diff options
author | Paul Mackerras <paulus@samba.org> | 2005-10-19 19:23:26 -0400 |
---|---|---|
committer | Paul Mackerras <paulus@samba.org> | 2005-10-19 19:23:26 -0400 |
commit | f2783c15007468c14972e2617db51e9affc7fad9 (patch) | |
tree | 6c8f57ee8e5cdaeb810a3ccf7f697576a7df7615 /include/asm-ppc64/time.h | |
parent | 03f88e9f7145b03fd0d855918d54a3bf5342ac5e (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/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 @@ | |||
1 | /* | ||
2 | * Common time prototypes and such for all ppc machines. | ||
3 | * | ||
4 | * Written by Cort Dougan (cort@cs.nmt.edu) to merge | ||
5 | * Paul Mackerras' version and mine for PReP and Pmac. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or | ||
8 | * modify it under the terms of the GNU General Public License | ||
9 | * as published by the Free Software Foundation; either version | ||
10 | * 2 of the License, or (at your option) any later version. | ||
11 | */ | ||
12 | |||
13 | #ifndef __PPC64_TIME_H | ||
14 | #define __PPC64_TIME_H | ||
15 | |||
16 | #ifdef __KERNEL__ | ||
17 | #include <linux/config.h> | ||
18 | #include <linux/types.h> | ||
19 | #include <linux/mc146818rtc.h> | ||
20 | |||
21 | #include <asm/processor.h> | ||
22 | #include <asm/paca.h> | ||
23 | #include <asm/iSeries/HvCall.h> | ||
24 | |||
25 | /* time.c */ | ||
26 | extern unsigned long tb_ticks_per_jiffy; | ||
27 | extern unsigned long tb_ticks_per_usec; | ||
28 | extern unsigned long tb_ticks_per_sec; | ||
29 | extern unsigned long tb_to_xs; | ||
30 | extern unsigned tb_to_us; | ||
31 | extern unsigned long tb_last_stamp; | ||
32 | |||
33 | struct rtc_time; | ||
34 | extern void to_tm(int tim, struct rtc_time * tm); | ||
35 | extern time_t last_rtc_update; | ||
36 | |||
37 | void generic_calibrate_decr(void); | ||
38 | void setup_default_decr(void); | ||
39 | |||
40 | /* Some sane defaults: 125 MHz timebase, 1GHz processor */ | ||
41 | extern unsigned long ppc_proc_freq; | ||
42 | #define DEFAULT_PROC_FREQ (DEFAULT_TB_FREQ * 8) | ||
43 | extern unsigned long ppc_tb_freq; | ||
44 | #define DEFAULT_TB_FREQ 125000000UL | ||
45 | |||
46 | /* | ||
47 | * By putting all of this stuff into a single struct we | ||
48 | * reduce the number of cache lines touched by do_gettimeofday. | ||
49 | * Both by collecting all of the data in one cache line and | ||
50 | * by touching only one TOC entry | ||
51 | */ | ||
52 | struct gettimeofday_vars { | ||
53 | unsigned long tb_to_xs; | ||
54 | unsigned long stamp_xsec; | ||
55 | unsigned long tb_orig_stamp; | ||
56 | }; | ||
57 | |||
58 | struct gettimeofday_struct { | ||
59 | unsigned long tb_ticks_per_sec; | ||
60 | struct gettimeofday_vars vars[2]; | ||
61 | struct gettimeofday_vars * volatile varp; | ||
62 | unsigned var_idx; | ||
63 | unsigned tb_to_us; | ||
64 | }; | ||
65 | |||
66 | struct div_result { | ||
67 | unsigned long result_high; | ||
68 | unsigned long result_low; | ||
69 | }; | ||
70 | |||
71 | int via_calibrate_decr(void); | ||
72 | |||
73 | static __inline__ unsigned long get_tb(void) | ||
74 | { | ||
75 | return mftb(); | ||
76 | } | ||
77 | |||
78 | /* Accessor functions for the decrementer register. */ | ||
79 | static __inline__ unsigned int get_dec(void) | ||
80 | { | ||
81 | return (mfspr(SPRN_DEC)); | ||
82 | } | ||
83 | |||
84 | static __inline__ void set_dec(int val) | ||
85 | { | ||
86 | #ifdef CONFIG_PPC_ISERIES | ||
87 | struct paca_struct *lpaca = get_paca(); | ||
88 | int cur_dec; | ||
89 | |||
90 | if (lpaca->lppaca.shared_proc) { | ||
91 | lpaca->lppaca.virtual_decr = val; | ||
92 | cur_dec = get_dec(); | ||
93 | if (cur_dec > val) | ||
94 | HvCall_setVirtualDecr(); | ||
95 | } else | ||
96 | #endif | ||
97 | mtspr(SPRN_DEC, val); | ||
98 | } | ||
99 | |||
100 | static inline unsigned long tb_ticks_since(unsigned long tstamp) | ||
101 | { | ||
102 | return get_tb() - tstamp; | ||
103 | } | ||
104 | |||
105 | #define mulhwu(x,y) \ | ||
106 | ({unsigned z; asm ("mulhwu %0,%1,%2" : "=r" (z) : "r" (x), "r" (y)); z;}) | ||
107 | #define mulhdu(x,y) \ | ||
108 | ({unsigned long z; asm ("mulhdu %0,%1,%2" : "=r" (z) : "r" (x), "r" (y)); z;}) | ||
109 | |||
110 | |||
111 | unsigned mulhwu_scale_factor(unsigned, unsigned); | ||
112 | void div128_by_32( unsigned long dividend_high, unsigned long dividend_low, | ||
113 | unsigned divisor, struct div_result *dr ); | ||
114 | |||
115 | /* Used to store Processor Utilization register (purr) values */ | ||
116 | |||
117 | struct cpu_usage { | ||
118 | u64 current_tb; /* Holds the current purr register values */ | ||
119 | }; | ||
120 | |||
121 | DECLARE_PER_CPU(struct cpu_usage, cpu_usage_array); | ||
122 | |||
123 | #endif /* __KERNEL__ */ | ||
124 | #endif /* __PPC64_TIME_H */ | ||