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arch/perf: add ARCH_HAVE_PERF_EVENTS to support hardware perf events

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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>
This commit is contained in:
chao an 2023-07-21 15:34:55 +08:00 committed by Xiang Xiao
parent 4b94dc3092
commit ee6e2ce149
5 changed files with 19 additions and 0 deletions
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9
arch/Kconfig
View File

@ -34,6 +34,7 @@ config ARCH_ARM64
select ARCH_HAVE_SYSCALL_HOOKS
select ARCH_HAVE_RDWR_MEM_CPU_RUN
select ARCH_HAVE_THREAD_LOCAL
select ARCH_HAVE_PERF_EVENTS
select ONESHOT
---help---
The ARM64 architectures
@ -135,6 +136,7 @@ config ARCH_XTENSA
select ARCH_HAVE_STDARG_H
select ARCH_HAVE_SETJMP if ARCH_TOOLCHAIN_GNU
select ARCH_HAVE_SYSCALL_HOOKS
select ARCH_HAVE_PERF_EVENTS
---help---
Cadence® Tensilica® Xtensa® actictures.
@ -466,6 +468,13 @@ config ARCH_HAVE_BACKTRACE
bool
default n
config ARCH_HAVE_PERF_EVENTS
bool
default n
---help---
Enable hardware performance counter support for perf events. If
disabled, perf events will use software events only.
config ARCH_HAVE_BOOTLOADER
bool
default n

5
arch/arm/Kconfig
View File

@ -740,6 +740,7 @@ config ARCH_ARMV7M
bool
default n
select ARCH_HAVE_CPUINFO
select ARCH_HAVE_PERF_EVENTS
config ARCH_CORTEXM3
bool
@ -794,6 +795,7 @@ config ARCH_ARMV7A
bool
default n
select ARCH_HAVE_CPUINFO
select ARCH_HAVE_PERF_EVENTS
select ARM_HAVE_WFE_SEV
config ARCH_CORTEXA5
@ -843,6 +845,7 @@ config ARCH_ARMV7R
bool
default n
select ARCH_HAVE_CPUINFO
select ARCH_HAVE_PERF_EVENTS
config ARCH_CORTEXR4
bool
@ -875,6 +878,7 @@ config ARCH_ARMV8M
bool
default n
select ARCH_HAVE_CPUINFO
select ARCH_HAVE_PERF_EVENTS
config ARCH_CORTEXM23
bool
@ -961,6 +965,7 @@ config ARCH_ARMV8R
bool
default n
select ARCH_HAVE_CPUINFO
select ARCH_HAVE_PERF_EVENTS
select ONESHOT
select ALARM_ARCH

1
arch/risc-v/Kconfig
View File

@ -84,6 +84,7 @@ config ARCH_CHIP_ESP32C3
select LIBC_ARCH_STRNLEN
select ARCH_HAVE_TEXT_HEAP
select ARCH_HAVE_BOOTLOADER
select ARCH_HAVE_PERF_EVENTS
---help---
Espressif ESP32-C3 (RV32IMC).

2
drivers/timers/arch_alarm.c
View File

@ -356,6 +356,7 @@ int weak_function up_alarm_tick_start(clock_t ticks)
* units.
****************************************************************************/
#ifndef CONFIG_ARCH_HAVE_PERF_EVENTS
void weak_function up_perf_init(FAR void *arg)
{
UNUSED(arg);
@ -386,6 +387,7 @@ void weak_function up_perf_convert(unsigned long elapsed,
{
timespec_from_usec(ts, elapsed);
}
#endif /* CONFIG_ARCH_HAVE_PERF_EVENTS */
/****************************************************************************
* Name: up_mdelay

2
drivers/timers/arch_timer.c
View File

@ -395,6 +395,7 @@ int weak_function up_timer_tick_start(clock_t ticks)
* units.
****************************************************************************/
#ifndef CONFIG_ARCH_HAVE_PERF_EVENTS
void weak_function up_perf_init(FAR void *arg)
{
UNUSED(arg);
@ -422,6 +423,7 @@ void weak_function up_perf_convert(unsigned long elapsed,
{
timespec_from_usec(ts, elapsed);
}
#endif /* CONFIG_ARCH_HAVE_PERF_EVENTS */
/****************************************************************************
* Name: up_mdelay