diff options
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/intel_pstate.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 28fefe3dd73..badf6206b2b 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -383,6 +383,7 @@ static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max) static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate) { int max_perf, min_perf; + u64 val; intel_pstate_get_min_max(cpu, &min_perf, &max_perf); @@ -394,11 +395,11 @@ static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate) trace_cpu_frequency(pstate * 100000, cpu->cpu); cpu->pstate.current_pstate = pstate; + val = pstate << 8; if (limits.no_turbo) - wrmsrl(MSR_IA32_PERF_CTL, BIT(32) | (pstate << 8)); - else - wrmsrl(MSR_IA32_PERF_CTL, pstate << 8); + val |= (u64)1 << 32; + wrmsrl(MSR_IA32_PERF_CTL, val); } static inline void intel_pstate_pstate_increase(struct cpudata *cpu, int steps) |