR |
425 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_1HA_DDRIO0, 1) }, |
426 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_2HA_DDRIO0, 1) }, | |
4d715a80 AR |
427 | }; |
428 | ||
429 | static const struct pci_id_table pci_dev_descr_ibridge_table[] = { | |
430 | PCI_ID_TABLE_ENTRY(pci_dev_descr_ibridge), | |
431 | {0,} /* 0 terminated list. */ | |
432 | }; | |
433 | ||
50d1bb93 AR |
434 | /* Haswell support */ |
435 | /* EN processor: | |
436 | * - 1 IMC | |
437 | * - 3 DDR3 channels, 2 DPC per channel | |
438 | * EP processor: | |
439 | * - 1 or 2 IMC | |
440 | * - 4 DDR4 channels, 3 DPC per channel | |
441 | * EP 4S processor: | |
442 | * - 2 IMC | |
443 | * - 4 DDR4 channels, 3 DPC per channel | |
444 | * EX processor: | |
445 | * - 2 IMC | |
446 | * - each IMC interfaces with a SMI 2 channel | |
447 | * - each SMI channel interfaces with a scalable memory buffer | |
448 | * - each scalable memory buffer supports 4 DDR3/DDR4 channels, 3 DPC | |
449 | */ | |
1f39581a | 450 | #define HASWELL_DDRCRCLKCONTROLS 0xa10 /* Ditto on Broadwell */ |
50d1bb93 AR |
451 | #define HASWELL_HASYSDEFEATURE2 0x84 |
452 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_VTD_MISC 0x2f28 | |
453 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0 0x2fa0 | |
454 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1 0x2f60 | |
455 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TA 0x2fa8 | |
456 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_THERMAL 0x2f71 | |
457 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_TA 0x2f68 | |
458 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_THERMAL 0x2f79 | |
459 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_CBO_SAD0 0x2ffc | |
460 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_CBO_SAD1 0x2ffd | |
461 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TAD0 0x2faa | |
462 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TAD1 0x2fab | |
463 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TAD2 0x2fac | |
464 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TAD3 0x2fad | |
465 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_TAD0 0x2f6a | |
466 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_TAD1 0x2f6b | |
467 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_TAD2 0x2f6c | |
468 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_TAD3 0x2f6d | |
469 | #define PCI_DEVICE_ID_INTEL_HASWELL_IMC_DDRIO0 0x2fbd | |
470 | static const struct pci_id_descr pci_dev_descr_haswell[] = { | |
471 | /* first item must be the HA */ | |
472 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0, 0) }, | |
473 | ||
474 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_CBO_SAD0, 0) }, | |
475 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_CBO_SAD1, 0) }, | |
476 | ||
477 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1, 1) }, | |
478 | ||
479 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TA, 0) }, | |
480 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_THERMAL, 0) }, | |
481 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TAD0, 0) }, | |
482 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TAD1, 0) }, | |
483 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TAD2, 1) }, | |
484 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TAD3, 1) }, | |
485 | ||
486 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_DDRIO0, 1) }, | |
487 | ||
488 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_TA, 1) }, | |
489 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_THERMAL, 1) }, | |
490 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_TAD0, 1) }, | |
491 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_TAD1, 1) }, | |
492 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_TAD2, 1) }, | |
493 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_TAD3, 1) }, | |
494 | }; | |
495 | ||
496 | static const struct pci_id_table pci_dev_descr_haswell_table[] = { | |
497 | PCI_ID_TABLE_ENTRY(pci_dev_descr_haswell), | |
498 | {0,} /* 0 terminated list. */ | |
499 | }; | |
500 | ||
1f39581a TL |
501 | /* |
502 | * Broadwell support | |
503 | * | |
504 | * DE processor: | |
505 | * - 1 IMC | |
506 | * - 2 DDR3 channels, 2 DPC per channel | |
507 | */ | |
508 | #define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_VTD_MISC 0x6f28 | |
509 | #define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0 0x6fa0 | |
510 | #define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TA 0x6fa8 | |
511 | #define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_THERMAL 0x6f71 | |
512 | #define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_CBO_SAD0 0x6ffc | |
513 | #define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_CBO_SAD1 0x6ffd | |
514 | #define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD0 0x6faa | |
515 | #define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD1 0x6fab | |
516 | #define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD2 0x6fac | |
517 | #define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD3 0x6fad | |
518 | #define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_DDRIO0 0x6faf | |
519 | ||
520 | static const struct pci_id_descr pci_dev_descr_broadwell[] = { | |
521 | /* first item must be the HA */ | |
522 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0, 0) }, | |
523 | ||
524 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_CBO_SAD0, 0) }, | |
525 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_CBO_SAD1, 0) }, | |
526 | ||
527 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TA, 0) }, | |
528 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_THERMAL, 0) }, | |
529 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD0, 0) }, | |
530 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD1, 0) }, | |
531 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD2, 0) }, | |
532 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD3, 0) }, | |
533 | { PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_DDRIO0, 1) }, | |
534 | }; | |
535 | ||
536 | static const struct pci_id_table pci_dev_descr_broadwell_table[] = { | |
537 | PCI_ID_TABLE_ENTRY(pci_dev_descr_broadwell), | |
538 | {0,} /* 0 terminated list. */ | |
539 | }; | |
540 | ||
eebf11a0 MCC |
541 | /* |
542 | * pci_device_id table for which devices we are looking for | |
543 | */ | |
ba935f40 | 544 | static const struct pci_device_id sbridge_pci_tbl[] = { |
d0585cd8 | 545 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_HA0)}, |
4d715a80 | 546 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA)}, |
50d1bb93 | 547 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0)}, |
1f39581a | 548 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0)}, |
eebf11a0 MCC |
549 | {0,} /* 0 terminated list. */ |
550 | }; | |
551 | ||
552 | ||
553 | /**************************************************************************** | |
15ed103a | 554 | Ancillary status routines |
eebf11a0 MCC |
555 | ****************************************************************************/ |
556 | ||
50d1bb93 | 557 | static inline int numrank(enum type type, u32 mtr) |
eebf11a0 MCC |
558 | { |
559 | int ranks = (1 << RANK_CNT_BITS(mtr)); | |
50d1bb93 AR |
560 | int max = 4; |
561 | ||
562 | if (type == HASWELL) | |
563 | max = 8; | |
eebf11a0 | 564 | |
50d1bb93 AR |
565 | if (ranks > max) { |
566 | edac_dbg(0, "Invalid number of ranks: %d (max = %i) raw value = %x (%04x)\n", | |
567 | ranks, max, (unsigned int)RANK_CNT_BITS(mtr), mtr); | |
eebf11a0 MCC |
568 | return -EINVAL; |
569 | } | |
570 | ||
571 | return ranks; | |
572 | } | |
573 | ||
574 | static inline int numrow(u32 mtr) | |
575 | { | |
576 | int rows = (RANK_WIDTH_BITS(mtr) + 12); | |
577 | ||
578 | if (rows < 13 || rows > 18) { | |
956b9ba1 JP |
579 | edac_dbg(0, "Invalid number of rows: %d (should be between 14 and 17) raw value = %x (%04x)\n", |
580 | rows, (unsigned int)RANK_WIDTH_BITS(mtr), mtr); | |
eebf11a0 MCC |
581 | return -EINVAL; |
582 | } | |
583 | ||
584 | return 1 << rows; | |
585 | } | |
586 | ||
587 | static inline int numcol(u32 mtr) | |
588 | { | |
589 | int cols = (COL_WIDTH_BITS(mtr) + 10); | |
590 | ||
591 | if (cols > 12) { | |
956b9ba1 JP |
592 | edac_dbg(0, "Invalid number of cols: %d (max = 4) raw value = %x (%04x)\n", |
593 | cols, (unsigned int)COL_WIDTH_BITS(mtr), mtr); | |
eebf11a0 MCC |
594 | return -EINVAL; |
595 | } | |
596 | ||
597 | return 1 << cols; | |
598 | } | |
599 | ||
600 | static struct sbridge_dev *get_sbridge_dev(u8 bus) | |
601 | { | |
602 | struct sbridge_dev *sbridge_dev; | |
603 | ||
604 | list_for_each_entry(sbridge_dev, &sbridge_edac_list, list) { | |
605 | if (sbridge_dev->bus == bus) | |
606 | return sbridge_dev; | |
607 | } | |
608 | ||
609 | return NULL; | |
610 | } | |
611 | ||
612 | static struct sbridge_dev *alloc_sbridge_dev(u8 bus, | |
613 | const struct pci_id_table *table) | |
614 | { | |
615 | struct sbridge_dev *sbridge_dev; | |
616 | ||
617 | sbridge_dev = kzalloc(sizeof(*sbridge_dev), GFP_KERNEL); | |
618 | if (!sbridge_dev) | |
619 | return NULL; | |
620 | ||
621 | sbridge_dev->pdev = kzalloc(sizeof(*sbridge_dev->pdev) * table->n_devs, | |
622 | GFP_KERNEL); | |
623 | if (!sbridge_dev->pdev) { | |
624 | kfree(sbridge_dev); | |
625 | return NULL; | |
626 | } | |
627 | ||
628 | sbridge_dev->bus = bus; | |
629 | sbridge_dev->n_devs = table->n_devs; | |
630 | list_add_tail(&sbridge_dev->list, &sbridge_edac_list); | |
631 | ||
632 | return sbridge_dev; | |
633 | } | |
634 | ||
635 | static void free_sbridge_dev(struct sbridge_dev *sbridge_dev) | |
636 | { | |
637 | list_del(&sbridge_dev->list); | |
638 | kfree(sbridge_dev->pdev); | |
639 | kfree(sbridge_dev); | |
640 | } | |
641 | ||
fb79a509 AR |
642 | static u64 sbridge_get_tolm(struct sbridge_pvt *pvt) |
643 | { | |
644 | u32 reg; | |
645 | ||
646 | /* Address range is 32:28 */ | |
647 | pci_read_config_dword(pvt->pci_sad1, TOLM, ®); | |
648 | return GET_TOLM(reg); | |
649 | } | |
650 | ||
8fd6a43a AR |
651 | static u64 sbridge_get_tohm(struct sbridge_pvt *pvt) |
652 | { | |
653 | u32 reg; | |
654 | ||
655 | pci_read_config_dword(pvt->pci_sad1, TOHM, ®); | |
656 | return GET_TOHM(reg); | |
657 | } | |
658 | ||
4d715a80 AR |
659 | static u64 ibridge_get_tolm(struct sbridge_pvt *pvt) |
660 | { | |
661 | u32 reg; | |
662 | ||
663 | pci_read_config_dword(pvt->pci_br1, TOLM, ®); | |
664 | ||
665 | return GET_TOLM(reg); | |
666 | } | |
667 | ||
668 | static u64 ibridge_get_tohm(struct sbridge_pvt *pvt) | |
669 | { | |
670 | u32 reg; | |
671 | ||
672 | pci_read_config_dword(pvt->pci_br1, TOHM, ®); | |
673 | ||
674 | return GET_TOHM(reg); | |
675 | } | |
676 | ||
b976bcf2 AR |
677 | static u64 rir_limit(u32 reg) |
678 | { | |
679 | return ((u64)GET_BITFIELD(reg, 1, 10) << 29) | 0x1fffffff; | |
680 | } | |
681 | ||
9e375446 AR |
682 | static enum mem_type get_memory_type(struct sbridge_pvt *pvt) |
683 | { | |
684 | u32 reg; | |
685 | enum mem_type mtype; | |
686 | ||
687 | if (pvt->pci_ddrio) { | |
688 | pci_read_config_dword(pvt->pci_ddrio, pvt->info.rankcfgr, | |
689 | ®); | |
690 | if (GET_BITFIELD(reg, 11, 11)) | |
691 | /* FIXME: Can also be LRDIMM */ | |
692 | mtype = MEM_RDDR3; | |
693 | else | |
694 | mtype = MEM_DDR3; | |
695 | } else | |
696 | mtype = MEM_UNKNOWN; | |
697 | ||
698 | return mtype; | |
699 | } | |
700 | ||
50d1bb93 AR |
701 | static enum mem_type haswell_get_memory_type(struct sbridge_pvt *pvt) |
702 | { | |
703 | u32 reg; | |
704 | bool registered = false; | |
705 | enum mem_type mtype = MEM_UNKNOWN; | |
706 | ||
707 | if (!pvt->pci_ddrio) | |
708 | goto out; | |
709 | ||
710 | pci_read_config_dword(pvt->pci_ddrio, | |
711 | HASWELL_DDRCRCLKCONTROLS, ®); | |
712 | /* Is_Rdimm */ | |
713 | if (GET_BITFIELD(reg, 16, 16)) | |
714 | registered = true; | |
715 | ||
716 | pci_read_config_dword(pvt->pci_ta, MCMTR, ®); | |
717 | if (GET_BITFIELD(reg, 14, 14)) { | |
718 | if (registered) | |
719 | mtype = MEM_RDDR4; | |
720 | else | |
721 | mtype = MEM_DDR4; | |
722 | } else { | |
723 | if (registered) | |
724 | mtype = MEM_RDDR3; | |
725 | else | |
726 | mtype = MEM_DDR3; | |
727 | } | |
728 | ||
729 | out: | |
730 | return mtype; | |
731 | } | |
732 | ||
f14d6892 AR |
733 | static u8 get_node_id(struct sbridge_pvt *pvt) |
734 | { | |
735 | u32 reg; | |
736 | pci_read_config_dword(pvt->pci_br0, SAD_CONTROL, ®); | |
737 | return GET_BITFIELD(reg, 0, 2); | |
738 | } | |
739 | ||
50d1bb93 AR |
740 | static u8 haswell_get_node_id(struct sbridge_pvt *pvt) |
741 | { | |
742 | u32 reg; | |
743 | ||
744 | pci_read_config_dword(pvt->pci_sad1, SAD_CONTROL, ®); | |
745 | return GET_BITFIELD(reg, 0, 3); | |
746 | } | |
747 | ||
748 | static u64 haswell_get_tolm(struct sbridge_pvt *pvt) | |
749 | { | |
750 | u32 reg; | |
751 | ||
f7cf2a22 TL |
752 | pci_read_config_dword(pvt->info.pci_vtd, HASWELL_TOLM, ®); |
753 | return (GET_BITFIELD(reg, 26, 31) << 26) | 0x3ffffff; | |
50d1bb93 AR |
754 | } |
755 | ||
756 | static u64 haswell_get_tohm(struct sbridge_pvt *pvt) | |
757 | { | |
758 | u64 rc; | |
759 | u32 reg; | |
760 | ||
761 | pci_read_config_dword(pvt->info.pci_vtd, HASWELL_TOHM_0, ®); | |
762 | rc = GET_BITFIELD(reg, 26, 31); | |
763 | pci_read_config_dword(pvt->info.pci_vtd, HASWELL_TOHM_1, ®); | |
764 | rc = ((reg << 6) | rc) << 26; | |
765 | ||
766 | return rc | 0x1ffffff; | |
767 | } | |
768 | ||
769 | static u64 haswell_rir_limit(u32 reg) | |
770 | { | |
771 | return (((u64)GET_BITFIELD(reg, 1, 11) + 1) << 29) - 1; | |
772 | } | |
773 | ||
4d715a80 AR |
774 | static inline u8 sad_pkg_socket(u8 pkg) |
775 | { | |
776 | /* on Ivy Bridge, nodeID is SASS, where A is HA and S is node id */ | |
2ff3a308 | 777 | return ((pkg >> 3) << 2) | (pkg & 0x3); |
4d715a80 AR |
778 | } |
779 | ||
780 | static inline u8 sad_pkg_ha(u8 pkg) | |
781 | { | |
782 | return (pkg >> 2) & 0x1; | |
783 | } | |
784 | ||
eebf11a0 MCC |
785 | /**************************************************************************** |
786 | Memory check routines | |
787 | ****************************************************************************/ | |
dbc954dd | 788 | static struct pci_dev *get_pdev_same_bus(u8 bus, u32 id) |
eebf11a0 | 789 | { |
dbc954dd | 790 | struct pci_dev *pdev = NULL; |
eebf11a0 | 791 | |
dbc954dd AR |
792 | do { |
793 | pdev = pci_get_device(PCI_VENDOR_ID_INTEL, id, pdev); | |
794 | if (pdev && pdev->bus->number == bus) | |
795 | break; | |
796 | } while (pdev); | |
eebf11a0 | 797 | |
dbc954dd | 798 | return pdev; |
eebf11a0 MCC |
799 | } |
800 | ||
801 | /** | |
c36e3e77 | 802 | * check_if_ecc_is_active() - Checks if ECC is active |
50d1bb93 AR |
803 | * @bus: Device bus |
804 | * @type: Memory controller type | |
805 | * returns: 0 in case ECC is active, -ENODEV if it can't be determined or | |
806 | * disabled | |
eebf11a0 | 807 | */ |
dbc954dd | 808 | static int check_if_ecc_is_active(const u8 bus, enum type type) |
eebf11a0 MCC |
809 | { |
810 | struct pci_dev *pdev = NULL; | |
dbc954dd | 811 | u32 mcmtr, id; |
eebf11a0 | 812 | |
1f39581a TL |
813 | switch (type) { |
814 | case IVY_BRIDGE: | |
dbc954dd | 815 | id = PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA; |
1f39581a TL |
816 | break; |
817 | case HASWELL: | |
50d1bb93 | 818 | id = PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TA; |
1f39581a TL |
819 | break; |
820 | case SANDY_BRIDGE: | |
dbc954dd | 821 | id = PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TA; |
1f39581a TL |
822 | break; |
823 | case BROADWELL: | |
824 | id = PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TA; | |
825 | break; | |
826 | default: | |
827 | return -ENODEV; | |
828 | } | |
dbc954dd AR |
829 | |
830 | pdev = get_pdev_same_bus(bus, id); | |
eebf11a0 MCC |
831 | if (!pdev) { |
832 | sbridge_printk(KERN_ERR, "Couldn't find PCI device " | |
dbc954dd AR |
833 | "%04x:%04x! on bus %02d\n", |
834 | PCI_VENDOR_ID_INTEL, id, bus); | |
eebf11a0 MCC |
835 | return -ENODEV; |
836 | } | |
837 | ||
838 | pci_read_config_dword(pdev, MCMTR, &mcmtr); | |
839 | if (!IS_ECC_ENABLED(mcmtr)) { | |
840 | sbridge_printk(KERN_ERR, "ECC is disabled. Aborting\n"); | |
841 | return -ENODEV; | |
842 | } | |
eebf11a0 MCC |
843 | return 0; |
844 | } | |
845 | ||
084a4fcc | 846 | static int get_dimm_config(struct mem_ctl_info *mci) |
eebf11a0 MCC |
847 | { |
848 | struct sbridge_pvt *pvt = mci->pvt_info; | |
c36e3e77 | 849 | struct dimm_info *dimm; |
deb09dda MCC |
850 | unsigned i, j, banks, ranks, rows, cols, npages; |
851 | u64 size; | |
eebf11a0 MCC |
852 | u32 reg; |
853 | enum edac_type mode; | |
c6e13b52 | 854 | enum mem_type mtype; |
eebf11a0 | 855 | |
1f39581a | 856 | if (pvt->info.type == HASWELL || pvt->info.type == BROADWELL) |
50d1bb93 AR |
857 | pci_read_config_dword(pvt->pci_sad1, SAD_TARGET, ®); |
858 | else | |
859 | pci_read_config_dword(pvt->pci_br0, SAD_TARGET, ®); | |
860 | ||
eebf11a0 MCC |
861 | pvt->sbridge_dev->source_id = SOURCE_ID(reg); |
862 | ||
f14d6892 | 863 | pvt->sbridge_dev->node_id = pvt->info.get_node_id(pvt); |
956b9ba1 JP |
864 | edac_dbg(0, "mc#%d: Node ID: %d, source ID: %d\n", |
865 | pvt->sbridge_dev->mc, | |
866 | pvt->sbridge_dev->node_id, | |
867 | pvt->sbridge_dev->source_id); | |
eebf11a0 MCC |
868 | |
869 | pci_read_config_dword(pvt->pci_ras, RASENABLES, ®); | |
870 | if (IS_MIRROR_ENABLED(reg)) { | |
956b9ba1 | 871 | edac_dbg(0, "Memory mirror is enabled\n"); |
eebf11a0 MCC |
872 | pvt->is_mirrored = true; |
873 | } else { | |
956b9ba1 | 874 | edac_dbg(0, "Memory mirror is disabled\n"); |
eebf11a0 MCC |
875 | pvt->is_mirrored = false; |
876 | } | |
877 | ||
878 | pci_read_config_dword(pvt->pci_ta, MCMTR, &pvt->info.mcmtr); | |
879 | if (IS_LOCKSTEP_ENABLED(pvt->info.mcmtr)) { | |
956b9ba1 | 880 | edac_dbg(0, "Lockstep is enabled\n"); |
eebf11a0 MCC |
881 | mode = EDAC_S8ECD8ED; |
882 | pvt->is_lockstep = true; | |
883 | } else { | |
956b9ba1 | 884 | edac_dbg(0, "Lockstep is disabled\n"); |
eebf11a0 MCC |
885 | mode = EDAC_S4ECD4ED; |
886 | pvt->is_lockstep = false; | |
887 | } | |
888 | if (IS_CLOSE_PG(pvt->info.mcmtr)) { | |
956b9ba1 | 889 | edac_dbg(0, "address map is on closed page mode\n"); |
eebf11a0 MCC |
890 | pvt->is_close_pg = true; |
891 | } else { | |
956b9ba1 | 892 | edac_dbg(0, "address map is on open page mode\n"); |
eebf11a0 MCC |
893 | pvt->is_close_pg = false; |
894 | } | |
895 | ||
9e375446 | 896 | mtype = pvt->info.get_memory_type(pvt); |
50d1bb93 | 897 | if (mtype == MEM_RDDR3 || mtype == MEM_RDDR4) |
9e375446 AR |
898 | edac_dbg(0, "Memory is registered\n"); |
899 | else if (mtype == MEM_UNKNOWN) | |
de4772c6 | 900 | edac_dbg(0, "Cannot determine memory type\n"); |
9e375446 AR |
901 | else |
902 | edac_dbg(0, "Memory is unregistered\n"); | |
eebf11a0 | 903 | |
fec53af5 | 904 | if (mtype == MEM_DDR4 || mtype == MEM_RDDR4) |
50d1bb93 AR |
905 | banks = 16; |
906 | else | |
907 | banks = 8; | |
eebf11a0 MCC |
908 | |
909 | for (i = 0; i < NUM_CHANNELS; i++) { | |
910 | u32 mtr; | |
911 | ||
912 | for (j = 0; j < ARRAY_SIZE(mtr_regs); j++) { | |
c36e3e77 MCC |
913 | dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms, mci->n_layers, |
914 | i, j, 0); | |
eebf11a0 MCC |
915 | pci_read_config_dword(pvt->pci_tad[i], |
916 | mtr_regs[j], &mtr); | |
956b9ba1 | 917 | edac_dbg(4, "Channel #%d MTR%d = %x\n", i, j, mtr); |
eebf11a0 MCC |
918 | if (IS_DIMM_PRESENT(mtr)) { |
919 | pvt->channel[i].dimms++; | |
920 | ||
50d1bb93 | 921 | ranks = numrank(pvt->info.type, mtr); |
eebf11a0 MCC |
922 | rows = numrow(mtr); |
923 | cols = numcol(mtr); | |
924 | ||
deb09dda | 925 | size = ((u64)rows * cols * banks * ranks) >> (20 - 3); |
eebf11a0 MCC |
926 | npages = MiB_TO_PAGES(size); |
927 | ||
deb09dda | 928 | edac_dbg(0, "mc#%d: channel %d, dimm %d, %Ld Mb (%d pages) bank: %d, rank: %d, row: %#x, col: %#x\n", |
956b9ba1 JP |
929 | pvt->sbridge_dev->mc, i, j, |
930 | size, npages, | |
931 | banks, ranks, rows, cols); | |
eebf11a0 | 932 | |
a895bf8b | 933 | dimm->nr_pages = npages; |
084a4fcc | 934 | dimm->grain = 32; |
50d1bb93 AR |
935 | switch (banks) { |
936 | case 16: | |
937 | dimm->dtype = DEV_X16; | |
938 | break; | |
939 | case 8: | |
940 | dimm->dtype = DEV_X8; | |
941 | break; | |
942 | case 4: | |
943 | dimm->dtype = DEV_X4; | |
944 | break; | |
945 | } | |
084a4fcc MCC |
946 | dimm->mtype = mtype; |
947 | dimm->edac_mode = mode; | |
948 | snprintf(dimm->label, sizeof(dimm->label), | |
eebf11a0 MCC |
949 | "CPU_SrcID#%u_Channel#%u_DIMM#%u", |
950 | pvt->sbridge_dev->source_id, i, j); | |
eebf11a0 MCC |
951 | } |
952 | } | |
953 | } | |
954 | ||
955 | return 0; | |
956 | } | |
957 | ||
958 | static void get_memory_layout(const struct mem_ctl_info *mci) | |
959 | { | |
960 | struct sbridge_pvt *pvt = mci->pvt_info; | |
961 | int i, j, k, n_sads, n_tads, sad_interl; | |
962 | u32 reg; | |
963 | u64 limit, prv = 0; | |
964 | u64 tmp_mb; | |
8c009100 | 965 | u32 gb, mb; |
eebf11a0 MCC |
966 | u32 rir_way; |
967 | ||
968 | /* | |
969 | * Step 1) Get TOLM/TOHM ranges | |
970 | */ | |
971 | ||
fb79a509 | 972 | pvt->tolm = pvt->info.get_tolm(pvt); |
eebf11a0 MCC |
973 | tmp_mb = (1 + pvt->tolm) >> 20; |
974 | ||
8c009100 JS |
975 | gb = div_u64_rem(tmp_mb, 1024, &mb); |
976 | edac_dbg(0, "TOLM: %u.%03u GB (0x%016Lx)\n", | |
977 | gb, (mb*1000)/1024, (u64)pvt->tolm); | |
eebf11a0 MCC |
978 | |
979 | /* Address range is already 45:25 */ | |
8fd6a43a | 980 | pvt->tohm = pvt->info.get_tohm(pvt); |
eebf11a0 MCC |
981 | tmp_mb = (1 + pvt->tohm) >> 20; |
982 | ||
8c009100 JS |
983 | gb = div_u64_rem(tmp_mb, 1024, &mb); |
984 | edac_dbg(0, "TOHM: %u.%03u GB (0x%016Lx)\n", | |
985 | gb, (mb*1000)/1024, (u64)pvt->tohm); | |
eebf11a0 MCC |
986 | |
987 | /* | |
988 | * Step 2) Get SAD range and SAD Interleave list | |
989 | * TAD registers contain the interleave wayness. However, it | |
990 | * seems simpler to just discover it indirectly, with the | |
991 | * algorithm bellow. | |
992 | */ | |
993 | prv = 0; | |
464f1d82 | 994 | for (n_sads = 0; n_sads < pvt->info.max_sad; n_sads++) { |
eebf11a0 | 995 | /* SAD_LIMIT Address range is 45:26 */ |
464f1d82 | 996 | pci_read_config_dword(pvt->pci_sad0, pvt->info.dram_rule[n_sads], |
eebf11a0 MCC |
997 | ®); |
998 | limit = SAD_LIMIT(reg); | |
999 | ||
1000 | if (!DRAM_RULE_ENABLE(reg)) | |
1001 | continue; | |
1002 | ||
1003 | if (limit <= prv) | |
1004 | break; | |
1005 | ||
1006 | tmp_mb = (limit + 1) >> 20; | |
8c009100 | 1007 | gb = div_u64_rem(tmp_mb, 1024, &mb); |
956b9ba1 JP |
1008 | edac_dbg(0, "SAD#%d %s up to %u.%03u GB (0x%016Lx) Interleave: %s reg=0x%08x\n", |
1009 | n_sads, | |
1010 | get_dram_attr(reg), | |
8c009100 | 1011 | gb, (mb*1000)/1024, |
956b9ba1 JP |
1012 | ((u64)tmp_mb) << 20L, |
1013 | INTERLEAVE_MODE(reg) ? "8:6" : "[8:6]XOR[18:16]", | |
1014 | reg); | |
eebf11a0 MCC |
1015 | prv = limit; |
1016 | ||
ef1ce51e | 1017 | pci_read_config_dword(pvt->pci_sad0, pvt->info.interleave_list[n_sads], |
eebf11a0 | 1018 | ®); |
cc311991 | 1019 | sad_interl = sad_pkg(pvt->info.interleave_pkg, reg, 0); |
eebf11a0 | 1020 | for (j = 0; j < 8; j++) { |
cc311991 AR |
1021 | u32 pkg = sad_pkg(pvt->info.interleave_pkg, reg, j); |
1022 | if (j > 0 && sad_interl == pkg) | |
eebf11a0 MCC |
1023 | break; |
1024 | ||
956b9ba1 | 1025 | edac_dbg(0, "SAD#%d, interleave #%d: %d\n", |
cc311991 | 1026 | n_sads, j, pkg); |
eebf11a0 MCC |
1027 | } |
1028 | } | |
1029 | ||
1030 | /* | |
1031 | * Step 3) Get TAD range | |
1032 | */ | |
1033 | prv = 0; | |
1034 | for (n_tads = 0; n_tads < MAX_TAD; n_tads++) { | |
1035 | pci_read_config_dword(pvt->pci_ha0, tad_dram_rule[n_tads], | |
1036 | ®); | |
1037 | limit = TAD_LIMIT(reg); | |
1038 | if (limit <= prv) | |
1039 | break; | |
1040 | tmp_mb = (limit + 1) >> 20; | |
1041 | ||
8c009100 | 1042 | gb = div_u64_rem(tmp_mb, 1024, &mb); |
956b9ba1 | 1043 | edac_dbg(0, "TAD#%d: up to %u.%03u GB (0x%016Lx), socket interleave %d, memory interleave %d, TGT: %d, %d, %d, %d, reg=0x%08x\n", |
8c009100 | 1044 | n_tads, gb, (mb*1000)/1024, |
956b9ba1 JP |
1045 | ((u64)tmp_mb) << 20L, |
1046 | (u32)TAD_SOCK(reg), | |
1047 | (u32)TAD_CH(reg), | |
1048 | (u32)TAD_TGT0(reg), | |
1049 | (u32)TAD_TGT1(reg), | |
1050 | (u32)TAD_TGT2(reg), | |
1051 | (u32)TAD_TGT3(reg), | |
1052 | reg); | |
7fae0db4 | 1053 | prv = limit; |
eebf11a0 MCC |
1054 | } |
1055 | ||
1056 | /* | |
1057 | * Step 4) Get TAD offsets, per each channel | |
1058 | */ | |
1059 | for (i = 0; i < NUM_CHANNELS; i++) { | |
1060 | if (!pvt->channel[i].dimms) | |
1061 | continue; | |
1062 | for (j = 0; j < n_tads; j++) { | |
1063 | pci_read_config_dword(pvt->pci_tad[i], | |
1064 | tad_ch_nilv_offset[j], | |
1065 | ®); | |
1066 | tmp_mb = TAD_OFFSET(reg) >> 20; | |
8c009100 | 1067 | gb = div_u64_rem(tmp_mb, 1024, &mb); |
956b9ba1 JP |
1068 | edac_dbg(0, "TAD CH#%d, offset #%d: %u.%03u GB (0x%016Lx), reg=0x%08x\n", |
1069 | i, j, | |
8c009100 | 1070 | gb, (mb*1000)/1024, |
956b9ba1 JP |
1071 | ((u64)tmp_mb) << 20L, |
1072 | reg); | |
eebf11a0 MCC |
1073 | } |
1074 | } | |
1075 | ||
1076 | /* | |
1077 | * Step 6) Get RIR Wayness/Limit, per each channel | |
1078 | */ | |
1079 | for (i = 0; i < NUM_CHANNELS; i++) { | |
1080 | if (!pvt->channel[i].dimms) | |
1081 | continue; | |
1082 | for (j = 0; j < MAX_RIR_RANGES; j++) { | |
1083 | pci_read_config_dword(pvt->pci_tad[i], | |
1084 | rir_way_limit[j], | |
1085 | ®); | |
1086 | ||
1087 | if (!IS_RIR_VALID(reg)) | |
1088 | continue; | |
1089 | ||
b976bcf2 | 1090 | tmp_mb = pvt->info.rir_limit(reg) >> 20; |
eebf11a0 | 1091 | rir_way = 1 << RIR_WAY(reg); |
8c009100 | 1092 | gb = div_u64_rem(tmp_mb, 1024, &mb); |
956b9ba1 JP |
1093 | edac_dbg(0, "CH#%d RIR#%d, limit: %u.%03u GB (0x%016Lx), way: %d, reg=0x%08x\n", |
1094 | i, j, | |
8c009100 | 1095 | gb, (mb*1000)/1024, |
956b9ba1 JP |
1096 | ((u64)tmp_mb) << 20L, |
1097 | rir_way, | |
1098 | reg); | |
eebf11a0 MCC |
1099 | |
1100 | for (k = 0; k < rir_way; k++) { | |
1101 | pci_read_config_dword(pvt->pci_tad[i], | |
1102 | rir_offset[j][k], | |
1103 | ®); | |
1104 | tmp_mb = RIR_OFFSET(reg) << 6; | |
1105 | ||
8c009100 | 1106 | gb = div_u64_rem(tmp_mb, 1024, &mb); |
956b9ba1 JP |
1107 | edac_dbg(0, "CH#%d RIR#%d INTL#%d, offset %u.%03u GB (0x%016Lx), tgt: %d, reg=0x%08x\n", |
1108 | i, j, k, | |
8c009100 | 1109 | gb, (mb*1000)/1024, |
956b9ba1 JP |
1110 | ((u64)tmp_mb) << 20L, |
1111 | (u32)RIR_RNK_TGT(reg), | |
1112 | reg); | |
eebf11a0 MCC |
1113 | } |
1114 | } | |
1115 | } | |
1116 | } | |
1117 | ||
8112c0cd | 1118 | static struct mem_ctl_info *get_mci_for_node_id(u8 node_id) |
eebf11a0 MCC |
1119 | { |
1120 | struct sbridge_dev *sbridge_dev; | |
1121 | ||
1122 | list_for_each_entry(sbridge_dev, &sbridge_edac_list, list) { | |
1123 | if (sbridge_dev->node_id == node_id) | |
1124 | return sbridge_dev->mci; | |
1125 | } | |
1126 | return NULL; | |
1127 | } | |
1128 | ||
1129 | static int get_memory_error_data(struct mem_ctl_info *mci, | |
1130 | u64 addr, | |
1131 | u8 *socket, | |
1132 | long *channel_mask, | |
1133 | u8 *rank, | |
e17a2f42 | 1134 | char **area_type, char *msg) |
eebf11a0 MCC |
1135 | { |
1136 | struct mem_ctl_info *new_mci; | |
1137 | struct sbridge_pvt *pvt = mci->pvt_info; | |
4d715a80 | 1138 | struct pci_dev *pci_ha; |
c41afdca | 1139 | int n_rir, n_sads, n_tads, sad_way, sck_xch; |
eebf11a0 | 1140 | int sad_interl, idx, base_ch; |
50d1bb93 | 1141 | int interleave_mode, shiftup = 0; |
ef1ce51e | 1142 | unsigned sad_interleave[pvt->info.max_interleave]; |
50d1bb93 | 1143 | u32 reg, dram_rule; |
4d715a80 | 1144 | u8 ch_way, sck_way, pkg, sad_ha = 0; |
eebf11a0 MCC |
1145 | u32 tad_offset; |
1146 | u32 rir_way; | |
8c009100 | 1147 | u32 mb, gb; |
bd4b9683 | 1148 | u64 ch_addr, offset, limit = 0, prv = 0; |
eebf11a0 MCC |
1149 | |
1150 | ||
1151 | /* | |
1152 | * Step 0) Check if the address is at special memory ranges | |
1153 | * The check bellow is probably enough to fill all cases where | |
1154 | * the error is not inside a memory, except for the legacy | |
1155 | * range (e. g. VGA addresses). It is unlikely, however, that the | |
1156 | * memory controller would generate an error on that range. | |
1157 | */ | |
5b889e37 | 1158 | if ((addr > (u64) pvt->tolm) && (addr < (1LL << 32))) { |
eebf11a0 | 1159 | sprintf(msg, "Error at TOLM area, on addr 0x%08Lx", addr); |
eebf11a0 MCC |
1160 | return -EINVAL; |
1161 | } | |
1162 | if (addr >= (u64)pvt->tohm) { | |
1163 | sprintf(msg, "Error at MMIOH area, on addr 0x%016Lx", addr); | |
eebf11a0 MCC |
1164 | return -EINVAL; |
1165 | } | |
1166 | ||
1167 | /* | |
1168 | * Step 1) Get socket | |
1169 | */ | |
464f1d82 AR |
1170 | for (n_sads = 0; n_sads < pvt->info.max_sad; n_sads++) { |
1171 | pci_read_config_dword(pvt->pci_sad0, pvt->info.dram_rule[n_sads], | |
eebf11a0 MCC |
1172 | ®); |
1173 | ||
1174 | if (!DRAM_RULE_ENABLE(reg)) | |
1175 | continue; | |
1176 | ||
1177 | limit = SAD_LIMIT(reg); | |
1178 | if (limit <= prv) { | |
1179 | sprintf(msg, "Can't discover the memory socket"); | |
eebf11a0 MCC |
1180 | return -EINVAL; |
1181 | } | |
1182 | if (addr <= limit) | |
1183 | break; | |
1184 | prv = limit; | |
1185 | } | |
464f1d82 | 1186 | if (n_sads == pvt->info.max_sad) { |
eebf11a0 | 1187 | sprintf(msg, "Can't discover the memory socket"); |
eebf11a0 MCC |
1188 | return -EINVAL; |
1189 | } | |
50d1bb93 AR |
1190 | dram_rule = reg; |
1191 | *area_type = get_dram_attr(dram_rule); | |
1192 | interleave_mode = INTERLEAVE_MODE(dram_rule); | |
eebf11a0 | 1193 | |
ef1ce51e | 1194 | pci_read_config_dword(pvt->pci_sad0, pvt->info.interleave_list[n_sads], |
eebf11a0 | 1195 | ®); |
4d715a80 AR |
1196 | |
1197 | if (pvt->info.type == SANDY_BRIDGE) { | |
1198 | sad_interl = sad_pkg(pvt->info.interleave_pkg, reg, 0); | |
1199 | for (sad_way = 0; sad_way < 8; sad_way++) { | |
1200 | u32 pkg = sad_pkg(pvt->info.interleave_pkg, reg, sad_way); | |
1201 | if (sad_way > 0 && sad_interl == pkg) | |
1202 | break; | |
1203 | sad_interleave[sad_way] = pkg; | |
1204 | edac_dbg(0, "SAD interleave #%d: %d\n", | |
1205 | sad_way, sad_interleave[sad_way]); | |
1206 | } | |
1207 | edac_dbg(0, "mc#%d: Error detected on SAD#%d: address 0x%016Lx < 0x%016Lx, Interleave [%d:6]%s\n", | |
1208 | pvt->sbridge_dev->mc, | |
1209 | n_sads, | |
1210 | addr, | |
1211 | limit, | |
1212 | sad_way + 7, | |
1213 | !interleave_mode ? "" : "XOR[18:16]"); | |
1214 | if (interleave_mode) | |
1215 | idx = ((addr >> 6) ^ (addr >> 16)) & 7; | |
1216 | else | |
1217 | idx = (addr >> 6) & 7; | |
1218 | switch (sad_way) { | |
1219 | case 1: | |
1220 | idx = 0; | |
eebf11a0 | 1221 | break; |
4d715a80 AR |
1222 | case 2: |
1223 | idx = idx & 1; | |
1224 | break; | |
1225 | case 4: | |
1226 | idx = idx & 3; | |
1227 | break; | |
1228 | case 8: | |
1229 | break; | |
1230 | default: | |
1231 | sprintf(msg, "Can't discover socket interleave"); | |
1232 | return -EINVAL; | |
1233 | } | |
1234 | *socket = sad_interleave[idx]; | |
1235 | edac_dbg(0, "SAD interleave index: %d (wayness %d) = CPU socket %d\n", | |
1236 | idx, sad_way, *socket); | |
1f39581a | 1237 | } else if (pvt->info.type == HASWELL || pvt->info.type == BROADWELL) { |
50d1bb93 AR |
1238 | int bits, a7mode = A7MODE(dram_rule); |
1239 | ||
1240 | if (a7mode) { | |
1241 | /* A7 mode swaps P9 with P6 */ | |
1242 | bits = GET_BITFIELD(addr, 7, 8) << 1; | |
1243 | bits |= GET_BITFIELD(addr, 9, 9); | |
1244 | } else | |
1245 | bits = GET_BITFIELD(addr, 7, 9); | |
1246 | ||
1247 | if (interleave_mode) { | |
1248 | /* interleave mode will XOR {8,7,6} with {18,17,16} */ | |
1249 | idx = GET_BITFIELD(addr, 16, 18); | |
1250 | idx ^= bits; | |
1251 | } else | |
1252 | idx = bits; | |
1253 | ||
1254 | pkg = sad_pkg(pvt->info.interleave_pkg, reg, idx); | |
1255 | *socket = sad_pkg_socket(pkg); | |
1256 | sad_ha = sad_pkg_ha(pkg); | |
1257 | ||
1258 | if (a7mode) { | |
1259 | /* MCChanShiftUpEnable */ | |
1260 | pci_read_config_dword(pvt->pci_ha0, | |
1261 | HASWELL_HASYSDEFEATURE2, ®); | |
1262 | shiftup = GET_BITFIELD(reg, 22, 22); | |
1263 | } | |
1264 | ||
1265 | edac_dbg(0, "SAD interleave package: %d = CPU socket %d, HA %i, shiftup: %i\n", | |
1266 | idx, *socket, sad_ha, shiftup); | |
4d715a80 AR |
1267 | } else { |
1268 | /* Ivy Bridge's SAD mode doesn't support XOR interleave mode */ | |
eebf11a0 | 1269 | idx = (addr >> 6) & 7; |
4d715a80 AR |
1270 | pkg = sad_pkg(pvt->info.interleave_pkg, reg, idx); |
1271 | *socket = sad_pkg_socket(pkg); | |
1272 | sad_ha = sad_pkg_ha(pkg); | |
1273 | edac_dbg(0, "SAD interleave package: %d = CPU socket %d, HA %d\n", | |
1274 | idx, *socket, sad_ha); | |
eebf11a0 | 1275 | } |
eebf11a0 MCC |
1276 | |
1277 | /* | |
1278 | * Move to the proper node structure, in order to access the | |
1279 | * right PCI registers | |
1280 | */ | |
1281 | new_mci = get_mci_for_node_id(*socket); | |
1282 | if (!new_mci) { | |
1283 | sprintf(msg, "Struct for socket #%u wasn't initialized", | |
1284 | *socket); | |
eebf11a0 MCC |
1285 | return -EINVAL; |
1286 | } | |
1287 | mci = new_mci; | |
1288 | pvt = mci->pvt_info; | |
1289 | ||
1290 | /* | |
1291 | * Step 2) Get memory channel | |
1292 | */ | |
1293 | prv = 0; | |
4d715a80 AR |
1294 | if (pvt->info.type == SANDY_BRIDGE) |
1295 | pci_ha = pvt->pci_ha0; | |
1296 | else { | |
1297 | if (sad_ha) | |
1298 | pci_ha = pvt->pci_ha1; | |
1299 | else | |
1300 | pci_ha = pvt->pci_ha0; | |
1301 | } | |
eebf11a0 | 1302 | for (n_tads = 0; n_tads < MAX_TAD; n_tads++) { |
4d715a80 | 1303 | pci_read_config_dword(pci_ha, tad_dram_rule[n_tads], ®); |
eebf11a0 MCC |
1304 | limit = TAD_LIMIT(reg); |
1305 | if (limit <= prv) { | |
1306 | sprintf(msg, "Can't discover the memory channel"); | |
eebf11a0 MCC |
1307 | return -EINVAL; |
1308 | } | |
1309 | if (addr <= limit) | |
1310 | break; | |
1311 | prv = limit; | |
1312 | } | |
4d715a80 AR |
1313 | if (n_tads == MAX_TAD) { |
1314 | sprintf(msg, "Can't discover the memory channel"); | |
1315 | return -EINVAL; | |
1316 | } | |
1317 | ||
eebf11a0 MCC |
1318 | ch_way = TAD_CH(reg) + 1; |
1319 | sck_way = TAD_SOCK(reg) + 1; | |
eebf11a0 MCC |
1320 | |
1321 | if (ch_way == 3) | |
1322 | idx = addr >> 6; | |
1323 | else | |
50d1bb93 | 1324 | idx = (addr >> (6 + sck_way + shiftup)) & 0x3; |
eebf11a0 MCC |
1325 | idx = idx % ch_way; |
1326 | ||
1327 | /* | |
1328 | * FIXME: Shouldn't we use CHN_IDX_OFFSET() here, when ch_way == 3 ??? | |
1329 | */ | |
1330 | switch (idx) { | |
1331 | case 0: | |
1332 | base_ch = TAD_TGT0(reg); | |
1333 | break; | |
1334 | case 1: | |
1335 | base_ch = TAD_TGT1(reg); | |
1336 | break; | |
1337 | case 2: | |
1338 | base_ch = TAD_TGT2(reg); | |
1339 | break; | |
1340 | case 3: | |
1341 | base_ch = TAD_TGT3(reg); | |
1342 | break; | |
1343 | default: | |
1344 | sprintf(msg, "Can't discover the TAD target"); | |
eebf11a0 MCC |
1345 | return -EINVAL; |
1346 | } | |
1347 | *channel_mask = 1 << base_ch; | |
1348 | ||
4d715a80 AR |
1349 | pci_read_config_dword(pvt->pci_tad[base_ch], |
1350 | tad_ch_nilv_offset[n_tads], | |
1351 | &tad_offset); | |
1352 | ||
eebf11a0 MCC |
1353 | if (pvt->is_mirrored) { |
1354 | *channel_mask |= 1 << ((base_ch + 2) % 4); | |
1355 | switch(ch_way) { | |
1356 | case 2: | |
1357 | case 4: | |
1358 | sck_xch = 1 << sck_way * (ch_way >> 1); | |
1359 | break; | |
1360 | default: | |
1361 | sprintf(msg, "Invalid mirror set. Can't decode addr"); | |
eebf11a0 MCC |
1362 | return -EINVAL; |
1363 | } | |
1364 | } else | |
1365 | sck_xch = (1 << sck_way) * ch_way; | |
1366 | ||
1367 | if (pvt->is_lockstep) | |
1368 | *channel_mask |= 1 << ((base_ch + 1) % 4); | |
1369 | ||
1370 | offset = TAD_OFFSET(tad_offset); | |
1371 | ||
956b9ba1 JP |
1372 | edac_dbg(0, "TAD#%d: address 0x%016Lx < 0x%016Lx, socket interleave %d, channel interleave %d (offset 0x%08Lx), index %d, base ch: %d, ch mask: 0x%02lx\n", |
1373 | n_tads, | |
1374 | addr, | |
1375 | limit, | |
1376 | (u32)TAD_SOCK(reg), | |
1377 | ch_way, | |
1378 | offset, | |
1379 | idx, | |
1380 | base_ch, | |
1381 | *channel_mask); | |
eebf11a0 MCC |
1382 | |
1383 | /* Calculate channel address */ | |
1384 | /* Remove the TAD offset */ | |
1385 | ||
1386 | if (offset > addr) { | |
1387 | sprintf(msg, "Can't calculate ch addr: TAD offset 0x%08Lx is too high for addr 0x%08Lx!", | |
1388 | offset, addr); | |
eebf11a0 MCC |
1389 | return -EINVAL; |
1390 | } | |
1391 | addr -= offset; | |
1392 | /* Store the low bits [0:6] of the addr */ | |
1393 | ch_addr = addr & 0x7f; | |
1394 | /* Remove socket wayness and remove 6 bits */ | |
1395 | addr >>= 6; | |
5b889e37 | 1396 | addr = div_u64(addr, sck_xch); |
eebf11a0 MCC |
1397 | #if 0 |
1398 | /* Divide by channel way */ | |
1399 | addr = addr / ch_way; | |
1400 | #endif | |
1401 | /* Recover the last 6 bits */ | |
1402 | ch_addr |= addr << 6; | |
1403 | ||
1404 | /* | |
1405 | * Step 3) Decode rank | |
1406 | */ | |
1407 | for (n_rir = 0; n_rir < MAX_RIR_RANGES; n_rir++) { | |
1408 | pci_read_config_dword(pvt->pci_tad[base_ch], | |
1409 | rir_way_limit[n_rir], | |
1410 | ®); | |
1411 | ||
1412 | if (!IS_RIR_VALID(reg)) | |
1413 | continue; | |
1414 | ||
b976bcf2 | 1415 | limit = pvt->info.rir_limit(reg); |
8c009100 | 1416 | gb = div_u64_rem(limit >> 20, 1024, &mb); |
956b9ba1 JP |
1417 | edac_dbg(0, "RIR#%d, limit: %u.%03u GB (0x%016Lx), way: %d\n", |
1418 | n_rir, | |
8c009100 | 1419 | gb, (mb*1000)/1024, |
956b9ba1 JP |
1420 | limit, |
1421 | 1 << RIR_WAY(reg)); | |
eebf11a0 MCC |
1422 | if (ch_addr <= limit) |
1423 | break; | |
1424 | } | |
1425 | if (n_rir == MAX_RIR_RANGES) { | |
1426 | sprintf(msg, "Can't discover the memory rank for ch addr 0x%08Lx", | |
1427 | ch_addr); | |
eebf11a0 MCC |
1428 | return -EINVAL; |
1429 | } | |
1430 | rir_way = RIR_WAY(reg); | |
50d1bb93 | 1431 | |
eebf11a0 MCC |
1432 | if (pvt->is_close_pg) |
1433 | idx = (ch_addr >> 6); | |
1434 | else | |
1435 | idx = (ch_addr >> 13); /* FIXME: Datasheet says to shift by 15 */ | |
1436 | idx %= 1 << rir_way; | |
1437 | ||
1438 | pci_read_config_dword(pvt->pci_tad[base_ch], | |
1439 | rir_offset[n_rir][idx], | |
1440 | ®); | |
1441 | *rank = RIR_RNK_TGT(reg); | |
1442 | ||
956b9ba1 JP |
1443 | edac_dbg(0, "RIR#%d: channel address 0x%08Lx < 0x%08Lx, RIR interleave %d, index %d\n", |
1444 | n_rir, | |
1445 | ch_addr, | |
1446 | limit, | |
1447 | rir_way, | |
1448 | idx); | |
eebf11a0 MCC |
1449 | |
1450 | return 0; | |
1451 | } | |
1452 | ||
1453 | /**************************************************************************** | |
1454 | Device initialization routines: put/get, init/exit | |
1455 | ****************************************************************************/ | |
1456 | ||
1457 | /* | |
1458 | * sbridge_put_all_devices 'put' all the devices that we have | |
1459 | * reserved via 'get' | |
1460 | */ | |
1461 | static void sbridge_put_devices(struct sbridge_dev *sbridge_dev) | |
1462 | { | |
1463 | int i; | |
1464 | ||
956b9ba1 | 1465 | edac_dbg(0, "\n"); |
eebf11a0 MCC |
1466 | for (i = 0; i < sbridge_dev->n_devs; i++) { |
1467 | struct pci_dev *pdev = sbridge_dev->pdev[i]; | |
1468 | if (!pdev) | |
1469 | continue; | |
956b9ba1 JP |
1470 | edac_dbg(0, "Removing dev %02x:%02x.%d\n", |
1471 | pdev->bus->number, | |
1472 | PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)); | |
eebf11a0 MCC |
1473 | pci_dev_put(pdev); |
1474 | } | |
1475 | } | |
1476 | ||
1477 | static void sbridge_put_all_devices(void) | |
1478 | { | |
1479 | struct sbridge_dev *sbridge_dev, *tmp; | |
1480 | ||
1481 | list_for_each_entry_safe(sbridge_dev, tmp, &sbridge_edac_list, list) { | |
1482 | sbridge_put_devices(sbridge_dev); | |
1483 | free_sbridge_dev(sbridge_dev); | |
1484 | } | |
1485 | } | |
1486 | ||
eebf11a0 MCC |
1487 | static int sbridge_get_onedevice(struct pci_dev **prev, |
1488 | u8 *num_mc, | |
1489 | const struct pci_id_table *table, | |
1490 | const unsigned devno) | |
1491 | { | |
1492 | struct sbridge_dev *sbridge_dev; | |
1493 | const struct pci_id_descr *dev_descr = &table->descr[devno]; | |
eebf11a0 MCC |
1494 | struct pci_dev *pdev = NULL; |
1495 | u8 bus = 0; | |
1496 | ||
ec5a0b38 | 1497 | sbridge_printk(KERN_DEBUG, |
dbc954dd | 1498 | "Seeking for: PCI ID %04x:%04x\n", |
eebf11a0 MCC |
1499 | PCI_VENDOR_ID_INTEL, dev_descr->dev_id); |
1500 | ||
1501 | pdev = pci_get_device(PCI_VENDOR_ID_INTEL, | |
1502 | dev_descr->dev_id, *prev); | |
1503 | ||
1504 | if (!pdev) { | |
1505 | if (*prev) { | |
1506 | *prev = pdev; | |
1507 | return 0; | |
1508 | } | |
1509 | ||
1510 | if (dev_descr->optional) | |
1511 | return 0; | |
1512 | ||
dbc954dd | 1513 | /* if the HA wasn't found */ |
eebf11a0 MCC |
1514 | if (devno == 0) |
1515 | return -ENODEV; | |
1516 | ||
1517 | sbridge_printk(KERN_INFO, | |
dbc954dd | 1518 | "Device not found: %04x:%04x\n", |
eebf11a0 MCC |
1519 | PCI_VENDOR_ID_INTEL, dev_descr->dev_id); |
1520 | ||
1521 | /* End of list, leave */ | |
1522 | return -ENODEV; | |
1523 | } | |
1524 | bus = pdev->bus->number; | |
1525 | ||
1526 | sbridge_dev = get_sbridge_dev(bus); | |
1527 | if (!sbridge_dev) { | |
1528 | sbridge_dev = alloc_sbridge_dev(bus, table); | |
1529 | if (!sbridge_dev) { | |
1530 | pci_dev_put(pdev); | |
1531 | return -ENOMEM; | |
1532 | } | |
1533 | (*num_mc)++; | |
1534 | } | |
1535 | ||
1536 | if (sbridge_dev->pdev[devno]) { | |
1537 | sbridge_printk(KERN_ERR, | |
dbc954dd | 1538 | "Duplicated device for %04x:%04x\n", |
eebf11a0 MCC |
1539 | PCI_VENDOR_ID_INTEL, dev_descr->dev_id); |
1540 | pci_dev_put(pdev); | |
1541 | return -ENODEV; | |
1542 | } | |
1543 | ||
1544 | sbridge_dev->pdev[devno] = pdev; | |
1545 | ||
eebf11a0 MCC |
1546 | /* Be sure that the device is enabled */ |
1547 | if (unlikely(pci_enable_device(pdev) < 0)) { | |
1548 | sbridge_printk(KERN_ERR, | |
dbc954dd | 1549 | "Couldn't enable %04x:%04x\n", |
eebf11a0 MCC |
1550 | PCI_VENDOR_ID_INTEL, dev_descr->dev_id); |
1551 | return -ENODEV; | |
1552 | } | |
1553 | ||
dbc954dd | 1554 | edac_dbg(0, "Detected %04x:%04x\n", |
956b9ba1 | 1555 | PCI_VENDOR_ID_INTEL, dev_descr->dev_id); |
eebf11a0 MCC |
1556 | |
1557 | /* | |
1558 | * As stated on drivers/pci/search.c, the reference count for | |
1559 | * @from is always decremented if it is not %NULL. So, as we need | |
1560 | * to get all devices up to null, we need to do a get for the device | |
1561 | */ | |
1562 | pci_dev_get(pdev); | |
1563 | ||
1564 | *prev = pdev; | |
1565 | ||
1566 | return 0; | |
1567 | } | |
1568 | ||
5153a0f9 AR |
1569 | /* |
1570 | * sbridge_get_all_devices - Find and perform 'get' operation on the MCH's | |
dbc954dd | 1571 | * devices we want to reference for this driver. |
5153a0f9 | 1572 | * @num_mc: pointer to the memory controllers count, to be incremented in case |
c41afdca | 1573 | * of success. |
5153a0f9 AR |
1574 | * @table: model specific table |
1575 | * | |
1576 | * returns 0 in case of success or error code | |
1577 | */ | |
1578 | static int sbridge_get_all_devices(u8 *num_mc, | |
1579 | const struct pci_id_table *table) | |
eebf11a0 MCC |
1580 | { |
1581 | int i, rc; | |
1582 | struct pci_dev *pdev = NULL; | |
eebf11a0 MCC |
1583 | |
1584 | while (table && table->descr) { | |
1585 | for (i = 0; i < table->n_devs; i++) { | |
1586 | pdev = NULL; | |
1587 | do { | |
1588 | rc = sbridge_get_onedevice(&pdev, num_mc, | |
1589 | table, i); | |
1590 | if (rc < 0) { | |
1591 | if (i == 0) { | |
1592 | i = table->n_devs; | |
1593 | break; | |
1594 | } | |
1595 | sbridge_put_all_devices(); | |
1596 | return -ENODEV; | |
1597 | } | |
1598 | } while (pdev); | |
1599 | } | |
1600 | table++; | |
1601 | } | |
1602 | ||
1603 | return 0; | |
1604 | } | |
1605 | ||
ea779b5a AR |
1606 | static int sbridge_mci_bind_devs(struct mem_ctl_info *mci, |
1607 | struct sbridge_dev *sbridge_dev) | |
eebf11a0 MCC |
1608 | { |
1609 | struct sbridge_pvt *pvt = mci->pvt_info; | |
1610 | struct pci_dev *pdev; | |
dbc954dd | 1611 | int i; |
eebf11a0 MCC |
1612 | |
1613 | for (i = 0; i < sbridge_dev->n_devs; i++) { | |
1614 | pdev = sbridge_dev->pdev[i]; | |
1615 | if (!pdev) | |
1616 | continue; | |
dbc954dd AR |
1617 | |
1618 | switch (pdev->device) { | |
1619 | case PCI_DEVICE_ID_INTEL_SBRIDGE_SAD0: | |
1620 | pvt->pci_sad0 = pdev; | |
eebf11a0 | 1621 | break; |
dbc954dd AR |
1622 | case PCI_DEVICE_ID_INTEL_SBRIDGE_SAD1: |
1623 | pvt->pci_sad1 = pdev; | |
eebf11a0 | 1624 | break; |
dbc954dd AR |
1625 | case PCI_DEVICE_ID_INTEL_SBRIDGE_BR: |
1626 | pvt->pci_br0 = pdev; | |
eebf11a0 | 1627 | break; |
dbc954dd AR |
1628 | case PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_HA0: |
1629 | pvt->pci_ha0 = pdev; | |
eebf11a0 | 1630 | break; |
dbc954dd AR |
1631 | case PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TA: |
1632 | pvt->pci_ta = pdev; | |
1633 | break; | |
1634 | case PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_RAS: | |
1635 | pvt->pci_ras = pdev; | |
1636 | break; | |
1637 | case PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD0: | |
1638 | case PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD1: | |
1639 | case PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD2: | |
1640 | case PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD3: | |
1641 | { | |
1642 | int id = pdev->device - PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD0; | |
1643 | pvt->pci_tad[id] = pdev; | |
1644 | } | |
1645 | break; | |
1646 | case PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_DDRIO: | |
1647 | pvt->pci_ddrio = pdev; | |
eebf11a0 MCC |
1648 | break; |
1649 | default: | |
1650 | goto error; | |
1651 | } | |
1652 | ||
dbc954dd AR |
1653 | edac_dbg(0, "Associated PCI %02x:%02x, bus %d with dev = %p\n", |
1654 | pdev->vendor, pdev->device, | |
956b9ba1 | 1655 | sbridge_dev->bus, |
956b9ba1 | 1656 | pdev); |
eebf11a0 MCC |
1657 | } |
1658 | ||
1659 | /* Check if everything were registered */ | |
1660 | if (!pvt->pci_sad0 || !pvt->pci_sad1 || !pvt->pci_ha0 || | |
de4772c6 | 1661 | !pvt-> pci_tad || !pvt->pci_ras || !pvt->pci_ta) |
eebf11a0 MCC |
1662 | goto enodev; |
1663 | ||
1664 | for (i = 0; i < NUM_CHANNELS; i++) { | |
1665 | if (!pvt->pci_tad[i]) | |
1666 | goto enodev; | |
1667 | } | |
1668 | return 0; | |
1669 | ||
1670 | enodev: | |
1671 | sbridge_printk(KERN_ERR, "Some needed devices are missing\n"); | |
1672 | return -ENODEV; | |
1673 | ||
1674 | error: | |
dbc954dd AR |
1675 | sbridge_printk(KERN_ERR, "Unexpected device %02x:%02x\n", |
1676 | PCI_VENDOR_ID_INTEL, pdev->device); | |
eebf11a0 MCC |
1677 | return -EINVAL; |
1678 | } | |
1679 | ||
4d715a80 AR |
1680 | static int ibridge_mci_bind_devs(struct mem_ctl_info *mci, |
1681 | struct sbridge_dev *sbridge_dev) | |
1682 | { | |
1683 | struct sbridge_pvt *pvt = mci->pvt_info; | |
1684 | struct pci_dev *pdev, *tmp; | |
dbc954dd | 1685 | int i; |
4d715a80 AR |
1686 | bool mode_2ha = false; |
1687 | ||
1688 | tmp = pci_get_device(PCI_VENDOR_ID_INTEL, | |
1689 | PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1, NULL); | |
1690 | if (tmp) { | |
1691 | mode_2ha = true; | |
1692 | pci_dev_put(tmp); | |
1693 | } | |
1694 | ||
1695 | for (i = 0; i < sbridge_dev->n_devs; i++) { | |
1696 | pdev = sbridge_dev->pdev[i]; | |
1697 | if (!pdev) | |
1698 | continue; | |
4d715a80 | 1699 | |
dbc954dd AR |
1700 | switch (pdev->device) { |
1701 | case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0: | |
1702 | pvt->pci_ha0 = pdev; | |
1703 | break; | |
1704 | case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA: | |
1705 | pvt->pci_ta = pdev; | |
1706 | case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_RAS: | |
1707 | pvt->pci_ras = pdev; | |
1708 | break; | |
1709 | case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD2: | |
1710 | case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD3: | |
1711 | /* if we have 2 HAs active, channels 2 and 3 | |
1712 | * are in other device */ | |
1713 | if (mode_2ha) | |
4d715a80 | 1714 | break; |
dbc954dd AR |
1715 | /* fall through */ |
1716 | case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD0: | |
1717 | case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD1: | |
1718 | { | |
1719 | int id = pdev->device - PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD0; | |
1720 | pvt->pci_tad[id] = pdev; | |
1721 | } | |
4d715a80 | 1722 | break; |
dbc954dd AR |
1723 | case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_2HA_DDRIO0: |
1724 | pvt->pci_ddrio = pdev; | |
1725 | break; | |
1726 | case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_1HA_DDRIO0: | |
1727 | if (!mode_2ha) | |
4d715a80 | 1728 | pvt->pci_ddrio = pdev; |
4d715a80 | 1729 | break; |
dbc954dd AR |
1730 | case PCI_DEVICE_ID_INTEL_IBRIDGE_SAD: |
1731 | pvt->pci_sad0 = pdev; | |
1732 | break; | |
1733 | case PCI_DEVICE_ID_INTEL_IBRIDGE_BR0: | |
1734 | pvt->pci_br0 = pdev; | |
1735 | break; | |
1736 | case PCI_DEVICE_ID_INTEL_IBRIDGE_BR1: | |
1737 | pvt->pci_br1 = pdev; | |
1738 | break; | |
1739 | case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1: | |
1740 | pvt->pci_ha1 = pdev; | |
1741 | break; | |
1742 | case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD0: | |
1743 | case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD1: | |
1744 | { | |
1745 | int id = pdev->device - PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD0 + 2; | |
1746 | ||
4d715a80 AR |
1747 | /* we shouldn't have this device if we have just one |
1748 | * HA present */ | |
1749 | WARN_ON(!mode_2ha); | |
dbc954dd AR |
1750 | pvt->pci_tad[id] = pdev; |
1751 | } | |
1752 | break; | |
4d715a80 AR |
1753 | default: |
1754 | goto error; | |
1755 | } | |
1756 | ||
1757 | edac_dbg(0, "Associated PCI %02x.%02d.%d with dev = %p\n", | |
1758 | sbridge_dev->bus, | |
1759 | PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), | |
1760 | pdev); | |
1761 | } | |
1762 | ||
1763 | /* Check if everything were registered */ | |
1764 | if (!pvt->pci_sad0 || !pvt->pci_ha0 || !pvt->pci_br0 || | |
1765 | !pvt->pci_br1 || !pvt->pci_tad || !pvt->pci_ras || | |
1766 | !pvt->pci_ta) | |
1767 | goto enodev; | |
1768 | ||
1769 | for (i = 0; i < NUM_CHANNELS; i++) { | |
1770 | if (!pvt->pci_tad[i]) | |
1771 | goto enodev; | |
1772 | } | |
1773 | return 0; | |
1774 | ||
1775 | enodev: | |
1776 | sbridge_printk(KERN_ERR, "Some needed devices are missing\n"); | |
1777 | return -ENODEV; | |
1778 | ||
1779 | error: | |
1780 | sbridge_printk(KERN_ERR, | |
dbc954dd AR |
1781 | "Unexpected device %02x:%02x\n", PCI_VENDOR_ID_INTEL, |
1782 | pdev->device); | |
4d715a80 AR |
1783 | return -EINVAL; |
1784 | } | |
1785 | ||
50d1bb93 AR |
1786 | static int haswell_mci_bind_devs(struct mem_ctl_info *mci, |
1787 | struct sbridge_dev *sbridge_dev) | |
1788 | { | |
1789 | struct sbridge_pvt *pvt = mci->pvt_info; | |
1790 | struct pci_dev *pdev, *tmp; | |
1791 | int i; | |
1792 | bool mode_2ha = false; | |
1793 | ||
1794 | tmp = pci_get_device(PCI_VENDOR_ID_INTEL, | |
1795 | PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1, NULL); | |
1796 | if (tmp) { | |
1797 | mode_2ha = true; | |
1798 | pci_dev_put(tmp); | |
1799 | } | |
1800 | ||
1801 | /* there's only one device per system; not tied to any bus */ | |
1802 | if (pvt->info.pci_vtd == NULL) | |
1803 | /* result will be checked later */ | |
1804 | pvt->info.pci_vtd = pci_get_device(PCI_VENDOR_ID_INTEL, | |
1805 | PCI_DEVICE_ID_INTEL_HASWELL_IMC_VTD_MISC, | |
1806 | NULL); | |
1807 | ||
1808 | for (i = 0; i < sbridge_dev->n_devs; i++) { | |
1809 | pdev = sbridge_dev->pdev[i]; | |
1810 | if (!pdev) | |
1811 | continue; | |
1812 | ||
1813 | switch (pdev->device) { | |
1814 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_CBO_SAD0: | |
1815 | pvt->pci_sad0 = pdev; | |
1816 | break; | |
1817 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_CBO_SAD1: | |
1818 | pvt->pci_sad1 = pdev; | |
1819 | break; | |
1820 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0: | |
1821 | pvt->pci_ha0 = pdev; | |
1822 | break; | |
1823 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TA: | |
1824 | pvt->pci_ta = pdev; | |
1825 | break; | |
1826 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_THERMAL: | |
1827 | pvt->pci_ras = pdev; | |
1828 | break; | |
1829 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TAD0: | |
1830 | pvt->pci_tad[0] = pdev; | |
1831 | break; | |
1832 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TAD1: | |
1833 | pvt->pci_tad[1] = pdev; | |
1834 | break; | |
1835 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TAD2: | |
1836 | if (!mode_2ha) | |
1837 | pvt->pci_tad[2] = pdev; | |
1838 | break; | |
1839 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TAD3: | |
1840 | if (!mode_2ha) | |
1841 | pvt->pci_tad[3] = pdev; | |
1842 | break; | |
1843 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_DDRIO0: | |
1844 | pvt->pci_ddrio = pdev; | |
1845 | break; | |
1846 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1: | |
1847 | pvt->pci_ha1 = pdev; | |
1848 | break; | |
1849 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_TA: | |
1850 | pvt->pci_ha1_ta = pdev; | |
1851 | break; | |
1852 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_TAD0: | |
1853 | if (mode_2ha) | |
1854 | pvt->pci_tad[2] = pdev; | |
1855 | break; | |
1856 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA1_TAD1: | |
1857 | if (mode_2ha) | |
1858 | pvt->pci_tad[3] = pdev; | |
1859 | break; | |
1860 | default: | |
1861 | break; | |
1862 | } | |
1863 | ||
1864 | edac_dbg(0, "Associated PCI %02x.%02d.%d with dev = %p\n", | |
1865 | sbridge_dev->bus, | |
1866 | PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), | |
1867 | pdev); | |
1868 | } | |
1869 | ||
1870 | /* Check if everything were registered */ | |
1871 | if (!pvt->pci_sad0 || !pvt->pci_ha0 || !pvt->pci_sad1 || | |
1872 | !pvt->pci_ras || !pvt->pci_ta || !pvt->info.pci_vtd) | |
1873 | goto enodev; | |
1874 | ||
1875 | for (i = 0; i < NUM_CHANNELS; i++) { | |
1876 | if (!pvt->pci_tad[i]) | |
1877 | goto enodev; | |
1878 | } | |
1879 | return 0; | |
1880 | ||
1881 | enodev: | |
1882 | sbridge_printk(KERN_ERR, "Some needed devices are missing\n"); | |
1883 | return -ENODEV; | |
1884 | } | |
1885 | ||
1f39581a TL |
1886 | static int broadwell_mci_bind_devs(struct mem_ctl_info *mci, |
1887 | struct sbridge_dev *sbridge_dev) | |
1888 | { | |
1889 | struct sbridge_pvt *pvt = mci->pvt_info; | |
1890 | struct pci_dev *pdev; | |
1891 | int i; | |
1892 | ||
1893 | /* there's only one device per system; not tied to any bus */ | |
1894 | if (pvt->info.pci_vtd == NULL) | |
1895 | /* result will be checked later */ | |
1896 | pvt->info.pci_vtd = pci_get_device(PCI_VENDOR_ID_INTEL, | |
1897 | PCI_DEVICE_ID_INTEL_BROADWELL_IMC_VTD_MISC, | |
1898 | NULL); | |
1899 | ||
1900 | for (i = 0; i < sbridge_dev->n_devs; i++) { | |
1901 | pdev = sbridge_dev->pdev[i]; | |
1902 | if (!pdev) | |
1903 | continue; | |
1904 | ||
1905 | switch (pdev->device) { | |
1906 | case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_CBO_SAD0: | |
1907 | pvt->pci_sad0 = pdev; | |
1908 | break; | |
1909 | case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_CBO_SAD1: | |
1910 | pvt->pci_sad1 = pdev; | |
1911 | break; | |
1912 | case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0: | |
1913 | pvt->pci_ha0 = pdev; | |
1914 | break; | |
1915 | case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TA: | |
1916 | pvt->pci_ta = pdev; | |
1917 | break; | |
1918 | case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_THERMAL: | |
1919 | pvt->pci_ras = pdev; | |
1920 | break; | |
1921 | case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD0: | |
1922 | pvt->pci_tad[0] = pdev; | |
1923 | break; | |
1924 | case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD1: | |
1925 | pvt->pci_tad[1] = pdev; | |
1926 | break; | |
1927 | case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD2: | |
1928 | pvt->pci_tad[2] = pdev; | |
1929 | break; | |
1930 | case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD3: | |
1931 | pvt->pci_tad[3] = pdev; | |
1932 | break; | |
1933 | case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_DDRIO0: | |
1934 | pvt->pci_ddrio = pdev; | |
1935 | break; | |
1936 | default: | |
1937 | break; | |
1938 | } | |
1939 | ||
1940 | edac_dbg(0, "Associated PCI %02x.%02d.%d with dev = %p\n", | |
1941 | sbridge_dev->bus, | |
1942 | PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), | |
1943 | pdev); | |
1944 | } | |
1945 | ||
1946 | /* Check if everything were registered */ | |
1947 | if (!pvt->pci_sad0 || !pvt->pci_ha0 || !pvt->pci_sad1 || | |
1948 | !pvt->pci_ras || !pvt->pci_ta || !pvt->info.pci_vtd) | |
1949 | goto enodev; | |
1950 | ||
1951 | for (i = 0; i < NUM_CHANNELS; i++) { | |
1952 | if (!pvt->pci_tad[i]) | |
1953 | goto enodev; | |
1954 | } | |
1955 | return 0; | |
1956 | ||
1957 | enodev: | |
1958 | sbridge_printk(KERN_ERR, "Some needed devices are missing\n"); | |
1959 | return -ENODEV; | |
1960 | } | |
1961 | ||
eebf11a0 MCC |
1962 | /**************************************************************************** |
1963 | Error check routines | |
1964 | ****************************************************************************/ | |
1965 | ||
1966 | /* | |
1967 | * While Sandy Bridge has error count registers, SMI BIOS read values from | |
1968 | * and resets the counters. So, they are not reliable for the OS to read | |
1969 | * from them. So, we have no option but to just trust on whatever MCE is | |
1970 | * telling us about the errors. | |
1971 | */ | |
1972 | static void sbridge_mce_output_error(struct mem_ctl_info *mci, | |
1973 | const struct mce *m) | |
1974 | { | |
1975 | struct mem_ctl_info *new_mci; | |
1976 | struct sbridge_pvt *pvt = mci->pvt_info; | |
c36e3e77 | 1977 | enum hw_event_mc_err_type tp_event; |
e17a2f42 | 1978 | char *type, *optype, msg[256]; |
eebf11a0 MCC |
1979 | bool ripv = GET_BITFIELD(m->mcgstatus, 0, 0); |
1980 | bool overflow = GET_BITFIELD(m->status, 62, 62); | |
1981 | bool uncorrected_error = GET_BITFIELD(m->status, 61, 61); | |
4d715a80 | 1982 | bool recoverable; |
eebf11a0 MCC |
1983 | u32 core_err_cnt = GET_BITFIELD(m->status, 38, 52); |
1984 | u32 mscod = GET_BITFIELD(m->status, 16, 31); | |
1985 | u32 errcode = GET_BITFIELD(m->status, 0, 15); | |
1986 | u32 channel = GET_BITFIELD(m->status, 0, 3); | |
1987 | u32 optypenum = GET_BITFIELD(m->status, 4, 6); | |
1988 | long channel_mask, first_channel; | |
1989 | u8 rank, socket; | |
c36e3e77 | 1990 | int rc, dimm; |
e17a2f42 | 1991 | char *area_type = NULL; |
eebf11a0 | 1992 | |
4d715a80 AR |
1993 | if (pvt->info.type == IVY_BRIDGE) |
1994 | recoverable = true; | |
1995 | else | |
1996 | recoverable = GET_BITFIELD(m->status, 56, 56); | |
1997 | ||
c36e3e77 MCC |
1998 | if (uncorrected_error) { |
1999 | if (ripv) { | |
2000 | type = "FATAL"; | |
2001 | tp_event = HW_EVENT_ERR_FATAL; | |
2002 | } else { | |
2003 | type = "NON_FATAL"; | |
2004 | tp_event = HW_EVENT_ERR_UNCORRECTED; | |
2005 | } | |
2006 | } else { | |
2007 | type = "CORRECTED"; | |
2008 | tp_event = HW_EVENT_ERR_CORRECTED; | |
2009 | } | |
eebf11a0 MCC |
2010 | |
2011 | /* | |
15ed103a | 2012 | * According with Table 15-9 of the Intel Architecture spec vol 3A, |
eebf11a0 MCC |
2013 | * memory errors should fit in this mask: |
2014 | * 000f 0000 1mmm cccc (binary) | |
2015 | * where: | |
2016 | * f = Correction Report Filtering Bit. If 1, subsequent errors | |
2017 | * won't be shown | |
2018 | * mmm = error type | |
2019 | * cccc = channel | |
2020 | * If the mask doesn't match, report an error to the parsing logic | |
2021 | */ | |
2022 | if (! ((errcode & 0xef80) == 0x80)) { | |
2023 | optype = "Can't parse: it is not a mem"; | |
2024 | } else { | |
2025 | switch (optypenum) { | |
2026 | case 0: | |
c36e3e77 | 2027 | optype = "generic undef request error"; |
eebf11a0 MCC |
2028 | break; |
2029 | case 1: | |
c36e3e77 | 2030 | optype = "memory read error"; |
eebf11a0 MCC |
2031 | break; |
2032 | case 2: | |
c36e3e77 | 2033 | optype = "memory write error"; |
eebf11a0 MCC |
2034 | break; |
2035 | case 3: | |
c36e3e77 | 2036 | optype = "addr/cmd error"; |
eebf11a0 MCC |
2037 | break; |
2038 | case 4: | |
c36e3e77 | 2039 | optype = "memory scrubbing error"; |
eebf11a0 MCC |
2040 | break; |
2041 | default: | |
2042 | optype = "reserved"; | |
2043 | break; | |
2044 | } | |
2045 | } | |
2046 | ||
be3036d2 AR |
2047 | /* Only decode errors with an valid address (ADDRV) */ |
2048 | if (!GET_BITFIELD(m->status, 58, 58)) | |
2049 | return; | |
2050 | ||
eebf11a0 | 2051 | rc = get_memory_error_data(mci, m->addr, &socket, |
e17a2f42 | 2052 | &channel_mask, &rank, &area_type, msg); |
eebf11a0 | 2053 | if (rc < 0) |
c36e3e77 | 2054 | goto err_parsing; |
eebf11a0 MCC |
2055 | new_mci = get_mci_for_node_id(socket); |
2056 | if (!new_mci) { | |
c36e3e77 MCC |
2057 | strcpy(msg, "Error: socket got corrupted!"); |
2058 | goto err_parsing; | |
eebf11a0 MCC |
2059 | } |
2060 | mci = new_mci; | |
2061 | pvt = mci->pvt_info; | |
2062 | ||
2063 | first_channel = find_first_bit(&channel_mask, NUM_CHANNELS); | |
2064 | ||
2065 | if (rank < 4) | |
2066 | dimm = 0; | |
2067 | else if (rank < 8) | |
2068 | dimm = 1; | |
2069 | else | |
2070 | dimm = 2; | |
2071 | ||
eebf11a0 MCC |
2072 | |
2073 | /* | |
e17a2f42 MCC |
2074 | * FIXME: On some memory configurations (mirror, lockstep), the |
2075 | * Memory Controller can't point the error to a single DIMM. The | |
2076 | * EDAC core should be handling the channel mask, in order to point | |
2077 | * to the group of dimm's where the error may be happening. | |
eebf11a0 | 2078 | */ |
d7c660b7 AR |
2079 | if (!pvt->is_lockstep && !pvt->is_mirrored && !pvt->is_close_pg) |
2080 | channel = first_channel; | |
2081 | ||
c36e3e77 | 2082 | snprintf(msg, sizeof(msg), |
c1053839 | 2083 | "%s%s area:%s err_code:%04x:%04x socket:%d channel_mask:%ld rank:%d", |
e17a2f42 MCC |
2084 | overflow ? " OVERFLOW" : "", |
2085 | (uncorrected_error && recoverable) ? " recoverable" : "", | |
2086 | area_type, | |
2087 | mscod, errcode, | |
2088 | socket, | |
2089 | channel_mask, | |
2090 | rank); | |
eebf11a0 | 2091 | |
956b9ba1 | 2092 | edac_dbg(0, "%s\n", msg); |
eebf11a0 | 2093 | |
c36e3e77 MCC |
2094 | /* FIXME: need support for channel mask */ |
2095 | ||
351fc4a9 SJ |
2096 | if (channel == CHANNEL_UNSPECIFIED) |
2097 | channel = -1; | |
2098 | ||
eebf11a0 | 2099 | /* Call the helper to output message */ |
c1053839 | 2100 | edac_mc_handle_error(tp_event, mci, core_err_cnt, |
c36e3e77 MCC |
2101 | m->addr >> PAGE_SHIFT, m->addr & ~PAGE_MASK, 0, |
2102 | channel, dimm, -1, | |
03f7eae8 | 2103 | optype, msg); |
c36e3e77 MCC |
2104 | return; |
2105 | err_parsing: | |
c1053839 | 2106 | edac_mc_handle_error(tp_event, mci, core_err_cnt, 0, 0, 0, |
c36e3e77 | 2107 | -1, -1, -1, |
03f7eae8 | 2108 | msg, ""); |
eebf11a0 | 2109 | |
eebf11a0 MCC |
2110 | } |
2111 | ||
2112 | /* | |
2113 | * sbridge_check_error Retrieve and process errors reported by the | |
2114 | * hardware. Called by the Core module. | |
2115 | */ | |
2116 | static void sbridge_check_error(struct mem_ctl_info *mci) | |
2117 | { | |
2118 | struct sbridge_pvt *pvt = mci->pvt_info; | |
2119 | int i; | |
2120 | unsigned count = 0; | |
2121 | struct mce *m; | |
2122 | ||
2123 | /* | |
2124 | * MCE first step: Copy all mce errors into a temporary buffer | |
2125 | * We use a double buffering here, to reduce the risk of | |
2126 | * loosing an error. | |
2127 | */ | |
2128 | smp_rmb(); | |
2129 | count = (pvt->mce_out + MCE_LOG_LEN - pvt->mce_in) | |
2130 | % MCE_LOG_LEN; | |
2131 | if (!count) | |
2132 | return; | |
2133 | ||
2134 | m = pvt->mce_outentry; | |
2135 | if (pvt->mce_in + count > MCE_LOG_LEN) { | |
2136 | unsigned l = MCE_LOG_LEN - pvt->mce_in; | |
2137 | ||
2138 | memcpy(m, &pvt->mce_entry[pvt->mce_in], sizeof(*m) * l); | |
2139 | smp_wmb(); | |
2140 | pvt->mce_in = 0; | |
2141 | count -= l; | |
2142 | m += l; | |
2143 | } | |
2144 | memcpy(m, &pvt->mce_entry[pvt->mce_in], sizeof(*m) * count); | |
2145 | smp_wmb(); | |
2146 | pvt->mce_in += count; | |
2147 | ||
2148 | smp_rmb(); | |
2149 | if (pvt->mce_overrun) { | |
2150 | sbridge_printk(KERN_ERR, "Lost %d memory errors\n", | |
2151 | pvt->mce_overrun); | |
2152 | smp_wmb(); | |
2153 | pvt->mce_overrun = 0; | |
2154 | } | |
2155 | ||
2156 | /* | |
2157 | * MCE second step: parse errors and display | |
2158 | */ | |
2159 | for (i = 0; i < count; i++) | |
2160 | sbridge_mce_output_error(mci, &pvt->mce_outentry[i]); | |
2161 | } | |
2162 | ||
2163 | /* | |
2164 | * sbridge_mce_check_error Replicates mcelog routine to get errors | |
2165 | * This routine simply queues mcelog errors, and | |
2166 | * return. The error itself should be handled later | |
2167 | * by sbridge_check_error. | |
2168 | * WARNING: As this routine should be called at NMI time, extra care should | |
2169 | * be taken to avoid deadlocks, and to be as fast as possible. | |
2170 | */ | |
3d78c9af MCC |
2171 | static int sbridge_mce_check_error(struct notifier_block *nb, unsigned long val, |
2172 | void *data) | |
eebf11a0 | 2173 | { |
3d78c9af MCC |
2174 | struct mce *mce = (struct mce *)data; |
2175 | struct mem_ctl_info *mci; | |
2176 | struct sbridge_pvt *pvt; | |
cf40f80c | 2177 | char *type; |
3d78c9af | 2178 | |
fd521039 CG |
2179 | if (get_edac_report_status() == EDAC_REPORTING_DISABLED) |
2180 | return NOTIFY_DONE; | |
2181 | ||
3d78c9af MCC |
2182 | mci = get_mci_for_node_id(mce->socketid); |
2183 | if (!mci) | |
2184 | return NOTIFY_BAD; | |
2185 | pvt = mci->pvt_info; | |
eebf11a0 MCC |
2186 | |
2187 | /* | |
2188 | * Just let mcelog handle it if the error is | |
2189 | * outside the memory controller. A memory error | |
2190 | * is indicated by bit 7 = 1 and bits = 8-11,13-15 = 0. | |
2191 | * bit 12 has an special meaning. | |
2192 | */ | |
2193 | if ((mce->status & 0xefff) >> 7 != 1) | |
3d78c9af | 2194 | return NOTIFY_DONE; |
eebf11a0 | 2195 | |
cf40f80c AR |
2196 | if (mce->mcgstatus & MCG_STATUS_MCIP) |
2197 | type = "Exception"; | |
2198 | else | |
2199 | type = "Event"; | |
2200 | ||
49856dc9 | 2201 | sbridge_mc_printk(mci, KERN_DEBUG, "HANDLING MCE MEMORY ERROR\n"); |
eebf11a0 | 2202 | |
49856dc9 AR |
2203 | sbridge_mc_printk(mci, KERN_DEBUG, "CPU %d: Machine Check %s: %Lx " |
2204 | "Bank %d: %016Lx\n", mce->extcpu, type, | |
2205 | mce->mcgstatus, mce->bank, mce->status); | |
2206 | sbridge_mc_printk(mci, KERN_DEBUG, "TSC %llx ", mce->tsc); | |
2207 | sbridge_mc_printk(mci, KERN_DEBUG, "ADDR %llx ", mce->addr); | |
2208 | sbridge_mc_printk(mci, KERN_DEBUG, "MISC %llx ", mce->misc); | |
eebf11a0 | 2209 | |
49856dc9 AR |
2210 | sbridge_mc_printk(mci, KERN_DEBUG, "PROCESSOR %u:%x TIME %llu SOCKET " |
2211 | "%u APIC %x\n", mce->cpuvendor, mce->cpuid, | |
2212 | mce->time, mce->socketid, mce->apicid); | |
eebf11a0 | 2213 | |
eebf11a0 MCC |
2214 | smp_rmb(); |
2215 | if ((pvt->mce_out + 1) % MCE_LOG_LEN == pvt->mce_in) { | |
2216 | smp_wmb(); | |
2217 | pvt->mce_overrun++; | |
3d78c9af | 2218 | return NOTIFY_DONE; |
eebf11a0 MCC |
2219 | } |
2220 | ||
2221 | /* Copy memory error at the ringbuffer */ | |
2222 | memcpy(&pvt->mce_entry[pvt->mce_out], mce, sizeof(*mce)); | |
2223 | smp_wmb(); | |
2224 | pvt->mce_out = (pvt->mce_out + 1) % MCE_LOG_LEN; | |
2225 | ||
2226 | /* Handle fatal errors immediately */ | |
2227 | if (mce->mcgstatus & 1) | |
2228 | sbridge_check_error(mci); | |
2229 | ||
2230 | /* Advice mcelog that the error were handled */ | |
3d78c9af | 2231 | return NOTIFY_STOP; |
eebf11a0 MCC |
2232 | } |
2233 | ||
3d78c9af MCC |
2234 | static struct notifier_block sbridge_mce_dec = { |
2235 | .notifier_call = sbridge_mce_check_error, | |
2236 | }; | |
2237 | ||
eebf11a0 MCC |
2238 | /**************************************************************************** |
2239 | EDAC register/unregister logic | |
2240 | ****************************************************************************/ | |
2241 | ||
2242 | static void sbridge_unregister_mci(struct sbridge_dev *sbridge_dev) | |
2243 | { | |
2244 | struct mem_ctl_info *mci = sbridge_dev->mci; | |
2245 | struct sbridge_pvt *pvt; | |
2246 | ||
2247 | if (unlikely(!mci || !mci->pvt_info)) { | |
956b9ba1 | 2248 | edac_dbg(0, "MC: dev = %p\n", &sbridge_dev->pdev[0]->dev); |
eebf11a0 MCC |
2249 | |
2250 | sbridge_printk(KERN_ERR, "Couldn't find mci handler\n"); | |
2251 | return; | |
2252 | } | |
2253 | ||
2254 | pvt = mci->pvt_info; | |
2255 | ||
956b9ba1 JP |
2256 | edac_dbg(0, "MC: mci = %p, dev = %p\n", |
2257 | mci, &sbridge_dev->pdev[0]->dev); | |
eebf11a0 | 2258 | |
eebf11a0 | 2259 | /* Remove MC sysfs nodes */ |
fd687502 | 2260 | edac_mc_del_mc(mci->pdev); |
eebf11a0 | 2261 | |
956b9ba1 | 2262 | edac_dbg(1, "%s: free mci struct\n", mci->ctl_name); |
eebf11a0 MCC |
2263 | kfree(mci->ctl_name); |
2264 | edac_mc_free(mci); | |
2265 | sbridge_dev->mci = NULL; | |
2266 | } | |
2267 | ||
4d715a80 | 2268 | static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type) |
eebf11a0 MCC |
2269 | { |
2270 | struct mem_ctl_info *mci; | |
c36e3e77 | 2271 | struct edac_mc_layer layers[2]; |
eebf11a0 | 2272 | struct sbridge_pvt *pvt; |
4d715a80 | 2273 | struct pci_dev *pdev = sbridge_dev->pdev[0]; |
c36e3e77 | 2274 | int rc; |
eebf11a0 MCC |
2275 | |
2276 | /* Check the number of active and not disabled channels */ | |
dbc954dd | 2277 | rc = check_if_ecc_is_active(sbridge_dev->bus, type); |
eebf11a0 MCC |
2278 | if (unlikely(rc < 0)) |
2279 | return rc; | |
2280 | ||
2281 | /* allocate a new MC control structure */ | |
c36e3e77 MCC |
2282 | layers[0].type = EDAC_MC_LAYER_CHANNEL; |
2283 | layers[0].size = NUM_CHANNELS; | |
2284 | layers[0].is_virt_csrow = false; | |
2285 | layers[1].type = EDAC_MC_LAYER_SLOT; | |
2286 | layers[1].size = MAX_DIMMS; | |
2287 | layers[1].is_virt_csrow = true; | |
ca0907b9 | 2288 | mci = edac_mc_alloc(sbridge_dev->mc, ARRAY_SIZE(layers), layers, |
c36e3e77 MCC |
2289 | sizeof(*pvt)); |
2290 | ||
eebf11a0 MCC |
2291 | if (unlikely(!mci)) |
2292 | return -ENOMEM; | |
2293 | ||
956b9ba1 | 2294 | edac_dbg(0, "MC: mci = %p, dev = %p\n", |
4d715a80 | 2295 | mci, &pdev->dev); |
eebf11a0 MCC |
2296 | |
2297 | pvt = mci->pvt_info; | |
2298 | memset(pvt, 0, sizeof(*pvt)); | |
2299 | ||
2300 | /* Associate sbridge_dev and mci for future usage */ | |
2301 | pvt->sbridge_dev = sbridge_dev; | |
2302 | sbridge_dev->mci = mci; | |
2303 | ||
2304 | mci->mtype_cap = MEM_FLAG_DDR3; | |
2305 | mci->edac_ctl_cap = EDAC_FLAG_NONE; | |
2306 | mci->edac_cap = EDAC_FLAG_NONE; | |
2307 | mci->mod_name = "sbridge_edac.c"; | |
2308 | mci->mod_ver = SBRIDGE_REVISION; | |
4d715a80 | 2309 | mci->dev_name = pci_name(pdev); |
eebf11a0 MCC |
2310 | mci->ctl_page_to_phys = NULL; |
2311 | ||
2312 | /* Set the function pointer to an actual operation function */ | |
2313 | mci->edac_check = sbridge_check_error; | |
2314 | ||
4d715a80 | 2315 | pvt->info.type = type; |
50d1bb93 AR |
2316 | switch (type) { |
2317 | case IVY_BRIDGE: | |
4d715a80 AR |
2318 | pvt->info.rankcfgr = IB_RANK_CFG_A; |
2319 | pvt->info.get_tolm = ibridge_get_tolm; | |
2320 | pvt->info.get_tohm = ibridge_get_tohm; | |
2321 | pvt->info.dram_rule = ibridge_dram_rule; | |
9e375446 | 2322 | pvt->info.get_memory_type = get_memory_type; |
f14d6892 | 2323 | pvt->info.get_node_id = get_node_id; |
b976bcf2 | 2324 | pvt->info.rir_limit = rir_limit; |
4d715a80 AR |
2325 | pvt->info.max_sad = ARRAY_SIZE(ibridge_dram_rule); |
2326 | pvt->info.interleave_list = ibridge_interleave_list; | |
2327 | pvt->info.max_interleave = ARRAY_SIZE(ibridge_interleave_list); | |
2328 | pvt->info.interleave_pkg = ibridge_interleave_pkg; | |
2329 | mci->ctl_name = kasprintf(GFP_KERNEL, "Ivy Bridge Socket#%d", mci->mc_idx); | |
2330 | ||
2331 | /* Store pci devices at mci for faster access */ | |
2332 | rc = ibridge_mci_bind_devs(mci, sbridge_dev); | |
2333 | if (unlikely(rc < 0)) | |
2334 | goto fail0; | |
50d1bb93 AR |
2335 | break; |
2336 | case SANDY_BRIDGE: | |
4d715a80 AR |
2337 | pvt->info.rankcfgr = SB_RANK_CFG_A; |
2338 | pvt->info.get_tolm = sbridge_get_tolm; | |
2339 | pvt->info.get_tohm = sbridge_get_tohm; | |
2340 | pvt->info.dram_rule = sbridge_dram_rule; | |
9e375446 | 2341 | pvt->info.get_memory_type = get_memory_type; |
f14d6892 | 2342 | pvt->info.get_node_id = get_node_id; |
b976bcf2 | 2343 | pvt->info.rir_limit = rir_limit; |
4d715a80 AR |
2344 | pvt->info.max_sad = ARRAY_SIZE(sbridge_dram_rule); |
2345 | pvt->info.interleave_list = sbridge_interleave_list; | |
2346 | pvt->info.max_interleave = ARRAY_SIZE(sbridge_interleave_list); | |
2347 | pvt->info.interleave_pkg = sbridge_interleave_pkg; | |
2348 | mci->ctl_name = kasprintf(GFP_KERNEL, "Sandy Bridge Socket#%d", mci->mc_idx); | |
2349 | ||
2350 | /* Store pci devices at mci for faster access */ | |
2351 | rc = sbridge_mci_bind_devs(mci, sbridge_dev); | |
2352 | if (unlikely(rc < 0)) | |
2353 | goto fail0; | |
50d1bb93 AR |
2354 | break; |
2355 | case HASWELL: | |
2356 | /* rankcfgr isn't used */ | |
2357 | pvt->info.get_tolm = haswell_get_tolm; | |
2358 | pvt->info.get_tohm = haswell_get_tohm; | |
2359 | pvt->info.dram_rule = ibridge_dram_rule; | |
2360 | pvt->info.get_memory_type = haswell_get_memory_type; | |
2361 | pvt->info.get_node_id = haswell_get_node_id; | |
2362 | pvt->info.rir_limit = haswell_rir_limit; | |
2363 | pvt->info.max_sad = ARRAY_SIZE(ibridge_dram_rule); | |
2364 | pvt->info.interleave_list = ibridge_interleave_list; | |
2365 | pvt->info.max_interleave = ARRAY_SIZE(ibridge_interleave_list); | |
2366 | pvt->info.interleave_pkg = ibridge_interleave_pkg; | |
2367 | mci->ctl_name = kasprintf(GFP_KERNEL, "Haswell Socket#%d", mci->mc_idx); | |
4d715a80 | 2368 | |
50d1bb93 AR |
2369 | /* Store pci devices at mci for faster access */ |
2370 | rc = haswell_mci_bind_devs(mci, sbridge_dev); | |
2371 | if (unlikely(rc < 0)) | |
2372 | goto fail0; | |
2373 | break; | |
1f39581a TL |
2374 | case BROADWELL: |
2375 | /* rankcfgr isn't used */ | |
2376 | pvt->info.get_tolm = haswell_get_tolm; | |
2377 | pvt->info.get_tohm = haswell_get_tohm; | |
2378 | pvt->info.dram_rule = ibridge_dram_rule; | |
2379 | pvt->info.get_memory_type = haswell_get_memory_type; | |
2380 | pvt->info.get_node_id = haswell_get_node_id; | |
2381 | pvt->info.rir_limit = haswell_rir_limit; | |
2382 | pvt->info.max_sad = ARRAY_SIZE(ibridge_dram_rule); | |
2383 | pvt->info.interleave_list = ibridge_interleave_list; | |
2384 | pvt->info.max_interleave = ARRAY_SIZE(ibridge_interleave_list); | |
2385 | pvt->info.interleave_pkg = ibridge_interleave_pkg; | |
2386 | mci->ctl_name = kasprintf(GFP_KERNEL, "Broadwell Socket#%d", mci->mc_idx); | |
2387 | ||
2388 | /* Store pci devices at mci for faster access */ | |
2389 | rc = broadwell_mci_bind_devs(mci, sbridge_dev); | |
2390 | if (unlikely(rc < 0)) | |
2391 | goto fail0; | |
2392 | break; | |
50d1bb93 | 2393 | } |
eebf11a0 MCC |
2394 | |
2395 | /* Get dimm basic config and the memory layout */ | |
2396 | get_dimm_config(mci); | |
2397 | get_memory_layout(mci); | |
2398 | ||
2399 | /* record ptr to the generic device */ | |
4d715a80 | 2400 | mci->pdev = &pdev->dev; |
eebf11a0 MCC |
2401 | |
2402 | /* add this new MC control structure to EDAC's list of MCs */ | |
2403 | if (unlikely(edac_mc_add_mc(mci))) { | |
956b9ba1 | 2404 | edac_dbg(0, "MC: failed edac_mc_add_mc()\n"); |
eebf11a0 MCC |
2405 | rc = -EINVAL; |
2406 | goto fail0; | |
2407 | } | |
2408 | ||
eebf11a0 | 2409 | return 0; |
eebf11a0 MCC |
2410 | |
2411 | fail0: | |
2412 | kfree(mci->ctl_name); | |
2413 | edac_mc_free(mci); | |
2414 | sbridge_dev->mci = NULL; | |
2415 | return rc; | |
2416 | } | |
2417 | ||
2418 | /* | |
2419 | * sbridge_probe Probe for ONE instance of device to see if it is | |
2420 | * present. | |
2421 | * return: | |
2422 | * 0 for FOUND a device | |
2423 | * < 0 for error code | |
2424 | */ | |
2425 | ||
9b3c6e85 | 2426 | static int sbridge_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
eebf11a0 | 2427 | { |
50d1bb93 | 2428 | int rc = -ENODEV; |
eebf11a0 MCC |
2429 | u8 mc, num_mc = 0; |
2430 | struct sbridge_dev *sbridge_dev; | |
50d1bb93 | 2431 | enum type type = SANDY_BRIDGE; |
eebf11a0 MCC |
2432 | |
2433 | /* get the pci devices we want to reserve for our use */ | |
2434 | mutex_lock(&sbridge_edac_lock); | |
2435 | ||
2436 | /* | |
2437 | * All memory controllers are allocated at the first pass. | |
2438 | */ | |
2439 | if (unlikely(probed >= 1)) { | |
2440 | mutex_unlock(&sbridge_edac_lock); | |
2441 | return -ENODEV; | |
2442 | } | |
2443 | probed++; | |
2444 | ||
50d1bb93 AR |
2445 | switch (pdev->device) { |
2446 | case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA: | |
4d715a80 AR |
2447 | rc = sbridge_get_all_devices(&num_mc, pci_dev_descr_ibridge_table); |
2448 | type = IVY_BRIDGE; | |
50d1bb93 | 2449 | break; |
11249e73 | 2450 | case PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_HA0: |
4d715a80 AR |
2451 | rc = sbridge_get_all_devices(&num_mc, pci_dev_descr_sbridge_table); |
2452 | type = SANDY_BRIDGE; | |
50d1bb93 AR |
2453 | break; |
2454 | case PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0: | |
2455 | rc = sbridge_get_all_devices(&num_mc, pci_dev_descr_haswell_table); | |
2456 | type = HASWELL; | |
2457 | break; | |
1f39581a TL |
2458 | case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0: |
2459 | rc = sbridge_get_all_devices(&num_mc, pci_dev_descr_broadwell_table); | |
2460 | type = BROADWELL; | |
2461 | break; | |
4d715a80 | 2462 | } |
11249e73 BP |
2463 | if (unlikely(rc < 0)) { |
2464 | edac_dbg(0, "couldn't get all devices for 0x%x\n", pdev->device); | |
eebf11a0 | 2465 | goto fail0; |
11249e73 BP |
2466 | } |
2467 | ||
eebf11a0 MCC |
2468 | mc = 0; |
2469 | ||
2470 | list_for_each_entry(sbridge_dev, &sbridge_edac_list, list) { | |
956b9ba1 JP |
2471 | edac_dbg(0, "Registering MC#%d (%d of %d)\n", |
2472 | mc, mc + 1, num_mc); | |
50d1bb93 | 2473 | |
eebf11a0 | 2474 | sbridge_dev->mc = mc++; |
4d715a80 | 2475 | rc = sbridge_register_mci(sbridge_dev, type); |
eebf11a0 MCC |
2476 | if (unlikely(rc < 0)) |
2477 | goto fail1; | |
2478 | } | |
2479 | ||
11249e73 | 2480 | sbridge_printk(KERN_INFO, "%s\n", SBRIDGE_REVISION); |
eebf11a0 MCC |
2481 | |
2482 | mutex_unlock(&sbridge_edac_lock); | |
2483 | return 0; | |
2484 | ||
2485 | fail1: | |
2486 | list_for_each_entry(sbridge_dev, &sbridge_edac_list, list) | |
2487 | sbridge_unregister_mci(sbridge_dev); | |
2488 | ||
2489 | sbridge_put_all_devices(); | |
2490 | fail0: | |
2491 | mutex_unlock(&sbridge_edac_lock); | |
2492 | return rc; | |
2493 | } | |
2494 | ||
2495 | /* | |
2496 | * sbridge_remove destructor for one instance of device | |
2497 | * | |
2498 | */ | |
9b3c6e85 | 2499 | static void sbridge_remove(struct pci_dev *pdev) |
eebf11a0 MCC |
2500 | { |
2501 | struct sbridge_dev *sbridge_dev; | |
2502 | ||
956b9ba1 | 2503 | edac_dbg(0, "\n"); |
eebf11a0 MCC |
2504 | |
2505 | /* | |
2506 | * we have a trouble here: pdev value for removal will be wrong, since | |
2507 | * it will point to the X58 register used to detect that the machine | |
2508 | * is a Nehalem or upper design. However, due to the way several PCI | |
2509 | * devices are grouped together to provide MC functionality, we need | |
2510 | * to use a different method for releasing the devices | |
2511 | */ | |
2512 | ||
2513 | mutex_lock(&sbridge_edac_lock); | |
2514 | ||
2515 | if (unlikely(!probed)) { | |
2516 | mutex_unlock(&sbridge_edac_lock); | |
2517 | return; | |
2518 | } | |
2519 | ||
2520 | list_for_each_entry(sbridge_dev, &sbridge_edac_list, list) | |
2521 | sbridge_unregister_mci(sbridge_dev); | |
2522 | ||
2523 | /* Release PCI resources */ | |
2524 | sbridge_put_all_devices(); | |
2525 | ||
2526 | probed--; | |
2527 | ||
2528 | mutex_unlock(&sbridge_edac_lock); | |
2529 | } | |
2530 | ||
2531 | MODULE_DEVICE_TABLE(pci, sbridge_pci_tbl); | |
2532 | ||
2533 | /* | |
2534 | * sbridge_driver pci_driver structure for this module | |
2535 | * | |
2536 | */ | |
2537 | static struct pci_driver sbridge_driver = { | |
2538 | .name = "sbridge_edac", | |
2539 | .probe = sbridge_probe, | |
9b3c6e85 | 2540 | .remove = sbridge_remove, |
eebf11a0 MCC |
2541 | .id_table = sbridge_pci_tbl, |
2542 | }; | |
2543 | ||
2544 | /* | |
2545 | * sbridge_init Module entry function | |
2546 | * Try to initialize this module for its devices | |
2547 | */ | |
2548 | static int __init sbridge_init(void) | |
2549 | { | |
2550 | int pci_rc; | |
2551 | ||
956b9ba1 | 2552 | edac_dbg(2, "\n"); |
eebf11a0 MCC |
2553 | |
2554 | /* Ensure that the OPSTATE is set correctly for POLL or NMI */ | |
2555 | opstate_init(); | |
2556 | ||
2557 | pci_rc = pci_register_driver(&sbridge_driver); | |
e35fca47 CG |
2558 | if (pci_rc >= 0) { |
2559 | mce_register_decode_chain(&sbridge_mce_dec); | |
fd521039 CG |
2560 | if (get_edac_report_status() == EDAC_REPORTING_DISABLED) |
2561 | sbridge_printk(KERN_WARNING, "Loading driver, error reporting disabled.\n"); | |
eebf11a0 | 2562 | return 0; |
e35fca47 | 2563 | } |
eebf11a0 MCC |
2564 | |
2565 | sbridge_printk(KERN_ERR, "Failed to register device with error %d.\n", | |
2566 | pci_rc); | |
2567 | ||
2568 | return pci_rc; | |
2569 | } | |
2570 | ||
2571 | /* | |
2572 | * sbridge_exit() Module exit function | |
2573 | * Unregister the driver | |
2574 | */ | |
2575 | static void __exit sbridge_exit(void) | |
2576 | { | |
956b9ba1 | 2577 | edac_dbg(2, "\n"); |
eebf11a0 | 2578 | pci_unregister_driver(&sbridge_driver); |
e35fca47 | 2579 | mce_unregister_decode_chain(&sbridge_mce_dec); |
eebf11a0 MCC |
2580 | } |
2581 | ||
2582 | module_init(sbridge_init); | |
2583 | module_exit(sbridge_exit); | |
2584 | ||
2585 | module_param(edac_op_state, int, 0444); | |
2586 | MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI"); | |
2587 | ||
2588 | MODULE_LICENSE("GPL"); | |
37e59f87 | 2589 | MODULE_AUTHOR("Mauro Carvalho Chehab"); |
eebf11a0 | 2590 | MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com)"); |
4d715a80 | 2591 | MODULE_DESCRIPTION("MC Driver for Intel Sandy Bridge and Ivy Bridge memory controllers - " |
eebf11a0 | 2592 | SBRIDGE_REVISION); |