Kernel: Major repository refactor.

Rework the repo into Private and Public modules.

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

8 files changed, 165 insertions, 0 deletions

diff --git a/Private/HALKit/PowerPC/.gitkeep b/Private/HALKit/PowerPC/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/Private/HALKit/PowerPC/.gitkeep
diff --git a/Private/HALKit/PowerPC/CoreContextSwitchPowerPC.s b/Private/HALKit/PowerPC/CoreContextSwitchPowerPC.s
new file mode 100644
index 00000000..a33ff931
--- /dev/null
+++ b/Private/HALKit/PowerPC/CoreContextSwitchPowerPC.s
@@ -0,0 +1,20 @@
+/*
+ *	========================================================
+ *
+ *	hCore
+ * 	Copyright 2024 Mahrouss Logic, all rights reserved.
+ *
+ * 	========================================================
+ */
+
+.align 4
+.type name, @function
+.text
+.globl rt_do_context_switch
+
+/* r3 = assigner stack, r4 = assignee stack */
+rt_do_context_switch:
+
+    lwz %r4, 0(%r3)
+
+    blr
diff --git a/Private/HALKit/PowerPC/CorePowerPCStart.s b/Private/HALKit/PowerPC/CorePowerPCStart.s
new file mode 100644
index 00000000..f0c5ae2b
--- /dev/null
+++ b/Private/HALKit/PowerPC/CorePowerPCStart.s
@@ -0,0 +1,6 @@
+.globl __AssemblerStart
+.align 4
+.text
+
+__AssemblerStart:
+	b __AssemblerStart
\ No newline at end of file
diff --git a/Private/HALKit/PowerPC/CoreSyscallHandlerPowerPC.cpp b/Private/HALKit/PowerPC/CoreSyscallHandlerPowerPC.cpp
new file mode 100644
index 00000000..6a723cba
--- /dev/null
+++ b/Private/HALKit/PowerPC/CoreSyscallHandlerPowerPC.cpp
@@ -0,0 +1,21 @@
+/*
+ *	========================================================
+ *
+ *	hCore
+ * 	Copyright 2024 Mahrouss Logic, all rights reserved.
+ *
+ * 	========================================================
+ */
+
+#include <ArchKit/Arch.hpp>
+#include <NewKit/Array.hpp>
+
+hCore::Array<void (*)(hCore::Int32 id, hCore::HAL::StackFrame *), kMaxSyscalls> kSyscalls;
+
+extern "C" void rt_syscall_handle(hCore::HAL::StackFrame *stack)
+{
+    for (hCore::SizeT index = 0UL; index < kMaxSyscalls; ++index)
+    {
+        (kSyscalls[index].Leak().Leak())(stack->ID, stack);
+    }
+}
diff --git a/Private/HALKit/PowerPC/PCI/.gitkeep b/Private/HALKit/PowerPC/PCI/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/Private/HALKit/PowerPC/PCI/.gitkeep
diff --git a/Private/HALKit/PowerPC/PCI/Device.cxx b/Private/HALKit/PowerPC/PCI/Device.cxx
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/Private/HALKit/PowerPC/PCI/Device.cxx
diff --git a/Private/HALKit/PowerPC/Processor.cpp b/Private/HALKit/PowerPC/Processor.cpp
new file mode 100644
index 00000000..b134cf92
--- /dev/null
+++ b/Private/HALKit/PowerPC/Processor.cpp
@@ -0,0 +1,68 @@
+/*
+*	========================================================
+*
+*	hCore
+* 	Copyright 2024 Mahrouss Logic, all rights reserved.
+*
+* 	========================================================
+*/
+
+#include <HALKit/PowerPC/Processor.hpp>
+#include <KernelKit/DebugOutput.hpp>
+
+extern "C" void flush_tlb() {}
+extern "C" void rt_wait_for_io() {}
+extern "C" hCore::HAL::StackFrame* rt_get_current_context() { }
+
+namespace hCore
+{
+namespace HAL
+{
+    UIntPtr hal_create_page(bool rw, bool user)
+    {
+        return 0;
+    }
+
+    UIntPtr hal_alloc_page(UIntPtr offset, bool rw, bool user)
+    {
+        return 0;
+    }
+}
+
+// @brief wakes up thread.
+// wakes up thread from hang.
+void rt_wakeup_thread(HAL::StackFrame* stack)
+{
+
+}
+
+// @brief makes thread sleep.
+// hooks and hangs thread to prevent code from executing.
+void rt_hang_thread(HAL::StackFrame* stack)
+{
+
+}
+
+// @brief main HAL entrypoint
+void initialize_hardware_components()
+{
+
+}
+
+void system_io_print(const char *bytes)
+{
+    if (!bytes)
+        return;
+
+    SizeT index = 0;
+    SizeT len = string_length(bytes, 256);
+
+    while (index < len)
+    {
+        // TODO
+        ++index;
+    }
+}
+
+TerminalDevice kcout(hCore::system_io_print, nullptr);
+}
\ No newline at end of file
diff --git a/Private/HALKit/PowerPC/Processor.hpp b/Private/HALKit/PowerPC/Processor.hpp
new file mode 100644
index 00000000..58de1aa6
--- /dev/null
+++ b/Private/HALKit/PowerPC/Processor.hpp
@@ -0,0 +1,50 @@
+/*
+ *	========================================================
+ *
+ *	hCore
+ * 	Copyright 2024 Mahrouss Logic, all rights reserved.
+ *
+ * 	========================================================
+ */
+
+#pragma once
+
+#include <NewKit/Defines.hpp>
+#include <NewKit/Utils.hpp>
+
+#define __aligned __attribute__((aligned(4)))
+
+namespace hCore::HAL
+{
+    typedef UIntPtr Reg;
+
+    struct __aligned StackFrame
+    {
+        Reg R0;
+        Reg R1;
+        Reg R2;
+        Reg R3;
+        Reg R4;
+        Reg R5;
+        Reg R6;
+        Reg R7;
+        Reg ID; // R8
+    };
+
+    typedef StackFrame* StackFramePtr;
+
+    inline void rt_halt()
+    {
+        while (1)
+        {}
+    }
+
+    inline void rt_cli()
+    {
+
+    }
+}
+
+extern "C" void int_handle_math(hCore::UIntPtr sp);
+extern "C" void int_handle_pf(hCore::UIntPtr sp);
+extern "C" void* __ppc_alloca(size_t sz);
\ No newline at end of file