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authorvenkatesh.pallipadi@intel.com <venkatesh.pallipadi@intel.com>2008-08-04 11:59:07 -0700
committerDave Jones <davej@redhat.com>2008-10-09 13:52:43 -0400
commitbf0b90e357c883e8efd72954432efe652de74c76 (patch)
treea10758a069cdea10b36856b458a509b144bae3bb /arch/x86/kernel/cpu
parent8217e4f4c93e5fb59bb3cd1e6135213889349f86 (diff)
[CPUFREQ][1/6] cpufreq: Add cpu number parameter to __cpufreq_driver_getavg()
Add a cpu parameter to __cpufreq_driver_getavg(). This is needed for software cpufreq coordination where policy->cpu may not be same as the CPU on which we want to getavg frequency. A follow-on patch will use this parameter to getavg freq from all cpus in policy->cpus. Change since last patch. Fix the offline/online and suspend/resume oops reported by Youquan Song <youquan.song@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'arch/x86/kernel/cpu')
-rw-r--r--arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index 1def5b06fa4..c24c4a487b7 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -256,7 +256,8 @@ static u32 get_cur_val(const cpumask_t *mask)
* Only IA32_APERF/IA32_MPERF ratio is architecturally defined and
* no meaning should be associated with absolute values of these MSRs.
*/
-static unsigned int get_measured_perf(unsigned int cpu)
+static unsigned int get_measured_perf(struct cpufreq_policy *policy,
+ unsigned int cpu)
{
union {
struct {
@@ -326,7 +327,7 @@ static unsigned int get_measured_perf(unsigned int cpu)
#endif
- retval = per_cpu(drv_data, cpu)->max_freq * perf_percent / 100;
+ retval = per_cpu(drv_data, policy->cpu)->max_freq * perf_percent / 100;
put_cpu();
set_cpus_allowed_ptr(current, &saved_mask);