From 610f91d87152cbe48d3054fcf437d8239da6ef35 Mon Sep 17 00:00:00 2001
From: Amlal <amlalelmahrouss@icloud.com>
Date: Sat, 21 Dec 2024 21:59:13 +0100
Subject: IMP: :boom: Breaking changes some checks are needed to be done.

Signed-off-by: Amlal <amlalelmahrouss@icloud.com>
---
 dev/Kernel/src/Pmm.cc | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 dev/Kernel/src/Pmm.cc

(limited to 'dev/Kernel/src/Pmm.cc')

diff --git a/dev/Kernel/src/Pmm.cc b/dev/Kernel/src/Pmm.cc
new file mode 100644
index 00000000..f83e6d6e
--- /dev/null
+++ b/dev/Kernel/src/Pmm.cc
@@ -0,0 +1,98 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, TQ B.V, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/DebugOutput.h>
+#include <NewKit/Pmm.h>
+
+#if defined(__ZKA_ARM64__)
+#include <HALKit/ARM64/Processor.h>
+#endif // defined(__ZKA_ARM64__)
+
+#if defined(__ZKA_AMD64__)
+#include <HALKit/AMD64/Processor.h>
+#endif // defined(__ZKA_AMD64__)
+
+namespace Kernel
+{
+	/***********************************************************************************/
+	/// @brief Pmm constructor.
+	/***********************************************************************************/
+	Pmm::Pmm()
+		: fPageMgr()
+	{
+		kcout << "[PMM] Allocate PageMemoryMgr";
+	}
+
+	Pmm::~Pmm() = default;
+
+	/***********************************************************************************/
+	/// @param 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 = fPageMgr.Leak().Request(user, readWrite, false, kPageSize);
+
+		if (pt.fPresent)
+		{
+			kcout << "[PMM]: Allocation failed.\r";
+			return {};
+		}
+
+		return Ref<PTEWrapper>(pt);
+	}
+
+	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
-- 
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