diff options
author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-03-04 13:11:29 -0500 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-10-31 13:10:04 -0400 |
commit | ddeb3547d4823495c6604750c241e5a3810f51a3 (patch) | |
tree | 29ad379181d1dc7e272299a02e5e47b9353315dc /drivers/edac | |
parent | 224e871f36e1f9edddb0dfecbb84ff9765af3eb4 (diff) |
edac: Move edac main structs to include/linux/edac.h
As we'll need to use those structs for trace functions, they should
be on a more public place. So, move struct mem_ctl_info & friends
to edac.h.
No functional changes on this patch.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Diffstat (limited to 'drivers/edac')
-rw-r--r-- | drivers/edac/edac_core.h | 350 |
1 files changed, 1 insertions, 349 deletions
diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h index 55b8278bb172..fe90cd4a7ebc 100644 --- a/drivers/edac/edac_core.h +++ b/drivers/edac/edac_core.h | |||
@@ -34,11 +34,10 @@ | |||
34 | #include <linux/platform_device.h> | 34 | #include <linux/platform_device.h> |
35 | #include <linux/sysdev.h> | 35 | #include <linux/sysdev.h> |
36 | #include <linux/workqueue.h> | 36 | #include <linux/workqueue.h> |
37 | #include <linux/edac.h> | ||
37 | 38 | ||
38 | #define EDAC_MC_LABEL_LEN 31 | ||
39 | #define EDAC_DEVICE_NAME_LEN 31 | 39 | #define EDAC_DEVICE_NAME_LEN 31 |
40 | #define EDAC_ATTRIB_VALUE_LEN 15 | 40 | #define EDAC_ATTRIB_VALUE_LEN 15 |
41 | #define MC_PROC_NAME_MAX_LEN 7 | ||
42 | 41 | ||
43 | #if PAGE_SHIFT < 20 | 42 | #if PAGE_SHIFT < 20 |
44 | #define PAGES_TO_MiB(pages) ((pages) >> (20 - PAGE_SHIFT)) | 43 | #define PAGES_TO_MiB(pages) ((pages) >> (20 - PAGE_SHIFT)) |
@@ -101,353 +100,6 @@ extern int edac_debug_level; | |||
101 | 100 | ||
102 | #define edac_dev_name(dev) (dev)->dev_name | 101 | #define edac_dev_name(dev) (dev)->dev_name |
103 | 102 | ||
104 | /* memory devices */ | ||
105 | enum dev_type { | ||
106 | DEV_UNKNOWN = 0, | ||
107 | DEV_X1, | ||
108 | DEV_X2, | ||
109 | DEV_X4, | ||
110 | DEV_X8, | ||
111 | DEV_X16, | ||
112 | DEV_X32, /* Do these parts exist? */ | ||
113 | DEV_X64 /* Do these parts exist? */ | ||
114 | }; | ||
115 | |||
116 | #define DEV_FLAG_UNKNOWN BIT(DEV_UNKNOWN) | ||
117 | #define DEV_FLAG_X1 BIT(DEV_X1) | ||
118 | #define DEV_FLAG_X2 BIT(DEV_X2) | ||
119 | #define DEV_FLAG_X4 BIT(DEV_X4) | ||
120 | #define DEV_FLAG_X8 BIT(DEV_X8) | ||
121 | #define DEV_FLAG_X16 BIT(DEV_X16) | ||
122 | #define DEV_FLAG_X32 BIT(DEV_X32) | ||
123 | #define DEV_FLAG_X64 BIT(DEV_X64) | ||
124 | |||
125 | /* memory types */ | ||
126 | enum mem_type { | ||
127 | MEM_EMPTY = 0, /* Empty csrow */ | ||
128 | MEM_RESERVED, /* Reserved csrow type */ | ||
129 | MEM_UNKNOWN, /* Unknown csrow type */ | ||
130 | MEM_FPM, /* Fast page mode */ | ||
131 | MEM_EDO, /* Extended data out */ | ||
132 | MEM_BEDO, /* Burst Extended data out */ | ||
133 | MEM_SDR, /* Single data rate SDRAM */ | ||
134 | MEM_RDR, /* Registered single data rate SDRAM */ | ||
135 | MEM_DDR, /* Double data rate SDRAM */ | ||
136 | MEM_RDDR, /* Registered Double data rate SDRAM */ | ||
137 | MEM_RMBS, /* Rambus DRAM */ | ||
138 | MEM_DDR2, /* DDR2 RAM */ | ||
139 | MEM_FB_DDR2, /* fully buffered DDR2 */ | ||
140 | MEM_RDDR2, /* Registered DDR2 RAM */ | ||
141 | MEM_XDR, /* Rambus XDR */ | ||
142 | MEM_DDR3, /* DDR3 RAM */ | ||
143 | MEM_RDDR3, /* Registered DDR3 RAM */ | ||
144 | }; | ||
145 | |||
146 | #define MEM_FLAG_EMPTY BIT(MEM_EMPTY) | ||
147 | #define MEM_FLAG_RESERVED BIT(MEM_RESERVED) | ||
148 | #define MEM_FLAG_UNKNOWN BIT(MEM_UNKNOWN) | ||
149 | #define MEM_FLAG_FPM BIT(MEM_FPM) | ||
150 | #define MEM_FLAG_EDO BIT(MEM_EDO) | ||
151 | #define MEM_FLAG_BEDO BIT(MEM_BEDO) | ||
152 | #define MEM_FLAG_SDR BIT(MEM_SDR) | ||
153 | #define MEM_FLAG_RDR BIT(MEM_RDR) | ||
154 | #define MEM_FLAG_DDR BIT(MEM_DDR) | ||
155 | #define MEM_FLAG_RDDR BIT(MEM_RDDR) | ||
156 | #define MEM_FLAG_RMBS BIT(MEM_RMBS) | ||
157 | #define MEM_FLAG_DDR2 BIT(MEM_DDR2) | ||
158 | #define MEM_FLAG_FB_DDR2 BIT(MEM_FB_DDR2) | ||
159 | #define MEM_FLAG_RDDR2 BIT(MEM_RDDR2) | ||
160 | #define MEM_FLAG_XDR BIT(MEM_XDR) | ||
161 | #define MEM_FLAG_DDR3 BIT(MEM_DDR3) | ||
162 | #define MEM_FLAG_RDDR3 BIT(MEM_RDDR3) | ||
163 | |||
164 | /* chipset Error Detection and Correction capabilities and mode */ | ||
165 | enum edac_type { | ||
166 | EDAC_UNKNOWN = 0, /* Unknown if ECC is available */ | ||
167 | EDAC_NONE, /* Doesn't support ECC */ | ||
168 | EDAC_RESERVED, /* Reserved ECC type */ | ||
169 | EDAC_PARITY, /* Detects parity errors */ | ||
170 | EDAC_EC, /* Error Checking - no correction */ | ||
171 | EDAC_SECDED, /* Single bit error correction, Double detection */ | ||
172 | EDAC_S2ECD2ED, /* Chipkill x2 devices - do these exist? */ | ||
173 | EDAC_S4ECD4ED, /* Chipkill x4 devices */ | ||
174 | EDAC_S8ECD8ED, /* Chipkill x8 devices */ | ||
175 | EDAC_S16ECD16ED, /* Chipkill x16 devices */ | ||
176 | }; | ||
177 | |||
178 | #define EDAC_FLAG_UNKNOWN BIT(EDAC_UNKNOWN) | ||
179 | #define EDAC_FLAG_NONE BIT(EDAC_NONE) | ||
180 | #define EDAC_FLAG_PARITY BIT(EDAC_PARITY) | ||
181 | #define EDAC_FLAG_EC BIT(EDAC_EC) | ||
182 | #define EDAC_FLAG_SECDED BIT(EDAC_SECDED) | ||
183 | #define EDAC_FLAG_S2ECD2ED BIT(EDAC_S2ECD2ED) | ||
184 | #define EDAC_FLAG_S4ECD4ED BIT(EDAC_S4ECD4ED) | ||
185 | #define EDAC_FLAG_S8ECD8ED BIT(EDAC_S8ECD8ED) | ||
186 | #define EDAC_FLAG_S16ECD16ED BIT(EDAC_S16ECD16ED) | ||
187 | |||
188 | /* scrubbing capabilities */ | ||
189 | enum scrub_type { | ||
190 | SCRUB_UNKNOWN = 0, /* Unknown if scrubber is available */ | ||
191 | SCRUB_NONE, /* No scrubber */ | ||
192 | SCRUB_SW_PROG, /* SW progressive (sequential) scrubbing */ | ||
193 | SCRUB_SW_SRC, /* Software scrub only errors */ | ||
194 | SCRUB_SW_PROG_SRC, /* Progressive software scrub from an error */ | ||
195 | SCRUB_SW_TUNABLE, /* Software scrub frequency is tunable */ | ||
196 | SCRUB_HW_PROG, /* HW progressive (sequential) scrubbing */ | ||
197 | SCRUB_HW_SRC, /* Hardware scrub only errors */ | ||
198 | SCRUB_HW_PROG_SRC, /* Progressive hardware scrub from an error */ | ||
199 | SCRUB_HW_TUNABLE /* Hardware scrub frequency is tunable */ | ||
200 | }; | ||
201 | |||
202 | #define SCRUB_FLAG_SW_PROG BIT(SCRUB_SW_PROG) | ||
203 | #define SCRUB_FLAG_SW_SRC BIT(SCRUB_SW_SRC) | ||
204 | #define SCRUB_FLAG_SW_PROG_SRC BIT(SCRUB_SW_PROG_SRC) | ||
205 | #define SCRUB_FLAG_SW_TUN BIT(SCRUB_SW_SCRUB_TUNABLE) | ||
206 | #define SCRUB_FLAG_HW_PROG BIT(SCRUB_HW_PROG) | ||
207 | #define SCRUB_FLAG_HW_SRC BIT(SCRUB_HW_SRC) | ||
208 | #define SCRUB_FLAG_HW_PROG_SRC BIT(SCRUB_HW_PROG_SRC) | ||
209 | #define SCRUB_FLAG_HW_TUN BIT(SCRUB_HW_TUNABLE) | ||
210 | |||
211 | /* FIXME - should have notify capabilities: NMI, LOG, PROC, etc */ | ||
212 | |||
213 | /* EDAC internal operation states */ | ||
214 | #define OP_ALLOC 0x100 | ||
215 | #define OP_RUNNING_POLL 0x201 | ||
216 | #define OP_RUNNING_INTERRUPT 0x202 | ||
217 | #define OP_RUNNING_POLL_INTR 0x203 | ||
218 | #define OP_OFFLINE 0x300 | ||
219 | |||
220 | /* | ||
221 | * There are several things to be aware of that aren't at all obvious: | ||
222 | * | ||
223 | * | ||
224 | * SOCKETS, SOCKET SETS, BANKS, ROWS, CHIP-SELECT ROWS, CHANNELS, etc.. | ||
225 | * | ||
226 | * These are some of the many terms that are thrown about that don't always | ||
227 | * mean what people think they mean (Inconceivable!). In the interest of | ||
228 | * creating a common ground for discussion, terms and their definitions | ||
229 | * will be established. | ||
230 | * | ||
231 | * Memory devices: The individual chip on a memory stick. These devices | ||
232 | * commonly output 4 and 8 bits each. Grouping several | ||
233 | * of these in parallel provides 64 bits which is common | ||
234 | * for a memory stick. | ||
235 | * | ||
236 | * Memory Stick: A printed circuit board that aggregates multiple | ||
237 | * memory devices in parallel. This is the atomic | ||
238 | * memory component that is purchaseable by Joe consumer | ||
239 | * and loaded into a memory socket. | ||
240 | * | ||
241 | * Socket: A physical connector on the motherboard that accepts | ||
242 | * a single memory stick. | ||
243 | * | ||
244 | * Channel: Set of memory devices on a memory stick that must be | ||
245 | * grouped in parallel with one or more additional | ||
246 | * channels from other memory sticks. This parallel | ||
247 | * grouping of the output from multiple channels are | ||
248 | * necessary for the smallest granularity of memory access. | ||
249 | * Some memory controllers are capable of single channel - | ||
250 | * which means that memory sticks can be loaded | ||
251 | * individually. Other memory controllers are only | ||
252 | * capable of dual channel - which means that memory | ||
253 | * sticks must be loaded as pairs (see "socket set"). | ||
254 | * | ||
255 | * Chip-select row: All of the memory devices that are selected together. | ||
256 | * for a single, minimum grain of memory access. | ||
257 | * This selects all of the parallel memory devices across | ||
258 | * all of the parallel channels. Common chip-select rows | ||
259 | * for single channel are 64 bits, for dual channel 128 | ||
260 | * bits. | ||
261 | * | ||
262 | * Single-Ranked stick: A Single-ranked stick has 1 chip-select row of memory. | ||
263 | * Motherboards commonly drive two chip-select pins to | ||
264 | * a memory stick. A single-ranked stick, will occupy | ||
265 | * only one of those rows. The other will be unused. | ||
266 | * | ||
267 | * Double-Ranked stick: A double-ranked stick has two chip-select rows which | ||
268 | * access different sets of memory devices. The two | ||
269 | * rows cannot be accessed concurrently. | ||
270 | * | ||
271 | * Double-sided stick: DEPRECATED TERM, see Double-Ranked stick. | ||
272 | * A double-sided stick has two chip-select rows which | ||
273 | * access different sets of memory devices. The two | ||
274 | * rows cannot be accessed concurrently. "Double-sided" | ||
275 | * is irrespective of the memory devices being mounted | ||
276 | * on both sides of the memory stick. | ||
277 | * | ||
278 | * Socket set: All of the memory sticks that are required for | ||
279 | * a single memory access or all of the memory sticks | ||
280 | * spanned by a chip-select row. A single socket set | ||
281 | * has two chip-select rows and if double-sided sticks | ||
282 | * are used these will occupy those chip-select rows. | ||
283 | * | ||
284 | * Bank: This term is avoided because it is unclear when | ||
285 | * needing to distinguish between chip-select rows and | ||
286 | * socket sets. | ||
287 | * | ||
288 | * Controller pages: | ||
289 | * | ||
290 | * Physical pages: | ||
291 | * | ||
292 | * Virtual pages: | ||
293 | * | ||
294 | * | ||
295 | * STRUCTURE ORGANIZATION AND CHOICES | ||
296 | * | ||
297 | * | ||
298 | * | ||
299 | * PS - I enjoyed writing all that about as much as you enjoyed reading it. | ||
300 | */ | ||
301 | |||
302 | struct channel_info { | ||
303 | int chan_idx; /* channel index */ | ||
304 | u32 ce_count; /* Correctable Errors for this CHANNEL */ | ||
305 | char label[EDAC_MC_LABEL_LEN + 1]; /* DIMM label on motherboard */ | ||
306 | struct csrow_info *csrow; /* the parent */ | ||
307 | }; | ||
308 | |||
309 | struct csrow_info { | ||
310 | unsigned long first_page; /* first page number in dimm */ | ||
311 | unsigned long last_page; /* last page number in dimm */ | ||
312 | unsigned long page_mask; /* used for interleaving - | ||
313 | * 0UL for non intlv | ||
314 | */ | ||
315 | u32 nr_pages; /* number of pages in csrow */ | ||
316 | u32 grain; /* granularity of reported error in bytes */ | ||
317 | int csrow_idx; /* the chip-select row */ | ||
318 | enum dev_type dtype; /* memory device type */ | ||
319 | u32 ue_count; /* Uncorrectable Errors for this csrow */ | ||
320 | u32 ce_count; /* Correctable Errors for this csrow */ | ||
321 | enum mem_type mtype; /* memory csrow type */ | ||
322 | enum edac_type edac_mode; /* EDAC mode for this csrow */ | ||
323 | struct mem_ctl_info *mci; /* the parent */ | ||
324 | |||
325 | struct kobject kobj; /* sysfs kobject for this csrow */ | ||
326 | |||
327 | /* channel information for this csrow */ | ||
328 | u32 nr_channels; | ||
329 | struct channel_info *channels; | ||
330 | }; | ||
331 | |||
332 | struct mcidev_sysfs_group { | ||
333 | const char *name; /* group name */ | ||
334 | const struct mcidev_sysfs_attribute *mcidev_attr; /* group attributes */ | ||
335 | }; | ||
336 | |||
337 | struct mcidev_sysfs_group_kobj { | ||
338 | struct list_head list; /* list for all instances within a mc */ | ||
339 | |||
340 | struct kobject kobj; /* kobj for the group */ | ||
341 | |||
342 | const struct mcidev_sysfs_group *grp; /* group description table */ | ||
343 | struct mem_ctl_info *mci; /* the parent */ | ||
344 | }; | ||
345 | |||
346 | /* mcidev_sysfs_attribute structure | ||
347 | * used for driver sysfs attributes and in mem_ctl_info | ||
348 | * sysfs top level entries | ||
349 | */ | ||
350 | struct mcidev_sysfs_attribute { | ||
351 | /* It should use either attr or grp */ | ||
352 | struct attribute attr; | ||
353 | const struct mcidev_sysfs_group *grp; /* Points to a group of attributes */ | ||
354 | |||
355 | /* Ops for show/store values at the attribute - not used on group */ | ||
356 | ssize_t (*show)(struct mem_ctl_info *,char *); | ||
357 | ssize_t (*store)(struct mem_ctl_info *, const char *,size_t); | ||
358 | }; | ||
359 | |||
360 | /* MEMORY controller information structure | ||
361 | */ | ||
362 | struct mem_ctl_info { | ||
363 | struct list_head link; /* for global list of mem_ctl_info structs */ | ||
364 | |||
365 | struct module *owner; /* Module owner of this control struct */ | ||
366 | |||
367 | unsigned long mtype_cap; /* memory types supported by mc */ | ||
368 | unsigned long edac_ctl_cap; /* Mem controller EDAC capabilities */ | ||
369 | unsigned long edac_cap; /* configuration capabilities - this is | ||
370 | * closely related to edac_ctl_cap. The | ||
371 | * difference is that the controller may be | ||
372 | * capable of s4ecd4ed which would be listed | ||
373 | * in edac_ctl_cap, but if channels aren't | ||
374 | * capable of s4ecd4ed then the edac_cap would | ||
375 | * not have that capability. | ||
376 | */ | ||
377 | unsigned long scrub_cap; /* chipset scrub capabilities */ | ||
378 | enum scrub_type scrub_mode; /* current scrub mode */ | ||
379 | |||
380 | /* Translates sdram memory scrub rate given in bytes/sec to the | ||
381 | internal representation and configures whatever else needs | ||
382 | to be configured. | ||
383 | */ | ||
384 | int (*set_sdram_scrub_rate) (struct mem_ctl_info * mci, u32 bw); | ||
385 | |||
386 | /* Get the current sdram memory scrub rate from the internal | ||
387 | representation and converts it to the closest matching | ||
388 | bandwidth in bytes/sec. | ||
389 | */ | ||
390 | int (*get_sdram_scrub_rate) (struct mem_ctl_info * mci); | ||
391 | |||
392 | |||
393 | /* pointer to edac checking routine */ | ||
394 | void (*edac_check) (struct mem_ctl_info * mci); | ||
395 | |||
396 | /* | ||
397 | * Remaps memory pages: controller pages to physical pages. | ||
398 | * For most MC's, this will be NULL. | ||
399 | */ | ||
400 | /* FIXME - why not send the phys page to begin with? */ | ||
401 | unsigned long (*ctl_page_to_phys) (struct mem_ctl_info * mci, | ||
402 | unsigned long page); | ||
403 | int mc_idx; | ||
404 | int nr_csrows; | ||
405 | struct csrow_info *csrows; | ||
406 | /* | ||
407 | * FIXME - what about controllers on other busses? - IDs must be | ||
408 | * unique. dev pointer should be sufficiently unique, but | ||
409 | * BUS:SLOT.FUNC numbers may not be unique. | ||
410 | */ | ||
411 | struct device *dev; | ||
412 | const char *mod_name; | ||
413 | const char *mod_ver; | ||
414 | const char *ctl_name; | ||
415 | const char *dev_name; | ||
416 | char proc_name[MC_PROC_NAME_MAX_LEN + 1]; | ||
417 | void *pvt_info; | ||
418 | u32 ue_noinfo_count; /* Uncorrectable Errors w/o info */ | ||
419 | u32 ce_noinfo_count; /* Correctable Errors w/o info */ | ||
420 | u32 ue_count; /* Total Uncorrectable Errors for this MC */ | ||
421 | u32 ce_count; /* Total Correctable Errors for this MC */ | ||
422 | unsigned long start_time; /* mci load start time (in jiffies) */ | ||
423 | |||
424 | struct completion complete; | ||
425 | |||
426 | /* edac sysfs device control */ | ||
427 | struct kobject edac_mci_kobj; | ||
428 | |||
429 | /* list for all grp instances within a mc */ | ||
430 | struct list_head grp_kobj_list; | ||
431 | |||
432 | /* Additional top controller level attributes, but specified | ||
433 | * by the low level driver. | ||
434 | * | ||
435 | * Set by the low level driver to provide attributes at the | ||
436 | * controller level, same level as 'ue_count' and 'ce_count' above. | ||
437 | * An array of structures, NULL terminated | ||
438 | * | ||
439 | * If attributes are desired, then set to array of attributes | ||
440 | * If no attributes are desired, leave NULL | ||
441 | */ | ||
442 | const struct mcidev_sysfs_attribute *mc_driver_sysfs_attributes; | ||
443 | |||
444 | /* work struct for this MC */ | ||
445 | struct delayed_work work; | ||
446 | |||
447 | /* the internal state of this controller instance */ | ||
448 | int op_state; | ||
449 | }; | ||
450 | |||
451 | /* | 103 | /* |
452 | * The following are the structures to provide for a generic | 104 | * The following are the structures to provide for a generic |
453 | * or abstract 'edac_device'. This set of structures and the | 105 | * or abstract 'edac_device'. This set of structures and the |