161 lines
4.7 KiB
C
161 lines
4.7 KiB
C
/****************************************************************************
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* sched/irq/irq_dispatch.c
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <debug.h>
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#include <nuttx/arch.h>
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#include <nuttx/irq.h>
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#include <nuttx/mm/mm.h>
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#include <nuttx/random.h>
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#include <nuttx/sched_note.h>
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#include "irq/irq.h"
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#include "clock/clock.h"
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#include "sched/sched.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifdef CONFIG_ARCH_MINIMAL_VECTORTABLE
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# define NUSER_IRQS CONFIG_ARCH_NUSER_INTERRUPTS
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#else
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# define NUSER_IRQS NR_IRQS
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#endif
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/* CALL_VECTOR - Call the interrupt service routine attached to this
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* interrupt request
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*/
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#ifdef CONFIG_SCHED_IRQMONITOR
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# define CALL_VECTOR(ndx, vector, irq, context, arg) \
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do \
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{ \
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clock_t start; \
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clock_t elapsed; \
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start = perf_gettime(); \
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vector(irq, context, arg); \
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elapsed = perf_gettime() - start; \
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if (ndx < NUSER_IRQS) \
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{ \
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g_irqvector[ndx].count++; \
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if (elapsed > g_irqvector[ndx].time) \
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{ \
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g_irqvector[ndx].time = elapsed; \
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} \
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} \
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if (CONFIG_SCHED_CRITMONITOR_MAXTIME_IRQ > 0 && \
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elapsed > CONFIG_SCHED_CRITMONITOR_MAXTIME_IRQ) \
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{ \
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CRITMONITOR_PANIC("IRQ %d(%p), execute time too long %ju\n", \
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irq, vector, (uintmax_t)elapsed); \
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} \
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} \
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while (0)
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#else
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# define CALL_VECTOR(ndx, vector, irq, context, arg) \
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vector(irq, context, arg)
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#endif /* CONFIG_SCHED_IRQMONITOR */
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: irq_dispatch
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*
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* Description:
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* This function must be called from the architecture-specific logic in
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* order to dispatch an interrupt to the appropriate, registered handling
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* logic.
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*
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****************************************************************************/
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void irq_dispatch(int irq, FAR void *context)
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{
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#ifdef CONFIG_DEBUG_MM
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struct tcb_s *rtcb = this_task();
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#endif
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xcpt_t vector = irq_unexpected_isr;
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FAR void *arg = NULL;
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unsigned int ndx = irq;
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#if NR_IRQS > 0
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if ((unsigned)irq < NR_IRQS)
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{
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#ifdef CONFIG_ARCH_MINIMAL_VECTORTABLE
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ndx = g_irqmap[irq];
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if (ndx < CONFIG_ARCH_NUSER_INTERRUPTS)
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{
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if (g_irqvector[ndx].handler)
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{
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vector = g_irqvector[ndx].handler;
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arg = g_irqvector[ndx].arg;
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}
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}
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#else
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if (g_irqvector[ndx].handler)
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{
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vector = g_irqvector[ndx].handler;
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arg = g_irqvector[ndx].arg;
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}
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#endif
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}
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#endif
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#ifdef CONFIG_CRYPTO_RANDOM_POOL_COLLECT_IRQ_RANDOMNESS
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/* Add interrupt timing randomness to entropy pool */
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add_irq_randomness(irq);
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#endif
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#ifdef CONFIG_SCHED_INSTRUMENTATION_IRQHANDLER
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/* Notify that we are entering into the interrupt handler */
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sched_note_irqhandler(irq, vector, true);
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#endif
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/* Then dispatch to the interrupt handler */
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CALL_VECTOR(ndx, vector, irq, context, arg);
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UNUSED(ndx);
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#ifdef CONFIG_SCHED_INSTRUMENTATION_IRQHANDLER
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/* Notify that we are leaving from the interrupt handler */
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sched_note_irqhandler(irq, vector, false);
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#endif
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#ifdef CONFIG_DEBUG_MM
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if ((rtcb->flags & TCB_FLAG_HEAP_CHECK) ||
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(this_task()->flags & TCB_FLAG_HEAP_CHECK))
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{
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kmm_checkcorruption();
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}
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#endif
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}
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