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sh: Tidy up lib64 udelay impl. 

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2007-11-20 14:49:36 +09:00
parent 600ee240d1
commit 99432700cf
2 changed files with 8 additions and 7 deletions
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7
arch/sh/lib64/udelay.c
View File

@ -13,8 +13,6 @@
#include <linux/sched.h> #include <linux/sched.h>
#include <asm/param.h> #include <asm/param.h>
extern unsigned long loops_per_jiffy;
/* /*
* Use only for very small delays (< 1 msec). * Use only for very small delays (< 1 msec).
* *
@ -49,11 +47,10 @@ void __ndelay(unsigned long long nsecs, unsigned long lpj)
void udelay(unsigned long usecs) void udelay(unsigned long usecs)
{ {
__udelay(usecs, loops_per_jiffy); __udelay(usecs, cpu_data[raw_smp_processor_id()].loops_per_jiffy);
} }
void ndelay(unsigned long nsecs) void ndelay(unsigned long nsecs)
{ {
__ndelay(nsecs, loops_per_jiffy); __ndelay(nsecs, cpu_data[raw_smp_processor_id()].loops_per_jiffy);
} }

8
include/asm-sh/delay.h
View File

@ -6,7 +6,7 @@
* *
* Delay routines calling functions in arch/sh/lib/delay.c * Delay routines calling functions in arch/sh/lib/delay.c
*/ */
extern void __bad_udelay(void); extern void __bad_udelay(void);
extern void __bad_ndelay(void); extern void __bad_ndelay(void);
@ -15,13 +15,17 @@ extern void __ndelay(unsigned long nsecs);
extern void __const_udelay(unsigned long usecs); extern void __const_udelay(unsigned long usecs);
extern void __delay(unsigned long loops); extern void __delay(unsigned long loops);
#ifdef CONFIG_SUPERH32
#define udelay(n) (__builtin_constant_p(n) ? \ #define udelay(n) (__builtin_constant_p(n) ? \
((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \ ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \
__udelay(n)) __udelay(n))
#define ndelay(n) (__builtin_constant_p(n) ? \ #define ndelay(n) (__builtin_constant_p(n) ? \
((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \ ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
__ndelay(n)) __ndelay(n))
#else
extern void udelay(unsigned long usecs);
extern void ndelay(unsigned long nsecs);
#endif
#endif /* __ASM_SH_DELAY_H */ #endif /* __ASM_SH_DELAY_H */