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authorAmlal EL Mahrouss <amlalelmahrouss@icloud.com>2024-08-15 18:35:34 +0200
committerAmlal EL Mahrouss <amlalelmahrouss@icloud.com>2024-08-15 18:35:34 +0200
commitf3d931aa7cfaf96baef8383b59a8938779541ee7 (patch)
treefdb9fc51badb3dbd03e46ab0766a49d9522e13e2 /dev/Kernel/Sources/Pmm.cxx
parent86640816e8b1d3595365f1fcc8a2a9e61fb40ff1 (diff)
[IMP] Moved source code into dev/ folder.
Signed-off-by: Amlal EL Mahrouss <amlalelmahrouss@icloud.com>
Diffstat (limited to 'dev/Kernel/Sources/Pmm.cxx')
-rw-r--r--dev/Kernel/Sources/Pmm.cxx96
1 files changed, 96 insertions, 0 deletions
diff --git a/dev/Kernel/Sources/Pmm.cxx b/dev/Kernel/Sources/Pmm.cxx
new file mode 100644
index 00000000..4a511c30
--- /dev/null
+++ b/dev/Kernel/Sources/Pmm.cxx
@@ -0,0 +1,96 @@
+/* -------------------------------------------
+
+ Copyright ZKA Technologies.
+
+------------------------------------------- */
+
+#include <KernelKit/DebugOutput.hxx>
+#include <NewKit/Pmm.hxx>
+
+#if defined(__NEWOS_ARM64__)
+#include <HALKit/ARM64/Processor.hxx>
+#endif // defined(__NEWOS_ARM64__)
+
+#if defined(__NEWOS_AMD64__)
+#include <HALKit/AMD64/Processor.hxx>
+#endif // defined(__NEWOS_AMD64__)
+
+namespace Kernel
+{
+ /// @brief Pmm constructor.
+ Pmm::Pmm()
+ : fPageManager()
+ {
+ kcout << "[PMM] Allocate PageMemoryManager";
+ }
+
+ Pmm::~Pmm() = default;
+
+ /* If this returns Null pointer, enter emergency mode */
+ /// @param user is this a user page?
+ /// @param readWrite is it r/w?
+ Ref<PTEWrapper> Pmm::RequestPage(Boolean user, Boolean readWrite)
+ {
+ PTEWrapper pt = fPageManager.Leak().Request(user, readWrite, false, kPTESize);
+
+ if (pt.fPresent)
+ {
+ kcout << "[PMM]: Allocation was successful.\r";
+ return Ref<PTEWrapper>(pt);
+ }
+
+ kcout << "[PMM]: Allocation failed.\r";
+
+ return {};
+ }
+
+ Boolean Pmm::FreePage(Ref<PTEWrapper> PageRef)
+ {
+ if (!PageRef)
+ return false;
+
+ PageRef.Leak().fPresent = false;
+
+ return true;
+ }
+
+ Boolean Pmm::TogglePresent(Ref<PTEWrapper> PageRef, Boolean Enable)
+ {
+ if (!PageRef)
+ return false;
+
+ PageRef.Leak().fPresent = Enable;
+
+ return true;
+ }
+
+ Boolean Pmm::ToggleUser(Ref<PTEWrapper> PageRef, Boolean Enable)
+ {
+ if (!PageRef)
+ return false;
+
+ PageRef.Leak().fRw = Enable;
+
+ return true;
+ }
+
+ Boolean Pmm::ToggleRw(Ref<PTEWrapper> PageRef, Boolean Enable)
+ {
+ if (!PageRef)
+ return false;
+
+ PageRef.Leak().fRw = Enable;
+
+ return true;
+ }
+
+ Boolean Pmm::ToggleShare(Ref<PTEWrapper> PageRef, Boolean Enable)
+ {
+ if (!PageRef)
+ return false;
+
+ PageRef.Leak().fShareable = Enable;
+
+ return true;
+ }
+} // namespace Kernel