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[PATCH] time: x86_64: split x86_64/kernel/time.c up

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In preparation for the x86_64 generic time conversion, this patch splits out
TSC and HPET related code from arch/x86_64/kernel/time.c into respective
hpet.c and tsc.c files.

[akpm@osdl.org: fix printk timestamps]
[akpm@osdl.org: cleanup]
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@muc.de>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
john stultz
2007-02-16 01:28:19 -08:00
committed by Linus Torvalds
parent 2d0c87c3bc
commit c37e7bb5d2
7 changed files with 687 additions and 663 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/asm-x86_64/hpet.h
+6
View File
@@ -56,9 +56,15 @@
extern int is_hpet_enabled(void);
extern int hpet_rtc_timer_init(void);
extern int apic_is_clustered_box(void);
extern int hpet_arch_init(void);
extern int hpet_timer_stop_set_go(unsigned long tick);
extern int hpet_reenable(void);
extern unsigned int hpet_calibrate_tsc(void);
extern int hpet_use_timer;
extern unsigned long hpet_address;
extern unsigned long hpet_period;
extern unsigned long hpet_tick;
#ifdef CONFIG_HPET_EMULATE_RTC
extern int hpet_mask_rtc_irq_bit(unsigned long bit_mask);
include/asm-x86_64/timex.h
+11
View File
@@ -20,6 +20,17 @@
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 struct vxtime_data vxtime;
extern unsigned int do_gettimeoffset_hpet(void);
extern unsigned int do_gettimeoffset_tsc(void);
extern void set_cyc2ns_scale(unsigned long khz);
extern int notsc;
#endif