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1.Add the necessary function declarations for SMP enablement and implement the corresponding functionalities, including rt_hw_secondary_cpu_up, secondary_cpu_entry, rt_hw_local_irq_disable, rt_hw_local_irq_enable, rt_hw_secondary_cpu_idle_exec, rt_hw_spin_lock_init, rt_hw_spin_lock, rt_hw_spin_unlock, rt_hw_ipi_send, rt_hw_interrupt_set_priority, rt_hw_interrupt_get_priority, rt_hw_ipi_init, rt_hw_ipi_handler_install, and rt_hw_ipi_handler. 2.In the two functions (rt_hw_context_switch_to and rt_hw_context_switch) in context_gcc.S, add a call to rt_cpus_lock_status_restore to update the scheduler information. 3.If the MMU is enabled, use the .percpu section and record different hartids by configuring special page tables; if the MMU is not enabled, record them directly in the satp register. Additionally, add dynamic startup based on core configuration.The .percpu section is only used when both ARCH_MM_MMU and RT_USING_SMP are enabled. However, there is a certain amount of space waste since no macro guard is added for it in the link script currently. 4.The physical memory of QEMU started in CI is 128MB, so RT_HW_PAGE_END is modified from the original +256MB to +128MB. Modify the SConscript file under the common64 directory to include common/atomic_riscv.c in the compilation process. Signed-off-by: Mengchen Teng <teng_mengchen@163.com>
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/*
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* Copyright (c) 2006-2024, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2021-05-20 bigmagic The first version
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*/
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#ifndef INTERRUPT_H__
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#define INTERRUPT_H__
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#define MAX_HANDLERS 128
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#include <rthw.h>
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#include "stack.h"
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enum
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{
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EP_INSTRUCTION_ADDRESS_MISALIGNED = 0,
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EP_INSTRUCTION_ACCESS_FAULT,
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EP_ILLEGAL_INSTRUCTION,
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EP_BREAKPOINT,
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EP_LOAD_ADDRESS_MISALIGNED,
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EP_LOAD_ACCESS_FAULT,
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EP_STORE_ADDRESS_MISALIGNED,
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EP_STORE_ACCESS_FAULT,
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EP_ENVIRONMENT_CALL_U_MODE,
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EP_ENVIRONMENT_CALL_S_MODE,
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EP_RESERVED10,
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EP_ENVIRONMENT_CALL_M_MODE,
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EP_INSTRUCTION_PAGE_FAULT, /* page attr */
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EP_LOAD_PAGE_FAULT, /* read data */
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EP_RESERVED14,
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EP_STORE_PAGE_FAULT, /* write data */
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};
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int rt_hw_plic_irq_enable(int irq_number);
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int rt_hw_plic_irq_disable(int irq_number);
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void rt_hw_interrupt_init(void);
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void rt_hw_interrupt_mask(int vector);
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rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler, void *param, const char *name);
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void handle_trap(rt_ubase_t xcause, rt_ubase_t xtval, rt_ubase_t xepc, struct rt_hw_stack_frame *sp);
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#ifdef RT_USING_SMP
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void rt_hw_interrupt_set_priority(int vector, unsigned int priority);
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unsigned int rt_hw_interrupt_get_priority(int vector);
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void rt_hw_ipi_handler(void);
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void rt_hw_ipi_handler_install(int ipi_vector, rt_isr_handler_t ipi_isr_handler);
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void rt_hw_ipi_init(void);
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void rt_hw_ipi_send(int ipi_vector, unsigned int cpu_mask);
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#endif /* RT_USING_SMP */
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#endif
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