root/arch/sparc/lib/NG4copy_from_user.S
/* SPDX-License-Identifier: GPL-2.0 */
/* NG4copy_from_user.S: Niagara-4 optimized copy from userspace.
 *
 * Copyright (C) 2012 David S. Miller (davem@davemloft.net)
 */

#define EX_LD(x, y)             \
98:     x;                      \
        .section __ex_table,"a";\
        .align 4;               \
        .word 98b, y;           \
        .text;                  \
        .align 4;

#define EX_LD_FP(x,y)           \
98:     x;                      \
        .section __ex_table,"a";\
        .align 4;               \
        .word 98b, y##_fp;      \
        .text;                  \
        .align 4;

#ifndef ASI_AIUS
#define ASI_AIUS        0x11
#endif

#define FUNC_NAME               NG4copy_from_user
#define LOAD(type,addr,dest)    type##a [addr] %asi, dest
#define EX_RETVAL(x)            0

#ifdef __KERNEL__
#define PREAMBLE                                        \
        rd              %asi, %g1;                      \
        cmp             %g1, ASI_AIUS;                  \
        bne,pn          %icc, raw_copy_in_user;         \
         nop
#endif

#include "NG4memcpy.S"