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-rw-r--r--include/asm-powerpc/time.h255
1 files changed, 0 insertions, 255 deletions
diff --git a/include/asm-powerpc/time.h b/include/asm-powerpc/time.h
deleted file mode 100644
index febd581ec9b0..000000000000
--- a/include/asm-powerpc/time.h
+++ /dev/null
@@ -1,255 +0,0 @@
-/*
- * Common time prototypes and such for all ppc machines.
- *
- * Written by Cort Dougan (cort@cs.nmt.edu) to merge
- * Paul Mackerras' version and mine for PReP and Pmac.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef __POWERPC_TIME_H
-#define __POWERPC_TIME_H
-
-#ifdef __KERNEL__
-#include <linux/types.h>
-#include <linux/percpu.h>
-
-#include <asm/processor.h>
-#ifdef CONFIG_PPC_ISERIES
-#include <asm/paca.h>
-#include <asm/firmware.h>
-#include <asm/iseries/hv_call.h>
-#endif
-
-/* time.c */
-extern unsigned long tb_ticks_per_jiffy;
-extern unsigned long tb_ticks_per_usec;
-extern unsigned long tb_ticks_per_sec;
-extern u64 tb_to_xs;
-extern unsigned tb_to_us;
-
-struct rtc_time;
-extern void to_tm(int tim, struct rtc_time * tm);
-extern void GregorianDay(struct rtc_time *tm);
-extern time_t last_rtc_update;
-
-extern void generic_calibrate_decr(void);
-extern void wakeup_decrementer(void);
-extern void snapshot_timebase(void);
-
-extern void set_dec_cpu6(unsigned int val);
-
-/* Some sane defaults: 125 MHz timebase, 1GHz processor */
-extern unsigned long ppc_proc_freq;
-#define DEFAULT_PROC_FREQ (DEFAULT_TB_FREQ * 8)
-extern unsigned long ppc_tb_freq;
-#define DEFAULT_TB_FREQ 125000000UL
-
-/*
- * By putting all of this stuff into a single struct we
- * reduce the number of cache lines touched by do_gettimeofday.
- * Both by collecting all of the data in one cache line and
- * by touching only one TOC entry on ppc64.
- */
-struct gettimeofday_vars {
- u64 tb_to_xs;
- u64 stamp_xsec;
- u64 tb_orig_stamp;
-};
-
-struct gettimeofday_struct {
- unsigned long tb_ticks_per_sec;
- struct gettimeofday_vars vars[2];
- struct gettimeofday_vars * volatile varp;
- unsigned var_idx;
- unsigned tb_to_us;
-};
-
-struct div_result {
- u64 result_high;
- u64 result_low;
-};
-
-/* Accessor functions for the timebase (RTC on 601) registers. */
-/* If one day CONFIG_POWER is added just define __USE_RTC as 1 */
-#ifdef CONFIG_6xx
-#define __USE_RTC() (!cpu_has_feature(CPU_FTR_USE_TB))
-#else
-#define __USE_RTC() 0
-#endif
-
-#ifdef CONFIG_PPC64
-
-/* For compatibility, get_tbl() is defined as get_tb() on ppc64 */
-#define get_tbl get_tb
-
-#else
-
-static inline unsigned long get_tbl(void)
-{
-#if defined(CONFIG_403GCX)
- unsigned long tbl;
- asm volatile("mfspr %0, 0x3dd" : "=r" (tbl));
- return tbl;
-#else
- return mftbl();
-#endif
-}
-
-static inline unsigned int get_tbu(void)
-{
-#ifdef CONFIG_403GCX
- unsigned int tbu;
- asm volatile("mfspr %0, 0x3dc" : "=r" (tbu));
- return tbu;
-#else
- return mftbu();
-#endif
-}
-#endif /* !CONFIG_PPC64 */
-
-static inline unsigned int get_rtcl(void)
-{
- unsigned int rtcl;
-
- asm volatile("mfrtcl %0" : "=r" (rtcl));
- return rtcl;
-}
-
-static inline u64 get_rtc(void)
-{
- unsigned int hi, lo, hi2;
-
- do {
- asm volatile("mfrtcu %0; mfrtcl %1; mfrtcu %2"
- : "=r" (hi), "=r" (lo), "=r" (hi2));
- } while (hi2 != hi);
- return (u64)hi * 1000000000 + lo;
-}
-
-#ifdef CONFIG_PPC64
-static inline u64 get_tb(void)
-{
- return mftb();
-}
-#else /* CONFIG_PPC64 */
-static inline u64 get_tb(void)
-{
- unsigned int tbhi, tblo, tbhi2;
-
- do {
- tbhi = get_tbu();
- tblo = get_tbl();
- tbhi2 = get_tbu();
- } while (tbhi != tbhi2);
-
- return ((u64)tbhi << 32) | tblo;
-}
-#endif /* !CONFIG_PPC64 */
-
-static inline u64 get_tb_or_rtc(void)
-{
- return __USE_RTC() ? get_rtc() : get_tb();
-}
-
-static inline void set_tb(unsigned int upper, unsigned int lower)
-{
- mtspr(SPRN_TBWL, 0);
- mtspr(SPRN_TBWU, upper);
- mtspr(SPRN_TBWL, lower);
-}
-
-/* Accessor functions for the decrementer register.
- * The 4xx doesn't even have a decrementer. I tried to use the
- * generic timer interrupt code, which seems OK, with the 4xx PIT
- * in auto-reload mode. The problem is PIT stops counting when it
- * hits zero. If it would wrap, we could use it just like a decrementer.
- */
-static inline unsigned int get_dec(void)
-{
-#if defined(CONFIG_40x)
- return (mfspr(SPRN_PIT));
-#else
- return (mfspr(SPRN_DEC));
-#endif
-}
-
-/*
- * Note: Book E and 4xx processors differ from other PowerPC processors
- * in when the decrementer generates its interrupt: on the 1 to 0
- * transition for Book E/4xx, but on the 0 to -1 transition for others.
- */
-static inline void set_dec(int val)
-{
-#if defined(CONFIG_40x)
- mtspr(SPRN_PIT, val);
-#elif defined(CONFIG_8xx_CPU6)
- set_dec_cpu6(val - 1);
-#else
-#ifndef CONFIG_BOOKE
- --val;
-#endif
-#ifdef CONFIG_PPC_ISERIES
- if (firmware_has_feature(FW_FEATURE_ISERIES) &&
- get_lppaca()->shared_proc) {
- get_lppaca()->virtual_decr = val;
- if (get_dec() > val)
- HvCall_setVirtualDecr();
- return;
- }
-#endif
- mtspr(SPRN_DEC, val);
-#endif /* not 40x or 8xx_CPU6 */
-}
-
-static inline unsigned long tb_ticks_since(unsigned long tstamp)
-{
- if (__USE_RTC()) {
- int delta = get_rtcl() - (unsigned int) tstamp;
- return delta < 0 ? delta + 1000000000 : delta;
- }
- return get_tbl() - tstamp;
-}
-
-#define mulhwu(x,y) \
-({unsigned z; asm ("mulhwu %0,%1,%2" : "=r" (z) : "r" (x), "r" (y)); z;})
-
-#ifdef CONFIG_PPC64
-#define mulhdu(x,y) \
-({unsigned long z; asm ("mulhdu %0,%1,%2" : "=r" (z) : "r" (x), "r" (y)); z;})
-#else
-extern u64 mulhdu(u64, u64);
-#endif
-
-extern void smp_space_timers(unsigned int);
-
-extern unsigned mulhwu_scale_factor(unsigned, unsigned);
-extern void div128_by_32(u64 dividend_high, u64 dividend_low,
- unsigned divisor, struct div_result *dr);
-
-/* Used to store Processor Utilization register (purr) values */
-
-struct cpu_usage {
- u64 current_tb; /* Holds the current purr register values */
-};
-
-DECLARE_PER_CPU(struct cpu_usage, cpu_usage_array);
-
-#if defined(CONFIG_VIRT_CPU_ACCOUNTING)
-extern void calculate_steal_time(void);
-extern void snapshot_timebases(void);
-#define account_process_vtime(tsk) account_process_tick(tsk, 0)
-#else
-#define calculate_steal_time() do { } while (0)
-#define snapshot_timebases() do { } while (0)
-#define account_process_vtime(tsk) do { } while (0)
-#endif
-
-extern void secondary_cpu_time_init(void);
-extern void iSeries_time_init_early(void);
-
-#endif /* __KERNEL__ */
-#endif /* __POWERPC_TIME_H */
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