include/minix/config.h

   1 #ifndef _CONFIG_H
   2 #define _CONFIG_H
   3
   4 /* Minix release and version numbers. */
   5 #define OS_RELEASE "3"
   6 #define OS_VERSION "1.7"
   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
  29 /* Number of slots in the process table for non-kernel processes. The number
  30  * of system processes defines how many processes with special privileges
  31  * there can be. User processes share the same properties and count for one.
  32  *
  33  * These can be changed in sys_config.h.
  34  */
  35 #define NR_PROCS          _NR_PROCS
  36 #define NR_SYS_PROCS      _NR_SYS_PROCS
  37 #define NR_SYS_CHUNKS     BITMAP_CHUNKS(NR_SYS_PROCS)
  38
  39 /* Number of controller tasks (/dev/cN device classes). */
  40 #define NR_CTRLRS          2
  41
  42 /* DMA_SECTORS may be increased to speed up DMA based drivers. */
  43 #define DMA_SECTORS        1    /* DMA buffer size (must be >= 1) */
  44
  45 /* Which processes should receive diagnostics from the kernel and system?
  46  * Directly sending it to TTY only displays the output. Sending it to the
  47  * log driver will cause the diagnostics to be buffered and displayed.
  48  * Messages are sent by src/lib/sysutil/kputc.c to these processes, in
  49  * the order of this array, which must be terminated by NONE. This is used
  50  * by drivers and servers that printf().
  51  * The kernel does this for its own kprintf() in kernel/utility.c, also using
  52  * this array, but a slightly different mechanism.
  53  */
  54 #define OUTPUT_PROCS_ARRAY      { TTY_PROC_NR, LOG_PROC_NR, NONE }
  55
  56 /* NR_CONS, NR_RS_LINES, and NR_PTYS determine the number of terminals the
  57  * system can handle.
  58  */
  59 #define NR_CONS            4    /* # system consoles (1 to 8) */
  60 #define NR_RS_LINES        4    /* # rs232 terminals (0 to 4) */
  61 #define NR_PTYS            32   /* # pseudo terminals (0 to 64) */
  62
  63 /* This feature enable the counting of system calls in PM and FS */
  64 #define ENABLE_SYSCALL_STATS    0
  65
  66 /*===========================================================================*
  67  *      There are no user-settable parameters after this line                *
  68  *===========================================================================*/
  69 /* Set the CHIP type based on the machine selected. The symbol CHIP is actually
  70  * indicative of more than just the CPU.  For example, machines for which
  71  * CHIP == INTEL are expected to have 8259A interrrupt controllers and the
  72  * other properties of IBM PC/XT/AT/386 types machines in general. */
  73 #define INTEL             _CHIP_INTEL   /* CHIP type for PC, XT, AT, 386 and clones */
  74 #define M68000            _CHIP_M68000  /* CHIP type for Atari, Amiga, Macintosh    */
  75 #define SPARC             _CHIP_SPARC   /* CHIP type for SUN-4 (e.g. SPARCstation)  */
  76
  77 /* Set the FP_FORMAT type based on the machine selected, either hw or sw    */
  78 #define FP_NONE  _FP_NONE       /* no floating point support                */
  79 #define FP_IEEE  _FP_IEEE       /* conform IEEE floating point standard     */
  80
  81 /* _MINIX_CHIP is defined in sys_config.h. */
  82 #define CHIP    _MINIX_CHIP
  83
  84 /* _MINIX_FP_FORMAT is defined in sys_config.h. */
  85 #define FP_FORMAT       _MINIX_FP_FORMAT
  86
  87 /* _ASKDEV and _FASTLOAD are defined in sys_config.h. */
  88 #define ASKDEV _ASKDEV
  89 #define FASTLOAD _FASTLOAD
  90
  91 /* Enable or disable system profiling. */
  92 #define SPROFILE          1    /* statistical profiling */
  93 #define CPROFILE          0    /* call profiling */
  94
  95 /* PCI configuration parameters */
  96 #define NR_PCIBUS 40
  97 #define NR_PCIDEV 50
  98
  99 #endif /* _CONFIG_H */