ia64/xen-unstable

view linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/timer.h @ 11221:7c9d7fc3dce5

[HVM] Fix SMBIOS entry point copy destination.
Spotted by Xiaowei Yang <xiaowei.yang@intel.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
author kaf24@localhost.localdomain
date Sat Aug 19 12:06:36 2006 +0100 (2006-08-19)
parents 4b06313b9790
children
line source
1 #ifndef _ASMi386_TIMER_H
2 #define _ASMi386_TIMER_H
3 #include <linux/init.h>
5 /**
6 * struct timer_ops - used to define a timer source
7 *
8 * @name: name of the timer.
9 * @init: Probes and initializes the timer. Takes clock= override
10 * string as an argument. Returns 0 on success, anything else
11 * on failure.
12 * @mark_offset: called by the timer interrupt.
13 * @get_offset: called by gettimeofday(). Returns the number of microseconds
14 * since the last timer interupt.
15 * @monotonic_clock: returns the number of nanoseconds since the init of the
16 * timer.
17 * @delay: delays this many clock cycles.
18 */
19 struct timer_opts {
20 char* name;
21 void (*mark_offset)(void);
22 unsigned long (*get_offset)(void);
23 unsigned long long (*monotonic_clock)(void);
24 void (*delay)(unsigned long);
25 unsigned long (*read_timer)(void);
26 int (*suspend)(pm_message_t state);
27 int (*resume)(void);
28 };
30 struct init_timer_opts {
31 int (*init)(char *override);
32 struct timer_opts *opts;
33 };
35 #define TICK_SIZE (tick_nsec / 1000)
37 extern struct timer_opts* __init select_timer(void);
38 extern void clock_fallback(void);
39 void setup_pit_timer(void);
41 /* Modifiers for buggy PIT handling */
43 extern int pit_latch_buggy;
45 extern struct timer_opts *cur_timer;
46 extern int timer_ack;
48 /* list of externed timers */
49 extern struct timer_opts timer_none;
50 extern struct timer_opts timer_pit;
51 extern struct init_timer_opts timer_pit_init;
52 extern struct init_timer_opts timer_tsc_init;
53 #ifdef CONFIG_X86_CYCLONE_TIMER
54 extern struct init_timer_opts timer_cyclone_init;
55 #endif
57 extern unsigned long calibrate_tsc(void);
58 extern void init_cpu_khz(void);
59 #ifdef CONFIG_HPET_TIMER
60 extern struct init_timer_opts timer_hpet_init;
61 extern unsigned long calibrate_tsc_hpet(unsigned long *tsc_hpet_quotient_ptr);
62 #endif
64 #ifdef CONFIG_X86_PM_TIMER
65 extern struct init_timer_opts timer_pmtmr_init;
66 #endif
67 #endif