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asm-generic: move archictures to common delay.h
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This patch moves the in-tree architectures that were using the 'generic'
delay.h over to using the header file in asm-generic.

This is not done using the generic-y mechanism as none of these arch's
have started using that mechanism yet.  This is a trivial change to make
later when the arch begins using generic-y.

Note the subtle change to the avr32 and SH architectures where the argument
to __const_udelay was previously using the rounded down constant value
instead of the rounded up value.

Signed-off-by: Jonas Bonn <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Acked-by: Hans-Christian Egtvedt <[email protected]>
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Jonas Bonn committed Jul 22, 2011
1 parent a87e553 commit a4e0527
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Showing 4 changed files with 4 additions and 102 deletions.
27 changes: 1 addition & 26 deletions arch/avr32/include/asm/delay.h
Original file line number Diff line number Diff line change
@@ -1,26 +1 @@
#ifndef __ASM_AVR32_DELAY_H
#define __ASM_AVR32_DELAY_H

/*
* Copyright (C) 1993 Linus Torvalds
*
* Delay routines calling functions in arch/avr32/lib/delay.c
*/

extern void __bad_udelay(void);
extern void __bad_ndelay(void);

extern void __udelay(unsigned long usecs);
extern void __ndelay(unsigned long nsecs);
extern void __const_udelay(unsigned long xloops);
extern void __delay(unsigned long loops);

#define udelay(n) (__builtin_constant_p(n) ? \
((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \
__udelay(n))

#define ndelay(n) (__builtin_constant_p(n) ? \
((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
__ndelay(n))

#endif /* __ASM_AVR32_DELAY_H */
#include <asm-generic/delay.h>
27 changes: 1 addition & 26 deletions arch/m32r/include/asm/delay.h
Original file line number Diff line number Diff line change
@@ -1,26 +1 @@
#ifndef _ASM_M32R_DELAY_H
#define _ASM_M32R_DELAY_H

/*
* Copyright (C) 1993 Linus Torvalds
*
* Delay routines calling functions in arch/m32r/lib/delay.c
*/

extern void __bad_udelay(void);
extern void __bad_ndelay(void);

extern void __udelay(unsigned long usecs);
extern void __ndelay(unsigned long nsecs);
extern void __const_udelay(unsigned long xloops);
extern void __delay(unsigned long loops);

#define udelay(n) (__builtin_constant_p(n) ? \
((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c7ul)) : \
__udelay(n))

#define ndelay(n) (__builtin_constant_p(n) ? \
((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
__ndelay(n))

#endif /* _ASM_M32R_DELAY_H */
#include <asm-generic/delay.h>
27 changes: 1 addition & 26 deletions arch/sh/include/asm/delay.h
Original file line number Diff line number Diff line change
@@ -1,26 +1 @@
#ifndef __ASM_SH_DELAY_H
#define __ASM_SH_DELAY_H

/*
* Copyright (C) 1993 Linus Torvalds
*
* Delay routines calling functions in arch/sh/lib/delay.c
*/

extern void __bad_udelay(void);
extern void __bad_ndelay(void);

extern void __udelay(unsigned long usecs);
extern void __ndelay(unsigned long nsecs);
extern void __const_udelay(unsigned long xloops);
extern void __delay(unsigned long loops);

#define udelay(n) (__builtin_constant_p(n) ? \
((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \
__udelay(n))

#define ndelay(n) (__builtin_constant_p(n) ? \
((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
__ndelay(n))

#endif /* __ASM_SH_DELAY_H */
#include <asm-generic/delay.h>
25 changes: 1 addition & 24 deletions arch/x86/include/asm/delay.h
Original file line number Diff line number Diff line change
@@ -1,30 +1,7 @@
#ifndef _ASM_X86_DELAY_H
#define _ASM_X86_DELAY_H

/*
* Copyright (C) 1993 Linus Torvalds
*
* Delay routines calling functions in arch/x86/lib/delay.c
*/

/* Undefined functions to get compile-time errors */
extern void __bad_udelay(void);
extern void __bad_ndelay(void);

extern void __udelay(unsigned long usecs);
extern void __ndelay(unsigned long nsecs);
extern void __const_udelay(unsigned long xloops);
extern void __delay(unsigned long loops);

/* 0x10c7 is 2**32 / 1000000 (rounded up) */
#define udelay(n) (__builtin_constant_p(n) ? \
((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c7ul)) : \
__udelay(n))

/* 0x5 is 2**32 / 1000000000 (rounded up) */
#define ndelay(n) (__builtin_constant_p(n) ? \
((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
__ndelay(n))
#include <asm-generic/delay.h>

void use_tsc_delay(void);

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