92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
#ifndef GLO_H
|
|
#define GLO_H
|
|
|
|
/* Global variables used in the kernel. This file contains the declarations;
|
|
* storage space for the variables is allocated in table.c, because EXTERN is
|
|
* defined as extern unless the _TABLE definition is seen. We rely on the
|
|
* compiler's default initialization (0) for several global variables.
|
|
*/
|
|
#ifdef _TABLE
|
|
#undef EXTERN
|
|
#define EXTERN
|
|
#endif
|
|
|
|
#include <minix/config.h>
|
|
#include <minix/ipcconst.h>
|
|
#include <machine/archtypes.h>
|
|
#include "archconst.h"
|
|
#include "config.h"
|
|
#include "debug.h"
|
|
|
|
/* Kernel information structures. This groups vital kernel information. */
|
|
extern struct kinfo kinfo; /* kernel information for users */
|
|
extern struct machine machine; /* machine information for users */
|
|
extern struct kmessages kmessages; /* diagnostic messages in kernel */
|
|
extern struct loadinfo loadinfo; /* status of load average */
|
|
extern struct minix_kerninfo minix_kerninfo;
|
|
|
|
EXTERN struct k_randomness krandom; /* gather kernel random information */
|
|
|
|
EXTERN vir_bytes minix_kerninfo_user;
|
|
|
|
#define kmess kmessages
|
|
#define kloadinfo loadinfo
|
|
|
|
/* Process scheduling information and the kernel reentry count. */
|
|
EXTERN struct proc *vmrequest; /* first process on vmrequest queue */
|
|
EXTERN unsigned lost_ticks; /* clock ticks counted outside clock task */
|
|
EXTERN char *ipc_call_names[IPCNO_HIGHEST+1]; /* human-readable call names */
|
|
EXTERN struct proc *kbill_kcall; /* process that made kernel call */
|
|
EXTERN struct proc *kbill_ipc; /* process that invoked ipc */
|
|
|
|
/* Interrupt related variables. */
|
|
EXTERN irq_hook_t irq_hooks[NR_IRQ_HOOKS]; /* hooks for general use */
|
|
EXTERN int irq_actids[NR_IRQ_VECTORS]; /* IRQ ID bits active */
|
|
EXTERN int irq_use; /* map of all in-use irq's */
|
|
EXTERN u32_t system_hz; /* HZ value */
|
|
|
|
/* Miscellaneous. */
|
|
EXTERN time_t boottime;
|
|
EXTERN int verboseboot; /* verbose boot, init'ed in cstart */
|
|
|
|
#if DEBUG_TRACE
|
|
EXTERN int verboseflags;
|
|
#endif
|
|
|
|
#ifdef USE_APIC
|
|
EXTERN int config_no_apic; /* optionally turn off apic */
|
|
EXTERN int config_apic_timer_x; /* apic timer slowdown factor */
|
|
#endif
|
|
|
|
EXTERN u64_t cpu_hz[CONFIG_MAX_CPUS];
|
|
|
|
#define cpu_set_freq(cpu, freq) do {cpu_hz[cpu] = freq;} while (0)
|
|
#define cpu_get_freq(cpu) cpu_hz[cpu]
|
|
|
|
#ifdef CONFIG_SMP
|
|
EXTERN int config_no_smp; /* optionally turn off SMP */
|
|
#endif
|
|
|
|
/* VM */
|
|
EXTERN int vm_running;
|
|
EXTERN int catch_pagefaults;
|
|
EXTERN int kernel_may_alloc;
|
|
|
|
/* Variables that are initialized elsewhere are just extern here. */
|
|
extern struct boot_image image[NR_BOOT_PROCS]; /* system image processes */
|
|
|
|
EXTERN volatile int serial_debug_active;
|
|
|
|
EXTERN struct cpu_info cpu_info[CONFIG_MAX_CPUS];
|
|
|
|
/* BKL stats */
|
|
EXTERN u64_t kernel_ticks[CONFIG_MAX_CPUS];
|
|
EXTERN u64_t bkl_ticks[CONFIG_MAX_CPUS];
|
|
EXTERN unsigned bkl_tries[CONFIG_MAX_CPUS];
|
|
EXTERN unsigned bkl_succ[CONFIG_MAX_CPUS];
|
|
|
|
/* Feature flags */
|
|
EXTERN int minix_feature_flags;
|
|
|
|
#endif /* GLO_H */
|