kernel/config.h

   1 #ifndef CONFIG_H
   2 #define CONFIG_H
   3
   4 /* This file defines the kernel configuration. It allows to set sizes of some
   5  * kernel buffers and to enable or disable debugging code, timing features,
   6  * and individual kernel calls.
   7  *
   8  * Changes:
   9  *   Jul 11, 2005       Created.  (Jorrit N. Herder)
  10  */
  11
  12 /* In embedded and sensor applications, not all the kernel calls may be
  13  * needed. In this section you can specify which kernel calls are needed
  14  * and which are not. The code for unneeded kernel calls is not included in
  15  * the system binary, making it smaller. If you are not sure, it is best
  16  * to keep all kernel calls enabled.
  17  */
  18 #define USE_FORK           1    /* fork a new process */
  19 #define USE_NEWMAP         1    /* set a new memory map */
  20 #define USE_EXEC           1    /* update process after execute */
  21 #define USE_CLEAR          1    /* clean up after process exit */
  22 #define USE_EXIT           1    /* a system process wants to exit */
  23 #define USE_GETKSIG        1    /* retrieve pending kernel signals */
  24 #define USE_ENDKSIG        1    /* finish pending kernel signals */
  25 #define USE_KILL           1    /* send a signal to a process */
  26 #define USE_SIGSEND        1    /* send POSIX-style signal */
  27 #define USE_SIGRETURN      1    /* sys_sigreturn(proc_nr, ctxt_ptr, flags) */
  28 #define USE_ABORT          1    /* shut down MINIX */
  29 #define USE_GETINFO        1    /* retrieve a copy of kernel data */
  30 #define USE_TIMES          1    /* get process and system time info */
  31 #define USE_SETALARM       1    /* schedule a synchronous alarm */
  32 #define USE_VTIMER         1    /* set or retrieve a process-virtual timer */
  33 #define USE_DEVIO          1    /* read or write a single I/O port */
  34 #define USE_VDEVIO         1    /* process vector with I/O requests */
  35 #define USE_SDEVIO         1    /* perform I/O request on a buffer */
  36 #define USE_IRQCTL         1    /* set an interrupt policy */
  37 #define USE_PRIVCTL        1    /* system privileges control */
  38 #define USE_UMAP           1    /* map virtual to physical address */
  39 #define USE_UMAP_REMOTE    1    /* sys_umap on behalf of another process */
  40 #define USE_VUMAP          1    /* vectored virtual to physical mapping */
  41 #define USE_VIRCOPY        1    /* copy using virtual addressing */
  42 #define USE_PHYSCOPY       1    /* copy using physical addressing */
  43 #define USE_MEMSET         1    /* write char to a given memory area */
  44 #define USE_RUNCTL         1    /* control stop flags of a process */
  45
  46 /* This section contains defines for valuable system resources that are used
  47  * by device drivers. The number of elements of the vectors is determined by
  48  * the maximum needed by any given driver. The number of interrupt hooks may
  49  * be incremented on systems with many device drivers.
  50  */
  51 #ifndef USE_APIC
  52 #define NR_IRQ_HOOKS      16            /* number of interrupt hooks */
  53 #else
  54 #define NR_IRQ_HOOKS      64            /* number of interrupt hooks */
  55 #endif
  56 #define VDEVIO_BUF_SIZE   64            /* max elements per VDEVIO request */
  57
  58 #define K_PARAM_SIZE     512
  59
  60 #endif /* CONFIG_H */
  61