aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorStephen Rothwell <sfr@canb.auug.org.au>2007-10-11 02:27:34 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-14 00:53:12 -0400
commita2cd15586e630b0870bf34783568d83901890743 (patch)
treecb914a4b6c2531d2a9aabca708992672dc76a442
parent7379b42b607782695f49d05c80d3eb99e5072908 (diff)
[SPARC/64]: Move of_platform_driver initialisations: arch/sparc{,64}.
We no longer initialise the name field of the of_platform_driver, but use the name field of the embedded device_driver's name field instead. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--arch/sparc/kernel/time.c4
-rw-r--r--arch/sparc64/kernel/auxio.c4
-rw-r--r--arch/sparc64/kernel/power.c4
-rw-r--r--arch/sparc64/kernel/time.c4
4 files changed, 12 insertions, 4 deletions
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index 6a2513321620..4bf78a5e8e0f 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -347,9 +347,11 @@ static struct of_device_id clock_match[] = {
347}; 347};
348 348
349static struct of_platform_driver clock_driver = { 349static struct of_platform_driver clock_driver = {
350 .name = "clock",
351 .match_table = clock_match, 350 .match_table = clock_match,
352 .probe = clock_probe, 351 .probe = clock_probe,
352 .driver = {
353 .name = "clock",
354 },
353}; 355};
354 356
355 357
diff --git a/arch/sparc64/kernel/auxio.c b/arch/sparc64/kernel/auxio.c
index 7b379761e9f8..c55f0293eacd 100644
--- a/arch/sparc64/kernel/auxio.c
+++ b/arch/sparc64/kernel/auxio.c
@@ -148,9 +148,11 @@ static int __devinit auxio_probe(struct of_device *dev, const struct of_device_i
148} 148}
149 149
150static struct of_platform_driver auxio_driver = { 150static struct of_platform_driver auxio_driver = {
151 .name = "auxio",
152 .match_table = auxio_match, 151 .match_table = auxio_match,
153 .probe = auxio_probe, 152 .probe = auxio_probe,
153 .driver = {
154 .name = "auxio",
155 },
154}; 156};
155 157
156static int __init auxio_init(void) 158static int __init auxio_init(void)
diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c
index 881a09ee4c4c..850cdffdd69c 100644
--- a/arch/sparc64/kernel/power.c
+++ b/arch/sparc64/kernel/power.c
@@ -105,9 +105,11 @@ static struct of_device_id power_match[] = {
105}; 105};
106 106
107static struct of_platform_driver power_driver = { 107static struct of_platform_driver power_driver = {
108 .name = "power",
109 .match_table = power_match, 108 .match_table = power_match,
110 .probe = power_probe, 109 .probe = power_probe,
110 .driver = {
111 .name = "power",
112 },
111}; 113};
112 114
113void __init power_init(void) 115void __init power_init(void)
diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c
index 69cad1b653c1..cd8c740cba1d 100644
--- a/arch/sparc64/kernel/time.c
+++ b/arch/sparc64/kernel/time.c
@@ -764,9 +764,11 @@ static struct of_device_id clock_match[] = {
764}; 764};
765 765
766static struct of_platform_driver clock_driver = { 766static struct of_platform_driver clock_driver = {
767 .name = "clock",
768 .match_table = clock_match, 767 .match_table = clock_match,
769 .probe = clock_probe, 768 .probe = clock_probe,
769 .driver = {
770 .name = "clock",
771 },
770}; 772};
771 773
772static int __init clock_init(void) 774static int __init clock_init(void)
f='/cgit/cgit.cgi/litmus-rt.git/commit/drivers/acpi/system.c?id=71b58cbb0c30d1f78636a48c4721529449d6ea37'>71b58cbb0c30
5229e87d59ce









71b58cbb0c30
5229e87d59ce
71b58cbb0c30

5229e87d59ce



71b58cbb0c30







e97d6bf1a01b
71b58cbb0c30




0f849d2cc686
71b58cbb0c30


71b58cbb0c30



5229e87d59ce


71b58cbb0c30






5229e87d59ce
88bea188b85f

71b58cbb0c30
5229e87d59ce

71b58cbb0c30









ed206fac87d6

71b58cbb0c30
ed206fac87d6


71b58cbb0c30
ed206fac87d6
71b58cbb0c30



5229e87d59ce




71b58cbb0c30
5229e87d59ce




71b58cbb0c30


5229e87d59ce



71b58cbb0c30
5229e87d59ce

88bea188b85f
71b58cbb0c30







ed206fac87d6
55ac9a018f83

71b58cbb0c30

5229e87d59ce
71b58cbb0c30


9d3c752de65d

71b58cbb0c30

9d3c752de65d

71b58cbb0c30

0f849d2cc686
71b58cbb0c30














5229e87d59ce
71b58cbb0c30
5229e87d59ce
71b58cbb0c30



5229e87d59ce








e97d6bf1a01b
5229e87d59ce






71b58cbb0c30

5229e87d59ce








c8dc9de10951
5229e87d59ce

















88bea188b85f

5229e87d59ce









a07e4156a2ee
5229e87d59ce








b7143156c9ce

5229e87d59ce














d4c5f047ae2a
1da177e4c3f4

5bb730fda8aa
d4c5f047ae2a



1da177e4c3f4
4be44fcd3bf6
1da177e4c3f4
1da177e4c3f4

d550d98d3317
1da177e4c3f4






d75080328aff
cf7acfab032f
4be44fcd3bf6



1da177e4c3f4

4be44fcd3bf6

1da177e4c3f4
d75080328aff
cf7acfab032f
4be44fcd3bf6
1da177e4c3f4


4be44fcd3bf6

1da177e4c3f4
4be44fcd3bf6
ad71860a17ba
4be44fcd3bf6
1da177e4c3f4
ad71860a17ba
1da177e4c3f4
d550d98d3317
1da177e4c3f4
d4c5f047ae2a
1da177e4c3f4
d550d98d3317
1da177e4c3f4

4be44fcd3bf6

1da177e4c3f4
d75080328aff
cf7acfab032f
4be44fcd3bf6
1da177e4c3f4


4be44fcd3bf6

1da177e4c3f4
4be44fcd3bf6
ad71860a17ba
4be44fcd3bf6
1da177e4c3f4
ad71860a17ba
1da177e4c3f4
d550d98d3317
1da177e4c3f4
d4c5f047ae2a
1da177e4c3f4
d550d98d3317
1da177e4c3f4

d4c5f047ae2a
1da177e4c3f4
4be44fcd3bf6
1da177e4c3f4
1da177e4c3f4
1da177e4c3f4
cf7acfab032f

1da177e4c3f4

1da177e4c3f4

cf7acfab032f


1da177e4c3f4


cf7acfab032f


1da177e4c3f4

4be44fcd3bf6
d550d98d3317
1da177e4c3f4
4be44fcd3bf6
1da177e4c3f4






d4c5f047ae2a






141a0af3cab7
d4c5f047ae2a
141a0af3cab7
d4c5f047ae2a








1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639


























                                                                             
                       
                       
                         



                              

                       
                                                     
                           
 
                                                
                                                
 
                     
                         
 


                                           

                                                                          








                                                                              
                                                                             


                                                                                
                                   
                                           







                                  
                                                                       






                                                                         





                                                               

                
                                                      



                                          

                                                                            







                                                                        
                                                




                                                                 

                                                                
                                                                          





                                                                      



                                                                               



                                                      
                                          



               

































                                                                            






                                                      

                                                                  




                                                                             












                                                                                
                                                              








                                                                     
                                              







                                                                            

 






                                                               


                                                  
 





                                          









                                                            

                                       
                                                 
























                                                          
                                                 
            

                                                                             









                                                 
                                                              
            

                                                                             



               







                                                                                
                                                            




                                                              
                                                                     


                                                                         



                      


                                                 






                                                                          
                                 

                                                                              
                                                                          

                               









                                                              

                                                          
                                                  


                                                               
            
                                                           



                                          




                                                                 
                                                        




                                                                  


                                 



                                                                    
                                                  

                                     
                                         







                                                                  
                                                 

                                                                           

                               
 


                                                                   

                                                                       

                                                                    

                                                                       

                                                               
                                                               














                                                                          
              
                                                                  
 



                                      








                              
                                          






                                                                             

                                                                             








                                                                               
                                

















                                                                           

                                                                               









                                                                             
                                                        








                                                      

                                                                        














                                                                   
                                                                             

                                                                                
                         



                                               
 
                                                                    
 

                                                                          
                 






                                                                           
                                                            
                             



                                         

  

                                                                          
 
                                                            
                             
                                      


              

                                                                        
 
                                   
                                              
                    
 
                                                         
                                 
                               
 
                                                                               
 
                   

 

                                                                          
 
                                                            
                             
                                      


              

                                                                        
 
                                   
                                              
                    
 
                                                         
                                 
                               
 
                                                                               
 
                   

 
                                        
 
                                     
                      
 
                        

                                                                          

                           

                        


                                                                          


                           


                                                                          

                           
           
                     
 
            






                                                                






                                        
                                 
 
                   








                                           
/*
 *  acpi_system.c - ACPI System Driver ($Revision: 63 $)
 *
 *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
 *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or (at
 *  your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 */

#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/string.h>
#include <asm/uaccess.h>

#include <acpi/acpi_drivers.h>

#define PREFIX "ACPI: "

#define _COMPONENT		ACPI_SYSTEM_COMPONENT
ACPI_MODULE_NAME("system");

#define ACPI_SYSTEM_CLASS		"system"
#define ACPI_SYSTEM_DEVICE_NAME		"System"

u32 acpi_irq_handled;
u32 acpi_irq_not_handled;

/*
 * Make ACPICA version work as module param
 */
static int param_get_acpica_version(char *buffer, struct kernel_param *kp)
{
	int result;

	result = sprintf(buffer, "%x", ACPI_CA_VERSION);

	return result;
}

module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);

/* --------------------------------------------------------------------------
                              FS Interface (/sys)
   -------------------------------------------------------------------------- */
static LIST_HEAD(acpi_table_attr_list);
static struct kobject *tables_kobj;
static struct kobject *dynamic_tables_kobj;

struct acpi_table_attr {
	struct bin_attribute attr;
	char name[8];
	int instance;
	struct list_head node;
};

static ssize_t acpi_table_show(struct file *filp, struct kobject *kobj,
			       struct bin_attribute *bin_attr, char *buf,
			       loff_t offset, size_t count)
{
	struct acpi_table_attr *table_attr =
	    container_of(bin_attr, struct acpi_table_attr, attr);
	struct acpi_table_header *table_header = NULL;
	acpi_status status;
	char name[ACPI_NAME_SIZE];

	if (strncmp(table_attr->name, "NULL", 4))
		memcpy(name, table_attr->name, ACPI_NAME_SIZE);
	else
		memcpy(name, "\0\0\0\0", 4);

	status =
	    acpi_get_table(name, table_attr->instance,
			   &table_header);
	if (ACPI_FAILURE(status))
		return -ENODEV;

	return memory_read_from_buffer(buf, count, &offset,
					table_header, table_header->length);
}

static void acpi_table_attr_init(struct acpi_table_attr *table_attr,
				 struct acpi_table_header *table_header)
{
	struct acpi_table_header *header = NULL;
	struct acpi_table_attr *attr = NULL;

	sysfs_attr_init(&table_attr->attr.attr);
	if (table_header->signature[0] != '\0')
		memcpy(table_attr->name, table_header->signature,
			ACPI_NAME_SIZE);
	else
		memcpy(table_attr->name, "NULL", 4);

	list_for_each_entry(attr, &acpi_table_attr_list, node) {
		if (!memcmp(table_attr->name, attr->name, ACPI_NAME_SIZE))
			if (table_attr->instance < attr->instance)
				table_attr->instance = attr->instance;
	}
	table_attr->instance++;

	if (table_attr->instance > 1 || (table_attr->instance == 1 &&
					!acpi_get_table
					(table_header->signature, 2, &header)))
		sprintf(table_attr->name + ACPI_NAME_SIZE, "%d",
			table_attr->instance);

	table_attr->attr.size = 0;
	table_attr->attr.read = acpi_table_show;
	table_attr->attr.attr.name = table_attr->name;
	table_attr->attr.attr.mode = 0400;

	return;
}

static acpi_status
acpi_sysfs_table_handler(u32 event, void *table, void *context)
{
	struct acpi_table_attr *table_attr;

	switch (event) {
	case ACPI_TABLE_EVENT_LOAD:
		table_attr =
			kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL);
		if (!table_attr)
			return AE_NO_MEMORY;

		acpi_table_attr_init(table_attr, table);
		if (sysfs_create_bin_file(dynamic_tables_kobj,
					&table_attr->attr)) {
			kfree(table_attr);
			return AE_ERROR;
		} else
			list_add_tail(&table_attr->node,
					&acpi_table_attr_list);
		break;
	case ACPI_TABLE_EVENT_UNLOAD:
		/*
		 * we do not need to do anything right now
		 * because the table is not deleted from the
		 * global table list when unloading it.
		 */
		break;
	default:
		return AE_BAD_PARAMETER;
	}
	return AE_OK;
}

static int acpi_system_sysfs_init(void)
{
	struct acpi_table_attr *table_attr;
	struct acpi_table_header *table_header = NULL;
	int table_index = 0;
	int result;

	tables_kobj = kobject_create_and_add("tables", acpi_kobj);
	if (!tables_kobj)
		goto err;

	dynamic_tables_kobj = kobject_create_and_add("dynamic", tables_kobj);
	if (!dynamic_tables_kobj)
		goto err_dynamic_tables;

	do {
		result = acpi_get_table_by_index(table_index, &table_header);
		if (!result) {
			table_index++;
			table_attr = NULL;
			table_attr =
			    kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL);
			if (!table_attr)
				return -ENOMEM;

			acpi_table_attr_init(table_attr, table_header);
			result =
			    sysfs_create_bin_file(tables_kobj,
						  &table_attr->attr);
			if (result) {
				kfree(table_attr);
				return result;
			} else
				list_add_tail(&table_attr->node,
					      &acpi_table_attr_list);
		}
	} while (!result);
	kobject_uevent(tables_kobj, KOBJ_ADD);
	kobject_uevent(dynamic_tables_kobj, KOBJ_ADD);
	result = acpi_install_table_handler(acpi_sysfs_table_handler, NULL);

	return result == AE_OK ? 0 : -EINVAL;
err_dynamic_tables:
	kobject_put(tables_kobj);
err:
	return -ENOMEM;
}

/*
 * Detailed ACPI IRQ counters in /sys/firmware/acpi/interrupts/
 * See Documentation/ABI/testing/sysfs-firmware-acpi
 */

#define COUNT_GPE 0
#define COUNT_SCI 1	/* acpi_irq_handled */
#define COUNT_SCI_NOT 2	/* acpi_irq_not_handled */
#define COUNT_ERROR 3	/* other */
#define NUM_COUNTERS_EXTRA 4

struct event_counter {
	u32 count;
	u32 flags;
};

static struct event_counter *all_counters;
static u32 num_gpes;
static u32 num_counters;
static struct attribute **all_attrs;
static u32 acpi_gpe_count;

static struct attribute_group interrupt_stats_attr_group = {
	.name = "interrupts",
};
static struct kobj_attribute *counter_attrs;

static void delete_gpe_attr_array(void)
{
	struct event_counter *tmp = all_counters;

	all_counters = NULL;
	kfree(tmp);

	if (counter_attrs) {
		int i;

		for (i = 0; i < num_gpes; i++)
			kfree(counter_attrs[i].attr.name);

		kfree(counter_attrs);
	}
	kfree(all_attrs);

	return;
}

void acpi_os_gpe_count(u32 gpe_number)
{
	acpi_gpe_count++;

	if (!all_counters)
		return;

	if (gpe_number < num_gpes)
		all_counters[gpe_number].count++;
	else
		all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR].
					count++;

	return;
}

void acpi_os_fixed_event_count(u32 event_number)
{
	if (!all_counters)
		return;

	if (event_number < ACPI_NUM_FIXED_EVENTS)
		all_counters[num_gpes + event_number].count++;
	else
		all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR].
				count++;

	return;
}

static int get_status(u32 index, acpi_event_status *status, acpi_handle *handle)
{
	int result = 0;

	if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
		goto end;

	if (index < num_gpes) {
		result = acpi_get_gpe_device(index, handle);
		if (result) {
			ACPI_EXCEPTION((AE_INFO, AE_NOT_FOUND,
				"Invalid GPE 0x%x\n", index));
			goto end;
		}
		result = acpi_get_gpe_status(*handle, index, status);
	} else if (index < (num_gpes + ACPI_NUM_FIXED_EVENTS))
		result = acpi_get_event_status(index - num_gpes, status);

end:
	return result;
}

static ssize_t counter_show(struct kobject *kobj,
	struct kobj_attribute *attr, char *buf)
{
	int index = attr - counter_attrs;
	int size;
	acpi_handle handle;
	acpi_event_status status;
	int result = 0;

	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI].count =
		acpi_irq_handled;
	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT].count =
		acpi_irq_not_handled;
	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE].count =
		acpi_gpe_count;

	size = sprintf(buf, "%8d", all_counters[index].count);

	/* "gpe_all" or "sci" */
	if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
		goto end;

	result = get_status(index, &status, &handle);
	if (result)
		goto end;

	if (!(status & ACPI_EVENT_FLAG_HANDLE))
		size += sprintf(buf + size, "	invalid");
	else if (status & ACPI_EVENT_FLAG_ENABLED)
		size += sprintf(buf + size, "	enabled");
	else if (status & ACPI_EVENT_FLAG_WAKE_ENABLED)
		size += sprintf(buf + size, "	wake_enabled");
	else
		size += sprintf(buf + size, "	disabled");

end:
	size += sprintf(buf + size, "\n");
	return result ? result : size;
}

/*
 * counter_set() sets the specified counter.
 * setting the total "sci" file to any value clears all counters.
 * enable/disable/clear a gpe/fixed event in user space.
 */
static ssize_t counter_set(struct kobject *kobj,
	struct kobj_attribute *attr, const char *buf, size_t size)
{
	int index = attr - counter_attrs;
	acpi_event_status status;
	acpi_handle handle;
	int result = 0;

	if (index == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI) {
		int i;
		for (i = 0; i < num_counters; ++i)
			all_counters[i].count = 0;
		acpi_gpe_count = 0;
		acpi_irq_handled = 0;
		acpi_irq_not_handled = 0;
		goto end;
	}

	/* show the event status for both GPEs and Fixed Events */
	result = get_status(index, &status, &handle);
	if (result)
		goto end;

	if (!(status & ACPI_EVENT_FLAG_HANDLE)) {
		printk(KERN_WARNING PREFIX
			"Can not change Invalid GPE/Fixed Event status\n");
		return -EINVAL;
	}

	if (index < num_gpes) {
		if (!strcmp(buf, "disable\n") &&
				(status & ACPI_EVENT_FLAG_ENABLED))
			result = acpi_disable_gpe(handle, index,
						ACPI_GPE_TYPE_RUNTIME);
		else if (!strcmp(buf, "enable\n") &&
				!(status & ACPI_EVENT_FLAG_ENABLED))
			result = acpi_enable_gpe(handle, index,
						ACPI_GPE_TYPE_RUNTIME);
		else if (!strcmp(buf, "clear\n") &&
				(status & ACPI_EVENT_FLAG_SET))
			result = acpi_clear_gpe(handle, index);
		else
			all_counters[index].count = strtoul(buf, NULL, 0);
	} else if (index < num_gpes + ACPI_NUM_FIXED_EVENTS) {
		int event = index - num_gpes;
		if (!strcmp(buf, "disable\n") &&
				(status & ACPI_EVENT_FLAG_ENABLED))
			result = acpi_disable_event(event, ACPI_NOT_ISR);
		else if (!strcmp(buf, "enable\n") &&
				!(status & ACPI_EVENT_FLAG_ENABLED))
			result = acpi_enable_event(event, ACPI_NOT_ISR);
		else if (!strcmp(buf, "clear\n") &&
				(status & ACPI_EVENT_FLAG_SET))
			result = acpi_clear_event(event);
		else
			all_counters[index].count = strtoul(buf, NULL, 0);
	} else
		all_counters[index].count = strtoul(buf, NULL, 0);

	if (ACPI_FAILURE(result))
		result = -EINVAL;
end:
	return result ? result : size;
}

void acpi_irq_stats_init(void)
{
	int i;

	if (all_counters)
		return;

	num_gpes = acpi_current_gpe_count;
	num_counters = num_gpes + ACPI_NUM_FIXED_EVENTS + NUM_COUNTERS_EXTRA;

	all_attrs = kzalloc(sizeof(struct attribute *) * (num_counters + 1),
			GFP_KERNEL);
	if (all_attrs == NULL)
		return;

	all_counters = kzalloc(sizeof(struct event_counter) * (num_counters),
				GFP_KERNEL);
	if (all_counters == NULL)
		goto fail;

	counter_attrs = kzalloc(sizeof(struct kobj_attribute) * (num_counters),
			GFP_KERNEL);
	if (counter_attrs == NULL)
		goto fail;

	for (i = 0; i < num_counters; ++i) {
		char buffer[12];
		char *name;

		if (i < num_gpes)
			sprintf(buffer, "gpe%02X", i);
		else if (i == num_gpes + ACPI_EVENT_PMTIMER)
			sprintf(buffer, "ff_pmtimer");
		else if (i == num_gpes + ACPI_EVENT_GLOBAL)
			sprintf(buffer, "ff_gbl_lock");
		else if (i == num_gpes + ACPI_EVENT_POWER_BUTTON)
			sprintf(buffer, "ff_pwr_btn");
		else if (i == num_gpes + ACPI_EVENT_SLEEP_BUTTON)
			sprintf(buffer, "ff_slp_btn");
		else if (i == num_gpes + ACPI_EVENT_RTC)
			sprintf(buffer, "ff_rt_clk");
		else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE)
			sprintf(buffer, "gpe_all");
		else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI)
			sprintf(buffer, "sci");
		else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT)
			sprintf(buffer, "sci_not");
		else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR)
			sprintf(buffer, "error");
		else
			sprintf(buffer, "bug%02X", i);

		name = kzalloc(strlen(buffer) + 1, GFP_KERNEL);
		if (name == NULL)
			goto fail;
		strncpy(name, buffer, strlen(buffer) + 1);

		sysfs_attr_init(&counter_attrs[i].attr);
		counter_attrs[i].attr.name = name;
		counter_attrs[i].attr.mode = 0644;
		counter_attrs[i].show = counter_show;
		counter_attrs[i].store = counter_set;

		all_attrs[i] = &counter_attrs[i].attr;
	}

	interrupt_stats_attr_group.attrs = all_attrs;
	if (!sysfs_create_group(acpi_kobj, &interrupt_stats_attr_group))
		return;

fail:
	delete_gpe_attr_array();
	return;
}

static void __exit interrupt_stats_exit(void)
{
	sysfs_remove_group(acpi_kobj, &interrupt_stats_attr_group);

	delete_gpe_attr_array();

	return;
}

/* --------------------------------------------------------------------------
                              FS Interface (/proc)
   -------------------------------------------------------------------------- */
#ifdef CONFIG_ACPI_PROCFS
#define ACPI_SYSTEM_FILE_INFO		"info"
#define ACPI_SYSTEM_FILE_EVENT		"event"
#define ACPI_SYSTEM_FILE_DSDT		"dsdt"
#define ACPI_SYSTEM_FILE_FADT		"fadt"

static int acpi_system_read_info(struct seq_file *seq, void *offset)
{

	seq_printf(seq, "version:                 %x\n", ACPI_CA_VERSION);
	return 0;
}

static int acpi_system_info_open_fs(struct inode *inode, struct file *file)
{
	return single_open(file, acpi_system_read_info, PDE(inode)->data);
}

static const struct file_operations acpi_system_info_ops = {
	.owner = THIS_MODULE,
	.open = acpi_system_info_open_fs,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
};

static ssize_t acpi_system_read_dsdt(struct file *, char __user *, size_t,
				     loff_t *);

static const struct file_operations acpi_system_dsdt_ops = {
	.owner = THIS_MODULE,
	.read = acpi_system_read_dsdt,
};

static ssize_t
acpi_system_read_dsdt(struct file *file,
		      char __user * buffer, size_t count, loff_t * ppos)
{
	acpi_status status = AE_OK;
	struct acpi_table_header *dsdt = NULL;
	ssize_t res;

	status = acpi_get_table(ACPI_SIG_DSDT, 1, &dsdt);
	if (ACPI_FAILURE(status))
		return -ENODEV;

	res = simple_read_from_buffer(buffer, count, ppos, dsdt, dsdt->length);

	return res;
}

static ssize_t acpi_system_read_fadt(struct file *, char __user *, size_t,
				     loff_t *);

static const struct file_operations acpi_system_fadt_ops = {
	.owner = THIS_MODULE,
	.read = acpi_system_read_fadt,
};

static ssize_t
acpi_system_read_fadt(struct file *file,
		      char __user * buffer, size_t count, loff_t * ppos)
{
	acpi_status status = AE_OK;
	struct acpi_table_header *fadt = NULL;
	ssize_t res;

	status = acpi_get_table(ACPI_SIG_FADT, 1, &fadt);
	if (ACPI_FAILURE(status))
		return -ENODEV;

	res = simple_read_from_buffer(buffer, count, ppos, fadt, fadt->length);

	return res;
}

static int acpi_system_procfs_init(void)
{
	struct proc_dir_entry *entry;
	int error = 0;

	/* 'info' [R] */
	entry = proc_create(ACPI_SYSTEM_FILE_INFO, S_IRUGO, acpi_root_dir,
			    &acpi_system_info_ops);
	if (!entry)
		goto Error;

	/* 'dsdt' [R] */
	entry = proc_create(ACPI_SYSTEM_FILE_DSDT, S_IRUSR, acpi_root_dir,
			    &acpi_system_dsdt_ops);
	if (!entry)
		goto Error;

	/* 'fadt' [R] */
	entry = proc_create(ACPI_SYSTEM_FILE_FADT, S_IRUSR, acpi_root_dir,
			    &acpi_system_fadt_ops);
	if (!entry)
		goto Error;

      Done:
	return error;

      Error:
	remove_proc_entry(ACPI_SYSTEM_FILE_FADT, acpi_root_dir);
	remove_proc_entry(ACPI_SYSTEM_FILE_DSDT, acpi_root_dir);
	remove_proc_entry(ACPI_SYSTEM_FILE_INFO, acpi_root_dir);

	error = -EFAULT;
	goto Done;
}
#else
static int acpi_system_procfs_init(void)
{
	return 0;
}
#endif

int __init acpi_system_init(void)
{
	int result;

	result = acpi_system_procfs_init();
	if (result)
		return result;

	result = acpi_system_sysfs_init();

	return result;
}