Root/arch/sparc/lib/GENcopy_from_user.S

1/* GENcopy_from_user.S: Generic sparc64 copy from userspace.
2 *
3 * Copyright (C) 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, __retl_one; \
11    .text; \
12    .align 4;
13
14#ifndef ASI_AIUS
15#define ASI_AIUS 0x11
16#endif
17
18#define FUNC_NAME GENcopy_from_user
19#define LOAD(type,addr,dest) type##a [addr] ASI_AIUS, dest
20#define EX_RETVAL(x) 0
21
22#ifdef __KERNEL__
23#define PREAMBLE \
24    rd %asi, %g1; \
25    cmp %g1, ASI_AIUS; \
26    bne,pn %icc, ___copy_in_user; \
27     nop
28#endif
29
30#include "GENmemcpy.S"
31

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