90917cc75a
* [dfs] fixup compiler warning Signed-off-by: Shell <smokewood@qq.com> * [format] libcpu/arm64: separate context switching codes Signed-off-by: Shell <smokewood@qq.com> * [format] libcpu/arm64: separate vector Signed-off-by: Shell <smokewood@qq.com> * [format] libcpu/arm64: separate context_gcc.S Signed-off-by: Shell <smokewood@qq.com> * [format] libcpu/arm64: moving headers to include directory Signed-off-by: Shell <smokewood@qq.com> * style: replace tab with space --------- Signed-off-by: Shell <smokewood@qq.com>
76 lines
1.7 KiB
ArmAsm
76 lines
1.7 KiB
ArmAsm
/*
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* Copyright (c) 2006-2020, 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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* 2024-03-28 Shell Move vector handling codes from context_gcc.S
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*/
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#ifndef __ASSEMBLY__
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#define __ASSEMBLY__
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#endif
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#include "../include/vector_gcc.h"
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#include "context_gcc.h"
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#include <rtconfig.h>
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#include <asm-generic.h>
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#include <asm-fpu.h>
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#include <armv8.h>
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.section .text
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.align 8
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.globl vector_fiq
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vector_fiq:
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SAVE_IRQ_CONTEXT
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stp x0, x1, [sp, #-0x10]!
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bl rt_hw_trap_fiq
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ldp x0, x1, [sp], #0x10
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RESTORE_IRQ_CONTEXT
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.globl rt_interrupt_enter
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.globl rt_interrupt_leave
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.globl rt_thread_switch_interrupt_flag
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.globl rt_interrupt_from_thread
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.globl rt_interrupt_to_thread
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.align 8
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.globl vector_irq
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vector_irq:
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SAVE_IRQ_CONTEXT
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stp x0, x1, [sp, #-0x10]! /* X0 is thread sp */
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bl rt_interrupt_enter
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bl rt_hw_trap_irq
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bl rt_interrupt_leave
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ldp x0, x1, [sp], #0x10
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/**
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* if rt_thread_switch_interrupt_flag set, jump to
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* rt_hw_context_switch_interrupt_do and don't return
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*/
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ldr x1, =rt_thread_switch_interrupt_flag
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ldr x2, [x1]
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cmp x2, #1
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b.ne vector_irq_exit
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mov x2, #0 // clear flag
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str x2, [x1]
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ldr x3, =rt_interrupt_from_thread
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ldr x4, [x3]
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str x0, [x4] // store sp in preempted tasks's tcb
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ldr x3, =rt_interrupt_to_thread
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ldr x4, [x3]
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ldr x0, [x4] // get new task's stack pointer
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RESTORE_IRQ_CONTEXT
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vector_irq_exit:
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RESTORE_IRQ_CONTEXT_WITHOUT_MMU_SWITCH
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