1*4882a593Smuzhiyun/* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun/* NG2copy_from_user.S: Niagara-2 optimized copy from userspace. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (C) 2007 David S. Miller (davem@davemloft.net) 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun#define EX_LD(x,y) \ 8*4882a593Smuzhiyun98: x; \ 9*4882a593Smuzhiyun .section __ex_table,"a";\ 10*4882a593Smuzhiyun .align 4; \ 11*4882a593Smuzhiyun .word 98b, y; \ 12*4882a593Smuzhiyun .text; \ 13*4882a593Smuzhiyun .align 4; 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun#define EX_LD_FP(x,y) \ 16*4882a593Smuzhiyun98: x; \ 17*4882a593Smuzhiyun .section __ex_table,"a";\ 18*4882a593Smuzhiyun .align 4; \ 19*4882a593Smuzhiyun .word 98b, y##_fp; \ 20*4882a593Smuzhiyun .text; \ 21*4882a593Smuzhiyun .align 4; 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun#ifndef ASI_AIUS 24*4882a593Smuzhiyun#define ASI_AIUS 0x11 25*4882a593Smuzhiyun#endif 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun#ifndef ASI_BLK_AIUS_4V 28*4882a593Smuzhiyun#define ASI_BLK_AIUS_4V 0x17 29*4882a593Smuzhiyun#endif 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun#define FUNC_NAME NG2copy_from_user 32*4882a593Smuzhiyun#define LOAD(type,addr,dest) type##a [addr] %asi, dest 33*4882a593Smuzhiyun#define LOAD_BLK(addr,dest) ldda [addr] ASI_BLK_AIUS_4V, dest 34*4882a593Smuzhiyun#define EX_RETVAL(x) 0 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun#ifdef __KERNEL__ 37*4882a593Smuzhiyun#define PREAMBLE \ 38*4882a593Smuzhiyun rd %asi, %g1; \ 39*4882a593Smuzhiyun cmp %g1, ASI_AIUS; \ 40*4882a593Smuzhiyun bne,pn %icc, raw_copy_in_user; \ 41*4882a593Smuzhiyun nop 42*4882a593Smuzhiyun#endif 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun#include "NG2memcpy.S" 45