1/* SPDX-License-Identifier: GPL-2.0 */ 2/* NG2copy_from_user.S: Niagara-2 optimized copy from userspace. 3 * 4 * Copyright (C) 2007 David S. Miller (davem@davemloft.net) 5 */ 6 7#define EX_LD(x,y) \ 898: x; \ 9 .section __ex_table,"a";\ 10 .align 4; \ 11 .word 98b, y; \ 12 .text; \ 13 .align 4; 14 15#define EX_LD_FP(x,y) \ 1698: x; \ 17 .section __ex_table,"a";\ 18 .align 4; \ 19 .word 98b, y##_fp; \ 20 .text; \ 21 .align 4; 22 23#ifndef ASI_AIUS 24#define ASI_AIUS 0x11 25#endif 26 27#ifndef ASI_BLK_AIUS_4V 28#define ASI_BLK_AIUS_4V 0x17 29#endif 30 31#define FUNC_NAME NG2copy_from_user 32#define LOAD(type,addr,dest) type##a [addr] %asi, dest 33#define LOAD_BLK(addr,dest) ldda [addr] ASI_BLK_AIUS_4V, dest 34#define EX_RETVAL(x) 0 35 36#ifdef __KERNEL__ 37#define PREAMBLE \ 38 rd %asi, %g1; \ 39 cmp %g1, ASI_AIUS; \ 40 bne,pn %icc, raw_copy_in_user; \ 41 nop 42#endif 43 44#include "NG2memcpy.S" 45