2005-07-14 17:26:26 +02:00
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#ifndef CONFIG_H
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#define CONFIG_H
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/* This file defines the kernel configuration. It allows to set sizes of some
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* kernel buffers and to enable or disable debugging code, timing features,
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* and individual kernel calls.
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*
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2005-08-04 11:26:36 +02:00
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* Changes:
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* Jul 11, 2005 Created. (Jorrit N. Herder)
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2005-07-14 17:26:26 +02:00
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*/
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/* In embedded and sensor applications, not all the kernel calls may be
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* needed. In this section you can specify which kernel calls are needed
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* and which are not. The code for unneeded kernel calls is not included in
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* the system binary, making it smaller. If you are not sure, it is best
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* to keep all kernel calls enabled.
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*/
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2005-09-11 18:44:06 +02:00
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#define USE_FORK 1 /* fork a new process */
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#define USE_NEWMAP 1 /* set a new memory map */
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#define USE_EXEC 1 /* update process after execute */
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#define USE_EXIT 1 /* clean up after process exit */
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#define USE_TRACE 1 /* process information and tracing */
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#define USE_GETKSIG 1 /* retrieve pending kernel signals */
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#define USE_ENDKSIG 1 /* finish pending kernel signals */
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#define USE_KILL 1 /* send a signal to a process */
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#define USE_SIGSEND 1 /* send POSIX-style signal */
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#define USE_SIGRETURN 1 /* sys_sigreturn(proc_nr, ctxt_ptr, flags) */
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#define USE_ABORT 1 /* shut down MINIX */
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#define USE_GETINFO 1 /* retrieve a copy of kernel data */
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#define USE_TIMES 1 /* get process and system time info */
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#define USE_SETALARM 1 /* schedule a synchronous alarm */
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#define USE_DEVIO 1 /* read or write a single I/O port */
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#define USE_VDEVIO 1 /* process vector with I/O requests */
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#define USE_SDEVIO 1 /* perform I/O request on a buffer */
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#define USE_IRQCTL 1 /* set an interrupt policy */
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#define USE_SEGCTL 1 /* set up a remote segment */
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#define USE_PRIVCTL 1 /* system privileges control */
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#define USE_NICE 1 /* change scheduling priority */
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#define USE_UMAP 1 /* map virtual to physical address */
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#define USE_VIRCOPY 1 /* copy using virtual addressing */
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#define USE_VIRVCOPY 1 /* vector with virtual copy requests */
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#define USE_PHYSCOPY 1 /* copy using physical addressing */
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#define USE_PHYSVCOPY 1 /* vector with physical copy requests */
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#define USE_MEMSET 1 /* write char to a given memory area */
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2005-07-14 17:26:26 +02:00
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/* Length of program names stored in the process table. This is only used
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* for the debugging dumps that can be generated with the IS server. The PM
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* server keeps its own copy of the program name.
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*/
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2005-09-11 18:44:06 +02:00
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#define P_NAME_LEN 8
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2005-07-14 17:26:26 +02:00
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/* Kernel diagnostics are written to a circular buffer. After each message,
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* a system server is notified and a copy of the buffer can be retrieved to
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* display the message. The buffers size can safely be reduced.
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*/
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2005-07-20 17:25:38 +02:00
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#define KMESS_BUF_SIZE 256
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2005-07-14 17:26:26 +02:00
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/* Buffer to gather randomness. This is used to generate a random stream by
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* the MEMORY driver when reading from /dev/random.
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*/
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2005-07-27 16:32:16 +02:00
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#define RANDOM_ELEMENTS 32
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2005-07-14 17:26:26 +02:00
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/* This section contains defines for valuable system resources that are used
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* by device drivers. The number of elements of the vectors is determined by
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* the maximum needed by any given driver. The number of interrupt hooks may
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* be incremented on systems with many device drivers.
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*/
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#define NR_IRQ_HOOKS 16 /* number of interrupt hooks */
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#define VDEVIO_BUF_SIZE 64 /* max elements per VDEVIO request */
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#define VCOPY_VEC_SIZE 16 /* max elements per VCOPY request */
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2005-07-19 14:21:36 +02:00
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/* How many bytes for the kernel stack. Space allocated in mpx.s. */
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#define K_STACK_BYTES 1024
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2005-07-14 17:26:26 +02:00
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Split of architecture-dependent and -independent functions for i386,
mainly in the kernel and headers. This split based on work by
Ingmar Alting <iaalting@cs.vu.nl> done for his Minix PowerPC architecture
port.
. kernel does not program the interrupt controller directly, do any
other architecture-dependent operations, or contain assembly any more,
but uses architecture-dependent functions in arch/$(ARCH)/.
. architecture-dependent constants and types defined in arch/$(ARCH)/include.
. <ibm/portio.h> moved to <minix/portio.h>, as they have become, for now,
architecture-independent functions.
. int86, sdevio, readbios, and iopenable are now i386-specific kernel calls
and live in arch/i386/do_* now.
. i386 arch now supports even less 86 code; e.g. mpx86.s and klib86.s have
gone, and 'machine.protected' is gone (and always taken to be 1 in i386).
If 86 support is to return, it should be a new architecture.
. prototypes for the architecture-dependent functions defined in
kernel/arch/$(ARCH)/*.c but used in kernel/ are in kernel/proto.h
. /etc/make.conf included in makefiles and shell scripts that need to
know the building architecture; it defines ARCH=<arch>, currently only
i386.
. some basic per-architecture build support outside of the kernel (lib)
. in clock.c, only dequeue a process if it was ready
. fixes for new include files
files deleted:
. mpx/klib.s - only for choosing between mpx/klib86 and -386
. klib86.s - only for 86
i386-specific files files moved (or arch-dependent stuff moved) to arch/i386/:
. mpx386.s (entry point)
. klib386.s
. sconst.h
. exception.c
. protect.c
. protect.h
. i8269.c
2006-12-22 16:22:27 +01:00
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#define K_PARAM_SIZE 512
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2005-07-14 17:26:26 +02:00
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/* This section allows to enable kernel debugging and timing functionality.
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* For normal operation all options should be disabled.
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*/
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2005-09-11 18:44:06 +02:00
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#define DEBUG_SCHED_CHECK 0 /* sanity check of scheduling queues */
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#define DEBUG_TIME_LOCKS 0 /* measure time spent in locks */
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2005-07-14 17:26:26 +02:00
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#endif /* CONFIG_H */
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