1
2
3
4
5#include <linux/init.h>
6#include <linux/kernel.h>
7#include <linux/moduleparam.h>
8#include <acpi/acpi_drivers.h>
9
10#define _COMPONENT ACPI_SYSTEM_COMPONENT
11ACPI_MODULE_NAME("sysfs");
12
13#define PREFIX "ACPI: "
14
15#ifdef CONFIG_ACPI_DEBUG
16
17
18
19
20
21
22
23
24
25
26struct acpi_dlayer {
27 const char *name;
28 unsigned long value;
29};
30struct acpi_dlevel {
31 const char *name;
32 unsigned long value;
33};
34#define ACPI_DEBUG_INIT(v) { .name = #v, .value = v }
35
36static const struct acpi_dlayer acpi_debug_layers[] = {
37 ACPI_DEBUG_INIT(ACPI_UTILITIES),
38 ACPI_DEBUG_INIT(ACPI_HARDWARE),
39 ACPI_DEBUG_INIT(ACPI_EVENTS),
40 ACPI_DEBUG_INIT(ACPI_TABLES),
41 ACPI_DEBUG_INIT(ACPI_NAMESPACE),
42 ACPI_DEBUG_INIT(ACPI_PARSER),
43 ACPI_DEBUG_INIT(ACPI_DISPATCHER),
44 ACPI_DEBUG_INIT(ACPI_EXECUTER),
45 ACPI_DEBUG_INIT(ACPI_RESOURCES),
46 ACPI_DEBUG_INIT(ACPI_CA_DEBUGGER),
47 ACPI_DEBUG_INIT(ACPI_OS_SERVICES),
48 ACPI_DEBUG_INIT(ACPI_CA_DISASSEMBLER),
49 ACPI_DEBUG_INIT(ACPI_COMPILER),
50 ACPI_DEBUG_INIT(ACPI_TOOLS),
51
52 ACPI_DEBUG_INIT(ACPI_BUS_COMPONENT),
53 ACPI_DEBUG_INIT(ACPI_AC_COMPONENT),
54 ACPI_DEBUG_INIT(ACPI_BATTERY_COMPONENT),
55 ACPI_DEBUG_INIT(ACPI_BUTTON_COMPONENT),
56 ACPI_DEBUG_INIT(ACPI_SBS_COMPONENT),
57 ACPI_DEBUG_INIT(ACPI_FAN_COMPONENT),
58 ACPI_DEBUG_INIT(ACPI_PCI_COMPONENT),
59 ACPI_DEBUG_INIT(ACPI_POWER_COMPONENT),
60 ACPI_DEBUG_INIT(ACPI_CONTAINER_COMPONENT),
61 ACPI_DEBUG_INIT(ACPI_SYSTEM_COMPONENT),
62 ACPI_DEBUG_INIT(ACPI_THERMAL_COMPONENT),
63 ACPI_DEBUG_INIT(ACPI_MEMORY_DEVICE_COMPONENT),
64 ACPI_DEBUG_INIT(ACPI_VIDEO_COMPONENT),
65 ACPI_DEBUG_INIT(ACPI_PROCESSOR_COMPONENT),
66};
67
68static const struct acpi_dlevel acpi_debug_levels[] = {
69 ACPI_DEBUG_INIT(ACPI_LV_INIT),
70 ACPI_DEBUG_INIT(ACPI_LV_DEBUG_OBJECT),
71 ACPI_DEBUG_INIT(ACPI_LV_INFO),
72
73 ACPI_DEBUG_INIT(ACPI_LV_INIT_NAMES),
74 ACPI_DEBUG_INIT(ACPI_LV_PARSE),
75 ACPI_DEBUG_INIT(ACPI_LV_LOAD),
76 ACPI_DEBUG_INIT(ACPI_LV_DISPATCH),
77 ACPI_DEBUG_INIT(ACPI_LV_EXEC),
78 ACPI_DEBUG_INIT(ACPI_LV_NAMES),
79 ACPI_DEBUG_INIT(ACPI_LV_OPREGION),
80 ACPI_DEBUG_INIT(ACPI_LV_BFIELD),
81 ACPI_DEBUG_INIT(ACPI_LV_TABLES),
82 ACPI_DEBUG_INIT(ACPI_LV_VALUES),
83 ACPI_DEBUG_INIT(ACPI_LV_OBJECTS),
84 ACPI_DEBUG_INIT(ACPI_LV_RESOURCES),
85 ACPI_DEBUG_INIT(ACPI_LV_USER_REQUESTS),
86 ACPI_DEBUG_INIT(ACPI_LV_PACKAGE),
87
88 ACPI_DEBUG_INIT(ACPI_LV_ALLOCATIONS),
89 ACPI_DEBUG_INIT(ACPI_LV_FUNCTIONS),
90 ACPI_DEBUG_INIT(ACPI_LV_OPTIMIZATIONS),
91
92 ACPI_DEBUG_INIT(ACPI_LV_MUTEX),
93 ACPI_DEBUG_INIT(ACPI_LV_THREADS),
94 ACPI_DEBUG_INIT(ACPI_LV_IO),
95 ACPI_DEBUG_INIT(ACPI_LV_INTERRUPTS),
96
97 ACPI_DEBUG_INIT(ACPI_LV_AML_DISASSEMBLE),
98 ACPI_DEBUG_INIT(ACPI_LV_VERBOSE_INFO),
99 ACPI_DEBUG_INIT(ACPI_LV_FULL_TABLES),
100 ACPI_DEBUG_INIT(ACPI_LV_EVENTS),
101};
102
103static int param_get_debug_layer(char *buffer, const struct kernel_param *kp)
104{
105 int result = 0;
106 int i;
107
108 result = sprintf(buffer, "%-25s\tHex SET\n", "Description");
109
110 for (i = 0; i < ARRAY_SIZE(acpi_debug_layers); i++) {
111 result += sprintf(buffer + result, "%-25s\t0x%08lX [%c]\n",
112 acpi_debug_layers[i].name,
113 acpi_debug_layers[i].value,
114 (acpi_dbg_layer & acpi_debug_layers[i].value)
115 ? '*' : ' ');
116 }
117 result +=
118 sprintf(buffer + result, "%-25s\t0x%08X [%c]\n", "ACPI_ALL_DRIVERS",
119 ACPI_ALL_DRIVERS,
120 (acpi_dbg_layer & ACPI_ALL_DRIVERS) ==
121 ACPI_ALL_DRIVERS ? '*' : (acpi_dbg_layer & ACPI_ALL_DRIVERS)
122 == 0 ? ' ' : '-');
123 result +=
124 sprintf(buffer + result,
125 "--\ndebug_layer = 0x%08X ( * = enabled)\n",
126 acpi_dbg_layer);
127
128 return result;
129}
130
131static int param_get_debug_level(char *buffer, const struct kernel_param *kp)
132{
133 int result = 0;
134 int i;
135
136 result = sprintf(buffer, "%-25s\tHex SET\n", "Description");
137
138 for (i = 0; i < ARRAY_SIZE(acpi_debug_levels); i++) {
139 result += sprintf(buffer + result, "%-25s\t0x%08lX [%c]\n",
140 acpi_debug_levels[i].name,
141 acpi_debug_levels[i].value,
142 (acpi_dbg_level & acpi_debug_levels[i].value)
143 ? '*' : ' ');
144 }
145 result +=
146 sprintf(buffer + result, "--\ndebug_level = 0x%08X (* = enabled)\n",
147 acpi_dbg_level);
148
149 return result;
150}
151
152static struct kernel_param_ops param_ops_debug_layer = {
153 .set = param_set_uint,
154 .get = param_get_debug_layer,
155};
156
157static struct kernel_param_ops param_ops_debug_level = {
158 .set = param_set_uint,
159 .get = param_get_debug_level,
160};
161
162module_param_cb(debug_layer, ¶m_ops_debug_layer, &acpi_dbg_layer, 0644);
163module_param_cb(debug_level, ¶m_ops_debug_level, &acpi_dbg_level, 0644);
164
165static char trace_method_name[6];
166module_param_string(trace_method_name, trace_method_name, 6, 0644);
167static unsigned int trace_debug_layer;
168module_param(trace_debug_layer, uint, 0644);
169static unsigned int trace_debug_level;
170module_param(trace_debug_level, uint, 0644);
171
172static int param_set_trace_state(const char *val, struct kernel_param *kp)
173{
174 int result = 0;
175
176 if (!strncmp(val, "enable", strlen("enable") - 1)) {
177 result = acpi_debug_trace(trace_method_name, trace_debug_level,
178 trace_debug_layer, 0);
179 if (result)
180 result = -EBUSY;
181 goto exit;
182 }
183
184 if (!strncmp(val, "disable", strlen("disable") - 1)) {
185 int name = 0;
186 result = acpi_debug_trace((char *)&name, trace_debug_level,
187 trace_debug_layer, 0);
188 if (result)
189 result = -EBUSY;
190 goto exit;
191 }
192
193 if (!strncmp(val, "1", 1)) {
194 result = acpi_debug_trace(trace_method_name, trace_debug_level,
195 trace_debug_layer, 1);
196 if (result)
197 result = -EBUSY;
198 goto exit;
199 }
200
201 result = -EINVAL;
202exit:
203 return result;
204}
205
206static int param_get_trace_state(char *buffer, struct kernel_param *kp)
207{
208 if (!acpi_gbl_trace_method_name)
209 return sprintf(buffer, "disable");
210 else {
211 if (acpi_gbl_trace_flags & 1)
212 return sprintf(buffer, "1");
213 else
214 return sprintf(buffer, "enable");
215 }
216 return 0;
217}
218
219module_param_call(trace_state, param_set_trace_state, param_get_trace_state,
220 NULL, 0644);
221#endif
222
223
224
225
226module_param_named(aml_debug_output, acpi_gbl_enable_aml_debug_object,
227 bool, 0644);
228MODULE_PARM_DESC(aml_debug_output,
229 "To enable/disable the ACPI Debug Object output.");
230
231
232static int param_get_acpica_version(char *buffer, struct kernel_param *kp)
233{
234 int result;
235
236 result = sprintf(buffer, "%x", ACPI_CA_VERSION);
237
238 return result;
239}
240
241module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
242
243
244
245
246
247
248
249static LIST_HEAD(acpi_table_attr_list);
250static struct kobject *tables_kobj;
251static struct kobject *dynamic_tables_kobj;
252
253struct acpi_table_attr {
254 struct bin_attribute attr;
255 char name[8];
256 int instance;
257 struct list_head node;
258};
259
260static ssize_t acpi_table_show(struct file *filp, struct kobject *kobj,
261 struct bin_attribute *bin_attr, char *buf,
262 loff_t offset, size_t count)
263{
264 struct acpi_table_attr *table_attr =
265 container_of(bin_attr, struct acpi_table_attr, attr);
266 struct acpi_table_header *table_header = NULL;
267 acpi_status status;
268 char name[ACPI_NAME_SIZE];
269
270 if (strncmp(table_attr->name, "NULL", 4))
271 memcpy(name, table_attr->name, ACPI_NAME_SIZE);
272 else
273 memcpy(name, "\0\0\0\0", 4);
274
275 status = acpi_get_table(name, table_attr->instance, &table_header);
276 if (ACPI_FAILURE(status))
277 return -ENODEV;
278
279 return memory_read_from_buffer(buf, count, &offset,
280 table_header, table_header->length);
281}
282
283static void acpi_table_attr_init(struct acpi_table_attr *table_attr,
284 struct acpi_table_header *table_header)
285{
286 struct acpi_table_header *header = NULL;
287 struct acpi_table_attr *attr = NULL;
288
289 sysfs_attr_init(&table_attr->attr.attr);
290 if (table_header->signature[0] != '\0')
291 memcpy(table_attr->name, table_header->signature,
292 ACPI_NAME_SIZE);
293 else
294 memcpy(table_attr->name, "NULL", 4);
295
296 list_for_each_entry(attr, &acpi_table_attr_list, node) {
297 if (!memcmp(table_attr->name, attr->name, ACPI_NAME_SIZE))
298 if (table_attr->instance < attr->instance)
299 table_attr->instance = attr->instance;
300 }
301 table_attr->instance++;
302
303 if (table_attr->instance > 1 || (table_attr->instance == 1 &&
304 !acpi_get_table
305 (table_header->signature, 2, &header)))
306 sprintf(table_attr->name + ACPI_NAME_SIZE, "%d",
307 table_attr->instance);
308
309 table_attr->attr.size = 0;
310 table_attr->attr.read = acpi_table_show;
311 table_attr->attr.attr.name = table_attr->name;
312 table_attr->attr.attr.mode = 0400;
313
314 return;
315}
316
317static acpi_status
318acpi_sysfs_table_handler(u32 event, void *table, void *context)
319{
320 struct acpi_table_attr *table_attr;
321
322 switch (event) {
323 case ACPI_TABLE_EVENT_LOAD:
324 table_attr =
325 kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL);
326 if (!table_attr)
327 return AE_NO_MEMORY;
328
329 acpi_table_attr_init(table_attr, table);
330 if (sysfs_create_bin_file(dynamic_tables_kobj,
331 &table_attr->attr)) {
332 kfree(table_attr);
333 return AE_ERROR;
334 } else
335 list_add_tail(&table_attr->node, &acpi_table_attr_list);
336 break;
337 case ACPI_TABLE_EVENT_UNLOAD:
338
339
340
341
342
343 break;
344 default:
345 return AE_BAD_PARAMETER;
346 }
347 return AE_OK;
348}
349
350static int acpi_tables_sysfs_init(void)
351{
352 struct acpi_table_attr *table_attr;
353 struct acpi_table_header *table_header = NULL;
354 int table_index = 0;
355 int result;
356
357 tables_kobj = kobject_create_and_add("tables", acpi_kobj);
358 if (!tables_kobj)
359 goto err;
360
361 dynamic_tables_kobj = kobject_create_and_add("dynamic", tables_kobj);
362 if (!dynamic_tables_kobj)
363 goto err_dynamic_tables;
364
365 do {
366 result = acpi_get_table_by_index(table_index, &table_header);
367 if (!result) {
368 table_index++;
369 table_attr = NULL;
370 table_attr =
371 kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL);
372 if (!table_attr)
373 return -ENOMEM;
374
375 acpi_table_attr_init(table_attr, table_header);
376 result =
377 sysfs_create_bin_file(tables_kobj,
378 &table_attr->attr);
379 if (result) {
380 kfree(table_attr);
381 return result;
382 } else
383 list_add_tail(&table_attr->node,
384 &acpi_table_attr_list);
385 }
386 } while (!result);
387 kobject_uevent(tables_kobj, KOBJ_ADD);
388 kobject_uevent(dynamic_tables_kobj, KOBJ_ADD);
389 result = acpi_install_table_handler(acpi_sysfs_table_handler, NULL);
390
391 return result == AE_OK ? 0 : -EINVAL;
392err_dynamic_tables:
393 kobject_put(tables_kobj);
394err:
395 return -ENOMEM;
396}
397
398
399
400
401
402
403u32 acpi_irq_handled;
404u32 acpi_irq_not_handled;
405
406#define COUNT_GPE 0
407#define COUNT_SCI 1
408#define COUNT_SCI_NOT 2
409#define COUNT_ERROR 3
410#define NUM_COUNTERS_EXTRA 4
411
412struct event_counter {
413 u32 count;
414 u32 flags;
415};
416
417static struct event_counter *all_counters;
418static u32 num_gpes;
419static u32 num_counters;
420static struct attribute **all_attrs;
421static u32 acpi_gpe_count;
422
423static struct attribute_group interrupt_stats_attr_group = {
424 .name = "interrupts",
425};
426
427static struct kobj_attribute *counter_attrs;
428
429static void delete_gpe_attr_array(void)
430{
431 struct event_counter *tmp = all_counters;
432
433 all_counters = NULL;
434 kfree(tmp);
435
436 if (counter_attrs) {
437 int i;
438
439 for (i = 0; i < num_gpes; i++)
440 kfree(counter_attrs[i].attr.name);
441
442 kfree(counter_attrs);
443 }
444 kfree(all_attrs);
445
446 return;
447}
448
449static void gpe_count(u32 gpe_number)
450{
451 acpi_gpe_count++;
452
453 if (!all_counters)
454 return;
455
456 if (gpe_number < num_gpes)
457 all_counters[gpe_number].count++;
458 else
459 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS +
460 COUNT_ERROR].count++;
461
462 return;
463}
464
465static void fixed_event_count(u32 event_number)
466{
467 if (!all_counters)
468 return;
469
470 if (event_number < ACPI_NUM_FIXED_EVENTS)
471 all_counters[num_gpes + event_number].count++;
472 else
473 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS +
474 COUNT_ERROR].count++;
475
476 return;
477}
478
479static void acpi_gbl_event_handler(u32 event_type, acpi_handle device,
480 u32 event_number, void *context)
481{
482 if (event_type == ACPI_EVENT_TYPE_GPE)
483 gpe_count(event_number);
484
485 if (event_type == ACPI_EVENT_TYPE_FIXED)
486 fixed_event_count(event_number);
487}
488
489static int get_status(u32 index, acpi_event_status *status,
490 acpi_handle *handle)
491{
492 int result = 0;
493
494 if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
495 goto end;
496
497 if (index < num_gpes) {
498 result = acpi_get_gpe_device(index, handle);
499 if (result) {
500 ACPI_EXCEPTION((AE_INFO, AE_NOT_FOUND,
501 "Invalid GPE 0x%x\n", index));
502 goto end;
503 }
504 result = acpi_get_gpe_status(*handle, index, status);
505 } else if (index < (num_gpes + ACPI_NUM_FIXED_EVENTS))
506 result = acpi_get_event_status(index - num_gpes, status);
507
508end:
509 return result;
510}
511
512static ssize_t counter_show(struct kobject *kobj,
513 struct kobj_attribute *attr, char *buf)
514{
515 int index = attr - counter_attrs;
516 int size;
517 acpi_handle handle;
518 acpi_event_status status;
519 int result = 0;
520
521 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI].count =
522 acpi_irq_handled;
523 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT].count =
524 acpi_irq_not_handled;
525 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE].count =
526 acpi_gpe_count;
527 size = sprintf(buf, "%8d", all_counters[index].count);
528
529
530 if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
531 goto end;
532
533 result = get_status(index, &status, &handle);
534 if (result)
535 goto end;
536
537 if (!(status & ACPI_EVENT_FLAG_HANDLE))
538 size += sprintf(buf + size, " invalid");
539 else if (status & ACPI_EVENT_FLAG_ENABLED)
540 size += sprintf(buf + size, " enabled");
541 else if (status & ACPI_EVENT_FLAG_WAKE_ENABLED)
542 size += sprintf(buf + size, " wake_enabled");
543 else
544 size += sprintf(buf + size, " disabled");
545
546end:
547 size += sprintf(buf + size, "\n");
548 return result ? result : size;
549}
550
551
552
553
554
555
556static ssize_t counter_set(struct kobject *kobj,
557 struct kobj_attribute *attr, const char *buf,
558 size_t size)
559{
560 int index = attr - counter_attrs;
561 acpi_event_status status;
562 acpi_handle handle;
563 int result = 0;
564
565 if (index == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI) {
566 int i;
567 for (i = 0; i < num_counters; ++i)
568 all_counters[i].count = 0;
569 acpi_gpe_count = 0;
570 acpi_irq_handled = 0;
571 acpi_irq_not_handled = 0;
572 goto end;
573 }
574
575
576 result = get_status(index, &status, &handle);
577 if (result)
578 goto end;
579
580 if (!(status & ACPI_EVENT_FLAG_HANDLE)) {
581 printk(KERN_WARNING PREFIX
582 "Can not change Invalid GPE/Fixed Event status\n");
583 return -EINVAL;
584 }
585
586 if (index < num_gpes) {
587 if (!strcmp(buf, "disable\n") &&
588 (status & ACPI_EVENT_FLAG_ENABLED))
589 result = acpi_disable_gpe(handle, index);
590 else if (!strcmp(buf, "enable\n") &&
591 !(status & ACPI_EVENT_FLAG_ENABLED))
592 result = acpi_enable_gpe(handle, index);
593 else if (!strcmp(buf, "clear\n") &&
594 (status & ACPI_EVENT_FLAG_SET))
595 result = acpi_clear_gpe(handle, index);
596 else
597 all_counters[index].count = strtoul(buf, NULL, 0);
598 } else if (index < num_gpes + ACPI_NUM_FIXED_EVENTS) {
599 int event = index - num_gpes;
600 if (!strcmp(buf, "disable\n") &&
601 (status & ACPI_EVENT_FLAG_ENABLED))
602 result = acpi_disable_event(event, ACPI_NOT_ISR);
603 else if (!strcmp(buf, "enable\n") &&
604 !(status & ACPI_EVENT_FLAG_ENABLED))
605 result = acpi_enable_event(event, ACPI_NOT_ISR);
606 else if (!strcmp(buf, "clear\n") &&
607 (status & ACPI_EVENT_FLAG_SET))
608 result = acpi_clear_event(event);
609 else
610 all_counters[index].count = strtoul(buf, NULL, 0);
611 } else
612 all_counters[index].count = strtoul(buf, NULL, 0);
613
614 if (ACPI_FAILURE(result))
615 result = -EINVAL;
616end:
617 return result ? result : size;
618}
619
620void acpi_irq_stats_init(void)
621{
622 acpi_status status;
623 int i;
624
625 if (all_counters)
626 return;
627
628 num_gpes = acpi_current_gpe_count;
629 num_counters = num_gpes + ACPI_NUM_FIXED_EVENTS + NUM_COUNTERS_EXTRA;
630
631 all_attrs = kzalloc(sizeof(struct attribute *) * (num_counters + 1),
632 GFP_KERNEL);
633 if (all_attrs == NULL)
634 return;
635
636 all_counters = kzalloc(sizeof(struct event_counter) * (num_counters),
637 GFP_KERNEL);
638 if (all_counters == NULL)
639 goto fail;
640
641 status = acpi_install_global_event_handler(acpi_gbl_event_handler, NULL);
642 if (ACPI_FAILURE(status))
643 goto fail;
644
645 counter_attrs = kzalloc(sizeof(struct kobj_attribute) * (num_counters),
646 GFP_KERNEL);
647 if (counter_attrs == NULL)
648 goto fail;
649
650 for (i = 0; i < num_counters; ++i) {
651 char buffer[12];
652 char *name;
653
654 if (i < num_gpes)
655 sprintf(buffer, "gpe%02X", i);
656 else if (i == num_gpes + ACPI_EVENT_PMTIMER)
657 sprintf(buffer, "ff_pmtimer");
658 else if (i == num_gpes + ACPI_EVENT_GLOBAL)
659 sprintf(buffer, "ff_gbl_lock");
660 else if (i == num_gpes + ACPI_EVENT_POWER_BUTTON)
661 sprintf(buffer, "ff_pwr_btn");
662 else if (i == num_gpes + ACPI_EVENT_SLEEP_BUTTON)
663 sprintf(buffer, "ff_slp_btn");
664 else if (i == num_gpes + ACPI_EVENT_RTC)
665 sprintf(buffer, "ff_rt_clk");
666 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE)
667 sprintf(buffer, "gpe_all");
668 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI)
669 sprintf(buffer, "sci");
670 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT)
671 sprintf(buffer, "sci_not");
672 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR)
673 sprintf(buffer, "error");
674 else
675 sprintf(buffer, "bug%02X", i);
676
677 name = kzalloc(strlen(buffer) + 1, GFP_KERNEL);
678 if (name == NULL)
679 goto fail;
680 strncpy(name, buffer, strlen(buffer) + 1);
681
682 sysfs_attr_init(&counter_attrs[i].attr);
683 counter_attrs[i].attr.name = name;
684 counter_attrs[i].attr.mode = 0644;
685 counter_attrs[i].show = counter_show;
686 counter_attrs[i].store = counter_set;
687
688 all_attrs[i] = &counter_attrs[i].attr;
689 }
690
691 interrupt_stats_attr_group.attrs = all_attrs;
692 if (!sysfs_create_group(acpi_kobj, &interrupt_stats_attr_group))
693 return;
694
695fail:
696 delete_gpe_attr_array();
697 return;
698}
699
700static void __exit interrupt_stats_exit(void)
701{
702 sysfs_remove_group(acpi_kobj, &interrupt_stats_attr_group);
703
704 delete_gpe_attr_array();
705
706 return;
707}
708
709int __init acpi_sysfs_init(void)
710{
711 int result;
712
713 result = acpi_tables_sysfs_init();
714
715 return result;
716}
717
