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>
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
When using alarm_arch implementation, 64-bit time can be returned. Using unsign long will cause precision loss.
Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
Using the ts/tick conversion functions provided in clock.h
Do this caused we want speed up the time calculation, so change:
clock_time2ticks, clock_ticks2time, clock_timespec_add,
clock_timespec_compare, clock_timespec_subtract... to MACRO
Signed-off-by: ligd <liguiding1@xiaomi.com>
Adding the CONFIG_ARCH_PERF_EVENTS configuration to enable
hardware performance counting，solve the problem that some platform
hardware counting support is not perfect, you can choose to use
software interface.
This is configured using CONFIG_ARCH_PERF_EVENTS, so weak_functions
are removed to prevent confusion
To use hardware performance counting, must:
1. Configure CONFIG_ARCH_PERF_EVENTS, default selection
2. Call up_perf_init for initialization
Signed-off-by: wangming9 <wangming9@xiaomi.com>
The implementation of up_perf_*() is in a different static library in nuttx:
Hardware: libarch.a
Software: libdrivers.a (weak function)
Since functions with weak attributes cannot be correctly replaced in multiple static libraries,
this PR will use macros to replace whether the arch supports hardware perf events
Signed-off-by: chao an <anchao@xiaomi.com>
Summary:
- Support arm64 pmu api, Currently only the cycle counter function is supported.
- Using ARM64 PMU hardware capability to implement perf interface, modify all
perf interface related code.
- Support for pmu init under smp.
Signed-off-by: wangming9 <wangming9@xiaomi.com>
drivers/timers/arch_timer.c: implement timer arch API on top of timer driver interface
drivers/timers/arch_alarm.c: Implement alarm arch API on top of oneshot driver interface
drivers/timers/arch_rtc.c: Implement RTC arch API on top of RTC driver interface
include/nuttx/timers/rtc.h: Extend struct rtc_time by adding tm_nsec if RTC supporst hiresolution time.
