3b36b30fef
parts, too. Fixed a potential overflow. * The generic physical page mapper reserves the virtual address range for the IO space now, so that noone can interfere until an area has been created. The location of the IO space is no longer fixed; it didn't look to me like it was necessary for x86, and we definitely need to be flexible for PPC. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15855 a95241bf-73f2-0310-859d-f6bbb57e9c96
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/*
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* Copyright 2002-2005, Axel Dörfler, axeld@pinc-software.de.
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* Distributed under the terms of the MIT License.
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*
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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_PAGE_H
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#define _KERNEL_VM_PAGE_H
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#include <vm.h>
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struct kernel_args;
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#ifdef __cplusplus
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extern "C" {
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#endif
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status_t vm_page_init(struct kernel_args *args);
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status_t vm_page_init_post_area(struct kernel_args *args);
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status_t vm_page_init_post_thread(struct kernel_args *args);
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addr_t vm_alloc_virtual_from_kernel_args(kernel_args *ka, size_t size);
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status_t vm_mark_page_inuse(addr_t page);
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status_t vm_mark_page_range_inuse(addr_t startPage, addr_t length);
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status_t vm_page_set_state(vm_page *page, int state);
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// get some data about the number of pages in the system
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size_t vm_page_num_pages(void);
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size_t vm_page_num_free_pages(void);
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status_t vm_page_write_modified(vm_cache *cache);
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vm_page *vm_page_allocate_page(int state);
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status_t vm_page_allocate_pages(int pageState, vm_page **pages, uint32 numPages);
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vm_page *vm_page_allocate_page_run(int state, addr_t length);
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vm_page *vm_page_allocate_specific_page(addr_t page_num, int state);
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vm_page *vm_lookup_page(addr_t page_num);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _KERNEL_VM_PAGE_H */
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