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/*
* FILE: config.h
* AUTHOR: kma
* DESCR: tunable kernel parameters
*/
#pragma once
/* Kernel and user header (via symlink) */
/*
* kernel configuration parameters
*/
#define DEFAULT_STACK_SIZE_PAGES 16
#define DEFAULT_STACK_SIZE (DEFAULT_STACK_SIZE_PAGES << PAGE_SHIFT)
#define TICK_MSECS 10 /* msecs between clock interrupts */
/*
* Memory-management-related:
*/
/*
* Finds fraction of available page frames that will be dedicated to kmem
* the rest are given to the vm system. This is currently unused.
*/
#define KMEM_FRAC(x) (((x) >> 2) + ((x) >> 3)) /* 37.5%-ish */
/* pframe/mobj-system-related: */
#define PF_HASH_SIZE 17 /* Number of buckets in pn/mobj->pframe hash. This is currently unused. */
/*
* filesystem/vfs configuration parameters
*/
#define MAXPATHLEN 1024 /* maximum size of a pathname */
#define MAX_FILES 1024 /* max number of files */
#define MAX_VFS 8 /* max # of vfses */
#define MAX_VNODES 1024 /* max number of in-core vnodes */
#define NAME_LEN 28 /* maximum directory entry length */
#define NFILES 32 /* maximum number of open files */
/* Note: if rootfs is ramfs, this is completely ignored */
#define VFS_ROOTFS_DEV "disk0" /* device containing root filesystem */
/* root filesystem type - either "ramfs" or "s5fs" */
#ifdef __S5FS__
#define VFS_ROOTFS_TYPE "s5fs"
#else
#define VFS_ROOTFS_TYPE "ramfs"
#endif
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