1/* NG2copy_from_user.S: Niagara-2 optimized copy from userspace. 2 * 3 * Copyright (C) 2007 David S. Miller (davem@davemloft.net) 4 */ 5 6#define EX_LD(x) \ 798: x; \ 8 .section __ex_table,"a";\ 9 .align 4; \ 10 .word 98b, __retl_one_asi;\ 11 .text; \ 12 .align 4; 13 14#ifndef ASI_AIUS 15#define ASI_AIUS 0x11 16#endif 17 18#ifndef ASI_BLK_AIUS_4V 19#define ASI_BLK_AIUS_4V 0x17 20#endif 21 22#define FUNC_NAME NG2copy_from_user 23#define LOAD(type,addr,dest) type##a [addr] %asi, dest 24#define LOAD_BLK(addr,dest) ldda [addr] ASI_BLK_AIUS_4V, dest 25#define EX_RETVAL(x) 0 26 27#ifdef __KERNEL__ 28#define PREAMBLE \ 29 rd %asi, %g1; \ 30 cmp %g1, ASI_AIUS; \ 31 bne,pn %icc, ___copy_in_user; \ 32 nop 33#endif 34 35#include "NG2memcpy.S" 36