a3e9996e9d
only if memory becomes tight, and then the range is used from end to start. This is useful to reserve heap address ranges. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12675 a95241bf-73f2-0310-859d-f6bbb57e9c96
102 lines
4.1 KiB
C
102 lines
4.1 KiB
C
/*
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* Copyright 2002-2005, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
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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_H
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#define _KERNEL_VM_H
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#include <kernel.h>
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#include <vm_types.h>
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#include <arch/vm_translation_map.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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//void vm_dump_areas(vm_address_space *aspace);
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status_t vm_init(kernel_args *args);
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status_t vm_init_post_sem(struct kernel_args *args);
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status_t vm_init_post_thread(struct kernel_args *args);
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status_t vm_aspace_init(void);
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status_t vm_aspace_init_post_sem(void);
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void vm_free_kernel_args(kernel_args *args);
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void vm_free_unused_boot_loader_range(addr_t start, addr_t end);
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void vm_delete_aspace(vm_address_space *aspace);
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status_t vm_create_aspace(const char *name, team_id id, addr_t base, addr_t size,
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bool kernel, vm_address_space **_aspace);
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status_t vm_delete_areas(struct vm_address_space *aspace);
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vm_address_space *vm_get_kernel_aspace(void);
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aspace_id vm_get_kernel_aspace_id(void);
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vm_address_space *vm_get_current_user_aspace(void);
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aspace_id vm_get_current_user_aspace_id(void);
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vm_address_space *vm_get_aspace_by_id(aspace_id aid);
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void vm_put_aspace(vm_address_space *aspace);
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#define vm_aspace_swap(aspace) arch_vm_aspace_swap(aspace)
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// private kernel only extension (should be moved somewhere else):
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struct team;
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area_id create_area_etc(struct team *team, const char *name, void **address,
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uint32 addressSpec, uint32 size, uint32 lock, uint32 protection);
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status_t delete_area_etc(struct team *team, area_id area);
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status_t vm_unreserve_address_range(aspace_id aid, void *address, addr_t size);
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status_t vm_reserve_address_range(aspace_id aid, void **_address,
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uint32 addressSpec, addr_t size, uint32 flags);
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area_id vm_create_anonymous_area(aspace_id aid, const char *name, void **address,
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uint32 addressSpec, addr_t size, uint32 wiring, uint32 protection);
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area_id vm_map_physical_memory(aspace_id aid, const char *name, void **address,
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uint32 addressSpec, addr_t size, uint32 protection, addr_t phys_addr);
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area_id vm_map_file(aspace_id aid, const char *name, void **address,
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uint32 addressSpec, addr_t size, uint32 protection, uint32 mapping,
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const char *path, off_t offset);
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area_id vm_create_null_area(aspace_id aid, const char *name, void **address,
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uint32 addressSpec, addr_t size);
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area_id vm_copy_area(aspace_id addressSpaceID, const char *name, void **_address,
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uint32 addressSpec, uint32 protection, area_id sourceID);
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area_id vm_clone_area(aspace_id aid, const char *name, void **address,
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uint32 addressSpec, uint32 protection, uint32 mapping,
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area_id sourceArea);
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status_t vm_delete_area(aspace_id aid, area_id id);
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status_t vm_create_vnode_cache(void *vnode, vm_cache_ref **_cacheRef);
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status_t vm_get_page_mapping(aspace_id aid, addr_t vaddr, addr_t *paddr);
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status_t vm_get_physical_page(addr_t paddr, addr_t *vaddr, int flags);
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status_t vm_put_physical_page(addr_t vaddr);
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area_id _user_create_area(const char *name, void **address, uint32 addressSpec,
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size_t size, uint32 lock, uint32 protection);
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status_t _user_delete_area(area_id area);
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area_id _user_vm_map_file(const char *uname, void **uaddress, int addr_type,
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addr_t size, int lock, int mapping, const char *upath, off_t offset);
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area_id _user_area_for(void *address);
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area_id _user_find_area(const char *name);
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status_t _user_get_area_info(area_id area, area_info *info);
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status_t _user_get_next_area_info(team_id team, int32 *cookie, area_info *info);
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status_t _user_resize_area(area_id area, size_t newSize);
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status_t _user_transfer_area(area_id area, void **_address, uint32 addressSpec,
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team_id target);
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status_t _user_set_area_protection(area_id area, uint32 newProtection);
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area_id _user_clone_area(const char *name, void **_address, uint32 addressSpec,
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uint32 protection, area_id sourceArea);
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// to protect code regions with interrupts turned on
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void permit_page_faults(void);
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void forbid_page_faults(void);
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// XXX remove later
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void vm_test(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _KERNEL_VM_H */
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