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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
|
/* $OpenBSD: cpu.h,v 1.12 2001/05/25 22:07:17 millert Exp $ */
/* $NetBSD: cpu.h,v 1.28 1998/02/13 07:41:51 scottr Exp $ */
/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* from: Utah $Hdr: cpu.h 1.16 91/03/25$
*
* @(#)cpu.h 8.4 (Berkeley) 1/5/94
*/
#ifndef _HP300_CPU_H_
#define _HP300_CPU_H_
/*
* Exported definitions unique to hp300/68k cpu support.
*/
/*
* Get common m68k CPU definitions.
*/
#include <m68k/cpu.h>
/*
* Get interrupt glue.
*/
#include <machine/intr.h>
/*
* definitions of cpu-dependent requirements
* referenced in generic code
*/
#define cpu_swapin(p) /* nothing */
#define cpu_wait(p) /* nothing */
#define cpu_swapout(p) /* nothing */
/*
* Arguments to hardclock and gatherstats encapsulate the previous
* machine state in an opaque clockframe. One the hp300, we use
* what the hardware pushes on an interrupt (frame format 0).
*/
struct clockframe {
u_short sr; /* sr at time of interrupt */
u_long pc; /* pc at time of interrupt */
u_short vo; /* vector offset (4-word frame) */
};
#define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0)
#define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0)
#define CLKF_PC(framep) ((framep)->pc)
#if 0
/* We would like to do it this way... */
#define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0)
#else
/* but until we start using PSL_M, we have to do this instead */
#define CLKF_INTR(framep) (0) /* XXX */
#endif
/*
* Preempt the current process if in interrupt from user mode,
* or after the current trap/syscall if in system mode.
*/
extern int want_resched; /* resched() was called */
#define need_resched() { want_resched++; aston(); }
/*
* Give a profiling tick to the current process when the user profiling
* buffer pages are invalid. On the hp300, request an ast to send us
* through trap, marking the proc as needing a profiling tick.
*/
#define need_proftick(p) { (p)->p_flag |= P_OWEUPC; aston(); }
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) aston()
extern int astpending; /* need to trap before returning to user mode */
#define aston() (astpending++)
/*
* CTL_MACHDEP definitions.
*/
#define CPU_CONSDEV 1 /* dev_t: console terminal device */
#define CPU_CPUSPEED 2 /* CPU speed in Mhz */
#define CPU_MACHINEID 3 /* machine id (HP_XXX) */
#define CPU_MMUID 4 /* mmu id (MMUID_*) */
#define CPU_MAXID 5 /* number of valid machdep ids */
#define CTL_MACHDEP_NAMES { \
{ 0, 0 }, \
{ "console_device", CTLTYPE_STRUCT }, \
{ "cpuspeed", CTLTYPE_INT }, \
{ "machineid", CTLTYPE_INT }, \
{ "mmuid", CTLTYPE_INT }, \
}
/*
* The rest of this should probably be moved to <machine/hp300spu.h>,
* although some of it could probably be put into generic 68k headers.
*/
#ifdef _KERNEL
extern char *intiobase, *intiolimit;
extern void (*vectab[]) __P((void));
struct frame;
struct fpframe;
struct pcb;
/* locore.s functions */
void m68881_save __P((struct fpframe *));
void m68881_restore __P((struct fpframe *));
u_long getdfc __P((void));
u_long getsfc __P((void));
void DCIA __P((void));
void DCIS __P((void));
void DCIU __P((void));
void ICIA __P((void));
void ICPA __P((void));
void PCIA __P((void));
void TBIA __P((void));
void TBIS __P((vaddr_t));
void TBIAS __P((void));
void TBIAU __P((void));
#if defined(M68040)
void DCFA __P((void));
void DCFP __P((paddr_t));
void DCFL __P((paddr_t));
void DCPL __P((paddr_t));
void DCPP __P((paddr_t));
void ICPL __P((paddr_t));
void ICPP __P((paddr_t));
#endif
int suline __P((caddr_t, caddr_t));
void savectx __P((struct pcb *));
void switch_exit __P((struct proc *));
void proc_trampoline __P((void));
void loadustp __P((int));
void doboot __P((void))
__attribute__((__noreturn__));
void ecacheon __P((void));
void ecacheoff __P((void));
/* clock.c functions */
void hp300_calibrate_delay __P((void));
/* machdep.c functions */
int badaddr __P((caddr_t));
int badbaddr __P((caddr_t));
void regdump __P((struct frame *, int));
void dumpconf __P((void));
/* pmap.c functions */
vaddr_t pmap_map __P((vaddr_t, paddr_t, paddr_t, int));
/* sys_machdep.c functions */
int cachectl __P((int, vaddr_t, int));
/* vm_machdep.c functions */
void physaccess __P((caddr_t, caddr_t, int, int));
void physunaccess __P((caddr_t, int));
int kvtop __P((caddr_t));
/* what is this supposed to do? i.e. how is it different than startrtclock? */
#define enablertclock()
#endif /* _KERNEL */
/* physical memory sections */
#define ROMBASE (0x00000000)
#define INTIOBASE (0x00400000)
#define INTIOTOP (0x00600000)
#define EXTIOBASE (0x00600000)
#define EXTIOTOP (0x20000000)
#define MAXADDR (0xFFFFF000)
/*
* Internal IO space:
*
* Ranges from 0x400000 to 0x600000 (IIOMAPSIZE).
*
* Internal IO space is mapped in the kernel from ``intiobase'' to
* ``intiolimit'' (defined in locore.s). Since it is always mapped,
* conversion between physical and kernel virtual addresses is easy.
*/
#define ISIIOVA(va) \
((char *)(va) >= intiobase && (char *)(va) < intiolimit)
#define IIOV(pa) ((int)(pa)-INTIOBASE+(int)intiobase)
#define IIOP(va) ((int)(va)-(int)intiobase+INTIOBASE)
#define IIOPOFF(pa) ((int)(pa)-INTIOBASE)
#define IIOMAPSIZE btoc(INTIOTOP-INTIOBASE) /* 2mb */
/*
* External IO space:
*
* DIO ranges from select codes 0-63 at physical addresses given by:
* 0x600000 + (sc - 32) * 0x10000
* DIO cards are addressed in the range 0-31 [0x600000-0x800000) for
* their control space and the remaining areas, [0x200000-0x400000) and
* [0x800000-0x1000000), are for additional space required by a card;
* e.g. a display framebuffer.
*
* DIO-II ranges from select codes 132-255 at physical addresses given by:
* 0x1000000 + (sc - 132) * 0x400000
* The address range of DIO-II space is thus [0x1000000-0x20000000).
*
* DIO/DIO-II space is too large to map in its entirety, instead devices
* are mapped into kernel virtual address space allocated from a range
* of EIOMAPSIZE pages (vmparam.h) starting at ``extiobase''.
*/
#define DIOBASE (0x600000)
#define DIOTOP (0x1000000)
#define DIOCSIZE (0x10000)
#define DIOIIBASE (0x01000000)
#define DIOIITOP (0x20000000)
#define DIOIICSIZE (0x00400000)
/*
* HP MMU
*/
#define MMUBASE IIOPOFF(0x5F4000)
#define MMUSSTP 0x0
#define MMUUSTP 0x4
#define MMUTBINVAL 0x8
#define MMUSTAT 0xC
#define MMUCMD MMUSTAT
#define MMU_UMEN 0x0001 /* enable user mapping */
#define MMU_SMEN 0x0002 /* enable supervisor mapping */
#define MMU_CEN 0x0004 /* enable data cache */
#define MMU_BERR 0x0008 /* bus error */
#define MMU_IEN 0x0020 /* enable instruction cache */
#define MMU_FPE 0x0040 /* enable 68881 FP coprocessor */
#define MMU_WPF 0x2000 /* write protect fault */
#define MMU_PF 0x4000 /* page fault */
#define MMU_PTF 0x8000 /* page table fault */
#define MMU_FAULT (MMU_PTF|MMU_PF|MMU_WPF|MMU_BERR)
#define MMU_ENAB (MMU_UMEN|MMU_SMEN|MMU_IEN|MMU_FPE)
#endif /* _HP300_CPU_H_ */
|
