diff options
Diffstat (limited to 'arch/i386/kernel/timers/timer_none.c')
-rw-r--r-- | arch/i386/kernel/timers/timer_none.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/i386/kernel/timers/timer_none.c b/arch/i386/kernel/timers/timer_none.c new file mode 100644 index 00000000000..4ea2f414dbb --- /dev/null +++ b/arch/i386/kernel/timers/timer_none.c | |||
@@ -0,0 +1,39 @@ | |||
1 | #include <linux/init.h> | ||
2 | #include <asm/timer.h> | ||
3 | |||
4 | static void mark_offset_none(void) | ||
5 | { | ||
6 | /* nothing needed */ | ||
7 | } | ||
8 | |||
9 | static unsigned long get_offset_none(void) | ||
10 | { | ||
11 | return 0; | ||
12 | } | ||
13 | |||
14 | static unsigned long long monotonic_clock_none(void) | ||
15 | { | ||
16 | return 0; | ||
17 | } | ||
18 | |||
19 | static void delay_none(unsigned long loops) | ||
20 | { | ||
21 | int d0; | ||
22 | __asm__ __volatile__( | ||
23 | "\tjmp 1f\n" | ||
24 | ".align 16\n" | ||
25 | "1:\tjmp 2f\n" | ||
26 | ".align 16\n" | ||
27 | "2:\tdecl %0\n\tjns 2b" | ||
28 | :"=&a" (d0) | ||
29 | :"0" (loops)); | ||
30 | } | ||
31 | |||
32 | /* none timer_opts struct */ | ||
33 | struct timer_opts timer_none = { | ||
34 | .name = "none", | ||
35 | .mark_offset = mark_offset_none, | ||
36 | .get_offset = get_offset_none, | ||
37 | .monotonic_clock = monotonic_clock_none, | ||
38 | .delay = delay_none, | ||
39 | }; | ||