1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* U1copy_from_user.S: UltraSparc-I/II/IIi/IIe
3 *
4 * Copyright (C) 1999, 2000, 2004 David S. Mil
5 */
6
7 #define EX_LD(x,y) \
8 98: x; \
9 .section __ex_table,"a";\
10 .align 4; \
11 .word 98b, y; \
12 .text; \
13 .align 4;
14
15 #define EX_LD_FP(x,y) \
16 98: x; \
17 .section __ex_table,"a";\
18 .align 4; \
19 .word 98b, y; \
20 .text; \
21 .align 4;
22
23 #define FUNC_NAME raw_copy_from_
24 #define LOAD(type,addr,dest) type##a [addr]
25 #define LOAD_BLK(addr,dest) ldda [addr] AS
26 #define EX_RETVAL(x) 0
27
28 /* Writing to %asi is _expensive_ so w
29 * Reading %asi to check for KERNEL_DS
30 * cheap.
31 */
32 #define PREAMBLE
33 rd %asi, %g1;
34 cmp %g1, ASI_AIUS;
35 bne,pn %icc, raw_copy_in_user
36 nop;
37
38 #include "U1memcpy.S"
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