tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2003 Ralf Baechle
7 */
8#ifndef _ASM_ASMMACRO_H
9#define _ASM_ASMMACRO_H
10
11#include <linux/config.h>
12#include <asm/hazards.h>
13
14#ifdef CONFIG_32BIT
15#include <asm/asmmacro-32.h>
16#endif
17#ifdef CONFIG_64BIT
18#include <asm/asmmacro-64.h>
19#endif
20#ifdef CONFIG_MIPS_MT_SMTC
21#include <asm/mipsmtregs.h>
22#endif
23
24#ifdef CONFIG_MIPS_MT_SMTC
25 .macro local_irq_enable reg=t0
26 mfc0 \reg, CP0_TCSTATUS
27 ori \reg, \reg, TCSTATUS_IXMT
28 xori \reg, \reg, TCSTATUS_IXMT
29 mtc0 \reg, CP0_TCSTATUS
30 ehb
31 .endm
32
33 .macro local_irq_disable reg=t0
34 mfc0 \reg, CP0_TCSTATUS
35 ori \reg, \reg, TCSTATUS_IXMT
36 mtc0 \reg, CP0_TCSTATUS
37 ehb
38 .endm
39#else
40 .macro local_irq_enable reg=t0
41 mfc0 \reg, CP0_STATUS
42 ori \reg, \reg, 1
43 mtc0 \reg, CP0_STATUS
44 irq_enable_hazard
45 .endm
46
47 .macro local_irq_disable reg=t0
48 mfc0 \reg, CP0_STATUS
49 ori \reg, \reg, 1
50 xori \reg, \reg, 1
51 mtc0 \reg, CP0_STATUS
52 irq_disable_hazard
53 .endm
54#endif /* CONFIG_MIPS_MT_SMTC */
55
56#ifdef CONFIG_CPU_SB1
57 .macro fpu_enable_hazard
58 .set push
59 .set noreorder
60 .set mips2
61 SSNOP
62 bnezl $0, .+4
63 SSNOP
64 .set pop
65 .endm
66#else
67 .macro fpu_enable_hazard
68 .endm
69#endif
70
71/*
72 * Temporary until all gas have MT ASE support
73 */
74 .macro DMT reg=0
75 .word (0x41600bc1 | (\reg << 16))
76 .endm
77
78 .macro EMT reg=0
79 .word (0x41600be1 | (\reg << 16))
80 .endm
81
82 .macro DVPE reg=0
83 .word (0x41600001 | (\reg << 16))
84 .endm
85
86 .macro EVPE reg=0
87 .word (0x41600021 | (\reg << 16))
88 .endm
89
90 .macro MFTR rt=0, rd=0, u=0, sel=0
91 .word (0x41000000 | (\rt << 16) | (\rd << 11) | (\u << 5) | (\sel))
92 .endm
93
94 .macro MTTR rt=0, rd=0, u=0, sel=0
95 .word (0x41800000 | (\rt << 16) | (\rd << 11) | (\u << 5) | (\sel))
96 .endm
97
98#endif /* _ASM_ASMMACRO_H */