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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/*
* arch/ppc/kernel/ppc_asm.h
*
* Definitions used by various bits of low-level assembly code on PowerPC.
*
* Copyright (C) 1995-1999 Gary Thomas, Paul Mackerras, Cort Dougan.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/config.h>
#include "ppc_asm.tmpl"
#include "ppc_defs.h"
/*
* Macros for storing registers into and loading registers from
* exception frames.
*/
#define SAVE_GPR(n, base) stw n,GPR0+4*(n)(base)
#define SAVE_2GPRS(n, base) SAVE_GPR(n, base); SAVE_GPR(n+1, base)
#define SAVE_4GPRS(n, base) SAVE_2GPRS(n, base); SAVE_2GPRS(n+2, base)
#define SAVE_8GPRS(n, base) SAVE_4GPRS(n, base); SAVE_4GPRS(n+4, base)
#define SAVE_10GPRS(n, base) SAVE_8GPRS(n, base); SAVE_2GPRS(n+8, base)
#define REST_GPR(n, base) lwz n,GPR0+4*(n)(base)
#define REST_2GPRS(n, base) REST_GPR(n, base); REST_GPR(n+1, base)
#define REST_4GPRS(n, base) REST_2GPRS(n, base); REST_2GPRS(n+2, base)
#define REST_8GPRS(n, base) REST_4GPRS(n, base); REST_4GPRS(n+4, base)
#define REST_10GPRS(n, base) REST_8GPRS(n, base); REST_2GPRS(n+8, base)
#define SAVE_FPR(n, base) stfd n,THREAD_FPR0+8*(n)(base)
#define SAVE_2FPRS(n, base) SAVE_FPR(n, base); SAVE_FPR(n+1, base)
#define SAVE_4FPRS(n, base) SAVE_2FPRS(n, base); SAVE_2FPRS(n+2, base)
#define SAVE_8FPRS(n, base) SAVE_4FPRS(n, base); SAVE_4FPRS(n+4, base)
#define SAVE_16FPRS(n, base) SAVE_8FPRS(n, base); SAVE_8FPRS(n+8, base)
#define SAVE_32FPRS(n, base) SAVE_16FPRS(n, base); SAVE_16FPRS(n+16, base)
#define REST_FPR(n, base) lfd n,THREAD_FPR0+8*(n)(base)
#define REST_2FPRS(n, base) REST_FPR(n, base); REST_FPR(n+1, base)
#define REST_4FPRS(n, base) REST_2FPRS(n, base); REST_2FPRS(n+2, base)
#define REST_8FPRS(n, base) REST_4FPRS(n, base); REST_4FPRS(n+4, base)
#define REST_16FPRS(n, base) REST_8FPRS(n, base); REST_8FPRS(n+8, base)
#define REST_32FPRS(n, base) REST_16FPRS(n, base); REST_16FPRS(n+16, base)
/*
* Once a version of gas that understands the AltiVec instructions
* is freely available, we can do this the normal way... - paulus
*/
#define LVX(r,a,b) .long (31<<26)+((r)<<21)+((a)<<16)+((b)<<11)+(103<<1)
#define STVX(r,a,b) .long (31<<26)+((r)<<21)+((a)<<16)+((b)<<11)+(231<<1)
#define MFVSCR(r) .long (4<<26)+((r)<<21)+(1540<<1)
#define MTVSCR(r) .long (4<<26)+((r)<<11)+(802<<1)
#define SAVE_VR(n,b,base) li b,THREAD_VR0+(16*(n)); STVX(n,b,base)
#define SAVE_2VR(n,b,base) SAVE_VR(n,b,base); SAVE_VR(n+1,b,base)
#define SAVE_4VR(n,b,base) SAVE_2VR(n,b,base); SAVE_2VR(n+2,b,base)
#define SAVE_8VR(n,b,base) SAVE_4VR(n,b,base); SAVE_4VR(n+4,b,base)
#define SAVE_16VR(n,b,base) SAVE_8VR(n,b,base); SAVE_8VR(n+8,b,base)
#define SAVE_32VR(n,b,base) SAVE_16VR(n,b,base); SAVE_16VR(n+16,b,base)
#define REST_VR(n,b,base) li b,THREAD_VR0+(16*(n)); LVX(n,b,base)
#define REST_2VR(n,b,base) REST_VR(n,b,base); REST_VR(n+1,b,base)
#define REST_4VR(n,b,base) REST_2VR(n,b,base); REST_2VR(n+2,b,base)
#define REST_8VR(n,b,base) REST_4VR(n,b,base); REST_4VR(n+4,b,base)
#define REST_16VR(n,b,base) REST_8VR(n,b,base); REST_8VR(n+8,b,base)
#define REST_32VR(n,b,base) REST_16VR(n,b,base); REST_16VR(n+16,b,base)
#define SYNC \
sync; \
isync
/*
* This instruction is not implemented on the PPC 603 or 601; however, on
* the 403GCX and 405GP tlbia IS defined and tlbie is not.
*/
#if !defined(CONFIG_4xx)
#define tlbia \
li r4,128; \
mtctr r4; \
lis r4,KERNELBASE@h; \
0: tlbie r4; \
addi r4,r4,0x1000; \
bdnz 0b
#endif
/*
* On APUS (Amiga PowerPC cpu upgrade board), we don't know the
* physical base address of RAM at compile time.
*/
#define tophys(rd,rs) \
0: addis rd,rs,-KERNELBASE@h; \
.section ".vtop_fixup","aw"; \
.align 1; \
.long 0b; \
.previous
#define tovirt(rd,rs) \
0: addis rd,rs,KERNELBASE@h; \
.section ".ptov_fixup","aw"; \
.align 1; \
.long 0b; \
.previous
|
