summaryrefslogtreecommitdiffstats
path: root/sys/powerpc/include/pcpu.h
blob: 62094f8d31071159825f6e8dbd8006de79070cc1 (plain)
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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
/*-
 * Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
 * Copyright (c) Peter Wemm <peter@netplex.com.au>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */

#ifndef	_MACHINE_PCPU_H_
#define	_MACHINE_PCPU_H_

#include <machine/cpufunc.h>
#include <machine/slb.h>
#include <machine/tlb.h>

struct pmap;
#define	CPUSAVE_LEN	9

#define	PCPU_MD_COMMON_FIELDS						\
	int		pc_inside_intr;					\
	struct pmap	*pc_curpmap;		/* current pmap */	\
	struct thread	*pc_fputhread;		/* current fpu user */  \
	struct thread	*pc_vecthread;		/* current vec user */  \
	uintptr_t	pc_hwref;					\
	uint32_t	pc_pir;						\
	int		pc_bsp;						\
	volatile int	pc_awake;					\
	uint32_t	pc_ipimask;					\
	register_t	pc_tempsave[CPUSAVE_LEN];			\
	register_t	pc_disisave[CPUSAVE_LEN];			\
	register_t	pc_dbsave[CPUSAVE_LEN];

#define PCPU_MD_AIM32_FIELDS

#define PCPU_MD_AIM64_FIELDS						\
	struct slb	pc_slb[64];					\
	struct slb	**pc_userslb;					\
	register_t	pc_slbsave[18];					\
	uint8_t		pc_slbstack[1024];

#ifdef __powerpc64__
#define PCPU_MD_AIM_FIELDS	PCPU_MD_AIM64_FIELDS
#else
#define PCPU_MD_AIM_FIELDS	PCPU_MD_AIM32_FIELDS
#endif

#define	BOOKE_CRITSAVE_LEN	(CPUSAVE_LEN + 2)
#define	BOOKE_TLB_MAXNEST	3
#define	BOOKE_TLB_SAVELEN	16
#define	BOOKE_TLBSAVE_LEN	(BOOKE_TLB_SAVELEN * BOOKE_TLB_MAXNEST)

#define PCPU_MD_BOOKE_FIELDS						\
	register_t	pc_booke_critsave[BOOKE_CRITSAVE_LEN];		\
	register_t	pc_booke_mchksave[CPUSAVE_LEN];			\
	register_t	pc_booke_tlbsave[BOOKE_TLBSAVE_LEN];		\
	register_t	pc_booke_tlb_level;				\
	uint32_t	*pc_booke_tlb_lock;				\
	int		pc_tid_next;

/* Definitions for register offsets within the exception tmp save areas */
#define	CPUSAVE_R27	0		/* where r27 gets saved */
#define	CPUSAVE_R28	1		/* where r28 gets saved */
#define	CPUSAVE_R29	2		/* where r29 gets saved */
#define	CPUSAVE_R30	3		/* where r30 gets saved */
#define	CPUSAVE_R31	4		/* where r31 gets saved */
#define	CPUSAVE_AIM_DAR		5	/* where SPR_DAR gets saved */
#define	CPUSAVE_AIM_DSISR	6	/* where SPR_DSISR gets saved */
#define	CPUSAVE_BOOKE_DEAR	5	/* where SPR_DEAR gets saved */
#define	CPUSAVE_BOOKE_ESR	6	/* where SPR_ESR gets saved */
#define	CPUSAVE_SRR0	7		/* where SRR0 gets saved */
#define	CPUSAVE_SRR1	8		/* where SRR1 gets saved */

/* Book-E TLBSAVE is more elaborate */
#define TLBSAVE_BOOKE_LR	0
#define TLBSAVE_BOOKE_CR	1
#define TLBSAVE_BOOKE_SRR0	2
#define TLBSAVE_BOOKE_SRR1	3
#define TLBSAVE_BOOKE_R20	4
#define TLBSAVE_BOOKE_R21	5
#define TLBSAVE_BOOKE_R22	6
#define TLBSAVE_BOOKE_R23	7
#define TLBSAVE_BOOKE_R24	8
#define TLBSAVE_BOOKE_R25	9
#define TLBSAVE_BOOKE_R26	10
#define TLBSAVE_BOOKE_R27	11
#define TLBSAVE_BOOKE_R28	12
#define TLBSAVE_BOOKE_R29	13
#define TLBSAVE_BOOKE_R30	14
#define TLBSAVE_BOOKE_R31	15

#ifndef COMPILING_LINT
#ifdef AIM
#define	PCPU_MD_FIELDS		\
	PCPU_MD_COMMON_FIELDS	\
	PCPU_MD_AIM_FIELDS
#endif
#ifdef E500
#define	PCPU_MD_FIELDS		\
	PCPU_MD_COMMON_FIELDS	\
	PCPU_MD_BOOKE_FIELDS
#endif
#else
#define	PCPU_MD_FIELDS		\
	PCPU_MD_COMMON_FIELDS	\
	PCPU_MD_AIM_FIELDS	\
	PCPU_MD_BOOKE_FIELDS
#endif
/*
 * Catch-all for ports (e.g. lsof, used by gtop)
 */
#ifndef PCPU_MD_FIELDS
#define	PCPU_MD_FIELDS							\
	int		pc_md_placeholder
#endif

#ifdef _KERNEL

#define pcpup	((struct pcpu *) powerpc_get_pcpup())

#ifdef AIM /* Book-E not yet adapted */
static __inline __pure2 struct thread *
__curthread(void)
{
	struct thread *td;
#ifdef __powerpc64__
	__asm __volatile("mr %0,13" : "=r"(td));
#else
	__asm __volatile("mr %0,2" : "=r"(td));
#endif
	return (td);
}
#define curthread (__curthread())
#endif

#define	PCPU_GET(member)	(pcpup->pc_ ## member)

/*
 * XXX The implementation of this operation should be made atomic
 * with respect to preemption.
 */
#define	PCPU_ADD(member, value)	(pcpup->pc_ ## member += (value))
#define	PCPU_INC(member)	PCPU_ADD(member, 1)
#define	PCPU_PTR(member)	(&pcpup->pc_ ## member)
#define	PCPU_SET(member,value)	(pcpup->pc_ ## member = (value))

#endif	/* _KERNEL */

#endif	/* !_MACHINE_PCPU_H_ */
OpenPOWER on IntegriCloud