Commit | Line | Data |
---|---|---|
806c35f5 AC |
1 | /* |
2 | * Intel e752x Memory Controller kernel module | |
3 | * (C) 2004 Linux Networx (http://lnxi.com) | |
4 | * This file may be distributed under the terms of the | |
5 | * GNU General Public License. | |
6 | * | |
7 | * See "enum e752x_chips" below for supported chipsets | |
8 | * | |
9 | * Written by Tom Zimmerman | |
10 | * | |
11 | * Contributors: | |
12 | * Thayne Harbaugh at realmsys.com (?) | |
13 | * Wang Zhenyu at intel.com | |
14 | * Dave Jiang at mvista.com | |
15 | * | |
da9bb1d2 | 16 | * $Id: edac_e752x.c,v 1.5.2.11 2005/10/05 00:43:44 dsp_llnl Exp $ |
806c35f5 AC |
17 | * |
18 | */ | |
19 | ||
806c35f5 AC |
20 | #include <linux/module.h> |
21 | #include <linux/init.h> | |
806c35f5 AC |
22 | #include <linux/pci.h> |
23 | #include <linux/pci_ids.h> | |
806c35f5 | 24 | #include <linux/slab.h> |
806c35f5 AC |
25 | #include "edac_mc.h" |
26 | ||
37f04581 DT |
27 | #define E752X_REVISION " Ver: 2.0.0 " __DATE__ |
28 | ||
96941026 | 29 | static int force_function_unhide; |
30 | ||
537fba28 | 31 | #define e752x_printk(level, fmt, arg...) \ |
e7ecd891 | 32 | edac_printk(level, "e752x", fmt, ##arg) |
537fba28 DP |
33 | |
34 | #define e752x_mc_printk(mci, level, fmt, arg...) \ | |
e7ecd891 | 35 | edac_mc_chipset_printk(mci, level, "e752x", fmt, ##arg) |
537fba28 | 36 | |
806c35f5 AC |
37 | #ifndef PCI_DEVICE_ID_INTEL_7520_0 |
38 | #define PCI_DEVICE_ID_INTEL_7520_0 0x3590 | |
39 | #endif /* PCI_DEVICE_ID_INTEL_7520_0 */ | |
40 | ||
41 | #ifndef PCI_DEVICE_ID_INTEL_7520_1_ERR | |
42 | #define PCI_DEVICE_ID_INTEL_7520_1_ERR 0x3591 | |
43 | #endif /* PCI_DEVICE_ID_INTEL_7520_1_ERR */ | |
44 | ||
45 | #ifndef PCI_DEVICE_ID_INTEL_7525_0 | |
46 | #define PCI_DEVICE_ID_INTEL_7525_0 0x359E | |
47 | #endif /* PCI_DEVICE_ID_INTEL_7525_0 */ | |
48 | ||
49 | #ifndef PCI_DEVICE_ID_INTEL_7525_1_ERR | |
50 | #define PCI_DEVICE_ID_INTEL_7525_1_ERR 0x3593 | |
51 | #endif /* PCI_DEVICE_ID_INTEL_7525_1_ERR */ | |
52 | ||
53 | #ifndef PCI_DEVICE_ID_INTEL_7320_0 | |
54 | #define PCI_DEVICE_ID_INTEL_7320_0 0x3592 | |
55 | #endif /* PCI_DEVICE_ID_INTEL_7320_0 */ | |
56 | ||
57 | #ifndef PCI_DEVICE_ID_INTEL_7320_1_ERR | |
58 | #define PCI_DEVICE_ID_INTEL_7320_1_ERR 0x3593 | |
59 | #endif /* PCI_DEVICE_ID_INTEL_7320_1_ERR */ | |
60 | ||
61 | #define E752X_NR_CSROWS 8 /* number of csrows */ | |
62 | ||
806c35f5 AC |
63 | /* E752X register addresses - device 0 function 0 */ |
64 | #define E752X_DRB 0x60 /* DRAM row boundary register (8b) */ | |
65 | #define E752X_DRA 0x70 /* DRAM row attribute register (8b) */ | |
66 | /* | |
67 | * 31:30 Device width row 7 | |
68 | * 01=x8 10=x4 11=x8 DDR2 | |
69 | * 27:26 Device width row 6 | |
70 | * 23:22 Device width row 5 | |
71 | * 19:20 Device width row 4 | |
72 | * 15:14 Device width row 3 | |
73 | * 11:10 Device width row 2 | |
74 | * 7:6 Device width row 1 | |
75 | * 3:2 Device width row 0 | |
76 | */ | |
77 | #define E752X_DRC 0x7C /* DRAM controller mode reg (32b) */ | |
78 | /* FIXME:IS THIS RIGHT? */ | |
79 | /* | |
80 | * 22 Number channels 0=1,1=2 | |
81 | * 19:18 DRB Granularity 32/64MB | |
82 | */ | |
83 | #define E752X_DRM 0x80 /* Dimm mapping register */ | |
84 | #define E752X_DDRCSR 0x9A /* DDR control and status reg (16b) */ | |
85 | /* | |
86 | * 14:12 1 single A, 2 single B, 3 dual | |
87 | */ | |
88 | #define E752X_TOLM 0xC4 /* DRAM top of low memory reg (16b) */ | |
89 | #define E752X_REMAPBASE 0xC6 /* DRAM remap base address reg (16b) */ | |
90 | #define E752X_REMAPLIMIT 0xC8 /* DRAM remap limit address reg (16b) */ | |
91 | #define E752X_REMAPOFFSET 0xCA /* DRAM remap limit offset reg (16b) */ | |
92 | ||
93 | /* E752X register addresses - device 0 function 1 */ | |
94 | #define E752X_FERR_GLOBAL 0x40 /* Global first error register (32b) */ | |
95 | #define E752X_NERR_GLOBAL 0x44 /* Global next error register (32b) */ | |
96 | #define E752X_HI_FERR 0x50 /* Hub interface first error reg (8b) */ | |
97 | #define E752X_HI_NERR 0x52 /* Hub interface next error reg (8b) */ | |
98 | #define E752X_HI_ERRMASK 0x54 /* Hub interface error mask reg (8b) */ | |
99 | #define E752X_HI_SMICMD 0x5A /* Hub interface SMI command reg (8b) */ | |
100 | #define E752X_SYSBUS_FERR 0x60 /* System buss first error reg (16b) */ | |
101 | #define E752X_SYSBUS_NERR 0x62 /* System buss next error reg (16b) */ | |
102 | #define E752X_SYSBUS_ERRMASK 0x64 /* System buss error mask reg (16b) */ | |
103 | #define E752X_SYSBUS_SMICMD 0x6A /* System buss SMI command reg (16b) */ | |
104 | #define E752X_BUF_FERR 0x70 /* Memory buffer first error reg (8b) */ | |
105 | #define E752X_BUF_NERR 0x72 /* Memory buffer next error reg (8b) */ | |
106 | #define E752X_BUF_ERRMASK 0x74 /* Memory buffer error mask reg (8b) */ | |
107 | #define E752X_BUF_SMICMD 0x7A /* Memory buffer SMI command reg (8b) */ | |
108 | #define E752X_DRAM_FERR 0x80 /* DRAM first error register (16b) */ | |
109 | #define E752X_DRAM_NERR 0x82 /* DRAM next error register (16b) */ | |
110 | #define E752X_DRAM_ERRMASK 0x84 /* DRAM error mask register (8b) */ | |
111 | #define E752X_DRAM_SMICMD 0x8A /* DRAM SMI command register (8b) */ | |
112 | #define E752X_DRAM_RETR_ADD 0xAC /* DRAM Retry address register (32b) */ | |
113 | #define E752X_DRAM_SEC1_ADD 0xA0 /* DRAM first correctable memory */ | |
114 | /* error address register (32b) */ | |
115 | /* | |
116 | * 31 Reserved | |
117 | * 30:2 CE address (64 byte block 34:6) | |
118 | * 1 Reserved | |
119 | * 0 HiLoCS | |
120 | */ | |
121 | #define E752X_DRAM_SEC2_ADD 0xC8 /* DRAM first correctable memory */ | |
122 | /* error address register (32b) */ | |
123 | /* | |
124 | * 31 Reserved | |
125 | * 30:2 CE address (64 byte block 34:6) | |
126 | * 1 Reserved | |
127 | * 0 HiLoCS | |
128 | */ | |
129 | #define E752X_DRAM_DED_ADD 0xA4 /* DRAM first uncorrectable memory */ | |
130 | /* error address register (32b) */ | |
131 | /* | |
132 | * 31 Reserved | |
133 | * 30:2 CE address (64 byte block 34:6) | |
134 | * 1 Reserved | |
135 | * 0 HiLoCS | |
136 | */ | |
137 | #define E752X_DRAM_SCRB_ADD 0xA8 /* DRAM first uncorrectable scrub memory */ | |
138 | /* error address register (32b) */ | |
139 | /* | |
140 | * 31 Reserved | |
141 | * 30:2 CE address (64 byte block 34:6) | |
142 | * 1 Reserved | |
143 | * 0 HiLoCS | |
144 | */ | |
145 | #define E752X_DRAM_SEC1_SYNDROME 0xC4 /* DRAM first correctable memory */ | |
146 | /* error syndrome register (16b) */ | |
147 | #define E752X_DRAM_SEC2_SYNDROME 0xC6 /* DRAM second correctable memory */ | |
148 | /* error syndrome register (16b) */ | |
149 | #define E752X_DEVPRES1 0xF4 /* Device Present 1 register (8b) */ | |
150 | ||
151 | /* ICH5R register addresses - device 30 function 0 */ | |
152 | #define ICH5R_PCI_STAT 0x06 /* PCI status register (16b) */ | |
153 | #define ICH5R_PCI_2ND_STAT 0x1E /* PCI status secondary reg (16b) */ | |
154 | #define ICH5R_PCI_BRIDGE_CTL 0x3E /* PCI bridge control register (16b) */ | |
155 | ||
156 | enum e752x_chips { | |
157 | E7520 = 0, | |
158 | E7525 = 1, | |
159 | E7320 = 2 | |
160 | }; | |
161 | ||
806c35f5 AC |
162 | struct e752x_pvt { |
163 | struct pci_dev *bridge_ck; | |
164 | struct pci_dev *dev_d0f0; | |
165 | struct pci_dev *dev_d0f1; | |
166 | u32 tolm; | |
167 | u32 remapbase; | |
168 | u32 remaplimit; | |
169 | int mc_symmetric; | |
170 | u8 map[8]; | |
171 | int map_type; | |
172 | const struct e752x_dev_info *dev_info; | |
173 | }; | |
174 | ||
806c35f5 AC |
175 | struct e752x_dev_info { |
176 | u16 err_dev; | |
3847bccc | 177 | u16 ctl_dev; |
806c35f5 AC |
178 | const char *ctl_name; |
179 | }; | |
180 | ||
181 | struct e752x_error_info { | |
182 | u32 ferr_global; | |
183 | u32 nerr_global; | |
184 | u8 hi_ferr; | |
185 | u8 hi_nerr; | |
186 | u16 sysbus_ferr; | |
187 | u16 sysbus_nerr; | |
188 | u8 buf_ferr; | |
189 | u8 buf_nerr; | |
190 | u16 dram_ferr; | |
191 | u16 dram_nerr; | |
192 | u32 dram_sec1_add; | |
193 | u32 dram_sec2_add; | |
194 | u16 dram_sec1_syndrome; | |
195 | u16 dram_sec2_syndrome; | |
196 | u32 dram_ded_add; | |
197 | u32 dram_scrb_add; | |
198 | u32 dram_retr_add; | |
199 | }; | |
200 | ||
201 | static const struct e752x_dev_info e752x_devs[] = { | |
202 | [E7520] = { | |
e7ecd891 DP |
203 | .err_dev = PCI_DEVICE_ID_INTEL_7520_1_ERR, |
204 | .ctl_dev = PCI_DEVICE_ID_INTEL_7520_0, | |
205 | .ctl_name = "E7520" | |
206 | }, | |
806c35f5 | 207 | [E7525] = { |
e7ecd891 DP |
208 | .err_dev = PCI_DEVICE_ID_INTEL_7525_1_ERR, |
209 | .ctl_dev = PCI_DEVICE_ID_INTEL_7525_0, | |
210 | .ctl_name = "E7525" | |
211 | }, | |
806c35f5 | 212 | [E7320] = { |
e7ecd891 DP |
213 | .err_dev = PCI_DEVICE_ID_INTEL_7320_1_ERR, |
214 | .ctl_dev = PCI_DEVICE_ID_INTEL_7320_0, | |
215 | .ctl_name = "E7320" | |
216 | }, | |
806c35f5 AC |
217 | }; |
218 | ||
806c35f5 | 219 | static unsigned long ctl_page_to_phys(struct mem_ctl_info *mci, |
e7ecd891 | 220 | unsigned long page) |
806c35f5 AC |
221 | { |
222 | u32 remap; | |
223 | struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info; | |
224 | ||
537fba28 | 225 | debugf3("%s()\n", __func__); |
806c35f5 AC |
226 | |
227 | if (page < pvt->tolm) | |
228 | return page; | |
e7ecd891 | 229 | |
806c35f5 AC |
230 | if ((page >= 0x100000) && (page < pvt->remapbase)) |
231 | return page; | |
e7ecd891 | 232 | |
806c35f5 | 233 | remap = (page - pvt->tolm) + pvt->remapbase; |
e7ecd891 | 234 | |
806c35f5 AC |
235 | if (remap < pvt->remaplimit) |
236 | return remap; | |
e7ecd891 | 237 | |
537fba28 | 238 | e752x_printk(KERN_ERR, "Invalid page %lx - out of range\n", page); |
806c35f5 AC |
239 | return pvt->tolm - 1; |
240 | } | |
241 | ||
242 | static void do_process_ce(struct mem_ctl_info *mci, u16 error_one, | |
e7ecd891 | 243 | u32 sec1_add, u16 sec1_syndrome) |
806c35f5 AC |
244 | { |
245 | u32 page; | |
246 | int row; | |
247 | int channel; | |
248 | int i; | |
249 | struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info; | |
250 | ||
537fba28 | 251 | debugf3("%s()\n", __func__); |
806c35f5 AC |
252 | |
253 | /* convert the addr to 4k page */ | |
254 | page = sec1_add >> (PAGE_SHIFT - 4); | |
255 | ||
256 | /* FIXME - check for -1 */ | |
257 | if (pvt->mc_symmetric) { | |
258 | /* chip select are bits 14 & 13 */ | |
259 | row = ((page >> 1) & 3); | |
537fba28 | 260 | e752x_printk(KERN_WARNING, |
e7ecd891 DP |
261 | "Test row %d Table %d %d %d %d %d %d %d %d\n", row, |
262 | pvt->map[0], pvt->map[1], pvt->map[2], pvt->map[3], | |
263 | pvt->map[4], pvt->map[5], pvt->map[6], pvt->map[7]); | |
806c35f5 AC |
264 | |
265 | /* test for channel remapping */ | |
266 | for (i = 0; i < 8; i++) { | |
267 | if (pvt->map[i] == row) | |
268 | break; | |
269 | } | |
e7ecd891 | 270 | |
537fba28 | 271 | e752x_printk(KERN_WARNING, "Test computed row %d\n", i); |
e7ecd891 | 272 | |
806c35f5 AC |
273 | if (i < 8) |
274 | row = i; | |
275 | else | |
537fba28 | 276 | e752x_mc_printk(mci, KERN_WARNING, |
e7ecd891 | 277 | "row %d not found in remap table\n", row); |
806c35f5 AC |
278 | } else |
279 | row = edac_mc_find_csrow_by_page(mci, page); | |
e7ecd891 | 280 | |
806c35f5 AC |
281 | /* 0 = channel A, 1 = channel B */ |
282 | channel = !(error_one & 1); | |
283 | ||
284 | if (!pvt->map_type) | |
285 | row = 7 - row; | |
e7ecd891 | 286 | |
806c35f5 | 287 | edac_mc_handle_ce(mci, page, 0, sec1_syndrome, row, channel, |
e7ecd891 | 288 | "e752x CE"); |
806c35f5 AC |
289 | } |
290 | ||
806c35f5 AC |
291 | static inline void process_ce(struct mem_ctl_info *mci, u16 error_one, |
292 | u32 sec1_add, u16 sec1_syndrome, int *error_found, | |
293 | int handle_error) | |
294 | { | |
295 | *error_found = 1; | |
296 | ||
297 | if (handle_error) | |
298 | do_process_ce(mci, error_one, sec1_add, sec1_syndrome); | |
299 | } | |
300 | ||
e7ecd891 DP |
301 | static void do_process_ue(struct mem_ctl_info *mci, u16 error_one, |
302 | u32 ded_add, u32 scrb_add) | |
806c35f5 AC |
303 | { |
304 | u32 error_2b, block_page; | |
305 | int row; | |
306 | struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info; | |
307 | ||
537fba28 | 308 | debugf3("%s()\n", __func__); |
806c35f5 AC |
309 | |
310 | if (error_one & 0x0202) { | |
311 | error_2b = ded_add; | |
e7ecd891 | 312 | |
806c35f5 AC |
313 | /* convert to 4k address */ |
314 | block_page = error_2b >> (PAGE_SHIFT - 4); | |
e7ecd891 | 315 | |
806c35f5 | 316 | row = pvt->mc_symmetric ? |
e7ecd891 DP |
317 | /* chip select are bits 14 & 13 */ |
318 | ((block_page >> 1) & 3) : | |
319 | edac_mc_find_csrow_by_page(mci, block_page); | |
320 | ||
806c35f5 | 321 | edac_mc_handle_ue(mci, block_page, 0, row, |
e7ecd891 | 322 | "e752x UE from Read"); |
806c35f5 AC |
323 | } |
324 | if (error_one & 0x0404) { | |
325 | error_2b = scrb_add; | |
e7ecd891 | 326 | |
806c35f5 AC |
327 | /* convert to 4k address */ |
328 | block_page = error_2b >> (PAGE_SHIFT - 4); | |
e7ecd891 | 329 | |
806c35f5 | 330 | row = pvt->mc_symmetric ? |
e7ecd891 DP |
331 | /* chip select are bits 14 & 13 */ |
332 | ((block_page >> 1) & 3) : | |
333 | edac_mc_find_csrow_by_page(mci, block_page); | |
334 | ||
806c35f5 | 335 | edac_mc_handle_ue(mci, block_page, 0, row, |
e7ecd891 | 336 | "e752x UE from Scruber"); |
806c35f5 AC |
337 | } |
338 | } | |
339 | ||
340 | static inline void process_ue(struct mem_ctl_info *mci, u16 error_one, | |
341 | u32 ded_add, u32 scrb_add, int *error_found, int handle_error) | |
342 | { | |
343 | *error_found = 1; | |
344 | ||
345 | if (handle_error) | |
346 | do_process_ue(mci, error_one, ded_add, scrb_add); | |
347 | } | |
348 | ||
349 | static inline void process_ue_no_info_wr(struct mem_ctl_info *mci, | |
350 | int *error_found, int handle_error) | |
351 | { | |
352 | *error_found = 1; | |
353 | ||
354 | if (!handle_error) | |
355 | return; | |
356 | ||
537fba28 | 357 | debugf3("%s()\n", __func__); |
806c35f5 AC |
358 | edac_mc_handle_ue_no_info(mci, "e752x UE log memory write"); |
359 | } | |
360 | ||
361 | static void do_process_ded_retry(struct mem_ctl_info *mci, u16 error, | |
362 | u32 retry_add) | |
363 | { | |
364 | u32 error_1b, page; | |
365 | int row; | |
366 | struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info; | |
367 | ||
368 | error_1b = retry_add; | |
e7ecd891 | 369 | page = error_1b >> (PAGE_SHIFT - 4); /* convert the addr to 4k page */ |
806c35f5 | 370 | row = pvt->mc_symmetric ? |
e7ecd891 DP |
371 | ((page >> 1) & 3) : /* chip select are bits 14 & 13 */ |
372 | edac_mc_find_csrow_by_page(mci, page); | |
537fba28 | 373 | e752x_mc_printk(mci, KERN_WARNING, |
e7ecd891 DP |
374 | "CE page 0x%lx, row %d : Memory read retry\n", |
375 | (long unsigned int) page, row); | |
806c35f5 AC |
376 | } |
377 | ||
378 | static inline void process_ded_retry(struct mem_ctl_info *mci, u16 error, | |
379 | u32 retry_add, int *error_found, int handle_error) | |
380 | { | |
381 | *error_found = 1; | |
382 | ||
383 | if (handle_error) | |
384 | do_process_ded_retry(mci, error, retry_add); | |
385 | } | |
386 | ||
387 | static inline void process_threshold_ce(struct mem_ctl_info *mci, u16 error, | |
388 | int *error_found, int handle_error) | |
389 | { | |
390 | *error_found = 1; | |
391 | ||
392 | if (handle_error) | |
537fba28 | 393 | e752x_mc_printk(mci, KERN_WARNING, "Memory threshold CE\n"); |
806c35f5 AC |
394 | } |
395 | ||
da9bb1d2 | 396 | static char *global_message[11] = { |
806c35f5 AC |
397 | "PCI Express C1", "PCI Express C", "PCI Express B1", |
398 | "PCI Express B", "PCI Express A1", "PCI Express A", | |
399 | "DMA Controler", "HUB Interface", "System Bus", | |
400 | "DRAM Controler", "Internal Buffer" | |
401 | }; | |
402 | ||
da9bb1d2 | 403 | static char *fatal_message[2] = { "Non-Fatal ", "Fatal " }; |
806c35f5 AC |
404 | |
405 | static void do_global_error(int fatal, u32 errors) | |
406 | { | |
407 | int i; | |
408 | ||
409 | for (i = 0; i < 11; i++) { | |
410 | if (errors & (1 << i)) | |
537fba28 | 411 | e752x_printk(KERN_WARNING, "%sError %s\n", |
e7ecd891 | 412 | fatal_message[fatal], global_message[i]); |
806c35f5 AC |
413 | } |
414 | } | |
415 | ||
416 | static inline void global_error(int fatal, u32 errors, int *error_found, | |
417 | int handle_error) | |
418 | { | |
419 | *error_found = 1; | |
420 | ||
421 | if (handle_error) | |
422 | do_global_error(fatal, errors); | |
423 | } | |
424 | ||
da9bb1d2 | 425 | static char *hub_message[7] = { |
806c35f5 AC |
426 | "HI Address or Command Parity", "HI Illegal Access", |
427 | "HI Internal Parity", "Out of Range Access", | |
428 | "HI Data Parity", "Enhanced Config Access", | |
429 | "Hub Interface Target Abort" | |
430 | }; | |
431 | ||
432 | static void do_hub_error(int fatal, u8 errors) | |
433 | { | |
434 | int i; | |
435 | ||
436 | for (i = 0; i < 7; i++) { | |
437 | if (errors & (1 << i)) | |
537fba28 | 438 | e752x_printk(KERN_WARNING, "%sError %s\n", |
e7ecd891 | 439 | fatal_message[fatal], hub_message[i]); |
806c35f5 AC |
440 | } |
441 | } | |
442 | ||
443 | static inline void hub_error(int fatal, u8 errors, int *error_found, | |
444 | int handle_error) | |
445 | { | |
446 | *error_found = 1; | |
447 | ||
448 | if (handle_error) | |
449 | do_hub_error(fatal, errors); | |
450 | } | |
451 | ||
da9bb1d2 | 452 | static char *membuf_message[4] = { |
806c35f5 AC |
453 | "Internal PMWB to DRAM parity", |
454 | "Internal PMWB to System Bus Parity", | |
455 | "Internal System Bus or IO to PMWB Parity", | |
456 | "Internal DRAM to PMWB Parity" | |
457 | }; | |
458 | ||
459 | static void do_membuf_error(u8 errors) | |
460 | { | |
461 | int i; | |
462 | ||
463 | for (i = 0; i < 4; i++) { | |
464 | if (errors & (1 << i)) | |
537fba28 | 465 | e752x_printk(KERN_WARNING, "Non-Fatal Error %s\n", |
e7ecd891 | 466 | membuf_message[i]); |
806c35f5 AC |
467 | } |
468 | } | |
469 | ||
470 | static inline void membuf_error(u8 errors, int *error_found, int handle_error) | |
471 | { | |
472 | *error_found = 1; | |
473 | ||
474 | if (handle_error) | |
475 | do_membuf_error(errors); | |
476 | } | |
477 | ||
e009356f | 478 | static char *sysbus_message[10] = { |
806c35f5 AC |
479 | "Addr or Request Parity", |
480 | "Data Strobe Glitch", | |
481 | "Addr Strobe Glitch", | |
482 | "Data Parity", | |
483 | "Addr Above TOM", | |
484 | "Non DRAM Lock Error", | |
485 | "MCERR", "BINIT", | |
486 | "Memory Parity", | |
487 | "IO Subsystem Parity" | |
488 | }; | |
489 | ||
490 | static void do_sysbus_error(int fatal, u32 errors) | |
491 | { | |
492 | int i; | |
493 | ||
494 | for (i = 0; i < 10; i++) { | |
495 | if (errors & (1 << i)) | |
537fba28 | 496 | e752x_printk(KERN_WARNING, "%sError System Bus %s\n", |
e009356f | 497 | fatal_message[fatal], sysbus_message[i]); |
806c35f5 AC |
498 | } |
499 | } | |
500 | ||
501 | static inline void sysbus_error(int fatal, u32 errors, int *error_found, | |
502 | int handle_error) | |
503 | { | |
504 | *error_found = 1; | |
505 | ||
506 | if (handle_error) | |
507 | do_sysbus_error(fatal, errors); | |
508 | } | |
509 | ||
e7ecd891 | 510 | static void e752x_check_hub_interface(struct e752x_error_info *info, |
806c35f5 AC |
511 | int *error_found, int handle_error) |
512 | { | |
513 | u8 stat8; | |
514 | ||
515 | //pci_read_config_byte(dev,E752X_HI_FERR,&stat8); | |
e7ecd891 | 516 | |
806c35f5 | 517 | stat8 = info->hi_ferr; |
e7ecd891 | 518 | |
806c35f5 AC |
519 | if(stat8 & 0x7f) { /* Error, so process */ |
520 | stat8 &= 0x7f; | |
e7ecd891 | 521 | |
806c35f5 AC |
522 | if(stat8 & 0x2b) |
523 | hub_error(1, stat8 & 0x2b, error_found, handle_error); | |
e7ecd891 | 524 | |
806c35f5 AC |
525 | if(stat8 & 0x54) |
526 | hub_error(0, stat8 & 0x54, error_found, handle_error); | |
527 | } | |
e7ecd891 | 528 | |
806c35f5 | 529 | //pci_read_config_byte(dev,E752X_HI_NERR,&stat8); |
e7ecd891 | 530 | |
806c35f5 | 531 | stat8 = info->hi_nerr; |
e7ecd891 | 532 | |
806c35f5 AC |
533 | if(stat8 & 0x7f) { /* Error, so process */ |
534 | stat8 &= 0x7f; | |
e7ecd891 | 535 | |
806c35f5 AC |
536 | if (stat8 & 0x2b) |
537 | hub_error(1, stat8 & 0x2b, error_found, handle_error); | |
e7ecd891 | 538 | |
806c35f5 AC |
539 | if(stat8 & 0x54) |
540 | hub_error(0, stat8 & 0x54, error_found, handle_error); | |
541 | } | |
542 | } | |
543 | ||
e7ecd891 DP |
544 | static void e752x_check_sysbus(struct e752x_error_info *info, |
545 | int *error_found, int handle_error) | |
806c35f5 AC |
546 | { |
547 | u32 stat32, error32; | |
548 | ||
549 | //pci_read_config_dword(dev,E752X_SYSBUS_FERR,&stat32); | |
550 | stat32 = info->sysbus_ferr + (info->sysbus_nerr << 16); | |
551 | ||
552 | if (stat32 == 0) | |
553 | return; /* no errors */ | |
554 | ||
555 | error32 = (stat32 >> 16) & 0x3ff; | |
556 | stat32 = stat32 & 0x3ff; | |
e7ecd891 | 557 | |
806c35f5 AC |
558 | if(stat32 & 0x083) |
559 | sysbus_error(1, stat32 & 0x083, error_found, handle_error); | |
e7ecd891 | 560 | |
806c35f5 AC |
561 | if(stat32 & 0x37c) |
562 | sysbus_error(0, stat32 & 0x37c, error_found, handle_error); | |
e7ecd891 | 563 | |
806c35f5 AC |
564 | if(error32 & 0x083) |
565 | sysbus_error(1, error32 & 0x083, error_found, handle_error); | |
e7ecd891 | 566 | |
806c35f5 AC |
567 | if(error32 & 0x37c) |
568 | sysbus_error(0, error32 & 0x37c, error_found, handle_error); | |
569 | } | |
570 | ||
e7ecd891 DP |
571 | static void e752x_check_membuf (struct e752x_error_info *info, |
572 | int *error_found, int handle_error) | |
806c35f5 AC |
573 | { |
574 | u8 stat8; | |
575 | ||
576 | stat8 = info->buf_ferr; | |
e7ecd891 | 577 | |
806c35f5 AC |
578 | if (stat8 & 0x0f) { /* Error, so process */ |
579 | stat8 &= 0x0f; | |
580 | membuf_error(stat8, error_found, handle_error); | |
581 | } | |
e7ecd891 | 582 | |
806c35f5 | 583 | stat8 = info->buf_nerr; |
e7ecd891 | 584 | |
806c35f5 AC |
585 | if (stat8 & 0x0f) { /* Error, so process */ |
586 | stat8 &= 0x0f; | |
587 | membuf_error(stat8, error_found, handle_error); | |
588 | } | |
589 | } | |
590 | ||
591 | static void e752x_check_dram (struct mem_ctl_info *mci, | |
e7ecd891 DP |
592 | struct e752x_error_info *info, int *error_found, |
593 | int handle_error) | |
806c35f5 AC |
594 | { |
595 | u16 error_one, error_next; | |
596 | ||
597 | error_one = info->dram_ferr; | |
598 | error_next = info->dram_nerr; | |
599 | ||
600 | /* decode and report errors */ | |
601 | if(error_one & 0x0101) /* check first error correctable */ | |
602 | process_ce(mci, error_one, info->dram_sec1_add, | |
603 | info->dram_sec1_syndrome, error_found, | |
604 | handle_error); | |
605 | ||
606 | if(error_next & 0x0101) /* check next error correctable */ | |
607 | process_ce(mci, error_next, info->dram_sec2_add, | |
608 | info->dram_sec2_syndrome, error_found, | |
609 | handle_error); | |
610 | ||
611 | if(error_one & 0x4040) | |
612 | process_ue_no_info_wr(mci, error_found, handle_error); | |
613 | ||
614 | if(error_next & 0x4040) | |
615 | process_ue_no_info_wr(mci, error_found, handle_error); | |
616 | ||
617 | if(error_one & 0x2020) | |
618 | process_ded_retry(mci, error_one, info->dram_retr_add, | |
619 | error_found, handle_error); | |
620 | ||
621 | if(error_next & 0x2020) | |
622 | process_ded_retry(mci, error_next, info->dram_retr_add, | |
623 | error_found, handle_error); | |
624 | ||
625 | if(error_one & 0x0808) | |
626 | process_threshold_ce(mci, error_one, error_found, | |
627 | handle_error); | |
628 | ||
629 | if(error_next & 0x0808) | |
630 | process_threshold_ce(mci, error_next, error_found, | |
631 | handle_error); | |
632 | ||
633 | if(error_one & 0x0606) | |
634 | process_ue(mci, error_one, info->dram_ded_add, | |
635 | info->dram_scrb_add, error_found, handle_error); | |
636 | ||
637 | if(error_next & 0x0606) | |
638 | process_ue(mci, error_next, info->dram_ded_add, | |
639 | info->dram_scrb_add, error_found, handle_error); | |
640 | } | |
641 | ||
642 | static void e752x_get_error_info (struct mem_ctl_info *mci, | |
e7ecd891 | 643 | struct e752x_error_info *info) |
806c35f5 AC |
644 | { |
645 | struct pci_dev *dev; | |
646 | struct e752x_pvt *pvt; | |
647 | ||
648 | memset(info, 0, sizeof(*info)); | |
649 | pvt = (struct e752x_pvt *) mci->pvt_info; | |
650 | dev = pvt->dev_d0f1; | |
806c35f5 AC |
651 | pci_read_config_dword(dev, E752X_FERR_GLOBAL, &info->ferr_global); |
652 | ||
653 | if (info->ferr_global) { | |
654 | pci_read_config_byte(dev, E752X_HI_FERR, &info->hi_ferr); | |
655 | pci_read_config_word(dev, E752X_SYSBUS_FERR, | |
656 | &info->sysbus_ferr); | |
657 | pci_read_config_byte(dev, E752X_BUF_FERR, &info->buf_ferr); | |
658 | pci_read_config_word(dev, E752X_DRAM_FERR, | |
659 | &info->dram_ferr); | |
660 | pci_read_config_dword(dev, E752X_DRAM_SEC1_ADD, | |
661 | &info->dram_sec1_add); | |
662 | pci_read_config_word(dev, E752X_DRAM_SEC1_SYNDROME, | |
663 | &info->dram_sec1_syndrome); | |
664 | pci_read_config_dword(dev, E752X_DRAM_DED_ADD, | |
665 | &info->dram_ded_add); | |
666 | pci_read_config_dword(dev, E752X_DRAM_SCRB_ADD, | |
667 | &info->dram_scrb_add); | |
668 | pci_read_config_dword(dev, E752X_DRAM_RETR_ADD, | |
669 | &info->dram_retr_add); | |
670 | ||
671 | if (info->hi_ferr & 0x7f) | |
672 | pci_write_config_byte(dev, E752X_HI_FERR, | |
673 | info->hi_ferr); | |
674 | ||
675 | if (info->sysbus_ferr) | |
676 | pci_write_config_word(dev, E752X_SYSBUS_FERR, | |
677 | info->sysbus_ferr); | |
678 | ||
679 | if (info->buf_ferr & 0x0f) | |
680 | pci_write_config_byte(dev, E752X_BUF_FERR, | |
681 | info->buf_ferr); | |
682 | ||
683 | if (info->dram_ferr) | |
684 | pci_write_bits16(pvt->bridge_ck, E752X_DRAM_FERR, | |
685 | info->dram_ferr, info->dram_ferr); | |
686 | ||
687 | pci_write_config_dword(dev, E752X_FERR_GLOBAL, | |
688 | info->ferr_global); | |
689 | } | |
690 | ||
691 | pci_read_config_dword(dev, E752X_NERR_GLOBAL, &info->nerr_global); | |
692 | ||
693 | if (info->nerr_global) { | |
694 | pci_read_config_byte(dev, E752X_HI_NERR, &info->hi_nerr); | |
695 | pci_read_config_word(dev, E752X_SYSBUS_NERR, | |
696 | &info->sysbus_nerr); | |
697 | pci_read_config_byte(dev, E752X_BUF_NERR, &info->buf_nerr); | |
698 | pci_read_config_word(dev, E752X_DRAM_NERR, | |
699 | &info->dram_nerr); | |
700 | pci_read_config_dword(dev, E752X_DRAM_SEC2_ADD, | |
701 | &info->dram_sec2_add); | |
702 | pci_read_config_word(dev, E752X_DRAM_SEC2_SYNDROME, | |
703 | &info->dram_sec2_syndrome); | |
704 | ||
705 | if (info->hi_nerr & 0x7f) | |
706 | pci_write_config_byte(dev, E752X_HI_NERR, | |
707 | info->hi_nerr); | |
708 | ||
709 | if (info->sysbus_nerr) | |
710 | pci_write_config_word(dev, E752X_SYSBUS_NERR, | |
711 | info->sysbus_nerr); | |
712 | ||
713 | if (info->buf_nerr & 0x0f) | |
714 | pci_write_config_byte(dev, E752X_BUF_NERR, | |
715 | info->buf_nerr); | |
716 | ||
717 | if (info->dram_nerr) | |
718 | pci_write_bits16(pvt->bridge_ck, E752X_DRAM_NERR, | |
719 | info->dram_nerr, info->dram_nerr); | |
720 | ||
721 | pci_write_config_dword(dev, E752X_NERR_GLOBAL, | |
722 | info->nerr_global); | |
723 | } | |
724 | } | |
725 | ||
726 | static int e752x_process_error_info (struct mem_ctl_info *mci, | |
727 | struct e752x_error_info *info, int handle_errors) | |
728 | { | |
729 | u32 error32, stat32; | |
730 | int error_found; | |
731 | ||
732 | error_found = 0; | |
733 | error32 = (info->ferr_global >> 18) & 0x3ff; | |
734 | stat32 = (info->ferr_global >> 4) & 0x7ff; | |
735 | ||
736 | if (error32) | |
737 | global_error(1, error32, &error_found, handle_errors); | |
738 | ||
739 | if (stat32) | |
740 | global_error(0, stat32, &error_found, handle_errors); | |
741 | ||
742 | error32 = (info->nerr_global >> 18) & 0x3ff; | |
743 | stat32 = (info->nerr_global >> 4) & 0x7ff; | |
744 | ||
745 | if (error32) | |
746 | global_error(1, error32, &error_found, handle_errors); | |
747 | ||
748 | if (stat32) | |
749 | global_error(0, stat32, &error_found, handle_errors); | |
750 | ||
751 | e752x_check_hub_interface(info, &error_found, handle_errors); | |
752 | e752x_check_sysbus(info, &error_found, handle_errors); | |
753 | e752x_check_membuf(info, &error_found, handle_errors); | |
754 | e752x_check_dram(mci, info, &error_found, handle_errors); | |
755 | return error_found; | |
756 | } | |
757 | ||
758 | static void e752x_check(struct mem_ctl_info *mci) | |
759 | { | |
760 | struct e752x_error_info info; | |
e7ecd891 | 761 | |
537fba28 | 762 | debugf3("%s()\n", __func__); |
806c35f5 AC |
763 | e752x_get_error_info(mci, &info); |
764 | e752x_process_error_info(mci, &info, 1); | |
765 | } | |
766 | ||
13189525 DT |
767 | /* Return 1 if dual channel mode is active. Else return 0. */ |
768 | static inline int dual_channel_active(u16 ddrcsr) | |
769 | { | |
770 | return (((ddrcsr >> 12) & 3) == 3); | |
771 | } | |
772 | ||
773 | static void e752x_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev, | |
774 | u16 ddrcsr) | |
775 | { | |
776 | struct csrow_info *csrow; | |
777 | unsigned long last_cumul_size; | |
778 | int index, mem_dev, drc_chan; | |
779 | int drc_drbg; /* DRB granularity 0=64mb, 1=128mb */ | |
780 | int drc_ddim; /* DRAM Data Integrity Mode 0=none, 2=edac */ | |
781 | u8 value; | |
782 | u32 dra, drc, cumul_size; | |
783 | ||
784 | pci_read_config_dword(pdev, E752X_DRA, &dra); | |
785 | pci_read_config_dword(pdev, E752X_DRC, &drc); | |
786 | drc_chan = dual_channel_active(ddrcsr); | |
787 | drc_drbg = drc_chan + 1; /* 128 in dual mode, 64 in single */ | |
788 | drc_ddim = (drc >> 20) & 0x3; | |
789 | ||
790 | /* The dram row boundary (DRB) reg values are boundary address for | |
791 | * each DRAM row with a granularity of 64 or 128MB (single/dual | |
792 | * channel operation). DRB regs are cumulative; therefore DRB7 will | |
793 | * contain the total memory contained in all eight rows. | |
794 | */ | |
795 | for (last_cumul_size = index = 0; index < mci->nr_csrows; index++) { | |
796 | /* mem_dev 0=x8, 1=x4 */ | |
797 | mem_dev = (dra >> (index * 4 + 2)) & 0x3; | |
798 | csrow = &mci->csrows[index]; | |
799 | ||
800 | mem_dev = (mem_dev == 2); | |
801 | pci_read_config_byte(pdev, E752X_DRB + index, &value); | |
802 | /* convert a 128 or 64 MiB DRB to a page size. */ | |
803 | cumul_size = value << (25 + drc_drbg - PAGE_SHIFT); | |
804 | debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index, | |
805 | cumul_size); | |
806 | if (cumul_size == last_cumul_size) | |
807 | continue; /* not populated */ | |
808 | ||
809 | csrow->first_page = last_cumul_size; | |
810 | csrow->last_page = cumul_size - 1; | |
811 | csrow->nr_pages = cumul_size - last_cumul_size; | |
812 | last_cumul_size = cumul_size; | |
813 | csrow->grain = 1 << 12; /* 4KiB - resolution of CELOG */ | |
814 | csrow->mtype = MEM_RDDR; /* only one type supported */ | |
815 | csrow->dtype = mem_dev ? DEV_X4 : DEV_X8; | |
816 | ||
817 | /* | |
818 | * if single channel or x8 devices then SECDED | |
819 | * if dual channel and x4 then S4ECD4ED | |
820 | */ | |
821 | if (drc_ddim) { | |
822 | if (drc_chan && mem_dev) { | |
823 | csrow->edac_mode = EDAC_S4ECD4ED; | |
824 | mci->edac_cap |= EDAC_FLAG_S4ECD4ED; | |
825 | } else { | |
826 | csrow->edac_mode = EDAC_SECDED; | |
827 | mci->edac_cap |= EDAC_FLAG_SECDED; | |
828 | } | |
829 | } else | |
830 | csrow->edac_mode = EDAC_NONE; | |
831 | } | |
832 | } | |
833 | ||
834 | static void e752x_init_mem_map_table(struct pci_dev *pdev, | |
835 | struct e752x_pvt *pvt) | |
806c35f5 | 836 | { |
806c35f5 | 837 | int index; |
13189525 DT |
838 | u8 value, last, row, stat8; |
839 | ||
840 | last = 0; | |
841 | row = 0; | |
842 | ||
843 | for (index = 0; index < 8; index += 2) { | |
844 | pci_read_config_byte(pdev, E752X_DRB + index, &value); | |
845 | /* test if there is a dimm in this slot */ | |
846 | if (value == last) { | |
847 | /* no dimm in the slot, so flag it as empty */ | |
848 | pvt->map[index] = 0xff; | |
849 | pvt->map[index + 1] = 0xff; | |
850 | } else { /* there is a dimm in the slot */ | |
851 | pvt->map[index] = row; | |
852 | row++; | |
853 | last = value; | |
854 | /* test the next value to see if the dimm is double | |
855 | * sided | |
856 | */ | |
857 | pci_read_config_byte(pdev, E752X_DRB + index + 1, | |
858 | &value); | |
859 | pvt->map[index + 1] = (value == last) ? | |
860 | 0xff : /* the dimm is single sided, | |
861 | so flag as empty */ | |
862 | row; /* this is a double sided dimm | |
863 | to save the next row # */ | |
864 | row++; | |
865 | last = value; | |
866 | } | |
867 | } | |
868 | ||
869 | /* set the map type. 1 = normal, 0 = reversed */ | |
870 | pci_read_config_byte(pdev, E752X_DRM, &stat8); | |
871 | pvt->map_type = ((stat8 & 0x0f) > ((stat8 >> 4) & 0x0f)); | |
872 | } | |
873 | ||
874 | /* Return 0 on success or 1 on failure. */ | |
875 | static int e752x_get_devs(struct pci_dev *pdev, int dev_idx, | |
876 | struct e752x_pvt *pvt) | |
877 | { | |
878 | struct pci_dev *dev; | |
879 | ||
880 | pvt->bridge_ck = pci_get_device(PCI_VENDOR_ID_INTEL, | |
881 | pvt->dev_info->err_dev, | |
882 | pvt->bridge_ck); | |
883 | ||
884 | if (pvt->bridge_ck == NULL) | |
885 | pvt->bridge_ck = pci_scan_single_device(pdev->bus, | |
886 | PCI_DEVFN(0, 1)); | |
887 | ||
888 | if (pvt->bridge_ck == NULL) { | |
889 | e752x_printk(KERN_ERR, "error reporting device not found:" | |
890 | "vendor %x device 0x%x (broken BIOS?)\n", | |
891 | PCI_VENDOR_ID_INTEL, e752x_devs[dev_idx].err_dev); | |
892 | return 1; | |
893 | } | |
894 | ||
895 | dev = pci_get_device(PCI_VENDOR_ID_INTEL, e752x_devs[dev_idx].ctl_dev, | |
896 | NULL); | |
897 | ||
898 | if (dev == NULL) | |
899 | goto fail; | |
900 | ||
901 | pvt->dev_d0f0 = dev; | |
902 | pvt->dev_d0f1 = pci_dev_get(pvt->bridge_ck); | |
903 | ||
904 | return 0; | |
905 | ||
906 | fail: | |
907 | pci_dev_put(pvt->bridge_ck); | |
908 | return 1; | |
909 | } | |
910 | ||
911 | static void e752x_init_error_reporting_regs(struct e752x_pvt *pvt) | |
912 | { | |
913 | struct pci_dev *dev; | |
914 | ||
915 | dev = pvt->dev_d0f1; | |
916 | /* Turn off error disable & SMI in case the BIOS turned it on */ | |
917 | pci_write_config_byte(dev, E752X_HI_ERRMASK, 0x00); | |
918 | pci_write_config_byte(dev, E752X_HI_SMICMD, 0x00); | |
919 | pci_write_config_word(dev, E752X_SYSBUS_ERRMASK, 0x00); | |
920 | pci_write_config_word(dev, E752X_SYSBUS_SMICMD, 0x00); | |
921 | pci_write_config_byte(dev, E752X_BUF_ERRMASK, 0x00); | |
922 | pci_write_config_byte(dev, E752X_BUF_SMICMD, 0x00); | |
923 | pci_write_config_byte(dev, E752X_DRAM_ERRMASK, 0x00); | |
924 | pci_write_config_byte(dev, E752X_DRAM_SMICMD, 0x00); | |
925 | } | |
926 | ||
927 | static int e752x_probe1(struct pci_dev *pdev, int dev_idx) | |
928 | { | |
3847bccc | 929 | u16 pci_data; |
806c35f5 | 930 | u8 stat8; |
13189525 DT |
931 | struct mem_ctl_info *mci; |
932 | struct e752x_pvt *pvt; | |
806c35f5 | 933 | u16 ddrcsr; |
e7ecd891 | 934 | int drc_chan; /* Number of channels 0=1chan,1=2chan */ |
749ede57 | 935 | struct e752x_error_info discard; |
806c35f5 | 936 | |
537fba28 | 937 | debugf0("%s(): mci\n", __func__); |
806c35f5 AC |
938 | debugf0("Starting Probe1\n"); |
939 | ||
96941026 | 940 | /* check to see if device 0 function 1 is enabled; if it isn't, we |
941 | * assume the BIOS has reserved it for a reason and is expecting | |
942 | * exclusive access, we take care not to violate that assumption and | |
943 | * fail the probe. */ | |
806c35f5 | 944 | pci_read_config_byte(pdev, E752X_DEVPRES1, &stat8); |
96941026 | 945 | if (!force_function_unhide && !(stat8 & (1 << 5))) { |
946 | printk(KERN_INFO "Contact your BIOS vendor to see if the " | |
947 | "E752x error registers can be safely un-hidden\n"); | |
13189525 | 948 | return -ENOMEM; |
96941026 | 949 | } |
806c35f5 AC |
950 | stat8 |= (1 << 5); |
951 | pci_write_config_byte(pdev, E752X_DEVPRES1, stat8); | |
952 | ||
806c35f5 AC |
953 | pci_read_config_word(pdev, E752X_DDRCSR, &ddrcsr); |
954 | /* FIXME: should check >>12 or 0xf, true for all? */ | |
955 | /* Dual channel = 1, Single channel = 0 */ | |
13189525 | 956 | drc_chan = dual_channel_active(ddrcsr); |
806c35f5 AC |
957 | |
958 | mci = edac_mc_alloc(sizeof(*pvt), E752X_NR_CSROWS, drc_chan + 1); | |
959 | ||
960 | if (mci == NULL) { | |
13189525 | 961 | return -ENOMEM; |
806c35f5 AC |
962 | } |
963 | ||
537fba28 | 964 | debugf3("%s(): init mci\n", __func__); |
806c35f5 AC |
965 | mci->mtype_cap = MEM_FLAG_RDDR; |
966 | mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED | | |
967 | EDAC_FLAG_S4ECD4ED; | |
968 | /* FIXME - what if different memory types are in different csrows? */ | |
680cbbbb | 969 | mci->mod_name = EDAC_MOD_STR; |
37f04581 DT |
970 | mci->mod_ver = E752X_REVISION; |
971 | mci->dev = &pdev->dev; | |
806c35f5 | 972 | |
537fba28 | 973 | debugf3("%s(): init pvt\n", __func__); |
806c35f5 AC |
974 | pvt = (struct e752x_pvt *) mci->pvt_info; |
975 | pvt->dev_info = &e752x_devs[dev_idx]; | |
13189525 | 976 | pvt->mc_symmetric = ((ddrcsr & 0x10) != 0); |
e7ecd891 | 977 | |
13189525 DT |
978 | if (e752x_get_devs(pdev, dev_idx, pvt)) { |
979 | edac_mc_free(mci); | |
980 | return -ENODEV; | |
806c35f5 | 981 | } |
806c35f5 | 982 | |
537fba28 | 983 | debugf3("%s(): more mci init\n", __func__); |
806c35f5 AC |
984 | mci->ctl_name = pvt->dev_info->ctl_name; |
985 | mci->edac_check = e752x_check; | |
986 | mci->ctl_page_to_phys = ctl_page_to_phys; | |
987 | ||
13189525 DT |
988 | e752x_init_csrows(mci, pdev, ddrcsr); |
989 | e752x_init_mem_map_table(pdev, pvt); | |
806c35f5 AC |
990 | |
991 | /* set the map type. 1 = normal, 0 = reversed */ | |
37f04581 | 992 | pci_read_config_byte(pdev, E752X_DRM, &stat8); |
806c35f5 AC |
993 | pvt->map_type = ((stat8 & 0x0f) > ((stat8 >> 4) & 0x0f)); |
994 | ||
995 | mci->edac_cap |= EDAC_FLAG_NONE; | |
537fba28 | 996 | debugf3("%s(): tolm, remapbase, remaplimit\n", __func__); |
e7ecd891 | 997 | |
806c35f5 | 998 | /* load the top of low memory, remap base, and remap limit vars */ |
37f04581 | 999 | pci_read_config_word(pdev, E752X_TOLM, &pci_data); |
806c35f5 | 1000 | pvt->tolm = ((u32) pci_data) << 4; |
37f04581 | 1001 | pci_read_config_word(pdev, E752X_REMAPBASE, &pci_data); |
806c35f5 | 1002 | pvt->remapbase = ((u32) pci_data) << 14; |
37f04581 | 1003 | pci_read_config_word(pdev, E752X_REMAPLIMIT, &pci_data); |
806c35f5 | 1004 | pvt->remaplimit = ((u32) pci_data) << 14; |
537fba28 | 1005 | e752x_printk(KERN_INFO, |
e7ecd891 DP |
1006 | "tolm = %x, remapbase = %x, remaplimit = %x\n", pvt->tolm, |
1007 | pvt->remapbase, pvt->remaplimit); | |
806c35f5 | 1008 | |
2d7bbb91 DT |
1009 | /* Here we assume that we will never see multiple instances of this |
1010 | * type of memory controller. The ID is therefore hardcoded to 0. | |
1011 | */ | |
1012 | if (edac_mc_add_mc(mci,0)) { | |
537fba28 | 1013 | debugf3("%s(): failed edac_mc_add_mc()\n", __func__); |
806c35f5 AC |
1014 | goto fail; |
1015 | } | |
1016 | ||
13189525 | 1017 | e752x_init_error_reporting_regs(pvt); |
e7ecd891 | 1018 | e752x_get_error_info(mci, &discard); /* clear other MCH errors */ |
806c35f5 AC |
1019 | |
1020 | /* get this far and it's successful */ | |
537fba28 | 1021 | debugf3("%s(): success\n", __func__); |
806c35f5 AC |
1022 | return 0; |
1023 | ||
1024 | fail: | |
13189525 DT |
1025 | pci_dev_put(pvt->dev_d0f0); |
1026 | pci_dev_put(pvt->dev_d0f1); | |
1027 | pci_dev_put(pvt->bridge_ck); | |
1028 | edac_mc_free(mci); | |
e7ecd891 | 1029 | |
13189525 | 1030 | return -ENODEV; |
806c35f5 AC |
1031 | } |
1032 | ||
1033 | /* returns count (>= 0), or negative on error */ | |
1034 | static int __devinit e752x_init_one(struct pci_dev *pdev, | |
e7ecd891 | 1035 | const struct pci_device_id *ent) |
806c35f5 | 1036 | { |
537fba28 | 1037 | debugf0("%s()\n", __func__); |
806c35f5 AC |
1038 | |
1039 | /* wake up and enable device */ | |
1040 | if(pci_enable_device(pdev) < 0) | |
1041 | return -EIO; | |
e7ecd891 | 1042 | |
806c35f5 AC |
1043 | return e752x_probe1(pdev, ent->driver_data); |
1044 | } | |
1045 | ||
806c35f5 AC |
1046 | static void __devexit e752x_remove_one(struct pci_dev *pdev) |
1047 | { | |
1048 | struct mem_ctl_info *mci; | |
1049 | struct e752x_pvt *pvt; | |
1050 | ||
537fba28 | 1051 | debugf0("%s()\n", __func__); |
806c35f5 | 1052 | |
37f04581 | 1053 | if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL) |
806c35f5 AC |
1054 | return; |
1055 | ||
1056 | pvt = (struct e752x_pvt *) mci->pvt_info; | |
1057 | pci_dev_put(pvt->dev_d0f0); | |
1058 | pci_dev_put(pvt->dev_d0f1); | |
1059 | pci_dev_put(pvt->bridge_ck); | |
1060 | edac_mc_free(mci); | |
1061 | } | |
1062 | ||
806c35f5 | 1063 | static const struct pci_device_id e752x_pci_tbl[] __devinitdata = { |
e7ecd891 DP |
1064 | { |
1065 | PCI_VEND_DEV(INTEL, 7520_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, | |
1066 | E7520 | |
1067 | }, | |
1068 | { | |
1069 | PCI_VEND_DEV(INTEL, 7525_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, | |
1070 | E7525 | |
1071 | }, | |
1072 | { | |
1073 | PCI_VEND_DEV(INTEL, 7320_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, | |
1074 | E7320 | |
1075 | }, | |
1076 | { | |
1077 | 0, | |
1078 | } /* 0 terminated list. */ | |
806c35f5 AC |
1079 | }; |
1080 | ||
1081 | MODULE_DEVICE_TABLE(pci, e752x_pci_tbl); | |
1082 | ||
806c35f5 | 1083 | static struct pci_driver e752x_driver = { |
680cbbbb | 1084 | .name = EDAC_MOD_STR, |
0d38b049 RD |
1085 | .probe = e752x_init_one, |
1086 | .remove = __devexit_p(e752x_remove_one), | |
1087 | .id_table = e752x_pci_tbl, | |
806c35f5 AC |
1088 | }; |
1089 | ||
da9bb1d2 | 1090 | static int __init e752x_init(void) |
806c35f5 AC |
1091 | { |
1092 | int pci_rc; | |
1093 | ||
537fba28 | 1094 | debugf3("%s()\n", __func__); |
806c35f5 AC |
1095 | pci_rc = pci_register_driver(&e752x_driver); |
1096 | return (pci_rc < 0) ? pci_rc : 0; | |
1097 | } | |
1098 | ||
806c35f5 AC |
1099 | static void __exit e752x_exit(void) |
1100 | { | |
537fba28 | 1101 | debugf3("%s()\n", __func__); |
806c35f5 AC |
1102 | pci_unregister_driver(&e752x_driver); |
1103 | } | |
1104 | ||
806c35f5 AC |
1105 | module_init(e752x_init); |
1106 | module_exit(e752x_exit); | |
1107 | ||
1108 | MODULE_LICENSE("GPL"); | |
1109 | MODULE_AUTHOR("Linux Networx (http://lnxi.com) Tom Zimmerman\n"); | |
1110 | MODULE_DESCRIPTION("MC support for Intel e752x memory controllers"); | |
96941026 | 1111 | |
1112 | module_param(force_function_unhide, int, 0444); | |
1113 | MODULE_PARM_DESC(force_function_unhide, "if BIOS sets Dev0:Fun1 up as hidden:" | |
1114 | " 1=force unhide and hope BIOS doesn't fight driver for Dev0:Fun1 access"); | |
1115 |