1/* NGcopy_from_user.S: Niagara optimized copy from userspace. 2 * 3 * Copyright (C) 2006, 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, __ret_one_asi;\ 11 .text; \ 12 .align 4; 13 14#ifndef ASI_AIUS 15#define ASI_AIUS 0x11 16#endif 17 18#define FUNC_NAME NGcopy_from_user 19#define LOAD(type,addr,dest) type##a [addr] ASI_AIUS, dest 20#define LOAD_TWIN(addr_reg,dest0,dest1) \ 21 ldda [addr_reg] ASI_BLK_INIT_QUAD_LDD_AIUS, dest0 22#define EX_RETVAL(x) %g0 23 24#ifdef __KERNEL__ 25#define PREAMBLE \ 26 rd %asi, %g1; \ 27 cmp %g1, ASI_AIUS; \ 28 bne,pn %icc, ___copy_in_user; \ 29 nop 30#endif 31 32#include "NGmemcpy.S" 33