115 lines
2.6 KiB
C
115 lines
2.6 KiB
C
/*
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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 __ARM64_INC_VECTOR_H__
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#define __ARM64_INC_VECTOR_H__
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#include "asm-generic.h"
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#include <rtconfig.h>
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#include <asm-fpu.h>
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#include <armv8.h>
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.macro SAVE_IRQ_CONTEXT
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/* Save the entire context. */
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SAVE_FPU sp
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stp x0, x1, [sp, #-0x10]!
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stp x2, x3, [sp, #-0x10]!
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stp x4, x5, [sp, #-0x10]!
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stp x6, x7, [sp, #-0x10]!
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stp x8, x9, [sp, #-0x10]!
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stp x10, x11, [sp, #-0x10]!
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stp x12, x13, [sp, #-0x10]!
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stp x14, x15, [sp, #-0x10]!
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stp x16, x17, [sp, #-0x10]!
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stp x18, x19, [sp, #-0x10]!
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stp x20, x21, [sp, #-0x10]!
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stp x22, x23, [sp, #-0x10]!
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stp x24, x25, [sp, #-0x10]!
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stp x26, x27, [sp, #-0x10]!
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stp x28, x29, [sp, #-0x10]!
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mrs x28, fpcr
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mrs x29, fpsr
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stp x28, x29, [sp, #-0x10]!
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mrs x29, sp_el0
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stp x29, x30, [sp, #-0x10]!
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mrs x3, spsr_el1
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mrs x2, elr_el1
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stp x2, x3, [sp, #-0x10]!
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mov x0, sp /* Move SP into X0 for saving. */
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.endm
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#ifdef RT_USING_SMP
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#include "../mp/context_gcc.h"
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#else
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#include "../up/context_gcc.h"
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#endif
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.macro RESTORE_IRQ_CONTEXT_WITHOUT_MMU_SWITCH
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/* the SP is already ok */
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ldp x2, x3, [sp], #0x10 /* SPSR and ELR. */
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tst x3, #0x1f
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msr spsr_el1, x3
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msr elr_el1, x2
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ldp x29, x30, [sp], #0x10
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msr sp_el0, x29
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ldp x28, x29, [sp], #0x10
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msr fpcr, x28
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msr fpsr, x29
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ldp x28, x29, [sp], #0x10
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ldp x26, x27, [sp], #0x10
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ldp x24, x25, [sp], #0x10
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ldp x22, x23, [sp], #0x10
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ldp x20, x21, [sp], #0x10
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ldp x18, x19, [sp], #0x10
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ldp x16, x17, [sp], #0x10
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ldp x14, x15, [sp], #0x10
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ldp x12, x13, [sp], #0x10
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ldp x10, x11, [sp], #0x10
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ldp x8, x9, [sp], #0x10
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ldp x6, x7, [sp], #0x10
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ldp x4, x5, [sp], #0x10
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ldp x2, x3, [sp], #0x10
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ldp x0, x1, [sp], #0x10
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RESTORE_FPU sp
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#ifdef RT_USING_SMART
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beq arch_ret_to_user
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#endif
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eret
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.endm
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.macro SAVE_USER_CTX
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mrs x1, spsr_el1
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and x1, x1, 0xf
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cmp x1, xzr
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bne 1f
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bl lwp_uthread_ctx_save
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ldp x0, x1, [sp]
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1:
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.endm
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.macro RESTORE_USER_CTX, ctx
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ldr x1, [\ctx, #CONTEXT_OFFSET_SPSR_EL1]
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and x1, x1, 0x1f
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cmp x1, xzr
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bne 1f
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bl lwp_uthread_ctx_restore
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1:
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.endm
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#endif /* __ARM64_INC_VECTOR_H__ */
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