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authorDavid S. Miller <davem@davemloft.net>2005-07-24 22:36:13 -0400
committerDavid S. Miller <davem@davemloft.net>2005-07-24 22:36:13 -0400
commitcdd5186f753b23ab51f86679bdc4cc698ab0b893 (patch)
tree9de741421a4303d936687784d5a703641962c5d7 /include/asm-sparc64/timer.h
parentc5019a578f18cf3a76829626e91e5469dbd4a738 (diff)
[SPARC64]: Privatize sun5_timer.
It is only used by some localized code in irq.c, and also delete enable_prom_timer() as that is totally unused. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64/timer.h')
-rw-r--r--include/asm-sparc64/timer.h41
1 files changed, 0 insertions, 41 deletions
diff --git a/include/asm-sparc64/timer.h b/include/asm-sparc64/timer.h
index ba33a2b6b7bd..edc8e08c3a39 100644
--- a/include/asm-sparc64/timer.h
+++ b/include/asm-sparc64/timer.h
@@ -9,49 +9,8 @@
9 9
10#include <linux/types.h> 10#include <linux/types.h>
11 11
12/* How timers work:
13 *
14 * On uniprocessors we just use counter zero for the system wide
15 * ticker, this performs thread scheduling, clock book keeping,
16 * and runs timer based events. Previously we used the Ultra
17 * %tick interrupt for this purpose.
18 *
19 * On multiprocessors we pick one cpu as the master level 10 tick
20 * processor. Here this counter zero tick handles clock book
21 * keeping and timer events only. Each Ultra has it's level
22 * 14 %tick interrupt set to fire off as well, even the master
23 * tick cpu runs this locally. This ticker performs thread
24 * scheduling, system/user tick counting for the current thread,
25 * and also profiling if enabled.
26 */
27
28#include <linux/config.h> 12#include <linux/config.h>
29 13
30/* Two timers, traditionally steered to PIL's 10 and 14 respectively.
31 * But since INO packets are used on sun5, we could use any PIL level
32 * we like, however for now we use the normal ones.
33 *
34 * The 'reg' and 'interrupts' properties for these live in nodes named
35 * 'counter-timer'. The first of three 'reg' properties describe where
36 * the sun5_timer registers are. The other two I have no idea. (XXX)
37 */
38struct sun5_timer {
39 u64 count0;
40 u64 limit0;
41 u64 count1;
42 u64 limit1;
43};
44
45#define SUN5_LIMIT_ENABLE 0x80000000
46#define SUN5_LIMIT_TOZERO 0x40000000
47#define SUN5_LIMIT_ZRESTART 0x20000000
48#define SUN5_LIMIT_CMASK 0x1fffffff
49
50/* Given a HZ value, set the limit register to so that the timer IRQ
51 * gets delivered that often.
52 */
53#define SUN5_HZ_TO_LIMIT(__hz) (1000000/(__hz))
54
55struct sparc64_tick_ops { 14struct sparc64_tick_ops {
56 void (*init_tick)(unsigned long); 15 void (*init_tick)(unsigned long);
57 unsigned long (*get_tick)(void); 16 unsigned long (*get_tick)(void);