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authorStratos Karafotis <stratosk@semaphore.gr>2013-06-05 19:01:42 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-07-26 01:06:43 +0200
commit61c63e5ed3b9c472899d7152e961f2ffaafcf5a0 (patch)
treee84b694d4640fd0e1ba527ec63e41e3edfddeb04 /drivers/cpufreq/acpi-cpufreq.c
parentdfa5bb622555d9da0df21b50f46ebdeef390041b (diff)
downloadleg-kernel-61c63e5ed3b9c472899d7152e961f2ffaafcf5a0.tar.gz
cpufreq: Remove unused APERF/MPERF support
The target frequency calculation method in the ondemand governor has changed and it is now independent of the measured average frequency. Consequently, the APERF/MPERF support in cpufreq is not used any more, so drop it. [rjw: Changelog] Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/acpi-cpufreq.c')
-rw-r--r--drivers/cpufreq/acpi-cpufreq.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 39264020b88a..e673670d2321 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -45,7 +45,6 @@
#include <asm/msr.h>
#include <asm/processor.h>
#include <asm/cpufeature.h>
-#include "mperf.h"
MODULE_AUTHOR("Paul Diefenbaugh, Dominik Brodowski");
MODULE_DESCRIPTION("ACPI Processor P-States Driver");
@@ -861,10 +860,6 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
/* notify BIOS that we exist */
acpi_processor_notify_smm(THIS_MODULE);
- /* Check for APERF/MPERF support in hardware */
- if (boot_cpu_has(X86_FEATURE_APERFMPERF))
- acpi_cpufreq_driver.getavg = cpufreq_get_measured_perf;
-
pr_debug("CPU%u - ACPI performance management activated.\n", cpu);
for (i = 0; i < perf->state_count; i++)
pr_debug(" %cP%d: %d MHz, %d mW, %d uS\n",