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Commit | Line | Data |
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09c434b8 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
2bc65418 | 2 | #include "amd64_edac.h" |
23ac4ae8 | 3 | #include <asm/amd_nb.h> |
2bc65418 | 4 | |
d1ea71cd | 5 | static struct edac_pci_ctl_info *pci_ctl; |
2bc65418 DT |
6 | |
7 | static int report_gart_errors; | |
8 | module_param(report_gart_errors, int, 0644); | |
9 | ||
10 | /* | |
11 | * Set by command line parameter. If BIOS has enabled the ECC, this override is | |
12 | * cleared to prevent re-enabling the hardware by this driver. | |
13 | */ | |
14 | static int ecc_enable_override; | |
15 | module_param(ecc_enable_override, int, 0644); | |
16 | ||
a29d8b8e | 17 | static struct msr __percpu *msrs; |
50542251 | 18 | |
2ec591ac | 19 | /* Per-node stuff */ |
ae7bb7c6 | 20 | static struct ecc_settings **ecc_stngs; |
2bc65418 | 21 | |
bdcee774 YG |
22 | /* Number of Unified Memory Controllers */ |
23 | static u8 num_umcs; | |
24 | ||
b70ef010 BP |
25 | /* |
26 | * Valid scrub rates for the K8 hardware memory scrubber. We map the scrubbing | |
27 | * bandwidth to a valid bit pattern. The 'set' operation finds the 'matching- | |
28 | * or higher value'. | |
29 | * | |
30 | *FIXME: Produce a better mapping/linearisation. | |
31 | */ | |
c7e5301a | 32 | static const struct scrubrate { |
39094443 BP |
33 | u32 scrubval; /* bit pattern for scrub rate */ |
34 | u32 bandwidth; /* bandwidth consumed (bytes/sec) */ | |
35 | } scrubrates[] = { | |
b70ef010 BP |
36 | { 0x01, 1600000000UL}, |
37 | { 0x02, 800000000UL}, | |
38 | { 0x03, 400000000UL}, | |
39 | { 0x04, 200000000UL}, | |
40 | { 0x05, 100000000UL}, | |
41 | { 0x06, 50000000UL}, | |
42 | { 0x07, 25000000UL}, | |
43 | { 0x08, 12284069UL}, | |
44 | { 0x09, 6274509UL}, | |
45 | { 0x0A, 3121951UL}, | |
46 | { 0x0B, 1560975UL}, | |
47 | { 0x0C, 781440UL}, | |
48 | { 0x0D, 390720UL}, | |
49 | { 0x0E, 195300UL}, | |
50 | { 0x0F, 97650UL}, | |
51 | { 0x10, 48854UL}, | |
52 | { 0x11, 24427UL}, | |
53 | { 0x12, 12213UL}, | |
54 | { 0x13, 6101UL}, | |
55 | { 0x14, 3051UL}, | |
56 | { 0x15, 1523UL}, | |
57 | { 0x16, 761UL}, | |
58 | { 0x00, 0UL}, /* scrubbing off */ | |
59 | }; | |
60 | ||
66fed2d4 BP |
61 | int __amd64_read_pci_cfg_dword(struct pci_dev *pdev, int offset, |
62 | u32 *val, const char *func) | |
b2b0c605 BP |
63 | { |
64 | int err = 0; | |
65 | ||
66 | err = pci_read_config_dword(pdev, offset, val); | |
67 | if (err) | |
68 | amd64_warn("%s: error reading F%dx%03x.\n", | |
69 | func, PCI_FUNC(pdev->devfn), offset); | |
70 | ||
71 | return err; | |
72 | } | |
73 | ||
74 | int __amd64_write_pci_cfg_dword(struct pci_dev *pdev, int offset, | |
75 | u32 val, const char *func) | |
76 | { | |
77 | int err = 0; | |
78 | ||
79 | err = pci_write_config_dword(pdev, offset, val); | |
80 | if (err) | |
81 | amd64_warn("%s: error writing to F%dx%03x.\n", | |
82 | func, PCI_FUNC(pdev->devfn), offset); | |
83 | ||
84 | return err; | |
85 | } | |
86 | ||
7981a28f AG |
87 | /* |
88 | * Select DCT to which PCI cfg accesses are routed | |
89 | */ | |
90 | static void f15h_select_dct(struct amd64_pvt *pvt, u8 dct) | |
91 | { | |
92 | u32 reg = 0; | |
93 | ||
94 | amd64_read_pci_cfg(pvt->F1, DCT_CFG_SEL, ®); | |
95 | reg &= (pvt->model == 0x30) ? ~3 : ~1; | |
96 | reg |= dct; | |
97 | amd64_write_pci_cfg(pvt->F1, DCT_CFG_SEL, reg); | |
98 | } | |
99 | ||
b2b0c605 BP |
100 | /* |
101 | * | |
102 | * Depending on the family, F2 DCT reads need special handling: | |
103 | * | |
7981a28f | 104 | * K8: has a single DCT only and no address offsets >= 0x100 |
b2b0c605 BP |
105 | * |
106 | * F10h: each DCT has its own set of regs | |
107 | * DCT0 -> F2x040.. | |
108 | * DCT1 -> F2x140.. | |
109 | * | |
94c1acf2 | 110 | * F16h: has only 1 DCT |
7981a28f AG |
111 | * |
112 | * F15h: we select which DCT we access using F1x10C[DctCfgSel] | |
b2b0c605 | 113 | */ |
7981a28f AG |
114 | static inline int amd64_read_dct_pci_cfg(struct amd64_pvt *pvt, u8 dct, |
115 | int offset, u32 *val) | |
b2b0c605 | 116 | { |
7981a28f AG |
117 | switch (pvt->fam) { |
118 | case 0xf: | |
119 | if (dct || offset >= 0x100) | |
120 | return -EINVAL; | |
121 | break; | |
b2b0c605 | 122 | |
7981a28f AG |
123 | case 0x10: |
124 | if (dct) { | |
125 | /* | |
126 | * Note: If ganging is enabled, barring the regs | |
127 | * F2x[1,0]98 and F2x[1,0]9C; reads reads to F2x1xx | |
128 | * return 0. (cf. Section 2.8.1 F10h BKDG) | |
129 | */ | |
130 | if (dct_ganging_enabled(pvt)) | |
131 | return 0; | |
b2b0c605 | 132 | |
7981a28f AG |
133 | offset += 0x100; |
134 | } | |
135 | break; | |
73ba8593 | 136 | |
7981a28f AG |
137 | case 0x15: |
138 | /* | |
139 | * F15h: F2x1xx addresses do not map explicitly to DCT1. | |
140 | * We should select which DCT we access using F1x10C[DctCfgSel] | |
141 | */ | |
142 | dct = (dct && pvt->model == 0x30) ? 3 : dct; | |
143 | f15h_select_dct(pvt, dct); | |
144 | break; | |
73ba8593 | 145 | |
7981a28f AG |
146 | case 0x16: |
147 | if (dct) | |
148 | return -EINVAL; | |
149 | break; | |
b2b0c605 | 150 | |
7981a28f AG |
151 | default: |
152 | break; | |
b2b0c605 | 153 | } |
7981a28f | 154 | return amd64_read_pci_cfg(pvt->F2, offset, val); |
b2b0c605 BP |
155 | } |
156 | ||
2bc65418 DT |
157 | /* |
158 | * Memory scrubber control interface. For K8, memory scrubbing is handled by | |
159 | * hardware and can involve L2 cache, dcache as well as the main memory. With | |
160 | * F10, this is extended to L3 cache scrubbing on CPU models sporting that | |
161 | * functionality. | |
162 | * | |
163 | * This causes the "units" for the scrubbing speed to vary from 64 byte blocks | |
164 | * (dram) over to cache lines. This is nasty, so we will use bandwidth in | |
165 | * bytes/sec for the setting. | |
166 | * | |
167 | * Currently, we only do dram scrubbing. If the scrubbing is done in software on | |
168 | * other archs, we might not have access to the caches directly. | |
169 | */ | |
170 | ||
8051c0af YG |
171 | static inline void __f17h_set_scrubval(struct amd64_pvt *pvt, u32 scrubval) |
172 | { | |
173 | /* | |
174 | * Fam17h supports scrub values between 0x5 and 0x14. Also, the values | |
175 | * are shifted down by 0x5, so scrubval 0x5 is written to the register | |
176 | * as 0x0, scrubval 0x6 as 0x1, etc. | |
177 | */ | |
178 | if (scrubval >= 0x5 && scrubval <= 0x14) { | |
179 | scrubval -= 0x5; | |
180 | pci_write_bits32(pvt->F6, F17H_SCR_LIMIT_ADDR, scrubval, 0xF); | |
181 | pci_write_bits32(pvt->F6, F17H_SCR_BASE_ADDR, 1, 0x1); | |
182 | } else { | |
183 | pci_write_bits32(pvt->F6, F17H_SCR_BASE_ADDR, 0, 0x1); | |
184 | } | |
185 | } | |
2bc65418 | 186 | /* |
8051c0af | 187 | * Scan the scrub rate mapping table for a close or matching bandwidth value to |
2bc65418 DT |
188 | * issue. If requested is too big, then use last maximum value found. |
189 | */ | |
da92110d | 190 | static int __set_scrub_rate(struct amd64_pvt *pvt, u32 new_bw, u32 min_rate) |
2bc65418 DT |
191 | { |
192 | u32 scrubval; | |
193 | int i; | |
194 | ||
195 | /* | |
196 | * map the configured rate (new_bw) to a value specific to the AMD64 | |
197 | * memory controller and apply to register. Search for the first | |
198 | * bandwidth entry that is greater or equal than the setting requested | |
199 | * and program that. If at last entry, turn off DRAM scrubbing. | |
168bfeef AM |
200 | * |
201 | * If no suitable bandwidth is found, turn off DRAM scrubbing entirely | |
202 | * by falling back to the last element in scrubrates[]. | |
2bc65418 | 203 | */ |
168bfeef | 204 | for (i = 0; i < ARRAY_SIZE(scrubrates) - 1; i++) { |
2bc65418 DT |
205 | /* |
206 | * skip scrub rates which aren't recommended | |
207 | * (see F10 BKDG, F3x58) | |
208 | */ | |
395ae783 | 209 | if (scrubrates[i].scrubval < min_rate) |
2bc65418 DT |
210 | continue; |
211 | ||
212 | if (scrubrates[i].bandwidth <= new_bw) | |
213 | break; | |
2bc65418 DT |
214 | } |
215 | ||
216 | scrubval = scrubrates[i].scrubval; | |
2bc65418 | 217 | |
c4a3e946 | 218 | if (pvt->fam == 0x17 || pvt->fam == 0x18) { |
8051c0af YG |
219 | __f17h_set_scrubval(pvt, scrubval); |
220 | } else if (pvt->fam == 0x15 && pvt->model == 0x60) { | |
da92110d AG |
221 | f15h_select_dct(pvt, 0); |
222 | pci_write_bits32(pvt->F2, F15H_M60H_SCRCTRL, scrubval, 0x001F); | |
223 | f15h_select_dct(pvt, 1); | |
224 | pci_write_bits32(pvt->F2, F15H_M60H_SCRCTRL, scrubval, 0x001F); | |
225 | } else { | |
226 | pci_write_bits32(pvt->F3, SCRCTRL, scrubval, 0x001F); | |
227 | } | |
2bc65418 | 228 | |
39094443 BP |
229 | if (scrubval) |
230 | return scrubrates[i].bandwidth; | |
231 | ||
2bc65418 DT |
232 | return 0; |
233 | } | |
234 | ||
d1ea71cd | 235 | static int set_scrub_rate(struct mem_ctl_info *mci, u32 bw) |
2bc65418 DT |
236 | { |
237 | struct amd64_pvt *pvt = mci->pvt_info; | |
87b3e0e6 | 238 | u32 min_scrubrate = 0x5; |
2bc65418 | 239 | |
a4b4bedc | 240 | if (pvt->fam == 0xf) |
87b3e0e6 BP |
241 | min_scrubrate = 0x0; |
242 | ||
da92110d AG |
243 | if (pvt->fam == 0x15) { |
244 | /* Erratum #505 */ | |
245 | if (pvt->model < 0x10) | |
246 | f15h_select_dct(pvt, 0); | |
73ba8593 | 247 | |
da92110d AG |
248 | if (pvt->model == 0x60) |
249 | min_scrubrate = 0x6; | |
250 | } | |
251 | return __set_scrub_rate(pvt, bw, min_scrubrate); | |
2bc65418 DT |
252 | } |
253 | ||
d1ea71cd | 254 | static int get_scrub_rate(struct mem_ctl_info *mci) |
2bc65418 DT |
255 | { |
256 | struct amd64_pvt *pvt = mci->pvt_info; | |
39094443 | 257 | int i, retval = -EINVAL; |
8051c0af | 258 | u32 scrubval = 0; |
2bc65418 | 259 | |
8051c0af YG |
260 | switch (pvt->fam) { |
261 | case 0x15: | |
da92110d AG |
262 | /* Erratum #505 */ |
263 | if (pvt->model < 0x10) | |
264 | f15h_select_dct(pvt, 0); | |
73ba8593 | 265 | |
da92110d AG |
266 | if (pvt->model == 0x60) |
267 | amd64_read_pci_cfg(pvt->F2, F15H_M60H_SCRCTRL, &scrubval); | |
8051c0af YG |
268 | break; |
269 | ||
270 | case 0x17: | |
c4a3e946 | 271 | case 0x18: |
8051c0af YG |
272 | amd64_read_pci_cfg(pvt->F6, F17H_SCR_BASE_ADDR, &scrubval); |
273 | if (scrubval & BIT(0)) { | |
274 | amd64_read_pci_cfg(pvt->F6, F17H_SCR_LIMIT_ADDR, &scrubval); | |
275 | scrubval &= 0xF; | |
276 | scrubval += 0x5; | |
277 | } else { | |
278 | scrubval = 0; | |
279 | } | |
280 | break; | |
281 | ||
282 | default: | |
da92110d | 283 | amd64_read_pci_cfg(pvt->F3, SCRCTRL, &scrubval); |
8051c0af YG |
284 | break; |
285 | } | |
2bc65418 DT |
286 | |
287 | scrubval = scrubval & 0x001F; | |
288 | ||
926311fd | 289 | for (i = 0; i < ARRAY_SIZE(scrubrates); i++) { |
2bc65418 | 290 | if (scrubrates[i].scrubval == scrubval) { |
39094443 | 291 | retval = scrubrates[i].bandwidth; |
2bc65418 DT |
292 | break; |
293 | } | |
294 | } | |
39094443 | 295 | return retval; |
2bc65418 DT |
296 | } |
297 | ||
6775763a | 298 | /* |
7f19bf75 BP |
299 | * returns true if the SysAddr given by sys_addr matches the |
300 | * DRAM base/limit associated with node_id | |
6775763a | 301 | */ |
d1ea71cd | 302 | static bool base_limit_match(struct amd64_pvt *pvt, u64 sys_addr, u8 nid) |
6775763a | 303 | { |
7f19bf75 | 304 | u64 addr; |
6775763a DT |
305 | |
306 | /* The K8 treats this as a 40-bit value. However, bits 63-40 will be | |
307 | * all ones if the most significant implemented address bit is 1. | |
308 | * Here we discard bits 63-40. See section 3.4.2 of AMD publication | |
309 | * 24592: AMD x86-64 Architecture Programmer's Manual Volume 1 | |
310 | * Application Programming. | |
311 | */ | |
312 | addr = sys_addr & 0x000000ffffffffffull; | |
313 | ||
7f19bf75 BP |
314 | return ((addr >= get_dram_base(pvt, nid)) && |
315 | (addr <= get_dram_limit(pvt, nid))); | |
6775763a DT |
316 | } |
317 | ||
318 | /* | |
319 | * Attempt to map a SysAddr to a node. On success, return a pointer to the | |
320 | * mem_ctl_info structure for the node that the SysAddr maps to. | |
321 | * | |
322 | * On failure, return NULL. | |
323 | */ | |
324 | static struct mem_ctl_info *find_mc_by_sys_addr(struct mem_ctl_info *mci, | |
325 | u64 sys_addr) | |
326 | { | |
327 | struct amd64_pvt *pvt; | |
c7e5301a | 328 | u8 node_id; |
6775763a DT |
329 | u32 intlv_en, bits; |
330 | ||
331 | /* | |
332 | * Here we use the DRAM Base (section 3.4.4.1) and DRAM Limit (section | |
333 | * 3.4.4.2) registers to map the SysAddr to a node ID. | |
334 | */ | |
335 | pvt = mci->pvt_info; | |
336 | ||
337 | /* | |
338 | * The value of this field should be the same for all DRAM Base | |
339 | * registers. Therefore we arbitrarily choose to read it from the | |
340 | * register for node 0. | |
341 | */ | |
7f19bf75 | 342 | intlv_en = dram_intlv_en(pvt, 0); |
6775763a DT |
343 | |
344 | if (intlv_en == 0) { | |
7f19bf75 | 345 | for (node_id = 0; node_id < DRAM_RANGES; node_id++) { |
d1ea71cd | 346 | if (base_limit_match(pvt, sys_addr, node_id)) |
8edc5445 | 347 | goto found; |
6775763a | 348 | } |
8edc5445 | 349 | goto err_no_match; |
6775763a DT |
350 | } |
351 | ||
72f158fe BP |
352 | if (unlikely((intlv_en != 0x01) && |
353 | (intlv_en != 0x03) && | |
354 | (intlv_en != 0x07))) { | |
24f9a7fe | 355 | amd64_warn("DRAM Base[IntlvEn] junk value: 0x%x, BIOS bug?\n", intlv_en); |
6775763a DT |
356 | return NULL; |
357 | } | |
358 | ||
359 | bits = (((u32) sys_addr) >> 12) & intlv_en; | |
360 | ||
361 | for (node_id = 0; ; ) { | |
7f19bf75 | 362 | if ((dram_intlv_sel(pvt, node_id) & intlv_en) == bits) |
6775763a DT |
363 | break; /* intlv_sel field matches */ |
364 | ||
7f19bf75 | 365 | if (++node_id >= DRAM_RANGES) |
6775763a DT |
366 | goto err_no_match; |
367 | } | |
368 | ||
369 | /* sanity test for sys_addr */ | |
d1ea71cd | 370 | if (unlikely(!base_limit_match(pvt, sys_addr, node_id))) { |
24f9a7fe BP |
371 | amd64_warn("%s: sys_addr 0x%llx falls outside base/limit address" |
372 | "range for node %d with node interleaving enabled.\n", | |
373 | __func__, sys_addr, node_id); | |
6775763a DT |
374 | return NULL; |
375 | } | |
376 | ||
377 | found: | |
b487c33e | 378 | return edac_mc_find((int)node_id); |
6775763a DT |
379 | |
380 | err_no_match: | |
956b9ba1 JP |
381 | edac_dbg(2, "sys_addr 0x%lx doesn't match any node\n", |
382 | (unsigned long)sys_addr); | |
6775763a DT |
383 | |
384 | return NULL; | |
385 | } | |
e2ce7255 DT |
386 | |
387 | /* | |
11c75ead BP |
388 | * compute the CS base address of the @csrow on the DRAM controller @dct. |
389 | * For details see F2x[5C:40] in the processor's BKDG | |
e2ce7255 | 390 | */ |
11c75ead BP |
391 | static void get_cs_base_and_mask(struct amd64_pvt *pvt, int csrow, u8 dct, |
392 | u64 *base, u64 *mask) | |
e2ce7255 | 393 | { |
11c75ead BP |
394 | u64 csbase, csmask, base_bits, mask_bits; |
395 | u8 addr_shift; | |
e2ce7255 | 396 | |
18b94f66 | 397 | if (pvt->fam == 0xf && pvt->ext_model < K8_REV_F) { |
11c75ead BP |
398 | csbase = pvt->csels[dct].csbases[csrow]; |
399 | csmask = pvt->csels[dct].csmasks[csrow]; | |
10ef6b0d CG |
400 | base_bits = GENMASK_ULL(31, 21) | GENMASK_ULL(15, 9); |
401 | mask_bits = GENMASK_ULL(29, 21) | GENMASK_ULL(15, 9); | |
11c75ead | 402 | addr_shift = 4; |
94c1acf2 AG |
403 | |
404 | /* | |
18b94f66 AG |
405 | * F16h and F15h, models 30h and later need two addr_shift values: |
406 | * 8 for high and 6 for low (cf. F16h BKDG). | |
407 | */ | |
408 | } else if (pvt->fam == 0x16 || | |
409 | (pvt->fam == 0x15 && pvt->model >= 0x30)) { | |
94c1acf2 AG |
410 | csbase = pvt->csels[dct].csbases[csrow]; |
411 | csmask = pvt->csels[dct].csmasks[csrow >> 1]; | |
412 | ||
10ef6b0d CG |
413 | *base = (csbase & GENMASK_ULL(15, 5)) << 6; |
414 | *base |= (csbase & GENMASK_ULL(30, 19)) << 8; | |
94c1acf2 AG |
415 | |
416 | *mask = ~0ULL; | |
417 | /* poke holes for the csmask */ | |
10ef6b0d CG |
418 | *mask &= ~((GENMASK_ULL(15, 5) << 6) | |
419 | (GENMASK_ULL(30, 19) << 8)); | |
94c1acf2 | 420 | |
10ef6b0d CG |
421 | *mask |= (csmask & GENMASK_ULL(15, 5)) << 6; |
422 | *mask |= (csmask & GENMASK_ULL(30, 19)) << 8; | |
94c1acf2 AG |
423 | |
424 | return; | |
11c75ead BP |
425 | } else { |
426 | csbase = pvt->csels[dct].csbases[csrow]; | |
427 | csmask = pvt->csels[dct].csmasks[csrow >> 1]; | |
428 | addr_shift = 8; | |
e2ce7255 | 429 | |
a4b4bedc | 430 | if (pvt->fam == 0x15) |
10ef6b0d CG |
431 | base_bits = mask_bits = |
432 | GENMASK_ULL(30,19) | GENMASK_ULL(13,5); | |
11c75ead | 433 | else |
10ef6b0d CG |
434 | base_bits = mask_bits = |
435 | GENMASK_ULL(28,19) | GENMASK_ULL(13,5); | |
11c75ead | 436 | } |
e2ce7255 | 437 | |
11c75ead | 438 | *base = (csbase & base_bits) << addr_shift; |
e2ce7255 | 439 | |
11c75ead BP |
440 | *mask = ~0ULL; |
441 | /* poke holes for the csmask */ | |
442 | *mask &= ~(mask_bits << addr_shift); | |
443 | /* OR them in */ | |
444 | *mask |= (csmask & mask_bits) << addr_shift; | |
e2ce7255 DT |
445 | } |
446 | ||
11c75ead BP |
447 | #define for_each_chip_select(i, dct, pvt) \ |
448 | for (i = 0; i < pvt->csels[dct].b_cnt; i++) | |
449 | ||
614ec9d8 BP |
450 | #define chip_select_base(i, dct, pvt) \ |
451 | pvt->csels[dct].csbases[i] | |
452 | ||
11c75ead BP |
453 | #define for_each_chip_select_mask(i, dct, pvt) \ |
454 | for (i = 0; i < pvt->csels[dct].m_cnt; i++) | |
455 | ||
4d30d2bc | 456 | #define for_each_umc(i) \ |
bdcee774 | 457 | for (i = 0; i < num_umcs; i++) |
4d30d2bc | 458 | |
e2ce7255 DT |
459 | /* |
460 | * @input_addr is an InputAddr associated with the node given by mci. Return the | |
461 | * csrow that input_addr maps to, or -1 on failure (no csrow claims input_addr). | |
462 | */ | |
463 | static int input_addr_to_csrow(struct mem_ctl_info *mci, u64 input_addr) | |
464 | { | |
465 | struct amd64_pvt *pvt; | |
466 | int csrow; | |
467 | u64 base, mask; | |
468 | ||
469 | pvt = mci->pvt_info; | |
470 | ||
11c75ead BP |
471 | for_each_chip_select(csrow, 0, pvt) { |
472 | if (!csrow_enabled(csrow, 0, pvt)) | |
e2ce7255 DT |
473 | continue; |
474 | ||
11c75ead BP |
475 | get_cs_base_and_mask(pvt, csrow, 0, &base, &mask); |
476 | ||
477 | mask = ~mask; | |
e2ce7255 DT |
478 | |
479 | if ((input_addr & mask) == (base & mask)) { | |
956b9ba1 JP |
480 | edac_dbg(2, "InputAddr 0x%lx matches csrow %d (node %d)\n", |
481 | (unsigned long)input_addr, csrow, | |
482 | pvt->mc_node_id); | |
e2ce7255 DT |
483 | |
484 | return csrow; | |
485 | } | |
486 | } | |
956b9ba1 JP |
487 | edac_dbg(2, "no matching csrow for InputAddr 0x%lx (MC node %d)\n", |
488 | (unsigned long)input_addr, pvt->mc_node_id); | |
e2ce7255 DT |
489 | |
490 | return -1; | |
491 | } | |
492 | ||
e2ce7255 DT |
493 | /* |
494 | * Obtain info from the DRAM Hole Address Register (section 3.4.8, pub #26094) | |
495 | * for the node represented by mci. Info is passed back in *hole_base, | |
496 | * *hole_offset, and *hole_size. Function returns 0 if info is valid or 1 if | |
497 | * info is invalid. Info may be invalid for either of the following reasons: | |
498 | * | |
499 | * - The revision of the node is not E or greater. In this case, the DRAM Hole | |
500 | * Address Register does not exist. | |
501 | * | |
502 | * - The DramHoleValid bit is cleared in the DRAM Hole Address Register, | |
503 | * indicating that its contents are not valid. | |
504 | * | |
505 | * The values passed back in *hole_base, *hole_offset, and *hole_size are | |
506 | * complete 32-bit values despite the fact that the bitfields in the DHAR | |
507 | * only represent bits 31-24 of the base and offset values. | |
508 | */ | |
509 | int amd64_get_dram_hole_info(struct mem_ctl_info *mci, u64 *hole_base, | |
510 | u64 *hole_offset, u64 *hole_size) | |
511 | { | |
512 | struct amd64_pvt *pvt = mci->pvt_info; | |
e2ce7255 DT |
513 | |
514 | /* only revE and later have the DRAM Hole Address Register */ | |
a4b4bedc | 515 | if (pvt->fam == 0xf && pvt->ext_model < K8_REV_E) { |
956b9ba1 JP |
516 | edac_dbg(1, " revision %d for node %d does not support DHAR\n", |
517 | pvt->ext_model, pvt->mc_node_id); | |
e2ce7255 DT |
518 | return 1; |
519 | } | |
520 | ||
bc21fa57 | 521 | /* valid for Fam10h and above */ |
a4b4bedc | 522 | if (pvt->fam >= 0x10 && !dhar_mem_hoist_valid(pvt)) { |
956b9ba1 | 523 | edac_dbg(1, " Dram Memory Hoisting is DISABLED on this system\n"); |
e2ce7255 DT |
524 | return 1; |
525 | } | |
526 | ||
c8e518d5 | 527 | if (!dhar_valid(pvt)) { |
956b9ba1 JP |
528 | edac_dbg(1, " Dram Memory Hoisting is DISABLED on this node %d\n", |
529 | pvt->mc_node_id); | |
e2ce7255 DT |
530 | return 1; |
531 | } | |
532 | ||
533 | /* This node has Memory Hoisting */ | |
534 | ||
535 | /* +------------------+--------------------+--------------------+----- | |
536 | * | memory | DRAM hole | relocated | | |
537 | * | [0, (x - 1)] | [x, 0xffffffff] | addresses from | | |
538 | * | | | DRAM hole | | |
539 | * | | | [0x100000000, | | |
540 | * | | | (0x100000000+ | | |
541 | * | | | (0xffffffff-x))] | | |
542 | * +------------------+--------------------+--------------------+----- | |
543 | * | |
544 | * Above is a diagram of physical memory showing the DRAM hole and the | |
545 | * relocated addresses from the DRAM hole. As shown, the DRAM hole | |
546 | * starts at address x (the base address) and extends through address | |
547 | * 0xffffffff. The DRAM Hole Address Register (DHAR) relocates the | |
548 | * addresses in the hole so that they start at 0x100000000. | |
549 | */ | |
550 | ||
1f31677e BP |
551 | *hole_base = dhar_base(pvt); |
552 | *hole_size = (1ULL << 32) - *hole_base; | |
e2ce7255 | 553 | |
a4b4bedc BP |
554 | *hole_offset = (pvt->fam > 0xf) ? f10_dhar_offset(pvt) |
555 | : k8_dhar_offset(pvt); | |
e2ce7255 | 556 | |
956b9ba1 JP |
557 | edac_dbg(1, " DHAR info for node %d base 0x%lx offset 0x%lx size 0x%lx\n", |
558 | pvt->mc_node_id, (unsigned long)*hole_base, | |
559 | (unsigned long)*hole_offset, (unsigned long)*hole_size); | |
e2ce7255 DT |
560 | |
561 | return 0; | |
562 | } | |
563 | EXPORT_SYMBOL_GPL(amd64_get_dram_hole_info); | |
564 | ||
93c2df58 DT |
565 | /* |
566 | * Return the DramAddr that the SysAddr given by @sys_addr maps to. It is | |
567 | * assumed that sys_addr maps to the node given by mci. | |
568 | * | |
569 | * The first part of section 3.4.4 (p. 70) shows how the DRAM Base (section | |
570 | * 3.4.4.1) and DRAM Limit (section 3.4.4.2) registers are used to translate a | |
571 | * SysAddr to a DramAddr. If the DRAM Hole Address Register (DHAR) is enabled, | |
572 | * then it is also involved in translating a SysAddr to a DramAddr. Sections | |
573 | * 3.4.8 and 3.5.8.2 describe the DHAR and how it is used for memory hoisting. | |
574 | * These parts of the documentation are unclear. I interpret them as follows: | |
575 | * | |
576 | * When node n receives a SysAddr, it processes the SysAddr as follows: | |
577 | * | |
578 | * 1. It extracts the DRAMBase and DRAMLimit values from the DRAM Base and DRAM | |
579 | * Limit registers for node n. If the SysAddr is not within the range | |
580 | * specified by the base and limit values, then node n ignores the Sysaddr | |
581 | * (since it does not map to node n). Otherwise continue to step 2 below. | |
582 | * | |
583 | * 2. If the DramHoleValid bit of the DHAR for node n is clear, the DHAR is | |
584 | * disabled so skip to step 3 below. Otherwise see if the SysAddr is within | |
585 | * the range of relocated addresses (starting at 0x100000000) from the DRAM | |
586 | * hole. If not, skip to step 3 below. Else get the value of the | |
587 | * DramHoleOffset field from the DHAR. To obtain the DramAddr, subtract the | |
588 | * offset defined by this value from the SysAddr. | |
589 | * | |
590 | * 3. Obtain the base address for node n from the DRAMBase field of the DRAM | |
591 | * Base register for node n. To obtain the DramAddr, subtract the base | |
592 | * address from the SysAddr, as shown near the start of section 3.4.4 (p.70). | |
593 | */ | |
594 | static u64 sys_addr_to_dram_addr(struct mem_ctl_info *mci, u64 sys_addr) | |
595 | { | |
7f19bf75 | 596 | struct amd64_pvt *pvt = mci->pvt_info; |
93c2df58 | 597 | u64 dram_base, hole_base, hole_offset, hole_size, dram_addr; |
1f31677e | 598 | int ret; |
93c2df58 | 599 | |
7f19bf75 | 600 | dram_base = get_dram_base(pvt, pvt->mc_node_id); |
93c2df58 DT |
601 | |
602 | ret = amd64_get_dram_hole_info(mci, &hole_base, &hole_offset, | |
603 | &hole_size); | |
604 | if (!ret) { | |
1f31677e BP |
605 | if ((sys_addr >= (1ULL << 32)) && |
606 | (sys_addr < ((1ULL << 32) + hole_size))) { | |
93c2df58 DT |
607 | /* use DHAR to translate SysAddr to DramAddr */ |
608 | dram_addr = sys_addr - hole_offset; | |
609 | ||
956b9ba1 JP |
610 | edac_dbg(2, "using DHAR to translate SysAddr 0x%lx to DramAddr 0x%lx\n", |
611 | (unsigned long)sys_addr, | |
612 | (unsigned long)dram_addr); | |
93c2df58 DT |
613 | |
614 | return dram_addr; | |
615 | } | |
616 | } | |
617 | ||
618 | /* | |
619 | * Translate the SysAddr to a DramAddr as shown near the start of | |
620 | * section 3.4.4 (p. 70). Although sys_addr is a 64-bit value, the k8 | |
621 | * only deals with 40-bit values. Therefore we discard bits 63-40 of | |
622 | * sys_addr below. If bit 39 of sys_addr is 1 then the bits we | |
623 | * discard are all 1s. Otherwise the bits we discard are all 0s. See | |
624 | * section 3.4.2 of AMD publication 24592: AMD x86-64 Architecture | |
625 | * Programmer's Manual Volume 1 Application Programming. | |
626 | */ | |
10ef6b0d | 627 | dram_addr = (sys_addr & GENMASK_ULL(39, 0)) - dram_base; |
93c2df58 | 628 | |
956b9ba1 JP |
629 | edac_dbg(2, "using DRAM Base register to translate SysAddr 0x%lx to DramAddr 0x%lx\n", |
630 | (unsigned long)sys_addr, (unsigned long)dram_addr); | |
93c2df58 DT |
631 | return dram_addr; |
632 | } | |
633 | ||
634 | /* | |
635 | * @intlv_en is the value of the IntlvEn field from a DRAM Base register | |
636 | * (section 3.4.4.1). Return the number of bits from a SysAddr that are used | |
637 | * for node interleaving. | |
638 | */ | |
639 | static int num_node_interleave_bits(unsigned intlv_en) | |
640 | { | |
641 | static const int intlv_shift_table[] = { 0, 1, 0, 2, 0, 0, 0, 3 }; | |
642 | int n; | |
643 | ||
644 | BUG_ON(intlv_en > 7); | |
645 | n = intlv_shift_table[intlv_en]; | |
646 | return n; | |
647 | } | |
648 | ||
649 | /* Translate the DramAddr given by @dram_addr to an InputAddr. */ | |
650 | static u64 dram_addr_to_input_addr(struct mem_ctl_info *mci, u64 dram_addr) | |
651 | { | |
652 | struct amd64_pvt *pvt; | |
653 | int intlv_shift; | |
654 | u64 input_addr; | |
655 | ||
656 | pvt = mci->pvt_info; | |
657 | ||
658 | /* | |
659 | * See the start of section 3.4.4 (p. 70, BKDG #26094, K8, revA-E) | |
660 | * concerning translating a DramAddr to an InputAddr. | |
661 | */ | |
7f19bf75 | 662 | intlv_shift = num_node_interleave_bits(dram_intlv_en(pvt, 0)); |
10ef6b0d | 663 | input_addr = ((dram_addr >> intlv_shift) & GENMASK_ULL(35, 12)) + |
f678b8cc | 664 | (dram_addr & 0xfff); |
93c2df58 | 665 | |
956b9ba1 JP |
666 | edac_dbg(2, " Intlv Shift=%d DramAddr=0x%lx maps to InputAddr=0x%lx\n", |
667 | intlv_shift, (unsigned long)dram_addr, | |
668 | (unsigned long)input_addr); | |
93c2df58 DT |
669 | |
670 | return input_addr; | |
671 | } | |
672 | ||
673 | /* | |
674 | * Translate the SysAddr represented by @sys_addr to an InputAddr. It is | |
675 | * assumed that @sys_addr maps to the node given by mci. | |
676 | */ | |
677 | static u64 sys_addr_to_input_addr(struct mem_ctl_info *mci, u64 sys_addr) | |
678 | { | |
679 | u64 input_addr; | |
680 | ||
681 | input_addr = | |
682 | dram_addr_to_input_addr(mci, sys_addr_to_dram_addr(mci, sys_addr)); | |
683 | ||
c19ca6cb | 684 | edac_dbg(2, "SysAddr 0x%lx translates to InputAddr 0x%lx\n", |
956b9ba1 | 685 | (unsigned long)sys_addr, (unsigned long)input_addr); |
93c2df58 DT |
686 | |
687 | return input_addr; | |
688 | } | |
689 | ||
93c2df58 DT |
690 | /* Map the Error address to a PAGE and PAGE OFFSET. */ |
691 | static inline void error_address_to_page_and_offset(u64 error_address, | |
33ca0643 | 692 | struct err_info *err) |
93c2df58 | 693 | { |
33ca0643 BP |
694 | err->page = (u32) (error_address >> PAGE_SHIFT); |
695 | err->offset = ((u32) error_address) & ~PAGE_MASK; | |
93c2df58 DT |
696 | } |
697 | ||
698 | /* | |
699 | * @sys_addr is an error address (a SysAddr) extracted from the MCA NB Address | |
700 | * Low (section 3.6.4.5) and MCA NB Address High (section 3.6.4.6) registers | |
701 | * of a node that detected an ECC memory error. mci represents the node that | |
702 | * the error address maps to (possibly different from the node that detected | |
703 | * the error). Return the number of the csrow that sys_addr maps to, or -1 on | |
704 | * error. | |
705 | */ | |
706 | static int sys_addr_to_csrow(struct mem_ctl_info *mci, u64 sys_addr) | |
707 | { | |
708 | int csrow; | |
709 | ||
710 | csrow = input_addr_to_csrow(mci, sys_addr_to_input_addr(mci, sys_addr)); | |
711 | ||
712 | if (csrow == -1) | |
24f9a7fe BP |
713 | amd64_mc_err(mci, "Failed to translate InputAddr to csrow for " |
714 | "address 0x%lx\n", (unsigned long)sys_addr); | |
93c2df58 DT |
715 | return csrow; |
716 | } | |
e2ce7255 | 717 | |
bfc04aec | 718 | static int get_channel_from_ecc_syndrome(struct mem_ctl_info *, u16); |
2da11654 | 719 | |
2da11654 DT |
720 | /* |
721 | * Determine if the DIMMs have ECC enabled. ECC is enabled ONLY if all the DIMMs | |
722 | * are ECC capable. | |
723 | */ | |
d1ea71cd | 724 | static unsigned long determine_edac_cap(struct amd64_pvt *pvt) |
2da11654 | 725 | { |
1f6189ed | 726 | unsigned long edac_cap = EDAC_FLAG_NONE; |
d27f3a34 YG |
727 | u8 bit; |
728 | ||
729 | if (pvt->umc) { | |
730 | u8 i, umc_en_mask = 0, dimm_ecc_en_mask = 0; | |
2da11654 | 731 | |
4d30d2bc | 732 | for_each_umc(i) { |
d27f3a34 YG |
733 | if (!(pvt->umc[i].sdp_ctrl & UMC_SDP_INIT)) |
734 | continue; | |
2da11654 | 735 | |
d27f3a34 YG |
736 | umc_en_mask |= BIT(i); |
737 | ||
738 | /* UMC Configuration bit 12 (DimmEccEn) */ | |
739 | if (pvt->umc[i].umc_cfg & BIT(12)) | |
740 | dimm_ecc_en_mask |= BIT(i); | |
741 | } | |
742 | ||
743 | if (umc_en_mask == dimm_ecc_en_mask) | |
744 | edac_cap = EDAC_FLAG_SECDED; | |
745 | } else { | |
746 | bit = (pvt->fam > 0xf || pvt->ext_model >= K8_REV_F) | |
747 | ? 19 | |
748 | : 17; | |
749 | ||
750 | if (pvt->dclr0 & BIT(bit)) | |
751 | edac_cap = EDAC_FLAG_SECDED; | |
752 | } | |
2da11654 DT |
753 | |
754 | return edac_cap; | |
755 | } | |
756 | ||
d1ea71cd | 757 | static void debug_display_dimm_sizes(struct amd64_pvt *, u8); |
2da11654 | 758 | |
d1ea71cd | 759 | static void debug_dump_dramcfg_low(struct amd64_pvt *pvt, u32 dclr, int chan) |
68798e17 | 760 | { |
956b9ba1 | 761 | edac_dbg(1, "F2x%d90 (DRAM Cfg Low): 0x%08x\n", chan, dclr); |
68798e17 | 762 | |
a597d2a5 AG |
763 | if (pvt->dram_type == MEM_LRDDR3) { |
764 | u32 dcsm = pvt->csels[chan].csmasks[0]; | |
765 | /* | |
766 | * It's assumed all LRDIMMs in a DCT are going to be of | |
767 | * same 'type' until proven otherwise. So, use a cs | |
768 | * value of '0' here to get dcsm value. | |
769 | */ | |
770 | edac_dbg(1, " LRDIMM %dx rank multiply\n", (dcsm & 0x3)); | |
771 | } | |
772 | ||
773 | edac_dbg(1, "All DIMMs support ECC:%s\n", | |
774 | (dclr & BIT(19)) ? "yes" : "no"); | |
775 | ||
68798e17 | 776 | |
956b9ba1 JP |
777 | edac_dbg(1, " PAR/ERR parity: %s\n", |
778 | (dclr & BIT(8)) ? "enabled" : "disabled"); | |
68798e17 | 779 | |
a4b4bedc | 780 | if (pvt->fam == 0x10) |
956b9ba1 JP |
781 | edac_dbg(1, " DCT 128bit mode width: %s\n", |
782 | (dclr & BIT(11)) ? "128b" : "64b"); | |
68798e17 | 783 | |
956b9ba1 JP |
784 | edac_dbg(1, " x4 logical DIMMs present: L0: %s L1: %s L2: %s L3: %s\n", |
785 | (dclr & BIT(12)) ? "yes" : "no", | |
786 | (dclr & BIT(13)) ? "yes" : "no", | |
787 | (dclr & BIT(14)) ? "yes" : "no", | |
788 | (dclr & BIT(15)) ? "yes" : "no"); | |
68798e17 BP |
789 | } |
790 | ||
fc00c6a4 YG |
791 | /* |
792 | * The Address Mask should be a contiguous set of bits in the non-interleaved | |
793 | * case. So to check for CS interleaving, find the most- and least-significant | |
794 | * bits of the mask, generate a contiguous bitmask, and compare the two. | |
795 | */ | |
796 | static bool f17_cs_interleaved(struct amd64_pvt *pvt, u8 ctrl, int cs) | |
797 | { | |
798 | u32 mask = pvt->csels[ctrl].csmasks[cs >> 1]; | |
799 | u32 msb = fls(mask) - 1, lsb = ffs(mask) - 1; | |
800 | u32 test_mask = GENMASK(msb, lsb); | |
801 | ||
802 | edac_dbg(1, "mask=0x%08x test_mask=0x%08x\n", mask, test_mask); | |
803 | ||
804 | return mask ^ test_mask; | |
805 | } | |
806 | ||
07ed82ef YG |
807 | static void debug_display_dimm_sizes_df(struct amd64_pvt *pvt, u8 ctrl) |
808 | { | |
eb77e6b8 | 809 | int dimm, size0, size1, cs0, cs1; |
07ed82ef YG |
810 | |
811 | edac_printk(KERN_DEBUG, EDAC_MC, "UMC%d chip selects:\n", ctrl); | |
812 | ||
05f664ac | 813 | for (dimm = 0; dimm < 2; dimm++) { |
07ed82ef | 814 | size0 = 0; |
eb77e6b8 | 815 | cs0 = dimm * 2; |
07ed82ef | 816 | |
eb77e6b8 YG |
817 | if (csrow_enabled(cs0, ctrl, pvt)) |
818 | size0 = pvt->ops->dbam_to_cs(pvt, ctrl, 0, cs0); | |
07ed82ef YG |
819 | |
820 | size1 = 0; | |
eb77e6b8 YG |
821 | cs1 = dimm * 2 + 1; |
822 | ||
fc00c6a4 YG |
823 | if (csrow_enabled(cs1, ctrl, pvt)) { |
824 | /* | |
825 | * CS interleaving is only supported if both CSes have | |
826 | * the same amount of memory. Because they are | |
827 | * interleaved, it will look like both CSes have the | |
828 | * full amount of memory. Save the size for both as | |
829 | * half the amount we found on CS0, if interleaved. | |
830 | */ | |
831 | if (f17_cs_interleaved(pvt, ctrl, cs1)) | |
832 | size1 = size0 = (size0 >> 1); | |
833 | else | |
834 | size1 = pvt->ops->dbam_to_cs(pvt, ctrl, 0, cs1); | |
835 | } | |
07ed82ef YG |
836 | |
837 | amd64_info(EDAC_MC ": %d: %5dMB %d: %5dMB\n", | |
eb77e6b8 YG |
838 | cs0, size0, |
839 | cs1, size1); | |
07ed82ef YG |
840 | } |
841 | } | |
842 | ||
843 | static void __dump_misc_regs_df(struct amd64_pvt *pvt) | |
844 | { | |
845 | struct amd64_umc *umc; | |
846 | u32 i, tmp, umc_base; | |
847 | ||
4d30d2bc | 848 | for_each_umc(i) { |
07ed82ef YG |
849 | umc_base = get_umc_base(i); |
850 | umc = &pvt->umc[i]; | |
851 | ||
852 | edac_dbg(1, "UMC%d DIMM cfg: 0x%x\n", i, umc->dimm_cfg); | |
853 | edac_dbg(1, "UMC%d UMC cfg: 0x%x\n", i, umc->umc_cfg); | |
854 | edac_dbg(1, "UMC%d SDP ctrl: 0x%x\n", i, umc->sdp_ctrl); | |
855 | edac_dbg(1, "UMC%d ECC ctrl: 0x%x\n", i, umc->ecc_ctrl); | |
856 | ||
857 | amd_smn_read(pvt->mc_node_id, umc_base + UMCCH_ECC_BAD_SYMBOL, &tmp); | |
858 | edac_dbg(1, "UMC%d ECC bad symbol: 0x%x\n", i, tmp); | |
859 | ||
860 | amd_smn_read(pvt->mc_node_id, umc_base + UMCCH_UMC_CAP, &tmp); | |
861 | edac_dbg(1, "UMC%d UMC cap: 0x%x\n", i, tmp); | |
862 | edac_dbg(1, "UMC%d UMC cap high: 0x%x\n", i, umc->umc_cap_hi); | |
863 | ||
864 | edac_dbg(1, "UMC%d ECC capable: %s, ChipKill ECC capable: %s\n", | |
865 | i, (umc->umc_cap_hi & BIT(30)) ? "yes" : "no", | |
866 | (umc->umc_cap_hi & BIT(31)) ? "yes" : "no"); | |
867 | edac_dbg(1, "UMC%d All DIMMs support ECC: %s\n", | |
868 | i, (umc->umc_cfg & BIT(12)) ? "yes" : "no"); | |
869 | edac_dbg(1, "UMC%d x4 DIMMs present: %s\n", | |
870 | i, (umc->dimm_cfg & BIT(6)) ? "yes" : "no"); | |
871 | edac_dbg(1, "UMC%d x16 DIMMs present: %s\n", | |
872 | i, (umc->dimm_cfg & BIT(7)) ? "yes" : "no"); | |
873 | ||
874 | if (pvt->dram_type == MEM_LRDDR4) { | |
875 | amd_smn_read(pvt->mc_node_id, umc_base + UMCCH_ADDR_CFG, &tmp); | |
876 | edac_dbg(1, "UMC%d LRDIMM %dx rank multiply\n", | |
877 | i, 1 << ((tmp >> 4) & 0x3)); | |
878 | } | |
879 | ||
880 | debug_display_dimm_sizes_df(pvt, i); | |
881 | } | |
882 | ||
883 | edac_dbg(1, "F0x104 (DRAM Hole Address): 0x%08x, base: 0x%08x\n", | |
884 | pvt->dhar, dhar_base(pvt)); | |
885 | } | |
886 | ||
2da11654 | 887 | /* Display and decode various NB registers for debug purposes. */ |
07ed82ef | 888 | static void __dump_misc_regs(struct amd64_pvt *pvt) |
2da11654 | 889 | { |
956b9ba1 | 890 | edac_dbg(1, "F3xE8 (NB Cap): 0x%08x\n", pvt->nbcap); |
68798e17 | 891 | |
956b9ba1 JP |
892 | edac_dbg(1, " NB two channel DRAM capable: %s\n", |
893 | (pvt->nbcap & NBCAP_DCT_DUAL) ? "yes" : "no"); | |
2da11654 | 894 | |
956b9ba1 JP |
895 | edac_dbg(1, " ECC capable: %s, ChipKill ECC capable: %s\n", |
896 | (pvt->nbcap & NBCAP_SECDED) ? "yes" : "no", | |
897 | (pvt->nbcap & NBCAP_CHIPKILL) ? "yes" : "no"); | |
68798e17 | 898 | |
d1ea71cd | 899 | debug_dump_dramcfg_low(pvt, pvt->dclr0, 0); |
2da11654 | 900 | |
956b9ba1 | 901 | edac_dbg(1, "F3xB0 (Online Spare): 0x%08x\n", pvt->online_spare); |
2da11654 | 902 | |
956b9ba1 JP |
903 | edac_dbg(1, "F1xF0 (DRAM Hole Address): 0x%08x, base: 0x%08x, offset: 0x%08x\n", |
904 | pvt->dhar, dhar_base(pvt), | |
a4b4bedc BP |
905 | (pvt->fam == 0xf) ? k8_dhar_offset(pvt) |
906 | : f10_dhar_offset(pvt)); | |
2da11654 | 907 | |
d1ea71cd | 908 | debug_display_dimm_sizes(pvt, 0); |
4d796364 | 909 | |
8de1d91e | 910 | /* everything below this point is Fam10h and above */ |
a4b4bedc | 911 | if (pvt->fam == 0xf) |
2da11654 | 912 | return; |
4d796364 | 913 | |
d1ea71cd | 914 | debug_display_dimm_sizes(pvt, 1); |
2da11654 | 915 | |
8de1d91e | 916 | /* Only if NOT ganged does dclr1 have valid info */ |
68798e17 | 917 | if (!dct_ganging_enabled(pvt)) |
d1ea71cd | 918 | debug_dump_dramcfg_low(pvt, pvt->dclr1, 1); |
2da11654 DT |
919 | } |
920 | ||
07ed82ef YG |
921 | /* Display and decode various NB registers for debug purposes. */ |
922 | static void dump_misc_regs(struct amd64_pvt *pvt) | |
923 | { | |
924 | if (pvt->umc) | |
925 | __dump_misc_regs_df(pvt); | |
926 | else | |
927 | __dump_misc_regs(pvt); | |
928 | ||
929 | edac_dbg(1, " DramHoleValid: %s\n", dhar_valid(pvt) ? "yes" : "no"); | |
930 | ||
7835961d | 931 | amd64_info("using x%u syndromes.\n", pvt->ecc_sym_sz); |
07ed82ef YG |
932 | } |
933 | ||
94be4bff | 934 | /* |
18b94f66 | 935 | * See BKDG, F2x[1,0][5C:40], F2[1,0][6C:60] |
94be4bff | 936 | */ |
11c75ead | 937 | static void prep_chip_selects(struct amd64_pvt *pvt) |
94be4bff | 938 | { |
18b94f66 | 939 | if (pvt->fam == 0xf && pvt->ext_model < K8_REV_F) { |
11c75ead BP |
940 | pvt->csels[0].b_cnt = pvt->csels[1].b_cnt = 8; |
941 | pvt->csels[0].m_cnt = pvt->csels[1].m_cnt = 8; | |
a597d2a5 | 942 | } else if (pvt->fam == 0x15 && pvt->model == 0x30) { |
18b94f66 AG |
943 | pvt->csels[0].b_cnt = pvt->csels[1].b_cnt = 4; |
944 | pvt->csels[0].m_cnt = pvt->csels[1].m_cnt = 2; | |
05f664ac YG |
945 | } else if (pvt->fam >= 0x17) { |
946 | int umc; | |
947 | ||
948 | for_each_umc(umc) { | |
949 | pvt->csels[umc].b_cnt = 4; | |
950 | pvt->csels[umc].m_cnt = 2; | |
951 | } | |
952 | ||
9d858bb1 | 953 | } else { |
11c75ead BP |
954 | pvt->csels[0].b_cnt = pvt->csels[1].b_cnt = 8; |
955 | pvt->csels[0].m_cnt = pvt->csels[1].m_cnt = 4; | |
94be4bff DT |
956 | } |
957 | } | |
958 | ||
05f664ac YG |
959 | static void read_umc_base_mask(struct amd64_pvt *pvt) |
960 | { | |
961 | u32 umc_base_reg, umc_mask_reg; | |
962 | u32 base_reg, mask_reg; | |
963 | u32 *base, *mask; | |
964 | int cs, umc; | |
965 | ||
966 | for_each_umc(umc) { | |
967 | umc_base_reg = get_umc_base(umc) + UMCCH_BASE_ADDR; | |
968 | ||
969 | for_each_chip_select(cs, umc, pvt) { | |
970 | base = &pvt->csels[umc].csbases[cs]; | |
971 | ||
972 | base_reg = umc_base_reg + (cs * 4); | |
973 | ||
974 | if (!amd_smn_read(pvt->mc_node_id, base_reg, base)) | |
975 | edac_dbg(0, " DCSB%d[%d]=0x%08x reg: 0x%x\n", | |
976 | umc, cs, *base, base_reg); | |
977 | } | |
978 | ||
979 | umc_mask_reg = get_umc_base(umc) + UMCCH_ADDR_MASK; | |
980 | ||
981 | for_each_chip_select_mask(cs, umc, pvt) { | |
982 | mask = &pvt->csels[umc].csmasks[cs]; | |
983 | ||
984 | mask_reg = umc_mask_reg + (cs * 4); | |
985 | ||
986 | if (!amd_smn_read(pvt->mc_node_id, mask_reg, mask)) | |
987 | edac_dbg(0, " DCSM%d[%d]=0x%08x reg: 0x%x\n", | |
988 | umc, cs, *mask, mask_reg); | |
989 | } | |
990 | } | |
991 | } | |
992 | ||
94be4bff | 993 | /* |
11c75ead | 994 | * Function 2 Offset F10_DCSB0; read in the DCS Base and DCS Mask registers |
94be4bff | 995 | */ |
b2b0c605 | 996 | static void read_dct_base_mask(struct amd64_pvt *pvt) |
94be4bff | 997 | { |
05f664ac | 998 | int cs; |
94be4bff | 999 | |
11c75ead | 1000 | prep_chip_selects(pvt); |
94be4bff | 1001 | |
05f664ac YG |
1002 | if (pvt->umc) |
1003 | return read_umc_base_mask(pvt); | |
b64ce7cd | 1004 | |
11c75ead | 1005 | for_each_chip_select(cs, 0, pvt) { |
05f664ac YG |
1006 | int reg0 = DCSB0 + (cs * 4); |
1007 | int reg1 = DCSB1 + (cs * 4); | |
11c75ead BP |
1008 | u32 *base0 = &pvt->csels[0].csbases[cs]; |
1009 | u32 *base1 = &pvt->csels[1].csbases[cs]; | |
b2b0c605 | 1010 | |
05f664ac YG |
1011 | if (!amd64_read_dct_pci_cfg(pvt, 0, reg0, base0)) |
1012 | edac_dbg(0, " DCSB0[%d]=0x%08x reg: F2x%x\n", | |
1013 | cs, *base0, reg0); | |
8de9930a | 1014 | |
05f664ac YG |
1015 | if (pvt->fam == 0xf) |
1016 | continue; | |
b64ce7cd | 1017 | |
05f664ac YG |
1018 | if (!amd64_read_dct_pci_cfg(pvt, 1, reg0, base1)) |
1019 | edac_dbg(0, " DCSB1[%d]=0x%08x reg: F2x%x\n", | |
1020 | cs, *base1, (pvt->fam == 0x10) ? reg1 | |
1021 | : reg0); | |
94be4bff DT |
1022 | } |
1023 | ||
11c75ead | 1024 | for_each_chip_select_mask(cs, 0, pvt) { |
05f664ac YG |
1025 | int reg0 = DCSM0 + (cs * 4); |
1026 | int reg1 = DCSM1 + (cs * 4); | |
11c75ead BP |
1027 | u32 *mask0 = &pvt->csels[0].csmasks[cs]; |
1028 | u32 *mask1 = &pvt->csels[1].csmasks[cs]; | |
b2b0c605 | 1029 | |
05f664ac YG |
1030 | if (!amd64_read_dct_pci_cfg(pvt, 0, reg0, mask0)) |
1031 | edac_dbg(0, " DCSM0[%d]=0x%08x reg: F2x%x\n", | |
1032 | cs, *mask0, reg0); | |
b64ce7cd | 1033 | |
05f664ac YG |
1034 | if (pvt->fam == 0xf) |
1035 | continue; | |
8de9930a | 1036 | |
05f664ac YG |
1037 | if (!amd64_read_dct_pci_cfg(pvt, 1, reg0, mask1)) |
1038 | edac_dbg(0, " DCSM1[%d]=0x%08x reg: F2x%x\n", | |
1039 | cs, *mask1, (pvt->fam == 0x10) ? reg1 | |
1040 | : reg0); | |
94be4bff DT |
1041 | } |
1042 | } | |
1043 | ||
a597d2a5 | 1044 | static void determine_memory_type(struct amd64_pvt *pvt) |
94be4bff | 1045 | { |
a597d2a5 | 1046 | u32 dram_ctrl, dcsm; |
94be4bff | 1047 | |
a597d2a5 AG |
1048 | switch (pvt->fam) { |
1049 | case 0xf: | |
1050 | if (pvt->ext_model >= K8_REV_F) | |
1051 | goto ddr3; | |
1052 | ||
1053 | pvt->dram_type = (pvt->dclr0 & BIT(18)) ? MEM_DDR : MEM_RDDR; | |
1054 | return; | |
1055 | ||
1056 | case 0x10: | |
6b4c0bde | 1057 | if (pvt->dchr0 & DDR3_MODE) |
a597d2a5 AG |
1058 | goto ddr3; |
1059 | ||
1060 | pvt->dram_type = (pvt->dclr0 & BIT(16)) ? MEM_DDR2 : MEM_RDDR2; | |
1061 | return; | |
1062 | ||
1063 | case 0x15: | |
1064 | if (pvt->model < 0x60) | |
1065 | goto ddr3; | |
1066 | ||
1067 | /* | |
1068 | * Model 0x60h needs special handling: | |
1069 | * | |
1070 | * We use a Chip Select value of '0' to obtain dcsm. | |
1071 | * Theoretically, it is possible to populate LRDIMMs of different | |
1072 | * 'Rank' value on a DCT. But this is not the common case. So, | |
1073 | * it's reasonable to assume all DIMMs are going to be of same | |
1074 | * 'type' until proven otherwise. | |
1075 | */ | |
1076 | amd64_read_dct_pci_cfg(pvt, 0, DRAM_CONTROL, &dram_ctrl); | |
1077 | dcsm = pvt->csels[0].csmasks[0]; | |
1078 | ||
1079 | if (((dram_ctrl >> 8) & 0x7) == 0x2) | |
1080 | pvt->dram_type = MEM_DDR4; | |
1081 | else if (pvt->dclr0 & BIT(16)) | |
1082 | pvt->dram_type = MEM_DDR3; | |
1083 | else if (dcsm & 0x3) | |
1084 | pvt->dram_type = MEM_LRDDR3; | |
6b4c0bde | 1085 | else |
a597d2a5 | 1086 | pvt->dram_type = MEM_RDDR3; |
94be4bff | 1087 | |
a597d2a5 AG |
1088 | return; |
1089 | ||
1090 | case 0x16: | |
1091 | goto ddr3; | |
1092 | ||
b64ce7cd | 1093 | case 0x17: |
c4a3e946 | 1094 | case 0x18: |
b64ce7cd YG |
1095 | if ((pvt->umc[0].dimm_cfg | pvt->umc[1].dimm_cfg) & BIT(5)) |
1096 | pvt->dram_type = MEM_LRDDR4; | |
1097 | else if ((pvt->umc[0].dimm_cfg | pvt->umc[1].dimm_cfg) & BIT(4)) | |
1098 | pvt->dram_type = MEM_RDDR4; | |
1099 | else | |
1100 | pvt->dram_type = MEM_DDR4; | |
1101 | return; | |
1102 | ||
a597d2a5 AG |
1103 | default: |
1104 | WARN(1, KERN_ERR "%s: Family??? 0x%x\n", __func__, pvt->fam); | |
1105 | pvt->dram_type = MEM_EMPTY; | |
1106 | } | |
1107 | return; | |
94be4bff | 1108 | |
a597d2a5 AG |
1109 | ddr3: |
1110 | pvt->dram_type = (pvt->dclr0 & BIT(16)) ? MEM_DDR3 : MEM_RDDR3; | |
94be4bff DT |
1111 | } |
1112 | ||
cb328507 | 1113 | /* Get the number of DCT channels the memory controller is using. */ |
ddff876d DT |
1114 | static int k8_early_channel_count(struct amd64_pvt *pvt) |
1115 | { | |
cb328507 | 1116 | int flag; |
ddff876d | 1117 | |
9f56da0e | 1118 | if (pvt->ext_model >= K8_REV_F) |
ddff876d | 1119 | /* RevF (NPT) and later */ |
41d8bfab | 1120 | flag = pvt->dclr0 & WIDTH_128; |
9f56da0e | 1121 | else |
ddff876d DT |
1122 | /* RevE and earlier */ |
1123 | flag = pvt->dclr0 & REVE_WIDTH_128; | |
ddff876d DT |
1124 | |
1125 | /* not used */ | |
1126 | pvt->dclr1 = 0; | |
1127 | ||
1128 | return (flag) ? 2 : 1; | |
1129 | } | |
1130 | ||
70046624 | 1131 | /* On F10h and later ErrAddr is MC4_ADDR[47:1] */ |
a4b4bedc | 1132 | static u64 get_error_address(struct amd64_pvt *pvt, struct mce *m) |
ddff876d | 1133 | { |
2ec591ac BP |
1134 | u16 mce_nid = amd_get_nb_id(m->extcpu); |
1135 | struct mem_ctl_info *mci; | |
70046624 BP |
1136 | u8 start_bit = 1; |
1137 | u8 end_bit = 47; | |
2ec591ac BP |
1138 | u64 addr; |
1139 | ||
1140 | mci = edac_mc_find(mce_nid); | |
1141 | if (!mci) | |
1142 | return 0; | |
1143 | ||
1144 | pvt = mci->pvt_info; | |
70046624 | 1145 | |
a4b4bedc | 1146 | if (pvt->fam == 0xf) { |
70046624 BP |
1147 | start_bit = 3; |
1148 | end_bit = 39; | |
1149 | } | |
1150 | ||
10ef6b0d | 1151 | addr = m->addr & GENMASK_ULL(end_bit, start_bit); |
c1ae6830 BP |
1152 | |
1153 | /* | |
1154 | * Erratum 637 workaround | |
1155 | */ | |
a4b4bedc | 1156 | if (pvt->fam == 0x15) { |
c1ae6830 BP |
1157 | u64 cc6_base, tmp_addr; |
1158 | u32 tmp; | |
8b84c8df | 1159 | u8 intlv_en; |
c1ae6830 | 1160 | |
10ef6b0d | 1161 | if ((addr & GENMASK_ULL(47, 24)) >> 24 != 0x00fdf7) |
c1ae6830 BP |
1162 | return addr; |
1163 | ||
c1ae6830 BP |
1164 | |
1165 | amd64_read_pci_cfg(pvt->F1, DRAM_LOCAL_NODE_LIM, &tmp); | |
1166 | intlv_en = tmp >> 21 & 0x7; | |
1167 | ||
1168 | /* add [47:27] + 3 trailing bits */ | |
10ef6b0d | 1169 | cc6_base = (tmp & GENMASK_ULL(20, 0)) << 3; |
c1ae6830 BP |
1170 | |
1171 | /* reverse and add DramIntlvEn */ | |
1172 | cc6_base |= intlv_en ^ 0x7; | |
1173 | ||
1174 | /* pin at [47:24] */ | |
1175 | cc6_base <<= 24; | |
1176 | ||
1177 | if (!intlv_en) | |
10ef6b0d | 1178 | return cc6_base | (addr & GENMASK_ULL(23, 0)); |
c1ae6830 BP |
1179 | |
1180 | amd64_read_pci_cfg(pvt->F1, DRAM_LOCAL_NODE_BASE, &tmp); | |
1181 | ||
1182 | /* faster log2 */ | |
10ef6b0d | 1183 | tmp_addr = (addr & GENMASK_ULL(23, 12)) << __fls(intlv_en + 1); |
c1ae6830 BP |
1184 | |
1185 | /* OR DramIntlvSel into bits [14:12] */ | |
10ef6b0d | 1186 | tmp_addr |= (tmp & GENMASK_ULL(23, 21)) >> 9; |
c1ae6830 BP |
1187 | |
1188 | /* add remaining [11:0] bits from original MC4_ADDR */ | |
10ef6b0d | 1189 | tmp_addr |= addr & GENMASK_ULL(11, 0); |
c1ae6830 BP |
1190 | |
1191 | return cc6_base | tmp_addr; | |
1192 | } | |
1193 | ||
1194 | return addr; | |
ddff876d DT |
1195 | } |
1196 | ||
e2c0bffe DB |
1197 | static struct pci_dev *pci_get_related_function(unsigned int vendor, |
1198 | unsigned int device, | |
1199 | struct pci_dev *related) | |
1200 | { | |
1201 | struct pci_dev *dev = NULL; | |
1202 | ||
1203 | while ((dev = pci_get_device(vendor, device, dev))) { | |
1204 | if (pci_domain_nr(dev->bus) == pci_domain_nr(related->bus) && | |
1205 | (dev->bus->number == related->bus->number) && | |
1206 | (PCI_SLOT(dev->devfn) == PCI_SLOT(related->devfn))) | |
1207 | break; | |
1208 | } | |
1209 | ||
1210 | return dev; | |
1211 | } | |
1212 | ||
7f19bf75 | 1213 | static void read_dram_base_limit_regs(struct amd64_pvt *pvt, unsigned range) |
ddff876d | 1214 | { |
e2c0bffe | 1215 | struct amd_northbridge *nb; |
18b94f66 AG |
1216 | struct pci_dev *f1 = NULL; |
1217 | unsigned int pci_func; | |
71d2a32e | 1218 | int off = range << 3; |
e2c0bffe | 1219 | u32 llim; |
ddff876d | 1220 | |
7f19bf75 BP |
1221 | amd64_read_pci_cfg(pvt->F1, DRAM_BASE_LO + off, &pvt->ranges[range].base.lo); |
1222 | amd64_read_pci_cfg(pvt->F1, DRAM_LIMIT_LO + off, &pvt->ranges[range].lim.lo); | |
ddff876d | 1223 | |
18b94f66 | 1224 | if (pvt->fam == 0xf) |
7f19bf75 | 1225 | return; |
ddff876d | 1226 | |
7f19bf75 BP |
1227 | if (!dram_rw(pvt, range)) |
1228 | return; | |
ddff876d | 1229 | |
7f19bf75 BP |
1230 | amd64_read_pci_cfg(pvt->F1, DRAM_BASE_HI + off, &pvt->ranges[range].base.hi); |
1231 | amd64_read_pci_cfg(pvt->F1, DRAM_LIMIT_HI + off, &pvt->ranges[range].lim.hi); | |
f08e457c | 1232 | |
e2c0bffe | 1233 | /* F15h: factor in CC6 save area by reading dst node's limit reg */ |
18b94f66 | 1234 | if (pvt->fam != 0x15) |
e2c0bffe | 1235 | return; |
f08e457c | 1236 | |
e2c0bffe DB |
1237 | nb = node_to_amd_nb(dram_dst_node(pvt, range)); |
1238 | if (WARN_ON(!nb)) | |
1239 | return; | |
f08e457c | 1240 | |
a597d2a5 AG |
1241 | if (pvt->model == 0x60) |
1242 | pci_func = PCI_DEVICE_ID_AMD_15H_M60H_NB_F1; | |
1243 | else if (pvt->model == 0x30) | |
1244 | pci_func = PCI_DEVICE_ID_AMD_15H_M30H_NB_F1; | |
1245 | else | |
1246 | pci_func = PCI_DEVICE_ID_AMD_15H_NB_F1; | |
18b94f66 AG |
1247 | |
1248 | f1 = pci_get_related_function(nb->misc->vendor, pci_func, nb->misc); | |
e2c0bffe DB |
1249 | if (WARN_ON(!f1)) |
1250 | return; | |
f08e457c | 1251 | |
e2c0bffe | 1252 | amd64_read_pci_cfg(f1, DRAM_LOCAL_NODE_LIM, &llim); |
f08e457c | 1253 | |
10ef6b0d | 1254 | pvt->ranges[range].lim.lo &= GENMASK_ULL(15, 0); |
f08e457c | 1255 | |
e2c0bffe DB |
1256 | /* {[39:27],111b} */ |
1257 | pvt->ranges[range].lim.lo |= ((llim & 0x1fff) << 3 | 0x7) << 16; | |
f08e457c | 1258 | |
10ef6b0d | 1259 | pvt->ranges[range].lim.hi &= GENMASK_ULL(7, 0); |
f08e457c | 1260 | |
e2c0bffe DB |
1261 | /* [47:40] */ |
1262 | pvt->ranges[range].lim.hi |= llim >> 13; | |
1263 | ||
1264 | pci_dev_put(f1); | |
ddff876d DT |
1265 | } |
1266 | ||
f192c7b1 | 1267 | static void k8_map_sysaddr_to_csrow(struct mem_ctl_info *mci, u64 sys_addr, |
33ca0643 | 1268 | struct err_info *err) |
ddff876d | 1269 | { |
f192c7b1 | 1270 | struct amd64_pvt *pvt = mci->pvt_info; |
ddff876d | 1271 | |
33ca0643 | 1272 | error_address_to_page_and_offset(sys_addr, err); |
ab5a503c MCC |
1273 | |
1274 | /* | |
1275 | * Find out which node the error address belongs to. This may be | |
1276 | * different from the node that detected the error. | |
1277 | */ | |
33ca0643 BP |
1278 | err->src_mci = find_mc_by_sys_addr(mci, sys_addr); |
1279 | if (!err->src_mci) { | |
ab5a503c MCC |
1280 | amd64_mc_err(mci, "failed to map error addr 0x%lx to a node\n", |
1281 | (unsigned long)sys_addr); | |
33ca0643 | 1282 | err->err_code = ERR_NODE; |
ab5a503c MCC |
1283 | return; |
1284 | } | |
1285 | ||
1286 | /* Now map the sys_addr to a CSROW */ | |
33ca0643 BP |
1287 | err->csrow = sys_addr_to_csrow(err->src_mci, sys_addr); |
1288 | if (err->csrow < 0) { | |
1289 | err->err_code = ERR_CSROW; | |
ab5a503c MCC |
1290 | return; |
1291 | } | |
1292 | ||
ddff876d | 1293 | /* CHIPKILL enabled */ |
f192c7b1 | 1294 | if (pvt->nbcfg & NBCFG_CHIPKILL) { |
33ca0643 BP |
1295 | err->channel = get_channel_from_ecc_syndrome(mci, err->syndrome); |
1296 | if (err->channel < 0) { | |
ddff876d DT |
1297 | /* |
1298 | * Syndrome didn't map, so we don't know which of the | |
1299 | * 2 DIMMs is in error. So we need to ID 'both' of them | |
1300 | * as suspect. | |
1301 | */ | |
33ca0643 | 1302 | amd64_mc_warn(err->src_mci, "unknown syndrome 0x%04x - " |
ab5a503c | 1303 | "possible error reporting race\n", |
33ca0643 BP |
1304 | err->syndrome); |
1305 | err->err_code = ERR_CHANNEL; | |
ddff876d DT |
1306 | return; |
1307 | } | |
1308 | } else { | |
1309 | /* | |
1310 | * non-chipkill ecc mode | |
1311 | * | |
1312 | * The k8 documentation is unclear about how to determine the | |
1313 | * channel number when using non-chipkill memory. This method | |
1314 | * was obtained from email communication with someone at AMD. | |
1315 | * (Wish the email was placed in this comment - norsk) | |
1316 | */ | |
33ca0643 | 1317 | err->channel = ((sys_addr & BIT(3)) != 0); |
ddff876d | 1318 | } |
ddff876d DT |
1319 | } |
1320 | ||
41d8bfab | 1321 | static int ddr2_cs_size(unsigned i, bool dct_width) |
ddff876d | 1322 | { |
41d8bfab | 1323 | unsigned shift = 0; |
ddff876d | 1324 | |
41d8bfab BP |
1325 | if (i <= 2) |
1326 | shift = i; | |
1327 | else if (!(i & 0x1)) | |
1328 | shift = i >> 1; | |
1433eb99 | 1329 | else |
41d8bfab | 1330 | shift = (i + 1) >> 1; |
ddff876d | 1331 | |
41d8bfab BP |
1332 | return 128 << (shift + !!dct_width); |
1333 | } | |
1334 | ||
1335 | static int k8_dbam_to_chip_select(struct amd64_pvt *pvt, u8 dct, | |
a597d2a5 | 1336 | unsigned cs_mode, int cs_mask_nr) |
41d8bfab BP |
1337 | { |
1338 | u32 dclr = dct ? pvt->dclr1 : pvt->dclr0; | |
1339 | ||
1340 | if (pvt->ext_model >= K8_REV_F) { | |
1341 | WARN_ON(cs_mode > 11); | |
1342 | return ddr2_cs_size(cs_mode, dclr & WIDTH_128); | |
1343 | } | |
1344 | else if (pvt->ext_model >= K8_REV_D) { | |
11b0a314 | 1345 | unsigned diff; |
41d8bfab BP |
1346 | WARN_ON(cs_mode > 10); |
1347 | ||
11b0a314 BP |
1348 | /* |
1349 | * the below calculation, besides trying to win an obfuscated C | |
1350 | * contest, maps cs_mode values to DIMM chip select sizes. The | |
1351 | * mappings are: | |
1352 | * | |
1353 | * cs_mode CS size (mb) | |
1354 | * ======= ============ | |
1355 | * 0 32 | |
1356 | * 1 64 | |
1357 | * 2 128 | |
1358 | * 3 128 | |
1359 | * 4 256 | |
1360 | * 5 512 | |
1361 | * 6 256 | |
1362 | * 7 512 | |
1363 | * 8 1024 | |
1364 | * 9 1024 | |
1365 | * 10 2048 | |
1366 | * | |
1367 | * Basically, it calculates a value with which to shift the | |
1368 | * smallest CS size of 32MB. | |
1369 | * | |
1370 | * ddr[23]_cs_size have a similar purpose. | |
1371 | */ | |
1372 | diff = cs_mode/3 + (unsigned)(cs_mode > 5); | |
1373 | ||
1374 | return 32 << (cs_mode - diff); | |
41d8bfab BP |
1375 | } |
1376 | else { | |
1377 | WARN_ON(cs_mode > 6); | |
1378 | return 32 << cs_mode; | |
1379 | } | |
ddff876d DT |
1380 | } |
1381 | ||
1afd3c98 DT |
1382 | /* |
1383 | * Get the number of DCT channels in use. | |
1384 | * | |
1385 | * Return: | |
1386 | * number of Memory Channels in operation | |
1387 | * Pass back: | |
1388 | * contents of the DCL0_LOW register | |
1389 | */ | |
7d20d14d | 1390 | static int f1x_early_channel_count(struct amd64_pvt *pvt) |
1afd3c98 | 1391 | { |
6ba5dcdc | 1392 | int i, j, channels = 0; |
1afd3c98 | 1393 | |
7d20d14d | 1394 | /* On F10h, if we are in 128 bit mode, then we are using 2 channels */ |
a4b4bedc | 1395 | if (pvt->fam == 0x10 && (pvt->dclr0 & WIDTH_128)) |
7d20d14d | 1396 | return 2; |
1afd3c98 DT |
1397 | |
1398 | /* | |
d16149e8 BP |
1399 | * Need to check if in unganged mode: In such, there are 2 channels, |
1400 | * but they are not in 128 bit mode and thus the above 'dclr0' status | |
1401 | * bit will be OFF. | |
1afd3c98 DT |
1402 | * |
1403 | * Need to check DCT0[0] and DCT1[0] to see if only one of them has | |
1404 | * their CSEnable bit on. If so, then SINGLE DIMM case. | |
1405 | */ | |
956b9ba1 | 1406 | edac_dbg(0, "Data width is not 128 bits - need more decoding\n"); |
ddff876d | 1407 | |
1afd3c98 DT |
1408 | /* |
1409 | * Check DRAM Bank Address Mapping values for each DIMM to see if there | |
1410 | * is more than just one DIMM present in unganged mode. Need to check | |
1411 | * both controllers since DIMMs can be placed in either one. | |
1412 | */ | |
525a1b20 BP |
1413 | for (i = 0; i < 2; i++) { |
1414 | u32 dbam = (i ? pvt->dbam1 : pvt->dbam0); | |
1afd3c98 | 1415 | |
57a30854 WW |
1416 | for (j = 0; j < 4; j++) { |
1417 | if (DBAM_DIMM(j, dbam) > 0) { | |
1418 | channels++; | |
1419 | break; | |
1420 | } | |
1421 | } | |
1afd3c98 DT |
1422 | } |
1423 | ||
d16149e8 BP |
1424 | if (channels > 2) |
1425 | channels = 2; | |
1426 | ||
24f9a7fe | 1427 | amd64_info("MCT channel count: %d\n", channels); |
1afd3c98 DT |
1428 | |
1429 | return channels; | |
1afd3c98 DT |
1430 | } |
1431 | ||
f1cbbec9 YG |
1432 | static int f17_early_channel_count(struct amd64_pvt *pvt) |
1433 | { | |
1434 | int i, channels = 0; | |
1435 | ||
1436 | /* SDP Control bit 31 (SdpInit) is clear for unused UMC channels */ | |
4d30d2bc | 1437 | for_each_umc(i) |
f1cbbec9 YG |
1438 | channels += !!(pvt->umc[i].sdp_ctrl & UMC_SDP_INIT); |
1439 | ||
1440 | amd64_info("MCT channel count: %d\n", channels); | |
1441 | ||
1442 | return channels; | |
1443 | } | |
1444 | ||
41d8bfab | 1445 | static int ddr3_cs_size(unsigned i, bool dct_width) |
1afd3c98 | 1446 | { |
41d8bfab BP |
1447 | unsigned shift = 0; |
1448 | int cs_size = 0; | |
1449 | ||
1450 | if (i == 0 || i == 3 || i == 4) | |
1451 | cs_size = -1; | |
1452 | else if (i <= 2) | |
1453 | shift = i; | |
1454 | else if (i == 12) | |
1455 | shift = 7; | |
1456 | else if (!(i & 0x1)) | |
1457 | shift = i >> 1; | |
1458 | else | |
1459 | shift = (i + 1) >> 1; | |
1460 | ||
1461 | if (cs_size != -1) | |
1462 | cs_size = (128 * (1 << !!dct_width)) << shift; | |
1463 | ||
1464 | return cs_size; | |
1465 | } | |
1466 | ||
a597d2a5 AG |
1467 | static int ddr3_lrdimm_cs_size(unsigned i, unsigned rank_multiply) |
1468 | { | |
1469 | unsigned shift = 0; | |
1470 | int cs_size = 0; | |
1471 | ||
1472 | if (i < 4 || i == 6) | |
1473 | cs_size = -1; | |
1474 | else if (i == 12) | |
1475 | shift = 7; | |
1476 | else if (!(i & 0x1)) | |
1477 | shift = i >> 1; | |
1478 | else | |
1479 | shift = (i + 1) >> 1; | |
1480 | ||
1481 | if (cs_size != -1) | |
1482 | cs_size = rank_multiply * (128 << shift); | |
1483 | ||
1484 | return cs_size; | |
1485 | } | |
1486 | ||
1487 | static int ddr4_cs_size(unsigned i) | |
1488 | { | |
1489 | int cs_size = 0; | |
1490 | ||
1491 | if (i == 0) | |
1492 | cs_size = -1; | |
1493 | else if (i == 1) | |
1494 | cs_size = 1024; | |
1495 | else | |
1496 | /* Min cs_size = 1G */ | |
1497 | cs_size = 1024 * (1 << (i >> 1)); | |
1498 | ||
1499 | return cs_size; | |
1500 | } | |
1501 | ||
41d8bfab | 1502 | static int f10_dbam_to_chip_select(struct amd64_pvt *pvt, u8 dct, |
a597d2a5 | 1503 | unsigned cs_mode, int cs_mask_nr) |
41d8bfab BP |
1504 | { |
1505 | u32 dclr = dct ? pvt->dclr1 : pvt->dclr0; | |
1506 | ||
1507 | WARN_ON(cs_mode > 11); | |
1433eb99 BP |
1508 | |
1509 | if (pvt->dchr0 & DDR3_MODE || pvt->dchr1 & DDR3_MODE) | |
41d8bfab | 1510 | return ddr3_cs_size(cs_mode, dclr & WIDTH_128); |
1433eb99 | 1511 | else |
41d8bfab BP |
1512 | return ddr2_cs_size(cs_mode, dclr & WIDTH_128); |
1513 | } | |
1514 | ||
1515 | /* | |
1516 | * F15h supports only 64bit DCT interfaces | |
1517 | */ | |
1518 | static int f15_dbam_to_chip_select(struct amd64_pvt *pvt, u8 dct, | |
a597d2a5 | 1519 | unsigned cs_mode, int cs_mask_nr) |
41d8bfab BP |
1520 | { |
1521 | WARN_ON(cs_mode > 12); | |
1433eb99 | 1522 | |
41d8bfab | 1523 | return ddr3_cs_size(cs_mode, false); |
1afd3c98 DT |
1524 | } |
1525 | ||
a597d2a5 AG |
1526 | /* F15h M60h supports DDR4 mapping as well.. */ |
1527 | static int f15_m60h_dbam_to_chip_select(struct amd64_pvt *pvt, u8 dct, | |
1528 | unsigned cs_mode, int cs_mask_nr) | |
1529 | { | |
1530 | int cs_size; | |
1531 | u32 dcsm = pvt->csels[dct].csmasks[cs_mask_nr]; | |
1532 | ||
1533 | WARN_ON(cs_mode > 12); | |
1534 | ||
1535 | if (pvt->dram_type == MEM_DDR4) { | |
1536 | if (cs_mode > 9) | |
1537 | return -1; | |
1538 | ||
1539 | cs_size = ddr4_cs_size(cs_mode); | |
1540 | } else if (pvt->dram_type == MEM_LRDDR3) { | |
1541 | unsigned rank_multiply = dcsm & 0xf; | |
1542 | ||
1543 | if (rank_multiply == 3) | |
1544 | rank_multiply = 4; | |
1545 | cs_size = ddr3_lrdimm_cs_size(cs_mode, rank_multiply); | |
1546 | } else { | |
1547 | /* Minimum cs size is 512mb for F15hM60h*/ | |
1548 | if (cs_mode == 0x1) | |
1549 | return -1; | |
1550 | ||
1551 | cs_size = ddr3_cs_size(cs_mode, false); | |
1552 | } | |
1553 | ||
1554 | return cs_size; | |
1555 | } | |
1556 | ||
94c1acf2 | 1557 | /* |
18b94f66 | 1558 | * F16h and F15h model 30h have only limited cs_modes. |
94c1acf2 AG |
1559 | */ |
1560 | static int f16_dbam_to_chip_select(struct amd64_pvt *pvt, u8 dct, | |
a597d2a5 | 1561 | unsigned cs_mode, int cs_mask_nr) |
94c1acf2 AG |
1562 | { |
1563 | WARN_ON(cs_mode > 12); | |
1564 | ||
1565 | if (cs_mode == 6 || cs_mode == 8 || | |
1566 | cs_mode == 9 || cs_mode == 12) | |
1567 | return -1; | |
1568 | else | |
1569 | return ddr3_cs_size(cs_mode, false); | |
1570 | } | |
1571 | ||
f1cbbec9 YG |
1572 | static int f17_base_addr_to_cs_size(struct amd64_pvt *pvt, u8 umc, |
1573 | unsigned int cs_mode, int csrow_nr) | |
1574 | { | |
1575 | u32 base_addr = pvt->csels[umc].csbases[csrow_nr]; | |
1576 | ||
1577 | /* Each mask is used for every two base addresses. */ | |
1578 | u32 addr_mask = pvt->csels[umc].csmasks[csrow_nr >> 1]; | |
1579 | ||
1580 | /* Register [31:1] = Address [39:9]. Size is in kBs here. */ | |
1581 | u32 size = ((addr_mask >> 1) - (base_addr >> 1) + 1) >> 1; | |
1582 | ||
1583 | edac_dbg(1, "BaseAddr: 0x%x, AddrMask: 0x%x\n", base_addr, addr_mask); | |
1584 | ||
1585 | /* Return size in MBs. */ | |
1586 | return size >> 10; | |
1587 | } | |
1588 | ||
5a5d2371 | 1589 | static void read_dram_ctl_register(struct amd64_pvt *pvt) |
6163b5d4 | 1590 | { |
6163b5d4 | 1591 | |
a4b4bedc | 1592 | if (pvt->fam == 0xf) |
5a5d2371 BP |
1593 | return; |
1594 | ||
7981a28f | 1595 | if (!amd64_read_pci_cfg(pvt->F2, DCT_SEL_LO, &pvt->dct_sel_lo)) { |
956b9ba1 JP |
1596 | edac_dbg(0, "F2x110 (DCTSelLow): 0x%08x, High range addrs at: 0x%x\n", |
1597 | pvt->dct_sel_lo, dct_sel_baseaddr(pvt)); | |
72381bd5 | 1598 | |
956b9ba1 JP |
1599 | edac_dbg(0, " DCTs operate in %s mode\n", |
1600 | (dct_ganging_enabled(pvt) ? "ganged" : "unganged")); | |
72381bd5 BP |
1601 | |
1602 | if (!dct_ganging_enabled(pvt)) | |
956b9ba1 JP |
1603 | edac_dbg(0, " Address range split per DCT: %s\n", |
1604 | (dct_high_range_enabled(pvt) ? "yes" : "no")); | |
72381bd5 | 1605 | |
956b9ba1 JP |
1606 | edac_dbg(0, " data interleave for ECC: %s, DRAM cleared since last warm reset: %s\n", |
1607 | (dct_data_intlv_enabled(pvt) ? "enabled" : "disabled"), | |
1608 | (dct_memory_cleared(pvt) ? "yes" : "no")); | |
72381bd5 | 1609 | |
956b9ba1 JP |
1610 | edac_dbg(0, " channel interleave: %s, " |
1611 | "interleave bits selector: 0x%x\n", | |
1612 | (dct_interleave_enabled(pvt) ? "enabled" : "disabled"), | |
1613 | dct_sel_interleave_addr(pvt)); | |
6163b5d4 DT |
1614 | } |
1615 | ||
7981a28f | 1616 | amd64_read_pci_cfg(pvt->F2, DCT_SEL_HI, &pvt->dct_sel_hi); |
6163b5d4 DT |
1617 | } |
1618 | ||
18b94f66 AG |
1619 | /* |
1620 | * Determine channel (DCT) based on the interleaving mode (see F15h M30h BKDG, | |
1621 | * 2.10.12 Memory Interleaving Modes). | |
1622 | */ | |
1623 | static u8 f15_m30h_determine_channel(struct amd64_pvt *pvt, u64 sys_addr, | |
1624 | u8 intlv_en, int num_dcts_intlv, | |
1625 | u32 dct_sel) | |
1626 | { | |
1627 | u8 channel = 0; | |
1628 | u8 select; | |
1629 | ||
1630 | if (!(intlv_en)) | |
1631 | return (u8)(dct_sel); | |
1632 | ||
1633 | if (num_dcts_intlv == 2) { | |
1634 | select = (sys_addr >> 8) & 0x3; | |
1635 | channel = select ? 0x3 : 0; | |
9d0e8d83 AG |
1636 | } else if (num_dcts_intlv == 4) { |
1637 | u8 intlv_addr = dct_sel_interleave_addr(pvt); | |
1638 | switch (intlv_addr) { | |
1639 | case 0x4: | |
1640 | channel = (sys_addr >> 8) & 0x3; | |
1641 | break; | |
1642 | case 0x5: | |
1643 | channel = (sys_addr >> 9) & 0x3; | |
1644 | break; | |
1645 | } | |
1646 | } | |
18b94f66 AG |
1647 | return channel; |
1648 | } | |
1649 | ||
f71d0a05 | 1650 | /* |
229a7a11 | 1651 | * Determine channel (DCT) based on the interleaving mode: F10h BKDG, 2.8.9 Memory |
f71d0a05 DT |
1652 | * Interleaving Modes. |
1653 | */ | |
b15f0fca | 1654 | static u8 f1x_determine_channel(struct amd64_pvt *pvt, u64 sys_addr, |
229a7a11 | 1655 | bool hi_range_sel, u8 intlv_en) |
6163b5d4 | 1656 | { |
151fa71c | 1657 | u8 dct_sel_high = (pvt->dct_sel_lo >> 1) & 1; |
6163b5d4 DT |
1658 | |
1659 | if (dct_ganging_enabled(pvt)) | |
229a7a11 | 1660 | return 0; |
6163b5d4 | 1661 | |
229a7a11 BP |
1662 | if (hi_range_sel) |
1663 | return dct_sel_high; | |
6163b5d4 | 1664 | |
229a7a11 BP |
1665 | /* |
1666 | * see F2x110[DctSelIntLvAddr] - channel interleave mode | |
1667 | */ | |
1668 | if (dct_interleave_enabled(pvt)) { | |
1669 | u8 intlv_addr = dct_sel_interleave_addr(pvt); | |
1670 | ||
1671 | /* return DCT select function: 0=DCT0, 1=DCT1 */ | |
1672 | if (!intlv_addr) | |
1673 | return sys_addr >> 6 & 1; | |
1674 | ||
1675 | if (intlv_addr & 0x2) { | |
1676 | u8 shift = intlv_addr & 0x1 ? 9 : 6; | |
dc0a50a8 | 1677 | u32 temp = hweight_long((u32) ((sys_addr >> 16) & 0x1F)) & 1; |
229a7a11 BP |
1678 | |
1679 | return ((sys_addr >> shift) & 1) ^ temp; | |
1680 | } | |
1681 | ||
dc0a50a8 YG |
1682 | if (intlv_addr & 0x4) { |
1683 | u8 shift = intlv_addr & 0x1 ? 9 : 8; | |
1684 | ||
1685 | return (sys_addr >> shift) & 1; | |
1686 | } | |
1687 | ||
229a7a11 BP |
1688 | return (sys_addr >> (12 + hweight8(intlv_en))) & 1; |
1689 | } | |
1690 | ||
1691 | if (dct_high_range_enabled(pvt)) | |
1692 | return ~dct_sel_high & 1; | |
6163b5d4 DT |
1693 | |
1694 | return 0; | |
1695 | } | |
1696 | ||
c8e518d5 | 1697 | /* Convert the sys_addr to the normalized DCT address */ |
c7e5301a | 1698 | static u64 f1x_get_norm_dct_addr(struct amd64_pvt *pvt, u8 range, |
c8e518d5 BP |
1699 | u64 sys_addr, bool hi_rng, |
1700 | u32 dct_sel_base_addr) | |
6163b5d4 DT |
1701 | { |
1702 | u64 chan_off; | |
c8e518d5 BP |
1703 | u64 dram_base = get_dram_base(pvt, range); |
1704 | u64 hole_off = f10_dhar_offset(pvt); | |
6f3508f6 | 1705 | u64 dct_sel_base_off = (u64)(pvt->dct_sel_hi & 0xFFFFFC00) << 16; |
6163b5d4 | 1706 | |
c8e518d5 BP |
1707 | if (hi_rng) { |
1708 | /* | |
1709 | * if | |
1710 | * base address of high range is below 4Gb | |
1711 | * (bits [47:27] at [31:11]) | |
1712 | * DRAM address space on this DCT is hoisted above 4Gb && | |
1713 | * sys_addr > 4Gb | |
1714 | * | |
1715 | * remove hole offset from sys_addr | |
1716 | * else | |
1717 | * remove high range offset from sys_addr | |
1718 | */ | |
1719 | if ((!(dct_sel_base_addr >> 16) || | |
1720 | dct_sel_base_addr < dhar_base(pvt)) && | |
972ea17a | 1721 | dhar_valid(pvt) && |
c8e518d5 | 1722 | (sys_addr >= BIT_64(32))) |
bc21fa57 | 1723 | chan_off = hole_off; |
6163b5d4 DT |
1724 | else |
1725 | chan_off = dct_sel_base_off; | |
1726 | } else { | |
c8e518d5 BP |
1727 | /* |
1728 | * if | |
1729 | * we have a valid hole && | |
1730 | * sys_addr > 4Gb | |
1731 | * | |
1732 | * remove hole | |
1733 | * else | |
1734 | * remove dram base to normalize to DCT address | |
1735 | */ | |
972ea17a | 1736 | if (dhar_valid(pvt) && (sys_addr >= BIT_64(32))) |
bc21fa57 | 1737 | chan_off = hole_off; |
6163b5d4 | 1738 | else |
c8e518d5 | 1739 | chan_off = dram_base; |
6163b5d4 DT |
1740 | } |
1741 | ||
10ef6b0d | 1742 | return (sys_addr & GENMASK_ULL(47,6)) - (chan_off & GENMASK_ULL(47,23)); |
6163b5d4 DT |
1743 | } |
1744 | ||
6163b5d4 DT |
1745 | /* |
1746 | * checks if the csrow passed in is marked as SPARED, if so returns the new | |
1747 | * spare row | |
1748 | */ | |
11c75ead | 1749 | static int f10_process_possible_spare(struct amd64_pvt *pvt, u8 dct, int csrow) |
6163b5d4 | 1750 | { |
614ec9d8 BP |
1751 | int tmp_cs; |
1752 | ||
1753 | if (online_spare_swap_done(pvt, dct) && | |
1754 | csrow == online_spare_bad_dramcs(pvt, dct)) { | |
1755 | ||
1756 | for_each_chip_select(tmp_cs, dct, pvt) { | |
1757 | if (chip_select_base(tmp_cs, dct, pvt) & 0x2) { | |
1758 | csrow = tmp_cs; | |
1759 | break; | |
1760 | } | |
1761 | } | |
6163b5d4 DT |
1762 | } |
1763 | return csrow; | |
1764 | } | |
1765 | ||
1766 | /* | |
1767 | * Iterate over the DRAM DCT "base" and "mask" registers looking for a | |
1768 | * SystemAddr match on the specified 'ChannelSelect' and 'NodeID' | |
1769 | * | |
1770 | * Return: | |
1771 | * -EINVAL: NOT FOUND | |
1772 | * 0..csrow = Chip-Select Row | |
1773 | */ | |
c7e5301a | 1774 | static int f1x_lookup_addr_in_dct(u64 in_addr, u8 nid, u8 dct) |
6163b5d4 DT |
1775 | { |
1776 | struct mem_ctl_info *mci; | |
1777 | struct amd64_pvt *pvt; | |
11c75ead | 1778 | u64 cs_base, cs_mask; |
6163b5d4 DT |
1779 | int cs_found = -EINVAL; |
1780 | int csrow; | |
1781 | ||
2ec591ac | 1782 | mci = edac_mc_find(nid); |
6163b5d4 DT |
1783 | if (!mci) |
1784 | return cs_found; | |
1785 | ||
1786 | pvt = mci->pvt_info; | |
1787 | ||
956b9ba1 | 1788 | edac_dbg(1, "input addr: 0x%llx, DCT: %d\n", in_addr, dct); |
6163b5d4 | 1789 | |
11c75ead BP |
1790 | for_each_chip_select(csrow, dct, pvt) { |
1791 | if (!csrow_enabled(csrow, dct, pvt)) | |
6163b5d4 DT |
1792 | continue; |
1793 | ||
11c75ead | 1794 | get_cs_base_and_mask(pvt, csrow, dct, &cs_base, &cs_mask); |
6163b5d4 | 1795 | |
956b9ba1 JP |
1796 | edac_dbg(1, " CSROW=%d CSBase=0x%llx CSMask=0x%llx\n", |
1797 | csrow, cs_base, cs_mask); | |
6163b5d4 | 1798 | |
11c75ead | 1799 | cs_mask = ~cs_mask; |
6163b5d4 | 1800 | |
956b9ba1 JP |
1801 | edac_dbg(1, " (InputAddr & ~CSMask)=0x%llx (CSBase & ~CSMask)=0x%llx\n", |
1802 | (in_addr & cs_mask), (cs_base & cs_mask)); | |
6163b5d4 | 1803 | |
11c75ead | 1804 | if ((in_addr & cs_mask) == (cs_base & cs_mask)) { |
18b94f66 AG |
1805 | if (pvt->fam == 0x15 && pvt->model >= 0x30) { |
1806 | cs_found = csrow; | |
1807 | break; | |
1808 | } | |
11c75ead | 1809 | cs_found = f10_process_possible_spare(pvt, dct, csrow); |
6163b5d4 | 1810 | |
956b9ba1 | 1811 | edac_dbg(1, " MATCH csrow=%d\n", cs_found); |
6163b5d4 DT |
1812 | break; |
1813 | } | |
1814 | } | |
1815 | return cs_found; | |
1816 | } | |
1817 | ||
95b0ef55 BP |
1818 | /* |
1819 | * See F2x10C. Non-interleaved graphics framebuffer memory under the 16G is | |
1820 | * swapped with a region located at the bottom of memory so that the GPU can use | |
1821 | * the interleaved region and thus two channels. | |
1822 | */ | |
b15f0fca | 1823 | static u64 f1x_swap_interleaved_region(struct amd64_pvt *pvt, u64 sys_addr) |
95b0ef55 BP |
1824 | { |
1825 | u32 swap_reg, swap_base, swap_limit, rgn_size, tmp_addr; | |
1826 | ||
a4b4bedc | 1827 | if (pvt->fam == 0x10) { |
95b0ef55 | 1828 | /* only revC3 and revE have that feature */ |
a4b4bedc | 1829 | if (pvt->model < 4 || (pvt->model < 0xa && pvt->stepping < 3)) |
95b0ef55 BP |
1830 | return sys_addr; |
1831 | } | |
1832 | ||
7981a28f | 1833 | amd64_read_pci_cfg(pvt->F2, SWAP_INTLV_REG, &swap_reg); |
95b0ef55 BP |
1834 | |
1835 | if (!(swap_reg & 0x1)) | |
1836 | return sys_addr; | |
1837 | ||
1838 | swap_base = (swap_reg >> 3) & 0x7f; | |
1839 | swap_limit = (swap_reg >> 11) & 0x7f; | |
1840 | rgn_size = (swap_reg >> 20) & 0x7f; | |
1841 | tmp_addr = sys_addr >> 27; | |
1842 | ||
1843 | if (!(sys_addr >> 34) && | |
1844 | (((tmp_addr >= swap_base) && | |
1845 | (tmp_addr <= swap_limit)) || | |
1846 | (tmp_addr < rgn_size))) | |
1847 | return sys_addr ^ (u64)swap_base << 27; | |
1848 | ||
1849 | return sys_addr; | |
1850 | } | |
1851 | ||
f71d0a05 | 1852 | /* For a given @dram_range, check if @sys_addr falls within it. */ |
e761359a | 1853 | static int f1x_match_to_this_node(struct amd64_pvt *pvt, unsigned range, |
33ca0643 | 1854 | u64 sys_addr, int *chan_sel) |
f71d0a05 | 1855 | { |
229a7a11 | 1856 | int cs_found = -EINVAL; |
c8e518d5 | 1857 | u64 chan_addr; |
5d4b58e8 | 1858 | u32 dct_sel_base; |
11c75ead | 1859 | u8 channel; |
229a7a11 | 1860 | bool high_range = false; |
f71d0a05 | 1861 | |
7f19bf75 | 1862 | u8 node_id = dram_dst_node(pvt, range); |
229a7a11 | 1863 | u8 intlv_en = dram_intlv_en(pvt, range); |
7f19bf75 | 1864 | u32 intlv_sel = dram_intlv_sel(pvt, range); |
f71d0a05 | 1865 | |
956b9ba1 JP |
1866 | edac_dbg(1, "(range %d) SystemAddr= 0x%llx Limit=0x%llx\n", |
1867 | range, sys_addr, get_dram_limit(pvt, range)); | |
f71d0a05 | 1868 | |
355fba60 BP |
1869 | if (dhar_valid(pvt) && |
1870 | dhar_base(pvt) <= sys_addr && | |
1871 | sys_addr < BIT_64(32)) { | |
1872 | amd64_warn("Huh? Address is in the MMIO hole: 0x%016llx\n", | |
1873 | sys_addr); | |
1874 | return -EINVAL; | |
1875 | } | |
1876 | ||
f030ddfb | 1877 | if (intlv_en && (intlv_sel != ((sys_addr >> 12) & intlv_en))) |
f71d0a05 DT |
1878 | return -EINVAL; |
1879 | ||
b15f0fca | 1880 | sys_addr = f1x_swap_interleaved_region(pvt, sys_addr); |
95b0ef55 | 1881 | |
f71d0a05 DT |
1882 | dct_sel_base = dct_sel_baseaddr(pvt); |
1883 | ||
1884 | /* | |
1885 | * check whether addresses >= DctSelBaseAddr[47:27] are to be used to | |
1886 | * select between DCT0 and DCT1. | |
1887 | */ | |
1888 | if (dct_high_range_enabled(pvt) && | |
1889 | !dct_ganging_enabled(pvt) && | |
1890 | ((sys_addr >> 27) >= (dct_sel_base >> 11))) | |
229a7a11 | 1891 | high_range = true; |
f71d0a05 | 1892 | |
b15f0fca | 1893 | channel = f1x_determine_channel(pvt, sys_addr, high_range, intlv_en); |
f71d0a05 | 1894 | |
b15f0fca | 1895 | chan_addr = f1x_get_norm_dct_addr(pvt, range, sys_addr, |
c8e518d5 | 1896 | high_range, dct_sel_base); |
f71d0a05 | 1897 | |
e2f79dbd BP |
1898 | /* Remove node interleaving, see F1x120 */ |
1899 | if (intlv_en) | |
1900 | chan_addr = ((chan_addr >> (12 + hweight8(intlv_en))) << 12) | | |
1901 | (chan_addr & 0xfff); | |
f71d0a05 | 1902 | |
5d4b58e8 | 1903 | /* remove channel interleave */ |
f71d0a05 DT |
1904 | if (dct_interleave_enabled(pvt) && |
1905 | !dct_high_range_enabled(pvt) && | |
1906 | !dct_ganging_enabled(pvt)) { | |
5d4b58e8 BP |
1907 | |
1908 | if (dct_sel_interleave_addr(pvt) != 1) { | |
1909 | if (dct_sel_interleave_addr(pvt) == 0x3) | |
1910 | /* hash 9 */ | |
1911 | chan_addr = ((chan_addr >> 10) << 9) | | |
1912 | (chan_addr & 0x1ff); | |
1913 | else | |
1914 | /* A[6] or hash 6 */ | |
1915 | chan_addr = ((chan_addr >> 7) << 6) | | |
1916 | (chan_addr & 0x3f); | |
1917 | } else | |
1918 | /* A[12] */ | |
1919 | chan_addr = ((chan_addr >> 13) << 12) | | |
1920 | (chan_addr & 0xfff); | |
f71d0a05 DT |
1921 | } |
1922 | ||
956b9ba1 | 1923 | edac_dbg(1, " Normalized DCT addr: 0x%llx\n", chan_addr); |
f71d0a05 | 1924 | |
b15f0fca | 1925 | cs_found = f1x_lookup_addr_in_dct(chan_addr, node_id, channel); |
f71d0a05 | 1926 | |
33ca0643 | 1927 | if (cs_found >= 0) |
f71d0a05 | 1928 | *chan_sel = channel; |
33ca0643 | 1929 | |
f71d0a05 DT |
1930 | return cs_found; |
1931 | } | |
1932 | ||
18b94f66 AG |
1933 | static int f15_m30h_match_to_this_node(struct amd64_pvt *pvt, unsigned range, |
1934 | u64 sys_addr, int *chan_sel) | |
1935 | { | |
1936 | int cs_found = -EINVAL; | |
1937 | int num_dcts_intlv = 0; | |
1938 | u64 chan_addr, chan_offset; | |
1939 | u64 dct_base, dct_limit; | |
1940 | u32 dct_cont_base_reg, dct_cont_limit_reg, tmp; | |
1941 | u8 channel, alias_channel, leg_mmio_hole, dct_sel, dct_offset_en; | |
1942 | ||
1943 | u64 dhar_offset = f10_dhar_offset(pvt); | |
1944 | u8 intlv_addr = dct_sel_interleave_addr(pvt); | |
1945 | u8 node_id = dram_dst_node(pvt, range); | |
1946 | u8 intlv_en = dram_intlv_en(pvt, range); | |
1947 | ||
1948 | amd64_read_pci_cfg(pvt->F1, DRAM_CONT_BASE, &dct_cont_base_reg); | |
1949 | amd64_read_pci_cfg(pvt->F1, DRAM_CONT_LIMIT, &dct_cont_limit_reg); | |
1950 | ||
1951 | dct_offset_en = (u8) ((dct_cont_base_reg >> 3) & BIT(0)); | |
1952 | dct_sel = (u8) ((dct_cont_base_reg >> 4) & 0x7); | |
1953 | ||
1954 | edac_dbg(1, "(range %d) SystemAddr= 0x%llx Limit=0x%llx\n", | |
1955 | range, sys_addr, get_dram_limit(pvt, range)); | |
1956 | ||
1957 | if (!(get_dram_base(pvt, range) <= sys_addr) && | |
1958 | !(get_dram_limit(pvt, range) >= sys_addr)) | |
1959 | return -EINVAL; | |
1960 | ||
1961 | if (dhar_valid(pvt) && | |
1962 | dhar_base(pvt) <= sys_addr && | |
1963 | sys_addr < BIT_64(32)) { | |
1964 | amd64_warn("Huh? Address is in the MMIO hole: 0x%016llx\n", | |
1965 | sys_addr); | |
1966 | return -EINVAL; | |
1967 | } | |
1968 | ||
1969 | /* Verify sys_addr is within DCT Range. */ | |
4fc06b31 AG |
1970 | dct_base = (u64) dct_sel_baseaddr(pvt); |
1971 | dct_limit = (dct_cont_limit_reg >> 11) & 0x1FFF; | |
18b94f66 AG |
1972 | |
1973 | if (!(dct_cont_base_reg & BIT(0)) && | |
4fc06b31 AG |
1974 | !(dct_base <= (sys_addr >> 27) && |
1975 | dct_limit >= (sys_addr >> 27))) | |
18b94f66 AG |
1976 | return -EINVAL; |
1977 | ||
1978 | /* Verify number of dct's that participate in channel interleaving. */ | |
1979 | num_dcts_intlv = (int) hweight8(intlv_en); | |
1980 | ||
1981 | if (!(num_dcts_intlv % 2 == 0) || (num_dcts_intlv > 4)) | |
1982 | return -EINVAL; | |
1983 | ||
dc0a50a8 YG |
1984 | if (pvt->model >= 0x60) |
1985 | channel = f1x_determine_channel(pvt, sys_addr, false, intlv_en); | |
1986 | else | |
1987 | channel = f15_m30h_determine_channel(pvt, sys_addr, intlv_en, | |
1988 | num_dcts_intlv, dct_sel); | |
18b94f66 AG |
1989 | |
1990 | /* Verify we stay within the MAX number of channels allowed */ | |
7f3f5240 | 1991 | if (channel > 3) |
18b94f66 AG |
1992 | return -EINVAL; |
1993 | ||
1994 | leg_mmio_hole = (u8) (dct_cont_base_reg >> 1 & BIT(0)); | |
1995 | ||
1996 | /* Get normalized DCT addr */ | |
1997 | if (leg_mmio_hole && (sys_addr >= BIT_64(32))) | |
1998 | chan_offset = dhar_offset; | |
1999 | else | |
4fc06b31 | 2000 | chan_offset = dct_base << 27; |
18b94f66 AG |
2001 | |
2002 | chan_addr = sys_addr - chan_offset; | |
2003 | ||
2004 | /* remove channel interleave */ | |
2005 | if (num_dcts_intlv == 2) { | |
2006 | if (intlv_addr == 0x4) | |
2007 | chan_addr = ((chan_addr >> 9) << 8) | | |
2008 | (chan_addr & 0xff); | |
2009 | else if (intlv_addr == 0x5) | |
2010 | chan_addr = ((chan_addr >> 10) << 9) | | |
2011 | (chan_addr & 0x1ff); | |
2012 | else | |
2013 | return -EINVAL; | |
2014 | ||
2015 | } else if (num_dcts_intlv == 4) { | |
2016 | if (intlv_addr == 0x4) | |
2017 | chan_addr = ((chan_addr >> 10) << 8) | | |
2018 | (chan_addr & 0xff); | |
2019 | else if (intlv_addr == 0x5) | |
2020 | chan_addr = ((chan_addr >> 11) << 9) | | |
2021 | (chan_addr & 0x1ff); | |
2022 | else | |
2023 | return -EINVAL; | |
2024 | } | |
2025 | ||
2026 | if (dct_offset_en) { | |
2027 | amd64_read_pci_cfg(pvt->F1, | |
2028 | DRAM_CONT_HIGH_OFF + (int) channel * 4, | |
2029 | &tmp); | |
4fc06b31 | 2030 | chan_addr += (u64) ((tmp >> 11) & 0xfff) << 27; |
18b94f66 AG |
2031 | } |
2032 | ||
2033 | f15h_select_dct(pvt, channel); | |
2034 | ||
2035 | edac_dbg(1, " Normalized DCT addr: 0x%llx\n", chan_addr); | |
2036 | ||
2037 | /* | |
2038 | * Find Chip select: | |
2039 | * if channel = 3, then alias it to 1. This is because, in F15 M30h, | |
2040 | * there is support for 4 DCT's, but only 2 are currently functional. | |
2041 | * They are DCT0 and DCT3. But we have read all registers of DCT3 into | |
2042 | * pvt->csels[1]. So we need to use '1' here to get correct info. | |
2043 | * Refer F15 M30h BKDG Section 2.10 and 2.10.3 for clarifications. | |
2044 | */ | |
2045 | alias_channel = (channel == 3) ? 1 : channel; | |
2046 | ||
2047 | cs_found = f1x_lookup_addr_in_dct(chan_addr, node_id, alias_channel); | |
2048 | ||
2049 | if (cs_found >= 0) | |
2050 | *chan_sel = alias_channel; | |
2051 | ||
2052 | return cs_found; | |
2053 | } | |
2054 | ||
2055 | static int f1x_translate_sysaddr_to_cs(struct amd64_pvt *pvt, | |
2056 | u64 sys_addr, | |
2057 | int *chan_sel) | |
f71d0a05 | 2058 | { |
e761359a BP |
2059 | int cs_found = -EINVAL; |
2060 | unsigned range; | |
f71d0a05 | 2061 | |
7f19bf75 | 2062 | for (range = 0; range < DRAM_RANGES; range++) { |
7f19bf75 | 2063 | if (!dram_rw(pvt, range)) |
f71d0a05 DT |
2064 | continue; |
2065 | ||
18b94f66 AG |
2066 | if (pvt->fam == 0x15 && pvt->model >= 0x30) |
2067 | cs_found = f15_m30h_match_to_this_node(pvt, range, | |
2068 | sys_addr, | |
2069 | chan_sel); | |
f71d0a05 | 2070 | |
18b94f66 AG |
2071 | else if ((get_dram_base(pvt, range) <= sys_addr) && |
2072 | (get_dram_limit(pvt, range) >= sys_addr)) { | |
b15f0fca | 2073 | cs_found = f1x_match_to_this_node(pvt, range, |
33ca0643 | 2074 | sys_addr, chan_sel); |
f71d0a05 DT |
2075 | if (cs_found >= 0) |
2076 | break; | |
2077 | } | |
2078 | } | |
2079 | return cs_found; | |
2080 | } | |
2081 | ||
2082 | /* | |
bdc30a0c BP |
2083 | * For reference see "2.8.5 Routing DRAM Requests" in F10 BKDG. This code maps |
2084 | * a @sys_addr to NodeID, DCT (channel) and chip select (CSROW). | |
f71d0a05 | 2085 | * |
bdc30a0c BP |
2086 | * The @sys_addr is usually an error address received from the hardware |
2087 | * (MCX_ADDR). | |
f71d0a05 | 2088 | */ |
b15f0fca | 2089 | static void f1x_map_sysaddr_to_csrow(struct mem_ctl_info *mci, u64 sys_addr, |
33ca0643 | 2090 | struct err_info *err) |
f71d0a05 DT |
2091 | { |
2092 | struct amd64_pvt *pvt = mci->pvt_info; | |
f71d0a05 | 2093 | |
33ca0643 | 2094 | error_address_to_page_and_offset(sys_addr, err); |
ab5a503c | 2095 | |
33ca0643 BP |
2096 | err->csrow = f1x_translate_sysaddr_to_cs(pvt, sys_addr, &err->channel); |
2097 | if (err->csrow < 0) { | |
2098 | err->err_code = ERR_CSROW; | |
bdc30a0c BP |
2099 | return; |
2100 | } | |
2101 | ||
bdc30a0c BP |
2102 | /* |
2103 | * We need the syndromes for channel detection only when we're | |
2104 | * ganged. Otherwise @chan should already contain the channel at | |
2105 | * this point. | |
2106 | */ | |
a97fa68e | 2107 | if (dct_ganging_enabled(pvt)) |
33ca0643 | 2108 | err->channel = get_channel_from_ecc_syndrome(mci, err->syndrome); |
f71d0a05 DT |
2109 | } |
2110 | ||
f71d0a05 | 2111 | /* |
8566c4df | 2112 | * debug routine to display the memory sizes of all logical DIMMs and its |
cb328507 | 2113 | * CSROWs |
f71d0a05 | 2114 | */ |
d1ea71cd | 2115 | static void debug_display_dimm_sizes(struct amd64_pvt *pvt, u8 ctrl) |
f71d0a05 | 2116 | { |
bb89f5a0 | 2117 | int dimm, size0, size1; |
525a1b20 BP |
2118 | u32 *dcsb = ctrl ? pvt->csels[1].csbases : pvt->csels[0].csbases; |
2119 | u32 dbam = ctrl ? pvt->dbam1 : pvt->dbam0; | |
f71d0a05 | 2120 | |
a4b4bedc | 2121 | if (pvt->fam == 0xf) { |
8566c4df | 2122 | /* K8 families < revF not supported yet */ |
1433eb99 | 2123 | if (pvt->ext_model < K8_REV_F) |
8566c4df BP |
2124 | return; |
2125 | else | |
2126 | WARN_ON(ctrl != 0); | |
2127 | } | |
2128 | ||
7981a28f AG |
2129 | if (pvt->fam == 0x10) { |
2130 | dbam = (ctrl && !dct_ganging_enabled(pvt)) ? pvt->dbam1 | |
2131 | : pvt->dbam0; | |
2132 | dcsb = (ctrl && !dct_ganging_enabled(pvt)) ? | |
2133 | pvt->csels[1].csbases : | |
2134 | pvt->csels[0].csbases; | |
2135 | } else if (ctrl) { | |
2136 | dbam = pvt->dbam0; | |
2137 | dcsb = pvt->csels[1].csbases; | |
2138 | } | |
956b9ba1 JP |
2139 | edac_dbg(1, "F2x%d80 (DRAM Bank Address Mapping): 0x%08x\n", |
2140 | ctrl, dbam); | |
f71d0a05 | 2141 | |
8566c4df BP |
2142 | edac_printk(KERN_DEBUG, EDAC_MC, "DCT%d chip selects:\n", ctrl); |
2143 | ||
f71d0a05 DT |
2144 | /* Dump memory sizes for DIMM and its CSROWs */ |
2145 | for (dimm = 0; dimm < 4; dimm++) { | |
2146 | ||
2147 | size0 = 0; | |
11c75ead | 2148 | if (dcsb[dimm*2] & DCSB_CS_ENABLE) |
07ed82ef YG |
2149 | /* |
2150 | * For F15m60h, we need multiplier for LRDIMM cs_size | |
2151 | * calculation. We pass dimm value to the dbam_to_cs | |
a597d2a5 AG |
2152 | * mapper so we can find the multiplier from the |
2153 | * corresponding DCSM. | |
2154 | */ | |
41d8bfab | 2155 | size0 = pvt->ops->dbam_to_cs(pvt, ctrl, |
a597d2a5 AG |
2156 | DBAM_DIMM(dimm, dbam), |
2157 | dimm); | |
f71d0a05 DT |
2158 | |
2159 | size1 = 0; | |
11c75ead | 2160 | if (dcsb[dimm*2 + 1] & DCSB_CS_ENABLE) |
41d8bfab | 2161 | size1 = pvt->ops->dbam_to_cs(pvt, ctrl, |
a597d2a5 AG |
2162 | DBAM_DIMM(dimm, dbam), |
2163 | dimm); | |
f71d0a05 | 2164 | |
24f9a7fe | 2165 | amd64_info(EDAC_MC ": %d: %5dMB %d: %5dMB\n", |
bb89f5a0 BP |
2166 | dimm * 2, size0, |
2167 | dimm * 2 + 1, size1); | |
f71d0a05 DT |
2168 | } |
2169 | } | |
2170 | ||
d1ea71cd | 2171 | static struct amd64_family_type family_types[] = { |
4d37607a | 2172 | [K8_CPUS] = { |
0092b20d | 2173 | .ctl_name = "K8", |
8d5b5d9c | 2174 | .f1_id = PCI_DEVICE_ID_AMD_K8_NB_ADDRMAP, |
3f37a36b | 2175 | .f2_id = PCI_DEVICE_ID_AMD_K8_NB_MEMCTL, |
4d37607a | 2176 | .ops = { |
1433eb99 | 2177 | .early_channel_count = k8_early_channel_count, |
1433eb99 BP |
2178 | .map_sysaddr_to_csrow = k8_map_sysaddr_to_csrow, |
2179 | .dbam_to_cs = k8_dbam_to_chip_select, | |
4d37607a DT |
2180 | } |
2181 | }, | |
2182 | [F10_CPUS] = { | |
0092b20d | 2183 | .ctl_name = "F10h", |
8d5b5d9c | 2184 | .f1_id = PCI_DEVICE_ID_AMD_10H_NB_MAP, |
3f37a36b | 2185 | .f2_id = PCI_DEVICE_ID_AMD_10H_NB_DRAM, |
4d37607a | 2186 | .ops = { |
7d20d14d | 2187 | .early_channel_count = f1x_early_channel_count, |
b15f0fca | 2188 | .map_sysaddr_to_csrow = f1x_map_sysaddr_to_csrow, |
1433eb99 | 2189 | .dbam_to_cs = f10_dbam_to_chip_select, |
b2b0c605 BP |
2190 | } |
2191 | }, | |
2192 | [F15_CPUS] = { | |
2193 | .ctl_name = "F15h", | |
df71a053 | 2194 | .f1_id = PCI_DEVICE_ID_AMD_15H_NB_F1, |
3f37a36b | 2195 | .f2_id = PCI_DEVICE_ID_AMD_15H_NB_F2, |
b2b0c605 | 2196 | .ops = { |
7d20d14d | 2197 | .early_channel_count = f1x_early_channel_count, |
b15f0fca | 2198 | .map_sysaddr_to_csrow = f1x_map_sysaddr_to_csrow, |
41d8bfab | 2199 | .dbam_to_cs = f15_dbam_to_chip_select, |
4d37607a DT |
2200 | } |
2201 | }, | |
18b94f66 AG |
2202 | [F15_M30H_CPUS] = { |
2203 | .ctl_name = "F15h_M30h", | |
2204 | .f1_id = PCI_DEVICE_ID_AMD_15H_M30H_NB_F1, | |
3f37a36b | 2205 | .f2_id = PCI_DEVICE_ID_AMD_15H_M30H_NB_F2, |
18b94f66 AG |
2206 | .ops = { |
2207 | .early_channel_count = f1x_early_channel_count, | |
2208 | .map_sysaddr_to_csrow = f1x_map_sysaddr_to_csrow, | |
2209 | .dbam_to_cs = f16_dbam_to_chip_select, | |
18b94f66 AG |
2210 | } |
2211 | }, | |
a597d2a5 AG |
2212 | [F15_M60H_CPUS] = { |
2213 | .ctl_name = "F15h_M60h", | |
2214 | .f1_id = PCI_DEVICE_ID_AMD_15H_M60H_NB_F1, | |
3f37a36b | 2215 | .f2_id = PCI_DEVICE_ID_AMD_15H_M60H_NB_F2, |
a597d2a5 AG |
2216 | .ops = { |
2217 | .early_channel_count = f1x_early_channel_count, | |
2218 | .map_sysaddr_to_csrow = f1x_map_sysaddr_to_csrow, | |
2219 | .dbam_to_cs = f15_m60h_dbam_to_chip_select, | |
2220 | } | |
2221 | }, | |
94c1acf2 AG |
2222 | [F16_CPUS] = { |
2223 | .ctl_name = "F16h", | |
2224 | .f1_id = PCI_DEVICE_ID_AMD_16H_NB_F1, | |
3f37a36b | 2225 | .f2_id = PCI_DEVICE_ID_AMD_16H_NB_F2, |
94c1acf2 AG |
2226 | .ops = { |
2227 | .early_channel_count = f1x_early_channel_count, | |
2228 | .map_sysaddr_to_csrow = f1x_map_sysaddr_to_csrow, | |
2229 | .dbam_to_cs = f16_dbam_to_chip_select, | |
94c1acf2 AG |
2230 | } |
2231 | }, | |
85a8885b AG |
2232 | [F16_M30H_CPUS] = { |
2233 | .ctl_name = "F16h_M30h", | |
2234 | .f1_id = PCI_DEVICE_ID_AMD_16H_M30H_NB_F1, | |
3f37a36b | 2235 | .f2_id = PCI_DEVICE_ID_AMD_16H_M30H_NB_F2, |
85a8885b AG |
2236 | .ops = { |
2237 | .early_channel_count = f1x_early_channel_count, | |
2238 | .map_sysaddr_to_csrow = f1x_map_sysaddr_to_csrow, | |
2239 | .dbam_to_cs = f16_dbam_to_chip_select, | |
85a8885b AG |
2240 | } |
2241 | }, | |
f1cbbec9 YG |
2242 | [F17_CPUS] = { |
2243 | .ctl_name = "F17h", | |
2244 | .f0_id = PCI_DEVICE_ID_AMD_17H_DF_F0, | |
2245 | .f6_id = PCI_DEVICE_ID_AMD_17H_DF_F6, | |
2246 | .ops = { | |
2247 | .early_channel_count = f17_early_channel_count, | |
2248 | .dbam_to_cs = f17_base_addr_to_cs_size, | |
2249 | } | |
2250 | }, | |
8960de4a MJ |
2251 | [F17_M10H_CPUS] = { |
2252 | .ctl_name = "F17h_M10h", | |
2253 | .f0_id = PCI_DEVICE_ID_AMD_17H_M10H_DF_F0, | |
2254 | .f6_id = PCI_DEVICE_ID_AMD_17H_M10H_DF_F6, | |
2255 | .ops = { | |
2256 | .early_channel_count = f17_early_channel_count, | |
2257 | .dbam_to_cs = f17_base_addr_to_cs_size, | |
2258 | } | |
2259 | }, | |
6e846239 YG |
2260 | [F17_M30H_CPUS] = { |
2261 | .ctl_name = "F17h_M30h", | |
2262 | .f0_id = PCI_DEVICE_ID_AMD_17H_M30H_DF_F0, | |
2263 | .f6_id = PCI_DEVICE_ID_AMD_17H_M30H_DF_F6, | |
2264 | .ops = { | |
2265 | .early_channel_count = f17_early_channel_count, | |
2266 | .dbam_to_cs = f17_base_addr_to_cs_size, | |
2267 | } | |
2268 | }, | |
4d37607a DT |
2269 | }; |
2270 | ||
b1289d6f | 2271 | /* |
bfc04aec BP |
2272 | * These are tables of eigenvectors (one per line) which can be used for the |
2273 | * construction of the syndrome tables. The modified syndrome search algorithm | |
2274 | * uses those to find the symbol in error and thus the DIMM. | |
b1289d6f | 2275 | * |
bfc04aec | 2276 | * Algorithm courtesy of Ross LaFetra from AMD. |
b1289d6f | 2277 | */ |
c7e5301a | 2278 | static const u16 x4_vectors[] = { |
bfc04aec BP |
2279 | 0x2f57, 0x1afe, 0x66cc, 0xdd88, |
2280 | 0x11eb, 0x3396, 0x7f4c, 0xeac8, | |
2281 | 0x0001, 0x0002, 0x0004, 0x0008, | |
2282 | 0x1013, 0x3032, 0x4044, 0x8088, | |
2283 | 0x106b, 0x30d6, 0x70fc, 0xe0a8, | |
2284 | 0x4857, 0xc4fe, 0x13cc, 0x3288, | |
2285 | 0x1ac5, 0x2f4a, 0x5394, 0xa1e8, | |
2286 | 0x1f39, 0x251e, 0xbd6c, 0x6bd8, | |
2287 | 0x15c1, 0x2a42, 0x89ac, 0x4758, | |
2288 | 0x2b03, 0x1602, 0x4f0c, 0xca08, | |
2289 | 0x1f07, 0x3a0e, 0x6b04, 0xbd08, | |
2290 | 0x8ba7, 0x465e, 0x244c, 0x1cc8, | |
2291 | 0x2b87, 0x164e, 0x642c, 0xdc18, | |
2292 | 0x40b9, 0x80de, 0x1094, 0x20e8, | |
2293 | 0x27db, 0x1eb6, 0x9dac, 0x7b58, | |
2294 | 0x11c1, 0x2242, 0x84ac, 0x4c58, | |
2295 | 0x1be5, 0x2d7a, 0x5e34, 0xa718, | |
2296 | 0x4b39, 0x8d1e, 0x14b4, 0x28d8, | |
2297 | 0x4c97, 0xc87e, 0x11fc, 0x33a8, | |
2298 | 0x8e97, 0x497e, 0x2ffc, 0x1aa8, | |
2299 | 0x16b3, 0x3d62, 0x4f34, 0x8518, | |
2300 | 0x1e2f, 0x391a, 0x5cac, 0xf858, | |
2301 | 0x1d9f, 0x3b7a, 0x572c, 0xfe18, | |
2302 | 0x15f5, 0x2a5a, 0x5264, 0xa3b8, | |
2303 | 0x1dbb, 0x3b66, 0x715c, 0xe3f8, | |
2304 | 0x4397, 0xc27e, 0x17fc, 0x3ea8, | |
2305 | 0x1617, 0x3d3e, 0x6464, 0xb8b8, | |
2306 | 0x23ff, 0x12aa, 0xab6c, 0x56d8, | |
2307 | 0x2dfb, 0x1ba6, 0x913c, 0x7328, | |
2308 | 0x185d, 0x2ca6, 0x7914, 0x9e28, | |
2309 | 0x171b, 0x3e36, 0x7d7c, 0xebe8, | |
2310 | 0x4199, 0x82ee, 0x19f4, 0x2e58, | |
2311 | 0x4807, 0xc40e, 0x130c, 0x3208, | |
2312 | 0x1905, 0x2e0a, 0x5804, 0xac08, | |
2313 | 0x213f, 0x132a, 0xadfc, 0x5ba8, | |
2314 | 0x19a9, 0x2efe, 0xb5cc, 0x6f88, | |
b1289d6f DT |
2315 | }; |
2316 | ||
c7e5301a | 2317 | static const u16 x8_vectors[] = { |
bfc04aec BP |
2318 | 0x0145, 0x028a, 0x2374, 0x43c8, 0xa1f0, 0x0520, 0x0a40, 0x1480, |
2319 | 0x0211, 0x0422, 0x0844, 0x1088, 0x01b0, 0x44e0, 0x23c0, 0xed80, | |
2320 | 0x1011, 0x0116, 0x022c, 0x0458, 0x08b0, 0x8c60, 0x2740, 0x4e80, | |
2321 | 0x0411, 0x0822, 0x1044, 0x0158, 0x02b0, 0x2360, 0x46c0, 0xab80, | |
2322 | 0x0811, 0x1022, 0x012c, 0x0258, 0x04b0, 0x4660, 0x8cc0, 0x2780, | |
2323 | 0x2071, 0x40e2, 0xa0c4, 0x0108, 0x0210, 0x0420, 0x0840, 0x1080, | |
2324 | 0x4071, 0x80e2, 0x0104, 0x0208, 0x0410, 0x0820, 0x1040, 0x2080, | |
2325 | 0x8071, 0x0102, 0x0204, 0x0408, 0x0810, 0x1020, 0x2040, 0x4080, | |
2326 | 0x019d, 0x03d6, 0x136c, 0x2198, 0x50b0, 0xb2e0, 0x0740, 0x0e80, | |
2327 | 0x0189, 0x03ea, 0x072c, 0x0e58, 0x1cb0, 0x56e0, 0x37c0, 0xf580, | |
2328 | 0x01fd, 0x0376, 0x06ec, 0x0bb8, 0x1110, 0x2220, 0x4440, 0x8880, | |
2329 | 0x0163, 0x02c6, 0x1104, 0x0758, 0x0eb0, 0x2be0, 0x6140, 0xc280, | |
2330 | 0x02fd, 0x01c6, 0x0b5c, 0x1108, 0x07b0, 0x25a0, 0x8840, 0x6180, | |
2331 | 0x0801, 0x012e, 0x025c, 0x04b8, 0x1370, 0x26e0, 0x57c0, 0xb580, | |
2332 | 0x0401, 0x0802, 0x015c, 0x02b8, 0x22b0, 0x13e0, 0x7140, 0xe280, | |
2333 | 0x0201, 0x0402, 0x0804, 0x01b8, 0x11b0, 0x31a0, 0x8040, 0x7180, | |
2334 | 0x0101, 0x0202, 0x0404, 0x0808, 0x1010, 0x2020, 0x4040, 0x8080, | |
2335 | 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, | |
2336 | 0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000, 0x8000, | |
2337 | }; | |
2338 | ||
c7e5301a | 2339 | static int decode_syndrome(u16 syndrome, const u16 *vectors, unsigned num_vecs, |
d34a6ecd | 2340 | unsigned v_dim) |
b1289d6f | 2341 | { |
bfc04aec BP |
2342 | unsigned int i, err_sym; |
2343 | ||
2344 | for (err_sym = 0; err_sym < num_vecs / v_dim; err_sym++) { | |
2345 | u16 s = syndrome; | |
d34a6ecd BP |
2346 | unsigned v_idx = err_sym * v_dim; |
2347 | unsigned v_end = (err_sym + 1) * v_dim; | |
bfc04aec BP |
2348 | |
2349 | /* walk over all 16 bits of the syndrome */ | |
2350 | for (i = 1; i < (1U << 16); i <<= 1) { | |
2351 | ||
2352 | /* if bit is set in that eigenvector... */ | |
2353 | if (v_idx < v_end && vectors[v_idx] & i) { | |
2354 | u16 ev_comp = vectors[v_idx++]; | |
2355 | ||
2356 | /* ... and bit set in the modified syndrome, */ | |
2357 | if (s & i) { | |
2358 | /* remove it. */ | |
2359 | s ^= ev_comp; | |
4d37607a | 2360 | |
bfc04aec BP |
2361 | if (!s) |
2362 | return err_sym; | |
2363 | } | |
b1289d6f | 2364 | |
bfc04aec BP |
2365 | } else if (s & i) |
2366 | /* can't get to zero, move to next symbol */ | |
2367 | break; | |
2368 | } | |
b1289d6f DT |
2369 | } |
2370 | ||
956b9ba1 | 2371 | edac_dbg(0, "syndrome(%x) not found\n", syndrome); |
b1289d6f DT |
2372 | return -1; |
2373 | } | |
d27bf6fa | 2374 | |
bfc04aec BP |
2375 | static int map_err_sym_to_channel(int err_sym, int sym_size) |
2376 | { | |
2377 | if (sym_size == 4) | |
2378 | switch (err_sym) { | |
2379 | case 0x20: | |
2380 | case 0x21: | |
2381 | return 0; | |
2382 | break; | |
2383 | case 0x22: | |
2384 | case 0x23: | |
2385 | return 1; | |
2386 | break; | |
2387 | default: | |
2388 | return err_sym >> 4; | |
2389 | break; | |
2390 | } | |
2391 | /* x8 symbols */ | |
2392 | else | |
2393 | switch (err_sym) { | |
2394 | /* imaginary bits not in a DIMM */ | |
2395 | case 0x10: | |
2396 | WARN(1, KERN_ERR "Invalid error symbol: 0x%x\n", | |
2397 | err_sym); | |
2398 | return -1; | |
2399 | break; | |
2400 | ||
2401 | case 0x11: | |
2402 | return 0; | |
2403 | break; | |
2404 | case 0x12: | |
2405 | return 1; | |
2406 | break; | |
2407 | default: | |
2408 | return err_sym >> 3; | |
2409 | break; | |
2410 | } | |
2411 | return -1; | |
2412 | } | |
2413 | ||
2414 | static int get_channel_from_ecc_syndrome(struct mem_ctl_info *mci, u16 syndrome) | |
2415 | { | |
2416 | struct amd64_pvt *pvt = mci->pvt_info; | |
ad6a32e9 BP |
2417 | int err_sym = -1; |
2418 | ||
a3b7db09 | 2419 | if (pvt->ecc_sym_sz == 8) |
ad6a32e9 BP |
2420 | err_sym = decode_syndrome(syndrome, x8_vectors, |
2421 | ARRAY_SIZE(x8_vectors), | |
a3b7db09 BP |
2422 | pvt->ecc_sym_sz); |
2423 | else if (pvt->ecc_sym_sz == 4) | |
ad6a32e9 BP |
2424 | err_sym = decode_syndrome(syndrome, x4_vectors, |
2425 | ARRAY_SIZE(x4_vectors), | |
a3b7db09 | 2426 | pvt->ecc_sym_sz); |
ad6a32e9 | 2427 | else { |
a3b7db09 | 2428 | amd64_warn("Illegal syndrome type: %u\n", pvt->ecc_sym_sz); |
ad6a32e9 | 2429 | return err_sym; |
bfc04aec | 2430 | } |
ad6a32e9 | 2431 | |
a3b7db09 | 2432 | return map_err_sym_to_channel(err_sym, pvt->ecc_sym_sz); |
bfc04aec BP |
2433 | } |
2434 | ||
e70984d9 | 2435 | static void __log_ecc_error(struct mem_ctl_info *mci, struct err_info *err, |
33ca0643 | 2436 | u8 ecc_type) |
d27bf6fa | 2437 | { |
33ca0643 BP |
2438 | enum hw_event_mc_err_type err_type; |
2439 | const char *string; | |
d27bf6fa | 2440 | |
33ca0643 BP |
2441 | if (ecc_type == 2) |
2442 | err_type = HW_EVENT_ERR_CORRECTED; | |
2443 | else if (ecc_type == 1) | |
2444 | err_type = HW_EVENT_ERR_UNCORRECTED; | |
d12a969e YG |
2445 | else if (ecc_type == 3) |
2446 | err_type = HW_EVENT_ERR_DEFERRED; | |
33ca0643 BP |
2447 | else { |
2448 | WARN(1, "Something is rotten in the state of Denmark.\n"); | |
d27bf6fa DT |
2449 | return; |
2450 | } | |
2451 | ||
33ca0643 BP |
2452 | switch (err->err_code) { |
2453 | case DECODE_OK: | |
2454 | string = ""; | |
2455 | break; | |
2456 | case ERR_NODE: | |
2457 | string = "Failed to map error addr to a node"; | |
2458 | break; | |
2459 | case ERR_CSROW: | |
2460 | string = "Failed to map error addr to a csrow"; | |
2461 | break; | |
2462 | case ERR_CHANNEL: | |
713ad546 YG |
2463 | string = "Unknown syndrome - possible error reporting race"; |
2464 | break; | |
2465 | case ERR_SYND: | |
2466 | string = "MCA_SYND not valid - unknown syndrome and csrow"; | |
2467 | break; | |
2468 | case ERR_NORM_ADDR: | |
2469 | string = "Cannot decode normalized address"; | |
33ca0643 BP |
2470 | break; |
2471 | default: | |
2472 | string = "WTF error"; | |
2473 | break; | |
d27bf6fa | 2474 | } |
33ca0643 BP |
2475 | |
2476 | edac_mc_handle_error(err_type, mci, 1, | |
2477 | err->page, err->offset, err->syndrome, | |
2478 | err->csrow, err->channel, -1, | |
2479 | string, ""); | |
d27bf6fa DT |
2480 | } |
2481 | ||
df781d03 | 2482 | static inline void decode_bus_error(int node_id, struct mce *m) |
d27bf6fa | 2483 | { |
0c510cc8 DB |
2484 | struct mem_ctl_info *mci; |
2485 | struct amd64_pvt *pvt; | |
f192c7b1 | 2486 | u8 ecc_type = (m->status >> 45) & 0x3; |
66fed2d4 BP |
2487 | u8 xec = XEC(m->status, 0x1f); |
2488 | u16 ec = EC(m->status); | |
33ca0643 BP |
2489 | u64 sys_addr; |
2490 | struct err_info err; | |
d27bf6fa | 2491 | |
0c510cc8 DB |
2492 | mci = edac_mc_find(node_id); |
2493 | if (!mci) | |
2494 | return; | |
2495 | ||
2496 | pvt = mci->pvt_info; | |
2497 | ||
66fed2d4 | 2498 | /* Bail out early if this was an 'observed' error */ |
5980bb9c | 2499 | if (PP(ec) == NBSL_PP_OBS) |
b70ef010 | 2500 | return; |
d27bf6fa | 2501 | |
ecaf5606 BP |
2502 | /* Do only ECC errors */ |
2503 | if (xec && xec != F10_NBSL_EXT_ERR_ECC) | |
d27bf6fa | 2504 | return; |
d27bf6fa | 2505 | |
33ca0643 BP |
2506 | memset(&err, 0, sizeof(err)); |
2507 | ||
a4b4bedc | 2508 | sys_addr = get_error_address(pvt, m); |
33ca0643 | 2509 | |
ecaf5606 | 2510 | if (ecc_type == 2) |
33ca0643 BP |
2511 | err.syndrome = extract_syndrome(m->status); |
2512 | ||
2513 | pvt->ops->map_sysaddr_to_csrow(mci, sys_addr, &err); | |
2514 | ||
e70984d9 | 2515 | __log_ecc_error(mci, &err, ecc_type); |
d27bf6fa DT |
2516 | } |
2517 | ||
713ad546 YG |
2518 | /* |
2519 | * To find the UMC channel represented by this bank we need to match on its | |
2520 | * instance_id. The instance_id of a bank is held in the lower 32 bits of its | |
2521 | * IPID. | |
bdcee774 YG |
2522 | * |
2523 | * Currently, we can derive the channel number by looking at the 6th nibble in | |
2524 | * the instance_id. For example, instance_id=0xYXXXXX where Y is the channel | |
2525 | * number. | |
713ad546 | 2526 | */ |
bdcee774 | 2527 | static int find_umc_channel(struct mce *m) |
713ad546 | 2528 | { |
bdcee774 | 2529 | return (m->ipid & GENMASK(31, 0)) >> 20; |
713ad546 YG |
2530 | } |
2531 | ||
2532 | static void decode_umc_error(int node_id, struct mce *m) | |
2533 | { | |
2534 | u8 ecc_type = (m->status >> 45) & 0x3; | |
2535 | struct mem_ctl_info *mci; | |
2536 | struct amd64_pvt *pvt; | |
2537 | struct err_info err; | |
2538 | u64 sys_addr; | |
2539 | ||
2540 | mci = edac_mc_find(node_id); | |
2541 | if (!mci) | |
2542 | return; | |
2543 | ||
2544 | pvt = mci->pvt_info; | |
2545 | ||
2546 | memset(&err, 0, sizeof(err)); | |
2547 | ||
2548 | if (m->status & MCI_STATUS_DEFERRED) | |
2549 | ecc_type = 3; | |
2550 | ||
bdcee774 | 2551 | err.channel = find_umc_channel(m); |
713ad546 | 2552 | |
713ad546 YG |
2553 | if (!(m->status & MCI_STATUS_SYNDV)) { |
2554 | err.err_code = ERR_SYND; | |
2555 | goto log_error; | |
2556 | } | |
2557 | ||
2558 | if (ecc_type == 2) { | |
2559 | u8 length = (m->synd >> 18) & 0x3f; | |
2560 | ||
2561 | if (length) | |
2562 | err.syndrome = (m->synd >> 32) & GENMASK(length - 1, 0); | |
2563 | else | |
2564 | err.err_code = ERR_CHANNEL; | |
2565 | } | |
2566 | ||
2567 | err.csrow = m->synd & 0x7; | |
2568 | ||
3895ed6f YG |
2569 | if (umc_normaddr_to_sysaddr(m->addr, pvt->mc_node_id, err.channel, &sys_addr)) { |
2570 | err.err_code = ERR_NORM_ADDR; | |
2571 | goto log_error; | |
2572 | } | |
2573 | ||
2574 | error_address_to_page_and_offset(sys_addr, &err); | |
2575 | ||
713ad546 YG |
2576 | log_error: |
2577 | __log_ecc_error(mci, &err, ecc_type); | |
2578 | } | |
2579 | ||
0ec449ee | 2580 | /* |
3f37a36b BP |
2581 | * Use pvt->F3 which contains the F3 CPU PCI device to get the related |
2582 | * F1 (AddrMap) and F2 (Dct) devices. Return negative value on error. | |
936fc3af | 2583 | * Reserve F0 and F6 on systems with a UMC. |
0ec449ee | 2584 | */ |
936fc3af YG |
2585 | static int |
2586 | reserve_mc_sibling_devs(struct amd64_pvt *pvt, u16 pci_id1, u16 pci_id2) | |
2587 | { | |
2588 | if (pvt->umc) { | |
2589 | pvt->F0 = pci_get_related_function(pvt->F3->vendor, pci_id1, pvt->F3); | |
2590 | if (!pvt->F0) { | |
5246c540 | 2591 | amd64_err("F0 not found, device 0x%x (broken BIOS?)\n", pci_id1); |
936fc3af YG |
2592 | return -ENODEV; |
2593 | } | |
2594 | ||
2595 | pvt->F6 = pci_get_related_function(pvt->F3->vendor, pci_id2, pvt->F3); | |
2596 | if (!pvt->F6) { | |
2597 | pci_dev_put(pvt->F0); | |
2598 | pvt->F0 = NULL; | |
2599 | ||
5246c540 | 2600 | amd64_err("F6 not found: device 0x%x (broken BIOS?)\n", pci_id2); |
936fc3af YG |
2601 | return -ENODEV; |
2602 | } | |
5246c540 | 2603 | |
936fc3af YG |
2604 | edac_dbg(1, "F0: %s\n", pci_name(pvt->F0)); |
2605 | edac_dbg(1, "F3: %s\n", pci_name(pvt->F3)); | |
2606 | edac_dbg(1, "F6: %s\n", pci_name(pvt->F6)); | |
2607 | ||
2608 | return 0; | |
2609 | } | |
2610 | ||
0ec449ee | 2611 | /* Reserve the ADDRESS MAP Device */ |
936fc3af | 2612 | pvt->F1 = pci_get_related_function(pvt->F3->vendor, pci_id1, pvt->F3); |
8d5b5d9c | 2613 | if (!pvt->F1) { |
5246c540 | 2614 | amd64_err("F1 not found: device 0x%x (broken BIOS?)\n", pci_id1); |
bbd0c1f6 | 2615 | return -ENODEV; |
0ec449ee DT |
2616 | } |
2617 | ||
3f37a36b | 2618 | /* Reserve the DCT Device */ |
936fc3af | 2619 | pvt->F2 = pci_get_related_function(pvt->F3->vendor, pci_id2, pvt->F3); |
3f37a36b | 2620 | if (!pvt->F2) { |
8d5b5d9c BP |
2621 | pci_dev_put(pvt->F1); |
2622 | pvt->F1 = NULL; | |
0ec449ee | 2623 | |
5246c540 BP |
2624 | amd64_err("F2 not found: device 0x%x (broken BIOS?)\n", pci_id2); |
2625 | return -ENODEV; | |
0ec449ee | 2626 | } |
936fc3af | 2627 | |
956b9ba1 JP |
2628 | edac_dbg(1, "F1: %s\n", pci_name(pvt->F1)); |
2629 | edac_dbg(1, "F2: %s\n", pci_name(pvt->F2)); | |
2630 | edac_dbg(1, "F3: %s\n", pci_name(pvt->F3)); | |
0ec449ee DT |
2631 | |
2632 | return 0; | |
2633 | } | |
2634 | ||
360b7f3c | 2635 | static void free_mc_sibling_devs(struct amd64_pvt *pvt) |
0ec449ee | 2636 | { |
936fc3af YG |
2637 | if (pvt->umc) { |
2638 | pci_dev_put(pvt->F0); | |
2639 | pci_dev_put(pvt->F6); | |
2640 | } else { | |
2641 | pci_dev_put(pvt->F1); | |
2642 | pci_dev_put(pvt->F2); | |
2643 | } | |
0ec449ee DT |
2644 | } |
2645 | ||
b64ce7cd YG |
2646 | static void determine_ecc_sym_sz(struct amd64_pvt *pvt) |
2647 | { | |
2648 | pvt->ecc_sym_sz = 4; | |
2649 | ||
2650 | if (pvt->umc) { | |
2651 | u8 i; | |
2652 | ||
4d30d2bc | 2653 | for_each_umc(i) { |
b64ce7cd | 2654 | /* Check enabled channels only: */ |
7835961d YG |
2655 | if (pvt->umc[i].sdp_ctrl & UMC_SDP_INIT) { |
2656 | if (pvt->umc[i].ecc_ctrl & BIT(9)) { | |
2657 | pvt->ecc_sym_sz = 16; | |
2658 | return; | |
2659 | } else if (pvt->umc[i].ecc_ctrl & BIT(7)) { | |
2660 | pvt->ecc_sym_sz = 8; | |
2661 | return; | |
2662 | } | |
b64ce7cd YG |
2663 | } |
2664 | } | |
7835961d | 2665 | } else if (pvt->fam >= 0x10) { |
b64ce7cd YG |
2666 | u32 tmp; |
2667 | ||
2668 | amd64_read_pci_cfg(pvt->F3, EXT_NB_MCA_CFG, &tmp); | |
2669 | /* F16h has only DCT0, so no need to read dbam1. */ | |
2670 | if (pvt->fam != 0x16) | |
2671 | amd64_read_dct_pci_cfg(pvt, 1, DBAM0, &pvt->dbam1); | |
2672 | ||
2673 | /* F10h, revD and later can do x8 ECC too. */ | |
2674 | if ((pvt->fam > 0x10 || pvt->model > 7) && tmp & BIT(25)) | |
2675 | pvt->ecc_sym_sz = 8; | |
2676 | } | |
2677 | } | |
2678 | ||
2679 | /* | |
2680 | * Retrieve the hardware registers of the memory controller. | |
2681 | */ | |
2682 | static void __read_mc_regs_df(struct amd64_pvt *pvt) | |
2683 | { | |
2684 | u8 nid = pvt->mc_node_id; | |
2685 | struct amd64_umc *umc; | |
2686 | u32 i, umc_base; | |
2687 | ||
2688 | /* Read registers from each UMC */ | |
4d30d2bc | 2689 | for_each_umc(i) { |
b64ce7cd YG |
2690 | |
2691 | umc_base = get_umc_base(i); | |
2692 | umc = &pvt->umc[i]; | |
2693 | ||
07ed82ef YG |
2694 | amd_smn_read(nid, umc_base + UMCCH_DIMM_CFG, &umc->dimm_cfg); |
2695 | amd_smn_read(nid, umc_base + UMCCH_UMC_CFG, &umc->umc_cfg); | |
b64ce7cd YG |
2696 | amd_smn_read(nid, umc_base + UMCCH_SDP_CTRL, &umc->sdp_ctrl); |
2697 | amd_smn_read(nid, umc_base + UMCCH_ECC_CTRL, &umc->ecc_ctrl); | |
07ed82ef | 2698 | amd_smn_read(nid, umc_base + UMCCH_UMC_CAP_HI, &umc->umc_cap_hi); |
b64ce7cd YG |
2699 | } |
2700 | } | |
2701 | ||
0ec449ee DT |
2702 | /* |
2703 | * Retrieve the hardware registers of the memory controller (this includes the | |
2704 | * 'Address Map' and 'Misc' device regs) | |
2705 | */ | |
360b7f3c | 2706 | static void read_mc_regs(struct amd64_pvt *pvt) |
0ec449ee | 2707 | { |
b64ce7cd | 2708 | unsigned int range; |
0ec449ee | 2709 | u64 msr_val; |
0ec449ee DT |
2710 | |
2711 | /* | |
2712 | * Retrieve TOP_MEM and TOP_MEM2; no masking off of reserved bits since | |
b64ce7cd | 2713 | * those are Read-As-Zero. |
0ec449ee | 2714 | */ |
e97f8bb8 | 2715 | rdmsrl(MSR_K8_TOP_MEM1, pvt->top_mem); |
956b9ba1 | 2716 | edac_dbg(0, " TOP_MEM: 0x%016llx\n", pvt->top_mem); |
0ec449ee | 2717 | |
b64ce7cd | 2718 | /* Check first whether TOP_MEM2 is enabled: */ |
0ec449ee | 2719 | rdmsrl(MSR_K8_SYSCFG, msr_val); |
b64ce7cd | 2720 | if (msr_val & BIT(21)) { |
e97f8bb8 | 2721 | rdmsrl(MSR_K8_TOP_MEM2, pvt->top_mem2); |
956b9ba1 | 2722 | edac_dbg(0, " TOP_MEM2: 0x%016llx\n", pvt->top_mem2); |
b64ce7cd | 2723 | } else { |
956b9ba1 | 2724 | edac_dbg(0, " TOP_MEM2 disabled\n"); |
b64ce7cd YG |
2725 | } |
2726 | ||
2727 | if (pvt->umc) { | |
2728 | __read_mc_regs_df(pvt); | |
2729 | amd64_read_pci_cfg(pvt->F0, DF_DHAR, &pvt->dhar); | |
2730 | ||
2731 | goto skip; | |
2732 | } | |
0ec449ee | 2733 | |
5980bb9c | 2734 | amd64_read_pci_cfg(pvt->F3, NBCAP, &pvt->nbcap); |
0ec449ee | 2735 | |
5a5d2371 | 2736 | read_dram_ctl_register(pvt); |
0ec449ee | 2737 | |
7f19bf75 BP |
2738 | for (range = 0; range < DRAM_RANGES; range++) { |
2739 | u8 rw; | |
0ec449ee | 2740 | |
7f19bf75 BP |
2741 | /* read settings for this DRAM range */ |
2742 | read_dram_base_limit_regs(pvt, range); | |
2743 | ||
2744 | rw = dram_rw(pvt, range); | |
2745 | if (!rw) | |
2746 | continue; | |
2747 | ||
956b9ba1 JP |
2748 | edac_dbg(1, " DRAM range[%d], base: 0x%016llx; limit: 0x%016llx\n", |
2749 | range, | |
2750 | get_dram_base(pvt, range), | |
2751 | get_dram_limit(pvt, range)); | |
7f19bf75 | 2752 | |
956b9ba1 JP |
2753 | edac_dbg(1, " IntlvEn=%s; Range access: %s%s IntlvSel=%d DstNode=%d\n", |
2754 | dram_intlv_en(pvt, range) ? "Enabled" : "Disabled", | |
2755 | (rw & 0x1) ? "R" : "-", | |
2756 | (rw & 0x2) ? "W" : "-", | |
2757 | dram_intlv_sel(pvt, range), | |
2758 | dram_dst_node(pvt, range)); | |
0ec449ee DT |
2759 | } |
2760 | ||
bc21fa57 | 2761 | amd64_read_pci_cfg(pvt->F1, DHAR, &pvt->dhar); |
7981a28f | 2762 | amd64_read_dct_pci_cfg(pvt, 0, DBAM0, &pvt->dbam0); |
0ec449ee | 2763 | |
8d5b5d9c | 2764 | amd64_read_pci_cfg(pvt->F3, F10_ONLINE_SPARE, &pvt->online_spare); |
0ec449ee | 2765 | |
7981a28f AG |
2766 | amd64_read_dct_pci_cfg(pvt, 0, DCLR0, &pvt->dclr0); |
2767 | amd64_read_dct_pci_cfg(pvt, 0, DCHR0, &pvt->dchr0); | |
0ec449ee | 2768 | |
78da121e | 2769 | if (!dct_ganging_enabled(pvt)) { |
7981a28f AG |
2770 | amd64_read_dct_pci_cfg(pvt, 1, DCLR0, &pvt->dclr1); |
2771 | amd64_read_dct_pci_cfg(pvt, 1, DCHR0, &pvt->dchr1); | |
0ec449ee | 2772 | } |
ad6a32e9 | 2773 | |
b64ce7cd YG |
2774 | skip: |
2775 | read_dct_base_mask(pvt); | |
2776 | ||
a597d2a5 AG |
2777 | determine_memory_type(pvt); |
2778 | edac_dbg(1, " DIMM type: %s\n", edac_mem_types[pvt->dram_type]); | |
a3b7db09 | 2779 | |
b64ce7cd | 2780 | determine_ecc_sym_sz(pvt); |
ad6a32e9 | 2781 | |
b2b0c605 | 2782 | dump_misc_regs(pvt); |
0ec449ee DT |
2783 | } |
2784 | ||
2785 | /* | |
2786 | * NOTE: CPU Revision Dependent code | |
2787 | * | |
2788 | * Input: | |
11c75ead | 2789 | * @csrow_nr ChipSelect Row Number (0..NUM_CHIPSELECTS-1) |
0ec449ee DT |
2790 | * k8 private pointer to --> |
2791 | * DRAM Bank Address mapping register | |
2792 | * node_id | |
2793 | * DCL register where dual_channel_active is | |
2794 | * | |
2795 | * The DBAM register consists of 4 sets of 4 bits each definitions: | |
2796 | * | |
2797 | * Bits: CSROWs | |
2798 | * 0-3 CSROWs 0 and 1 | |
2799 | * 4-7 CSROWs 2 and 3 | |
2800 | * 8-11 CSROWs 4 and 5 | |
2801 | * 12-15 CSROWs 6 and 7 | |
2802 | * | |
2803 | * Values range from: 0 to 15 | |
2804 | * The meaning of the values depends on CPU revision and dual-channel state, | |
2805 | * see relevant BKDG more info. | |
2806 | * | |
2807 | * The memory controller provides for total of only 8 CSROWs in its current | |
2808 | * architecture. Each "pair" of CSROWs normally represents just one DIMM in | |
2809 | * single channel or two (2) DIMMs in dual channel mode. | |
2810 | * | |
2811 | * The following code logic collapses the various tables for CSROW based on CPU | |
2812 | * revision. | |
2813 | * | |
2814 | * Returns: | |
2815 | * The number of PAGE_SIZE pages on the specified CSROW number it | |
2816 | * encompasses | |
2817 | * | |
2818 | */ | |
eb77e6b8 | 2819 | static u32 get_csrow_nr_pages(struct amd64_pvt *pvt, u8 dct, int csrow_nr_orig) |
0ec449ee | 2820 | { |
f92cae45 | 2821 | u32 dbam = dct ? pvt->dbam1 : pvt->dbam0; |
eb77e6b8 YG |
2822 | int csrow_nr = csrow_nr_orig; |
2823 | u32 cs_mode, nr_pages; | |
0ec449ee | 2824 | |
eb77e6b8 YG |
2825 | if (!pvt->umc) |
2826 | csrow_nr >>= 1; | |
10de6497 | 2827 | |
eb77e6b8 | 2828 | cs_mode = DBAM_DIMM(csrow_nr, dbam); |
0ec449ee | 2829 | |
eb77e6b8 YG |
2830 | nr_pages = pvt->ops->dbam_to_cs(pvt, dct, cs_mode, csrow_nr); |
2831 | nr_pages <<= 20 - PAGE_SHIFT; | |
0ec449ee | 2832 | |
10de6497 | 2833 | edac_dbg(0, "csrow: %d, channel: %d, DBAM idx: %d\n", |
eb77e6b8 | 2834 | csrow_nr_orig, dct, cs_mode); |
10de6497 | 2835 | edac_dbg(0, "nr_pages/channel: %u\n", nr_pages); |
0ec449ee DT |
2836 | |
2837 | return nr_pages; | |
2838 | } | |
2839 | ||
2840 | /* | |
2841 | * Initialize the array of csrow attribute instances, based on the values | |
2842 | * from pci config hardware registers. | |
2843 | */ | |
360b7f3c | 2844 | static int init_csrows(struct mem_ctl_info *mci) |
0ec449ee | 2845 | { |
10de6497 | 2846 | struct amd64_pvt *pvt = mci->pvt_info; |
2d09d8f3 | 2847 | enum edac_type edac_mode = EDAC_NONE; |
0ec449ee | 2848 | struct csrow_info *csrow; |
de3910eb | 2849 | struct dimm_info *dimm; |
10de6497 | 2850 | int i, j, empty = 1; |
a895bf8b | 2851 | int nr_pages = 0; |
10de6497 | 2852 | u32 val; |
0ec449ee | 2853 | |
2d09d8f3 YG |
2854 | if (!pvt->umc) { |
2855 | amd64_read_pci_cfg(pvt->F3, NBCFG, &val); | |
0ec449ee | 2856 | |
2d09d8f3 | 2857 | pvt->nbcfg = val; |
0ec449ee | 2858 | |
2d09d8f3 YG |
2859 | edac_dbg(0, "node %d, NBCFG=0x%08x[ChipKillEccCap: %d|DramEccEn: %d]\n", |
2860 | pvt->mc_node_id, val, | |
2861 | !!(val & NBCFG_CHIPKILL), !!(val & NBCFG_ECC_ENABLE)); | |
2862 | } | |
0ec449ee | 2863 | |
10de6497 BP |
2864 | /* |
2865 | * We iterate over DCT0 here but we look at DCT1 in parallel, if needed. | |
2866 | */ | |
11c75ead | 2867 | for_each_chip_select(i, 0, pvt) { |
10de6497 BP |
2868 | bool row_dct0 = !!csrow_enabled(i, 0, pvt); |
2869 | bool row_dct1 = false; | |
0ec449ee | 2870 | |
a4b4bedc | 2871 | if (pvt->fam != 0xf) |
10de6497 BP |
2872 | row_dct1 = !!csrow_enabled(i, 1, pvt); |
2873 | ||
2874 | if (!row_dct0 && !row_dct1) | |
0ec449ee | 2875 | continue; |
0ec449ee | 2876 | |
10de6497 | 2877 | csrow = mci->csrows[i]; |
0ec449ee | 2878 | empty = 0; |
10de6497 BP |
2879 | |
2880 | edac_dbg(1, "MC node: %d, csrow: %d\n", | |
2881 | pvt->mc_node_id, i); | |
2882 | ||
1eef1282 | 2883 | if (row_dct0) { |
d1ea71cd | 2884 | nr_pages = get_csrow_nr_pages(pvt, 0, i); |
1eef1282 MCC |
2885 | csrow->channels[0]->dimm->nr_pages = nr_pages; |
2886 | } | |
11c75ead | 2887 | |
10de6497 | 2888 | /* K8 has only one DCT */ |
a4b4bedc | 2889 | if (pvt->fam != 0xf && row_dct1) { |
d1ea71cd | 2890 | int row_dct1_pages = get_csrow_nr_pages(pvt, 1, i); |
1eef1282 MCC |
2891 | |
2892 | csrow->channels[1]->dimm->nr_pages = row_dct1_pages; | |
2893 | nr_pages += row_dct1_pages; | |
2894 | } | |
0ec449ee | 2895 | |
10de6497 | 2896 | edac_dbg(1, "Total csrow%d pages: %u\n", i, nr_pages); |
0ec449ee | 2897 | |
2d09d8f3 YG |
2898 | /* Determine DIMM ECC mode: */ |
2899 | if (pvt->umc) { | |
2900 | if (mci->edac_ctl_cap & EDAC_FLAG_S4ECD4ED) | |
2901 | edac_mode = EDAC_S4ECD4ED; | |
2902 | else if (mci->edac_ctl_cap & EDAC_FLAG_SECDED) | |
2903 | edac_mode = EDAC_SECDED; | |
2904 | ||
2905 | } else if (pvt->nbcfg & NBCFG_ECC_ENABLE) { | |
2906 | edac_mode = (pvt->nbcfg & NBCFG_CHIPKILL) | |
2907 | ? EDAC_S4ECD4ED | |
2908 | : EDAC_SECDED; | |
2909 | } | |
084a4fcc MCC |
2910 | |
2911 | for (j = 0; j < pvt->channel_count; j++) { | |
de3910eb | 2912 | dimm = csrow->channels[j]->dimm; |
a597d2a5 | 2913 | dimm->mtype = pvt->dram_type; |
de3910eb | 2914 | dimm->edac_mode = edac_mode; |
084a4fcc | 2915 | } |
0ec449ee DT |
2916 | } |
2917 | ||
2918 | return empty; | |
2919 | } | |
d27bf6fa | 2920 | |
f6d6ae96 | 2921 | /* get all cores on this DCT */ |
8b84c8df | 2922 | static void get_cpus_on_this_dct_cpumask(struct cpumask *mask, u16 nid) |
f6d6ae96 BP |
2923 | { |
2924 | int cpu; | |
2925 | ||
2926 | for_each_online_cpu(cpu) | |
2927 | if (amd_get_nb_id(cpu) == nid) | |
2928 | cpumask_set_cpu(cpu, mask); | |
2929 | } | |
2930 | ||
2931 | /* check MCG_CTL on all the cpus on this node */ | |
d1ea71cd | 2932 | static bool nb_mce_bank_enabled_on_node(u16 nid) |
f6d6ae96 BP |
2933 | { |
2934 | cpumask_var_t mask; | |
50542251 | 2935 | int cpu, nbe; |
f6d6ae96 BP |
2936 | bool ret = false; |
2937 | ||
2938 | if (!zalloc_cpumask_var(&mask, GFP_KERNEL)) { | |
24f9a7fe | 2939 | amd64_warn("%s: Error allocating mask\n", __func__); |
f6d6ae96 BP |
2940 | return false; |
2941 | } | |
2942 | ||
2943 | get_cpus_on_this_dct_cpumask(mask, nid); | |
2944 | ||
f6d6ae96 BP |
2945 | rdmsr_on_cpus(mask, MSR_IA32_MCG_CTL, msrs); |
2946 | ||
2947 | for_each_cpu(cpu, mask) { | |
50542251 | 2948 | struct msr *reg = per_cpu_ptr(msrs, cpu); |
5980bb9c | 2949 | nbe = reg->l & MSR_MCGCTL_NBE; |
f6d6ae96 | 2950 | |
956b9ba1 JP |
2951 | edac_dbg(0, "core: %u, MCG_CTL: 0x%llx, NB MSR is %s\n", |
2952 | cpu, reg->q, | |
2953 | (nbe ? "enabled" : "disabled")); | |
f6d6ae96 BP |
2954 | |
2955 | if (!nbe) | |
2956 | goto out; | |
f6d6ae96 BP |
2957 | } |
2958 | ret = true; | |
2959 | ||
2960 | out: | |
f6d6ae96 BP |
2961 | free_cpumask_var(mask); |
2962 | return ret; | |
2963 | } | |
2964 | ||
c7e5301a | 2965 | static int toggle_ecc_err_reporting(struct ecc_settings *s, u16 nid, bool on) |
f6d6ae96 BP |
2966 | { |
2967 | cpumask_var_t cmask; | |
50542251 | 2968 | int cpu; |
f6d6ae96 BP |
2969 | |
2970 | if (!zalloc_cpumask_var(&cmask, GFP_KERNEL)) { | |
24f9a7fe | 2971 | amd64_warn("%s: error allocating mask\n", __func__); |
0de27884 | 2972 | return -ENOMEM; |
f6d6ae96 BP |
2973 | } |
2974 | ||
ae7bb7c6 | 2975 | get_cpus_on_this_dct_cpumask(cmask, nid); |
f6d6ae96 | 2976 | |
f6d6ae96 BP |
2977 | rdmsr_on_cpus(cmask, MSR_IA32_MCG_CTL, msrs); |
2978 | ||
2979 | for_each_cpu(cpu, cmask) { | |
2980 | ||
50542251 BP |
2981 | struct msr *reg = per_cpu_ptr(msrs, cpu); |
2982 | ||
f6d6ae96 | 2983 | if (on) { |
5980bb9c | 2984 | if (reg->l & MSR_MCGCTL_NBE) |
ae7bb7c6 | 2985 | s->flags.nb_mce_enable = 1; |
f6d6ae96 | 2986 | |
5980bb9c | 2987 | reg->l |= MSR_MCGCTL_NBE; |
f6d6ae96 BP |
2988 | } else { |
2989 | /* | |
d95cf4de | 2990 | * Turn off NB MCE reporting only when it was off before |
f6d6ae96 | 2991 | */ |
ae7bb7c6 | 2992 | if (!s->flags.nb_mce_enable) |
5980bb9c | 2993 | reg->l &= ~MSR_MCGCTL_NBE; |
f6d6ae96 | 2994 | } |
f6d6ae96 BP |
2995 | } |
2996 | wrmsr_on_cpus(cmask, MSR_IA32_MCG_CTL, msrs); | |
2997 | ||
f6d6ae96 BP |
2998 | free_cpumask_var(cmask); |
2999 | ||
3000 | return 0; | |
3001 | } | |
3002 | ||
c7e5301a | 3003 | static bool enable_ecc_error_reporting(struct ecc_settings *s, u16 nid, |
2299ef71 | 3004 | struct pci_dev *F3) |
f9431992 | 3005 | { |
2299ef71 | 3006 | bool ret = true; |
c9f4f26e | 3007 | u32 value, mask = 0x3; /* UECC/CECC enable */ |
f9431992 | 3008 | |
2299ef71 BP |
3009 | if (toggle_ecc_err_reporting(s, nid, ON)) { |
3010 | amd64_warn("Error enabling ECC reporting over MCGCTL!\n"); | |
3011 | return false; | |
3012 | } | |
3013 | ||
c9f4f26e | 3014 | amd64_read_pci_cfg(F3, NBCTL, &value); |
f9431992 | 3015 | |
ae7bb7c6 BP |
3016 | s->old_nbctl = value & mask; |
3017 | s->nbctl_valid = true; | |
f9431992 DT |
3018 | |
3019 | value |= mask; | |
c9f4f26e | 3020 | amd64_write_pci_cfg(F3, NBCTL, value); |
f9431992 | 3021 | |
a97fa68e | 3022 | amd64_read_pci_cfg(F3, NBCFG, &value); |
f9431992 | 3023 | |
956b9ba1 JP |
3024 | edac_dbg(0, "1: node %d, NBCFG=0x%08x[DramEccEn: %d]\n", |
3025 | nid, value, !!(value & NBCFG_ECC_ENABLE)); | |
f9431992 | 3026 | |
a97fa68e | 3027 | if (!(value & NBCFG_ECC_ENABLE)) { |
24f9a7fe | 3028 | amd64_warn("DRAM ECC disabled on this node, enabling...\n"); |
f9431992 | 3029 | |
ae7bb7c6 | 3030 | s->flags.nb_ecc_prev = 0; |
d95cf4de | 3031 | |
f9431992 | 3032 | /* Attempt to turn on DRAM ECC Enable */ |
a97fa68e BP |
3033 | value |= NBCFG_ECC_ENABLE; |
3034 | amd64_write_pci_cfg(F3, NBCFG, value); | |
f9431992 | 3035 | |
a97fa68e | 3036 | amd64_read_pci_cfg(F3, NBCFG, &value); |
f9431992 | 3037 | |
a97fa68e | 3038 | if (!(value & NBCFG_ECC_ENABLE)) { |
24f9a7fe BP |
3039 | amd64_warn("Hardware rejected DRAM ECC enable," |
3040 | "check memory DIMM configuration.\n"); | |
2299ef71 | 3041 | ret = false; |
f9431992 | 3042 | } else { |
24f9a7fe | 3043 | amd64_info("Hardware accepted DRAM ECC Enable\n"); |
f9431992 | 3044 | } |
d95cf4de | 3045 | } else { |
ae7bb7c6 | 3046 | s->flags.nb_ecc_prev = 1; |
f9431992 | 3047 | } |
d95cf4de | 3048 | |
956b9ba1 JP |
3049 | edac_dbg(0, "2: node %d, NBCFG=0x%08x[DramEccEn: %d]\n", |
3050 | nid, value, !!(value & NBCFG_ECC_ENABLE)); | |
f9431992 | 3051 | |
2299ef71 | 3052 | return ret; |
f9431992 DT |
3053 | } |
3054 | ||
c7e5301a | 3055 | static void restore_ecc_error_reporting(struct ecc_settings *s, u16 nid, |
360b7f3c | 3056 | struct pci_dev *F3) |
f9431992 | 3057 | { |
c9f4f26e BP |
3058 | u32 value, mask = 0x3; /* UECC/CECC enable */ |
3059 | ||
ae7bb7c6 | 3060 | if (!s->nbctl_valid) |
f9431992 DT |
3061 | return; |
3062 | ||
c9f4f26e | 3063 | amd64_read_pci_cfg(F3, NBCTL, &value); |
f9431992 | 3064 | value &= ~mask; |
ae7bb7c6 | 3065 | value |= s->old_nbctl; |
f9431992 | 3066 | |
c9f4f26e | 3067 | amd64_write_pci_cfg(F3, NBCTL, value); |
f9431992 | 3068 | |
ae7bb7c6 BP |
3069 | /* restore previous BIOS DRAM ECC "off" setting we force-enabled */ |
3070 | if (!s->flags.nb_ecc_prev) { | |
a97fa68e BP |
3071 | amd64_read_pci_cfg(F3, NBCFG, &value); |
3072 | value &= ~NBCFG_ECC_ENABLE; | |
3073 | amd64_write_pci_cfg(F3, NBCFG, value); | |
d95cf4de BP |
3074 | } |
3075 | ||
3076 | /* restore the NB Enable MCGCTL bit */ | |
2299ef71 | 3077 | if (toggle_ecc_err_reporting(s, nid, OFF)) |
24f9a7fe | 3078 | amd64_warn("Error restoring NB MCGCTL settings!\n"); |
f9431992 DT |
3079 | } |
3080 | ||
3081 | /* | |
2299ef71 BP |
3082 | * EDAC requires that the BIOS have ECC enabled before |
3083 | * taking over the processing of ECC errors. A command line | |
3084 | * option allows to force-enable hardware ECC later in | |
3085 | * enable_ecc_error_reporting(). | |
f9431992 | 3086 | */ |
cab4d277 BP |
3087 | static const char *ecc_msg = |
3088 | "ECC disabled in the BIOS or no ECC capability, module will not load.\n" | |
3089 | " Either enable ECC checking or force module loading by setting " | |
3090 | "'ecc_enable_override'.\n" | |
3091 | " (Note that use of the override may cause unknown side effects.)\n"; | |
be3468e8 | 3092 | |
c7e5301a | 3093 | static bool ecc_enabled(struct pci_dev *F3, u16 nid) |
f9431992 | 3094 | { |
06724535 | 3095 | bool nb_mce_en = false; |
196b79fc YG |
3096 | u8 ecc_en = 0, i; |
3097 | u32 value; | |
f9431992 | 3098 | |
196b79fc YG |
3099 | if (boot_cpu_data.x86 >= 0x17) { |
3100 | u8 umc_en_mask = 0, ecc_en_mask = 0; | |
f9431992 | 3101 | |
4d30d2bc | 3102 | for_each_umc(i) { |
196b79fc YG |
3103 | u32 base = get_umc_base(i); |
3104 | ||
3105 | /* Only check enabled UMCs. */ | |
3106 | if (amd_smn_read(nid, base + UMCCH_SDP_CTRL, &value)) | |
3107 | continue; | |
3108 | ||
3109 | if (!(value & UMC_SDP_INIT)) | |
3110 | continue; | |
3111 | ||
3112 | umc_en_mask |= BIT(i); | |
3113 | ||
3114 | if (amd_smn_read(nid, base + UMCCH_UMC_CAP_HI, &value)) | |
3115 | continue; | |
3116 | ||
3117 | if (value & UMC_ECC_ENABLED) | |
3118 | ecc_en_mask |= BIT(i); | |
3119 | } | |
3120 | ||
3121 | /* Check whether at least one UMC is enabled: */ | |
3122 | if (umc_en_mask) | |
3123 | ecc_en = umc_en_mask == ecc_en_mask; | |
11ab1cae YG |
3124 | else |
3125 | edac_dbg(0, "Node %d: No enabled UMCs.\n", nid); | |
196b79fc YG |
3126 | |
3127 | /* Assume UMC MCA banks are enabled. */ | |
3128 | nb_mce_en = true; | |
3129 | } else { | |
3130 | amd64_read_pci_cfg(F3, NBCFG, &value); | |
f9431992 | 3131 | |
196b79fc YG |
3132 | ecc_en = !!(value & NBCFG_ECC_ENABLE); |
3133 | ||
3134 | nb_mce_en = nb_mce_bank_enabled_on_node(nid); | |
3135 | if (!nb_mce_en) | |
11ab1cae | 3136 | edac_dbg(0, "NB MCE bank disabled, set MSR 0x%08x[4] on node %d to enable.\n", |
196b79fc YG |
3137 | MSR_IA32_MCG_CTL, nid); |
3138 | } | |
3139 | ||
11ab1cae YG |
3140 | amd64_info("Node %d: DRAM ECC %s.\n", |
3141 | nid, (ecc_en ? "enabled" : "disabled")); | |
f9431992 | 3142 | |
2299ef71 | 3143 | if (!ecc_en || !nb_mce_en) { |
11ab1cae | 3144 | amd64_info("%s", ecc_msg); |
2299ef71 BP |
3145 | return false; |
3146 | } | |
3147 | return true; | |
f9431992 DT |
3148 | } |
3149 | ||
2d09d8f3 YG |
3150 | static inline void |
3151 | f17h_determine_edac_ctl_cap(struct mem_ctl_info *mci, struct amd64_pvt *pvt) | |
3152 | { | |
662877e7 | 3153 | u8 i, ecc_en = 1, cpk_en = 1, dev_x4 = 1, dev_x16 = 1; |
2d09d8f3 | 3154 | |
4d30d2bc | 3155 | for_each_umc(i) { |
2d09d8f3 YG |
3156 | if (pvt->umc[i].sdp_ctrl & UMC_SDP_INIT) { |
3157 | ecc_en &= !!(pvt->umc[i].umc_cap_hi & UMC_ECC_ENABLED); | |
3158 | cpk_en &= !!(pvt->umc[i].umc_cap_hi & UMC_ECC_CHIPKILL_CAP); | |
662877e7 YG |
3159 | |
3160 | dev_x4 &= !!(pvt->umc[i].dimm_cfg & BIT(6)); | |
3161 | dev_x16 &= !!(pvt->umc[i].dimm_cfg & BIT(7)); | |
2d09d8f3 YG |
3162 | } |
3163 | } | |
3164 | ||
3165 | /* Set chipkill only if ECC is enabled: */ | |
3166 | if (ecc_en) { | |
3167 | mci->edac_ctl_cap |= EDAC_FLAG_SECDED; | |
3168 | ||
662877e7 YG |
3169 | if (!cpk_en) |
3170 | return; | |
3171 | ||
3172 | if (dev_x4) | |
2d09d8f3 | 3173 | mci->edac_ctl_cap |= EDAC_FLAG_S4ECD4ED; |
662877e7 YG |
3174 | else if (dev_x16) |
3175 | mci->edac_ctl_cap |= EDAC_FLAG_S16ECD16ED; | |
3176 | else | |
3177 | mci->edac_ctl_cap |= EDAC_FLAG_S8ECD8ED; | |
2d09d8f3 YG |
3178 | } |
3179 | } | |
3180 | ||
df71a053 BP |
3181 | static void setup_mci_misc_attrs(struct mem_ctl_info *mci, |
3182 | struct amd64_family_type *fam) | |
7d6034d3 DT |
3183 | { |
3184 | struct amd64_pvt *pvt = mci->pvt_info; | |
3185 | ||
3186 | mci->mtype_cap = MEM_FLAG_DDR2 | MEM_FLAG_RDDR2; | |
3187 | mci->edac_ctl_cap = EDAC_FLAG_NONE; | |
7d6034d3 | 3188 | |
2d09d8f3 YG |
3189 | if (pvt->umc) { |
3190 | f17h_determine_edac_ctl_cap(mci, pvt); | |
3191 | } else { | |
3192 | if (pvt->nbcap & NBCAP_SECDED) | |
3193 | mci->edac_ctl_cap |= EDAC_FLAG_SECDED; | |
7d6034d3 | 3194 | |
2d09d8f3 YG |
3195 | if (pvt->nbcap & NBCAP_CHIPKILL) |
3196 | mci->edac_ctl_cap |= EDAC_FLAG_S4ECD4ED; | |
3197 | } | |
7d6034d3 | 3198 | |
d1ea71cd | 3199 | mci->edac_cap = determine_edac_cap(pvt); |
7d6034d3 | 3200 | mci->mod_name = EDAC_MOD_STR; |
df71a053 | 3201 | mci->ctl_name = fam->ctl_name; |
e7934b70 | 3202 | mci->dev_name = pci_name(pvt->F3); |
7d6034d3 DT |
3203 | mci->ctl_page_to_phys = NULL; |
3204 | ||
7d6034d3 | 3205 | /* memory scrubber interface */ |
d1ea71cd BP |
3206 | mci->set_sdram_scrub_rate = set_scrub_rate; |
3207 | mci->get_sdram_scrub_rate = get_scrub_rate; | |
7d6034d3 DT |
3208 | } |
3209 | ||
0092b20d BP |
3210 | /* |
3211 | * returns a pointer to the family descriptor on success, NULL otherwise. | |
3212 | */ | |
d1ea71cd | 3213 | static struct amd64_family_type *per_family_init(struct amd64_pvt *pvt) |
395ae783 | 3214 | { |
0092b20d BP |
3215 | struct amd64_family_type *fam_type = NULL; |
3216 | ||
18b94f66 | 3217 | pvt->ext_model = boot_cpu_data.x86_model >> 4; |
b399151c | 3218 | pvt->stepping = boot_cpu_data.x86_stepping; |
18b94f66 AG |
3219 | pvt->model = boot_cpu_data.x86_model; |
3220 | pvt->fam = boot_cpu_data.x86; | |
3221 | ||
3222 | switch (pvt->fam) { | |
395ae783 | 3223 | case 0xf: |
d1ea71cd BP |
3224 | fam_type = &family_types[K8_CPUS]; |
3225 | pvt->ops = &family_types[K8_CPUS].ops; | |
395ae783 | 3226 | break; |
df71a053 | 3227 | |
395ae783 | 3228 | case 0x10: |
d1ea71cd BP |
3229 | fam_type = &family_types[F10_CPUS]; |
3230 | pvt->ops = &family_types[F10_CPUS].ops; | |
df71a053 BP |
3231 | break; |
3232 | ||
3233 | case 0x15: | |
18b94f66 | 3234 | if (pvt->model == 0x30) { |
d1ea71cd BP |
3235 | fam_type = &family_types[F15_M30H_CPUS]; |
3236 | pvt->ops = &family_types[F15_M30H_CPUS].ops; | |
18b94f66 | 3237 | break; |
a597d2a5 AG |
3238 | } else if (pvt->model == 0x60) { |
3239 | fam_type = &family_types[F15_M60H_CPUS]; | |
3240 | pvt->ops = &family_types[F15_M60H_CPUS].ops; | |
3241 | break; | |
18b94f66 AG |
3242 | } |
3243 | ||
d1ea71cd BP |
3244 | fam_type = &family_types[F15_CPUS]; |
3245 | pvt->ops = &family_types[F15_CPUS].ops; | |
395ae783 BP |
3246 | break; |
3247 | ||
94c1acf2 | 3248 | case 0x16: |
85a8885b AG |
3249 | if (pvt->model == 0x30) { |
3250 | fam_type = &family_types[F16_M30H_CPUS]; | |
3251 | pvt->ops = &family_types[F16_M30H_CPUS].ops; | |
3252 | break; | |
3253 | } | |
d1ea71cd BP |
3254 | fam_type = &family_types[F16_CPUS]; |
3255 | pvt->ops = &family_types[F16_CPUS].ops; | |
94c1acf2 AG |
3256 | break; |
3257 | ||
f1cbbec9 | 3258 | case 0x17: |
8960de4a MJ |
3259 | if (pvt->model >= 0x10 && pvt->model <= 0x2f) { |
3260 | fam_type = &family_types[F17_M10H_CPUS]; | |
3261 | pvt->ops = &family_types[F17_M10H_CPUS].ops; | |
3262 | break; | |
6e846239 YG |
3263 | } else if (pvt->model >= 0x30 && pvt->model <= 0x3f) { |
3264 | fam_type = &family_types[F17_M30H_CPUS]; | |
3265 | pvt->ops = &family_types[F17_M30H_CPUS].ops; | |
3266 | break; | |
8960de4a | 3267 | } |
c4a3e946 PW |
3268 | /* fall through */ |
3269 | case 0x18: | |
f1cbbec9 YG |
3270 | fam_type = &family_types[F17_CPUS]; |
3271 | pvt->ops = &family_types[F17_CPUS].ops; | |
c4a3e946 PW |
3272 | |
3273 | if (pvt->fam == 0x18) | |
3274 | family_types[F17_CPUS].ctl_name = "F18h"; | |
f1cbbec9 YG |
3275 | break; |
3276 | ||
395ae783 | 3277 | default: |
24f9a7fe | 3278 | amd64_err("Unsupported family!\n"); |
0092b20d | 3279 | return NULL; |
395ae783 | 3280 | } |
0092b20d | 3281 | |
df71a053 | 3282 | amd64_info("%s %sdetected (node %d).\n", fam_type->ctl_name, |
18b94f66 | 3283 | (pvt->fam == 0xf ? |
24f9a7fe BP |
3284 | (pvt->ext_model >= K8_REV_F ? "revF or later " |
3285 | : "revE or earlier ") | |
3286 | : ""), pvt->mc_node_id); | |
0092b20d | 3287 | return fam_type; |
395ae783 BP |
3288 | } |
3289 | ||
e339f1ec TI |
3290 | static const struct attribute_group *amd64_edac_attr_groups[] = { |
3291 | #ifdef CONFIG_EDAC_DEBUG | |
3292 | &amd64_edac_dbg_group, | |
3293 | #endif | |
3294 | #ifdef CONFIG_EDAC_AMD64_ERROR_INJECTION | |
3295 | &amd64_edac_inj_group, | |
3296 | #endif | |
3297 | NULL | |
3298 | }; | |
3299 | ||
bdcee774 YG |
3300 | /* Set the number of Unified Memory Controllers in the system. */ |
3301 | static void compute_num_umcs(void) | |
3302 | { | |
3303 | u8 model = boot_cpu_data.x86_model; | |
3304 | ||
3305 | if (boot_cpu_data.x86 < 0x17) | |
3306 | return; | |
3307 | ||
3308 | if (model >= 0x30 && model <= 0x3f) | |
3309 | num_umcs = 8; | |
3310 | else | |
3311 | num_umcs = 2; | |
3312 | ||
3313 | edac_dbg(1, "Number of UMCs: %x", num_umcs); | |
3314 | } | |
3315 | ||
3f37a36b | 3316 | static int init_one_instance(unsigned int nid) |
7d6034d3 | 3317 | { |
3f37a36b | 3318 | struct pci_dev *F3 = node_to_amd_nb(nid)->misc; |
0092b20d | 3319 | struct amd64_family_type *fam_type = NULL; |
360b7f3c | 3320 | struct mem_ctl_info *mci = NULL; |
ab5a503c | 3321 | struct edac_mc_layer layers[2]; |
3f37a36b | 3322 | struct amd64_pvt *pvt = NULL; |
936fc3af | 3323 | u16 pci_id1, pci_id2; |
7d6034d3 DT |
3324 | int err = 0, ret; |
3325 | ||
3326 | ret = -ENOMEM; | |
3327 | pvt = kzalloc(sizeof(struct amd64_pvt), GFP_KERNEL); | |
3328 | if (!pvt) | |
360b7f3c | 3329 | goto err_ret; |
7d6034d3 | 3330 | |
360b7f3c | 3331 | pvt->mc_node_id = nid; |
3f37a36b | 3332 | pvt->F3 = F3; |
7d6034d3 | 3333 | |
395ae783 | 3334 | ret = -EINVAL; |
d1ea71cd | 3335 | fam_type = per_family_init(pvt); |
0092b20d | 3336 | if (!fam_type) |
395ae783 BP |
3337 | goto err_free; |
3338 | ||
936fc3af | 3339 | if (pvt->fam >= 0x17) { |
bdcee774 | 3340 | pvt->umc = kcalloc(num_umcs, sizeof(struct amd64_umc), GFP_KERNEL); |
936fc3af YG |
3341 | if (!pvt->umc) { |
3342 | ret = -ENOMEM; | |
3343 | goto err_free; | |
3344 | } | |
3345 | ||
3346 | pci_id1 = fam_type->f0_id; | |
3347 | pci_id2 = fam_type->f6_id; | |
3348 | } else { | |
3349 | pci_id1 = fam_type->f1_id; | |
3350 | pci_id2 = fam_type->f2_id; | |
3351 | } | |
3352 | ||
3353 | err = reserve_mc_sibling_devs(pvt, pci_id1, pci_id2); | |
7d6034d3 | 3354 | if (err) |
936fc3af | 3355 | goto err_post_init; |
7d6034d3 | 3356 | |
360b7f3c | 3357 | read_mc_regs(pvt); |
7d6034d3 | 3358 | |
7d6034d3 DT |
3359 | /* |
3360 | * We need to determine how many memory channels there are. Then use | |
3361 | * that information for calculating the size of the dynamic instance | |
360b7f3c | 3362 | * tables in the 'mci' structure. |
7d6034d3 | 3363 | */ |
360b7f3c | 3364 | ret = -EINVAL; |
7d6034d3 DT |
3365 | pvt->channel_count = pvt->ops->early_channel_count(pvt); |
3366 | if (pvt->channel_count < 0) | |
360b7f3c | 3367 | goto err_siblings; |
7d6034d3 DT |
3368 | |
3369 | ret = -ENOMEM; | |
ab5a503c MCC |
3370 | layers[0].type = EDAC_MC_LAYER_CHIP_SELECT; |
3371 | layers[0].size = pvt->csels[0].b_cnt; | |
3372 | layers[0].is_virt_csrow = true; | |
3373 | layers[1].type = EDAC_MC_LAYER_CHANNEL; | |
f0a56c48 BP |
3374 | |
3375 | /* | |
3376 | * Always allocate two channels since we can have setups with DIMMs on | |
3377 | * only one channel. Also, this simplifies handling later for the price | |
3378 | * of a couple of KBs tops. | |
869adc43 YG |
3379 | * |
3380 | * On Fam17h+, the number of controllers may be greater than two. So set | |
3381 | * the size equal to the maximum number of UMCs. | |
f0a56c48 | 3382 | */ |
869adc43 YG |
3383 | if (pvt->fam >= 0x17) |
3384 | layers[1].size = num_umcs; | |
3385 | else | |
3386 | layers[1].size = 2; | |
ab5a503c | 3387 | layers[1].is_virt_csrow = false; |
f0a56c48 | 3388 | |
ca0907b9 | 3389 | mci = edac_mc_alloc(nid, ARRAY_SIZE(layers), layers, 0); |
7d6034d3 | 3390 | if (!mci) |
360b7f3c | 3391 | goto err_siblings; |
7d6034d3 DT |
3392 | |
3393 | mci->pvt_info = pvt; | |
3f37a36b | 3394 | mci->pdev = &pvt->F3->dev; |
7d6034d3 | 3395 | |
df71a053 | 3396 | setup_mci_misc_attrs(mci, fam_type); |
360b7f3c BP |
3397 | |
3398 | if (init_csrows(mci)) | |
7d6034d3 DT |
3399 | mci->edac_cap = EDAC_FLAG_NONE; |
3400 | ||
7d6034d3 | 3401 | ret = -ENODEV; |
e339f1ec | 3402 | if (edac_mc_add_mc_with_groups(mci, amd64_edac_attr_groups)) { |
956b9ba1 | 3403 | edac_dbg(1, "failed edac_mc_add_mc()\n"); |
7d6034d3 DT |
3404 | goto err_add_mc; |
3405 | } | |
3406 | ||
7d6034d3 DT |
3407 | return 0; |
3408 | ||
3409 | err_add_mc: | |
3410 | edac_mc_free(mci); | |
3411 | ||
360b7f3c BP |
3412 | err_siblings: |
3413 | free_mc_sibling_devs(pvt); | |
7d6034d3 | 3414 | |
936fc3af YG |
3415 | err_post_init: |
3416 | if (pvt->fam >= 0x17) | |
3417 | kfree(pvt->umc); | |
3418 | ||
360b7f3c BP |
3419 | err_free: |
3420 | kfree(pvt); | |
7d6034d3 | 3421 | |
360b7f3c | 3422 | err_ret: |
7d6034d3 DT |
3423 | return ret; |
3424 | } | |
3425 | ||
3f37a36b | 3426 | static int probe_one_instance(unsigned int nid) |
7d6034d3 | 3427 | { |
2299ef71 | 3428 | struct pci_dev *F3 = node_to_amd_nb(nid)->misc; |
ae7bb7c6 | 3429 | struct ecc_settings *s; |
3f37a36b | 3430 | int ret; |
7d6034d3 | 3431 | |
ae7bb7c6 BP |
3432 | ret = -ENOMEM; |
3433 | s = kzalloc(sizeof(struct ecc_settings), GFP_KERNEL); | |
3434 | if (!s) | |
2299ef71 | 3435 | goto err_out; |
ae7bb7c6 BP |
3436 | |
3437 | ecc_stngs[nid] = s; | |
3438 | ||
2299ef71 | 3439 | if (!ecc_enabled(F3, nid)) { |
4688c9b4 | 3440 | ret = 0; |
2299ef71 BP |
3441 | |
3442 | if (!ecc_enable_override) | |
3443 | goto err_enable; | |
3444 | ||
044e7a41 YG |
3445 | if (boot_cpu_data.x86 >= 0x17) { |
3446 | amd64_warn("Forcing ECC on is not recommended on newer systems. Please enable ECC in BIOS."); | |
3447 | goto err_enable; | |
3448 | } else | |
3449 | amd64_warn("Forcing ECC on!\n"); | |
2299ef71 BP |
3450 | |
3451 | if (!enable_ecc_error_reporting(s, nid, F3)) | |
3452 | goto err_enable; | |
3453 | } | |
3454 | ||
3f37a36b | 3455 | ret = init_one_instance(nid); |
360b7f3c | 3456 | if (ret < 0) { |
ae7bb7c6 | 3457 | amd64_err("Error probing instance: %d\n", nid); |
044e7a41 YG |
3458 | |
3459 | if (boot_cpu_data.x86 < 0x17) | |
3460 | restore_ecc_error_reporting(s, nid, F3); | |
2b9b2c46 YG |
3461 | |
3462 | goto err_enable; | |
360b7f3c | 3463 | } |
7d6034d3 DT |
3464 | |
3465 | return ret; | |
2299ef71 BP |
3466 | |
3467 | err_enable: | |
3468 | kfree(s); | |
3469 | ecc_stngs[nid] = NULL; | |
3470 | ||
3471 | err_out: | |
3472 | return ret; | |
7d6034d3 DT |
3473 | } |
3474 | ||
3f37a36b | 3475 | static void remove_one_instance(unsigned int nid) |
7d6034d3 | 3476 | { |
360b7f3c BP |
3477 | struct pci_dev *F3 = node_to_amd_nb(nid)->misc; |
3478 | struct ecc_settings *s = ecc_stngs[nid]; | |
3f37a36b BP |
3479 | struct mem_ctl_info *mci; |
3480 | struct amd64_pvt *pvt; | |
7d6034d3 | 3481 | |
3f37a36b | 3482 | mci = find_mci_by_dev(&F3->dev); |
a4b4bedc BP |
3483 | WARN_ON(!mci); |
3484 | ||
7d6034d3 | 3485 | /* Remove from EDAC CORE tracking list */ |
3f37a36b | 3486 | mci = edac_mc_del_mc(&F3->dev); |
7d6034d3 DT |
3487 | if (!mci) |
3488 | return; | |
3489 | ||
3490 | pvt = mci->pvt_info; | |
3491 | ||
360b7f3c | 3492 | restore_ecc_error_reporting(s, nid, F3); |
7d6034d3 | 3493 | |
360b7f3c | 3494 | free_mc_sibling_devs(pvt); |
7d6034d3 | 3495 | |
360b7f3c BP |
3496 | kfree(ecc_stngs[nid]); |
3497 | ecc_stngs[nid] = NULL; | |
ae7bb7c6 | 3498 | |
7d6034d3 | 3499 | /* Free the EDAC CORE resources */ |
8f68ed97 | 3500 | mci->pvt_info = NULL; |
8f68ed97 BP |
3501 | |
3502 | kfree(pvt); | |
7d6034d3 DT |
3503 | edac_mc_free(mci); |
3504 | } | |
3505 | ||
360b7f3c | 3506 | static void setup_pci_device(void) |
7d6034d3 DT |
3507 | { |
3508 | struct mem_ctl_info *mci; | |
3509 | struct amd64_pvt *pvt; | |
3510 | ||
d1ea71cd | 3511 | if (pci_ctl) |
7d6034d3 DT |
3512 | return; |
3513 | ||
2ec591ac | 3514 | mci = edac_mc_find(0); |
d1ea71cd BP |
3515 | if (!mci) |
3516 | return; | |
7d6034d3 | 3517 | |
d1ea71cd | 3518 | pvt = mci->pvt_info; |
936fc3af YG |
3519 | if (pvt->umc) |
3520 | pci_ctl = edac_pci_create_generic_ctl(&pvt->F0->dev, EDAC_MOD_STR); | |
3521 | else | |
3522 | pci_ctl = edac_pci_create_generic_ctl(&pvt->F2->dev, EDAC_MOD_STR); | |
d1ea71cd BP |
3523 | if (!pci_ctl) { |
3524 | pr_warn("%s(): Unable to create PCI control\n", __func__); | |
3525 | pr_warn("%s(): PCI error report via EDAC not set\n", __func__); | |
7d6034d3 DT |
3526 | } |
3527 | } | |
3528 | ||
d6efab74 YG |
3529 | static const struct x86_cpu_id amd64_cpuids[] = { |
3530 | { X86_VENDOR_AMD, 0xF, X86_MODEL_ANY, X86_FEATURE_ANY, 0 }, | |
3531 | { X86_VENDOR_AMD, 0x10, X86_MODEL_ANY, X86_FEATURE_ANY, 0 }, | |
3532 | { X86_VENDOR_AMD, 0x15, X86_MODEL_ANY, X86_FEATURE_ANY, 0 }, | |
3533 | { X86_VENDOR_AMD, 0x16, X86_MODEL_ANY, X86_FEATURE_ANY, 0 }, | |
95d3af6b | 3534 | { X86_VENDOR_AMD, 0x17, X86_MODEL_ANY, X86_FEATURE_ANY, 0 }, |
c4a3e946 | 3535 | { X86_VENDOR_HYGON, 0x18, X86_MODEL_ANY, X86_FEATURE_ANY, 0 }, |
d6efab74 YG |
3536 | { } |
3537 | }; | |
3538 | MODULE_DEVICE_TABLE(x86cpu, amd64_cpuids); | |
3539 | ||
7d6034d3 DT |
3540 | static int __init amd64_edac_init(void) |
3541 | { | |
301375e7 | 3542 | const char *owner; |
360b7f3c | 3543 | int err = -ENODEV; |
3f37a36b | 3544 | int i; |
7d6034d3 | 3545 | |
301375e7 TK |
3546 | owner = edac_get_owner(); |
3547 | if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR))) | |
3548 | return -EBUSY; | |
3549 | ||
1bd9900b YG |
3550 | if (!x86_match_cpu(amd64_cpuids)) |
3551 | return -ENODEV; | |
3552 | ||
9653a5c7 | 3553 | if (amd_cache_northbridges() < 0) |
1bd9900b | 3554 | return -ENODEV; |
7d6034d3 | 3555 | |
6ba92fea BP |
3556 | opstate_init(); |
3557 | ||
cc4d8860 | 3558 | err = -ENOMEM; |
6396bb22 | 3559 | ecc_stngs = kcalloc(amd_nb_num(), sizeof(ecc_stngs[0]), GFP_KERNEL); |
2ec591ac | 3560 | if (!ecc_stngs) |
a9f0fbe2 | 3561 | goto err_free; |
cc4d8860 | 3562 | |
50542251 | 3563 | msrs = msrs_alloc(); |
56b34b91 | 3564 | if (!msrs) |
360b7f3c | 3565 | goto err_free; |
50542251 | 3566 | |
bdcee774 YG |
3567 | compute_num_umcs(); |
3568 | ||
2287c636 YG |
3569 | for (i = 0; i < amd_nb_num(); i++) { |
3570 | err = probe_one_instance(i); | |
3571 | if (err) { | |
3f37a36b BP |
3572 | /* unwind properly */ |
3573 | while (--i >= 0) | |
3574 | remove_one_instance(i); | |
7d6034d3 | 3575 | |
3f37a36b BP |
3576 | goto err_pci; |
3577 | } | |
2287c636 | 3578 | } |
7d6034d3 | 3579 | |
4688c9b4 YG |
3580 | if (!edac_has_mcs()) { |
3581 | err = -ENODEV; | |
3582 | goto err_pci; | |
3583 | } | |
3584 | ||
234365f5 YG |
3585 | /* register stuff with EDAC MCE */ |
3586 | if (report_gart_errors) | |
3587 | amd_report_gart_errors(true); | |
3588 | ||
3589 | if (boot_cpu_data.x86 >= 0x17) | |
3590 | amd_register_ecc_decoder(decode_umc_error); | |
3591 | else | |
3592 | amd_register_ecc_decoder(decode_bus_error); | |
3593 | ||
360b7f3c | 3594 | setup_pci_device(); |
f5b10c45 TP |
3595 | |
3596 | #ifdef CONFIG_X86_32 | |
3597 | amd64_err("%s on 32-bit is unsupported. USE AT YOUR OWN RISK!\n", EDAC_MOD_STR); | |
3598 | #endif | |
3599 | ||
de0336b3 BP |
3600 | printk(KERN_INFO "AMD64 EDAC driver v%s\n", EDAC_AMD64_VERSION); |
3601 | ||
360b7f3c | 3602 | return 0; |
7d6034d3 | 3603 | |
56b34b91 BP |
3604 | err_pci: |
3605 | msrs_free(msrs); | |
3606 | msrs = NULL; | |
cc4d8860 | 3607 | |
360b7f3c | 3608 | err_free: |
360b7f3c BP |
3609 | kfree(ecc_stngs); |
3610 | ecc_stngs = NULL; | |
3611 | ||
7d6034d3 DT |
3612 | return err; |
3613 | } | |
3614 | ||
3615 | static void __exit amd64_edac_exit(void) | |
3616 | { | |
3f37a36b BP |
3617 | int i; |
3618 | ||
d1ea71cd BP |
3619 | if (pci_ctl) |
3620 | edac_pci_release_generic_ctl(pci_ctl); | |
7d6034d3 | 3621 | |
234365f5 YG |
3622 | /* unregister from EDAC MCE */ |
3623 | amd_report_gart_errors(false); | |
3624 | ||
3625 | if (boot_cpu_data.x86 >= 0x17) | |
3626 | amd_unregister_ecc_decoder(decode_umc_error); | |
3627 | else | |
3628 | amd_unregister_ecc_decoder(decode_bus_error); | |
3629 | ||
3f37a36b BP |
3630 | for (i = 0; i < amd_nb_num(); i++) |
3631 | remove_one_instance(i); | |
50542251 | 3632 | |
ae7bb7c6 BP |
3633 | kfree(ecc_stngs); |
3634 | ecc_stngs = NULL; | |
3635 | ||
50542251 BP |
3636 | msrs_free(msrs); |
3637 | msrs = NULL; | |
7d6034d3 DT |
3638 | } |
3639 | ||
3640 | module_init(amd64_edac_init); | |
3641 | module_exit(amd64_edac_exit); | |
3642 | ||
3643 | MODULE_LICENSE("GPL"); | |
3644 | MODULE_AUTHOR("SoftwareBitMaker: Doug Thompson, " | |
3645 | "Dave Peterson, Thayne Harbaugh"); | |
3646 | MODULE_DESCRIPTION("MC support for AMD64 memory controllers - " | |
3647 | EDAC_AMD64_VERSION); | |
3648 | ||
3649 | module_param(edac_op_state, int, 0444); | |
3650 | MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI"); |