c1be1e0761
implemented for any architecture yet. * vm_set_area_memory_type(): Call VMTranslationMap::ProtectArea() to change the memory type for the already mapped pages. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36574 a95241bf-73f2-0310-859d-f6bbb57e9c96
140 lines
3.9 KiB
C++
140 lines
3.9 KiB
C++
/*
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* Copyright 2002-2010, Haiku. 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_VM_TRANSLATION_MAP_H
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#define KERNEL_VM_VM_TRANSLATION_MAP_H
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#include <kernel.h>
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#include <lock.h>
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#include <vm/VMArea.h>
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struct kernel_args;
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struct vm_page_reservation;
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struct VMTranslationMap {
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VMTranslationMap();
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virtual ~VMTranslationMap();
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virtual status_t InitPostSem() = 0;
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virtual bool Lock() = 0;
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virtual void Unlock() = 0;
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virtual addr_t MappedSize() const = 0;
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virtual size_t MaxPagesNeededToMap(addr_t start,
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addr_t end) const = 0;
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virtual status_t Map(addr_t virtualAddress,
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addr_t physicalAddress, uint32 attributes,
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uint32 memoryType,
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vm_page_reservation* reservation) = 0;
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virtual status_t Unmap(addr_t start, addr_t end) = 0;
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// map not locked
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virtual status_t UnmapPage(VMArea* area, addr_t address,
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bool updatePageQueue) = 0;
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virtual void UnmapPages(VMArea* area, addr_t base,
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size_t size, bool updatePageQueue);
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virtual void UnmapArea(VMArea* area,
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bool deletingAddressSpace,
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bool ignoreTopCachePageFlags);
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virtual status_t Query(addr_t virtualAddress,
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addr_t* _physicalAddress,
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uint32* _flags) = 0;
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virtual status_t QueryInterrupt(addr_t virtualAddress,
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addr_t* _physicalAddress,
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uint32* _flags) = 0;
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virtual status_t Protect(addr_t base, addr_t top,
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uint32 attributes, uint32 memoryType) = 0;
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status_t ProtectPage(VMArea* area, addr_t address,
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uint32 attributes);
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status_t ProtectArea(VMArea* area,
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uint32 attributes);
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virtual status_t ClearFlags(addr_t virtualAddress,
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uint32 flags) = 0;
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virtual bool ClearAccessedAndModified(
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VMArea* area, addr_t address,
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bool unmapIfUnaccessed,
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bool& _modified) = 0;
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virtual void Flush() = 0;
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protected:
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recursive_lock fLock;
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int32 fMapCount;
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};
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struct VMPhysicalPageMapper {
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VMPhysicalPageMapper();
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virtual ~VMPhysicalPageMapper();
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// get/put virtual address for physical page -- will be usuable on all CPUs
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// (usually more expensive than the *_current_cpu() versions)
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virtual status_t GetPage(addr_t physicalAddress,
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addr_t* _virtualAddress,
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void** _handle) = 0;
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virtual status_t PutPage(addr_t virtualAddress,
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void* handle) = 0;
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// get/put virtual address for physical page -- thread must be pinned the
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// whole time
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virtual status_t GetPageCurrentCPU(
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addr_t physicalAddress,
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addr_t* _virtualAddress,
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void** _handle) = 0;
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virtual status_t PutPageCurrentCPU(addr_t virtualAddress,
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void* _handle) = 0;
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// get/put virtual address for physical in KDL
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virtual status_t GetPageDebug(addr_t physicalAddress,
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addr_t* _virtualAddress,
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void** _handle) = 0;
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virtual status_t PutPageDebug(addr_t virtualAddress,
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void* handle) = 0;
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// memory operations on pages
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virtual status_t MemsetPhysical(addr_t address, int value,
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size_t length) = 0;
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virtual status_t MemcpyFromPhysical(void* to, addr_t from,
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size_t length, bool user) = 0;
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virtual status_t MemcpyToPhysical(addr_t to, const void* from,
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size_t length, bool user) = 0;
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virtual void MemcpyPhysicalPage(addr_t to, addr_t from) = 0;
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};
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inline status_t
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VMTranslationMap::ProtectPage(VMArea* area, addr_t address, uint32 attributes)
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{
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return Protect(address, address + B_PAGE_SIZE - 1, attributes,
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area->MemoryType());
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}
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#include <vm/VMArea.h>
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inline status_t
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VMTranslationMap::ProtectArea(VMArea* area, uint32 attributes)
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{
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return Protect(area->Base(), area->Base() + area->Size() - 1, attributes,
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area->MemoryType());
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}
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#include <arch/vm_translation_map.h>
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#endif /* KERNEL_VM_VM_TRANSLATION_MAP_H */
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