1/* SPDX-License-Identifier: GPL-2.0 */
2/* GENcopy_to_user.S: Generic sparc64 copy to userspace.
3 *
4 * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
5 */
6
7#define EX_ST(x,y)		\
898:	x;			\
9	.section __ex_table,"a";\
10	.align 4;		\
11	.word 98b, y;		\
12	.text;			\
13	.align 4;
14
15#ifndef ASI_AIUS
16#define ASI_AIUS	0x11
17#endif
18
19#define FUNC_NAME		GENcopy_to_user
20#define STORE(type,src,addr)	type##a src, [addr] ASI_AIUS
21#define EX_RETVAL(x)		0
22
23#ifdef __KERNEL__
24	/* Writing to %asi is _expensive_ so we hardcode it.
25	 * Reading %asi to check for KERNEL_DS is comparatively
26	 * cheap.
27	 */
28#define PREAMBLE					\
29	rd		%asi, %g1;			\
30	cmp		%g1, ASI_AIUS;			\
31	bne,pn		%icc, raw_copy_in_user;		\
32	 nop
33#endif
34
35#include "GENmemcpy.S"
36