diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-06-07 12:35:43 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-06-07 12:35:43 +0200 |
| commit | c6617b39c39d8735c912bb4efd2f735fedff5052 (patch) | |
| tree | d569d01e2f43d6728fec4ed6e218f060d0321e94 | |
| parent | 2314b69253a42f8814cd6e3830b8538b815f1c11 (diff) | |
| parent | 0ca684365547cd5f214b5739568dae3df5d6cec9 (diff) | |
Merge branch 'pm-fixes'
* pm-fixes:
cpufreq: cpufreq-cpu0: use the exact frequency for clk_set_rate()
cpufreq: protect 'policy->cpus' from offlining during __gov_queue_work()
acpi-cpufreq: set current frequency based on target P-State
| -rw-r--r-- | drivers/cpufreq/acpi-cpufreq.c | 4 | ||||
| -rw-r--r-- | drivers/cpufreq/cpufreq-cpu0.c | 5 | ||||
| -rw-r--r-- | drivers/cpufreq/cpufreq_governor.c | 3 |
3 files changed, 8 insertions, 4 deletions
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index 11b8b4b54ceb..edc089e9d0c4 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -347,11 +347,11 @@ static u32 get_cur_val(const struct cpumask *mask) switch (per_cpu(acfreq_data, cpumask_first(mask))->cpu_feature) { case SYSTEM_INTEL_MSR_CAPABLE: cmd.type = SYSTEM_INTEL_MSR_CAPABLE; - cmd.addr.msr.reg = MSR_IA32_PERF_STATUS; + cmd.addr.msr.reg = MSR_IA32_PERF_CTL; break; case SYSTEM_AMD_MSR_CAPABLE: cmd.type = SYSTEM_AMD_MSR_CAPABLE; - cmd.addr.msr.reg = MSR_AMD_PERF_STATUS; + cmd.addr.msr.reg = MSR_AMD_PERF_CTL; break; case SYSTEM_IO_CAPABLE: cmd.type = SYSTEM_IO_CAPABLE; diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index a64eb8b70444..ad1fde277661 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -45,7 +45,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, struct cpufreq_freqs freqs; struct opp *opp; unsigned long volt = 0, volt_old = 0, tol = 0; - long freq_Hz; + long freq_Hz, freq_exact; unsigned int index; int ret; @@ -60,6 +60,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, freq_Hz = clk_round_rate(cpu_clk, freq_table[index].frequency * 1000); if (freq_Hz < 0) freq_Hz = freq_table[index].frequency * 1000; + freq_exact = freq_Hz; freqs.new = freq_Hz / 1000; freqs.old = clk_get_rate(cpu_clk) / 1000; @@ -98,7 +99,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, } } - ret = clk_set_rate(cpu_clk, freqs.new * 1000); + ret = clk_set_rate(cpu_clk, freq_exact); if (ret) { pr_err("failed to set clock rate: %d\n", ret); if (cpu_reg) diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c index 5af40ad82d23..dc9b72e25c1a 100644 --- a/drivers/cpufreq/cpufreq_governor.c +++ b/drivers/cpufreq/cpufreq_governor.c @@ -26,6 +26,7 @@ #include <linux/tick.h> #include <linux/types.h> #include <linux/workqueue.h> +#include <linux/cpu.h> #include "cpufreq_governor.h" @@ -180,8 +181,10 @@ void gov_queue_work(struct dbs_data *dbs_data, struct cpufreq_policy *policy, if (!all_cpus) { __gov_queue_work(smp_processor_id(), dbs_data, delay); } else { + get_online_cpus(); for_each_cpu(i, policy->cpus) __gov_queue_work(i, dbs_data, delay); + put_online_cpus(); } } EXPORT_SYMBOL_GPL(gov_queue_work); |