150 lines
4.4 KiB
C
Executable File
150 lines
4.4 KiB
C
Executable File
#ifndef _TYPE_H
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#define _TYPE_H
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#ifndef _MINIX_SYS_CONFIG_H
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#include <minix/sys_config.h>
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#endif
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#ifndef _TYPES_H
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#include <sys/types.h>
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#endif
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/* Type definitions. */
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typedef unsigned int vir_clicks; /* virtual addr/length in clicks */
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typedef unsigned long phys_bytes; /* physical addr/length in bytes */
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typedef unsigned int phys_clicks; /* physical addr/length in clicks */
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#if (_MINIX_CHIP == _CHIP_INTEL)
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typedef unsigned int vir_bytes; /* virtual addresses and lengths in bytes */
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#endif
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#if (_MINIX_CHIP == _CHIP_M68000)
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typedef unsigned long vir_bytes;/* virtual addresses and lengths in bytes */
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#endif
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#if (_MINIX_CHIP == _CHIP_SPARC)
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typedef unsigned long vir_bytes;/* virtual addresses and lengths in bytes */
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#endif
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/* Memory map for local text, stack, data segments. */
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struct mem_map {
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vir_clicks mem_vir; /* virtual address */
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phys_clicks mem_phys; /* physical address */
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vir_clicks mem_len; /* length */
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};
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/* Memory map for remote memory areas, e.g., for the RAM disk. */
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struct far_mem {
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int in_use; /* entry in use, unless zero */
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phys_clicks mem_phys; /* physical address */
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vir_clicks mem_len; /* length */
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};
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/* Structure for virtual copying by means of a vector with requests. */
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struct vir_addr {
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int proc_nr;
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int segment;
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vir_bytes offset;
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};
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/* Memory allocation by PM. */
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struct hole {
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struct hole *h_next; /* pointer to next entry on the list */
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phys_clicks h_base; /* where does the hole begin? */
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phys_clicks h_len; /* how big is the hole? */
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};
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/* Memory info from PM. */
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struct pm_mem_info {
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struct hole pmi_holes[_NR_HOLES];/* memory (un)allocations */
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u32_t pmi_hi_watermark; /* highest ever-used click + 1 */
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};
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#define phys_cp_req vir_cp_req
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struct vir_cp_req {
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struct vir_addr src;
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struct vir_addr dst;
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phys_bytes count;
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};
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typedef struct {
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vir_bytes iov_addr; /* address of an I/O buffer */
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vir_bytes iov_size; /* sizeof an I/O buffer */
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} iovec_t;
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/* PM passes the address of a structure of this type to KERNEL when
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* sys_sendsig() is invoked as part of the signal catching mechanism.
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* The structure contain all the information that KERNEL needs to build
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* the signal stack.
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*/
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struct sigmsg {
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int sm_signo; /* signal number being caught */
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unsigned long sm_mask; /* mask to restore when handler returns */
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vir_bytes sm_sighandler; /* address of handler */
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vir_bytes sm_sigreturn; /* address of _sigreturn in C library */
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vir_bytes sm_stkptr; /* user stack pointer */
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};
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/* This is used to obtain system information through SYS_GETINFO. */
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struct kinfo {
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phys_bytes code_base; /* base of kernel code */
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phys_bytes code_size;
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phys_bytes data_base; /* base of kernel data */
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phys_bytes data_size;
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vir_bytes proc_addr; /* virtual address of process table */
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phys_bytes kmem_base; /* kernel memory layout (/dev/kmem) */
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phys_bytes kmem_size;
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phys_bytes bootdev_base; /* boot device from boot image (/dev/boot) */
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phys_bytes bootdev_size;
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phys_bytes ramdev_base; /* boot device from boot image (/dev/boot) */
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phys_bytes ramdev_size;
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phys_bytes params_base; /* parameters passed by boot monitor */
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phys_bytes params_size;
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int nr_procs; /* number of user processes */
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int nr_tasks; /* number of kernel tasks */
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char release[6]; /* kernel release number */
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char version[6]; /* kernel version number */
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int relocking; /* relocking check (for debugging) */
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};
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/* Load data accounted every this no. of seconds. */
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#define _LOAD_UNIT_SECS 6
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/* Load data history is kept for this long. */
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#define _LOAD_HISTORY_MINUTES 15
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#define _LOAD_HISTORY_SECONDS (60*_LOAD_HISTORY_MINUTES)
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/* We need this many slots to store the load history. */
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#define _LOAD_HISTORY (_LOAD_HISTORY_SECONDS/_LOAD_UNIT_SECS)
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/* Runnable processes and other load-average information. */
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struct loadinfo {
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u16_t procs_enqueued; /* current no. of runnable processes */
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u16_t proc_load_history[_LOAD_HISTORY]; /* history of proc_s_cur */
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u16_t proc_last_slot;
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clock_t last_clock;
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};
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struct machine {
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int pc_at;
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int ps_mca;
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int processor;
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int protected;
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int vdu_ega;
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int vdu_vga;
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};
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struct io_range
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{
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unsigned ior_base; /* Lowest I/O port in range */
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unsigned ior_limit; /* Highest I/O port in range */
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};
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struct mem_range
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{
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phys_bytes mr_base; /* Lowest memory address in range */
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phys_bytes mr_limit; /* Highest memory address in range */
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};
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#endif /* _TYPE_H */
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