ADD: Open version, with important changes kept out.

Signed-off-by: Amlal <amlal.elmahrouss@icloud.com>

6 files changed, 80 insertions, 0 deletions

diff --git a/dev/Kernel/HALKit/RISCV/.keep b/dev/Kernel/HALKit/RISCV/.keep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/RISCV/.keep
diff --git a/dev/Kernel/HALKit/RISCV/AP.h b/dev/Kernel/HALKit/RISCV/AP.h
new file mode 100644
index 00000000..05de4727
--- /dev/null
+++ b/dev/Kernel/HALKit/RISCV/AP.h
@@ -0,0 +1,36 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+	File: AP.h
+	Purpose: RISC-V hardware threads.
+
+	Revision History:
+
+	30/01/24: Added file (amlel)
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Defines.h>
+
+namespace Kernel
+{
+	typedef Int64 hal_ap_kind;
+
+	typedef struct HAL_HARDWARE_THREAD
+	{
+		Kernel::UIntPtr fStartAddress;
+		Kernel::UInt8	fPrivleged : 1;
+		Kernel::UInt32	fPageMemoryFlags;
+		hal_ap_kind		fIdentNumber;
+	} HAL_HARDWARE_THREAD;
+
+	/// @brief Set PC to specific hart.
+	/// @param hart the hart
+	/// @param epc the pc.
+	/// @return
+	EXTERN_C Kernel::Void hal_set_pc_to_hart(HAL_HARDWARE_THREAD* hart, Kernel::VoidPtr epc);
+
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/RISCV/APM/.gitkeep b/dev/Kernel/HALKit/RISCV/APM/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/RISCV/APM/.gitkeep
diff --git a/dev/Kernel/HALKit/RISCV/HalAP.cc b/dev/Kernel/HALKit/RISCV/HalAP.cc
new file mode 100644
index 00000000..619a03d4
--- /dev/null
+++ b/dev/Kernel/HALKit/RISCV/HalAP.cc
@@ -0,0 +1,40 @@
+/* -------------------------------------------

+

+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.

+

+------------------------------------------- */

+

+#include <HALKit/RISCV/Processor.h>

+#include <KernelKit/DebugOutput.h>

+#include <HALKit/RISCV/AP.h>

+

+using namespace Kernel;

+

+namespace Kernel::Detail

+{

+	STATIC void mp_hang_fn(void)

+	{

+		while (YES)

+			;

+	}

+} // namespace Kernel::Detail

+

+/// @brief wakes up thread.

+/// wakes up thread from hang.

+void mp_wakeup_thread(HAL::StackFramePtr stack)

+{

+	if (!stack)

+		return;

+

+	hal_set_pc_to_hart(reinterpret_cast<HAL_HARDWARE_THREAD*>(stack->R15), reinterpret_cast<VoidPtr>(stack->BP));

+}

+

+/// @brief makes thread sleep.

+/// hooks and hangs thread to prevent code from executing.

+void mp_hang_thread(HAL::StackFramePtr stack)

+{

+	if (!stack)

+		return;

+

+	hal_set_pc_to_hart(reinterpret_cast<HAL_HARDWARE_THREAD*>(stack->R15), reinterpret_cast<VoidPtr>(Kernel::Detail::mp_hang_fn));

+}

diff --git a/dev/Kernel/HALKit/RISCV/ReadMe.md b/dev/Kernel/HALKit/RISCV/ReadMe.md
new file mode 100644
index 00000000..b099aa31
--- /dev/null
+++ b/dev/Kernel/HALKit/RISCV/ReadMe.md
@@ -0,0 +1,4 @@
+RISCV64 Hardware Abstraction Layer
+
+- Supported CPU: RISCV64
+- Supported Firmware: CoreBoot
\ No newline at end of file
diff --git a/dev/Kernel/HALKit/RISCV/Storage/.gitkeep b/dev/Kernel/HALKit/RISCV/Storage/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/RISCV/Storage/.gitkeep