From 7ad728f98162cb1af06a85b2a5fc422dddd4fb78 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Fri, 13 Mar 2009 14:49:50 +1030 Subject: cpumask: x86: convert cpu_sibling_map/cpu_core_map to cpumask_var_t Impact: reduce per-cpu size for CONFIG_CPUMASK_OFFSTACK=y In most places it's cleaner to use the accessors cpu_sibling_mask() and cpu_core_mask() wrappers which already exist. I couldn't avoid cleaning up the access in oprofile, either. Signed-off-by: Rusty Russell --- arch/x86/kernel/cpu/cpufreq/p4-clockmod.c | 2 +- arch/x86/kernel/cpu/cpufreq/powernow-k8.c | 13 ++++++++----- arch/x86/kernel/cpu/cpufreq/speedstep-ich.c | 2 +- 3 files changed, 10 insertions(+), 7 deletions(-) (limited to 'arch/x86/kernel/cpu/cpufreq') diff --git a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c index 3178c3a..d8341d1 100644 --- a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c +++ b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c @@ -203,7 +203,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) unsigned int i; #ifdef CONFIG_SMP - cpumask_copy(policy->cpus, &per_cpu(cpu_sibling_map, policy->cpu)); + cpumask_copy(policy->cpus, cpu_sibling_mask(policy->cpu)); #endif /* Errata workaround */ diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c index 6428aa1..e8fd76f 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c @@ -56,7 +56,10 @@ static DEFINE_PER_CPU(struct powernow_k8_data *, powernow_data); static int cpu_family = CPU_OPTERON; #ifndef CONFIG_SMP -DEFINE_PER_CPU(cpumask_t, cpu_core_map); +static inline const struct cpumask *cpu_core_mask(int cpu) +{ + return cpumask_of(0); +} #endif /* Return a frequency in MHz, given an input fid */ @@ -654,7 +657,7 @@ static int fill_powernow_table(struct powernow_k8_data *data, struct pst_s *pst, dprintk("cfid 0x%x, cvid 0x%x\n", data->currfid, data->currvid); data->powernow_table = powernow_table; - if (first_cpu(per_cpu(cpu_core_map, data->cpu)) == data->cpu) + if (cpumask_first(cpu_core_mask(data->cpu)) == data->cpu) print_basics(data); for (j = 0; j < data->numps; j++) @@ -808,7 +811,7 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) /* fill in data */ data->numps = data->acpi_data.state_count; - if (first_cpu(per_cpu(cpu_core_map, data->cpu)) == data->cpu) + if (cpumask_first(cpu_core_mask(data->cpu)) == data->cpu) print_basics(data); powernow_k8_acpi_pst_values(data, 0); @@ -1224,7 +1227,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) if (cpu_family == CPU_HW_PSTATE) cpumask_copy(pol->cpus, cpumask_of(pol->cpu)); else - cpumask_copy(pol->cpus, &per_cpu(cpu_core_map, pol->cpu)); + cpumask_copy(pol->cpus, cpu_core_mask(pol->cpu)); data->available_cores = pol->cpus; if (cpu_family == CPU_HW_PSTATE) @@ -1286,7 +1289,7 @@ static unsigned int powernowk8_get (unsigned int cpu) unsigned int khz = 0; unsigned int first; - first = first_cpu(per_cpu(cpu_core_map, cpu)); + first = cpumask_first(cpu_core_mask(cpu)); data = per_cpu(powernow_data, first); if (!data) diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c index dedc1e9..1f0ec83 100644 --- a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c +++ b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c @@ -322,7 +322,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) /* only run on CPU to be set, or on its sibling */ #ifdef CONFIG_SMP - cpumask_copy(policy->cpus, &per_cpu(cpu_sibling_map, policy->cpu)); + cpumask_copy(policy->cpus, cpu_sibling_mask(policy->cpu)); #endif cpus_allowed = current->cpus_allowed; -- cgit v1.1