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-rw-r--r--tools/power/cpupower/man/cpupower-set.19
-rw-r--r--tools/power/cpupower/utils/helpers/sysfs.c35
2 files changed, 2 insertions, 42 deletions
diff --git a/tools/power/cpupower/man/cpupower-set.1 b/tools/power/cpupower/man/cpupower-set.1
index c4954a9fe4e7..9dbd536518ab 100644
--- a/tools/power/cpupower/man/cpupower-set.1
+++ b/tools/power/cpupower/man/cpupower-set.1
@@ -85,15 +85,6 @@ Possible values are:
85savings 85savings
86.RE 86.RE
87 87
88sched_mc_power_savings is dependent upon SCHED_MC, which is
89itself architecture dependent.
90
91sched_smt_power_savings is dependent upon SCHED_SMT, which
92is itself architecture dependent.
93
94The two files are independent of each other. It is possible
95that one file may be present without the other.
96
97.SH "SEE ALSO" 88.SH "SEE ALSO"
98cpupower-info(1), cpupower-monitor(1), powertop(1) 89cpupower-info(1), cpupower-monitor(1), powertop(1)
99.PP 90.PP
diff --git a/tools/power/cpupower/utils/helpers/sysfs.c b/tools/power/cpupower/utils/helpers/sysfs.c
index c6343024a611..96e28c124b5c 100644
--- a/tools/power/cpupower/utils/helpers/sysfs.c
+++ b/tools/power/cpupower/utils/helpers/sysfs.c
@@ -362,22 +362,7 @@ char *sysfs_get_cpuidle_driver(void)
362 */ 362 */
363int sysfs_get_sched(const char *smt_mc) 363int sysfs_get_sched(const char *smt_mc)
364{ 364{
365 unsigned long value; 365 return -ENODEV;
366 char linebuf[MAX_LINE_LEN];
367 char *endp;
368 char path[SYSFS_PATH_MAX];
369
370 if (strcmp("mc", smt_mc) && strcmp("smt", smt_mc))
371 return -EINVAL;
372
373 snprintf(path, sizeof(path),
374 PATH_TO_CPU "sched_%s_power_savings", smt_mc);
375 if (sysfs_read_file(path, linebuf, MAX_LINE_LEN) == 0)
376 return -1;
377 value = strtoul(linebuf, &endp, 0);
378 if (endp == linebuf || errno == ERANGE)
379 return -1;
380 return value;
381} 366}
382 367
383/* 368/*
@@ -388,21 +373,5 @@ int sysfs_get_sched(const char *smt_mc)
388 */ 373 */
389int sysfs_set_sched(const char *smt_mc, int val) 374int sysfs_set_sched(const char *smt_mc, int val)
390{ 375{
391 char linebuf[MAX_LINE_LEN]; 376 return -ENODEV;
392 char path[SYSFS_PATH_MAX];
393 struct stat statbuf;
394
395 if (strcmp("mc", smt_mc) && strcmp("smt", smt_mc))
396 return -EINVAL;
397
398 snprintf(path, sizeof(path),
399 PATH_TO_CPU "sched_%s_power_savings", smt_mc);
400 sprintf(linebuf, "%d", val);
401
402 if (stat(path, &statbuf) != 0)
403 return -ENODEV;
404
405 if (sysfs_write_file(path, linebuf, MAX_LINE_LEN) == 0)
406 return -1;
407 return 0;
408} 377}