diff options
| -rw-r--r-- | drivers/cpufreq/intel_pstate.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index e5fd78072f8b..e9f3048eb6f2 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -37,7 +37,6 @@ #define BYT_TURBO_RATIOS 0x66c #define BYT_TURBO_VIDS 0x66d - #define FRAC_BITS 8 #define int_tofp(X) ((int64_t)(X) << FRAC_BITS) #define fp_toint(X) ((X) >> FRAC_BITS) @@ -167,7 +166,6 @@ static inline void pid_i_gain_set(struct _pid *pid, int percent) static inline void pid_d_gain_set(struct _pid *pid, int percent) { - pid->d_gain = div_fp(int_tofp(percent), int_tofp(100)); } @@ -217,6 +215,7 @@ static inline void intel_pstate_busy_pid_reset(struct cpudata *cpu) static inline void intel_pstate_reset_all_pid(void) { unsigned int cpu; + for_each_online_cpu(cpu) { if (all_cpu_data[cpu]) intel_pstate_busy_pid_reset(all_cpu_data[cpu]); @@ -230,6 +229,7 @@ static int pid_param_set(void *data, u64 val) intel_pstate_reset_all_pid(); return 0; } + static int pid_param_get(void *data, u64 *val) { *val = *(u32 *)data; @@ -284,6 +284,7 @@ static ssize_t store_no_turbo(struct kobject *a, struct attribute *b, { unsigned int input; int ret; + ret = sscanf(buf, "%u", &input); if (ret != 1) return -EINVAL; @@ -300,6 +301,7 @@ static ssize_t store_max_perf_pct(struct kobject *a, struct attribute *b, { unsigned int input; int ret; + ret = sscanf(buf, "%u", &input); if (ret != 1) return -EINVAL; @@ -307,6 +309,7 @@ static ssize_t store_max_perf_pct(struct kobject *a, struct attribute *b, limits.max_sysfs_pct = clamp_t(int, input, 0 , 100); limits.max_perf_pct = min(limits.max_policy_pct, limits.max_sysfs_pct); limits.max_perf = div_fp(int_tofp(limits.max_perf_pct), int_tofp(100)); + return count; } @@ -315,6 +318,7 @@ static ssize_t store_min_perf_pct(struct kobject *a, struct attribute *b, { unsigned int input; int ret; + ret = sscanf(buf, "%u", &input); if (ret != 1) return -EINVAL; @@ -360,6 +364,7 @@ static void __init intel_pstate_sysfs_expose_params(void) static int byt_get_min_pstate(void) { u64 value; + rdmsrl(BYT_RATIOS, value); return (value >> 8) & 0x7F; } @@ -367,6 +372,7 @@ static int byt_get_min_pstate(void) static int byt_get_max_pstate(void) { u64 value; + rdmsrl(BYT_RATIOS, value); return (value >> 16) & 0x7F; } @@ -374,6 +380,7 @@ static int byt_get_max_pstate(void) static int byt_get_turbo_pstate(void) { u64 value; + rdmsrl(BYT_TURBO_RATIOS, value); return value & 0x7F; } @@ -407,7 +414,6 @@ static void byt_get_vid(struct cpudata *cpudata) { u64 value; - rdmsrl(BYT_VIDS, value); cpudata->vid.min = int_tofp((value >> 8) & 0x7f); cpudata->vid.max = int_tofp((value >> 16) & 0x7f); @@ -420,10 +426,10 @@ static void byt_get_vid(struct cpudata *cpudata) cpudata->vid.turbo = value & 0x7f; } - static int core_get_min_pstate(void) { u64 value; + rdmsrl(MSR_PLATFORM_INFO, value); return (value >> 40) & 0xFF; } @@ -431,6 +437,7 @@ static int core_get_min_pstate(void) static int core_get_max_pstate(void) { u64 value; + rdmsrl(MSR_PLATFORM_INFO, value); return (value >> 8) & 0xFF; } @@ -439,6 +446,7 @@ static int core_get_turbo_pstate(void) { u64 value; int nont, ret; + rdmsrl(MSR_NHM_TURBO_RATIO_LIMIT, value); nont = core_get_max_pstate(); ret = ((value) & 255); @@ -493,12 +501,12 @@ static struct cpu_defaults byt_params = { }, }; - static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max) { int max_perf = cpu->pstate.turbo_pstate; int max_perf_adj; int min_perf; + if (limits.no_turbo) max_perf = cpu->pstate.max_pstate; |
