Commit | Line | Data |
---|---|---|
e27e3dac DT |
1 | |
2 | /* | |
3 | * edac_device.c | |
4 | * (C) 2007 www.douglaskthompson.com | |
5 | * | |
6 | * This file may be distributed under the terms of the | |
7 | * GNU General Public License. | |
8 | * | |
9 | * Written by Doug Thompson <norsk5@xmission.com> | |
10 | * | |
11 | * edac_device API implementation | |
12 | * 19 Jan 2007 | |
13 | */ | |
14 | ||
6d8ef247 | 15 | #include <asm/page.h> |
7c0f6ba6 | 16 | #include <linux/uaccess.h> |
6d8ef247 MCC |
17 | #include <linux/ctype.h> |
18 | #include <linux/highmem.h> | |
19 | #include <linux/init.h> | |
20 | #include <linux/jiffies.h> | |
e27e3dac | 21 | #include <linux/module.h> |
6d8ef247 | 22 | #include <linux/slab.h> |
e27e3dac | 23 | #include <linux/smp.h> |
6d8ef247 | 24 | #include <linux/spinlock.h> |
e27e3dac | 25 | #include <linux/sysctl.h> |
e27e3dac | 26 | #include <linux/timer.h> |
e27e3dac | 27 | |
6d8ef247 | 28 | #include "edac_device.h" |
e27e3dac DT |
29 | #include "edac_module.h" |
30 | ||
bf52fa4a DT |
31 | /* lock for the list: 'edac_device_list', manipulation of this list |
32 | * is protected by the 'device_ctls_mutex' lock | |
33 | */ | |
0ca84761 | 34 | static DEFINE_MUTEX(device_ctls_mutex); |
ff6ac2a6 | 35 | static LIST_HEAD(edac_device_list); |
e27e3dac | 36 | |
cec669ff MS |
37 | /* Default workqueue processing interval on this instance, in msecs */ |
38 | #define DEFAULT_POLL_INTERVAL 1000 | |
39 | ||
e27e3dac DT |
40 | #ifdef CONFIG_EDAC_DEBUG |
41 | static void edac_device_dump_device(struct edac_device_ctl_info *edac_dev) | |
42 | { | |
956b9ba1 JP |
43 | edac_dbg(3, "\tedac_dev = %p dev_idx=%d\n", |
44 | edac_dev, edac_dev->dev_idx); | |
45 | edac_dbg(4, "\tedac_dev->edac_check = %p\n", edac_dev->edac_check); | |
46 | edac_dbg(3, "\tdev = %p\n", edac_dev->dev); | |
47 | edac_dbg(3, "\tmod_name:ctl_name = %s:%s\n", | |
48 | edac_dev->mod_name, edac_dev->ctl_name); | |
49 | edac_dbg(3, "\tpvt_info = %p\n\n", edac_dev->pvt_info); | |
e27e3dac | 50 | } |
079708b9 | 51 | #endif /* CONFIG_EDAC_DEBUG */ |
e27e3dac | 52 | |
0d24a49e BP |
53 | /* |
54 | * @off_val: zero, 1, or other based offset | |
55 | */ | |
56 | struct edac_device_ctl_info * | |
57 | edac_device_alloc_ctl_info(unsigned pvt_sz, char *dev_name, unsigned nr_instances, | |
58 | char *blk_name, unsigned nr_blocks, unsigned off_val, | |
48bc8869 | 59 | int device_index) |
e27e3dac | 60 | { |
0d24a49e BP |
61 | struct edac_device_block *dev_blk, *blk_p, *blk; |
62 | struct edac_device_instance *dev_inst, *inst; | |
63 | struct edac_device_ctl_info *dev_ctl; | |
48bc8869 | 64 | unsigned instance, block; |
9fb9ce39 | 65 | void *pvt; |
1c3631ff | 66 | int err; |
e27e3dac | 67 | |
956b9ba1 | 68 | edac_dbg(4, "instances=%d blocks=%d\n", nr_instances, nr_blocks); |
e27e3dac | 69 | |
9fb9ce39 BP |
70 | dev_ctl = kzalloc(sizeof(struct edac_device_ctl_info), GFP_KERNEL); |
71 | if (!dev_ctl) | |
72 | return NULL; | |
e27e3dac | 73 | |
13088b65 | 74 | dev_inst = kcalloc(nr_instances, sizeof(struct edac_device_instance), GFP_KERNEL); |
9fb9ce39 BP |
75 | if (!dev_inst) |
76 | goto free; | |
e27e3dac | 77 | |
9fb9ce39 | 78 | dev_ctl->instances = dev_inst; |
e27e3dac | 79 | |
13088b65 | 80 | dev_blk = kcalloc(nr_instances * nr_blocks, sizeof(struct edac_device_block), GFP_KERNEL); |
9fb9ce39 BP |
81 | if (!dev_blk) |
82 | goto free; | |
e27e3dac | 83 | |
9fb9ce39 | 84 | dev_ctl->blocks = dev_blk; |
fd309a9d | 85 | |
0d24a49e BP |
86 | if (pvt_sz) { |
87 | pvt = kzalloc(pvt_sz, GFP_KERNEL); | |
9fb9ce39 BP |
88 | if (!pvt) |
89 | goto free; | |
90 | ||
91 | dev_ctl->pvt_info = pvt; | |
92 | } | |
93 | ||
94 | dev_ctl->dev_idx = device_index; | |
95 | dev_ctl->nr_instances = nr_instances; | |
e27e3dac | 96 | |
56e61a9c DT |
97 | /* Default logging of CEs and UEs */ |
98 | dev_ctl->log_ce = 1; | |
99 | dev_ctl->log_ue = 1; | |
100 | ||
52490c8d | 101 | /* Name of this edac device */ |
0d24a49e | 102 | snprintf(dev_ctl->name, sizeof(dev_ctl->name),"%s", dev_name); |
b2a4ac0c | 103 | |
e27e3dac DT |
104 | /* Initialize every Instance */ |
105 | for (instance = 0; instance < nr_instances; instance++) { | |
106 | inst = &dev_inst[instance]; | |
107 | inst->ctl = dev_ctl; | |
108 | inst->nr_blocks = nr_blocks; | |
109 | blk_p = &dev_blk[instance * nr_blocks]; | |
110 | inst->blocks = blk_p; | |
111 | ||
112 | /* name of this instance */ | |
0d24a49e | 113 | snprintf(inst->name, sizeof(inst->name), "%s%u", dev_name, instance); |
e27e3dac DT |
114 | |
115 | /* Initialize every block in each instance */ | |
079708b9 | 116 | for (block = 0; block < nr_blocks; block++) { |
e27e3dac DT |
117 | blk = &blk_p[block]; |
118 | blk->instance = inst; | |
e27e3dac | 119 | snprintf(blk->name, sizeof(blk->name), |
0d24a49e | 120 | "%s%d", blk_name, block + off_val); |
e27e3dac | 121 | |
956b9ba1 JP |
122 | edac_dbg(4, "instance=%d inst_p=%p block=#%d block_p=%p name='%s'\n", |
123 | instance, inst, block, blk, blk->name); | |
e27e3dac DT |
124 | } |
125 | } | |
126 | ||
127 | /* Mark this instance as merely ALLOCATED */ | |
128 | dev_ctl->op_state = OP_ALLOC; | |
129 | ||
1c3631ff DT |
130 | /* |
131 | * Initialize the 'root' kobj for the edac_device controller | |
132 | */ | |
133 | err = edac_device_register_sysfs_main_kobj(dev_ctl); | |
9fb9ce39 BP |
134 | if (err) |
135 | goto free; | |
1c3631ff DT |
136 | |
137 | /* at this point, the root kobj is valid, and in order to | |
138 | * 'free' the object, then the function: | |
139 | * edac_device_unregister_sysfs_main_kobj() must be called | |
140 | * which will perform kobj unregistration and the actual free | |
141 | * will occur during the kobject callback operation | |
142 | */ | |
143 | ||
e27e3dac | 144 | return dev_ctl; |
9fb9ce39 BP |
145 | |
146 | free: | |
147 | __edac_device_free_ctl_info(dev_ctl); | |
148 | ||
149 | return NULL; | |
e27e3dac DT |
150 | } |
151 | EXPORT_SYMBOL_GPL(edac_device_alloc_ctl_info); | |
152 | ||
079708b9 DT |
153 | void edac_device_free_ctl_info(struct edac_device_ctl_info *ctl_info) |
154 | { | |
1c3631ff | 155 | edac_device_unregister_sysfs_main_kobj(ctl_info); |
e27e3dac | 156 | } |
079708b9 | 157 | EXPORT_SYMBOL_GPL(edac_device_free_ctl_info); |
e27e3dac DT |
158 | |
159 | /* | |
160 | * find_edac_device_by_dev | |
161 | * scans the edac_device list for a specific 'struct device *' | |
52490c8d DT |
162 | * |
163 | * lock to be held prior to call: device_ctls_mutex | |
164 | * | |
165 | * Return: | |
166 | * pointer to control structure managing 'dev' | |
167 | * NULL if not found on list | |
e27e3dac | 168 | */ |
079708b9 | 169 | static struct edac_device_ctl_info *find_edac_device_by_dev(struct device *dev) |
e27e3dac DT |
170 | { |
171 | struct edac_device_ctl_info *edac_dev; | |
172 | struct list_head *item; | |
173 | ||
956b9ba1 | 174 | edac_dbg(0, "\n"); |
e27e3dac DT |
175 | |
176 | list_for_each(item, &edac_device_list) { | |
177 | edac_dev = list_entry(item, struct edac_device_ctl_info, link); | |
178 | ||
179 | if (edac_dev->dev == dev) | |
180 | return edac_dev; | |
181 | } | |
182 | ||
183 | return NULL; | |
184 | } | |
185 | ||
186 | /* | |
187 | * add_edac_dev_to_global_list | |
188 | * Before calling this function, caller must | |
189 | * assign a unique value to edac_dev->dev_idx. | |
52490c8d DT |
190 | * |
191 | * lock to be held prior to call: device_ctls_mutex | |
192 | * | |
e27e3dac DT |
193 | * Return: |
194 | * 0 on success | |
195 | * 1 on failure. | |
196 | */ | |
079708b9 | 197 | static int add_edac_dev_to_global_list(struct edac_device_ctl_info *edac_dev) |
e27e3dac DT |
198 | { |
199 | struct list_head *item, *insert_before; | |
200 | struct edac_device_ctl_info *rover; | |
201 | ||
202 | insert_before = &edac_device_list; | |
203 | ||
204 | /* Determine if already on the list */ | |
52490c8d DT |
205 | rover = find_edac_device_by_dev(edac_dev->dev); |
206 | if (unlikely(rover != NULL)) | |
e27e3dac DT |
207 | goto fail0; |
208 | ||
209 | /* Insert in ascending order by 'dev_idx', so find position */ | |
210 | list_for_each(item, &edac_device_list) { | |
211 | rover = list_entry(item, struct edac_device_ctl_info, link); | |
212 | ||
213 | if (rover->dev_idx >= edac_dev->dev_idx) { | |
214 | if (unlikely(rover->dev_idx == edac_dev->dev_idx)) | |
215 | goto fail1; | |
216 | ||
217 | insert_before = item; | |
218 | break; | |
219 | } | |
220 | } | |
221 | ||
222 | list_add_tail_rcu(&edac_dev->link, insert_before); | |
223 | return 0; | |
224 | ||
052dfb45 | 225 | fail0: |
e27e3dac | 226 | edac_printk(KERN_WARNING, EDAC_MC, |
052dfb45 | 227 | "%s (%s) %s %s already assigned %d\n", |
281efb17 | 228 | dev_name(rover->dev), edac_dev_name(rover), |
052dfb45 | 229 | rover->mod_name, rover->ctl_name, rover->dev_idx); |
e27e3dac DT |
230 | return 1; |
231 | ||
052dfb45 | 232 | fail1: |
e27e3dac | 233 | edac_printk(KERN_WARNING, EDAC_MC, |
052dfb45 DT |
234 | "bug in low-level driver: attempt to assign\n" |
235 | " duplicate dev_idx %d in %s()\n", rover->dev_idx, | |
236 | __func__); | |
e27e3dac DT |
237 | return 1; |
238 | } | |
239 | ||
e27e3dac DT |
240 | /* |
241 | * del_edac_device_from_global_list | |
242 | */ | |
079708b9 | 243 | static void del_edac_device_from_global_list(struct edac_device_ctl_info |
052dfb45 | 244 | *edac_device) |
e27e3dac DT |
245 | { |
246 | list_del_rcu(&edac_device->link); | |
e2e77098 LJ |
247 | |
248 | /* these are for safe removal of devices from global list while | |
249 | * NMI handlers may be traversing list | |
250 | */ | |
251 | synchronize_rcu(); | |
252 | INIT_LIST_HEAD(&edac_device->link); | |
e27e3dac DT |
253 | } |
254 | ||
e27e3dac | 255 | /* |
81d87cb1 | 256 | * edac_device_workq_function |
e27e3dac | 257 | * performs the operation scheduled by a workq request |
bf52fa4a DT |
258 | * |
259 | * this workq is embedded within an edac_device_ctl_info | |
260 | * structure, that needs to be polled for possible error events. | |
261 | * | |
262 | * This operation is to acquire the list mutex lock | |
f70d4a95 | 263 | * (thus preventing insertation or deletion) |
bf52fa4a DT |
264 | * and then call the device's poll function IFF this device is |
265 | * running polled and there is a poll function defined. | |
e27e3dac | 266 | */ |
81d87cb1 | 267 | static void edac_device_workq_function(struct work_struct *work_req) |
e27e3dac | 268 | { |
fbeb4384 | 269 | struct delayed_work *d_work = to_delayed_work(work_req); |
079708b9 | 270 | struct edac_device_ctl_info *edac_dev = to_edac_device_ctl_work(d_work); |
e27e3dac | 271 | |
0ca84761 | 272 | mutex_lock(&device_ctls_mutex); |
e27e3dac | 273 | |
d519c8d9 HC |
274 | /* If we are being removed, bail out immediately */ |
275 | if (edac_dev->op_state == OP_OFFLINE) { | |
276 | mutex_unlock(&device_ctls_mutex); | |
277 | return; | |
278 | } | |
279 | ||
e27e3dac DT |
280 | /* Only poll controllers that are running polled and have a check */ |
281 | if ((edac_dev->op_state == OP_RUNNING_POLL) && | |
052dfb45 DT |
282 | (edac_dev->edac_check != NULL)) { |
283 | edac_dev->edac_check(edac_dev); | |
e27e3dac DT |
284 | } |
285 | ||
0ca84761 | 286 | mutex_unlock(&device_ctls_mutex); |
e27e3dac | 287 | |
bf52fa4a DT |
288 | /* Reschedule the workq for the next time period to start again |
289 | * if the number of msec is for 1 sec, then adjust to the next | |
15ed103a | 290 | * whole one second to save timers firing all over the period |
bf52fa4a DT |
291 | * between integral seconds |
292 | */ | |
cec669ff | 293 | if (edac_dev->poll_msec == DEFAULT_POLL_INTERVAL) |
c4cf3b45 | 294 | edac_queue_work(&edac_dev->work, round_jiffies_relative(edac_dev->delay)); |
bf52fa4a | 295 | else |
c4cf3b45 | 296 | edac_queue_work(&edac_dev->work, edac_dev->delay); |
e27e3dac DT |
297 | } |
298 | ||
299 | /* | |
81d87cb1 | 300 | * edac_device_workq_setup |
e27e3dac DT |
301 | * initialize a workq item for this edac_device instance |
302 | * passing in the new delay period in msec | |
303 | */ | |
e136fa01 BP |
304 | static void edac_device_workq_setup(struct edac_device_ctl_info *edac_dev, |
305 | unsigned msec) | |
e27e3dac | 306 | { |
956b9ba1 | 307 | edac_dbg(0, "\n"); |
e27e3dac | 308 | |
bf52fa4a DT |
309 | /* take the arg 'msec' and set it into the control structure |
310 | * to used in the time period calculation | |
311 | * then calc the number of jiffies that represents | |
312 | */ | |
e27e3dac | 313 | edac_dev->poll_msec = msec; |
bf52fa4a | 314 | edac_dev->delay = msecs_to_jiffies(msec); |
e27e3dac | 315 | |
81d87cb1 | 316 | INIT_DELAYED_WORK(&edac_dev->work, edac_device_workq_function); |
bf52fa4a DT |
317 | |
318 | /* optimize here for the 1 second case, which will be normal value, to | |
319 | * fire ON the 1 second time event. This helps reduce all sorts of | |
320 | * timers firing on sub-second basis, while they are happy | |
321 | * to fire together on the 1 second exactly | |
322 | */ | |
cec669ff | 323 | if (edac_dev->poll_msec == DEFAULT_POLL_INTERVAL) |
c4cf3b45 | 324 | edac_queue_work(&edac_dev->work, round_jiffies_relative(edac_dev->delay)); |
bf52fa4a | 325 | else |
c4cf3b45 | 326 | edac_queue_work(&edac_dev->work, edac_dev->delay); |
e27e3dac DT |
327 | } |
328 | ||
329 | /* | |
81d87cb1 | 330 | * edac_device_workq_teardown |
e27e3dac DT |
331 | * stop the workq processing on this edac_dev |
332 | */ | |
e136fa01 | 333 | static void edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev) |
e27e3dac | 334 | { |
881f0fce SB |
335 | if (!edac_dev->edac_check) |
336 | return; | |
337 | ||
fcd5c4dd BP |
338 | edac_dev->op_state = OP_OFFLINE; |
339 | ||
c4cf3b45 | 340 | edac_stop_work(&edac_dev->work); |
e27e3dac DT |
341 | } |
342 | ||
343 | /* | |
344 | * edac_device_reset_delay_period | |
bf52fa4a DT |
345 | * |
346 | * need to stop any outstanding workq queued up at this time | |
347 | * because we will be resetting the sleep time. | |
348 | * Then restart the workq on the new delay | |
e27e3dac | 349 | */ |
079708b9 | 350 | void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev, |
e8407743 | 351 | unsigned long msec) |
e27e3dac | 352 | { |
e8407743 EF |
353 | edac_dev->poll_msec = msec; |
354 | edac_dev->delay = msecs_to_jiffies(msec); | |
e27e3dac | 355 | |
e8407743 | 356 | /* See comment in edac_device_workq_setup() above */ |
cec669ff | 357 | if (edac_dev->poll_msec == DEFAULT_POLL_INTERVAL) |
e8407743 EF |
358 | edac_mod_work(&edac_dev->work, round_jiffies_relative(edac_dev->delay)); |
359 | else | |
360 | edac_mod_work(&edac_dev->work, edac_dev->delay); | |
e27e3dac DT |
361 | } |
362 | ||
1dc9b70d HC |
363 | int edac_device_alloc_index(void) |
364 | { | |
365 | static atomic_t device_indexes = ATOMIC_INIT(0); | |
366 | ||
367 | return atomic_inc_return(&device_indexes) - 1; | |
368 | } | |
369 | EXPORT_SYMBOL_GPL(edac_device_alloc_index); | |
370 | ||
d45e7823 | 371 | int edac_device_add_device(struct edac_device_ctl_info *edac_dev) |
e27e3dac | 372 | { |
956b9ba1 | 373 | edac_dbg(0, "\n"); |
e27e3dac | 374 | |
e27e3dac DT |
375 | #ifdef CONFIG_EDAC_DEBUG |
376 | if (edac_debug_level >= 3) | |
377 | edac_device_dump_device(edac_dev); | |
378 | #endif | |
0ca84761 | 379 | mutex_lock(&device_ctls_mutex); |
e27e3dac DT |
380 | |
381 | if (add_edac_dev_to_global_list(edac_dev)) | |
382 | goto fail0; | |
383 | ||
384 | /* set load time so that error rate can be tracked */ | |
385 | edac_dev->start_time = jiffies; | |
386 | ||
387 | /* create this instance's sysfs entries */ | |
388 | if (edac_device_create_sysfs(edac_dev)) { | |
389 | edac_device_printk(edac_dev, KERN_WARNING, | |
052dfb45 | 390 | "failed to create sysfs device\n"); |
e27e3dac DT |
391 | goto fail1; |
392 | } | |
393 | ||
394 | /* If there IS a check routine, then we are running POLLED */ | |
395 | if (edac_dev->edac_check != NULL) { | |
396 | /* This instance is NOW RUNNING */ | |
397 | edac_dev->op_state = OP_RUNNING_POLL; | |
398 | ||
cec669ff | 399 | edac_device_workq_setup(edac_dev, edac_dev->poll_msec ?: DEFAULT_POLL_INTERVAL); |
e27e3dac DT |
400 | } else { |
401 | edac_dev->op_state = OP_RUNNING_INTERRUPT; | |
402 | } | |
403 | ||
e27e3dac DT |
404 | /* Report action taken */ |
405 | edac_device_printk(edac_dev, KERN_INFO, | |
7270a608 RR |
406 | "Giving out device to module %s controller %s: DEV %s (%s)\n", |
407 | edac_dev->mod_name, edac_dev->ctl_name, edac_dev->dev_name, | |
408 | edac_op_state_to_string(edac_dev->op_state)); | |
e27e3dac | 409 | |
0ca84761 | 410 | mutex_unlock(&device_ctls_mutex); |
e27e3dac DT |
411 | return 0; |
412 | ||
052dfb45 | 413 | fail1: |
e27e3dac DT |
414 | /* Some error, so remove the entry from the lsit */ |
415 | del_edac_device_from_global_list(edac_dev); | |
416 | ||
052dfb45 | 417 | fail0: |
0ca84761 | 418 | mutex_unlock(&device_ctls_mutex); |
e27e3dac DT |
419 | return 1; |
420 | } | |
421 | EXPORT_SYMBOL_GPL(edac_device_add_device); | |
422 | ||
079708b9 | 423 | struct edac_device_ctl_info *edac_device_del_device(struct device *dev) |
e27e3dac DT |
424 | { |
425 | struct edac_device_ctl_info *edac_dev; | |
426 | ||
956b9ba1 | 427 | edac_dbg(0, "\n"); |
e27e3dac | 428 | |
0ca84761 | 429 | mutex_lock(&device_ctls_mutex); |
e27e3dac | 430 | |
52490c8d DT |
431 | /* Find the structure on the list, if not there, then leave */ |
432 | edac_dev = find_edac_device_by_dev(dev); | |
433 | if (edac_dev == NULL) { | |
0ca84761 | 434 | mutex_unlock(&device_ctls_mutex); |
e27e3dac DT |
435 | return NULL; |
436 | } | |
437 | ||
438 | /* mark this instance as OFFLINE */ | |
439 | edac_dev->op_state = OP_OFFLINE; | |
440 | ||
e27e3dac DT |
441 | /* deregister from global list */ |
442 | del_edac_device_from_global_list(edac_dev); | |
443 | ||
0ca84761 | 444 | mutex_unlock(&device_ctls_mutex); |
e27e3dac | 445 | |
d519c8d9 HC |
446 | /* clear workq processing on this instance */ |
447 | edac_device_workq_teardown(edac_dev); | |
448 | ||
1c3631ff DT |
449 | /* Tear down the sysfs entries for this instance */ |
450 | edac_device_remove_sysfs(edac_dev); | |
451 | ||
e27e3dac | 452 | edac_printk(KERN_INFO, EDAC_MC, |
052dfb45 DT |
453 | "Removed device %d for %s %s: DEV %s\n", |
454 | edac_dev->dev_idx, | |
17aa7e03 | 455 | edac_dev->mod_name, edac_dev->ctl_name, edac_dev_name(edac_dev)); |
e27e3dac DT |
456 | |
457 | return edac_dev; | |
458 | } | |
079708b9 | 459 | EXPORT_SYMBOL_GPL(edac_device_del_device); |
e27e3dac DT |
460 | |
461 | static inline int edac_device_get_log_ce(struct edac_device_ctl_info *edac_dev) | |
462 | { | |
463 | return edac_dev->log_ce; | |
464 | } | |
465 | ||
466 | static inline int edac_device_get_log_ue(struct edac_device_ctl_info *edac_dev) | |
467 | { | |
468 | return edac_dev->log_ue; | |
469 | } | |
470 | ||
079708b9 | 471 | static inline int edac_device_get_panic_on_ue(struct edac_device_ctl_info |
052dfb45 | 472 | *edac_dev) |
e27e3dac DT |
473 | { |
474 | return edac_dev->panic_on_ue; | |
475 | } | |
476 | ||
9816b4af HH |
477 | void edac_device_handle_ce_count(struct edac_device_ctl_info *edac_dev, |
478 | unsigned int count, int inst_nr, int block_nr, | |
479 | const char *msg) | |
e27e3dac DT |
480 | { |
481 | struct edac_device_instance *instance; | |
482 | struct edac_device_block *block = NULL; | |
483 | ||
9816b4af HH |
484 | if (!count) |
485 | return; | |
486 | ||
e27e3dac DT |
487 | if ((inst_nr >= edac_dev->nr_instances) || (inst_nr < 0)) { |
488 | edac_device_printk(edac_dev, KERN_ERR, | |
052dfb45 DT |
489 | "INTERNAL ERROR: 'instance' out of range " |
490 | "(%d >= %d)\n", inst_nr, | |
491 | edac_dev->nr_instances); | |
e27e3dac DT |
492 | return; |
493 | } | |
494 | ||
495 | instance = edac_dev->instances + inst_nr; | |
496 | ||
497 | if ((block_nr >= instance->nr_blocks) || (block_nr < 0)) { | |
498 | edac_device_printk(edac_dev, KERN_ERR, | |
052dfb45 DT |
499 | "INTERNAL ERROR: instance %d 'block' " |
500 | "out of range (%d >= %d)\n", | |
501 | inst_nr, block_nr, | |
502 | instance->nr_blocks); | |
e27e3dac DT |
503 | return; |
504 | } | |
505 | ||
506 | if (instance->nr_blocks > 0) { | |
507 | block = instance->blocks + block_nr; | |
9816b4af | 508 | block->counters.ce_count += count; |
e27e3dac DT |
509 | } |
510 | ||
25985edc | 511 | /* Propagate the count up the 'totals' tree */ |
9816b4af HH |
512 | instance->counters.ce_count += count; |
513 | edac_dev->counters.ce_count += count; | |
e27e3dac DT |
514 | |
515 | if (edac_device_get_log_ce(edac_dev)) | |
516 | edac_device_printk(edac_dev, KERN_WARNING, | |
9816b4af HH |
517 | "CE: %s instance: %s block: %s count: %d '%s'\n", |
518 | edac_dev->ctl_name, instance->name, | |
519 | block ? block->name : "N/A", count, msg); | |
e27e3dac | 520 | } |
9816b4af | 521 | EXPORT_SYMBOL_GPL(edac_device_handle_ce_count); |
e27e3dac | 522 | |
9816b4af HH |
523 | void edac_device_handle_ue_count(struct edac_device_ctl_info *edac_dev, |
524 | unsigned int count, int inst_nr, int block_nr, | |
525 | const char *msg) | |
e27e3dac DT |
526 | { |
527 | struct edac_device_instance *instance; | |
528 | struct edac_device_block *block = NULL; | |
529 | ||
9816b4af HH |
530 | if (!count) |
531 | return; | |
532 | ||
e27e3dac DT |
533 | if ((inst_nr >= edac_dev->nr_instances) || (inst_nr < 0)) { |
534 | edac_device_printk(edac_dev, KERN_ERR, | |
052dfb45 DT |
535 | "INTERNAL ERROR: 'instance' out of range " |
536 | "(%d >= %d)\n", inst_nr, | |
537 | edac_dev->nr_instances); | |
e27e3dac DT |
538 | return; |
539 | } | |
540 | ||
541 | instance = edac_dev->instances + inst_nr; | |
542 | ||
543 | if ((block_nr >= instance->nr_blocks) || (block_nr < 0)) { | |
544 | edac_device_printk(edac_dev, KERN_ERR, | |
052dfb45 DT |
545 | "INTERNAL ERROR: instance %d 'block' " |
546 | "out of range (%d >= %d)\n", | |
547 | inst_nr, block_nr, | |
548 | instance->nr_blocks); | |
e27e3dac DT |
549 | return; |
550 | } | |
551 | ||
552 | if (instance->nr_blocks > 0) { | |
553 | block = instance->blocks + block_nr; | |
9816b4af | 554 | block->counters.ue_count += count; |
e27e3dac DT |
555 | } |
556 | ||
25985edc | 557 | /* Propagate the count up the 'totals' tree */ |
9816b4af HH |
558 | instance->counters.ue_count += count; |
559 | edac_dev->counters.ue_count += count; | |
e27e3dac DT |
560 | |
561 | if (edac_device_get_log_ue(edac_dev)) | |
562 | edac_device_printk(edac_dev, KERN_EMERG, | |
9816b4af HH |
563 | "UE: %s instance: %s block: %s count: %d '%s'\n", |
564 | edac_dev->ctl_name, instance->name, | |
565 | block ? block->name : "N/A", count, msg); | |
e27e3dac DT |
566 | |
567 | if (edac_device_get_panic_on_ue(edac_dev)) | |
9816b4af HH |
568 | panic("EDAC %s: UE instance: %s block %s count: %d '%s'\n", |
569 | edac_dev->ctl_name, instance->name, | |
570 | block ? block->name : "N/A", count, msg); | |
e27e3dac | 571 | } |
9816b4af | 572 | EXPORT_SYMBOL_GPL(edac_device_handle_ue_count); |