root/arch/sparc/lib/M7copy_from_user.S
/*
 * M7copy_from_user.S: SPARC M7 optimized copy from userspace.
 *
 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
 */


#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               M7copy_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 "M7memcpy.S"