79da079239
This commit also converts our own copyright headers to directly use SPDX, but leaves all other copyright header intact, only adding the SPDX ident. As far as possible this commit also merges multiple Data61 copyright statements/headers into one for consistency.
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
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* Copyright 2014, General Dynamics C4 Systems
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*
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* SPDX-License-Identifier: GPL-2.0-only
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*/
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#ifndef BENCHMARK_H
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#define BENCHMARK_H
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#include <arch/benchmark.h>
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#include <machine/io.h>
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#include <sel4/arch/constants.h>
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#include <arch/machine/hardware.h>
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#include <sel4/benchmark_tracepoints_types.h>
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#include <mode/hardware.h>
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#if CONFIG_MAX_NUM_TRACE_POINTS > 0
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#define TRACE_POINT_START(x) trace_point_start(x)
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#define TRACE_POINT_STOP(x) trace_point_stop(x)
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#define MAX_LOG_SIZE (seL4_LogBufferSize / sizeof(benchmark_tracepoint_log_entry_t))
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extern timestamp_t ksEntries[CONFIG_MAX_NUM_TRACE_POINTS];
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extern bool_t ksStarted[CONFIG_MAX_NUM_TRACE_POINTS];
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extern timestamp_t ksExit;
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extern seL4_Word ksLogIndex;
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extern seL4_Word ksLogIndexFinalized;
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extern paddr_t ksUserLogBuffer;
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static inline void trace_point_start(word_t id)
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{
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ksEntries[id] = timestamp();
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ksStarted[id] = true;
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}
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static inline void trace_point_stop(word_t id)
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{
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benchmark_tracepoint_log_entry_t *ksLog = (benchmark_tracepoint_log_entry_t *) KS_LOG_PPTR;
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ksExit = timestamp();
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if (likely(ksUserLogBuffer != 0)) {
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if (likely(ksStarted[id])) {
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ksStarted[id] = false;
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if (likely(ksLogIndex < MAX_LOG_SIZE)) {
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ksLog[ksLogIndex] = (benchmark_tracepoint_log_entry_t) {
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id, ksExit - ksEntries[id]
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};
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}
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/* increment the log index even if we have exceeded the log size
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* this is so we can tell if we need a bigger log */
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ksLogIndex++;
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}
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/* If this fails integer overflow has occurred. */
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assert(ksLogIndex > 0);
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}
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}
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#else
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#define TRACE_POINT_START(x)
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#define TRACE_POINT_STOP(x)
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#endif /* CONFIG_MAX_NUM_TRACE_POINTS > 0 */
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#endif /* BENCHMARK_H */
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