include/minix/config.h

   1 #ifndef _CONFIG_H
   2 #define _CONFIG_H
   3
   4 /* Minix release and version numbers. */
   5 #define OS_NAME "Minix"
   6 #define OS_RELEASE "3.3.0"
   7 #define OS_CONFIG "GENERIC"
   8 #define OS_VERSION OS_NAME " " OS_RELEASE " (" OS_CONFIG ")"
   9
  10 /* This file sets configuration parameters for the MINIX kernel, FS, and PM.
  11  * It is divided up into two main sections.  The first section contains
  12  * user-settable parameters.  In the second section, various internal system
  13  * parameters are set based on the user-settable parameters.
  14  *
  15  * Parts of config.h have been moved to sys_config.h, which can be included
  16  * by other include files that wish to get at the configuration data, but
  17  * don't want to pollute the users namespace. Some editable values have
  18  * gone there.
  19  *
  20  */
  21
  22 #include <minix/sys_config.h>
  23
  24 /* Number of slots in the process table for non-kernel processes. The number
  25  * of system processes defines how many processes with special privileges
  26  * there can be. User processes share the same properties and count for one.
  27  *
  28  * These can be changed in sys_config.h.
  29  */
  30 #define NR_PROCS          _NR_PROCS
  31 #define NR_SYS_PROCS      _NR_SYS_PROCS
  32 #define NR_SYS_CHUNKS     BITMAP_CHUNKS(NR_SYS_PROCS)
  33
  34 /* Number of controller tasks (/dev/cN device classes). */
  35 #define NR_CTRLRS          2
  36
  37 /* DMA_SECTORS may be increased to speed up DMA based drivers. */
  38 #define DMA_SECTORS        1    /* DMA buffer size (must be >= 1) */
  39
  40 /* NR_CONS, NR_RS_LINES, and NR_PTYS determine the number of terminals the
  41  * system can handle.
  42  */
  43 #define NR_CONS            4    /* # system consoles (1 to 8) */
  44 #define NR_RS_LINES        4    /* # rs232 terminals (0 to 3) */
  45 #define NR_PTYS            32   /* # pseudo terminals (0 to 64) */
  46
  47 /* This feature enable the counting of system calls in PM and FS */
  48 #define ENABLE_SYSCALL_STATS    0
  49
  50 /* Max. number of I/O ranges that can be assigned to a process */
  51 #define NR_IO_RANGE     64
  52
  53 /* Max. number of device memory ranges that can be assigned to a process */
  54 #define NR_MEM_RANGE    20
  55
  56 /* Max. number of IRQs that can be assigned to a process */
  57 #define NR_IRQ  16
  58
  59 /* Scheduling priorities. Values must start at zero (highest
  60  * priority) and increment.
  61  */
  62 #define NR_SCHED_QUEUES   16    /* MUST equal minimum priority + 1 */
  63 #define TASK_Q             0    /* highest, used for kernel tasks */
  64 #define MAX_USER_Q         0    /* highest priority for user processes */
  65 #define USER_Q            ((MIN_USER_Q - MAX_USER_Q) / 2 + MAX_USER_Q) /* default
  66                                                 (should correspond to nice 0) */
  67 #define MIN_USER_Q        (NR_SCHED_QUEUES - 1) /* minimum priority for user
  68                                                    processes */
  69 /* default scheduling quanta */
  70 #define USER_QUANTUM 200
  71
  72 /* defualt user process cpu */
  73 #define USER_DEFAULT_CPU        -1 /* use the default cpu or do not change the
  74                                       current one */
  75
  76 /*===========================================================================*
  77  *      There are no user-settable parameters after this line                *
  78  *===========================================================================*/
  79 /* Set the FP_FORMAT type based on the machine selected, either hw or sw    */
  80 #define FP_NONE  _FP_NONE       /* no floating point support                */
  81 #define FP_IEEE  _FP_IEEE       /* conform IEEE floating point standard     */
  82
  83 /* _MINIX_FP_FORMAT is defined in sys_config.h. */
  84 #define FP_FORMAT       _MINIX_FP_FORMAT
  85
  86 /* _ASKDEV and _FASTLOAD are defined in sys_config.h. */
  87 #define ASKDEV _ASKDEV
  88 #define FASTLOAD _FASTLOAD
  89
  90 /* Enable or disable system profiling. */
  91 #define SPROFILE          0    /* statistical profiling */
  92 #define CPROFILE          0    /* call profiling */
  93
  94 /* PCI configuration parameters */
  95 #define NR_PCIBUS 40
  96 #define NR_PCIDEV 50
  97
  98 #endif /* _CONFIG_H */