Annotation of /trunk/kernel26-xen/patches-2.6.25-r1/0156-2.6.25-linux-phc-0.3.1-teknohog.patch
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Revision 606 -
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Thu May 22 23:13:13 2008 UTC (16 years, 5 months ago) by niro
File size: 15454 byte(s)
Thu May 22 23:13:13 2008 UTC (16 years, 5 months ago) by niro
File size: 15454 byte(s)
-ver bump to 2.6.25-magellan-r1: - linux-2.6.25.4 - fbcondecor-0.9.4 - squashfs-3.3 - unionfs-2.3.3 - tuxonice-3.0-rc7 - linux-phc-0.3.0 - acpi-dstd-0.9a - reiser4 - xen-3.2.0 . ipw3945-1.2.2
1 | niro | 606 | patch comming from: |
2 | http://hoo.homeunix.net/~teknohog/hacks/linux-phc-kernel-vanilla-2.6.25-teknohog.patch | ||
3 | |||
4 | --- linux-2.6.25/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c 2008-04-17 05:49:44.000000000 +0300 | ||
5 | +++ linux-2.6.25-teknohog/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c 2008-04-21 01:13:12.000000000 +0300 | ||
6 | @@ -23,10 +23,16 @@ | ||
7 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | ||
8 | * | ||
9 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ||
10 | */ | ||
11 | |||
12 | +/* This file has been patched with Linux PHC: https://www.dedigentoo.org/trac/linux-phc | ||
13 | + * Patch version: linux-phc-0.3.1-kernel-vanilla-2.6.23.patch | ||
14 | + * Updated for Linux 2.6.25 by Risto A. Paju, teknohog at iki.fi | ||
15 | + */ | ||
16 | + | ||
17 | + | ||
18 | #include <linux/kernel.h> | ||
19 | #include <linux/module.h> | ||
20 | #include <linux/init.h> | ||
21 | #include <linux/smp.h> | ||
22 | #include <linux/sched.h> | ||
23 | @@ -57,16 +63,22 @@ | ||
24 | }; | ||
25 | |||
26 | #define INTEL_MSR_RANGE (0xffff) | ||
27 | #define CPUID_6_ECX_APERFMPERF_CAPABILITY (0x1) | ||
28 | |||
29 | +#define INTEL_MSR_VID_MASK (0x00ff) | ||
30 | +#define INTEL_MSR_FID_MASK (0xff00) | ||
31 | +#define INTEL_MSR_FID_SHIFT (0x8) | ||
32 | +#define PHC_VERSION_STRING "0.3.1:1" | ||
33 | + | ||
34 | struct acpi_cpufreq_data { | ||
35 | struct acpi_processor_performance *acpi_data; | ||
36 | struct cpufreq_frequency_table *freq_table; | ||
37 | unsigned int max_freq; | ||
38 | unsigned int resume; | ||
39 | unsigned int cpu_feature; | ||
40 | + acpi_integer *original_controls; | ||
41 | }; | ||
42 | |||
43 | static DEFINE_PER_CPU(struct acpi_cpufreq_data *, drv_data); | ||
44 | |||
45 | /* acpi_perf_data is a pointer to percpu data. */ | ||
46 | @@ -102,17 +114,19 @@ | ||
47 | } | ||
48 | |||
49 | static unsigned extract_msr(u32 msr, struct acpi_cpufreq_data *data) | ||
50 | { | ||
51 | int i; | ||
52 | + u32 fid; | ||
53 | struct acpi_processor_performance *perf; | ||
54 | |||
55 | - msr &= INTEL_MSR_RANGE; | ||
56 | + fid = msr & INTEL_MSR_FID_MASK; | ||
57 | perf = data->acpi_data; | ||
58 | |||
59 | for (i=0; data->freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { | ||
60 | - if (msr == perf->states[data->freq_table[i].index].status) | ||
61 | + if (fid == (perf->states[data->freq_table[i].index].status & | ||
62 | + INTEL_MSR_FID_MASK)) | ||
63 | return data->freq_table[i].frequency; | ||
64 | } | ||
65 | return data->freq_table[0].frequency; | ||
66 | } | ||
67 | |||
68 | @@ -729,10 +743,12 @@ | ||
69 | if (data) { | ||
70 | cpufreq_frequency_table_put_attr(policy->cpu); | ||
71 | per_cpu(drv_data, policy->cpu) = NULL; | ||
72 | acpi_processor_unregister_performance(data->acpi_data, | ||
73 | policy->cpu); | ||
74 | + if (data->original_controls) | ||
75 | + kfree(data->original_controls); | ||
76 | kfree(data); | ||
77 | } | ||
78 | |||
79 | return 0; | ||
80 | } | ||
81 | @@ -746,12 +762,452 @@ | ||
82 | data->resume = 1; | ||
83 | |||
84 | return 0; | ||
85 | } | ||
86 | |||
87 | + | ||
88 | + | ||
89 | + | ||
90 | +/* sysfs interface to change operating points voltages */ | ||
91 | + | ||
92 | +static unsigned int extract_fid_from_control(unsigned int control) | ||
93 | +{ | ||
94 | + return ((control & INTEL_MSR_FID_MASK) >> INTEL_MSR_FID_SHIFT); | ||
95 | +} | ||
96 | + | ||
97 | +static unsigned int extract_vid_from_control(unsigned int control) | ||
98 | +{ | ||
99 | + return (control & INTEL_MSR_VID_MASK); | ||
100 | +} | ||
101 | + | ||
102 | +static ssize_t check_origial_table (struct acpi_cpufreq_data *data) | ||
103 | +{ | ||
104 | + struct acpi_processor_performance *acpi_data; | ||
105 | + struct cpufreq_frequency_table *freq_table; | ||
106 | + unsigned int state_index; | ||
107 | + | ||
108 | + acpi_data = data->acpi_data; | ||
109 | + freq_table = data->freq_table; | ||
110 | + | ||
111 | + if (data->original_controls == NULL) { | ||
112 | + // Backup original control values | ||
113 | + data->original_controls = kcalloc(acpi_data->state_count, | ||
114 | + sizeof(acpi_integer), GFP_KERNEL); | ||
115 | + if (data->original_controls == NULL) { | ||
116 | + printk("failed to allocate memory for original control values\n"); | ||
117 | + return -ENOMEM; | ||
118 | + } | ||
119 | + for (state_index = 0; state_index < acpi_data->state_count; state_index++) { | ||
120 | + data->original_controls[state_index] = acpi_data->states[state_index].control; | ||
121 | + } | ||
122 | + } | ||
123 | + return 0; | ||
124 | +} | ||
125 | + | ||
126 | +static ssize_t show_freq_attr_vids(struct cpufreq_policy *policy, char *buf) | ||
127 | +{ | ||
128 | + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); | ||
129 | + struct acpi_processor_performance *acpi_data; | ||
130 | + struct cpufreq_frequency_table *freq_table; | ||
131 | + unsigned int i; | ||
132 | + unsigned int vid; | ||
133 | + ssize_t count = 0; | ||
134 | + | ||
135 | + if (unlikely(data == NULL || | ||
136 | + data->acpi_data == NULL || | ||
137 | + data->freq_table == NULL || | ||
138 | + data->cpu_feature != SYSTEM_INTEL_MSR_CAPABLE)) { | ||
139 | + return -ENODEV; | ||
140 | + } | ||
141 | + | ||
142 | + acpi_data = data->acpi_data; | ||
143 | + freq_table = data->freq_table; | ||
144 | + | ||
145 | + for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { | ||
146 | + vid = extract_vid_from_control(acpi_data->states[freq_table[i].index].control); | ||
147 | + count += sprintf(&buf[count], "%u ", vid); | ||
148 | + } | ||
149 | + count += sprintf(&buf[count], "\n"); | ||
150 | + | ||
151 | + return count; | ||
152 | +} | ||
153 | + | ||
154 | +static ssize_t show_freq_attr_default_vids(struct cpufreq_policy *policy, char *buf) | ||
155 | +{ | ||
156 | + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); | ||
157 | + struct cpufreq_frequency_table *freq_table; | ||
158 | + unsigned int i; | ||
159 | + unsigned int vid; | ||
160 | + ssize_t count = 0; | ||
161 | + ssize_t retval; | ||
162 | + | ||
163 | + if (unlikely(data == NULL || | ||
164 | + data->acpi_data == NULL || | ||
165 | + data->freq_table == NULL || | ||
166 | + data->cpu_feature != SYSTEM_INTEL_MSR_CAPABLE)) { | ||
167 | + return -ENODEV; | ||
168 | + } | ||
169 | + | ||
170 | + retval = check_origial_table(data); | ||
171 | + if (0 != retval) | ||
172 | + return retval; | ||
173 | + | ||
174 | + freq_table = data->freq_table; | ||
175 | + | ||
176 | + for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { | ||
177 | + vid = extract_vid_from_control(data->original_controls[freq_table[i].index]); | ||
178 | + count += sprintf(&buf[count], "%u ", vid); | ||
179 | + } | ||
180 | + count += sprintf(&buf[count], "\n"); | ||
181 | + | ||
182 | + return count; | ||
183 | +} | ||
184 | + | ||
185 | +static ssize_t show_freq_attr_fids(struct cpufreq_policy *policy, char *buf) | ||
186 | +{ | ||
187 | + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); | ||
188 | + struct acpi_processor_performance *acpi_data; | ||
189 | + struct cpufreq_frequency_table *freq_table; | ||
190 | + unsigned int i; | ||
191 | + unsigned int fid; | ||
192 | + ssize_t count = 0; | ||
193 | + | ||
194 | + if (unlikely(data == NULL || | ||
195 | + data->acpi_data == NULL || | ||
196 | + data->freq_table == NULL || | ||
197 | + data->cpu_feature != SYSTEM_INTEL_MSR_CAPABLE)) { | ||
198 | + return -ENODEV; | ||
199 | + } | ||
200 | + | ||
201 | + acpi_data = data->acpi_data; | ||
202 | + freq_table = data->freq_table; | ||
203 | + | ||
204 | + for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { | ||
205 | + fid = extract_fid_from_control(acpi_data->states[freq_table[i].index].control); | ||
206 | + count += sprintf(&buf[count], "%u ", fid); | ||
207 | + } | ||
208 | + count += sprintf(&buf[count], "\n"); | ||
209 | + | ||
210 | + return count; | ||
211 | +} | ||
212 | + | ||
213 | +static ssize_t show_freq_attr_controls(struct cpufreq_policy *policy, char *buf) | ||
214 | +{ | ||
215 | + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); | ||
216 | + struct acpi_processor_performance *acpi_data; | ||
217 | + struct cpufreq_frequency_table *freq_table; | ||
218 | + unsigned int i; | ||
219 | + unsigned int fid; | ||
220 | + unsigned int vid; | ||
221 | + ssize_t count = 0; | ||
222 | + | ||
223 | + if (unlikely(data == NULL || | ||
224 | + data->acpi_data == NULL || | ||
225 | + data->freq_table == NULL || | ||
226 | + data->cpu_feature != SYSTEM_INTEL_MSR_CAPABLE)) { | ||
227 | + return -ENODEV; | ||
228 | + } | ||
229 | + | ||
230 | + acpi_data = data->acpi_data; | ||
231 | + freq_table = data->freq_table; | ||
232 | + | ||
233 | + for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { | ||
234 | + fid = extract_fid_from_control(acpi_data->states[freq_table[i].index].control); | ||
235 | + vid = extract_vid_from_control(acpi_data->states[freq_table[i].index].control); | ||
236 | + count += sprintf(&buf[count], "%u:%u ", fid, vid); | ||
237 | + } | ||
238 | + count += sprintf(&buf[count], "\n"); | ||
239 | + | ||
240 | + return count; | ||
241 | +} | ||
242 | + | ||
243 | +static ssize_t show_freq_attr_default_controls(struct cpufreq_policy *policy, char *buf) | ||
244 | +{ | ||
245 | + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); | ||
246 | + struct cpufreq_frequency_table *freq_table; | ||
247 | + unsigned int i; | ||
248 | + unsigned int fid; | ||
249 | + unsigned int vid; | ||
250 | + ssize_t count = 0; | ||
251 | + ssize_t retval; | ||
252 | + | ||
253 | + if (unlikely(data == NULL || | ||
254 | + data->acpi_data == NULL || | ||
255 | + data->freq_table == NULL || | ||
256 | + data->cpu_feature != SYSTEM_INTEL_MSR_CAPABLE)) { | ||
257 | + return -ENODEV; | ||
258 | + } | ||
259 | + | ||
260 | + retval = check_origial_table(data); | ||
261 | + if (0 != retval) | ||
262 | + return retval; | ||
263 | + | ||
264 | + freq_table = data->freq_table; | ||
265 | + | ||
266 | + for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { | ||
267 | + fid = extract_fid_from_control(data->original_controls[freq_table[i].index]); | ||
268 | + vid = extract_vid_from_control(data->original_controls[freq_table[i].index]); | ||
269 | + count += sprintf(&buf[count], "%u:%u ", fid, vid); | ||
270 | + } | ||
271 | + count += sprintf(&buf[count], "\n"); | ||
272 | + | ||
273 | + return count; | ||
274 | +} | ||
275 | + | ||
276 | + | ||
277 | +static ssize_t store_freq_attr_vids(struct cpufreq_policy *policy, const char *buf, size_t count) | ||
278 | +{ | ||
279 | + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); | ||
280 | + struct acpi_processor_performance *acpi_data; | ||
281 | + struct cpufreq_frequency_table *freq_table; | ||
282 | + unsigned int freq_index; | ||
283 | + unsigned int state_index; | ||
284 | + unsigned int new_vid; | ||
285 | + unsigned int original_vid; | ||
286 | + unsigned int new_control; | ||
287 | + unsigned int original_control; | ||
288 | + const char *curr_buf = buf; | ||
289 | + char *next_buf; | ||
290 | + ssize_t retval; | ||
291 | + | ||
292 | + if (unlikely(data == NULL || | ||
293 | + data->acpi_data == NULL || | ||
294 | + data->freq_table == NULL || | ||
295 | + data->cpu_feature != SYSTEM_INTEL_MSR_CAPABLE)) { | ||
296 | + return -ENODEV; | ||
297 | + } | ||
298 | + | ||
299 | + retval = check_origial_table(data); | ||
300 | + if (0 != retval) | ||
301 | + return retval; | ||
302 | + | ||
303 | + acpi_data = data->acpi_data; | ||
304 | + freq_table = data->freq_table; | ||
305 | + | ||
306 | + for (freq_index = 0; freq_table[freq_index].frequency != CPUFREQ_TABLE_END; freq_index++) { | ||
307 | + new_vid = simple_strtoul(curr_buf, &next_buf, 10); | ||
308 | + if (next_buf == curr_buf) { | ||
309 | + if ((curr_buf - buf == count - 1) && (*curr_buf == '\n')) { | ||
310 | + curr_buf++; | ||
311 | + break; | ||
312 | + } | ||
313 | + printk("failed to parse vid value at %i (%s)\n", freq_index, curr_buf); | ||
314 | + return -EINVAL; | ||
315 | + } | ||
316 | + | ||
317 | + state_index = freq_table[freq_index].index; | ||
318 | + original_control = data->original_controls[state_index]; | ||
319 | + original_vid = original_control & INTEL_MSR_VID_MASK; | ||
320 | + if (new_vid <= original_vid) { | ||
321 | + new_control = (original_control & ~INTEL_MSR_VID_MASK) | new_vid; | ||
322 | + dprintk("setting control at %i to %x (default is %x)\n", | ||
323 | + freq_index, new_control, original_control); | ||
324 | + acpi_data->states[state_index].control = new_control; | ||
325 | + | ||
326 | + } else { | ||
327 | + printk("skipping vid at %i, %u is greater than default %u\n", | ||
328 | + freq_index, new_vid, original_vid); | ||
329 | + } | ||
330 | + | ||
331 | + curr_buf = next_buf; | ||
332 | + while ((curr_buf - buf < count) && ((*curr_buf == ' ') || (*curr_buf == ','))) { | ||
333 | + curr_buf++; | ||
334 | + } | ||
335 | + } | ||
336 | + | ||
337 | + /* set new voltage at current frequency */ | ||
338 | + data->resume = 1; | ||
339 | + acpi_cpufreq_target(policy, get_cur_freq_on_cpu(policy->cpu), CPUFREQ_RELATION_L); | ||
340 | + | ||
341 | + return curr_buf - buf; | ||
342 | +} | ||
343 | + | ||
344 | +static ssize_t store_freq_attr_controls(struct cpufreq_policy *policy, const char *buf, size_t count) | ||
345 | +{ | ||
346 | + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); | ||
347 | + struct acpi_processor_performance *acpi_data; | ||
348 | + struct cpufreq_frequency_table *freq_table; | ||
349 | + const char *curr_buf; | ||
350 | + unsigned int op_count; | ||
351 | + unsigned int state_index; | ||
352 | + int isok; | ||
353 | + char *next_buf; | ||
354 | + ssize_t retval; | ||
355 | + unsigned int new_vid; | ||
356 | + unsigned int original_vid; | ||
357 | + unsigned int new_fid; | ||
358 | + unsigned int old_fid; | ||
359 | + unsigned int original_control; | ||
360 | + unsigned int old_control; | ||
361 | + unsigned int new_control; | ||
362 | + int found; | ||
363 | + | ||
364 | + if (unlikely(data == NULL || | ||
365 | + data->acpi_data == NULL || | ||
366 | + data->freq_table == NULL || | ||
367 | + data->cpu_feature != SYSTEM_INTEL_MSR_CAPABLE)) { | ||
368 | + return -ENODEV; | ||
369 | + } | ||
370 | + | ||
371 | + retval = check_origial_table(data); | ||
372 | + if (0 != retval) | ||
373 | + return retval; | ||
374 | + | ||
375 | + acpi_data = data->acpi_data; | ||
376 | + freq_table = data->freq_table; | ||
377 | + | ||
378 | + op_count = 0; | ||
379 | + curr_buf = buf; | ||
380 | + next_buf = NULL; | ||
381 | + isok = 1; | ||
382 | + | ||
383 | + while ( (isok) && (curr_buf != NULL) ) | ||
384 | + { | ||
385 | + op_count++; | ||
386 | + // Parse fid | ||
387 | + new_fid = simple_strtoul(curr_buf, &next_buf, 10); | ||
388 | + if ((next_buf != curr_buf) && (next_buf != NULL)) | ||
389 | + { | ||
390 | + // Parse separator between frequency and voltage | ||
391 | + curr_buf = next_buf; | ||
392 | + next_buf = NULL; | ||
393 | + if (*curr_buf==':') | ||
394 | + { | ||
395 | + curr_buf++; | ||
396 | + // Parse vid | ||
397 | + new_vid = simple_strtoul(curr_buf, &next_buf, 10); | ||
398 | + if ((next_buf != curr_buf) && (next_buf != NULL)) | ||
399 | + { | ||
400 | + found = 0; | ||
401 | + for (state_index = 0; state_index < acpi_data->state_count; state_index++) { | ||
402 | + old_control = acpi_data->states[state_index].control; | ||
403 | + old_fid = extract_fid_from_control(old_control); | ||
404 | + if (new_fid == old_fid) | ||
405 | + { | ||
406 | + found = 1; | ||
407 | + original_control = data->original_controls[state_index]; | ||
408 | + original_vid = extract_vid_from_control(original_control); | ||
409 | + if (new_vid <= original_vid) | ||
410 | + { | ||
411 | + new_control = (original_control & ~INTEL_MSR_VID_MASK) | new_vid; | ||
412 | + dprintk("setting control at %i to %x (default is %x)\n", | ||
413 | + state_index, new_control, original_control); | ||
414 | + acpi_data->states[state_index].control = new_control; | ||
415 | + | ||
416 | + } else { | ||
417 | + printk("skipping vid at %i, %u is greater than default %u\n", | ||
418 | + state_index, new_vid, original_vid); | ||
419 | + } | ||
420 | + } | ||
421 | + } | ||
422 | + | ||
423 | + if (found == 0) | ||
424 | + { | ||
425 | + printk("operating point # %u not found (FID = %u)\n", op_count, new_fid); | ||
426 | + isok = 0; | ||
427 | + } | ||
428 | + | ||
429 | + // Parse seprator before next operating point, if any | ||
430 | + curr_buf = next_buf; | ||
431 | + next_buf = NULL; | ||
432 | + if ((*curr_buf == ',') || (*curr_buf == ' ')) | ||
433 | + curr_buf++; | ||
434 | + else | ||
435 | + curr_buf = NULL; | ||
436 | + } | ||
437 | + else | ||
438 | + { | ||
439 | + printk("failed to parse VID of operating point # %u (%s)\n", op_count, curr_buf); | ||
440 | + isok = 0; | ||
441 | + } | ||
442 | + } | ||
443 | + else | ||
444 | + { | ||
445 | + printk("failed to parse operating point # %u (%s)\n", op_count, curr_buf); | ||
446 | + isok = 0; | ||
447 | + } | ||
448 | + } | ||
449 | + else | ||
450 | + { | ||
451 | + printk("failed to parse FID of operating point # %u (%s)\n", op_count, curr_buf); | ||
452 | + isok = 0; | ||
453 | + } | ||
454 | + } | ||
455 | + | ||
456 | + if (isok) | ||
457 | + { | ||
458 | + retval = count; | ||
459 | + /* set new voltage at current frequency */ | ||
460 | + data->resume = 1; | ||
461 | + acpi_cpufreq_target(policy, get_cur_freq_on_cpu(policy->cpu), CPUFREQ_RELATION_L); | ||
462 | + } | ||
463 | + else | ||
464 | + { | ||
465 | + retval = -EINVAL; | ||
466 | + } | ||
467 | + | ||
468 | + return retval; | ||
469 | +} | ||
470 | + | ||
471 | +static ssize_t show_freq_attr_phc_version(struct cpufreq_policy *policy, char *buf) | ||
472 | +{ | ||
473 | + ssize_t count = 0; | ||
474 | + count += sprintf(&buf[count], "%s\n", PHC_VERSION_STRING); | ||
475 | + return count; | ||
476 | +} | ||
477 | + | ||
478 | +static struct freq_attr cpufreq_freq_attr_phc_version = | ||
479 | +{ | ||
480 | + .attr = { .name = "phc_version", .mode = 0444, .owner = THIS_MODULE }, | ||
481 | + .show = show_freq_attr_phc_version, | ||
482 | + .store = NULL, | ||
483 | +}; | ||
484 | + | ||
485 | +static struct freq_attr cpufreq_freq_attr_vids = | ||
486 | +{ | ||
487 | + .attr = { .name = "phc_vids", .mode = 0644, .owner = THIS_MODULE }, | ||
488 | + .show = show_freq_attr_vids, | ||
489 | + .store = store_freq_attr_vids, | ||
490 | +}; | ||
491 | + | ||
492 | +static struct freq_attr cpufreq_freq_attr_default_vids = | ||
493 | +{ | ||
494 | + .attr = { .name = "phc_default_vids", .mode = 0444, .owner = THIS_MODULE }, | ||
495 | + .show = show_freq_attr_default_vids, | ||
496 | + .store = NULL, | ||
497 | +}; | ||
498 | + | ||
499 | +static struct freq_attr cpufreq_freq_attr_fids = | ||
500 | +{ | ||
501 | + .attr = { .name = "phc_fids", .mode = 0444, .owner = THIS_MODULE }, | ||
502 | + .show = show_freq_attr_fids, | ||
503 | + .store = NULL, | ||
504 | +}; | ||
505 | + | ||
506 | +static struct freq_attr cpufreq_freq_attr_controls = | ||
507 | +{ | ||
508 | + .attr = { .name = "phc_controls", .mode = 0644, .owner = THIS_MODULE }, | ||
509 | + .show = show_freq_attr_controls, | ||
510 | + .store = store_freq_attr_controls, | ||
511 | +}; | ||
512 | + | ||
513 | +static struct freq_attr cpufreq_freq_attr_default_controls = | ||
514 | +{ | ||
515 | + .attr = { .name = "phc_default_controls", .mode = 0444, .owner = THIS_MODULE }, | ||
516 | + .show = show_freq_attr_default_controls, | ||
517 | + .store = NULL, | ||
518 | +}; | ||
519 | + | ||
520 | + | ||
521 | static struct freq_attr *acpi_cpufreq_attr[] = { | ||
522 | + &cpufreq_freq_attr_phc_version, | ||
523 | &cpufreq_freq_attr_scaling_available_freqs, | ||
524 | + &cpufreq_freq_attr_vids, | ||
525 | + &cpufreq_freq_attr_default_vids, | ||
526 | + &cpufreq_freq_attr_fids, | ||
527 | + &cpufreq_freq_attr_controls, | ||
528 | + &cpufreq_freq_attr_default_controls, | ||
529 | NULL, | ||
530 | }; | ||
531 | |||
532 | static struct cpufreq_driver acpi_cpufreq_driver = { | ||
533 | .verify = acpi_cpufreq_verify, |