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arm,arm64,drivers: move externs in a new header file 

Create a new header file (include/linux/arch_topology.h) and put there
declarations of interfaces used by arm, arm64 and drivers code.

Signed-off-by: Juri Lelli <juri.lelli@arm.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Juri Lelli 2017-05-31 17:59:30 +01:00 committed by Greg Kroah-Hartman
parent c105aa3118
commit 615ffd6314
4 changed files with 20 additions and 9 deletions
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7
arch/arm/kernel/topology.c
View File

@ -11,6 +11,7 @@
* for more details.
*/
#include <linux/arch_topology.h>
#include <linux/cpu.h>
#include <linux/cpufreq.h>
#include <linux/cpumask.h>
@ -45,10 +46,6 @@
* updated during this sequence.
*/
extern unsigned long
arch_scale_cpu_capacity(struct sched_domain *sd, int cpu);
extern void set_capacity_scale(unsigned int cpu, unsigned long capacity);
#ifdef CONFIG_OF
struct cpu_efficiency {
const char *compatible;
@ -76,8 +73,6 @@ static unsigned long *__cpu_capacity;
static unsigned long middle_capacity = 1;
static bool cap_from_dt = true;
extern void normalize_cpu_capacity(void);
extern int __init parse_cpu_capacity(struct device_node *cpu_node, int cpu);
/*
* Iterate all CPUs' descriptor in DT and compute the efficiency

4
arch/arm64/kernel/topology.c
View File

@ -11,6 +11,7 @@
* for more details.
*/
#include <linux/arch_topology.h>
#include <linux/cpu.h>
#include <linux/cpumask.h>
#include <linux/init.h>
@ -27,9 +28,6 @@
#include <asm/cputype.h>
#include <asm/topology.h>
extern void normalize_cpu_capacity(void);
extern int __init parse_cpu_capacity(struct device_node *cpu_node, int cpu);
static int __init get_cpu_for_node(struct device_node *node)
{
struct device_node *cpu_node;

1
drivers/base/arch_topology.c
View File

@ -13,6 +13,7 @@
*/
#include <linux/acpi.h>
#include <linux/arch_topology.h>
#include <linux/cpu.h>
#include <linux/cpufreq.h>
#include <linux/device.h>

17
include/linux/arch_topology.h Normal file
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@ -0,0 +1,17 @@
/*
* include/linux/arch_topology.h - arch specific cpu topology information
*/
#ifndef _LINUX_ARCH_TOPOLOGY_H_
#define _LINUX_ARCH_TOPOLOGY_H_
void normalize_cpu_capacity(void);
struct device_node;
int parse_cpu_capacity(struct device_node *cpu_node, int cpu);
struct sched_domain;
unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu);
void set_capacity_scale(unsigned int cpu, unsigned long capacity);
#endif /* _LINUX_ARCH_TOPOLOGY_H_ */