diff options
Diffstat (limited to 'arch/sparc64/lib/delay.c')
-rw-r--r-- | arch/sparc64/lib/delay.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/arch/sparc64/lib/delay.c b/arch/sparc64/lib/delay.c index e8808727617a..fb27e54a03ee 100644 --- a/arch/sparc64/lib/delay.c +++ b/arch/sparc64/lib/delay.c | |||
@@ -1,6 +1,6 @@ | |||
1 | /* delay.c: Delay loops for sparc64 | 1 | /* delay.c: Delay loops for sparc64 |
2 | * | 2 | * |
3 | * Copyright (C) 2004 David S. Miller <davem@redhat.com> | 3 | * Copyright (C) 2004, 2006 David S. Miller <davem@davemloft.net> |
4 | * | 4 | * |
5 | * Based heavily upon x86 variant which is: | 5 | * Based heavily upon x86 variant which is: |
6 | * Copyright (C) 1993 Linus Torvalds | 6 | * Copyright (C) 1993 Linus Torvalds |
@@ -8,19 +8,16 @@ | |||
8 | */ | 8 | */ |
9 | 9 | ||
10 | #include <linux/delay.h> | 10 | #include <linux/delay.h> |
11 | #include <asm/timer.h> | ||
11 | 12 | ||
12 | void __delay(unsigned long loops) | 13 | void __delay(unsigned long loops) |
13 | { | 14 | { |
14 | __asm__ __volatile__( | 15 | unsigned long bclock, now; |
15 | " b,pt %%xcc, 1f\n" | 16 | |
16 | " cmp %0, 0\n" | 17 | bclock = tick_ops->get_tick(); |
17 | " .align 32\n" | 18 | do { |
18 | "1:\n" | 19 | now = tick_ops->get_tick(); |
19 | " bne,pt %%xcc, 1b\n" | 20 | } while ((now-bclock) < loops); |
20 | " subcc %0, 1, %0\n" | ||
21 | : "=&r" (loops) | ||
22 | : "0" (loops) | ||
23 | : "cc"); | ||
24 | } | 21 | } |
25 | 22 | ||
26 | /* We used to multiply by HZ after shifting down by 32 bits | 23 | /* We used to multiply by HZ after shifting down by 32 bits |