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authorPaul Mackerras <paulus@samba.org>2005-10-20 09:23:26 +1000
committerPaul Mackerras <paulus@samba.org>2005-10-20 09:23:26 +1000
commitf2783c15007468c14972e2617db51e9affc7fad9 (patch)
tree6c8f57ee8e5cdaeb810a3ccf7f697576a7df7615 /include/asm-ppc64
parent03f88e9f7145b03fd0d855918d54a3bf5342ac5e (diff)
powerpc: Merge time.c and asm/time.h.
We now use the merged time.c for both 32-bit and 64-bit compilation with ARCH=powerpc, and for ARCH=ppc64, but not for ARCH=ppc32. This removes setup_default_decr (folds its function into time_init) and moves wakeup_decrementer into time.c. This also makes an asm-powerpc/rtc.h. Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-ppc64')
-rw-r--r--include/asm-ppc64/time.h124
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 c6c762cad8b..00000000000
--- 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 */