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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 11:20:03 +0200
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 11:20:03 +0200
commit96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch)
treed947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-i386/tsc.h
parent27bd0c955648646abf2a353a8371d28c37bcd982 (diff)
downloadlinux-96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42.tar.gz
i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-i386/tsc.h')
-rw-r--r--include/asm-i386/tsc.h75
1 files changed, 0 insertions, 75 deletions
diff --git a/include/asm-i386/tsc.h b/include/asm-i386/tsc.h
deleted file mode 100644
index a4d806610b7ff..0000000000000
--- a/include/asm-i386/tsc.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * linux/include/asm-i386/tsc.h
- *
- * i386 TSC related functions
- */
-#ifndef _ASM_i386_TSC_H
-#define _ASM_i386_TSC_H
-
-#include <asm/processor.h>
-
-/*
- * Standard way to access the cycle counter.
- */
-typedef unsigned long long cycles_t;
-
-extern unsigned int cpu_khz;
-extern unsigned int tsc_khz;
-
-static inline cycles_t get_cycles(void)
-{
- unsigned long long ret = 0;
-
-#ifndef CONFIG_X86_TSC
- if (!cpu_has_tsc)
- return 0;
-#endif
-
-#if defined(CONFIG_X86_GENERIC) || defined(CONFIG_X86_TSC)
- rdtscll(ret);
-#endif
- return ret;
-}
-
-/* Like get_cycles, but make sure the CPU is synchronized. */
-static __always_inline cycles_t get_cycles_sync(void)
-{
- unsigned long long ret;
- unsigned eax, edx;
-
- /*
- * Use RDTSCP if possible; it is guaranteed to be synchronous
- * and doesn't cause a VMEXIT on Hypervisors
- */
- alternative_io(ASM_NOP3, ".byte 0x0f,0x01,0xf9", X86_FEATURE_RDTSCP,
- ASM_OUTPUT2("=a" (eax), "=d" (edx)),
- "a" (0U), "d" (0U) : "ecx", "memory");
- ret = (((unsigned long long)edx) << 32) | ((unsigned long long)eax);
- if (ret)
- return ret;
-
- /*
- * Don't do an additional sync on CPUs where we know
- * RDTSC is already synchronous:
- */
- alternative_io("cpuid", ASM_NOP2, X86_FEATURE_SYNC_RDTSC,
- "=a" (eax), "0" (1) : "ebx","ecx","edx","memory");
- rdtscll(ret);
-
- return ret;
-}
-
-extern void tsc_init(void);
-extern void mark_tsc_unstable(char *reason);
-extern int unsynchronized_tsc(void);
-extern void init_tsc_clocksource(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);
-
-#endif