From 65f868cac6f7fd5c3ad02046574c19f8f4673255 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Wed, 23 May 2018 14:17:25 +0200 Subject: Add _CPU_Counter_frequency() Add rtems_counter_frequency() API function. Use it to initialize the counter value converter via the new system initialization step (RTEMS_SYSINIT_CPU_COUNTER). This decouples the counter implementation and the counter converter. It avoids an unnecessary pull in of the 64-bit integer division from libgcc. Update #3456. --- cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'cpukit/score/cpu/no_cpu/include') diff --git a/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h b/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h index 5902b4ef36..45edbaa3cf 100644 --- a/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h +++ b/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h @@ -1328,6 +1328,13 @@ static inline uint32_t CPU_swap_u32( */ typedef uint32_t CPU_Counter_ticks; +/** + * @brief Returns the current CPU counter frequency in Hz. + * + * @return The current CPU counter frequency in Hz. + */ +uint32_t _CPU_Counter_frequency( void ); + /** * @brief Returns the current CPU counter value. * -- cgit v1.2.3