intel_pstate: Declare pid_params/pstate_funcs/hwp_active __read_mostly
pid_params is written once by copy_pid_params() during initialization,
and thereafter is mostly read by hot path intel_pstate_update_util().
The read of pid_params gets more after commit a4675fbc4a
("cpufreq:
intel_pstate: Replace timers with utilization update callbacks")
pstate_funcs is written once by copy_cpu_funcs() during initialization,
and thereafter is mostly read by hot path intel_pstate_update_util()
hwp_active is written to once during initialization and thereafter is
mostly read by hot path intel_pstate_update_util().
The fact that they are mostly read and not written to makes them
candidates for __read_mostly declarations.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
parent
29327c84ba
commit
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@ -282,9 +282,9 @@ struct cpu_defaults {
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static inline int32_t get_target_pstate_use_performance(struct cpudata *cpu);
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static inline int32_t get_target_pstate_use_cpu_load(struct cpudata *cpu);
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static struct pstate_adjust_policy pid_params;
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static struct pstate_funcs pstate_funcs;
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static int hwp_active;
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static struct pstate_adjust_policy pid_params __read_mostly;
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static struct pstate_funcs pstate_funcs __read_mostly;
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static int hwp_active __read_mostly;
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#ifdef CONFIG_ACPI
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static bool acpi_ppc;
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