1/* NG4copy_from_user.S: Niagara-4 optimized copy from userspace. 2 * 3 * Copyright (C) 2012 David S. Miller (davem@davemloft.net) 4 */ 5 6#define EX_LD(x, y) \ 798: x; \ 8 .section __ex_table,"a";\ 9 .align 4; \ 10 .word 98b, y; \ 11 .text; \ 12 .align 4; 13 14#define EX_LD_FP(x,y) \ 1598: x; \ 16 .section __ex_table,"a";\ 17 .align 4; \ 18 .word 98b, y##_fp; \ 19 .text; \ 20 .align 4; 21 22#ifndef ASI_AIUS 23#define ASI_AIUS 0x11 24#endif 25 26#define FUNC_NAME NG4copy_from_user 27#define LOAD(type,addr,dest) type##a [addr] %asi, dest 28#define EX_RETVAL(x) 0 29 30#ifdef __KERNEL__ 31#define PREAMBLE \ 32 rd %asi, %g1; \ 33 cmp %g1, ASI_AIUS; \ 34 bne,pn %icc, ___copy_in_user; \ 35 nop 36#endif 37 38#include "NG4memcpy.S" 39