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Diffstat (limited to 'include/asm-ppc64/time.h')
| -rw-r--r-- | include/asm-ppc64/time.h | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/include/asm-ppc64/time.h b/include/asm-ppc64/time.h deleted file mode 100644 index c6c762cad8b0..000000000000 --- a/include/asm-ppc64/time.h +++ /dev/null @@ -1,124 +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 __PPC64_TIME_H -#define __PPC64_TIME_H - -#ifdef __KERNEL__ -#include <linux/config.h> -#include <linux/types.h> -#include <linux/mc146818rtc.h> - -#include <asm/processor.h> -#include <asm/paca.h> -#include <asm/iSeries/HvCall.h> - -/* time.c */ -extern unsigned long tb_ticks_per_jiffy; -extern unsigned long tb_ticks_per_usec; -extern unsigned long tb_ticks_per_sec; -extern unsigned long tb_to_xs; -extern unsigned tb_to_us; -extern unsigned long tb_last_stamp; - -struct rtc_time; -extern void to_tm(int tim, struct rtc_time * tm); -extern time_t last_rtc_update; - -void generic_calibrate_decr(void); -void setup_default_decr(void); - -/* 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 - */ -struct gettimeofday_vars { - unsigned long tb_to_xs; - unsigned long stamp_xsec; - unsigned long 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 { - unsigned long result_high; - unsigned long result_low; -}; - -int via_calibrate_decr(void); - -static __inline__ unsigned long get_tb(void) -{ - return mftb(); -} - -/* Accessor functions for the decrementer register. */ -static __inline__ unsigned int get_dec(void) -{ - return (mfspr(SPRN_DEC)); -} - -static __inline__ void set_dec(int val) -{ -#ifdef CONFIG_PPC_ISERIES - struct paca_struct *lpaca = get_paca(); - int cur_dec; - - if (lpaca->lppaca.shared_proc) { - lpaca->lppaca.virtual_decr = val; - cur_dec = get_dec(); - if (cur_dec > val) - HvCall_setVirtualDecr(); - } else -#endif - mtspr(SPRN_DEC, val); -} - -static inline unsigned long tb_ticks_since(unsigned long tstamp) -{ - return get_tb() - tstamp; -} - -#define mulhwu(x,y) \ -({unsigned z; asm ("mulhwu %0,%1,%2" : "=r" (z) : "r" (x), "r" (y)); z;}) -#define mulhdu(x,y) \ -({unsigned long z; asm ("mulhdu %0,%1,%2" : "=r" (z) : "r" (x), "r" (y)); z;}) - - -unsigned mulhwu_scale_factor(unsigned, unsigned); -void div128_by_32( unsigned long dividend_high, unsigned long 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); - -#endif /* __KERNEL__ */ -#endif /* __PPC64_TIME_H */ |
