Merge branch 'pm-cpufreq'

* pm-cpufreq: (22 commits)
  cpufreq: Kconfig: fix documentation links
  cpufreq: intel_pstate: Simplify intel_pstate_update_perf_limits()
  cpufreq: armada-37xx: Fix module unloading
  cpufreq: armada-37xx: Remove cur_frequency variable
  cpufreq: armada-37xx: Fix determining base CPU frequency
  cpufreq: armada-37xx: Fix driver cleanup when registration failed
  clk: mvebu: armada-37xx-periph: Fix workaround for switching from L1 to L0
  clk: mvebu: armada-37xx-periph: Fix switching CPU freq from 250 Mhz to 1 GHz
  cpufreq: armada-37xx: Fix the AVS value for load L1
  clk: mvebu: armada-37xx-periph: remove .set_parent method for CPU PM clock
  cpufreq: armada-37xx: Fix setting TBG parent for load levels
  cpufreq: Remove unused for_each_policy macro
  cpufreq: dt: dev_pm_opp_of_cpumask_add_table() may return -EPROBE_DEFER
  cpufreq: intel_pstate: Clean up frequency computations
  cpufreq: cppc: simplify default delay_us setting
  cpufreq: Rudimentary typos fix in the file s5pv210-cpufreq.c
  cpufreq: CPPC: Add support for frequency invariance
  ia64: fix format string for ia64-acpi-cpu-freq
  cpufreq: schedutil: Call sugov_update_next_freq() before check to fast_switch_enabled
  arch_topology: Export arch_freq_scale and helpers
  ...

1 files changed, 16 insertions, 3 deletions

diff --git a/include/linux/arch_topology.h b/include/linux/arch_topology.h
index 0f6cd6b73a61..f180240dc95f 100644
--- a/include/linux/arch_topology.h
+++ b/include/linux/arch_topology.h
@@ -23,18 +23,31 @@ static inline unsigned long topology_get_cpu_scale(int cpu)
 
 void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity);
 
-DECLARE_PER_CPU(unsigned long, freq_scale);
+DECLARE_PER_CPU(unsigned long, arch_freq_scale);
 
 static inline unsigned long topology_get_freq_scale(int cpu)
 {
-	return per_cpu(freq_scale, cpu);
+	return per_cpu(arch_freq_scale, cpu);
 }
 
 void topology_set_freq_scale(const struct cpumask *cpus, unsigned long cur_freq,
 			     unsigned long max_freq);
 bool topology_scale_freq_invariant(void);
 
-bool arch_freq_counters_available(const struct cpumask *cpus);
+enum scale_freq_source {
+	SCALE_FREQ_SOURCE_CPUFREQ = 0,
+	SCALE_FREQ_SOURCE_ARCH,
+	SCALE_FREQ_SOURCE_CPPC,
+};
+
+struct scale_freq_data {
+	enum scale_freq_source source;
+	void (*set_freq_scale)(void);
+};
+
+void topology_scale_freq_tick(void);
+void topology_set_scale_freq_source(struct scale_freq_data *data, const struct cpumask *cpus);
+void topology_clear_scale_freq_source(enum scale_freq_source source, const struct cpumask *cpus);
 
 DECLARE_PER_CPU(unsigned long, thermal_pressure);