cpu.h revision 1.15 1 1.15 tsubai /* $NetBSD: cpu.h,v 1.15 2001/01/01 04:33:40 tsubai Exp $ */
2 1.1 tsubai
3 1.1 tsubai /*
4 1.1 tsubai * Copyright (C) 1995-1997 Wolfgang Solfrank.
5 1.1 tsubai * Copyright (C) 1995-1997 TooLs GmbH.
6 1.1 tsubai * All rights reserved.
7 1.1 tsubai *
8 1.1 tsubai * Redistribution and use in source and binary forms, with or without
9 1.1 tsubai * modification, are permitted provided that the following conditions
10 1.1 tsubai * are met:
11 1.1 tsubai * 1. Redistributions of source code must retain the above copyright
12 1.1 tsubai * notice, this list of conditions and the following disclaimer.
13 1.1 tsubai * 2. Redistributions in binary form must reproduce the above copyright
14 1.1 tsubai * notice, this list of conditions and the following disclaimer in the
15 1.1 tsubai * documentation and/or other materials provided with the distribution.
16 1.1 tsubai * 3. All advertising materials mentioning features or use of this software
17 1.1 tsubai * must display the following acknowledgement:
18 1.1 tsubai * This product includes software developed by TooLs GmbH.
19 1.1 tsubai * 4. The name of TooLs GmbH may not be used to endorse or promote products
20 1.1 tsubai * derived from this software without specific prior written permission.
21 1.1 tsubai *
22 1.1 tsubai * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
23 1.1 tsubai * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 1.1 tsubai * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 1.1 tsubai * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 1.1 tsubai * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27 1.1 tsubai * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
28 1.1 tsubai * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 1.1 tsubai * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30 1.1 tsubai * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31 1.1 tsubai * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 1.1 tsubai */
33 1.1 tsubai #ifndef _MACHINE_CPU_H_
34 1.1 tsubai #define _MACHINE_CPU_H_
35 1.1 tsubai
36 1.11 thorpej #if defined(_KERNEL) && !defined(_LKM)
37 1.11 thorpej #include "opt_lockdebug.h"
38 1.12 tsubai #include "opt_multiprocessor.h"
39 1.11 thorpej #endif
40 1.11 thorpej
41 1.1 tsubai #include <machine/frame.h>
42 1.1 tsubai #include <machine/psl.h>
43 1.1 tsubai #include <machine/intr.h>
44 1.11 thorpej
45 1.12 tsubai #ifdef _KERNEL
46 1.11 thorpej #include <sys/sched.h>
47 1.11 thorpej struct cpu_info {
48 1.11 thorpej struct schedstate_percpu ci_schedstate; /* scheduler state */
49 1.11 thorpej #if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
50 1.11 thorpej u_long ci_spin_locks; /* # of spin locks held */
51 1.11 thorpej u_long ci_simple_locks; /* # of simple locks held */
52 1.11 thorpej #endif
53 1.12 tsubai struct proc *ci_curproc; /* current owner of the processor */
54 1.12 tsubai
55 1.12 tsubai struct pcb *ci_curpcb;
56 1.12 tsubai struct pmap *ci_curpm;
57 1.12 tsubai struct proc *ci_fpuproc;
58 1.12 tsubai struct pcb *ci_idle_pcb; /* PA of our idle pcb */
59 1.12 tsubai int ci_cpuid;
60 1.15 tsubai
61 1.15 tsubai int ci_astpending;
62 1.15 tsubai int ci_want_resched;
63 1.15 tsubai u_long ci_lasttb;
64 1.15 tsubai int ci_tickspending;
65 1.15 tsubai int ci_cpl;
66 1.15 tsubai int ci_ipending;
67 1.15 tsubai int ci_intrdepth;
68 1.15 tsubai char *ci_intstk;
69 1.15 tsubai char *ci_spillstk;
70 1.15 tsubai int ci_tempsave[8];
71 1.15 tsubai int ci_ddbsave[8];
72 1.15 tsubai int ci_ipkdbsave[8];
73 1.15 tsubai int ci_disisave[4];
74 1.11 thorpej };
75 1.11 thorpej
76 1.12 tsubai #ifdef MULTIPROCESSOR
77 1.12 tsubai static __inline int
78 1.12 tsubai cpu_number()
79 1.12 tsubai {
80 1.12 tsubai int pir;
81 1.12 tsubai
82 1.12 tsubai asm ("mfspr %0,1023" : "=r"(pir));
83 1.12 tsubai return pir;
84 1.12 tsubai }
85 1.12 tsubai
86 1.12 tsubai extern struct cpu_info cpu_info[];
87 1.12 tsubai
88 1.12 tsubai #define CPU_IS_PRIMARY(ci) ((ci)->ci_cpuid == 0)
89 1.12 tsubai #define curcpu() (&cpu_info[cpu_number()])
90 1.12 tsubai #define curproc curcpu()->ci_curproc
91 1.12 tsubai #define fpuproc curcpu()->ci_fpuproc
92 1.12 tsubai #define curpcb curcpu()->ci_curpcb
93 1.12 tsubai #define curpm curcpu()->ci_curpm
94 1.15 tsubai #define want_resched curcpu()->ci_want_resched
95 1.15 tsubai #define astpending curcpu()->ci_astpending
96 1.12 tsubai
97 1.12 tsubai #else
98 1.11 thorpej extern struct cpu_info cpu_info_store;
99 1.15 tsubai extern volatile int want_resched;
100 1.15 tsubai extern volatile int astpending;
101 1.11 thorpej
102 1.12 tsubai #define curcpu() (&cpu_info_store)
103 1.12 tsubai #define cpu_number() 0
104 1.12 tsubai
105 1.12 tsubai #endif /* MULTIPROCESSOR */
106 1.1 tsubai
107 1.1 tsubai #define CLKF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0)
108 1.1 tsubai #define CLKF_BASEPRI(frame) ((frame)->pri == 0)
109 1.1 tsubai #define CLKF_PC(frame) ((frame)->srr0)
110 1.2 tsubai #define CLKF_INTR(frame) ((frame)->depth > 0)
111 1.14 mycroft
112 1.14 mycroft #define PROC_PC(p) (trapframe(p)->srr0)
113 1.1 tsubai
114 1.1 tsubai #define cpu_swapout(p)
115 1.1 tsubai #define cpu_wait(p)
116 1.1 tsubai
117 1.1 tsubai extern void delay __P((unsigned));
118 1.1 tsubai #define DELAY(n) delay(n)
119 1.1 tsubai
120 1.13 tsubai #define need_resched(ci) (want_resched = 1, astpending = 1)
121 1.1 tsubai #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, astpending = 1)
122 1.1 tsubai #define signotify(p) (astpending = 1)
123 1.1 tsubai
124 1.10 tsubai extern char bootpath[];
125 1.12 tsubai
126 1.12 tsubai #endif /* _KERNEL */
127 1.4 tsubai
128 1.7 tsubai #if defined(_KERNEL) || defined(_STANDALONE)
129 1.6 ws #define CACHELINESIZE 32
130 1.6 ws #endif
131 1.1 tsubai
132 1.6 ws #include <powerpc/cpu.h>
133 1.1 tsubai
134 1.1 tsubai #endif /* _MACHINE_CPU_H_ */
135