c9df0d11c8
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7885 a95241bf-73f2-0310-859d-f6bbb57e9c96
54 lines
1.5 KiB
C
Executable File
54 lines
1.5 KiB
C
Executable File
/*
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** Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
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** Distributed under the terms of the NewOS License.
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*/
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#ifndef _KERNEL_VM_PRIV_H
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#define _KERNEL_VM_PRIV_H
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#include <vm.h>
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#include <khash.h>
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/* should make these scale with the system */
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#define DEFAULT_KERNEL_WORKING_SET 1024
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#define DEFAULT_WORKING_SET 256
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#define DEFAULT_MAX_WORKING_SET 65536
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#define DEFAULT_MIN_WORKING_SET 64
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#define WORKING_SET_INCREMENT 32
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#define WORKING_SET_DECREMENT 32
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#define PAGE_DAEMON_INTERVAL 500000
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#define PAGE_SCAN_QUANTUM 500
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#define WORKING_SET_ADJUST_INTERVAL 5000000
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#define MAX_FAULTS_PER_SECOND 100
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#define MIN_FAULTS_PER_SECOND 10
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#define WRITE_COUNT 1024
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#define READ_COUNT 1
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#define RESERVED_REGION_ID -1
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// page attributes (in addition to B_READ_AREA etc.)
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#define PAGE_MODIFIED 64
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#define PAGE_ACCESSED 128
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#define PAGE_PRESENT 256
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// Should only be used by vm internals
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int vm_page_fault(addr_t address, addr_t fault_address, bool is_write, bool is_user, addr_t *newip);
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void vm_increase_max_commit(addr_t delta);
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int vm_daemon_init(void);
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// used by the page daemon to walk the list of address spaces
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int vm_aspace_walk_start(struct hash_iterator *i);
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vm_address_space *vm_aspace_walk_next(struct hash_iterator *i);
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// get some data about the number of pages in the system
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addr_t vm_page_num_pages(void);
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addr_t vm_page_num_free_pages(void);
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// allocates memory from the ka structure
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addr_t vm_alloc_from_ka_struct(kernel_args *ka, unsigned int size, int lock);
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#endif /* _KERNEL_VM_PRIV_H */
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