source: trunk/minix/include/minix/config.h@ 9

Last change on this file since 9 was 9, checked in by Mattia Monga, 13 years ago

Minix 3.1.2a
File size: 4.9 KB
Line 
1#ifndef _CONFIG_H
2#define _CONFIG_H
3
4/* Minix release and version numbers. */
5#define OS_RELEASE "3"
6#define OS_VERSION "1.2a"
7
8/* This file sets configuration parameters for the MINIX kernel, FS, and PM.
9 * It is divided up into two main sections. The first section contains
10 * user-settable parameters. In the second section, various internal system
11 * parameters are set based on the user-settable parameters.
12 *
13 * Parts of config.h have been moved to sys_config.h, which can be included
14 * by other include files that wish to get at the configuration data, but
15 * don't want to pollute the users namespace. Some editable values have
16 * gone there.
17 *
18 */
19
20/* The MACHINE (called _MINIX_MACHINE) setting can be done
21 * in <minix/machine.h>.
22 */
23#include <minix/sys_config.h>
24
25#define MACHINE _MINIX_MACHINE
26
27#define IBM_PC _MACHINE_IBM_PC
28#define SUN_4 _MACHINE_SUN_4
29#define SUN_4_60 _MACHINE_SUN_4_60
30#define ATARI _MACHINE_ATARI
31#define MACINTOSH _MACHINE_MACINTOSH
32
33/* Number of slots in the process table for non-kernel processes. The number
34 * of system processes defines how many processes with special privileges
35 * there can be. User processes share the same properties and count for one.
36 *
37 * These can be changed in sys_config.h.
38 */
39#define NR_PROCS _NR_PROCS
40#define NR_SYS_PROCS _NR_SYS_PROCS
41
42#if _MINIX_SMALL
43
44#define NR_BUFS 100
45#define NR_BUF_HASH 128
46
47#else
48
49/* The buffer cache should be made as large as you can afford. */
50#if (MACHINE == IBM_PC && _WORD_SIZE == 2)
51#define NR_BUFS 40 /* # blocks in the buffer cache */
52#define NR_BUF_HASH 64 /* size of buf hash table; MUST BE POWER OF 2*/
53#endif
54
55#if (MACHINE == IBM_PC && _WORD_SIZE == 4)
56#define NR_BUFS 1200 /* # blocks in the buffer cache */
57#define NR_BUF_HASH 2048 /* size of buf hash table; MUST BE POWER OF 2*/
58#endif
59
60#if (MACHINE == SUN_4_60)
61#define NR_BUFS 512 /* # blocks in the buffer cache (<=1536) */
62#define NR_BUF_HASH 512 /* size of buf hash table; MUST BE POWER OF 2*/
63#endif
64
65#endif /* _MINIX_SMALL */
66
67/* Number of controller tasks (/dev/cN device classes). */
68#define NR_CTRLRS 2
69
70/* Enable or disable the second level file system cache on the RAM disk. */
71#define ENABLE_CACHE2 0
72
73/* Enable or disable swapping processes to disk. */
74#define ENABLE_SWAP 1
75
76/* Include or exclude an image of /dev/boot in the boot image.
77 * Please update the makefile in /usr/src/tools/ as well.
78 */
79#define ENABLE_BOOTDEV 0 /* load image of /dev/boot at boot time */
80
81/* DMA_SECTORS may be increased to speed up DMA based drivers. */
82#define DMA_SECTORS 1 /* DMA buffer size (must be >= 1) */
83
84/* Include or exclude backwards compatibility code. */
85#define ENABLE_BINCOMPAT 0 /* for binaries using obsolete calls */
86#define ENABLE_SRCCOMPAT 0 /* for sources using obsolete calls */
87
88/* Which processes should receive diagnostics from the kernel and system?
89 * Directly sending it to TTY only displays the output. Sending it to the
90 * log driver will cause the diagnostics to be buffered and displayed.
91 * Messages are sent by src/lib/sysutil/kputc.c to these processes, in
92 * the order of this array, which must be terminated by NONE. This is used
93 * by drivers and servers that printf().
94 * The kernel does this for its own kprintf() in kernel/utility.c, also using
95 * this array, but a slightly different mechanism.
96 */
97#define OUTPUT_PROCS_ARRAY { TTY_PROC_NR, LOG_PROC_NR, NONE }
98
99/* NR_CONS, NR_RS_LINES, and NR_PTYS determine the number of terminals the
100 * system can handle.
101 */
102#define NR_CONS 4 /* # system consoles (1 to 8) */
103#define NR_RS_LINES 4 /* # rs232 terminals (0 to 4) */
104#define NR_PTYS 32 /* # pseudo terminals (0 to 64) */
105
106/*===========================================================================*
107 * There are no user-settable parameters after this line *
108 *===========================================================================*/
109/* Set the CHIP type based on the machine selected. The symbol CHIP is actually
110 * indicative of more than just the CPU. For example, machines for which
111 * CHIP == INTEL are expected to have 8259A interrrupt controllers and the
112 * other properties of IBM PC/XT/AT/386 types machines in general. */
113#define INTEL _CHIP_INTEL /* CHIP type for PC, XT, AT, 386 and clones */
114#define M68000 _CHIP_M68000 /* CHIP type for Atari, Amiga, Macintosh */
115#define SPARC _CHIP_SPARC /* CHIP type for SUN-4 (e.g. SPARCstation) */
116
117/* Set the FP_FORMAT type based on the machine selected, either hw or sw */
118#define FP_NONE _FP_NONE /* no floating point support */
119#define FP_IEEE _FP_IEEE /* conform IEEE floating point standard */
120
121/* _MINIX_CHIP is defined in sys_config.h. */
122#define CHIP _MINIX_CHIP
123
124/* _MINIX_FP_FORMAT is defined in sys_config.h. */
125#define FP_FORMAT _MINIX_FP_FORMAT
126
127/* _ASKDEV and _FASTLOAD are defined in sys_config.h. */
128#define ASKDEV _ASKDEV
129#define FASTLOAD _FASTLOAD
130
131#endif /* _CONFIG_H */
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