Commit 2f0798a3 authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Thomas Gleixner

x86: unify timex.h variants

Combine the timex.h variants and move the TSC related code into tsc.h.
Move the set_cyc2ns_scale() call into the tsc calibraction code, where
it belongs.
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarArjan van de Ven <arjan@linux.intel.com>
parent 5d5a2989
...@@ -328,7 +328,6 @@ void __init time_init(void) ...@@ -328,7 +328,6 @@ void __init time_init(void)
else else
vgetcpu_mode = VGETCPU_LSL; vgetcpu_mode = VGETCPU_LSL;
set_cyc2ns_scale(tsc_khz);
printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n", printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n",
cpu_khz / 1000, cpu_khz % 1000); cpu_khz / 1000, cpu_khz % 1000);
init_tsc_clocksource(); init_tsc_clocksource();
......
...@@ -20,7 +20,7 @@ EXPORT_SYMBOL(tsc_khz); ...@@ -20,7 +20,7 @@ EXPORT_SYMBOL(tsc_khz);
static unsigned int cyc2ns_scale __read_mostly; static unsigned int cyc2ns_scale __read_mostly;
void set_cyc2ns_scale(unsigned long khz) static inline void set_cyc2ns_scale(unsigned long khz)
{ {
cyc2ns_scale = (NSEC_PER_MSEC << NS_SCALE) / khz; cyc2ns_scale = (NSEC_PER_MSEC << NS_SCALE) / khz;
} }
...@@ -206,6 +206,7 @@ void __init tsc_calibrate(void) ...@@ -206,6 +206,7 @@ void __init tsc_calibrate(void)
} }
tsc_khz = tsc2 / tsc1; tsc_khz = tsc2 / tsc1;
set_cyc2ns_scale(tsc_khz);
} }
/* /*
......
#ifdef CONFIG_X86_32 /* x86 architecture timex specifications */
# include "timex_32.h" #ifndef _ASM_X86_TIMEX_H
#define _ASM_X86_TIMEX_H
#include <asm/processor.h>
#include <asm/tsc.h>
#ifdef CONFIG_X86_ELAN
# define PIT_TICK_RATE 1189200 /* AMD Elan has different frequency! */
#else #else
# include "timex_64.h" # define PIT_TICK_RATE 1193182 /* Underlying HZ */
#endif
#define CLOCK_TICK_RATE PIT_TICK_RATE
extern int read_current_timer(unsigned long *timer_value);
#define ARCH_HAS_READ_CURRENT_TIMER 1
#endif #endif
/*
* linux/include/asm-i386/timex.h
*
* i386 architecture timex specifications
*/
#ifndef _ASMi386_TIMEX_H
#define _ASMi386_TIMEX_H
#include <asm/processor.h>
#include <asm/tsc.h>
#ifdef CONFIG_X86_ELAN
# define PIT_TICK_RATE 1189200 /* AMD Elan has different frequency! */
#else
# define PIT_TICK_RATE 1193182 /* Underlying HZ */
#endif
#define CLOCK_TICK_RATE PIT_TICK_RATE
extern int read_current_timer(unsigned long *timer_value);
#define ARCH_HAS_READ_CURRENT_TIMER 1
#endif
/*
* linux/include/asm-x86_64/timex.h
*
* x86-64 architecture timex specifications
*/
#ifndef _ASMx8664_TIMEX_H
#define _ASMx8664_TIMEX_H
#include <asm/msr.h>
#include <asm/vsyscall.h>
#include <asm/system.h>
#include <asm/processor.h>
#include <asm/tsc.h>
#include <linux/compiler.h>
#define PIT_TICK_RATE 1193182UL
#define CLOCK_TICK_RATE PIT_TICK_RATE /* Underlying HZ */
extern int read_current_timer(unsigned long *timer_value);
#define ARCH_HAS_READ_CURRENT_TIMER 1
#define USEC_PER_TICK (USEC_PER_SEC / HZ)
#define NSEC_PER_TICK (NSEC_PER_SEC / HZ)
#define FSEC_PER_TICK (FSEC_PER_SEC / HZ)
#define NS_SCALE 10 /* 2^10, carefully chosen */
#define US_SCALE 32 /* 2^32, arbitralrily chosen */
extern void mark_tsc_unstable(char *msg);
extern void set_cyc2ns_scale(unsigned long khz);
#endif
/* /*
* linux/include/asm-i386/tsc.h * x86 TSC related functions
*
* i386 TSC related functions
*/ */
#ifndef _ASM_i386_TSC_H #ifndef _ASM_X86_TSC_H
#define _ASM_i386_TSC_H #define _ASM_X86_TSC_H
#include <asm/processor.h> #include <asm/processor.h>
#define NS_SCALE 10 /* 2^10, carefully chosen */
#define US_SCALE 32 /* 2^32, arbitralrily chosen */
/* /*
* Standard way to access the cycle counter. * Standard way to access the cycle counter.
*/ */
......
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