diff options
Diffstat (limited to 'arch/x86/kernel/cpu/cpufreq')
| -rw-r--r-- | arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 25 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/cpufreq/longhaul.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/cpufreq/powernow-k8.c | 13 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/cpufreq/speedstep-lib.c | 5 |
4 files changed, 21 insertions, 24 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c index fea0af0476b..a962dcb9c40 100644 --- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -67,7 +67,8 @@ struct acpi_cpufreq_data { unsigned int cpu_feature; }; -static struct acpi_cpufreq_data *drv_data[NR_CPUS]; +static DEFINE_PER_CPU(struct acpi_cpufreq_data *, drv_data); + /* acpi_perf_data is a pointer to percpu data. */ static struct acpi_processor_performance *acpi_perf_data; @@ -218,14 +219,14 @@ static u32 get_cur_val(cpumask_t mask) if (unlikely(cpus_empty(mask))) return 0; - switch (drv_data[first_cpu(mask)]->cpu_feature) { + switch (per_cpu(drv_data, first_cpu(mask))->cpu_feature) { case SYSTEM_INTEL_MSR_CAPABLE: cmd.type = SYSTEM_INTEL_MSR_CAPABLE; cmd.addr.msr.reg = MSR_IA32_PERF_STATUS; break; case SYSTEM_IO_CAPABLE: cmd.type = SYSTEM_IO_CAPABLE; - perf = drv_data[first_cpu(mask)]->acpi_data; + perf = per_cpu(drv_data, first_cpu(mask))->acpi_data; cmd.addr.io.port = perf->control_register.address; cmd.addr.io.bit_width = perf->control_register.bit_width; break; @@ -325,7 +326,7 @@ static unsigned int get_measured_perf(unsigned int cpu) #endif - retval = drv_data[cpu]->max_freq * perf_percent / 100; + retval = per_cpu(drv_data, cpu)->max_freq * perf_percent / 100; put_cpu(); set_cpus_allowed(current, saved_mask); @@ -336,7 +337,7 @@ static unsigned int get_measured_perf(unsigned int cpu) static unsigned int get_cur_freq_on_cpu(unsigned int cpu) { - struct acpi_cpufreq_data *data = drv_data[cpu]; + struct acpi_cpufreq_data *data = per_cpu(drv_data, cpu); unsigned int freq; dprintk("get_cur_freq_on_cpu (%d)\n", cpu); @@ -370,7 +371,7 @@ static unsigned int check_freqs(cpumask_t mask, unsigned int freq, static int acpi_cpufreq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) { - struct acpi_cpufreq_data *data = drv_data[policy->cpu]; + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); struct acpi_processor_performance *perf; struct cpufreq_freqs freqs; cpumask_t online_policy_cpus; @@ -466,7 +467,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, static int acpi_cpufreq_verify(struct cpufreq_policy *policy) { - struct acpi_cpufreq_data *data = drv_data[policy->cpu]; + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); dprintk("acpi_cpufreq_verify\n"); @@ -570,7 +571,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) return -ENOMEM; data->acpi_data = percpu_ptr(acpi_perf_data, cpu); - drv_data[cpu] = data; + per_cpu(drv_data, cpu) = data; if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS; @@ -714,20 +715,20 @@ err_unreg: acpi_processor_unregister_performance(perf, cpu); err_free: kfree(data); - drv_data[cpu] = NULL; + per_cpu(drv_data, cpu) = NULL; return result; } static int acpi_cpufreq_cpu_exit(struct cpufreq_policy *policy) { - struct acpi_cpufreq_data *data = drv_data[policy->cpu]; + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); dprintk("acpi_cpufreq_cpu_exit\n"); if (data) { cpufreq_frequency_table_put_attr(policy->cpu); - drv_data[policy->cpu] = NULL; + per_cpu(drv_data, policy->cpu) = NULL; acpi_processor_unregister_performance(data->acpi_data, policy->cpu); kfree(data); @@ -738,7 +739,7 @@ static int acpi_cpufreq_cpu_exit(struct cpufreq_policy *policy) static int acpi_cpufreq_resume(struct cpufreq_policy *policy) { - struct acpi_cpufreq_data *data = drv_data[policy->cpu]; + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); dprintk("acpi_cpufreq_resume\n"); diff --git a/arch/x86/kernel/cpu/cpufreq/longhaul.c b/arch/x86/kernel/cpu/cpufreq/longhaul.c index 749d00cb2eb..06fcce516d5 100644 --- a/arch/x86/kernel/cpu/cpufreq/longhaul.c +++ b/arch/x86/kernel/cpu/cpufreq/longhaul.c @@ -694,7 +694,7 @@ static acpi_status longhaul_walk_callback(acpi_handle obj_handle, if ( acpi_bus_get_device(obj_handle, &d) ) { return 0; } - *return_value = (void *)acpi_driver_data(d); + *return_value = acpi_driver_data(d); return 1; } diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c index 99e1ef9939b..5affe91ca1e 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c @@ -52,7 +52,7 @@ /* serialize freq changes */ static DEFINE_MUTEX(fidvid_mutex); -static struct powernow_k8_data *powernow_data[NR_CPUS]; +static DEFINE_PER_CPU(struct powernow_k8_data *, powernow_data); static int cpu_family = CPU_OPTERON; @@ -827,7 +827,6 @@ static int fill_powernow_table_pstate(struct powernow_k8_data *data, struct cpuf for (i = 0; i < data->acpi_data.state_count; i++) { u32 index; - u32 hi = 0, lo = 0; index = data->acpi_data.states[i].control & HW_PSTATE_MASK; if (index > data->max_hw_pstate) { @@ -1018,7 +1017,7 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned i static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsigned relation) { cpumask_t oldmask = CPU_MASK_ALL; - struct powernow_k8_data *data = powernow_data[pol->cpu]; + struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu); u32 checkfid; u32 checkvid; unsigned int newstate; @@ -1094,7 +1093,7 @@ err_out: /* Driver entry point to verify the policy and range of frequencies */ static int powernowk8_verify(struct cpufreq_policy *pol) { - struct powernow_k8_data *data = powernow_data[pol->cpu]; + struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu); if (!data) return -EINVAL; @@ -1202,7 +1201,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) dprintk("cpu_init done, current fid 0x%x, vid 0x%x\n", data->currfid, data->currvid); - powernow_data[pol->cpu] = data; + per_cpu(powernow_data, pol->cpu) = data; return 0; @@ -1216,7 +1215,7 @@ err_out: static int __devexit powernowk8_cpu_exit (struct cpufreq_policy *pol) { - struct powernow_k8_data *data = powernow_data[pol->cpu]; + struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu); if (!data) return -EINVAL; @@ -1237,7 +1236,7 @@ static unsigned int powernowk8_get (unsigned int cpu) cpumask_t oldmask = current->cpus_allowed; unsigned int khz = 0; - data = powernow_data[first_cpu(per_cpu(cpu_core_map, cpu))]; + data = per_cpu(powernow_data, first_cpu(per_cpu(cpu_core_map, cpu))); if (!data) return -EINVAL; diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c index 76c3ab0da46..98d4fdb7dc0 100644 --- a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c +++ b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c @@ -189,10 +189,7 @@ static unsigned int pentium4_get_frequency(void) printk(KERN_DEBUG "speedstep-lib: couldn't detect FSB speed. Please send an e-mail to <linux@brodo.de>\n"); /* Multiplier. */ - if (c->x86_model < 2) - mult = msr_lo >> 27; - else - mult = msr_lo >> 24; + mult = msr_lo >> 24; dprintk("P4 - FSB %u kHz; Multiplier %u; Speed %u kHz\n", fsb, mult, (fsb * mult)); |