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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
cf5adce1 DM |
2 | /* NG2copy_from_user.S: Niagara-2 optimized copy from userspace. |
3 | * | |
4 | * Copyright (C) 2007 David S. Miller (davem@davemloft.net) | |
5 | */ | |
6 | ||
e93704e4 | 7 | #define EX_LD(x,y) \ |
cf5adce1 | 8 | 98: x; \ |
cf5adce1 DM |
9 | .section __ex_table,"a";\ |
10 | .align 4; \ | |
e93704e4 | 11 | .word 98b, y; \ |
cf5adce1 DM |
12 | .text; \ |
13 | .align 4; | |
14 | ||
e93704e4 | 15 | #define EX_LD_FP(x,y) \ |
a7c5724b RG |
16 | 98: x; \ |
17 | .section __ex_table,"a";\ | |
18 | .align 4; \ | |
e93704e4 | 19 | .word 98b, y##_fp; \ |
a7c5724b RG |
20 | .text; \ |
21 | .align 4; | |
22 | ||
cf5adce1 DM |
23 | #ifndef ASI_AIUS |
24 | #define ASI_AIUS 0x11 | |
25 | #endif | |
26 | ||
27 | #ifndef ASI_BLK_AIUS_4V | |
28 | #define ASI_BLK_AIUS_4V 0x17 | |
29 | #endif | |
30 | ||
31 | #define FUNC_NAME NG2copy_from_user | |
32 | #define LOAD(type,addr,dest) type##a [addr] %asi, dest | |
33 | #define LOAD_BLK(addr,dest) ldda [addr] ASI_BLK_AIUS_4V, dest | |
34 | #define EX_RETVAL(x) 0 | |
35 | ||
36 | #ifdef __KERNEL__ | |
37 | #define PREAMBLE \ | |
38 | rd %asi, %g1; \ | |
39 | cmp %g1, ASI_AIUS; \ | |
31af2f36 | 40 | bne,pn %icc, raw_copy_in_user; \ |
cf5adce1 DM |
41 | nop |
42 | #endif | |
43 | ||
44 | #include "NG2memcpy.S" |