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align to pagesize

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This commit is contained in:
SirSydom 2022-02-14 16:08:32 +01:00
parent 7fae86e3c2
commit d34e7767c8
3 changed files with 12 additions and 14 deletions
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17
src/knx/memory.cpp
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@ -25,8 +25,7 @@ void Memory::readMemory()
printHex("RESTORED ", flashStart, _metadataSize);
//uint16_t metadataBlockSize = alignToPageSize(_metadataSize);
uint16_t metadataBlockSize = _metadataSize;
uint16_t metadataBlockSize = alignToPageSize(_metadataSize);
_freeList = new MemoryBlock(flashStart + metadataBlockSize, flashSize - metadataBlockSize);
@ -175,7 +174,7 @@ void Memory::addSaveRestore(TableObject* obj)
uint8_t* Memory::allocMemory(size_t size)
{
// always allocate aligned to pagesize
//size = alignToPageSize(size);
size = alignToPageSize(size);
MemoryBlock* freeBlock = _freeList;
MemoryBlock* blockToUse = nullptr;
@ -375,12 +374,12 @@ void Memory::addToFreeList(MemoryBlock* block)
}
}
//uint16_t Memory::alignToPageSize(size_t size)
//{
// size_t pageSize = _platform.flashPageSize();
// // pagesize should be a multiply of two
// return (size + pageSize - 1) & (-1*pageSize);
//}
uint16_t Memory::alignToPageSize(size_t size)
{
size_t pageSize = _platform.flashPageSize();
// pagesize should be a multiply of two
return (size + pageSize - 1) & (-1*pageSize);
}
MemoryBlock* Memory::findBlockInList(MemoryBlock* head, uint8_t* address)
{

2
src/knx/memory.h
View File

@ -46,7 +46,7 @@ public:
void addToUsedList(MemoryBlock* block);
void removeFromUsedList(MemoryBlock* block);
void addToFreeList(MemoryBlock* block);
// uint16_t alignToPageSize(size_t size);
uint16_t alignToPageSize(size_t size);
MemoryBlock* removeFromList(MemoryBlock* head, MemoryBlock* item);
MemoryBlock* findBlockInList(MemoryBlock* head, uint8_t* address);
void addNewUsedBlock(uint8_t* address, size_t size);

7
src/knx/platform.h
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@ -55,17 +55,16 @@ class Platform
virtual void commitNonVolatileMemory();
// address is relative to start of nonvolatile memory
virtual uint32_t writeNonVolatileMemory(uint32_t relativeAddress, uint8_t* buffer, size_t size);
// size of one flash page in bytes
virtual size_t flashPageSize();
NvMemoryType NonVolatileMemoryType();
void NonVolatileMemoryType(NvMemoryType type);
protected:
// Flash memory
// size of one EraseBlock in pages
virtual size_t flashEraseBlockSize();
// size of one flash page in bytes
virtual size_t flashPageSize();
// start of user flash aligned to start of an erase block
virtual uint8_t* userFlashStart();
// size of the user flash in EraseBlocks