[linux.git] / arch / sparc / lib / NG4copy_from_user.S

/* SPDX-License-Identifier: GPL-2.0 */
/* NG4copy_from_user.S: Niagara-4 optimized copy from userspace.
 *
 * Copyright (C) 2012 David S. Miller ([email protected])
 */

#define EX_LD(x, y)		\
98:	x;			\
	.section __ex_table,"a";\
	.align 4;		\
	.word 98b, y;		\
	.text;			\
	.align 4;

#define EX_LD_FP(x,y)		\
98:	x;			\
	.section __ex_table,"a";\
	.align 4;		\
	.word 98b, y##_fp;	\
	.text;			\
	.align 4;

#ifndef ASI_AIUS
#define ASI_AIUS	0x11
#endif

#define FUNC_NAME		NG4copy_from_user
#define LOAD(type,addr,dest)	type##a [addr] %asi, dest
#define EX_RETVAL(x)		0

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

#include "NG4memcpy.S"
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
90192057	2	/* NG4copy_from_user.S: Niagara-4 optimized copy from userspace.
ae2c6ca6 DM	3	*
	4	* Copyright (C) 2012 David S. Miller ([email protected])
	5	*/
	6
95707704	7	#define EX_LD(x, y) \
ae2c6ca6 DM	8	98: x; \
	9	.section __ex_table,"a";\
	10	.align 4; \
95707704	11	.word 98b, y; \
ae2c6ca6 DM	12	.text; \
	13	.align 4;
	14
95707704	15	#define EX_LD_FP(x,y) \
a7c5724b RG	16	98: x; \
	17	.section __ex_table,"a";\
	18	.align 4; \
95707704	19	.word 98b, y##_fp; \
a7c5724b RG	20	.text; \
	21	.align 4;
	22
ae2c6ca6 DM	23	#ifndef ASI_AIUS
	24	#define ASI_AIUS 0x11
	25	#endif
	26
	27	#define FUNC_NAME NG4copy_from_user
	28	#define LOAD(type,addr,dest) type##a [addr] %asi, dest
	29	#define EX_RETVAL(x) 0
	30
	31	#ifdef __KERNEL__
	32	#define PREAMBLE \
	33	rd %asi, %g1; \
	34	cmp %g1, ASI_AIUS; \
31af2f36	35	bne,pn %icc, raw_copy_in_user; \
ae2c6ca6 DM	36	nop
	37	#endif
	38
	39	#include "NG4memcpy.S"