|
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [RFC PATCH 01/13] cpufreq: move cpufreq.h file to the xen/include/cpufreq location
On 07/10/14 15:19, Oleksandr Dmytryshyn wrote:
> Cpufreq driver should be more generalizable (not ACPI-specific).
> Thus this file should be placed to the proper location.
>
> Signed-off-by: Oleksandr Dmytryshyn <oleksandr.dmytryshyn@xxxxxxxxxxxxxxx>
In the future, please prepare patch series with the -M option which will
detect the move of cpufreq.h as a rename, and vastly reduce the size of
the patches.
~Andrew
> ---
> xen/arch/x86/acpi/cpu_idle.c | 2 +-
> xen/arch/x86/acpi/cpufreq/cpufreq.c | 2 +-
> xen/arch/x86/acpi/cpufreq/powernow.c | 2 +-
> xen/arch/x86/acpi/power.c | 2 +-
> xen/arch/x86/cpu/mwait-idle.c | 2 +-
> xen/drivers/acpi/pmstat.c | 2 +-
> xen/drivers/cpufreq/cpufreq.c | 2 +-
> xen/drivers/cpufreq/cpufreq_misc_governors.c | 2 +-
> xen/drivers/cpufreq/cpufreq_ondemand.c | 4 +-
> xen/drivers/cpufreq/utility.c | 2 +-
> xen/include/acpi/cpufreq/cpufreq.h | 258 --------------------------
> xen/include/cpufreq/cpufreq.h | 261
> +++++++++++++++++++++++++++
> 12 files changed, 272 insertions(+), 269 deletions(-)
> delete mode 100644 xen/include/acpi/cpufreq/cpufreq.h
> create mode 100644 xen/include/cpufreq/cpufreq.h
>
> diff --git a/xen/arch/x86/acpi/cpu_idle.c b/xen/arch/x86/acpi/cpu_idle.c
> index 597befa..98726ad 100644
> --- a/xen/arch/x86/acpi/cpu_idle.c
> +++ b/xen/arch/x86/acpi/cpu_idle.c
> @@ -51,7 +51,7 @@
> #include <xen/softirq.h>
> #include <public/platform.h>
> #include <public/sysctl.h>
> -#include <acpi/cpufreq/cpufreq.h>
> +#include <cpufreq/cpufreq.h>
> #include <asm/apic.h>
> #include <asm/cpuidle.h>
> #include <asm/mwait.h>
> diff --git a/xen/arch/x86/acpi/cpufreq/cpufreq.c
> b/xen/arch/x86/acpi/cpufreq/cpufreq.c
> index 4a6aeb3..4569d49 100644
> --- a/xen/arch/x86/acpi/cpufreq/cpufreq.c
> +++ b/xen/arch/x86/acpi/cpufreq/cpufreq.c
> @@ -42,7 +42,7 @@
> #include <asm/percpu.h>
> #include <asm/cpufeature.h>
> #include <acpi/acpi.h>
> -#include <acpi/cpufreq/cpufreq.h>
> +#include <cpufreq/cpufreq.h>
>
> enum {
> UNDEFINED_CAPABLE = 0,
> diff --git a/xen/arch/x86/acpi/cpufreq/powernow.c
> b/xen/arch/x86/acpi/cpufreq/powernow.c
> index 2c9fea2..0462e31 100644
> --- a/xen/arch/x86/acpi/cpufreq/powernow.c
> +++ b/xen/arch/x86/acpi/cpufreq/powernow.c
> @@ -36,7 +36,7 @@
> #include <asm/percpu.h>
> #include <asm/cpufeature.h>
> #include <acpi/acpi.h>
> -#include <acpi/cpufreq/cpufreq.h>
> +#include <cpufreq/cpufreq.h>
>
> #define CPUID_6_ECX_APERFMPERF_CAPABILITY (0x1)
> #define CPUID_FREQ_VOLT_CAPABILITIES 0x80000007
> diff --git a/xen/arch/x86/acpi/power.c b/xen/arch/x86/acpi/power.c
> index f41f0de..d139e96 100644
> --- a/xen/arch/x86/acpi/power.c
> +++ b/xen/arch/x86/acpi/power.c
> @@ -29,7 +29,7 @@
> #include <asm/tboot.h>
> #include <asm/apic.h>
> #include <asm/io_apic.h>
> -#include <acpi/cpufreq/cpufreq.h>
> +#include <cpufreq/cpufreq.h>
>
> uint32_t system_reset_counter = 1;
>
> diff --git a/xen/arch/x86/cpu/mwait-idle.c b/xen/arch/x86/cpu/mwait-idle.c
> index 85179f2..a00c19a 100644
> --- a/xen/arch/x86/cpu/mwait-idle.c
> +++ b/xen/arch/x86/cpu/mwait-idle.c
> @@ -59,7 +59,7 @@
> #include <asm/hpet.h>
> #include <asm/mwait.h>
> #include <asm/msr.h>
> -#include <acpi/cpufreq/cpufreq.h>
> +#include <cpufreq/cpufreq.h>
>
> #define MWAIT_IDLE_VERSION "0.4"
> #undef PREFIX
> diff --git a/xen/drivers/acpi/pmstat.c b/xen/drivers/acpi/pmstat.c
> index daac2da..bd6ca43 100644
> --- a/xen/drivers/acpi/pmstat.c
> +++ b/xen/drivers/acpi/pmstat.c
> @@ -40,7 +40,7 @@
> #include <xen/acpi.h>
>
> #include <public/sysctl.h>
> -#include <acpi/cpufreq/cpufreq.h>
> +#include <cpufreq/cpufreq.h>
> #include <xen/pmstat.h>
>
> DEFINE_PER_CPU_READ_MOSTLY(struct pm_px *, cpufreq_statistic_data);
> diff --git a/xen/drivers/cpufreq/cpufreq.c b/xen/drivers/cpufreq/cpufreq.c
> index ab66884..884d2bb 100644
> --- a/xen/drivers/cpufreq/cpufreq.c
> +++ b/xen/drivers/cpufreq/cpufreq.c
> @@ -44,7 +44,7 @@
> #include <asm/processor.h>
> #include <asm/percpu.h>
> #include <acpi/acpi.h>
> -#include <acpi/cpufreq/cpufreq.h>
> +#include <cpufreq/cpufreq.h>
>
> static unsigned int __read_mostly usr_min_freq;
> static unsigned int __read_mostly usr_max_freq;
> diff --git a/xen/drivers/cpufreq/cpufreq_misc_governors.c
> b/xen/drivers/cpufreq/cpufreq_misc_governors.c
> index 746bbcd..881e4bb 100644
> --- a/xen/drivers/cpufreq/cpufreq_misc_governors.c
> +++ b/xen/drivers/cpufreq/cpufreq_misc_governors.c
> @@ -18,7 +18,7 @@
> #include <xen/init.h>
> #include <xen/percpu.h>
> #include <xen/sched.h>
> -#include <acpi/cpufreq/cpufreq.h>
> +#include <cpufreq/cpufreq.h>
>
> /*
> * cpufreq userspace governor
> diff --git a/xen/drivers/cpufreq/cpufreq_ondemand.c
> b/xen/drivers/cpufreq/cpufreq_ondemand.c
> index 7fdba03..f299116 100644
> --- a/xen/drivers/cpufreq/cpufreq_ondemand.c
> +++ b/xen/drivers/cpufreq/cpufreq_ondemand.c
> @@ -1,5 +1,5 @@
> /*
> - * xen/arch/x86/acpi/cpufreq/cpufreq_ondemand.c
> + * xen/drivers/cpufreq/cpufreq_ondemand.c
> *
> * Copyright (C) 2001 Russell King
> * (C) 2003 Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>.
> @@ -18,7 +18,7 @@
> #include <xen/types.h>
> #include <xen/sched.h>
> #include <xen/timer.h>
> -#include <acpi/cpufreq/cpufreq.h>
> +#include <cpufreq/cpufreq.h>
>
> #define DEF_FREQUENCY_UP_THRESHOLD (80)
> #define MIN_FREQUENCY_UP_THRESHOLD (11)
> diff --git a/xen/drivers/cpufreq/utility.c b/xen/drivers/cpufreq/utility.c
> index 519f862..c9150a1 100644
> --- a/xen/drivers/cpufreq/utility.c
> +++ b/xen/drivers/cpufreq/utility.c
> @@ -28,7 +28,7 @@
> #include <xen/sched.h>
> #include <xen/timer.h>
> #include <xen/trace.h>
> -#include <acpi/cpufreq/cpufreq.h>
> +#include <cpufreq/cpufreq.h>
> #include <public/sysctl.h>
>
> struct cpufreq_driver *cpufreq_driver;
> diff --git a/xen/include/acpi/cpufreq/cpufreq.h
> b/xen/include/acpi/cpufreq/cpufreq.h
> deleted file mode 100644
> index f96c3e4..0000000
> --- a/xen/include/acpi/cpufreq/cpufreq.h
> +++ /dev/null
> @@ -1,258 +0,0 @@
> -/*
> - * xen/include/acpi/cpufreq/cpufreq.h
> - *
> - * Copyright (C) 2001 Russell King
> - * (C) 2002 - 2003 Dominik Brodowski <linux@xxxxxxxx>
> - *
> - * $Id: cpufreq.h,v 1.36 2003/01/20 17:31:48 db Exp $
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License version 2 as
> - * published by the Free Software Foundation.
> - */
> -
> -#ifndef __XEN_CPUFREQ_PM_H__
> -#define __XEN_CPUFREQ_PM_H__
> -
> -#include <xen/types.h>
> -#include <xen/list.h>
> -#include <xen/cpumask.h>
> -
> -#include "processor_perf.h"
> -
> -DECLARE_PER_CPU(spinlock_t, cpufreq_statistic_lock);
> -
> -extern bool_t cpufreq_verbose;
> -
> -struct cpufreq_governor;
> -
> -struct acpi_cpufreq_data {
> - struct processor_performance *acpi_data;
> - struct cpufreq_frequency_table *freq_table;
> - unsigned int arch_cpu_flags;
> -};
> -
> -extern struct acpi_cpufreq_data *cpufreq_drv_data[NR_CPUS];
> -
> -struct cpufreq_cpuinfo {
> - unsigned int max_freq;
> - unsigned int second_max_freq; /* P1 if Turbo Mode is on */
> - unsigned int min_freq;
> - unsigned int transition_latency; /* in 10^(-9) s = nanoseconds */
> -};
> -
> -struct cpufreq_policy {
> - cpumask_var_t cpus; /* affected CPUs */
> - unsigned int shared_type; /* ANY or ALL affected CPUs
> - should set cpufreq */
> - unsigned int cpu; /* cpu nr of registered CPU */
> - struct cpufreq_cpuinfo cpuinfo;
> -
> - unsigned int min; /* in kHz */
> - unsigned int max; /* in kHz */
> - unsigned int cur; /* in kHz, only needed if cpufreq
> - * governors are used */
> - struct cpufreq_governor *governor;
> -
> - bool_t resume; /* flag for cpufreq 1st run
> - * S3 wakeup, hotplug cpu, etc */
> - s8 turbo; /* tristate flag: 0 for unsupported
> - * -1 for disable, 1 for enabled
> - * See CPUFREQ_TURBO_* below for defines */
> - bool_t aperf_mperf; /* CPU has APERF/MPERF MSRs */
> -};
> -DECLARE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_policy);
> -
> -extern int __cpufreq_set_policy(struct cpufreq_policy *data,
> - struct cpufreq_policy *policy);
> -
> -void cpufreq_cmdline_parse(char *);
> -
> -#define CPUFREQ_SHARED_TYPE_NONE (0) /* None */
> -#define CPUFREQ_SHARED_TYPE_HW (1) /* HW does needed coordination */
> -#define CPUFREQ_SHARED_TYPE_ALL (2) /* All dependent CPUs should set freq */
> -#define CPUFREQ_SHARED_TYPE_ANY (3) /* Freq can be set from any dependent
> CPU*/
> -
> -/******************** cpufreq transition notifiers *******************/
> -
> -struct cpufreq_freqs {
> - unsigned int cpu; /* cpu nr */
> - unsigned int old;
> - unsigned int new;
> - u8 flags; /* flags of cpufreq_driver, see below. */
> -};
> -
> -
> -/*********************************************************************
> - * CPUFREQ GOVERNORS *
> - *********************************************************************/
> -
> -#define CPUFREQ_GOV_START 1
> -#define CPUFREQ_GOV_STOP 2
> -#define CPUFREQ_GOV_LIMITS 3
> -
> -struct cpufreq_governor {
> - char name[CPUFREQ_NAME_LEN];
> - int (*governor)(struct cpufreq_policy *policy,
> - unsigned int event);
> - bool_t (*handle_option)(const char *name, const char *value);
> - struct list_head governor_list;
> -};
> -
> -extern struct cpufreq_governor *cpufreq_opt_governor;
> -extern struct cpufreq_governor cpufreq_gov_dbs;
> -extern struct cpufreq_governor cpufreq_gov_userspace;
> -extern struct cpufreq_governor cpufreq_gov_performance;
> -extern struct cpufreq_governor cpufreq_gov_powersave;
> -
> -extern struct list_head cpufreq_governor_list;
> -
> -extern int cpufreq_register_governor(struct cpufreq_governor *governor);
> -extern struct cpufreq_governor *__find_governor(const char *governor);
> -#define CPUFREQ_DEFAULT_GOVERNOR &cpufreq_gov_dbs
> -
> -/* pass a target to the cpufreq driver */
> -extern int __cpufreq_driver_target(struct cpufreq_policy *policy,
> - unsigned int target_freq,
> - unsigned int relation);
> -
> -#define GOV_GETAVG 1
> -#define USR_GETAVG 2
> -extern int cpufreq_driver_getavg(unsigned int cpu, unsigned int flag);
> -
> -#define CPUFREQ_TURBO_DISABLED -1
> -#define CPUFREQ_TURBO_UNSUPPORTED 0
> -#define CPUFREQ_TURBO_ENABLED 1
> -
> -extern int cpufreq_update_turbo(int cpuid, int new_state);
> -extern int cpufreq_get_turbo_status(int cpuid);
> -
> -static __inline__ int
> -__cpufreq_governor(struct cpufreq_policy *policy, unsigned int event)
> -{
> - return policy->governor->governor(policy, event);
> -}
> -
> -
> -/*********************************************************************
> - * CPUFREQ DRIVER INTERFACE *
> - *********************************************************************/
> -
> -#define CPUFREQ_RELATION_L 0 /* lowest frequency at or above target */
> -#define CPUFREQ_RELATION_H 1 /* highest frequency below or at target */
> -
> -struct cpufreq_driver {
> - char name[CPUFREQ_NAME_LEN];
> - int (*init)(struct cpufreq_policy *policy);
> - int (*verify)(struct cpufreq_policy *policy);
> - int (*update)(int cpuid, struct cpufreq_policy *policy);
> - int (*target)(struct cpufreq_policy *policy,
> - unsigned int target_freq,
> - unsigned int relation);
> - unsigned int (*get)(unsigned int cpu);
> - unsigned int (*getavg)(unsigned int cpu, unsigned int flag);
> - int (*exit)(struct cpufreq_policy *policy);
> -};
> -
> -extern struct cpufreq_driver *cpufreq_driver;
> -
> -static __inline__
> -int cpufreq_register_driver(struct cpufreq_driver *driver_data)
> -{
> - if (!driver_data ||
> - !driver_data->init ||
> - !driver_data->exit ||
> - !driver_data->verify ||
> - !driver_data->target)
> - return -EINVAL;
> -
> - if (cpufreq_driver)
> - return -EBUSY;
> -
> - cpufreq_driver = driver_data;
> - return 0;
> -}
> -
> -static __inline__
> -int cpufreq_unregister_driver(struct cpufreq_driver *driver)
> -{
> - if (!cpufreq_driver || (driver != cpufreq_driver))
> - return -EINVAL;
> -
> - cpufreq_driver = NULL;
> - return 0;
> -}
> -
> -static __inline__
> -void cpufreq_verify_within_limits(struct cpufreq_policy *policy,
> - unsigned int min, unsigned int max)
> -{
> - if (policy->min < min)
> - policy->min = min;
> - if (policy->max < min)
> - policy->max = min;
> - if (policy->min > max)
> - policy->min = max;
> - if (policy->max > max)
> - policy->max = max;
> - if (policy->min > policy->max)
> - policy->min = policy->max;
> - return;
> -}
> -
> -
> -/*********************************************************************
> - * FREQUENCY TABLE HELPERS *
> - *********************************************************************/
> -
> -#define CPUFREQ_ENTRY_INVALID ~0
> -#define CPUFREQ_TABLE_END ~1
> -
> -struct cpufreq_frequency_table {
> - unsigned int index; /* any */
> - unsigned int frequency; /* kHz - doesn't need to be in ascending
> - * order */
> -};
> -
> -int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
> - struct cpufreq_frequency_table *table);
> -
> -int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
> - struct cpufreq_frequency_table *table);
> -
> -int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
> - struct cpufreq_frequency_table *table,
> - unsigned int target_freq,
> - unsigned int relation,
> - unsigned int *index);
> -
> -
> -/*********************************************************************
> - * UNIFIED DEBUG HELPERS *
> - *********************************************************************/
> -
> -struct cpu_dbs_info_s {
> - uint64_t prev_cpu_idle;
> - uint64_t prev_cpu_wall;
> - struct cpufreq_policy *cur_policy;
> - struct cpufreq_frequency_table *freq_table;
> - int cpu;
> - unsigned int enable:1;
> - unsigned int stoppable:1;
> - unsigned int turbo_enabled:1;
> -};
> -
> -int cpufreq_governor_dbs(struct cpufreq_policy *policy, unsigned int event);
> -int get_cpufreq_ondemand_para(uint32_t *sampling_rate_max,
> - uint32_t *sampling_rate_min,
> - uint32_t *sampling_rate,
> - uint32_t *up_threshold);
> -int write_ondemand_sampling_rate(unsigned int sampling_rate);
> -int write_ondemand_up_threshold(unsigned int up_threshold);
> -
> -int write_userspace_scaling_setspeed(unsigned int cpu, unsigned int freq);
> -
> -void cpufreq_dbs_timer_suspend(void);
> -void cpufreq_dbs_timer_resume(void);
> -
> -#endif /* __XEN_CPUFREQ_PM_H__ */
> diff --git a/xen/include/cpufreq/cpufreq.h b/xen/include/cpufreq/cpufreq.h
> new file mode 100644
> index 0000000..04716f9
> --- /dev/null
> +++ b/xen/include/cpufreq/cpufreq.h
> @@ -0,0 +1,261 @@
> +/*
> + * xen/include/cpufreq/cpufreq.h
> + *
> + * Copyright (C) 2001 Russell King
> + * (C) 2002 - 2003 Dominik Brodowski <linux@xxxxxxxx>
> + *
> + * $Id: cpufreq.h,v 1.36 2003/01/20 17:31:48 db Exp $
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#ifndef __XEN_CPUFREQ_PM_H__
> +#define __XEN_CPUFREQ_PM_H__
> +
> +#include <xen/types.h>
> +#include <xen/list.h>
> +#include <xen/percpu.h>
> +#include <xen/spinlock.h>
> +#include <xen/errno.h>
> +#include <xen/cpumask.h>
> +
> +#include <acpi/cpufreq/processor_perf.h>
> +
> +DECLARE_PER_CPU(spinlock_t, cpufreq_statistic_lock);
> +
> +extern bool_t cpufreq_verbose;
> +
> +struct cpufreq_governor;
> +
> +struct acpi_cpufreq_data {
> + struct processor_performance *acpi_data;
> + struct cpufreq_frequency_table *freq_table;
> + unsigned int arch_cpu_flags;
> +};
> +
> +extern struct acpi_cpufreq_data *cpufreq_drv_data[NR_CPUS];
> +
> +struct cpufreq_cpuinfo {
> + unsigned int max_freq;
> + unsigned int second_max_freq; /* P1 if Turbo Mode is on */
> + unsigned int min_freq;
> + unsigned int transition_latency; /* in 10^(-9) s = nanoseconds */
> +};
> +
> +struct cpufreq_policy {
> + cpumask_var_t cpus; /* affected CPUs */
> + unsigned int shared_type; /* ANY or ALL affected CPUs
> + should set cpufreq */
> + unsigned int cpu; /* cpu nr of registered CPU */
> + struct cpufreq_cpuinfo cpuinfo;
> +
> + unsigned int min; /* in kHz */
> + unsigned int max; /* in kHz */
> + unsigned int cur; /* in kHz, only needed if cpufreq
> + * governors are used */
> + struct cpufreq_governor *governor;
> +
> + bool_t resume; /* flag for cpufreq 1st run
> + * S3 wakeup, hotplug cpu, etc */
> + s8 turbo; /* tristate flag: 0 for unsupported
> + * -1 for disable, 1 for enabled
> + * See CPUFREQ_TURBO_* below for defines */
> + bool_t aperf_mperf; /* CPU has APERF/MPERF MSRs */
> +};
> +DECLARE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_policy);
> +
> +extern int __cpufreq_set_policy(struct cpufreq_policy *data,
> + struct cpufreq_policy *policy);
> +
> +void cpufreq_cmdline_parse(char *);
> +
> +#define CPUFREQ_SHARED_TYPE_NONE (0) /* None */
> +#define CPUFREQ_SHARED_TYPE_HW (1) /* HW does needed coordination */
> +#define CPUFREQ_SHARED_TYPE_ALL (2) /* All dependent CPUs should set freq */
> +#define CPUFREQ_SHARED_TYPE_ANY (3) /* Freq can be set from any dependent
> CPU*/
> +
> +/******************** cpufreq transition notifiers *******************/
> +
> +struct cpufreq_freqs {
> + unsigned int cpu; /* cpu nr */
> + unsigned int old;
> + unsigned int new;
> + u8 flags; /* flags of cpufreq_driver, see below. */
> +};
> +
> +
> +/*********************************************************************
> + * CPUFREQ GOVERNORS *
> + *********************************************************************/
> +
> +#define CPUFREQ_GOV_START 1
> +#define CPUFREQ_GOV_STOP 2
> +#define CPUFREQ_GOV_LIMITS 3
> +
> +struct cpufreq_governor {
> + char name[CPUFREQ_NAME_LEN];
> + int (*governor)(struct cpufreq_policy *policy,
> + unsigned int event);
> + bool_t (*handle_option)(const char *name, const char *value);
> + struct list_head governor_list;
> +};
> +
> +extern struct cpufreq_governor *cpufreq_opt_governor;
> +extern struct cpufreq_governor cpufreq_gov_dbs;
> +extern struct cpufreq_governor cpufreq_gov_userspace;
> +extern struct cpufreq_governor cpufreq_gov_performance;
> +extern struct cpufreq_governor cpufreq_gov_powersave;
> +
> +extern struct list_head cpufreq_governor_list;
> +
> +extern int cpufreq_register_governor(struct cpufreq_governor *governor);
> +extern struct cpufreq_governor *__find_governor(const char *governor);
> +#define CPUFREQ_DEFAULT_GOVERNOR &cpufreq_gov_dbs
> +
> +/* pass a target to the cpufreq driver */
> +extern int __cpufreq_driver_target(struct cpufreq_policy *policy,
> + unsigned int target_freq,
> + unsigned int relation);
> +
> +#define GOV_GETAVG 1
> +#define USR_GETAVG 2
> +extern int cpufreq_driver_getavg(unsigned int cpu, unsigned int flag);
> +
> +#define CPUFREQ_TURBO_DISABLED -1
> +#define CPUFREQ_TURBO_UNSUPPORTED 0
> +#define CPUFREQ_TURBO_ENABLED 1
> +
> +extern int cpufreq_update_turbo(int cpuid, int new_state);
> +extern int cpufreq_get_turbo_status(int cpuid);
> +
> +static __inline__ int
> +__cpufreq_governor(struct cpufreq_policy *policy, unsigned int event)
> +{
> + return policy->governor->governor(policy, event);
> +}
> +
> +
> +/*********************************************************************
> + * CPUFREQ DRIVER INTERFACE *
> + *********************************************************************/
> +
> +#define CPUFREQ_RELATION_L 0 /* lowest frequency at or above target */
> +#define CPUFREQ_RELATION_H 1 /* highest frequency below or at target */
> +
> +struct cpufreq_driver {
> + char name[CPUFREQ_NAME_LEN];
> + int (*init)(struct cpufreq_policy *policy);
> + int (*verify)(struct cpufreq_policy *policy);
> + int (*update)(int cpuid, struct cpufreq_policy *policy);
> + int (*target)(struct cpufreq_policy *policy,
> + unsigned int target_freq,
> + unsigned int relation);
> + unsigned int (*get)(unsigned int cpu);
> + unsigned int (*getavg)(unsigned int cpu, unsigned int flag);
> + int (*exit)(struct cpufreq_policy *policy);
> +};
> +
> +extern struct cpufreq_driver *cpufreq_driver;
> +
> +static __inline__
> +int cpufreq_register_driver(struct cpufreq_driver *driver_data)
> +{
> + if (!driver_data ||
> + !driver_data->init ||
> + !driver_data->exit ||
> + !driver_data->verify ||
> + !driver_data->target)
> + return -EINVAL;
> +
> + if (cpufreq_driver)
> + return -EBUSY;
> +
> + cpufreq_driver = driver_data;
> + return 0;
> +}
> +
> +static __inline__
> +int cpufreq_unregister_driver(struct cpufreq_driver *driver)
> +{
> + if (!cpufreq_driver || (driver != cpufreq_driver))
> + return -EINVAL;
> +
> + cpufreq_driver = NULL;
> + return 0;
> +}
> +
> +static __inline__
> +void cpufreq_verify_within_limits(struct cpufreq_policy *policy,
> + unsigned int min, unsigned int max)
> +{
> + if (policy->min < min)
> + policy->min = min;
> + if (policy->max < min)
> + policy->max = min;
> + if (policy->min > max)
> + policy->min = max;
> + if (policy->max > max)
> + policy->max = max;
> + if (policy->min > policy->max)
> + policy->min = policy->max;
> + return;
> +}
> +
> +
> +/*********************************************************************
> + * FREQUENCY TABLE HELPERS *
> + *********************************************************************/
> +
> +#define CPUFREQ_ENTRY_INVALID ~0
> +#define CPUFREQ_TABLE_END ~1
> +
> +struct cpufreq_frequency_table {
> + unsigned int index; /* any */
> + unsigned int frequency; /* kHz - doesn't need to be in ascending
> + * order */
> +};
> +
> +int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
> + struct cpufreq_frequency_table *table);
> +
> +int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
> + struct cpufreq_frequency_table *table);
> +
> +int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
> + struct cpufreq_frequency_table *table,
> + unsigned int target_freq,
> + unsigned int relation,
> + unsigned int *index);
> +
> +
> +/*********************************************************************
> + * UNIFIED DEBUG HELPERS *
> + *********************************************************************/
> +
> +struct cpu_dbs_info_s {
> + uint64_t prev_cpu_idle;
> + uint64_t prev_cpu_wall;
> + struct cpufreq_policy *cur_policy;
> + struct cpufreq_frequency_table *freq_table;
> + int cpu;
> + unsigned int enable:1;
> + unsigned int stoppable:1;
> + unsigned int turbo_enabled:1;
> +};
> +
> +int cpufreq_governor_dbs(struct cpufreq_policy *policy, unsigned int event);
> +int get_cpufreq_ondemand_para(uint32_t *sampling_rate_max,
> + uint32_t *sampling_rate_min,
> + uint32_t *sampling_rate,
> + uint32_t *up_threshold);
> +int write_ondemand_sampling_rate(unsigned int sampling_rate);
> +int write_ondemand_up_threshold(unsigned int up_threshold);
> +
> +int write_userspace_scaling_setspeed(unsigned int cpu, unsigned int freq);
> +
> +void cpufreq_dbs_timer_suspend(void);
> +void cpufreq_dbs_timer_resume(void);
> +
> +#endif /* __XEN_CPUFREQ_PM_H__ */
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel
|
 |
Lists.xenproject.org is hosted with RackSpace, monitoring our |