[deliverable/linux.git] / arch / sparc64 / lib / GENcopy_from_user.S

/* GENcopy_from_user.S: Generic sparc64 copy from userspace.
 *
 * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
 */

#define EX_LD(x)		\
98:	x;			\
	.section .fixup;	\
	.align 4;		\
99:	retl;			\
	 mov	1, %o0;		\
	.section __ex_table,"a";\
	.align 4;		\
	.word 98b, 99b;		\
	.text;			\
	.align 4;

#ifndef ASI_AIUS
#define ASI_AIUS	0x11
#endif

#define FUNC_NAME		GENcopy_from_user
#define LOAD(type,addr,dest)	type##a [addr] ASI_AIUS, dest
#define EX_RETVAL(x)		0

#ifdef __KERNEL__
#define PREAMBLE					\
	rd		%asi, %g1;			\
	cmp		%g1, ASI_AIUS;			\
	bne,pn		%icc, memcpy_user_stub;		\
	 nop
#endif

#include "GENmemcpy.S"
Commit	Line	Data
6c70b6fc DM	1	/* GENcopy_from_user.S: Generic sparc64 copy from userspace.
	2	*
	3	* Copyright (C) 2007 David S. Miller (davem@davemloft.net)
	4	*/
	5
	6	#define EX_LD(x) \
	7	98: x; \
	8	.section .fixup; \
	9	.align 4; \
	10	99: retl; \
	11	mov 1, %o0; \
	12	.section __ex_table,"a";\
	13	.align 4; \
	14	.word 98b, 99b; \
	15	.text; \
	16	.align 4;
	17
	18	#ifndef ASI_AIUS
	19	#define ASI_AIUS 0x11
	20	#endif
	21
	22	#define FUNC_NAME GENcopy_from_user
	23	#define LOAD(type,addr,dest) type##a [addr] ASI_AIUS, dest
	24	#define EX_RETVAL(x) 0
	25
	26	#ifdef __KERNEL__
	27	#define PREAMBLE \
	28	rd %asi, %g1; \
	29	cmp %g1, ASI_AIUS; \
	30	bne,pn %icc, memcpy_user_stub; \
	31	nop
	32	#endif
	33
	34	#include "GENmemcpy.S"