#ifndef _CONFIG_H #define _CONFIG_H /* Minix release and version numbers. */ #define OS_RELEASE "3" #define OS_VERSION "2.1" /* This file sets configuration parameters for the MINIX kernel, FS, and PM. * It is divided up into two main sections. The first section contains * user-settable parameters. In the second section, various internal system * parameters are set based on the user-settable parameters. * * Parts of config.h have been moved to sys_config.h, which can be included * by other include files that wish to get at the configuration data, but * don't want to pollute the users namespace. Some editable values have * gone there. * */ #include /* Number of slots in the process table for non-kernel processes. The number * of system processes defines how many processes with special privileges * there can be. User processes share the same properties and count for one. * * These can be changed in sys_config.h. */ #define NR_PROCS _NR_PROCS #define NR_SYS_PROCS _NR_SYS_PROCS #define NR_SYS_CHUNKS BITMAP_CHUNKS(NR_SYS_PROCS) /* Number of controller tasks (/dev/cN device classes). */ #define NR_CTRLRS 2 /* DMA_SECTORS may be increased to speed up DMA based drivers. */ #define DMA_SECTORS 1 /* DMA buffer size (must be >= 1) */ /* Which processes should receive diagnostics from the kernel and system? * Directly sending it to TTY only displays the output. Sending it to the * log driver will cause the diagnostics to be buffered and displayed. * Messages are sent by src/lib/sysutil/kputc.c to these processes, in * the order of this array, which must be terminated by NONE. This is used * by drivers and servers that printf(). * The kernel does this for its own kprintf() in kernel/utility.c, also using * this array, but a slightly different mechanism. */ #define OUTPUT_PROCS_ARRAY { TTY_PROC_NR, LOG_PROC_NR, NONE } /* NR_CONS, NR_RS_LINES, and NR_PTYS determine the number of terminals the * system can handle. */ #define NR_CONS 4 /* # system consoles (1 to 8) */ #define NR_RS_LINES 4 /* # rs232 terminals (0 to 3) */ #define NR_PTYS 32 /* # pseudo terminals (0 to 64) */ /* This feature enable the counting of system calls in PM and FS */ #define ENABLE_SYSCALL_STATS 0 /* Max. number of I/O ranges that can be assigned to a process */ #define NR_IO_RANGE 64 /* Max. number of device memory ranges that can be assigned to a process */ #define NR_MEM_RANGE 20 /* Max. number of IRQs that can be assigned to a process */ #define NR_IRQ 8 /* Scheduling priorities. Values must start at zero (highest * priority) and increment. */ #define NR_SCHED_QUEUES 16 /* MUST equal minimum priority + 1 */ #define TASK_Q 0 /* highest, used for kernel tasks */ #define MAX_USER_Q 0 /* highest priority for user processes */ #define USER_Q ((MIN_USER_Q - MAX_USER_Q) / 2 + MAX_USER_Q) /* default (should correspond to nice 0) */ #define MIN_USER_Q (NR_SCHED_QUEUES - 1) /* minimum priority for user processes */ /* default scheduling quanta */ #define USER_QUANTUM 200 /* defualt user process cpu */ #define USER_DEFAULT_CPU -1 /* use the default cpu or do not change the current one */ /*===========================================================================* * There are no user-settable parameters after this line * *===========================================================================*/ /* Set the FP_FORMAT type based on the machine selected, either hw or sw */ #define FP_NONE _FP_NONE /* no floating point support */ #define FP_IEEE _FP_IEEE /* conform IEEE floating point standard */ /* _MINIX_FP_FORMAT is defined in sys_config.h. */ #define FP_FORMAT _MINIX_FP_FORMAT /* _ASKDEV and _FASTLOAD are defined in sys_config.h. */ #define ASKDEV _ASKDEV #define FASTLOAD _FASTLOAD /* Enable or disable system profiling. */ #define SPROFILE 0 /* statistical profiling */ #define CPROFILE 0 /* call profiling */ /* PCI configuration parameters */ #define NR_PCIBUS 40 #define NR_PCIDEV 50 #endif /* _CONFIG_H */