pcpu.h (874108aed99d76099ff9eb6c8d830479a504c1ad) pcpu.h (0384fff8c5b098545c3db311b0e0aa1ec4c9ae7e)
1/*-
2 * Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
1/*-
2 * Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
3 * Copyright (c) Peter Wemm <peter@netplex.com.au>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright

--- 10 unchanged lines hidden (view full) ---

22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD$
28 */
29
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright

--- 10 unchanged lines hidden (view full) ---

21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
30#ifndef _MACHINE_PCPU_H_
31#define _MACHINE_PCPU_H_
29#ifndef _MACHINE_GLOBALDATA_H_
30#define _MACHINE_GLOBALDATA_H_
32
31
33#include <machine/cpufunc.h>
34#include <machine/tlb.h>
32#ifdef _KERNEL
35
33
36struct pmap;
37#define CPUSAVE_LEN 8
34#include <sys/queue.h>
38
35
39#define PCPU_MD_COMMON_FIELDS \
40 int pc_inside_intr; \
41 struct pmap *pc_curpmap; /* current pmap */ \
42 struct thread *pc_fputhread; /* current fpu user */ \
43 struct thread *pc_vecthread; /* current vec user */ \
44 uintptr_t pc_hwref; \
45 uint32_t pc_pir; \
46 int pc_bsp; \
47 volatile int pc_awake; \
48 uint32_t pc_ipimask; \
49 register_t pc_tempsave[CPUSAVE_LEN]; \
50 register_t pc_disisave[CPUSAVE_LEN]; \
51 register_t pc_dbsave[CPUSAVE_LEN];
52
53#define PCPU_MD_AIM_FIELDS
54
55#define BOOKE_CRITSAVE_LEN (CPUSAVE_LEN + 2)
56#define BOOKE_TLB_MAXNEST 3
57#define BOOKE_TLB_SAVELEN 16
58#define BOOKE_TLBSAVE_LEN (BOOKE_TLB_SAVELEN * BOOKE_TLB_MAXNEST)
59
60#define PCPU_MD_BOOKE_FIELDS \
61 register_t pc_booke_critsave[BOOKE_CRITSAVE_LEN]; \
62 register_t pc_booke_mchksave[CPUSAVE_LEN]; \
63 register_t pc_booke_tlbsave[BOOKE_TLBSAVE_LEN]; \
64 register_t pc_booke_tlb_level; \
65 uint32_t *pc_booke_tlb_lock; \
66 int pc_tid_next;
67
68/* Definitions for register offsets within the exception tmp save areas */
69#define CPUSAVE_R28 0 /* where r28 gets saved */
70#define CPUSAVE_R29 1 /* where r29 gets saved */
71#define CPUSAVE_R30 2 /* where r30 gets saved */
72#define CPUSAVE_R31 3 /* where r31 gets saved */
73#define CPUSAVE_AIM_DAR 4 /* where SPR_DAR gets saved */
74#define CPUSAVE_AIM_DSISR 5 /* where SPR_DSISR gets saved */
75#define CPUSAVE_BOOKE_DEAR 4 /* where SPR_DEAR gets saved */
76#define CPUSAVE_BOOKE_ESR 5 /* where SPR_ESR gets saved */
77#define CPUSAVE_SRR0 6 /* where SRR0 gets saved */
78#define CPUSAVE_SRR1 7 /* where SRR1 gets saved */
79
80/* Book-E TLBSAVE is more elaborate */
81#define TLBSAVE_BOOKE_LR 0
82#define TLBSAVE_BOOKE_CR 1
83#define TLBSAVE_BOOKE_SRR0 2
84#define TLBSAVE_BOOKE_SRR1 3
85#define TLBSAVE_BOOKE_R20 4
86#define TLBSAVE_BOOKE_R21 5
87#define TLBSAVE_BOOKE_R22 6
88#define TLBSAVE_BOOKE_R23 7
89#define TLBSAVE_BOOKE_R24 8
90#define TLBSAVE_BOOKE_R25 9
91#define TLBSAVE_BOOKE_R26 10
92#define TLBSAVE_BOOKE_R27 11
93#define TLBSAVE_BOOKE_R28 12
94#define TLBSAVE_BOOKE_R29 13
95#define TLBSAVE_BOOKE_R30 14
96#define TLBSAVE_BOOKE_R31 15
97
98#ifndef COMPILING_LINT
99#ifdef AIM
100#define PCPU_MD_FIELDS \
101 PCPU_MD_COMMON_FIELDS \
102 PCPU_MD_AIM_FIELDS
103#endif
104#ifdef E500
105#define PCPU_MD_FIELDS \
106 PCPU_MD_COMMON_FIELDS \
107 PCPU_MD_BOOKE_FIELDS
108#endif
109#else
110#define PCPU_MD_FIELDS \
111 PCPU_MD_COMMON_FIELDS \
112 PCPU_MD_AIM_FIELDS \
113 PCPU_MD_BOOKE_FIELDS
114#endif
115/*
36/*
116 * Catch-all for ports (e.g. lsof, used by gtop)
37 * This structure maps out the global data that needs to be kept on a
38 * per-cpu basis. genassym uses this to generate offsets for the assembler
39 * code, which also provides external symbols so that C can get at them as
40 * though they were really globals. This structure is pointed to by
41 * the per-cpu system value (see alpha_pal_rdval() and alpha_pal_wrval()).
42 * Inside the kernel, the globally reserved register t7 is used to
43 * point at the globaldata structure.
117 */
44 */
118#ifndef PCPU_MD_FIELDS
119#define PCPU_MD_FIELDS \
120 int pc_md_placeholder
45struct globaldata {
46 struct alpha_pcb gd_idlepcb; /* pcb for idling */
47 struct proc *gd_curproc; /* current process */
48 struct proc *gd_idleproc; /* idle process */
49 struct proc *gd_fpcurproc; /* fp state owner */
50 struct pcb *gd_curpcb; /* current pcb */
51 struct timeval gd_switchtime;
52 int gd_switchticks;
53 u_int gd_cpuno; /* this cpu number */
54 u_int gd_other_cpus; /* all other cpus */
55 int gd_inside_intr;
56 u_int64_t gd_idlepcbphys; /* pa of gd_idlepcb */
57 u_int64_t gd_pending_ipis; /* pending IPI events */
58 u_int32_t gd_next_asn; /* next ASN to allocate */
59 u_int32_t gd_current_asngen; /* ASN rollover check */
60 u_int32_t gd_intr_nesting_level; /* interrupt recursion */
61
62 u_int gd_astpending;
63 SLIST_ENTRY(globaldata) gd_allcpu;
64#ifdef KTR_PERCPU
65 volatile int gd_ktr_idx; /* Index into trace table */
66 char *gd_ktr_buf;
67 char gd_ktr_buf_data[0];
121#endif
68#endif
69};
122
70
123#ifdef _KERNEL
71SLIST_HEAD(cpuhead, globaldata);
72extern struct cpuhead cpuhead;
124
73
125#define pcpup ((struct pcpu *) powerpc_get_pcpup())
74void globaldata_init(struct globaldata *pcpu, int cpuno, size_t sz);
75struct globaldata *globaldata_find(int cpuno);
126
76
127#define PCPU_GET(member) (pcpup->pc_ ## member)
128
129/*
130 * XXX The implementation of this operation should be made atomic
131 * with respect to preemption.
132 */
133#define PCPU_ADD(member, value) (pcpup->pc_ ## member += (value))
134#define PCPU_INC(member) PCPU_ADD(member, 1)
135#define PCPU_PTR(member) (&pcpup->pc_ ## member)
136#define PCPU_SET(member,value) (pcpup->pc_ ## member = (value))
137
138#endif /* _KERNEL */
139
77#endif /* _KERNEL */
78
140#endif /* !_MACHINE_PCPU_H_ */
79#endif /* !_MACHINE_GLOBALDATA_H_ */