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xmw 11/01/05 19:19:13 |
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|
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Added: phc-intel-0.3.2.12.1-2.6.37.patch |
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Log: |
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New patch set for kernel 2.6.37 |
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|
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(Portage version: 2.1.9.25/cvs/Linux x86_64) |
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|
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Revision Changes Path |
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1.1 sys-power/phc-intel/files/phc-intel-0.3.2.12.1-2.6.37.patch |
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|
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file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-power/phc-intel/files/phc-intel-0.3.2.12.1-2.6.37.patch?rev=1.1&view=markup |
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plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-power/phc-intel/files/phc-intel-0.3.2.12.1-2.6.37.patch?rev=1.1&content-type=text/plain |
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|
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Index: phc-intel-0.3.2.12.1-2.6.37.patch |
16 |
=================================================================== |
17 |
--- linux-2.6.37-gentoo/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c |
18 |
+++ phc-intel-0.3.2-12-1/inc/2.6.37/acpi-cpufreq.c |
19 |
@@ -25,6 +25,10 @@ |
20 |
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
21 |
*/ |
22 |
|
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+/* This file has been patched with Linux PHC: www.linux-phc.org |
24 |
+* Patch version: linux-phc-0.3.2 |
25 |
+*/ |
26 |
+ |
27 |
#include <linux/kernel.h> |
28 |
#include <linux/module.h> |
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#include <linux/init.h> |
30 |
@@ -61,12 +65,17 @@ |
31 |
}; |
32 |
|
33 |
#define INTEL_MSR_RANGE (0xffff) |
34 |
+#define INTEL_MSR_VID_MASK (0x00ff) |
35 |
+#define INTEL_MSR_FID_MASK (0xff00) |
36 |
+#define INTEL_MSR_FID_SHIFT (0x8) |
37 |
+#define PHC_VERSION_STRING "0.3.2:2" |
38 |
|
39 |
struct acpi_cpufreq_data { |
40 |
struct acpi_processor_performance *acpi_data; |
41 |
struct cpufreq_frequency_table *freq_table; |
42 |
unsigned int resume; |
43 |
unsigned int cpu_feature; |
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+ acpi_integer *original_controls; |
45 |
}; |
46 |
|
47 |
static DEFINE_PER_CPU(struct acpi_cpufreq_data *, acfreq_data); |
48 |
@@ -102,13 +111,14 @@ |
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 & INTEL_MSR_FID_MASK)) |
62 |
return data->freq_table[i].frequency; |
63 |
} |
64 |
return data->freq_table[0].frequency; |
65 |
@@ -701,6 +711,8 @@ |
66 |
per_cpu(acfreq_data, policy->cpu) = NULL; |
67 |
acpi_processor_unregister_performance(data->acpi_data, |
68 |
policy->cpu); |
69 |
+ if (data->original_controls) |
70 |
+ kfree(data->original_controls); |
71 |
kfree(data->freq_table); |
72 |
kfree(data); |
73 |
} |
74 |
@@ -719,8 +731,470 @@ |
75 |
return 0; |
76 |
} |
77 |
|
78 |
+/* sysfs interface to change operating points voltages */ |
79 |
+ |
80 |
+static unsigned int extract_fid_from_control(unsigned int control) |
81 |
+{ |
82 |
+ return ((control & INTEL_MSR_FID_MASK) >> INTEL_MSR_FID_SHIFT); |
83 |
+} |
84 |
+ |
85 |
+static unsigned int extract_vid_from_control(unsigned int control) |
86 |
+{ |
87 |
+ return (control & INTEL_MSR_VID_MASK); |
88 |
+} |
89 |
+ |
90 |
+ |
91 |
+static bool check_cpu_control_capability(struct acpi_cpufreq_data *data) { |
92 |
+ /* check if the cpu we are running on is capable of setting new control data |
93 |
+ * |
94 |
+ */ |
95 |
+ if (unlikely(data == NULL || |
96 |
+ data->acpi_data == NULL || |
97 |
+ data->freq_table == NULL || |
98 |
+ data->cpu_feature != SYSTEM_INTEL_MSR_CAPABLE)) { |
99 |
+ return false; |
100 |
+ } else { |
101 |
+ return true; |
102 |
+ }; |
103 |
+} |
104 |
+ |
105 |
+ |
106 |
+static ssize_t check_origial_table (struct acpi_cpufreq_data *data) |
107 |
+{ |
108 |
+ |
109 |
+ struct acpi_processor_performance *acpi_data; |
110 |
+ struct cpufreq_frequency_table *freq_table; |
111 |
+ unsigned int state_index; |
112 |
+ |
113 |
+ acpi_data = data->acpi_data; |
114 |
+ freq_table = data->freq_table; |
115 |
+ |
116 |
+ if (data->original_controls == NULL) { |
117 |
+ // Backup original control values |
118 |
+ data->original_controls = kcalloc(acpi_data->state_count, |
119 |
+ sizeof(acpi_integer), GFP_KERNEL); |
120 |
+ if (data->original_controls == NULL) { |
121 |
+ printk("failed to allocate memory for original control values\n"); |
122 |
+ return -ENOMEM; |
123 |
+ } |
124 |
+ for (state_index = 0; state_index < acpi_data->state_count; state_index++) { |
125 |
+ data->original_controls[state_index] = acpi_data->states[state_index].control; |
126 |
+ } |
127 |
+ } |
128 |
+ return 0; |
129 |
+} |
130 |
+ |
131 |
+static ssize_t show_freq_attr_vids(struct cpufreq_policy *policy, char *buf) |
132 |
+ /* display phc's voltage id's |
133 |
+ * |
134 |
+ */ |
135 |
+{ |
136 |
+ struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu); |
137 |
+ struct acpi_processor_performance *acpi_data; |
138 |
+ struct cpufreq_frequency_table *freq_table; |
139 |
+ unsigned int i; |
140 |
+ unsigned int vid; |
141 |
+ ssize_t count = 0; |
142 |
+ |
143 |
+ if (!check_cpu_control_capability(data)) return -ENODEV; //check if CPU is capable of changing controls |
144 |
+ |
145 |
+ acpi_data = data->acpi_data; |
146 |
+ freq_table = data->freq_table; |
147 |
+ |
148 |
+ for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { |
149 |
+ vid = extract_vid_from_control(acpi_data->states[freq_table[i].index].control); |
150 |
+ count += sprintf(&buf[count], "%u ", vid); |
151 |
+ } |
152 |
+ count += sprintf(&buf[count], "\n"); |
153 |
+ |
154 |
+ return count; |
155 |
+} |
156 |
+ |
157 |
+static ssize_t show_freq_attr_default_vids(struct cpufreq_policy *policy, char *buf) |
158 |
+ /* display acpi's default voltage id's |
159 |
+ * |
160 |
+ */ |
161 |
+{ |
162 |
+ struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu); |
163 |
+ struct cpufreq_frequency_table *freq_table; |
164 |
+ unsigned int i; |
165 |
+ unsigned int vid; |
166 |
+ ssize_t count = 0; |
167 |
+ ssize_t retval; |
168 |
+ |
169 |
+ if (!check_cpu_control_capability(data)) return -ENODEV; //check if CPU is capable of changing controls |
170 |
+ |
171 |
+ retval = check_origial_table(data); |
172 |
+ if (0 != retval) |
173 |
+ return retval; |
174 |
+ |
175 |
+ freq_table = data->freq_table; |
176 |
+ |
177 |
+ for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { |
178 |
+ vid = extract_vid_from_control(data->original_controls[freq_table[i].index]); |
179 |
+ count += sprintf(&buf[count], "%u ", vid); |
180 |
+ } |
181 |
+ count += sprintf(&buf[count], "\n"); |
182 |
+ |
183 |
+ return count; |
184 |
+} |
185 |
+ |
186 |
+static ssize_t show_freq_attr_fids(struct cpufreq_policy *policy, char *buf) |
187 |
+ /* display phc's frequeny id's |
188 |
+ * |
189 |
+ */ |
190 |
+{ |
191 |
+ struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu); |
192 |
+ struct acpi_processor_performance *acpi_data; |
193 |
+ struct cpufreq_frequency_table *freq_table; |
194 |
+ unsigned int i; |
195 |
+ unsigned int fid; |
196 |
+ ssize_t count = 0; |
197 |
+ |
198 |
+ if (!check_cpu_control_capability(data)) return -ENODEV; //check if CPU is capable of changing controls |
199 |
+ |
200 |
+ acpi_data = data->acpi_data; |
201 |
+ freq_table = data->freq_table; |
202 |
+ |
203 |
+ for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { |
204 |
+ fid = extract_fid_from_control(acpi_data->states[freq_table[i].index].control); |
205 |
+ count += sprintf(&buf[count], "%u ", fid); |
206 |
+ } |
207 |
+ count += sprintf(&buf[count], "\n"); |
208 |
+ |
209 |
+ return count; |
210 |
+} |
211 |
+ |
212 |
+static ssize_t show_freq_attr_controls(struct cpufreq_policy *policy, char *buf) |
213 |
+ /* display phc's controls for the cpu (frequency id's and related voltage id's) |
214 |
+ * |
215 |
+ */ |
216 |
+{ |
217 |
+ struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu); |
218 |
+ struct acpi_processor_performance *acpi_data; |
219 |
+ struct cpufreq_frequency_table *freq_table; |
220 |
+ unsigned int i; |
221 |
+ unsigned int fid; |
222 |
+ unsigned int vid; |
223 |
+ ssize_t count = 0; |
224 |
+ |
225 |
+ if (!check_cpu_control_capability(data)) return -ENODEV; //check if CPU is capable of changing controls |
226 |
+ |
227 |
+ acpi_data = data->acpi_data; |
228 |
+ freq_table = data->freq_table; |
229 |
+ |
230 |
+ for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { |
231 |
+ fid = extract_fid_from_control(acpi_data->states[freq_table[i].index].control); |
232 |
+ vid = extract_vid_from_control(acpi_data->states[freq_table[i].index].control); |
233 |
+ count += sprintf(&buf[count], "%u:%u ", fid, vid); |
234 |
+ } |
235 |
+ count += sprintf(&buf[count], "\n"); |
236 |
+ |
237 |
+ return count; |
238 |
+} |
239 |
+ |
240 |
+static ssize_t show_freq_attr_default_controls(struct cpufreq_policy *policy, char *buf) |
241 |
+ /* display acpi's default controls for the cpu (frequency id's and related voltage id's) |
242 |
+ * |
243 |
+ */ |
244 |
+{ |
245 |
+ struct acpi_cpufreq_data *data = per_cpu(acfreq_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 (!check_cpu_control_capability(data)) return -ENODEV; //check if CPU is capable of changing controls |
254 |
+ |
255 |
+ retval = check_origial_table(data); |
256 |
+ if (0 != retval) |
257 |
+ return retval; |
258 |
+ |
259 |
+ freq_table = data->freq_table; |
260 |
+ |
261 |
+ for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { |
262 |
+ fid = extract_fid_from_control(data->original_controls[freq_table[i].index]); |
263 |
+ vid = extract_vid_from_control(data->original_controls[freq_table[i].index]); |
264 |
+ count += sprintf(&buf[count], "%u:%u ", fid, vid); |
265 |
+ } |
266 |
+ count += sprintf(&buf[count], "\n"); |
267 |
+ |
268 |
+ return count; |
269 |
+} |
270 |
+ |
271 |
+ |
272 |
+static ssize_t store_freq_attr_vids(struct cpufreq_policy *policy, const char *buf, size_t count) |
273 |
+ /* store the voltage id's for the related frequency |
274 |
+ * We are going to do some sanity checks here to prevent users |
275 |
+ * from setting higher voltages than the default one. |
276 |
+ */ |
277 |
+{ |
278 |
+ struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu); |
279 |
+ struct acpi_processor_performance *acpi_data; |
280 |
+ struct cpufreq_frequency_table *freq_table; |
281 |
+ unsigned int freq_index; |
282 |
+ unsigned int state_index; |
283 |
+ unsigned int new_vid; |
284 |
+ unsigned int original_vid; |
285 |
+ unsigned int new_control; |
286 |
+ unsigned int original_control; |
287 |
+ const char *curr_buf = buf; |
288 |
+ char *next_buf; |
289 |
+ ssize_t retval; |
290 |
+ |
291 |
+ if (!check_cpu_control_capability(data)) return -ENODEV; //check if CPU is capable of changing controls |
292 |
+ |
293 |
+ retval = check_origial_table(data); |
294 |
+ if (0 != retval) |
295 |
+ return retval; |
296 |
+ |
297 |
+ acpi_data = data->acpi_data; |
298 |
+ freq_table = data->freq_table; |
299 |
+ |
300 |
+ /* for each value taken from the sysfs interfalce (phc_vids) get entrys and convert them to unsigned long integers*/ |
301 |
+ for (freq_index = 0; freq_table[freq_index].frequency != CPUFREQ_TABLE_END; freq_index++) { |
302 |
+ new_vid = simple_strtoul(curr_buf, &next_buf, 10); |
303 |
+ if (next_buf == curr_buf) { |
304 |
+ if ((curr_buf - buf == count - 1) && (*curr_buf == '\n')) { //end of line? |
305 |
+ curr_buf++; |
306 |
+ break; |
307 |
+ } |
308 |
+ //if we didn't got end of line but there is nothing more to read something went wrong... |
309 |
+ printk("failed to parse vid value at %i (%s)\n", freq_index, curr_buf); |
310 |
+ return -EINVAL; |
311 |
+ } |
312 |
+ |
313 |
+ state_index = freq_table[freq_index].index; |
314 |
+ original_control = data->original_controls[state_index]; |
315 |
+ original_vid = original_control & INTEL_MSR_VID_MASK; |
316 |
+ |
317 |
+ /* before we store the values we do some checks to prevent |
318 |
+ * users to set up values higher than the default one |
319 |
+ */ |
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 |
+ /* jump over value seperators (space or comma). |
333 |
+ * There could be more than one space or comma character |
334 |
+ * to separate two values so we better do it using a loop. |
335 |
+ */ |
336 |
+ while ((curr_buf - buf < count) && ((*curr_buf == ' ') || (*curr_buf == ','))) { |
337 |
+ curr_buf++; |
338 |
+ } |
339 |
+ } |
340 |
+ |
341 |
+ /* set new voltage for current frequency */ |
342 |
+ data->resume = 1; |
343 |
+ acpi_cpufreq_target(policy, get_cur_freq_on_cpu(policy->cpu), CPUFREQ_RELATION_L); |
344 |
+ |
345 |
+ return curr_buf - buf; |
346 |
+} |
347 |
+ |
348 |
+static ssize_t store_freq_attr_controls(struct cpufreq_policy *policy, const char *buf, size_t count) |
349 |
+ /* store the controls (frequency id's and related voltage id's) |
350 |
+ * We are going to do some sanity checks here to prevent users |
351 |
+ * from setting higher voltages than the default one. |
352 |
+ */ |
353 |
+{ |
354 |
+ struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu); |
355 |
+ struct acpi_processor_performance *acpi_data; |
356 |
+ struct cpufreq_frequency_table *freq_table; |
357 |
+ const char *curr_buf; |
358 |
+ unsigned int op_count; |
359 |
+ unsigned int state_index; |
360 |
+ int isok; |
361 |
+ char *next_buf; |
362 |
+ ssize_t retval; |
363 |
+ unsigned int new_vid; |
364 |
+ unsigned int original_vid; |
365 |
+ unsigned int new_fid; |
366 |
+ unsigned int old_fid; |
367 |
+ unsigned int original_control; |
368 |
+ unsigned int old_control; |
369 |
+ unsigned int new_control; |
370 |
+ int found; |
371 |
+ |
372 |
+ if (!check_cpu_control_capability(data)) return -ENODEV; |
373 |
+ |
374 |
+ retval = check_origial_table(data); |
375 |
+ if (0 != retval) |
376 |
+ return retval; |
377 |
+ |
378 |
+ acpi_data = data->acpi_data; |
379 |
+ freq_table = data->freq_table; |
380 |
+ |
381 |
+ op_count = 0; |
382 |
+ curr_buf = buf; |
383 |
+ next_buf = NULL; |
384 |
+ isok = 1; |
385 |
+ |
386 |
+ while ( (isok) && (curr_buf != NULL) ) |
387 |
+ { |
388 |
+ op_count++; |
389 |
+ // Parse fid |
390 |
+ new_fid = simple_strtoul(curr_buf, &next_buf, 10); |
391 |
+ if ((next_buf != curr_buf) && (next_buf != NULL)) |
392 |
+ { |
393 |
+ // Parse separator between frequency and voltage |
394 |
+ curr_buf = next_buf; |
395 |
+ next_buf = NULL; |
396 |
+ if (*curr_buf==':') |
397 |
+ { |
398 |
+ curr_buf++; |
399 |
+ // Parse vid |
400 |
+ new_vid = simple_strtoul(curr_buf, &next_buf, 10); |
401 |
+ if ((next_buf != curr_buf) && (next_buf != NULL)) |
402 |
+ { |
403 |
+ found = 0; |
404 |
+ for (state_index = 0; state_index < acpi_data->state_count; state_index++) { |
405 |
+ old_control = acpi_data->states[state_index].control; |
406 |
+ old_fid = extract_fid_from_control(old_control); |
407 |
+ if (new_fid == old_fid) |
408 |
+ { |
409 |
+ found = 1; |
410 |
+ original_control = data->original_controls[state_index]; |
411 |
+ original_vid = extract_vid_from_control(original_control); |
412 |
+ if (new_vid <= original_vid) |
413 |
+ { |
414 |
+ new_control = (original_control & ~INTEL_MSR_VID_MASK) | new_vid; |
415 |
+ dprintk("setting control at %i to %x (default is %x)\n", |
416 |
+ state_index, new_control, original_control); |
417 |
+ acpi_data->states[state_index].control = new_control; |
418 |
+ |
419 |
+ } else { |
420 |
+ printk("skipping vid at %i, %u is greater than default %u\n", |
421 |
+ state_index, new_vid, original_vid); |
422 |
+ } |
423 |
+ } |
424 |
+ } |
425 |
+ |
426 |
+ if (found == 0) |
427 |
+ { |
428 |
+ printk("operating point # %u not found (FID = %u)\n", op_count, new_fid); |
429 |
+ isok = 0; |
430 |
+ } |
431 |
+ |
432 |
+ // Parse seprator before next operating point, if any |
433 |
+ curr_buf = next_buf; |
434 |
+ next_buf = NULL; |
435 |
+ if ((*curr_buf == ',') || (*curr_buf == ' ')) |
436 |
+ curr_buf++; |
437 |
+ else |
438 |
+ curr_buf = NULL; |
439 |
+ } |
440 |
+ else |
441 |
+ { |
442 |
+ printk("failed to parse VID of operating point # %u (%s)\n", op_count, curr_buf); |
443 |
+ isok = 0; |
444 |
+ } |
445 |
+ } |
446 |
+ else |
447 |
+ { |
448 |
+ printk("failed to parse operating point # %u (%s)\n", op_count, curr_buf); |
449 |
+ isok = 0; |
450 |
+ } |
451 |
+ } |
452 |
+ else |
453 |
+ { |
454 |
+ printk("failed to parse FID of operating point # %u (%s)\n", op_count, curr_buf); |
455 |
+ isok = 0; |
456 |
+ } |
457 |
+ } |
458 |
+ |
459 |
+ if (isok) |
460 |
+ { |
461 |
+ retval = count; |
462 |
+ /* set new voltage at current frequency */ |
463 |
+ data->resume = 1; |
464 |
+ acpi_cpufreq_target(policy, get_cur_freq_on_cpu(policy->cpu), CPUFREQ_RELATION_L); |
465 |
+ } |
466 |
+ else |
467 |
+ { |
468 |
+ retval = -EINVAL; |
469 |
+ } |
470 |
+ |
471 |
+ return retval; |
472 |
+} |
473 |
+ |
474 |
+static ssize_t show_freq_attr_phc_version(struct cpufreq_policy *policy, char *buf) |
475 |
+ /* print out the phc version string set at the beginning of that file |
476 |
+ */ |
477 |
+{ |
478 |
+ ssize_t count = 0; |
479 |
+ count += sprintf(&buf[count], "%s\n", PHC_VERSION_STRING); |
480 |
+ return count; |
481 |
+} |
482 |
+ |
483 |
+ |
484 |
+ |
485 |
+static struct freq_attr cpufreq_freq_attr_phc_version = |
486 |
+{ |
487 |
+ /*display phc's version string*/ |
488 |
+ .attr = { .name = "phc_version", .mode = 0444 }, |
489 |
+ .show = show_freq_attr_phc_version, |
490 |
+ .store = NULL, |
491 |
+}; |
492 |
+ |
493 |
+static struct freq_attr cpufreq_freq_attr_vids = |
494 |
+{ |
495 |
+ /*display phc's voltage id's for the cpu*/ |
496 |
+ .attr = { .name = "phc_vids", .mode = 0644 }, |
497 |
+ .show = show_freq_attr_vids, |
498 |
+ .store = store_freq_attr_vids, |
499 |
+}; |
500 |
+ |
501 |
+static struct freq_attr cpufreq_freq_attr_default_vids = |
502 |
+{ |
503 |
+ /*display acpi's default frequency id's for the cpu*/ |
504 |
+ .attr = { .name = "phc_default_vids", .mode = 0444 }, |
505 |
+ .show = show_freq_attr_default_vids, |
506 |
+ .store = NULL, |
507 |
+}; |
508 |
+ |
509 |
+static struct freq_attr cpufreq_freq_attr_fids = |
510 |
+{ |
511 |
+ /*display phc's default frequency id's for the cpu*/ |
512 |
+ .attr = { .name = "phc_fids", .mode = 0444 }, |
513 |
+ .show = show_freq_attr_fids, |
514 |
+ .store = NULL, |
515 |
+}; |
516 |
+ |
517 |
+static struct freq_attr cpufreq_freq_attr_controls = |
518 |
+{ |
519 |
+ /*display phc's current voltage/frequency controls for the cpu*/ |
520 |
+ .attr = { .name = "phc_controls", .mode = 0644 }, |
521 |
+ .show = show_freq_attr_controls, |
522 |
+ .store = store_freq_attr_controls, |
523 |
+}; |
524 |
+ |
525 |
+static struct freq_attr cpufreq_freq_attr_default_controls = |
526 |
+{ |
527 |
+ /*display acpi's default voltage/frequency controls for the cpu*/ |
528 |
+ .attr = { .name = "phc_default_controls", .mode = 0444 }, |
529 |
+ .show = show_freq_attr_default_controls, |
530 |
+ .store = NULL, |
531 |
+}; |
532 |
+ |
533 |
+ |
534 |
static struct freq_attr *acpi_cpufreq_attr[] = { |
535 |
&cpufreq_freq_attr_scaling_available_freqs, |
536 |
+ &cpufreq_freq_attr_phc_version, |
537 |
+ &cpufreq_freq_attr_vids, |
538 |
+ &cpufreq_freq_attr_default_vids, |
539 |
+ &cpufreq_freq_attr_fids, |
540 |
+ &cpufreq_freq_attr_controls, |
541 |
+ &cpufreq_freq_attr_default_controls, |
542 |
NULL, |
543 |
}; |