1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* NGcopy_from_user.S: Niagara optimized copy from userspace. |
3 | * |
4 | * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net) |
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_user |
20 | #define LOAD(type,addr,dest) type##a [addr] ASI_AIUS, dest |
21 | #define LOAD_TWIN(addr_reg,dest0,dest1) \ |
22 | ldda [addr_reg] ASI_BLK_INIT_QUAD_LDD_AIUS, dest0 |
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" |
34 | |