56ad0d6837
Use the flag CONFIG_ARCH_HAVE_PERF_EVENTS to detect whether the architecture specific code provides the up_perf_* functions. Now it is mixed with CONFIG_ARCH_PERF_EVENTS, which should select just whether the perf events (perf_*) are enabled for the configuration. - drivers/timers/arch_alarm.c: Don't compile the up_perf_* functions here if the CONFIG_ARCH_HAVE_PERF_EVENTS is defined - arch/*/*_perf.c: Change CONFIG_ARCH_PERF_EVENTS -> CONFIG_ARCH_HAVE_PERF_EVENTS to select whether architecture specific up_perf_* functions are provided Signed-off-by: Jukka Laitinen <jukka.laitinen@tii.ae>
84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
/****************************************************************************
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* arch/arm64/src/common/arm64_perf.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/clock.h>
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#include "arm64_pmu.h"
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#ifdef CONFIG_ARCH_HAVE_PERF_EVENTS
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static unsigned long g_cpu_freq = ULONG_MAX;
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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void up_perf_init(void *arg)
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{
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g_cpu_freq = (unsigned long)(uintptr_t)arg;
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#ifdef CONFIG_ARCH_CLUSTER_PMU
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pmu_clucntr_control_config(CLUSTERPMCR_EL1_C | CLUSTERPMCR_EL1_P |
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CLUSTERPMCR_EL1_E);
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pmu_clucntr_ovsclr_config(CLUSTERPMOVSCLR_EL1_C);
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pmu_clucntr_irq_disable(CLUSTERPMINTENCLR_EL1_C);
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pmu_clucntr_enable(CLUSTERPMCNTENSET_EL1_C);
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#else
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pmu_ccntr_ccfiltr_config(PMCCFILTR_EL0_NSH);
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pmu_cntr_control_config(PMCR_EL0_C | PMCR_EL0_E);
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pmu_cntr_trap_control(PMUSERENR_EL0_EN);
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pmu_cntr_irq_disable(PMINTENCLR_EL1_C);
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pmu_cntr_enable(PMCNTENSET_EL0_C);
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#endif
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}
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unsigned long up_perf_getfreq(void)
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{
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return g_cpu_freq;
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}
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clock_t up_perf_gettime(void)
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{
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#ifdef CONFIG_ARCH_CLUSTER_PMU
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return pmu_get_cluccntr();
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#else
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return pmu_get_ccntr();
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#endif
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}
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void up_perf_convert(clock_t elapsed, struct timespec *ts)
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{
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clock_t left;
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ts->tv_sec = elapsed / g_cpu_freq;
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left = elapsed - ts->tv_sec * g_cpu_freq;
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ts->tv_nsec = NSEC_PER_SEC * left / g_cpu_freq;
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}
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#endif
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