Fennix/Kernel
1
0
Fork 0
mirror of https://github.com/Fennix-Project/Kernel.git synced 2025-07-05 12:29:19 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Memory related code optimization

Browse Source
This commit is contained in:
Alex
2022-12-05 00:48:41 +02:00
parent f34278891b
commit 2d1c42fbcd
9 changed files with 123 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
Core/Memory/PhysicalMemoryManager.cpp
View File

@ -118,13 +118,13 @@ namespace Memory
void Physical::FreePage(void *Address)
{
SmartLock(this->MemoryLock);
if (Address == nullptr)
if (unlikely(Address == nullptr))
{
warn("Null pointer passed to FreePage.");
return;
}
uint64_t Index = (uint64_t)Address / PAGE_SIZE;
if (PageBitmap[Index] == false)
if (unlikely(PageBitmap[Index] == false))
return;
if (PageBitmap.Set(Index, false))
@ -138,7 +138,7 @@ namespace Memory
void Physical::FreePages(void *Address, uint64_t Count)
{
if (Address == nullptr || Count == 0)
if (unlikely(Address == nullptr || Count == 0))
{
warn("%s%s passed to FreePages.", Address == nullptr ? "Null pointer" : "", Count == 0 ? "Zero count" : "");
return;
@ -150,11 +150,11 @@ namespace Memory
void Physical::LockPage(void *Address)
{
if (Address == nullptr)
if (unlikely(Address == nullptr))
warn("Trying to lock null address.");
uint64_t Index = (uint64_t)Address / PAGE_SIZE;
if (PageBitmap[Index] == true)
if (unlikely(PageBitmap[Index] == true))
return;
if (PageBitmap.Set(Index, true))
{
@ -165,7 +165,7 @@ namespace Memory
void Physical::LockPages(void *Address, uint64_t PageCount)
{
if (Address == nullptr || PageCount == 0)
if (unlikely(Address == nullptr || PageCount == 0))
warn("Trying to lock %s%s.", Address ? "null address" : "", PageCount ? "0 pages" : "");
for (uint64_t i = 0; i < PageCount; i++)
@ -174,11 +174,11 @@ namespace Memory
void Physical::ReservePage(void *Address)
{
if (Address == nullptr)
if (unlikely(Address == nullptr))
warn("Trying to reserve null address.");
uint64_t Index = (uint64_t)Address / PAGE_SIZE;
if (PageBitmap[Index] == true)
if (unlikely(PageBitmap[Index] == true))
return;
if (PageBitmap.Set(Index, true))
@ -190,7 +190,7 @@ namespace Memory
void Physical::ReservePages(void *Address, uint64_t PageCount)
{
if (Address == nullptr || PageCount == 0)
if (unlikely(Address == nullptr || PageCount == 0))
warn("Trying to reserve %s%s.", Address ? "null address" : "", PageCount ? "0 pages" : "");
for (uint64_t t = 0; t < PageCount; t++)
@ -199,11 +199,11 @@ namespace Memory
void Physical::UnreservePage(void *Address)
{
if (Address == nullptr)
if (unlikely(Address == nullptr))
warn("Trying to unreserve null address.");
uint64_t Index = (uint64_t)Address / PAGE_SIZE;
if (PageBitmap[Index] == false)
if (unlikely(PageBitmap[Index] == false))
return;
if (PageBitmap.Set(Index, false))
@ -217,7 +217,7 @@ namespace Memory
void Physical::UnreservePages(void *Address, uint64_t PageCount)
{
if (Address == nullptr || PageCount == 0)
if (unlikely(Address == nullptr || PageCount == 0))
warn("Trying to unreserve %s%s.", Address ? "null address" : "", PageCount ? "0 pages" : "");
for (uint64_t t = 0; t < PageCount; t++)
@ -253,7 +253,7 @@ namespace Memory
CPU::Stop();
}
uint64_t BitmapSize = ALIGN_UP((MemorySize / PAGE_SIZE) / 8, PAGE_SIZE);
uint64_t BitmapSize = (MemorySize / PAGE_SIZE) / 8 + 1;
trace("Initializing Bitmap at %llp-%llp (%lld Bytes)",
LargestFreeMemorySegment,
(void *)((uint64_t)LargestFreeMemorySegment + BitmapSize),
@ -264,13 +264,11 @@ namespace Memory
*(uint8_t *)(PageBitmap.Buffer + i) = 0;
trace("Reserving pages...");
this->ReservePages(0, MemorySize / PAGE_SIZE + 1);
trace("Unreserve usable pages...");
for (uint64_t i = 0; i < Info->Memory.Entries; i++)
if (Info->Memory.Entry[i].Type == Usable)
this->UnreservePages((void *)Info->Memory.Entry[i].BaseAddress, Info->Memory.Entry[i].Length / PAGE_SIZE + 1);
if (Info->Memory.Entry[i].Type != Usable)
this->ReservePages((void *)Info->Memory.Entry[i].BaseAddress, Info->Memory.Entry[i].Length / PAGE_SIZE + 1);
trace("Locking bitmap pages...");
this->ReservePages(0, 0x100); // Reserve between 0 and 0x100000.
this->ReservePages(0, 0x100);
this->LockPages(PageBitmap.Buffer, PageBitmap.Size / PAGE_SIZE + 1);
}