6f77685609
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
64 lines
1.9 KiB
C
Executable File
64 lines
1.9 KiB
C
Executable File
/* General macros and constants used by the kernel. */
|
|
#ifndef CONST_H
|
|
#define CONST_H
|
|
|
|
#include <minix/config.h>
|
|
#include <minix/bitmap.h>
|
|
|
|
#include "config.h"
|
|
|
|
/* Map a process number to a privilege structure id. */
|
|
#define s_nr_to_id(n) (NR_TASKS + (n) + 1)
|
|
|
|
/* Translate a pointer to a field in a structure to a pointer to the structure
|
|
* itself. So it translates '&struct_ptr->field' back to 'struct_ptr'.
|
|
*/
|
|
#define structof(type, field, ptr) \
|
|
((type *) (((char *) (ptr)) - offsetof(type, field)))
|
|
|
|
/* Translate an endpoint number to a process number, return success. */
|
|
#define isokendpt(e,p) isokendpt_d((e),(p),0)
|
|
#define okendpt(e,p) isokendpt_d((e),(p),1)
|
|
|
|
/* Constants used in virtual_copy(). Values must be 0 and 1, respectively. */
|
|
#define _SRC_ 0
|
|
#define _DST_ 1
|
|
|
|
/* Number of random sources */
|
|
#define RANDOM_SOURCES 16
|
|
|
|
#define get_sys_bit(map,bit) \
|
|
( MAP_CHUNK(map.chunk,bit) & (1 << CHUNK_OFFSET(bit) )
|
|
#define get_sys_bits(map,bit) \
|
|
( MAP_CHUNK(map.chunk,bit) )
|
|
#define set_sys_bit(map,bit) \
|
|
( MAP_CHUNK(map.chunk,bit) |= (1 << CHUNK_OFFSET(bit) )
|
|
#define unset_sys_bit(map,bit) \
|
|
( MAP_CHUNK(map.chunk,bit) &= ~(1 << CHUNK_OFFSET(bit) )
|
|
#define NR_SYS_CHUNKS BITMAP_CHUNKS(NR_SYS_PROCS)
|
|
|
|
#if DEBUG_LOCK_CHECK
|
|
#define reallock(c, v) { if(intr_disabled()) { kinfo.relocking++; } else { intr_disable(); } }
|
|
#else
|
|
#define reallock(c, v) intr_disable()
|
|
#endif
|
|
|
|
#define realunlock(c) intr_enable()
|
|
|
|
#if DEBUG_TIME_LOCKS
|
|
#define lock(c, v) do { reallock(c, v); locktimestart(c, v); } while(0)
|
|
#define unlock(c) do { locktimeend(c); realunlock(c); } while(0)
|
|
#else
|
|
/* Disable/ enable hardware interrupts. The parameters of lock() and unlock()
|
|
* are used when debugging is enabled. See debug.h for more information.
|
|
*/
|
|
#define lock(c, v) reallock(c, v)
|
|
#define unlock(c) realunlock(c)
|
|
#endif
|
|
|
|
/* args to intr_init() */
|
|
#define INTS_ORIG 0 /* restore interrupts */
|
|
#define INTS_MINIX 1 /* initialize interrupts for minix */
|
|
|
|
#endif /* CONST_H */
|