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authorViresh Kumar <viresh.kumar@linaro.org>2013-10-30 15:44:40 -0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-10-31 00:10:53 +0100
commite79a23c5b9870b7f80425793abeb10e57f7486d4 (patch)
treec957d3a1c803ba71fc030b016e902f2bee6d81af /drivers/cpufreq/arm_big_little.h
parent9e941b6f42cc2b0d53011d62d639140c84116f59 (diff)
cpufreq: arm_big_little: add in-kernel switching (IKS) support
This patch adds IKS (In Kernel Switcher) support to cpufreq driver. This creates a combined freq table for A7-A15 CPU pairs. A7 frequencies are virtualized and scaled down to half the actual frequencies to approximate a linear scale across the combined A7+A15 range. When the requested frequency change crosses the A7-A15 boundary a cluster switch is invoked. Based on earlier work from Sudeep KarkadaNagesha. Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/arm_big_little.h')
-rw-r--r--drivers/cpufreq/arm_big_little.h5
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/cpufreq/arm_big_little.h b/drivers/cpufreq/arm_big_little.h
index 79b2ce17884d..70f18fc12d4a 100644
--- a/drivers/cpufreq/arm_big_little.h
+++ b/drivers/cpufreq/arm_big_little.h
@@ -34,11 +34,6 @@ struct cpufreq_arm_bL_ops {
int (*init_opp_table)(struct device *cpu_dev);
};
-static inline int cpu_to_cluster(int cpu)
-{
- return topology_physical_package_id(cpu);
-}
-
int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops);
void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops);