RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 22:08:10 +00:00
Code Issues Activity Actions

Kernel: Merge PurgeableVMObject into AnonymousVMObject

Browse source 
This implements memory commitments and lazy-allocation of committed
memory.
This commit is contained in:
Tom 2020-09-05 15:52:14 -06:00 • committed by Andreas Kling
parent b2a52f6208
commit 476f17b3f1
35 changed files with 937 additions and 564 deletions
Download patch file Download diff file Expand all files Collapse all files

4
Kernel/VM/MemoryManager.h
View file

@ -32,6 +32,7 @@
#include <Kernel/Arch/i386/CPU.h>
#include <Kernel/Forward.h>
#include <Kernel/SpinLock.h>
#include <Kernel/VM/AllocationStrategy.h>
#include <Kernel/VM/PhysicalPage.h>
#include <Kernel/VM/Region.h>
#include <Kernel/VM/VMObject.h>
@ -83,6 +84,7 @@ class MemoryManager {
friend class PageDirectory;
friend class PhysicalPage;
friend class PhysicalRegion;
friend class AnonymousVMObject;
friend class Region;
friend class VMObject;
friend OwnPtr<KBuffer> procfs$mm(InodeIdentifier);
@ -120,7 +122,7 @@ public:
void deallocate_supervisor_physical_page(const PhysicalPage&);
OwnPtr<Region> allocate_contiguous_kernel_region(size_t, const StringView& name, u8 access, bool user_accessible = false, bool cacheable = true);
OwnPtr<Region> allocate_kernel_region(size_t, const StringView& name, u8 access, bool user_accessible = false, bool should_commit = true, bool cacheable = true);
OwnPtr<Region> allocate_kernel_region(size_t, const StringView& name, u8 access, bool user_accessible = false, AllocationStrategy strategy = AllocationStrategy::Reserve, bool cacheable = true);
OwnPtr<Region> allocate_kernel_region(PhysicalAddress, size_t, const StringView& name, u8 access, bool user_accessible = false, bool cacheable = true);
OwnPtr<Region> allocate_kernel_region_identity(PhysicalAddress, size_t, const StringView& name, u8 access, bool user_accessible = false, bool cacheable = true);
OwnPtr<Region> allocate_kernel_region_with_vmobject(VMObject&, size_t, const StringView& name, u8 access, bool user_accessible = false, bool cacheable = true);