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Diffstat (limited to 'src/kernel/HALKit/ARM64/HalApplicationProcessor.cc')
| -rw-r--r-- | src/kernel/HALKit/ARM64/HalApplicationProcessor.cc | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/src/kernel/HALKit/ARM64/HalApplicationProcessor.cc b/src/kernel/HALKit/ARM64/HalApplicationProcessor.cc deleted file mode 100644 index 33921a56..00000000 --- a/src/kernel/HALKit/ARM64/HalApplicationProcessor.cc +++ /dev/null @@ -1,138 +0,0 @@ -// Copyright 2024-2025, Amlal El Mahrouss (amlal@nekernel.org) -// Licensed under the Apache License, Version 2.0 (see LICENSE file) -// Official repository: https://github.com/nekernel-org/nekernel - -#define GICD_BASE 0x08000000 -#define GICC_BASE 0x08010000 - -#define GICD_CTLR 0x000 -#define GICD_ISENABLER 0x100 -#define GICD_ICENABLER 0x180 -#define GICD_ISPENDR 0x200 -#define GICD_ICPENDR 0x280 -#define GICD_IPRIORITYR 0x400 -#define GICD_ITARGETSR 0x800 -#define GICD_ICFGR 0xC00 - -#define GICC_CTLR 0x000 -#define GICC_PMR 0x004 -#define GICC_IAR 0x00C -#define GICC_EOIR 0x010 - -#include <HALKit/ARM64/ApplicationProcessor.h> -#include <HALKit/ARM64/Processor.h> -#include <KernelKit/DebugOutput.h> -#include <KernelKit/HardwareThreadScheduler.h> -#include <KernelKit/ProcessScheduler.h> -#include <KernelKit/Timer.h> - -// ================================================================= // - -namespace Kernel { -struct HAL_HARDWARE_THREAD final { - HAL::StackFramePtr mFramePtr; - ProcessID mThreadID{0}; -}; - -STATIC HAL_HARDWARE_THREAD kHWThread[kMaxAPInsideSched] = {{nullptr}}; - -namespace Detail { - STATIC BOOL kGICEnabled = NO; - - /***********************************************************************************/ - /// @brief Enables the GIC with EL0 configuration. - /// @internal - /***********************************************************************************/ - STATIC Void mp_setup_gic_el0(Void) { - ke_dma_write<UInt32>(GICD_BASE, GICD_CTLR, YES); - - UInt32 gicc_ctlr = ke_dma_read<UInt32>(GICC_BASE, GICC_CTLR); - - const UInt8 kEnableSignalInt = 0x1; - - gicc_ctlr |= kEnableSignalInt; - gicc_ctlr |= (kEnableSignalInt << 0x1); - - ke_dma_write<UInt32>(GICC_BASE, GICC_CTLR, gicc_ctlr); - - ke_dma_write<UInt32>(GICC_BASE, GICC_PMR, 0xFF); - - UInt32 icfgr = ke_dma_read<UInt32>(GICD_BASE, GICD_ICFGR + (0x20 / 0x10) * 4); - - icfgr |= (0x2 << ((32 % 16) * 2)); - - ke_dma_write<UInt32>(GICD_BASE, GICD_ICFGR + (0x20 / 0x10) * 4, icfgr); - ke_dma_write<UInt32>(GICD_BASE, GICD_ITARGETSR + (0x20 / 0x04) * 4, 0x2 << ((32 % 4) * 8)); - ke_dma_write<UInt32>(GICD_BASE, GICD_IPRIORITYR + (0x20 / 0x04) * 4, 0xFF << ((32 % 4) * 8)); - ke_dma_write<UInt32>(GICD_BASE, GICD_ISENABLER + 4, 0x01); - } - - EXTERN_C BOOL mp_handle_gic_interrupt_el0(Void) { - UInt32 interrupt_id = ke_dma_read<UInt32>(GICC_BASE, GICC_IAR); - - if ((interrupt_id & 0x3FF) < 1020) { - auto interrupt = interrupt_id & 0x3FF; - - const UInt16 kInterruptScheduler = 0x20; - - (Void)(kout << "SMP: AP: " << hex_number(interrupt) << kendl); - - switch (interrupt) { - case kInterruptScheduler: { - ke_dma_write<UInt32>(GICC_BASE, GICC_EOIR, interrupt_id); - UserProcessHelper::StartScheduling(); - break; - } - default: { - ke_dma_write<UInt32>(GICC_BASE, GICC_EOIR, interrupt_id); - break; - } - } - - return YES; - } - - return NO; - } -} // namespace Detail - -/***********************************************************************************/ -/// @brief Get current stack frame for a thread. -/// @param thrdid The thread ID. -/***********************************************************************************/ - -EXTERN_C HAL::StackFramePtr mp_get_current_task(ProcessID thrdid) { - return kHWThread[thrdid].mFramePtr; -} - -/***********************************************************************************/ -/// @brief Register current stack frame for a thread. -/// @param stack_frame The current stack frame. -/// @param thrdid The thread ID. -/***********************************************************************************/ - -EXTERN_C Bool mp_register_task(HAL::StackFramePtr stack_frame, ProcessID thrdid) { - MUST_PASS(Detail::kGICEnabled); - - if (!stack_frame) return NO; - if (thrdid > kMaxAPInsideSched) return NO; - - const auto process_index = thrdid; - - kHWThread[process_index].mFramePtr = stack_frame; - kHWThread[process_index].mThreadID = thrdid; - - return YES; -} - -/***********************************************************************************/ -/// @brief Initialize the Global Interrupt Controller. -/// @internal -/***********************************************************************************/ -Void mp_init_cores(Void) { - if (!Detail::kGICEnabled) { - Detail::kGICEnabled = YES; - Detail::mp_setup_gic_el0(); - } -} -} // namespace Kernel
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