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Kernel: Move VM-related files into Kernel/VM/.

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Also break MemoryManager.{cpp,h} into one file per class.
This commit is contained in:
Andreas Kling 2019-04-03 15:13:07 +02:00
parent 39fd81174e
commit b9738fa8ac
21 changed files with 630 additions and 575 deletions
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42
Kernel/VM/PhysicalPage.cpp Normal file
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#include <Kernel/VM/PhysicalPage.h>
#include <Kernel/VM/MemoryManager.h>
#include <Kernel/kmalloc.h>
Retained<PhysicalPage> PhysicalPage::create_eternal(PhysicalAddress paddr, bool supervisor)
{
void* slot = kmalloc_eternal(sizeof(PhysicalPage));
new (slot) PhysicalPage(paddr, supervisor);
return adopt(*(PhysicalPage*)slot);
}
Retained<PhysicalPage> PhysicalPage::create(PhysicalAddress paddr, bool supervisor)
{
void* slot = kmalloc(sizeof(PhysicalPage));
new (slot) PhysicalPage(paddr, supervisor, false);
return adopt(*(PhysicalPage*)slot);
}
PhysicalPage::PhysicalPage(PhysicalAddress paddr, bool supervisor, bool may_return_to_freelist)
: m_may_return_to_freelist(may_return_to_freelist)
, m_supervisor(supervisor)
, m_paddr(paddr)
{
if (supervisor)
++MemoryManager::s_super_physical_pages_in_existence;
else
++MemoryManager::s_user_physical_pages_in_existence;
}
void PhysicalPage::return_to_freelist()
{
ASSERT((paddr().get() & ~PAGE_MASK) == 0);
InterruptDisabler disabler;
m_retain_count = 1;
if (m_supervisor)
MM.m_free_supervisor_physical_pages.append(adopt(*this));
else
MM.m_free_physical_pages.append(adopt(*this));
#ifdef MM_DEBUG
dbgprintf("MM: P%x released to freelist\n", m_paddr.get());
#endif
}