From 0402c91af944c61bf788370f03326959a35cb8be Mon Sep 17 00:00:00 2001 From: Chen Liqin Date: Fri, 19 Jun 2009 13:53:49 +0800 Subject: score: update files according to review comments modified: arch/score/include/asm/cacheflush.h modified: arch/score/include/asm/delay.h modified: arch/score/include/asm/errno.h modified: arch/score/include/asm/pgtable-bits.h modified: arch/score/include/asm/pgtable.h modified: arch/score/include/asm/ptrace.h modified: arch/score/include/asm/unistd.h modified: arch/score/kernel/entry.S modified: arch/score/kernel/process.c modified: arch/score/kernel/ptrace.c modified: arch/score/kernel/signal.c modified: arch/score/kernel/sys_score.c modified: arch/score/kernel/traps.c modified: arch/score/mm/cache.c Signed-off-by: Chen Liqin Signed-off-by: Arnd Bergmann --- arch/score/include/asm/delay.h | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'arch/score/include/asm/delay.h') diff --git a/arch/score/include/asm/delay.h b/arch/score/include/asm/delay.h index ad716f6..6726ec1 100644 --- a/arch/score/include/asm/delay.h +++ b/arch/score/include/asm/delay.h @@ -3,17 +3,22 @@ static inline void __delay(unsigned long loops) { + /* 3 cycles per loop. */ __asm__ __volatile__ ( - "1:\tsubi\t%0,1\n\t" + "1:\tsubi\t%0, 3\n\t" "cmpz.c\t%0\n\t" - "bne\t1b\n\t" + "ble\t1b\n\t" : "=r" (loops) : "0" (loops)); } static inline void __udelay(unsigned long usecs) { - __delay(usecs); + unsigned long loops_per_usec; + + loops_per_usec = (loops_per_jiffy * HZ) / 1000000; + + __delay(usecs * loops_per_usec); } #define udelay(usecs) __udelay(usecs) -- cgit v1.1