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| author | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-18 05:05:42 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2008-10-23 09:55:20 +0400 |
| commit | bb8985586b7a906e116db835c64773b7a7d51663 (patch) | |
| tree | de93ae58e88cc563d95cc124a73f3930594c6100 /include/asm-x86/tsc.h | |
| parent | 8ede0bdb63305d3353efd97e9af6210afb05734e (diff) | |
| download | linux-bb8985586b7a906e116db835c64773b7a7d51663.tar.xz | |
x86, um: ... and asm-x86 move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'include/asm-x86/tsc.h')
| -rw-r--r-- | include/asm-x86/tsc.h | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/include/asm-x86/tsc.h b/include/asm-x86/tsc.h deleted file mode 100644 index ad0f5c41e78c..000000000000 --- a/include/asm-x86/tsc.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * x86 TSC related functions - */ -#ifndef ASM_X86__TSC_H -#define ASM_X86__TSC_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. - */ -typedef unsigned long long cycles_t; - -extern unsigned int cpu_khz; -extern unsigned int tsc_khz; - -extern void disable_TSC(void); - -static inline cycles_t get_cycles(void) -{ - unsigned long long ret = 0; - -#ifndef CONFIG_X86_TSC - if (!cpu_has_tsc) - return 0; -#endif - rdtscll(ret); - - return ret; -} - -static __always_inline cycles_t vget_cycles(void) -{ - /* - * We only do VDSOs on TSC capable CPUs, so this shouldnt - * access boot_cpu_data (which is not VDSO-safe): - */ -#ifndef CONFIG_X86_TSC - if (!cpu_has_tsc) - return 0; -#endif - return (cycles_t)__native_read_tsc(); -} - -extern void tsc_init(void); -extern void mark_tsc_unstable(char *reason); -extern int unsynchronized_tsc(void); -int check_tsc_unstable(void); - -/* - * Boot-time check whether the TSCs are synchronized across - * all CPUs/cores: - */ -extern void check_tsc_sync_source(int cpu); -extern void check_tsc_sync_target(void); - -extern int notsc_setup(char *); - -#endif /* ASM_X86__TSC_H */ |