2 * sysfs.c - ACPI sysfs interface to userspace.
5 #include <linux/init.h>
6 #include <linux/kernel.h>
7 #include <linux/moduleparam.h>
8 #include <linux/acpi.h>
12 #define _COMPONENT ACPI_SYSTEM_COMPONENT
13 ACPI_MODULE_NAME("sysfs");
15 #ifdef CONFIG_ACPI_DEBUG
17 * ACPI debug sysfs I/F, including:
18 * /sys/modules/acpi/parameters/debug_layer
19 * /sys/modules/acpi/parameters/debug_level
20 * /sys/modules/acpi/parameters/trace_method_name
21 * /sys/modules/acpi/parameters/trace_state
22 * /sys/modules/acpi/parameters/trace_debug_layer
23 * /sys/modules/acpi/parameters/trace_debug_level
34 #define ACPI_DEBUG_INIT(v) { .name = #v, .value = v }
36 static 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),
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),
68 static 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 ACPI_DEBUG_INIT(ACPI_LV_REPAIR),
73 ACPI_DEBUG_INIT(ACPI_LV_TRACE_POINT),
75 ACPI_DEBUG_INIT(ACPI_LV_INIT_NAMES),
76 ACPI_DEBUG_INIT(ACPI_LV_PARSE),
77 ACPI_DEBUG_INIT(ACPI_LV_LOAD),
78 ACPI_DEBUG_INIT(ACPI_LV_DISPATCH),
79 ACPI_DEBUG_INIT(ACPI_LV_EXEC),
80 ACPI_DEBUG_INIT(ACPI_LV_NAMES),
81 ACPI_DEBUG_INIT(ACPI_LV_OPREGION),
82 ACPI_DEBUG_INIT(ACPI_LV_BFIELD),
83 ACPI_DEBUG_INIT(ACPI_LV_TABLES),
84 ACPI_DEBUG_INIT(ACPI_LV_VALUES),
85 ACPI_DEBUG_INIT(ACPI_LV_OBJECTS),
86 ACPI_DEBUG_INIT(ACPI_LV_RESOURCES),
87 ACPI_DEBUG_INIT(ACPI_LV_USER_REQUESTS),
88 ACPI_DEBUG_INIT(ACPI_LV_PACKAGE),
90 ACPI_DEBUG_INIT(ACPI_LV_ALLOCATIONS),
91 ACPI_DEBUG_INIT(ACPI_LV_FUNCTIONS),
92 ACPI_DEBUG_INIT(ACPI_LV_OPTIMIZATIONS),
94 ACPI_DEBUG_INIT(ACPI_LV_MUTEX),
95 ACPI_DEBUG_INIT(ACPI_LV_THREADS),
96 ACPI_DEBUG_INIT(ACPI_LV_IO),
97 ACPI_DEBUG_INIT(ACPI_LV_INTERRUPTS),
99 ACPI_DEBUG_INIT(ACPI_LV_AML_DISASSEMBLE),
100 ACPI_DEBUG_INIT(ACPI_LV_VERBOSE_INFO),
101 ACPI_DEBUG_INIT(ACPI_LV_FULL_TABLES),
102 ACPI_DEBUG_INIT(ACPI_LV_EVENTS),
105 static int param_get_debug_layer(char *buffer, const struct kernel_param *kp)
110 result = sprintf(buffer, "%-25s\tHex SET\n", "Description");
112 for (i = 0; i < ARRAY_SIZE(acpi_debug_layers); i++) {
113 result += sprintf(buffer + result, "%-25s\t0x%08lX [%c]\n",
114 acpi_debug_layers[i].name,
115 acpi_debug_layers[i].value,
116 (acpi_dbg_layer & acpi_debug_layers[i].value)
120 sprintf(buffer + result, "%-25s\t0x%08X [%c]\n", "ACPI_ALL_DRIVERS",
122 (acpi_dbg_layer & ACPI_ALL_DRIVERS) ==
123 ACPI_ALL_DRIVERS ? '*' : (acpi_dbg_layer & ACPI_ALL_DRIVERS)
126 sprintf(buffer + result,
127 "--\ndebug_layer = 0x%08X ( * = enabled)\n",
133 static int param_get_debug_level(char *buffer, const struct kernel_param *kp)
138 result = sprintf(buffer, "%-25s\tHex SET\n", "Description");
140 for (i = 0; i < ARRAY_SIZE(acpi_debug_levels); i++) {
141 result += sprintf(buffer + result, "%-25s\t0x%08lX [%c]\n",
142 acpi_debug_levels[i].name,
143 acpi_debug_levels[i].value,
144 (acpi_dbg_level & acpi_debug_levels[i].value)
148 sprintf(buffer + result, "--\ndebug_level = 0x%08X (* = enabled)\n",
154 static const struct kernel_param_ops param_ops_debug_layer = {
155 .set = param_set_uint,
156 .get = param_get_debug_layer,
159 static const struct kernel_param_ops param_ops_debug_level = {
160 .set = param_set_uint,
161 .get = param_get_debug_level,
164 module_param_cb(debug_layer, ¶m_ops_debug_layer, &acpi_dbg_layer, 0644);
165 module_param_cb(debug_level, ¶m_ops_debug_level, &acpi_dbg_level, 0644);
167 static char trace_method_name[1024];
169 int param_set_trace_method_name(const char *val, const struct kernel_param *kp)
172 bool is_abs_path = true;
177 if ((is_abs_path && strlen(val) > 1023) ||
178 (!is_abs_path && strlen(val) > 1022)) {
179 pr_err("%s: string parameter too long\n", kp->name);
184 * It's not safe to update acpi_gbl_trace_method_name without
185 * having the tracer stopped, so we save the original tracer
186 * state and disable it.
188 saved_flags = acpi_gbl_trace_flags;
189 (void)acpi_debug_trace(NULL,
190 acpi_gbl_trace_dbg_level,
191 acpi_gbl_trace_dbg_layer,
194 /* This is a hack. We can't kmalloc in early boot. */
196 strcpy(trace_method_name, val);
198 trace_method_name[0] = '\\';
199 strcpy(trace_method_name+1, val);
202 /* Restore the original tracer state */
203 (void)acpi_debug_trace(trace_method_name,
204 acpi_gbl_trace_dbg_level,
205 acpi_gbl_trace_dbg_layer,
211 static int param_get_trace_method_name(char *buffer, const struct kernel_param *kp)
213 return scnprintf(buffer, PAGE_SIZE, "%s", acpi_gbl_trace_method_name);
216 static const struct kernel_param_ops param_ops_trace_method = {
217 .set = param_set_trace_method_name,
218 .get = param_get_trace_method_name,
221 static const struct kernel_param_ops param_ops_trace_attrib = {
222 .set = param_set_uint,
223 .get = param_get_uint,
226 module_param_cb(trace_method_name, ¶m_ops_trace_method, &trace_method_name, 0644);
227 module_param_cb(trace_debug_layer, ¶m_ops_trace_attrib, &acpi_gbl_trace_dbg_layer, 0644);
228 module_param_cb(trace_debug_level, ¶m_ops_trace_attrib, &acpi_gbl_trace_dbg_level, 0644);
230 static int param_set_trace_state(const char *val, struct kernel_param *kp)
233 const char *method = trace_method_name;
236 /* So "xxx-once" comparison should go prior than "xxx" comparison */
237 #define acpi_compare_param(val, key) \
238 strncmp((val), (key), sizeof(key) - 1)
240 if (!acpi_compare_param(val, "enable")) {
242 flags = ACPI_TRACE_ENABLED;
243 } else if (!acpi_compare_param(val, "disable"))
245 else if (!acpi_compare_param(val, "method-once"))
246 flags = ACPI_TRACE_ENABLED | ACPI_TRACE_ONESHOT;
247 else if (!acpi_compare_param(val, "method"))
248 flags = ACPI_TRACE_ENABLED;
249 else if (!acpi_compare_param(val, "opcode-once"))
250 flags = ACPI_TRACE_ENABLED | ACPI_TRACE_ONESHOT | ACPI_TRACE_OPCODE;
251 else if (!acpi_compare_param(val, "opcode"))
252 flags = ACPI_TRACE_ENABLED | ACPI_TRACE_OPCODE;
256 status = acpi_debug_trace(method,
257 acpi_gbl_trace_dbg_level,
258 acpi_gbl_trace_dbg_layer,
260 if (ACPI_FAILURE(status))
266 static int param_get_trace_state(char *buffer, struct kernel_param *kp)
268 if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED))
269 return sprintf(buffer, "disable");
271 if (acpi_gbl_trace_method_name) {
272 if (acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT)
273 return sprintf(buffer, "method-once");
275 return sprintf(buffer, "method");
277 return sprintf(buffer, "enable");
282 module_param_call(trace_state, param_set_trace_state, param_get_trace_state,
284 #endif /* CONFIG_ACPI_DEBUG */
287 /* /sys/modules/acpi/parameters/aml_debug_output */
289 module_param_named(aml_debug_output, acpi_gbl_enable_aml_debug_object,
291 MODULE_PARM_DESC(aml_debug_output,
292 "To enable/disable the ACPI Debug Object output.");
294 /* /sys/module/acpi/parameters/acpica_version */
295 static int param_get_acpica_version(char *buffer, struct kernel_param *kp)
299 result = sprintf(buffer, "%x", ACPI_CA_VERSION);
304 module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
307 * ACPI table sysfs I/F:
308 * /sys/firmware/acpi/tables/
309 * /sys/firmware/acpi/tables/dynamic/
312 static LIST_HEAD(acpi_table_attr_list);
313 static struct kobject *tables_kobj;
314 static struct kobject *dynamic_tables_kobj;
315 static struct kobject *hotplug_kobj;
317 struct acpi_table_attr {
318 struct bin_attribute attr;
321 struct list_head node;
324 static ssize_t acpi_table_show(struct file *filp, struct kobject *kobj,
325 struct bin_attribute *bin_attr, char *buf,
326 loff_t offset, size_t count)
328 struct acpi_table_attr *table_attr =
329 container_of(bin_attr, struct acpi_table_attr, attr);
330 struct acpi_table_header *table_header = NULL;
332 char name[ACPI_NAME_SIZE];
334 if (strncmp(table_attr->name, "NULL", 4))
335 memcpy(name, table_attr->name, ACPI_NAME_SIZE);
337 memcpy(name, "\0\0\0\0", 4);
339 status = acpi_get_table(name, table_attr->instance, &table_header);
340 if (ACPI_FAILURE(status))
343 return memory_read_from_buffer(buf, count, &offset,
344 table_header, table_header->length);
347 static void acpi_table_attr_init(struct acpi_table_attr *table_attr,
348 struct acpi_table_header *table_header)
350 struct acpi_table_header *header = NULL;
351 struct acpi_table_attr *attr = NULL;
353 sysfs_attr_init(&table_attr->attr.attr);
354 if (table_header->signature[0] != '\0')
355 memcpy(table_attr->name, table_header->signature,
358 memcpy(table_attr->name, "NULL", 4);
360 list_for_each_entry(attr, &acpi_table_attr_list, node) {
361 if (!memcmp(table_attr->name, attr->name, ACPI_NAME_SIZE))
362 if (table_attr->instance < attr->instance)
363 table_attr->instance = attr->instance;
365 table_attr->instance++;
367 if (table_attr->instance > 1 || (table_attr->instance == 1 &&
369 (table_header->signature, 2, &header)))
370 sprintf(table_attr->name + ACPI_NAME_SIZE, "%d",
371 table_attr->instance);
373 table_attr->attr.size = table_header->length;
374 table_attr->attr.read = acpi_table_show;
375 table_attr->attr.attr.name = table_attr->name;
376 table_attr->attr.attr.mode = 0400;
381 acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context)
383 struct acpi_table_attr *table_attr;
386 case ACPI_TABLE_EVENT_INSTALL:
388 kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL);
392 acpi_table_attr_init(table_attr, table);
393 if (sysfs_create_bin_file(dynamic_tables_kobj,
394 &table_attr->attr)) {
398 list_add_tail(&table_attr->node, &acpi_table_attr_list);
400 case ACPI_TABLE_EVENT_LOAD:
401 case ACPI_TABLE_EVENT_UNLOAD:
402 case ACPI_TABLE_EVENT_UNINSTALL:
404 * we do not need to do anything right now
405 * because the table is not deleted from the
406 * global table list when unloading it.
410 return AE_BAD_PARAMETER;
415 static int acpi_tables_sysfs_init(void)
417 struct acpi_table_attr *table_attr;
418 struct acpi_table_header *table_header = NULL;
423 tables_kobj = kobject_create_and_add("tables", acpi_kobj);
427 dynamic_tables_kobj = kobject_create_and_add("dynamic", tables_kobj);
428 if (!dynamic_tables_kobj)
429 goto err_dynamic_tables;
431 for (table_index = 0;; table_index++) {
432 status = acpi_get_table_by_index(table_index, &table_header);
434 if (status == AE_BAD_PARAMETER)
437 if (ACPI_FAILURE(status))
441 table_attr = kzalloc(sizeof(*table_attr), GFP_KERNEL);
445 acpi_table_attr_init(table_attr, table_header);
446 ret = sysfs_create_bin_file(tables_kobj, &table_attr->attr);
451 list_add_tail(&table_attr->node, &acpi_table_attr_list);
454 kobject_uevent(tables_kobj, KOBJ_ADD);
455 kobject_uevent(dynamic_tables_kobj, KOBJ_ADD);
459 kobject_put(tables_kobj);
465 * Detailed ACPI IRQ counters:
466 * /sys/firmware/acpi/interrupts/
469 u32 acpi_irq_handled;
470 u32 acpi_irq_not_handled;
473 #define COUNT_SCI 1 /* acpi_irq_handled */
474 #define COUNT_SCI_NOT 2 /* acpi_irq_not_handled */
475 #define COUNT_ERROR 3 /* other */
476 #define NUM_COUNTERS_EXTRA 4
478 struct event_counter {
483 static struct event_counter *all_counters;
485 static u32 num_counters;
486 static struct attribute **all_attrs;
487 static u32 acpi_gpe_count;
489 static struct attribute_group interrupt_stats_attr_group = {
490 .name = "interrupts",
493 static struct kobj_attribute *counter_attrs;
495 static void delete_gpe_attr_array(void)
497 struct event_counter *tmp = all_counters;
505 for (i = 0; i < num_gpes; i++)
506 kfree(counter_attrs[i].attr.name);
508 kfree(counter_attrs);
515 static void gpe_count(u32 gpe_number)
522 if (gpe_number < num_gpes)
523 all_counters[gpe_number].count++;
525 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS +
526 COUNT_ERROR].count++;
531 static void fixed_event_count(u32 event_number)
536 if (event_number < ACPI_NUM_FIXED_EVENTS)
537 all_counters[num_gpes + event_number].count++;
539 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS +
540 COUNT_ERROR].count++;
545 static void acpi_global_event_handler(u32 event_type, acpi_handle device,
546 u32 event_number, void *context)
548 if (event_type == ACPI_EVENT_TYPE_GPE)
549 gpe_count(event_number);
551 if (event_type == ACPI_EVENT_TYPE_FIXED)
552 fixed_event_count(event_number);
555 static int get_status(u32 index, acpi_event_status *status,
560 if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
563 if (index < num_gpes) {
564 result = acpi_get_gpe_device(index, handle);
566 ACPI_EXCEPTION((AE_INFO, AE_NOT_FOUND,
567 "Invalid GPE 0x%x", index));
570 result = acpi_get_gpe_status(*handle, index, status);
571 } else if (index < (num_gpes + ACPI_NUM_FIXED_EVENTS))
572 result = acpi_get_event_status(index - num_gpes, status);
577 static ssize_t counter_show(struct kobject *kobj,
578 struct kobj_attribute *attr, char *buf)
580 int index = attr - counter_attrs;
583 acpi_event_status status;
586 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI].count =
588 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT].count =
589 acpi_irq_not_handled;
590 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE].count =
592 size = sprintf(buf, "%8u", all_counters[index].count);
594 /* "gpe_all" or "sci" */
595 if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
598 result = get_status(index, &status, &handle);
602 if (status & ACPI_EVENT_FLAG_ENABLE_SET)
603 size += sprintf(buf + size, " EN");
605 size += sprintf(buf + size, " ");
606 if (status & ACPI_EVENT_FLAG_STATUS_SET)
607 size += sprintf(buf + size, " STS");
609 size += sprintf(buf + size, " ");
611 if (!(status & ACPI_EVENT_FLAG_HAS_HANDLER))
612 size += sprintf(buf + size, " invalid ");
613 else if (status & ACPI_EVENT_FLAG_ENABLED)
614 size += sprintf(buf + size, " enabled ");
615 else if (status & ACPI_EVENT_FLAG_WAKE_ENABLED)
616 size += sprintf(buf + size, " wake_enabled");
618 size += sprintf(buf + size, " disabled ");
619 if (status & ACPI_EVENT_FLAG_MASKED)
620 size += sprintf(buf + size, " masked ");
622 size += sprintf(buf + size, " unmasked");
625 size += sprintf(buf + size, "\n");
626 return result ? result : size;
630 * counter_set() sets the specified counter.
631 * setting the total "sci" file to any value clears all counters.
632 * enable/disable/clear a gpe/fixed event in user space.
634 static ssize_t counter_set(struct kobject *kobj,
635 struct kobj_attribute *attr, const char *buf,
638 int index = attr - counter_attrs;
639 acpi_event_status status;
644 if (index == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI) {
646 for (i = 0; i < num_counters; ++i)
647 all_counters[i].count = 0;
649 acpi_irq_handled = 0;
650 acpi_irq_not_handled = 0;
654 /* show the event status for both GPEs and Fixed Events */
655 result = get_status(index, &status, &handle);
659 if (!(status & ACPI_EVENT_FLAG_HAS_HANDLER)) {
660 printk(KERN_WARNING PREFIX
661 "Can not change Invalid GPE/Fixed Event status\n");
665 if (index < num_gpes) {
666 if (!strcmp(buf, "disable\n") &&
667 (status & ACPI_EVENT_FLAG_ENABLED))
668 result = acpi_disable_gpe(handle, index);
669 else if (!strcmp(buf, "enable\n") &&
670 !(status & ACPI_EVENT_FLAG_ENABLED))
671 result = acpi_enable_gpe(handle, index);
672 else if (!strcmp(buf, "clear\n") &&
673 (status & ACPI_EVENT_FLAG_STATUS_SET))
674 result = acpi_clear_gpe(handle, index);
675 else if (!strcmp(buf, "mask\n"))
676 result = acpi_mask_gpe(handle, index, TRUE);
677 else if (!strcmp(buf, "unmask\n"))
678 result = acpi_mask_gpe(handle, index, FALSE);
679 else if (!kstrtoul(buf, 0, &tmp))
680 all_counters[index].count = tmp;
683 } else if (index < num_gpes + ACPI_NUM_FIXED_EVENTS) {
684 int event = index - num_gpes;
685 if (!strcmp(buf, "disable\n") &&
686 (status & ACPI_EVENT_FLAG_ENABLE_SET))
687 result = acpi_disable_event(event, ACPI_NOT_ISR);
688 else if (!strcmp(buf, "enable\n") &&
689 !(status & ACPI_EVENT_FLAG_ENABLE_SET))
690 result = acpi_enable_event(event, ACPI_NOT_ISR);
691 else if (!strcmp(buf, "clear\n") &&
692 (status & ACPI_EVENT_FLAG_STATUS_SET))
693 result = acpi_clear_event(event);
694 else if (!kstrtoul(buf, 0, &tmp))
695 all_counters[index].count = tmp;
699 all_counters[index].count = strtoul(buf, NULL, 0);
701 if (ACPI_FAILURE(result))
704 return result ? result : size;
707 void acpi_irq_stats_init(void)
715 num_gpes = acpi_current_gpe_count;
716 num_counters = num_gpes + ACPI_NUM_FIXED_EVENTS + NUM_COUNTERS_EXTRA;
718 all_attrs = kzalloc(sizeof(struct attribute *) * (num_counters + 1),
720 if (all_attrs == NULL)
723 all_counters = kzalloc(sizeof(struct event_counter) * (num_counters),
725 if (all_counters == NULL)
728 status = acpi_install_global_event_handler(acpi_global_event_handler, NULL);
729 if (ACPI_FAILURE(status))
732 counter_attrs = kzalloc(sizeof(struct kobj_attribute) * (num_counters),
734 if (counter_attrs == NULL)
737 for (i = 0; i < num_counters; ++i) {
742 sprintf(buffer, "gpe%02X", i);
743 else if (i == num_gpes + ACPI_EVENT_PMTIMER)
744 sprintf(buffer, "ff_pmtimer");
745 else if (i == num_gpes + ACPI_EVENT_GLOBAL)
746 sprintf(buffer, "ff_gbl_lock");
747 else if (i == num_gpes + ACPI_EVENT_POWER_BUTTON)
748 sprintf(buffer, "ff_pwr_btn");
749 else if (i == num_gpes + ACPI_EVENT_SLEEP_BUTTON)
750 sprintf(buffer, "ff_slp_btn");
751 else if (i == num_gpes + ACPI_EVENT_RTC)
752 sprintf(buffer, "ff_rt_clk");
753 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE)
754 sprintf(buffer, "gpe_all");
755 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI)
756 sprintf(buffer, "sci");
757 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT)
758 sprintf(buffer, "sci_not");
759 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR)
760 sprintf(buffer, "error");
762 sprintf(buffer, "bug%02X", i);
764 name = kstrdup(buffer, GFP_KERNEL);
768 sysfs_attr_init(&counter_attrs[i].attr);
769 counter_attrs[i].attr.name = name;
770 counter_attrs[i].attr.mode = 0644;
771 counter_attrs[i].show = counter_show;
772 counter_attrs[i].store = counter_set;
774 all_attrs[i] = &counter_attrs[i].attr;
777 interrupt_stats_attr_group.attrs = all_attrs;
778 if (!sysfs_create_group(acpi_kobj, &interrupt_stats_attr_group))
782 delete_gpe_attr_array();
786 static void __exit interrupt_stats_exit(void)
788 sysfs_remove_group(acpi_kobj, &interrupt_stats_attr_group);
790 delete_gpe_attr_array();
796 acpi_show_profile(struct device *dev, struct device_attribute *attr,
799 return sprintf(buf, "%d\n", acpi_gbl_FADT.preferred_profile);
802 static const struct device_attribute pm_profile_attr =
803 __ATTR(pm_profile, S_IRUGO, acpi_show_profile, NULL);
805 static ssize_t hotplug_enabled_show(struct kobject *kobj,
806 struct kobj_attribute *attr, char *buf)
808 struct acpi_hotplug_profile *hotplug = to_acpi_hotplug_profile(kobj);
810 return sprintf(buf, "%d\n", hotplug->enabled);
813 static ssize_t hotplug_enabled_store(struct kobject *kobj,
814 struct kobj_attribute *attr,
815 const char *buf, size_t size)
817 struct acpi_hotplug_profile *hotplug = to_acpi_hotplug_profile(kobj);
820 if (kstrtouint(buf, 10, &val) || val > 1)
823 acpi_scan_hotplug_enabled(hotplug, val);
827 static struct kobj_attribute hotplug_enabled_attr =
828 __ATTR(enabled, S_IRUGO | S_IWUSR, hotplug_enabled_show,
829 hotplug_enabled_store);
831 static struct attribute *hotplug_profile_attrs[] = {
832 &hotplug_enabled_attr.attr,
836 static struct kobj_type acpi_hotplug_profile_ktype = {
837 .sysfs_ops = &kobj_sysfs_ops,
838 .default_attrs = hotplug_profile_attrs,
841 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
849 error = kobject_init_and_add(&hotplug->kobj,
850 &acpi_hotplug_profile_ktype, hotplug_kobj, "%s", name);
854 kobject_uevent(&hotplug->kobj, KOBJ_ADD);
858 pr_err(PREFIX "Unable to add hotplug profile '%s'\n", name);
861 static ssize_t force_remove_show(struct kobject *kobj,
862 struct kobj_attribute *attr, char *buf)
864 return sprintf(buf, "%d\n", !!acpi_force_hot_remove);
867 static ssize_t force_remove_store(struct kobject *kobj,
868 struct kobj_attribute *attr,
869 const char *buf, size_t size)
874 ret = strtobool(buf, &val);
878 lock_device_hotplug();
879 acpi_force_hot_remove = val;
880 unlock_device_hotplug();
884 static const struct kobj_attribute force_remove_attr =
885 __ATTR(force_remove, S_IRUGO | S_IWUSR, force_remove_show,
888 int __init acpi_sysfs_init(void)
892 result = acpi_tables_sysfs_init();
896 hotplug_kobj = kobject_create_and_add("hotplug", acpi_kobj);
900 result = sysfs_create_file(hotplug_kobj, &force_remove_attr.attr);
904 result = sysfs_create_file(acpi_kobj, &pm_profile_attr.attr);