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
|
/* $FreeBSD$ */
/* $NetBSD: tcvar.h,v 1.13 1998/05/22 21:15:48 thorpej Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#ifndef __DEV_TC_TCVAR_H__
#define __DEV_TC_TCVAR_H__
/*
* Definitions for TurboChannel autoconfiguration.
*/
/*
* In the long run, the following block will go completely away.
* For now, the MI TC code still uses the old TC_IPL_ names
* and not the new IPL_ names.
*/
#if 1
/*
* Map the new definitions to the old.
*/
#include <machine/intr.h>
#define tc_intrlevel_t int
#define TC_IPL_NONE IPL_NONE
#define TC_IPL_BIO IPL_BIO
#define TC_IPL_NET IPL_NET
#define TC_IPL_TTY IPL_TTY
#define TC_IPL_CLOCK IPL_CLOCK
#endif /* 1 */
typedef u_int64_t tc_addr_t;
typedef int32_t tc_offset_t;
#define tc_mb() alpha_mb()
#define tc_wmb() alpha_wmb()
/*
* A junk address to read from, to make sure writes are complete. See
* System Programmer's Manual, section 9.3 (p. 9-4), and sacrifice a
* chicken.
*/
#define tc_syncbus() \
do { \
volatile u_int32_t no_optimize; \
no_optimize = \
*(volatile u_int32_t *)ALPHA_PHYS_TO_K0SEG(0x00000001f0080220); \
} while (0)
#define tc_badaddr(tcaddr) \
badaddr((void *)(tcaddr), sizeof (u_int32_t))
#define TC_SPACE_IND 0xffffffffe0000003
#define TC_SPACE_DENSE 0x0000000000000000
#define TC_SPACE_DENSE_OFFSET 0x0000000007fffffc
#define TC_SPACE_SPARSE 0x0000000010000000
#define TC_SPACE_SPARSE_OFFSET 0x000000000ffffff8
#define TC_DENSE_TO_SPARSE(addr) \
(((addr) & TC_SPACE_IND) | TC_SPACE_SPARSE | \
(((addr) & TC_SPACE_DENSE_OFFSET) << 1))
#define TC_PHYS_TO_UNCACHED(addr) \
(addr)
/*
* These functions are private, and may not be called by
* machine-independent code.
*/
void tc_dma_init __P((void));
/*
* Address of scatter/gather SRAM on the 3000/500-series.
*
* There is room for 32K entries, yielding 256M of sgva space.
* The page table is readable in both dense and sparse space.
* The page table is writable only in sparse space.
*
* In sparse space, the 32-bit PTEs are followed by 32-bits
* of pad.
*/
#define TC_SGSRAM_DENSE 0x0000001c2800000UL
#define TC_SGSRAM_SPARSE 0x0000001d5000000UL
/*
* Description of TurboChannel slots, provided by machine-dependent
* code to the TurboChannel bus driver.
*/
struct tc_slotdesc {
tc_addr_t tcs_addr;
void *tcs_cookie;
int tcs_used;
};
/*
* Description of built-in TurboChannel devices, provided by
* machine-dependent code to the TurboChannel bus driver.
*/
struct tc_builtin {
char *tcb_modname;
u_int tcb_slot;
tc_offset_t tcb_offset;
void *tcb_cookie;
};
/*
* Arguments used to attach TurboChannel busses.
*/
struct tcbus_attach_args {
char *tba_busname; /* XXX should be common */
/* bus_space_tag_t tba_memt;*/
/* Bus information */
u_int tba_speed; /* see TC_SPEED_* below */
u_int tba_nslots;
struct tc_slotdesc *tba_slots;
u_int tba_nbuiltins;
const struct tc_builtin *tba_builtins;
/* TC bus resource management; XXX will move elsewhere eventually. */
/*
void (*tba_intr_establish) __P((device_t, void *,
tc_intrlevel_t, int (*)(void *), void *));
void (*tba_intr_disestablish) __P((device_t, void *));
*/
};
/*
* Arguments used to attach TurboChannel devices.
*/
struct tc_attach_args {
/*
bus_space_tag_t ta_memt;
bus_dma_tag_t ta_dmat;
*/
char ta_modname[TC_ROM_LLEN+1];
u_int ta_slot;
tc_offset_t ta_offset;
tc_addr_t ta_addr;
void *ta_cookie;
u_int ta_busspeed; /* see TC_SPEED_* below */
};
/*
* Interrupt establishment functions.
*/
void tc_intr_establish __P((device_t, void *, tc_intrlevel_t,
int (*)(void *), void *));
void tc_intr_disestablish __P((device_t, void *));
#if 0
#include "locators.h"
/*
* Easy to remember names for TurboChannel device locators.
*/
#define tccf_slot cf_loc[TCCF_SLOT] /* slot */
#define tccf_offset cf_loc[TCCF_OFFSET] /* offset */
#endif
#define TCCF_SLOT_UNKNOWN TCCF_SLOT_DEFAULT
#define TCCF_OFFSET_UNKNOWN TCCF_OFFSET_DEFAULT
/*
* Miscellaneous definitions.
*/
#define TC_SPEED_12_5_MHZ 0 /* 12.5MHz TC bus */
#define TC_SPEED_25_MHZ 1 /* 25MHz TC bus */
#endif /* __DEV_TC_TCVAR_H__ */
|