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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-23 10:22:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-23 10:22:01 -0700
commit5b34653963de7a6d0d8c783527457d68fddc60fb (patch)
tree1a234741e1823a54cd0514616f783b4cf503a528 /include/asm-x86/timer.h
parent765426e8ee4c0ab2bc9d44951f4865b8494cdbd0 (diff)
parent5e1b00758b5a8bee9d42515bffdaf305a32f1b04 (diff)
Merge branch 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits) x86: canonicalize remaining header guards x86: drop double underscores from header guards x86: Fix ASM_X86__ header guards x86, um: get rid of uml-config.h x86, um: get rid of arch/um/Kconfig.arch x86, um: get rid of arch/um/os symlink x86, um: get rid of excessive includes of uml-config.h x86, um: get rid of header symlinks x86, um: merge Kconfig.i386 and Kconfig.x86_64 x86, um: get rid of sysdep symlink x86, um: trim the junk from uml ptrace-*.h x86, um: take vm-flags.h to sysdep x86, um: get rid of uml asm/arch x86, um: get rid of uml highmem.h x86, um: get rid of uml unistd.h x86, um: get rid of system.h -> system.h include x86, um: uml atomic.h is not needed anymore x86, um: untangle uml ldt.h x86, um: get rid of more uml asm/arch uses x86, um: remove dead header (uml module-generic.h; never used these days) ...
Diffstat (limited to 'include/asm-x86/timer.h')
-rw-r--r--include/asm-x86/timer.h66
1 files changed, 0 insertions, 66 deletions
diff --git a/include/asm-x86/timer.h b/include/asm-x86/timer.h
deleted file mode 100644
index d0babce4b47..00000000000
--- a/include/asm-x86/timer.h
+++ /dev/null
@@ -1,66 +0,0 @@
-#ifndef ASM_X86__TIMER_H
-#define ASM_X86__TIMER_H
-#include <linux/init.h>
-#include <linux/pm.h>
-#include <linux/percpu.h>
-
-#define TICK_SIZE (tick_nsec / 1000)
-
-unsigned long long native_sched_clock(void);
-unsigned long native_calibrate_tsc(void);
-
-#ifdef CONFIG_X86_32
-extern int timer_ack;
-extern int recalibrate_cpu_khz(void);
-#endif /* CONFIG_X86_32 */
-
-extern int no_timer_check;
-
-#ifndef CONFIG_PARAVIRT
-#define calibrate_tsc() native_calibrate_tsc()
-#endif
-
-/* Accelerators for sched_clock()
- * convert from cycles(64bits) => nanoseconds (64bits)
- * basic equation:
- * ns = cycles / (freq / ns_per_sec)
- * ns = cycles * (ns_per_sec / freq)
- * ns = cycles * (10^9 / (cpu_khz * 10^3))
- * ns = cycles * (10^6 / cpu_khz)
- *
- * Then we use scaling math (suggested by george@mvista.com) to get:
- * ns = cycles * (10^6 * SC / cpu_khz) / SC
- * ns = cycles * cyc2ns_scale / SC
- *
- * And since SC is a constant power of two, we can convert the div
- * into a shift.
- *
- * We can use khz divisor instead of mhz to keep a better precision, since
- * cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits.
- * (mathieu.desnoyers@polymtl.ca)
- *
- * -johnstul@us.ibm.com "math is hard, lets go shopping!"
- */
-
-DECLARE_PER_CPU(unsigned long, cyc2ns);
-
-#define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */
-
-static inline unsigned long long __cycles_2_ns(unsigned long long cyc)
-{
- return cyc * per_cpu(cyc2ns, smp_processor_id()) >> CYC2NS_SCALE_FACTOR;
-}
-
-static inline unsigned long long cycles_2_ns(unsigned long long cyc)
-{
- unsigned long long ns;
- unsigned long flags;
-
- local_irq_save(flags);
- ns = __cycles_2_ns(cyc);
- local_irq_restore(flags);
-
- return ns;
-}
-
-#endif /* ASM_X86__TIMER_H */