]>
Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
398d1083 DM |
2 | /* NGcopy_from_user.S: Niagara optimized copy from userspace. |
3 | * | |
25e5566e | 4 | * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net) |
398d1083 DM |
5 | */ |
6 | ||
7ae3aaf5 | 7 | #define EX_LD(x,y) \ |
398d1083 | 8 | 98: x; \ |
398d1083 DM |
9 | .section __ex_table,"a";\ |
10 | .align 4; \ | |
7ae3aaf5 | 11 | .word 98b, y; \ |
398d1083 DM |
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 | |
25e5566e | 23 | #define EX_RETVAL(x) %g0 |
398d1083 DM |
24 | |
25 | #ifdef __KERNEL__ | |
26 | #define PREAMBLE \ | |
27 | rd %asi, %g1; \ | |
28 | cmp %g1, ASI_AIUS; \ | |
31af2f36 | 29 | bne,pn %icc, raw_copy_in_user; \ |
398d1083 DM |
30 | nop |
31 | #endif | |
32 | ||
33 | #include "NGmemcpy.S" |