1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* GENcopy_from_user.S: Generic sparc64 copy f 2 /* GENcopy_from_user.S: Generic sparc64 copy from userspace.
3 * 3 *
4 * Copyright (C) 2007 David S. Miller (davem@d 4 * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
5 */ 5 */
6 6
7 #define EX_LD(x,y) \ 7 #define EX_LD(x,y) \
8 98: x; \ 8 98: x; \
9 .section __ex_table,"a";\ 9 .section __ex_table,"a";\
10 .align 4; \ 10 .align 4; \
11 .word 98b, y; \ 11 .word 98b, y; \
12 .text; \ 12 .text; \
13 .align 4; 13 .align 4;
14 14
15 #ifndef ASI_AIUS 15 #ifndef ASI_AIUS
16 #define ASI_AIUS 0x11 16 #define ASI_AIUS 0x11
17 #endif 17 #endif
18 18
19 #define FUNC_NAME GENcopy_from_u 19 #define FUNC_NAME GENcopy_from_user
20 #define LOAD(type,addr,dest) type##a [addr] 20 #define LOAD(type,addr,dest) type##a [addr] ASI_AIUS, dest
21 #define EX_RETVAL(x) 0 21 #define EX_RETVAL(x) 0
22 22
23 #ifdef __KERNEL__ 23 #ifdef __KERNEL__
24 #define PREAMBLE 24 #define PREAMBLE \
25 rd %asi, %g1; 25 rd %asi, %g1; \
26 cmp %g1, ASI_AIUS; 26 cmp %g1, ASI_AIUS; \
27 bne,pn %icc, raw_copy_in_user 27 bne,pn %icc, raw_copy_in_user; \
28 nop 28 nop
29 #endif 29 #endif
30 30
31 #include "GENmemcpy.S" 31 #include "GENmemcpy.S"
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