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Commit 3927f2e8 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller
Browse files

[NET]: div64_64 consolidate (rev3) 



Here is the current version of the 64 bit divide common code.

Signed-off-by: default avatarStephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9d729f72

include/asm-arm/div64.h

+3 −0
Original line number Diff line number Diff line
@@ -2,6 +2,7 @@ 
#define __ASM_ARM_DIV64



#include <asm/system.h>

#include <linux/types.h>



/*

 * The semantics of do_div() are:
@@ -223,4 +224,6 @@ 


#endif



extern uint64_t div64_64(uint64_t dividend, uint64_t divisor);



#endif

include/asm-generic/div64.h

+7 −0
Original line number Diff line number Diff line
@@ -30,6 +30,11 @@ 
	__rem;							\

 })



static inline uint64_t div64_64(uint64_t dividend, uint64_t divisor)

{

	return dividend / divisor;

}



#elif BITS_PER_LONG == 32



extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
@@ -49,6 +54,8 @@ extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor); 
	__rem;						\

 })



extern uint64_t div64_64(uint64_t dividend, uint64_t divisor);



#else /* BITS_PER_LONG == ?? */



# error do_div() does not yet support the C64

include/asm-i386/div64.h

+4 −0
Original line number Diff line number Diff line 
#ifndef __I386_DIV64

#define __I386_DIV64



#include <linux/types.h>



/*

 * do_div() is NOT a C function. It wants to return

 * two values (the quotient and the remainder), but
@@ -45,4 +47,6 @@ div_ll_X_l_rem(long long divs, long div, long *rem) 
	return dum2;



}



extern uint64_t div64_64(uint64_t dividend, uint64_t divisor);

#endif

include/asm-m68k/div64.h

+3 −0
Original line number Diff line number Diff line 
#ifndef _M68K_DIV64_H

#define _M68K_DIV64_H



#include <linux/types.h>



/* n = n / base; return rem; */



#define do_div(n, base) ({					\
@@ -23,4 +25,5 @@ 
	__rem;							\

})



extern uint64_t div64_64(uint64_t dividend, uint64_t divisor);

#endif /* _M68K_DIV64_H */

include/asm-mips/div64.h

+10 −1
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2000, 2004  Maciej W. Rozycki

 * Copyright (C) 2003 Ralf Baechle

 * Copyright (C) 2003, 07 Ralf Baechle (ralf@linux-mips.org)

 *

 * This file is subject to the terms and conditions of the GNU General Public

 * License.  See the file "COPYING" in the main directory of this archive
@@ -9,6 +9,8 @@ 
#ifndef _ASM_DIV64_H

#define _ASM_DIV64_H



#include <linux/types.h>



#if (_MIPS_SZLONG == 32)



#include <asm/compiler.h>
@@ -78,6 +80,8 @@ 
	__quot = __quot << 32 | __low; \

	(n) = __quot; \

	__mod; })



extern uint64_t div64_64(uint64_t dividend, uint64_t divisor);

#endif /* (_MIPS_SZLONG == 32) */



#if (_MIPS_SZLONG == 64)
@@ -101,6 +105,11 @@ 
	(n) = __quot; \

	__mod; })



static inline uint64_t div64_64(uint64_t dividend, uint64_t divisor)

{

	return dividend / divisor;

}



#endif /* (_MIPS_SZLONG == 64) */



#endif /* _ASM_DIV64_H */