/* SPDX-License-Identifier: GPL-2.0 */
/* U1copy_from_user.S: UltraSparc-I/II/IIi/IIe optimized copy from userspace.
 *
 * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
 */

#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;           \
        .text;                  \
        .align 4;

#define FUNC_NAME               raw_copy_from_user
#define LOAD(type,addr,dest)    type##a [addr] %asi, dest
#define LOAD_BLK(addr,dest)     ldda [addr] ASI_BLK_AIUS, dest
#define EX_RETVAL(x)            0

        /* Writing to %asi is _expensive_ so we hardcode it.
         * Reading %asi to check for KERNEL_DS is comparatively
         * cheap.
         */
#define PREAMBLE                                        \
        rd              %asi, %g1;                      \
        cmp             %g1, ASI_AIUS;                  \
        bne,pn          %icc, raw_copy_in_user;         \
         nop;                                           \

#include "U1memcpy.S"