Annotation of sys/arch/mvme68k/include/cpu.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: cpu.h,v 1.27 2007/05/30 17:10:44 miod Exp $ */
2:
3: /*
4: * Copyright (c) 1995 Theo de Raadt
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
12: * notice, this list of conditions and the following disclaimer in the
13: * documentation and/or other materials provided with the distribution.
14: *
15: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16: * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
19: * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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: * Copyright (c) 1988 University of Utah.
28: * Copyright (c) 1982, 1990, 1993
29: * The Regents of the University of California. All rights reserved.
30: *
31: * This code is derived from software contributed to Berkeley by
32: * the Systems Programming Group of the University of Utah Computer
33: * Science Department.
34: *
35: * Redistribution and use in source and binary forms, with or without
36: * modification, are permitted provided that the following conditions
37: * are met:
38: * 1. Redistributions of source code must retain the above copyright
39: * notice, this list of conditions and the following disclaimer.
40: * 2. Redistributions in binary form must reproduce the above copyright
41: * notice, this list of conditions and the following disclaimer in the
42: * documentation and/or other materials provided with the distribution.
43: * 3. Neither the name of the University nor the names of its contributors
44: * may be used to endorse or promote products derived from this software
45: * without specific prior written permission.
46: *
47: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
48: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
51: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
52: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
53: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
54: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
55: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
56: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
57: * SUCH DAMAGE.
58: *
59: * from: Utah $Hdr: cpu.h 1.16 91/03/25$
60: *
61: * @(#)cpu.h 8.4 (Berkeley) 1/5/94
62: */
63:
64: #ifndef _MVME68K_CPU_H_
65: #define _MVME68K_CPU_H_
66:
67: /*
68: * Exported definitions unique to mvme68k cpu support.
69: */
70:
71: /*
72: * Get common m68k CPU definiti÷ns.
73: */
74: #define M68K_MMU_MOTOROLA
75: #include <m68k/cpu.h>
76:
77: #ifdef _KERNEL
78:
79: /*
80: * Get interrupt glue.
81: */
82: #include <machine/intr.h>
83:
84: /*
85: * definitions of cpu-dependent requirements
86: * referenced in generic code
87: */
88: #define cpu_wait(p) /* nothing */
89:
90: /*
91: * Arguments to hardclock and gatherstats encapsulate the previous
92: * machine state in an opaque clockframe. One the m68k, we use
93: * what the hardware pushes on an interrupt (frame format 0).
94: */
95: struct clockframe {
96: u_short sr; /* sr at time of interrupt */
97: u_long pc; /* pc at time of interrupt */
98: u_short vo; /* vector offset (4-word frame) */
99: };
100:
101: #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0)
102: #define CLKF_PC(framep) ((framep)->pc)
103: #if 0
104: /* We would like to do it this way... */
105: #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0)
106: #else
107: /* but until we start using PSL_M, we have to do this instead */
108: #define CLKF_INTR(framep) (0) /* XXX */
109: #endif
110:
111:
112: /*
113: * Preempt the current process if in interrupt from user mode,
114: * or after the current trap/syscall if in system mode.
115: */
116: extern int want_resched;
117: #define need_resched(ci) { want_resched = 1; aston(); }
118:
119: /*
120: * Give a profiling tick to the current process when the user profiling
121: * buffer pages are invalid. On the m68k, request an ast to send us
122: * through trap, marking the proc as needing a profiling tick.
123: */
124: #define need_proftick(p) aston()
125:
126: /*
127: * Notify the current process (p) that it has a signal pending,
128: * process as soon as possible.
129: */
130: #define signotify(p) aston()
131:
132: extern int astpending;
133: #define aston() (astpending = 1)
134:
135: #endif /* _KERNEL */
136:
137: /*
138: * CTL_MACHDEP definitions.
139: */
140: #define CPU_CONSDEV 1 /* dev_t: console terminal device */
141: #define CPU_MAXID 2 /* number of valid machdep ids */
142:
143: #define CTL_MACHDEP_NAMES { \
144: { 0, 0 }, \
145: { "console_device", CTLTYPE_STRUCT }, \
146: }
147:
148: #ifdef _KERNEL
149:
150: extern vaddr_t intiobase, intiolimit;
151: extern vaddr_t iiomapbase;
152: extern int iiomapsize;
153:
154: /* physical memory sections for mvme147 */
155: #define INTIOBASE_147 (0xfffe0000)
156: #define INTIOTOP_147 (0xfffe5000)
157: #define INTIOSIZE_147 ((INTIOTOP_147-INTIOBASE_147)/NBPG)
158:
159: /* physical memory sections for mvme16x */
160: #define INTIOBASE_162 (0xfff00000)
161: #define INTIOTOP_162 (0xfffd0000) /* was 0xfff50000 */
162: #define INTIOSIZE_162 ((INTIOTOP_162-INTIOBASE_162)/NBPG)
163:
164: /*
165: * Internal IO space (iiomapsize).
166: *
167: * Internal IO space is mapped in the kernel from ``intiobase'' to
168: * ``intiolimit'' (defined in locore.s). Since it is always mapped,
169: * conversion between physical and kernel virtual addresses is easy.
170: */
171: #define ISIIOVA(va) \
172: ((va) >= intiobase && (va) < intiolimit)
173: #define IIOV(pa) ((pa) - iiomapbase + intiobase)
174: #define IIOP(va) ((va) - intiobase + iiomapbase)
175: #define IIOPOFF(pa) ((pa) - iiomapbase)
176:
177: extern int cputyp;
178: #define CPU_147 0x147
179: #define CPU_162 0x162
180: #define CPU_165 0x165
181: #define CPU_166 0x166
182: #define CPU_167 0x167
183: #define CPU_172 0x172
184: #define CPU_177 0x177
185:
186: #include <sys/evcount.h>
187:
188: struct intrhand {
189: SLIST_ENTRY(intrhand) ih_link;
190: int (*ih_fn)(void *);
191: void *ih_arg;
192: int ih_ipl;
193: int ih_wantframe;
194: struct evcount ih_count;
195: };
196:
197: int intr_establish(int, struct intrhand *, const char *);
198:
199: #define NVMEINTR 256
200:
201: /* locore.s */
202: __dead void doboot(void);
203:
204: int badpaddr(paddr_t, int);
205: int badvaddr(vaddr_t, int);
206: void nmihand(void *);
207: int intr_findvec(int, int);
208:
209: void dma_cachectl(caddr_t, int);
210: paddr_t kvtop(vaddr_t);
211:
212: #endif /* _KERNEL */
213: #endif /* _MVME68K_CPU_H_ */
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