dac2857229
Move the ksCurTime assertions out of setDeadline, because they are not necessarily true there. Assert ksCurTime in setNextInterrupt instead. We only know that the deadline being set is at least ksCurTime - getTimerPrecision(), which can be slightly in the past (ksCurTime is already slightly in the past, at kernel entry). Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>
36 lines
970 B
C
36 lines
970 B
C
/*
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* Copyright 2020, Data61, CSIRO (ABN 41 687 119 230)
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*
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* SPDX-License-Identifier: GPL-2.0-only
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*/
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#pragma once
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#include <config.h>
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#include <arch/machine/timer.h>
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#ifdef CONFIG_KERNEL_MCS
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#include <types.h>
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#include <arch/linker.h>
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/* Read the current time from the timer. */
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/** MODIFIES: [*] */
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static inline ticks_t getCurrentTime(void);
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/* Set the next deadline irq - deadline is absolute and may be slightly in
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the past. If it is set in the past, we expect an interrupt to be raised
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immediately after we leave the kernel. */
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/** MODIFIES: [*] */
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static inline void setDeadline(ticks_t deadline);
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/* ack previous deadline irq */
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/** MODIFIES: [*] */
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static inline void ackDeadlineIRQ(void);
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/* get the expected wcet of the kernel for this platform */
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static PURE inline ticks_t getKernelWcetTicks(void)
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{
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return usToTicks(getKernelWcetUs());
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}
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#else /* CONFIG_KERNEL_MCS */
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static inline void resetTimer(void);
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#endif /* !CONFIG_KERNEL_MCS */
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