2014-04-08 16:15:46 -07:00
|
|
|
// Copyright 2014 Citra Emulator Project
|
2014-12-16 21:38:14 -08:00
|
|
|
// Licensed under GPLv2 or any later version
|
2014-04-08 16:15:46 -07:00
|
|
|
// Refer to the license.txt file included.
|
|
|
|
|
|
|
|
#pragma once
|
2013-09-05 15:33:46 -07:00
|
|
|
|
2018-11-06 12:00:47 -08:00
|
|
|
#include <optional>
|
|
|
|
#include <boost/icl/interval_set.hpp>
|
2014-04-08 17:15:08 -07:00
|
|
|
#include "common/common_types.h"
|
2015-08-05 17:26:52 -07:00
|
|
|
|
2015-07-09 18:52:15 -07:00
|
|
|
namespace Kernel {
|
2015-08-05 17:26:52 -07:00
|
|
|
|
2018-10-25 18:07:15 -07:00
|
|
|
struct AddressMapping;
|
2015-07-09 18:52:15 -07:00
|
|
|
class VMManager;
|
2015-08-05 17:26:52 -07:00
|
|
|
|
|
|
|
struct MemoryRegionInfo {
|
|
|
|
u32 base; // Not an address, but offset from start of FCRAM
|
|
|
|
u32 size;
|
2015-11-26 19:00:16 -08:00
|
|
|
u32 used;
|
2015-08-05 17:26:52 -07:00
|
|
|
|
2018-11-06 12:00:47 -08:00
|
|
|
// The domain of the interval_set are offsets from start of FCRAM
|
|
|
|
using IntervalSet = boost::icl::interval_set<u32>;
|
|
|
|
using Interval = IntervalSet::interval_type;
|
|
|
|
|
|
|
|
IntervalSet free_blocks;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Reset the allocator state
|
|
|
|
* @param base The base offset the beginning of FCRAM.
|
|
|
|
* @param size The region size this allocator manages
|
|
|
|
*/
|
|
|
|
void Reset(u32 base, u32 size);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Allocates memory from the heap.
|
|
|
|
* @param size The size of memory to allocate.
|
|
|
|
* @returns The set of blocks that make up the allocation request. Empty set if there is no
|
|
|
|
* enough space.
|
|
|
|
*/
|
|
|
|
IntervalSet HeapAllocate(u32 size);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Allocates memory from the linear heap with specific address and size.
|
|
|
|
* @param offset the address offset to the beginning of FCRAM.
|
|
|
|
* @param size size of the memory to allocate.
|
|
|
|
* @returns true if the allocation is successful. false if the requested region is not free.
|
|
|
|
*/
|
|
|
|
bool LinearAllocate(u32 offset, u32 size);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Allocates memory from the linear heap with only size specified.
|
|
|
|
* @param size size of the memory to allocate.
|
|
|
|
* @returns the address offset to the beginning of FCRAM; null if there is no enough space
|
|
|
|
*/
|
|
|
|
std::optional<u32> LinearAllocate(u32 size);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Frees one segment of memory. The memory must have been allocated as heap or linear heap.
|
|
|
|
* @param offset the region address offset to the beginning of FCRAM.
|
|
|
|
* @param size the size of the region to free.
|
|
|
|
*/
|
|
|
|
void Free(u32 offset, u32 size);
|
2015-08-05 17:26:52 -07:00
|
|
|
};
|
|
|
|
|
2017-05-05 23:11:06 -07:00
|
|
|
} // namespace Kernel
|