mirror of
https://review.haiku-os.org/haiku
synced 2025-01-24 15:24:50 +01:00
99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
|
/*
|
||
|
|
* Copyright 2002-2010, Haiku. All rights reserved.
|
||
|
|
* Distributed under the terms of the MIT License.
|
||
|
|
*
|
||
|
|
* Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
|
||
|
|
* Distributed under the terms of the NewOS License.
|
||
|
|
*/
|
||
|
|
#ifndef KERNEL_VM_VM_TRANSLATION_MAP_H
|
||
|
|
#define KERNEL_VM_VM_TRANSLATION_MAP_H
|
||
|
|
|
||
|
|
|
||
|
|
#include <kernel.h>
|
||
|
|
#include <lock.h>
|
||
|
|
|
||
|
|
|
||
|
|
struct kernel_args;
|
||
|
|
|
||
|
|
|
||
|
|
struct VMTranslationMap {
|
||
|
|
VMTranslationMap();
|
||
|
|
virtual ~VMTranslationMap();
|
||
|
|
|
||
|
|
virtual status_t InitPostSem() = 0;
|
||
|
|
|
||
|
|
virtual status_t Lock() = 0;
|
||
|
|
virtual status_t Unlock() = 0;
|
||
|
|
|
||
|
|
virtual addr_t MappedSize() const = 0;
|
||
|
|
virtual size_t MaxPagesNeededToMap(addr_t start,
|
||
|
|
addr_t end) const = 0;
|
||
|
|
|
||
|
|
virtual status_t Map(addr_t virtualAddress,
|
||
|
|
addr_t physicalAddress,
|
||
|
|
uint32 attributes) = 0;
|
||
|
|
virtual status_t Unmap(addr_t start, addr_t end) = 0;
|
||
|
|
|
||
|
|
virtual status_t Query(addr_t virtualAddress,
|
||
|
|
addr_t* _physicalAddress,
|
||
|
|
uint32* _flags) = 0;
|
||
|
|
virtual status_t QueryInterrupt(addr_t virtualAddress,
|
||
|
|
addr_t* _physicalAddress,
|
||
|
|
uint32* _flags) = 0;
|
||
|
|
|
||
|
|
virtual status_t Protect(addr_t base, addr_t top,
|
||
|
|
uint32 attributes) = 0;
|
||
|
|
virtual status_t ClearFlags(addr_t virtualAddress,
|
||
|
|
uint32 flags) = 0;
|
||
|
|
|
||
|
|
virtual void Flush() = 0;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
recursive_lock fLock;
|
||
|
|
int32 fMapCount;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct VMPhysicalPageMapper {
|
||
|
|
VMPhysicalPageMapper();
|
||
|
|
virtual ~VMPhysicalPageMapper();
|
||
|
|
|
||
|
|
// get/put virtual address for physical page -- will be usuable on all CPUs
|
||
|
|
// (usually more expensive than the *_current_cpu() versions)
|
||
|
|
virtual status_t GetPage(addr_t physicalAddress,
|
||
|
|
addr_t* _virtualAddress,
|
||
|
|
void** _handle) = 0;
|
||
|
|
virtual status_t PutPage(addr_t virtualAddress,
|
||
|
|
void* handle) = 0;
|
||
|
|
|
||
|
|
// get/put virtual address for physical page -- thread must be pinned the
|
||
|
|
// whole time
|
||
|
|
virtual status_t GetPageCurrentCPU(
|
||
|
|
addr_t physicalAddress,
|
||
|
|
addr_t* _virtualAddress,
|
||
|
|
void** _handle) = 0;
|
||
|
|
virtual status_t PutPageCurrentCPU(addr_t virtualAddress,
|
||
|
|
void* _handle) = 0;
|
||
|
|
|
||
|
|
// get/put virtual address for physical in KDL
|
||
|
|
virtual status_t GetPageDebug(addr_t physicalAddress,
|
||
|
|
addr_t* _virtualAddress,
|
||
|
|
void** _handle) = 0;
|
||
|
|
virtual status_t PutPageDebug(addr_t virtualAddress,
|
||
|
|
void* handle) = 0;
|
||
|
|
|
||
|
|
// memory operations on pages
|
||
|
|
virtual status_t MemsetPhysical(addr_t address, int value,
|
||
|
|
size_t length) = 0;
|
||
|
|
virtual status_t MemcpyFromPhysical(void* to, addr_t from,
|
||
|
|
size_t length, bool user) = 0;
|
||
|
|
virtual status_t MemcpyToPhysical(addr_t to, const void* from,
|
||
|
|
size_t length, bool user) = 0;
|
||
|
|
virtual void MemcpyPhysicalPage(addr_t to, addr_t from) = 0;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#include <arch/vm_translation_map.h>
|
||
|
|
|
||
|
|
#endif /* KERNEL_VM_VM_TRANSLATION_MAP_H */
|