blob: efb5d565078304c60ea096b84bf1ae2b9761e4a4 [file] [log] [blame]
Dave Jiang91b99042007-07-19 01:49:52 -07001/*
2 * EDAC PCI component
3 *
4 * Author: Dave Jiang <djiang@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 *
11 */
12#include <linux/module.h>
13#include <linux/types.h>
14#include <linux/smp.h>
15#include <linux/init.h>
16#include <linux/sysctl.h>
17#include <linux/highmem.h>
18#include <linux/timer.h>
19#include <linux/slab.h>
20#include <linux/spinlock.h>
21#include <linux/list.h>
22#include <linux/sysdev.h>
23#include <linux/ctype.h>
24#include <linux/workqueue.h>
25#include <asm/uaccess.h>
26#include <asm/page.h>
27
28#include "edac_core.h"
29#include "edac_module.h"
30
31static DEFINE_MUTEX(edac_pci_ctls_mutex);
Robert P. J. Dayff6ac2a2008-04-29 01:03:17 -070032static LIST_HEAD(edac_pci_list);
Harry Ciao8641a382009-04-02 16:58:47 -070033static atomic_t pci_indexes = ATOMIC_INIT(0);
Dave Jiang91b99042007-07-19 01:49:52 -070034
Dave Jiang91b99042007-07-19 01:49:52 -070035/*
Doug Thompsond4c14652007-07-26 10:41:15 -070036 * edac_pci_alloc_ctl_info
37 *
38 * The alloc() function for the 'edac_pci' control info
39 * structure. The chip driver will allocate one of these for each
40 * edac_pci it is going to control/register with the EDAC CORE.
Dave Jiang91b99042007-07-19 01:49:52 -070041 */
Douglas Thompson079708b2007-07-19 01:49:58 -070042struct edac_pci_ctl_info *edac_pci_alloc_ctl_info(unsigned int sz_pvt,
Douglas Thompson052dfb42007-07-19 01:50:13 -070043 const char *edac_pci_name)
Dave Jiang91b99042007-07-19 01:49:52 -070044{
45 struct edac_pci_ctl_info *pci;
46 void *pvt;
47 unsigned int size;
48
Doug Thompsond4c14652007-07-26 10:41:15 -070049 debugf1("%s()\n", __func__);
50
Dave Jiang91b99042007-07-19 01:49:52 -070051 pci = (struct edac_pci_ctl_info *)0;
52 pvt = edac_align_ptr(&pci[1], sz_pvt);
53 size = ((unsigned long)pvt) + sz_pvt;
54
Doug Thompsond4c14652007-07-26 10:41:15 -070055 /* Alloc the needed control struct memory */
56 pci = kzalloc(size, GFP_KERNEL);
57 if (pci == NULL)
Dave Jiang91b99042007-07-19 01:49:52 -070058 return NULL;
59
Doug Thompsond4c14652007-07-26 10:41:15 -070060 /* Now much private space */
Dave Jiang91b99042007-07-19 01:49:52 -070061 pvt = sz_pvt ? ((char *)pci) + ((unsigned long)pvt) : NULL;
62
63 pci->pvt_info = pvt;
Dave Jiang91b99042007-07-19 01:49:52 -070064 pci->op_state = OP_ALLOC;
65
Douglas Thompson079708b2007-07-19 01:49:58 -070066 snprintf(pci->name, strlen(edac_pci_name) + 1, "%s", edac_pci_name);
Dave Jiang91b99042007-07-19 01:49:52 -070067
68 return pci;
69}
70EXPORT_SYMBOL_GPL(edac_pci_alloc_ctl_info);
71
72/*
73 * edac_pci_free_ctl_info()
Doug Thompsond4c14652007-07-26 10:41:15 -070074 *
75 * Last action on the pci control structure.
76 *
Joe Perches6f042b52008-02-03 17:12:34 +020077 * call the remove sysfs information, which will unregister
Doug Thompsond4c14652007-07-26 10:41:15 -070078 * this control struct's kobj. When that kobj's ref count
79 * goes to zero, its release function will be call and then
80 * kfree() the memory.
Dave Jiang91b99042007-07-19 01:49:52 -070081 */
82void edac_pci_free_ctl_info(struct edac_pci_ctl_info *pci)
83{
Doug Thompsond4c14652007-07-26 10:41:15 -070084 debugf1("%s()\n", __func__);
Douglas Thompson079708b2007-07-19 01:49:58 -070085
Doug Thompsond4c14652007-07-26 10:41:15 -070086 edac_pci_remove_sysfs(pci);
87}
Dave Jiang91b99042007-07-19 01:49:52 -070088EXPORT_SYMBOL_GPL(edac_pci_free_ctl_info);
89
90/*
91 * find_edac_pci_by_dev()
92 * scans the edac_pci list for a specific 'struct device *'
Doug Thompsond4c14652007-07-26 10:41:15 -070093 *
94 * return NULL if not found, or return control struct pointer
Dave Jiang91b99042007-07-19 01:49:52 -070095 */
Douglas Thompson079708b2007-07-19 01:49:58 -070096static struct edac_pci_ctl_info *find_edac_pci_by_dev(struct device *dev)
Dave Jiang91b99042007-07-19 01:49:52 -070097{
98 struct edac_pci_ctl_info *pci;
99 struct list_head *item;
100
Doug Thompsond4c14652007-07-26 10:41:15 -0700101 debugf1("%s()\n", __func__);
Dave Jiang91b99042007-07-19 01:49:52 -0700102
103 list_for_each(item, &edac_pci_list) {
104 pci = list_entry(item, struct edac_pci_ctl_info, link);
105
106 if (pci->dev == dev)
107 return pci;
108 }
109
110 return NULL;
111}
112
113/*
114 * add_edac_pci_to_global_list
115 * Before calling this function, caller must assign a unique value to
116 * edac_dev->pci_idx.
117 * Return:
118 * 0 on success
119 * 1 on failure
120 */
121static int add_edac_pci_to_global_list(struct edac_pci_ctl_info *pci)
122{
123 struct list_head *item, *insert_before;
124 struct edac_pci_ctl_info *rover;
125
Doug Thompsond4c14652007-07-26 10:41:15 -0700126 debugf1("%s()\n", __func__);
127
Dave Jiang91b99042007-07-19 01:49:52 -0700128 insert_before = &edac_pci_list;
129
130 /* Determine if already on the list */
Doug Thompsond4c14652007-07-26 10:41:15 -0700131 rover = find_edac_pci_by_dev(pci->dev);
132 if (unlikely(rover != NULL))
Dave Jiang91b99042007-07-19 01:49:52 -0700133 goto fail0;
134
135 /* Insert in ascending order by 'pci_idx', so find position */
136 list_for_each(item, &edac_pci_list) {
137 rover = list_entry(item, struct edac_pci_ctl_info, link);
138
139 if (rover->pci_idx >= pci->pci_idx) {
140 if (unlikely(rover->pci_idx == pci->pci_idx))
141 goto fail1;
142
143 insert_before = item;
144 break;
145 }
146 }
147
148 list_add_tail_rcu(&pci->link, insert_before);
149 return 0;
150
Douglas Thompson052dfb42007-07-19 01:50:13 -0700151fail0:
Dave Jiang91b99042007-07-19 01:49:52 -0700152 edac_printk(KERN_WARNING, EDAC_PCI,
Douglas Thompson052dfb42007-07-19 01:50:13 -0700153 "%s (%s) %s %s already assigned %d\n",
Kay Sievers281efb12009-01-06 14:42:57 -0800154 dev_name(rover->dev), edac_dev_name(rover),
Douglas Thompson052dfb42007-07-19 01:50:13 -0700155 rover->mod_name, rover->ctl_name, rover->pci_idx);
Dave Jiang91b99042007-07-19 01:49:52 -0700156 return 1;
157
Douglas Thompson052dfb42007-07-19 01:50:13 -0700158fail1:
Dave Jiang91b99042007-07-19 01:49:52 -0700159 edac_printk(KERN_WARNING, EDAC_PCI,
Douglas Thompson052dfb42007-07-19 01:50:13 -0700160 "but in low-level driver: attempt to assign\n"
161 "\tduplicate pci_idx %d in %s()\n", rover->pci_idx,
162 __func__);
Dave Jiang91b99042007-07-19 01:49:52 -0700163 return 1;
164}
165
166/*
167 * complete_edac_pci_list_del
Doug Thompsond4c14652007-07-26 10:41:15 -0700168 *
169 * RCU completion callback to indicate item is deleted
Dave Jiang91b99042007-07-19 01:49:52 -0700170 */
171static void complete_edac_pci_list_del(struct rcu_head *head)
172{
173 struct edac_pci_ctl_info *pci;
174
175 pci = container_of(head, struct edac_pci_ctl_info, rcu);
176 INIT_LIST_HEAD(&pci->link);
Dave Jiang91b99042007-07-19 01:49:52 -0700177}
178
179/*
180 * del_edac_pci_from_global_list
Doug Thompsond4c14652007-07-26 10:41:15 -0700181 *
182 * remove the PCI control struct from the global list
Dave Jiang91b99042007-07-19 01:49:52 -0700183 */
184static void del_edac_pci_from_global_list(struct edac_pci_ctl_info *pci)
185{
186 list_del_rcu(&pci->link);
Dave Jiang91b99042007-07-19 01:49:52 -0700187 call_rcu(&pci->rcu, complete_edac_pci_list_del);
Jesper Dangaard Brouer458e5ff2009-09-23 15:57:29 -0700188 rcu_barrier();
Dave Jiang91b99042007-07-19 01:49:52 -0700189}
190
Adrian Bunk1a450272008-04-29 01:03:18 -0700191#if 0
192/* Older code, but might use in the future */
193
Dave Jiang91b99042007-07-19 01:49:52 -0700194/*
195 * edac_pci_find()
196 * Search for an edac_pci_ctl_info structure whose index is 'idx'
197 *
198 * If found, return a pointer to the structure
199 * Else return NULL.
200 *
201 * Caller must hold pci_ctls_mutex.
202 */
Douglas Thompson079708b2007-07-19 01:49:58 -0700203struct edac_pci_ctl_info *edac_pci_find(int idx)
Dave Jiang91b99042007-07-19 01:49:52 -0700204{
205 struct list_head *item;
206 struct edac_pci_ctl_info *pci;
207
208 /* Iterage over list, looking for exact match of ID */
209 list_for_each(item, &edac_pci_list) {
210 pci = list_entry(item, struct edac_pci_ctl_info, link);
211
212 if (pci->pci_idx >= idx) {
213 if (pci->pci_idx == idx)
214 return pci;
215
Douglas Thompson079708b2007-07-19 01:49:58 -0700216 /* not on list, so terminate early */
Dave Jiang91b99042007-07-19 01:49:52 -0700217 break;
218 }
219 }
220
221 return NULL;
222}
223EXPORT_SYMBOL_GPL(edac_pci_find);
Adrian Bunk1a450272008-04-29 01:03:18 -0700224#endif
Dave Jiang91b99042007-07-19 01:49:52 -0700225
226/*
227 * edac_pci_workq_function()
Doug Thompsond4c14652007-07-26 10:41:15 -0700228 *
229 * periodic function that performs the operation
230 * scheduled by a workq request, for a given PCI control struct
Dave Jiang91b99042007-07-19 01:49:52 -0700231 */
Dave Jiang91b99042007-07-19 01:49:52 -0700232static void edac_pci_workq_function(struct work_struct *work_req)
233{
Jean Delvarefbeb4382009-04-13 14:40:21 -0700234 struct delayed_work *d_work = to_delayed_work(work_req);
Dave Jiang91b99042007-07-19 01:49:52 -0700235 struct edac_pci_ctl_info *pci = to_edac_pci_ctl_work(d_work);
Doug Thompsond4c14652007-07-26 10:41:15 -0700236 int msec;
237 unsigned long delay;
Dave Jiang91b99042007-07-19 01:49:52 -0700238
Doug Thompsond4c14652007-07-26 10:41:15 -0700239 debugf3("%s() checking\n", __func__);
Dave Jiang91b99042007-07-19 01:49:52 -0700240
Doug Thompsond4c14652007-07-26 10:41:15 -0700241 mutex_lock(&edac_pci_ctls_mutex);
Dave Jiang91b99042007-07-19 01:49:52 -0700242
Doug Thompsond4c14652007-07-26 10:41:15 -0700243 if (pci->op_state == OP_RUNNING_POLL) {
244 /* we might be in POLL mode, but there may NOT be a poll func
245 */
246 if ((pci->edac_check != NULL) && edac_pci_get_check_errors())
247 pci->edac_check(pci);
Dave Jiang91b99042007-07-19 01:49:52 -0700248
Doug Thompsond4c14652007-07-26 10:41:15 -0700249 /* if we are on a one second period, then use round */
250 msec = edac_pci_get_poll_msec();
251 if (msec == 1000)
Anton Blanchardc2ae24c2008-02-07 00:14:51 -0800252 delay = round_jiffies_relative(msecs_to_jiffies(msec));
Doug Thompsond4c14652007-07-26 10:41:15 -0700253 else
254 delay = msecs_to_jiffies(msec);
255
256 /* Reschedule only if we are in POLL mode */
257 queue_delayed_work(edac_workqueue, &pci->work, delay);
258 }
259
260 mutex_unlock(&edac_pci_ctls_mutex);
Dave Jiang91b99042007-07-19 01:49:52 -0700261}
262
263/*
264 * edac_pci_workq_setup()
265 * initialize a workq item for this edac_pci instance
266 * passing in the new delay period in msec
Doug Thompsond4c14652007-07-26 10:41:15 -0700267 *
268 * locking model:
269 * called when 'edac_pci_ctls_mutex' is locked
Dave Jiang91b99042007-07-19 01:49:52 -0700270 */
271static void edac_pci_workq_setup(struct edac_pci_ctl_info *pci,
Douglas Thompson079708b2007-07-19 01:49:58 -0700272 unsigned int msec)
Dave Jiang91b99042007-07-19 01:49:52 -0700273{
274 debugf0("%s()\n", __func__);
275
Dave Jiang91b99042007-07-19 01:49:52 -0700276 INIT_DELAYED_WORK(&pci->work, edac_pci_workq_function);
Dave Jiang4de78c62007-07-19 01:49:54 -0700277 queue_delayed_work(edac_workqueue, &pci->work,
Douglas Thompson052dfb42007-07-19 01:50:13 -0700278 msecs_to_jiffies(edac_pci_get_poll_msec()));
Dave Jiang91b99042007-07-19 01:49:52 -0700279}
280
281/*
282 * edac_pci_workq_teardown()
283 * stop the workq processing on this edac_pci instance
284 */
285static void edac_pci_workq_teardown(struct edac_pci_ctl_info *pci)
286{
287 int status;
288
Doug Thompsond4c14652007-07-26 10:41:15 -0700289 debugf0("%s()\n", __func__);
290
Dave Jiang91b99042007-07-19 01:49:52 -0700291 status = cancel_delayed_work(&pci->work);
292 if (status == 0)
293 flush_workqueue(edac_workqueue);
294}
295
296/*
297 * edac_pci_reset_delay_period
Doug Thompsond4c14652007-07-26 10:41:15 -0700298 *
299 * called with a new period value for the workq period
300 * a) stop current workq timer
301 * b) restart workq timer with new value
Dave Jiang91b99042007-07-19 01:49:52 -0700302 */
303void edac_pci_reset_delay_period(struct edac_pci_ctl_info *pci,
Douglas Thompson079708b2007-07-19 01:49:58 -0700304 unsigned long value)
Dave Jiang91b99042007-07-19 01:49:52 -0700305{
Doug Thompsond4c14652007-07-26 10:41:15 -0700306 debugf0("%s()\n", __func__);
Dave Jiang91b99042007-07-19 01:49:52 -0700307
308 edac_pci_workq_teardown(pci);
309
Doug Thompsond4c14652007-07-26 10:41:15 -0700310 /* need to lock for the setup */
311 mutex_lock(&edac_pci_ctls_mutex);
312
Dave Jiang91b99042007-07-19 01:49:52 -0700313 edac_pci_workq_setup(pci, value);
314
Doug Thompsond4c14652007-07-26 10:41:15 -0700315 mutex_unlock(&edac_pci_ctls_mutex);
Dave Jiang91b99042007-07-19 01:49:52 -0700316}
317EXPORT_SYMBOL_GPL(edac_pci_reset_delay_period);
318
319/*
Harry Ciao8641a382009-04-02 16:58:47 -0700320 * edac_pci_alloc_index: Allocate a unique PCI index number
321 *
322 * Return:
323 * allocated index number
324 *
325 */
326int edac_pci_alloc_index(void)
327{
328 return atomic_inc_return(&pci_indexes) - 1;
329}
330EXPORT_SYMBOL_GPL(edac_pci_alloc_index);
331
332/*
Dave Jiang91b99042007-07-19 01:49:52 -0700333 * edac_pci_add_device: Insert the 'edac_dev' structure into the
334 * edac_pci global list and create sysfs entries associated with
335 * edac_pci structure.
336 * @pci: pointer to the edac_device structure to be added to the list
337 * @edac_idx: A unique numeric identifier to be assigned to the
338 * 'edac_pci' structure.
339 *
340 * Return:
341 * 0 Success
342 * !0 Failure
343 */
344int edac_pci_add_device(struct edac_pci_ctl_info *pci, int edac_idx)
345{
346 debugf0("%s()\n", __func__);
347
348 pci->pci_idx = edac_idx;
Doug Thompsond4c14652007-07-26 10:41:15 -0700349 pci->start_time = jiffies;
Dave Jiang91b99042007-07-19 01:49:52 -0700350
Doug Thompsond4c14652007-07-26 10:41:15 -0700351 mutex_lock(&edac_pci_ctls_mutex);
Dave Jiang91b99042007-07-19 01:49:52 -0700352
353 if (add_edac_pci_to_global_list(pci))
354 goto fail0;
355
Dave Jiang91b99042007-07-19 01:49:52 -0700356 if (edac_pci_create_sysfs(pci)) {
357 edac_pci_printk(pci, KERN_WARNING,
358 "failed to create sysfs pci\n");
359 goto fail1;
360 }
361
362 if (pci->edac_check != NULL) {
363 pci->op_state = OP_RUNNING_POLL;
364
365 edac_pci_workq_setup(pci, 1000);
366 } else {
367 pci->op_state = OP_RUNNING_INTERRUPT;
368 }
369
370 edac_pci_printk(pci, KERN_INFO,
Douglas Thompson079708b2007-07-19 01:49:58 -0700371 "Giving out device to module '%s' controller '%s':"
372 " DEV '%s' (%s)\n",
373 pci->mod_name,
374 pci->ctl_name,
Stephen Rothwell17aa7e02008-05-05 13:54:19 +1000375 edac_dev_name(pci), edac_op_state_to_string(pci->op_state));
Dave Jiang91b99042007-07-19 01:49:52 -0700376
Doug Thompsond4c14652007-07-26 10:41:15 -0700377 mutex_unlock(&edac_pci_ctls_mutex);
Dave Jiang91b99042007-07-19 01:49:52 -0700378 return 0;
379
Doug Thompsond4c14652007-07-26 10:41:15 -0700380 /* error unwind stack */
Douglas Thompson052dfb42007-07-19 01:50:13 -0700381fail1:
Dave Jiang91b99042007-07-19 01:49:52 -0700382 del_edac_pci_from_global_list(pci);
Douglas Thompson052dfb42007-07-19 01:50:13 -0700383fail0:
Doug Thompsond4c14652007-07-26 10:41:15 -0700384 mutex_unlock(&edac_pci_ctls_mutex);
Dave Jiang91b99042007-07-19 01:49:52 -0700385 return 1;
386}
387EXPORT_SYMBOL_GPL(edac_pci_add_device);
388
389/*
390 * edac_pci_del_device()
391 * Remove sysfs entries for specified edac_pci structure and
392 * then remove edac_pci structure from global list
393 *
394 * @dev:
395 * Pointer to 'struct device' representing edac_pci structure
396 * to remove
397 *
398 * Return:
399 * Pointer to removed edac_pci structure,
400 * or NULL if device not found
401 */
Douglas Thompson079708b2007-07-19 01:49:58 -0700402struct edac_pci_ctl_info *edac_pci_del_device(struct device *dev)
Dave Jiang91b99042007-07-19 01:49:52 -0700403{
404 struct edac_pci_ctl_info *pci;
405
406 debugf0("%s()\n", __func__);
407
Doug Thompsond4c14652007-07-26 10:41:15 -0700408 mutex_lock(&edac_pci_ctls_mutex);
Dave Jiang91b99042007-07-19 01:49:52 -0700409
Doug Thompsond4c14652007-07-26 10:41:15 -0700410 /* ensure the control struct is on the global list
411 * if not, then leave
412 */
413 pci = find_edac_pci_by_dev(dev);
414 if (pci == NULL) {
415 mutex_unlock(&edac_pci_ctls_mutex);
Dave Jiang91b99042007-07-19 01:49:52 -0700416 return NULL;
417 }
418
419 pci->op_state = OP_OFFLINE;
420
Dave Jiang91b99042007-07-19 01:49:52 -0700421 del_edac_pci_from_global_list(pci);
422
Doug Thompsond4c14652007-07-26 10:41:15 -0700423 mutex_unlock(&edac_pci_ctls_mutex);
424
425 /* stop the workq timer */
426 edac_pci_workq_teardown(pci);
Dave Jiang91b99042007-07-19 01:49:52 -0700427
428 edac_printk(KERN_INFO, EDAC_PCI,
Douglas Thompson052dfb42007-07-19 01:50:13 -0700429 "Removed device %d for %s %s: DEV %s\n",
Stephen Rothwell17aa7e02008-05-05 13:54:19 +1000430 pci->pci_idx, pci->mod_name, pci->ctl_name, edac_dev_name(pci));
Dave Jiang91b99042007-07-19 01:49:52 -0700431
432 return pci;
433}
434EXPORT_SYMBOL_GPL(edac_pci_del_device);
435
Doug Thompsond4c14652007-07-26 10:41:15 -0700436/*
437 * edac_pci_generic_check
438 *
439 * a Generic parity check API
440 */
Adrian Bunk1a450272008-04-29 01:03:18 -0700441static void edac_pci_generic_check(struct edac_pci_ctl_info *pci)
Dave Jiang91b99042007-07-19 01:49:52 -0700442{
Doug Thompsond4c14652007-07-26 10:41:15 -0700443 debugf4("%s()\n", __func__);
Dave Jiang91b99042007-07-19 01:49:52 -0700444 edac_pci_do_parity_check();
445}
446
Doug Thompsond4c14652007-07-26 10:41:15 -0700447/* free running instance index counter */
Douglas Thompsonf0440912007-07-19 01:50:19 -0700448static int edac_pci_idx;
Dave Jiang91b99042007-07-19 01:49:52 -0700449#define EDAC_PCI_GENCTL_NAME "EDAC PCI controller"
450
451struct edac_pci_gen_data {
452 int edac_idx;
453};
454
Doug Thompsond4c14652007-07-26 10:41:15 -0700455/*
456 * edac_pci_create_generic_ctl
457 *
458 * A generic constructor for a PCI parity polling device
459 * Some systems have more than one domain of PCI busses.
460 * For systems with one domain, then this API will
461 * provide for a generic poller.
462 *
463 * This routine calls the edac_pci_alloc_ctl_info() for
464 * the generic device, with default values
465 */
Douglas Thompson079708b2007-07-19 01:49:58 -0700466struct edac_pci_ctl_info *edac_pci_create_generic_ctl(struct device *dev,
Douglas Thompson052dfb42007-07-19 01:50:13 -0700467 const char *mod_name)
Dave Jiang91b99042007-07-19 01:49:52 -0700468{
469 struct edac_pci_ctl_info *pci;
470 struct edac_pci_gen_data *pdata;
471
472 pci = edac_pci_alloc_ctl_info(sizeof(*pdata), EDAC_PCI_GENCTL_NAME);
473 if (!pci)
474 return NULL;
475
476 pdata = pci->pvt_info;
477 pci->dev = dev;
478 dev_set_drvdata(pci->dev, pci);
479 pci->dev_name = pci_name(to_pci_dev(dev));
480
481 pci->mod_name = mod_name;
482 pci->ctl_name = EDAC_PCI_GENCTL_NAME;
483 pci->edac_check = edac_pci_generic_check;
484
485 pdata->edac_idx = edac_pci_idx++;
486
487 if (edac_pci_add_device(pci, pdata->edac_idx) > 0) {
488 debugf3("%s(): failed edac_pci_add_device()\n", __func__);
489 edac_pci_free_ctl_info(pci);
490 return NULL;
491 }
492
493 return pci;
494}
495EXPORT_SYMBOL_GPL(edac_pci_create_generic_ctl);
496
Doug Thompsond4c14652007-07-26 10:41:15 -0700497/*
498 * edac_pci_release_generic_ctl
499 *
500 * The release function of a generic EDAC PCI polling device
501 */
Dave Jiang91b99042007-07-19 01:49:52 -0700502void edac_pci_release_generic_ctl(struct edac_pci_ctl_info *pci)
503{
Doug Thompsond4c14652007-07-26 10:41:15 -0700504 debugf0("%s() pci mod=%s\n", __func__, pci->mod_name);
505
Dave Jiang91b99042007-07-19 01:49:52 -0700506 edac_pci_del_device(pci->dev);
507 edac_pci_free_ctl_info(pci);
508}
Dave Jiang91b99042007-07-19 01:49:52 -0700509EXPORT_SYMBOL_GPL(edac_pci_release_generic_ctl);