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minix/kernel/glo.h

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Initial revision
2005-04-21 16:53:53 +02:00
/* Global variables used in the kernel. This file contains the declarations;
* storage space for the variables is allocated in table.c, because EXTERN is
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
* defined as extern unless the _TABLE definition is seen. We rely on the
* compiler's default initialization (0) for several global variables.
Initial revision
2005-04-21 16:53:53 +02:00
*/
#ifdef _TABLE
#undef EXTERN
#define EXTERN
#endif
Added args to lock() and unlock() to tell them apart, for use when lock timing is enabled in minix/config.h. Added phys_zero() routine to klib386.s that zeroes a range of memory, and added corresponding system call.
2005-06-01 11:37:52 +02:00
#include <minix/config.h>
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
/* Variables relating to shutting down MINIX. */
EXTERN char kernel_exception; /* TRUE after system exceptions */
EXTERN char shutting_down; /* TRUE if shutting down */
Initial revision
2005-04-21 16:53:53 +02:00
EXTERN struct proc *shutdown_process; /* process awaiting shutdown of */
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
EXTERN timer_t shutdown_timer; /* timer for watchdog function */
Initial revision
2005-04-21 16:53:53 +02:00
*** empty log message ***
2005-04-29 17:36:43 +02:00
/* Kernel information structures. This groups vital kernel information. */
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
EXTERN phys_bytes aout; /* address of a.out headers */
EXTERN struct kinfo kinfo; /* kernel information for users */
EXTERN struct machine machine; /* machine information for users */
EXTERN struct kmessages kmess; /* diagnostic messages in kernel */
EXTERN struct randomness krandom; /* gather kernel random information */
*** empty log message ***
2005-04-29 17:36:43 +02:00
EXTERN struct memory mem[NR_MEMS]; /* base and size of chunks of memory */
Initial revision
2005-04-21 16:53:53 +02:00
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
/* Process scheduling information and the kernel reentry count. */
Initial revision
2005-04-21 16:53:53 +02:00
EXTERN struct proc *proc_ptr; /* pointer to currently running process */
Fixed some minor issues with the NOTIFY call.
2005-05-24 16:35:58 +02:00
EXTERN struct proc *next_ptr; /* pointer to next process to run */
New NOTIFY system call! Queued at kernel. Duplicate messages (with same source and type) are overwritten with newer flags/ arguments. The interface from within the kernel is lock_notify(). User processes can make a system call with notify(). NOTIFY fully replaces the old notification mechanism.
2005-05-24 12:06:17 +02:00
EXTERN char k_reenter; /* kernel reentry count (entry count less 1) */
EXTERN unsigned lost_ticks; /* clock ticks counted outside clock task */
Initial revision
2005-04-21 16:53:53 +02:00
Fixed clear_proc(): properly release resources (IRQ hooks, notify buffers); Cleaned up comments in proc.c (old code still present for comparison);
2005-05-30 13:05:42 +02:00
/* Declare buffer space and a bit map for notification messages. */
EXTERN struct notification notify_buffer[NR_NOTIFY_BUFS];
EXTERN bitchunk_t notify_bitmap[BITMAP_CHUNKS(NR_NOTIFY_BUFS)];
Initial revision
2005-04-21 16:53:53 +02:00
#if (CHIP == INTEL)
/* Interrupt related variables. */
*** empty log message ***
2005-05-02 16:30:04 +02:00
EXTERN irq_hook_t irq_hooks[NR_IRQ_HOOKS]; /* hooks for general use */
EXTERN irq_hook_t *irq_handlers[NR_IRQ_VECTORS];/* list of IRQ handlers */
Initial revision
2005-04-21 16:53:53 +02:00
EXTERN int irq_actids[NR_IRQ_VECTORS]; /* IRQ ID bits active */
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
EXTERN int irq_use; /* map of all in-use irq's */
Initial revision
2005-04-21 16:53:53 +02:00
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
/* Data structure to store lock() timing data. */
Added args to lock() and unlock() to tell them apart, for use when lock timing is enabled in minix/config.h. Added phys_zero() routine to klib386.s that zeroes a range of memory, and added corresponding system call.
2005-06-01 11:37:52 +02:00
#if ENABLE_LOCK_TIMING
EXTERN struct lock_timedata timingdata[TIMING_CATEGORIES];
#endif
Initial revision
2005-04-21 16:53:53 +02:00
/* Miscellaneous. */
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
EXTERN reg_t mon_ss, mon_sp; /* boot monitor stack */
EXTERN int mon_return; /* true if we can return to monitor */
Initial revision
2005-04-21 16:53:53 +02:00
/* Variables that are initialized elsewhere are just extern here. */
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
extern struct system_image image[]; /* system image processes */
extern char *t_stack[]; /* task stack space */
extern struct segdesc_s gdt[]; /* global descriptor table */
Initial revision
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EXTERN _PROTOTYPE( void (*level0_func), (void) );
#endif /* (CHIP == INTEL) */
#if (CHIP == M68000)
/* M68000 specific variables go here. */
#endif
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