1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/*
* M7copy_from_user.S: SPARC M7 optimized copy from userspace.
*
* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
*/
#define EX_LD(x, y) \
98: x; \
.section __ex_table,"a"; \
.align 4; \
.word 98b, y; \
.text; \
.align 4;
#define EX_LD_FP(x, y) \
98: x; \
.section __ex_table,"a"; \
.align 4; \
.word 98b, y##_fp; \
.text; \
.align 4;
#ifndef ASI_AIUS
#define ASI_AIUS 0x11
#endif
#define FUNC_NAME M7copy_from_user
#define LOAD(type,addr,dest) type##a [addr] %asi, dest
#define EX_RETVAL(x) 0
#ifdef __KERNEL__
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, raw_copy_in_user; \
nop
#endif
#include "M7memcpy.S"
|
