arch: default timings for all architectures
Use default if architecture does not have a custom timing implementation. Signed-off-by: Anas Nashif <anas.nashif@intel.com>
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3 changed files with 63 additions and 0 deletions
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@ -45,6 +45,7 @@ config X86
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select CPU_HAS_MMU
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select ARCH_MEM_DOMAIN_SYNCHRONOUS_API if USERSPACE
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select ARCH_HAS_GDBSTUB if !X86_64
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select ARCH_HAS_TIMING_FUNCTIONS
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help
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x86 architecture
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@ -385,6 +386,9 @@ endmenu
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# Architecture Capabilities
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#
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config ARCH_HAS_TIMING_FUNCTIONS
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bool
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config ARCH_HAS_TRUSTED_EXECUTION
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bool
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@ -14,6 +14,12 @@ if(CONFIG_GEN_ISR_TABLES OR CONFIG_EXECUTION_BENCHMARKING)
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)
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endif()
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if(NOT CONFIG_ARCH_HAS_TIMING_FUNCTIONS AND
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NOT CONFIG_SOC_HAS_TIMING_FUNCTIONS AND
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NOT CONFIG_BOARD_HAS_TIMING_FUNCTIONS)
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zephyr_library_sources_ifdef(CONFIG_TIMING_FUNCTIONS timing.c)
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endif()
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# Put functions and data in their own binary sections so that ld can
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# garbage collect them
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zephyr_cc_option(-ffunction-sections -fdata-sections)
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53
arch/common/timing.c
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53
arch/common/timing.c
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@ -0,0 +1,53 @@
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/*
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* Copyright (c) 2020 Intel Corporation.
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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 <sys_clock.h>
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#include <timing/timing.h>
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void timing_init(void)
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{
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}
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void timing_start(void)
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{
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}
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void timing_stop(void)
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{
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}
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timing_t timing_counter_get(void)
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{
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return k_cycle_get_32();
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}
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uint64_t timing_cycles_get(volatile timing_t *const start,
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volatile timing_t *const end)
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{
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return (*end - *start);
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}
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uint64_t timing_freq_get(void)
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{
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return sys_clock_hw_cycles_per_sec();
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}
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uint64_t timing_cycles_to_ns(uint64_t cycles)
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{
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return k_cyc_to_ns_floor64(cycles);
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}
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uint64_t timing_cycles_to_ns_avg(uint64_t cycles, uint32_t count)
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{
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return timing_cycles_to_ns(cycles) / count;
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}
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uint32_t timing_freq_get_mhz(void)
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{
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return (uint32_t)(timing_freq_get() / 1000000);
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}
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