51 lines
992 B
C
51 lines
992 B
C
/*
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* Copyright (c) 2020 Antony Pavlov <antonynpavlov@gmail.com>
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*
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* based on arch/riscv/core/irq_offload.c
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <kernel.h>
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#include <kernel_structs.h>
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#include <kernel_internal.h>
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#include <irq.h>
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#include <irq_offload.h>
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volatile irq_offload_routine_t _offload_routine;
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static volatile const void *offload_param;
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/*
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* Called by z_mips_enter_irq()
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*
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* Just in case the offload routine itself generates an unhandled
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* exception, clear the offload_routine global before executing.
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*/
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void z_irq_do_offload(void)
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{
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irq_offload_routine_t tmp;
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if (!_offload_routine) {
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return;
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}
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tmp = _offload_routine;
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_offload_routine = NULL;
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tmp((const void *)offload_param);
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}
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void arch_irq_offload(irq_offload_routine_t routine, const void *parameter)
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{
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unsigned int key;
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key = irq_lock();
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_offload_routine = routine;
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offload_param = parameter;
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/* Generate irq offload trap */
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__asm__ volatile ("syscall");
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irq_unlock(key);
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}
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