1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* NGcopy_from_user.S: Niagara optimized copy
3 *
4 * Copyright (C) 2006, 2007 David S. Miller (d
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 #ifndef ASI_AIUS
16 #define ASI_AIUS 0x11
17 #endif
18
19 #define FUNC_NAME NGcopy_from_us
20 #define LOAD(type,addr,dest) type##a [addr]
21 #define LOAD_TWIN(addr_reg,dest0,dest1) \
22 ldda [addr_reg] ASI_BLK_INIT_QUAD_LDD_
23 #define EX_RETVAL(x) %g0
24
25 #ifdef __KERNEL__
26 #define PREAMBLE
27 rd %asi, %g1;
28 cmp %g1, ASI_AIUS;
29 bne,pn %icc, raw_copy_in_user
30 nop
31 #endif
32
33 #include "NGmemcpy.S"
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