52 lines
1.4 KiB
C
Executable File
52 lines
1.4 KiB
C
Executable File
/*
|
|
** Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
|
|
** Distributed under the terms of the NewOS License.
|
|
*/
|
|
#ifndef _KERNEL_VM_PRIV_H
|
|
#define _KERNEL_VM_PRIV_H
|
|
|
|
#include <vm.h>
|
|
#include <khash.h>
|
|
|
|
/* should make these scale with the system */
|
|
#define DEFAULT_KERNEL_WORKING_SET 1024
|
|
#define DEFAULT_WORKING_SET 256
|
|
#define DEFAULT_MAX_WORKING_SET 65536
|
|
#define DEFAULT_MIN_WORKING_SET 64
|
|
|
|
#define WORKING_SET_INCREMENT 32
|
|
#define WORKING_SET_DECREMENT 32
|
|
|
|
#define PAGE_DAEMON_INTERVAL 500000
|
|
#define PAGE_SCAN_QUANTUM 500
|
|
#define WORKING_SET_ADJUST_INTERVAL 5000000
|
|
#define MAX_FAULTS_PER_SECOND 100
|
|
#define MIN_FAULTS_PER_SECOND 10
|
|
|
|
#define WRITE_COUNT 1024
|
|
#define READ_COUNT 1
|
|
|
|
// page attributes
|
|
#define PAGE_MODIFIED 0x04
|
|
#define PAGE_ACCESSED 0x08
|
|
#define PAGE_PRESENT 0x10
|
|
|
|
// Should only be used by vm internals
|
|
int vm_page_fault(addr address, addr fault_address, bool is_write, bool is_user, addr *newip);
|
|
void vm_increase_max_commit(addr delta);
|
|
int vm_daemon_init(void);
|
|
|
|
// used by the page daemon to walk the list of address spaces
|
|
int vm_aspace_walk_start(struct hash_iterator *i);
|
|
vm_address_space *vm_aspace_walk_next(struct hash_iterator *i);
|
|
|
|
// get some data about the number of pages in the system
|
|
addr vm_page_num_pages(void);
|
|
addr vm_page_num_free_pages(void);
|
|
|
|
// allocates memory from the ka structure
|
|
addr vm_alloc_from_ka_struct(kernel_args *ka, unsigned int size, int lock);
|
|
|
|
#endif
|
|
|