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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-05-23 14:17:25 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-06-15 13:02:44 +0200 |
| commit | 65f868cac6f7fd5c3ad02046574c19f8f4673255 (patch) | |
| tree | 15103fb87ed2e7161c17006e2c077f35e3506a95 /cpukit/score/cpu/nios2 | |
| parent | Add RTEMS_SYSINIT_CPU_COUNTER (diff) | |
| download | rtems-65f868cac6f7fd5c3ad02046574c19f8f4673255.tar.bz2 | |
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.
Diffstat (limited to 'cpukit/score/cpu/nios2')
| -rw-r--r-- | cpukit/score/cpu/nios2/Makefile.am | 1 | ||||
| -rw-r--r-- | cpukit/score/cpu/nios2/include/rtems/score/cpu.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/cpukit/score/cpu/nios2/Makefile.am b/cpukit/score/cpu/nios2/Makefile.am index 3d6a35905c..a0ecab3345 100644 --- a/cpukit/score/cpu/nios2/Makefile.am +++ b/cpukit/score/cpu/nios2/Makefile.am @@ -5,6 +5,7 @@ CLEANFILES = noinst_LIBRARIES = libscorecpu.a libscorecpu_a_SOURCES = +libscorecpu_a_SOURCES += ../no_cpu/cpucounterfrequency.c libscorecpu_a_SOURCES += ../no_cpu/cpucounterread.c libscorecpu_a_SOURCES += nios2-context-initialize.c libscorecpu_a_SOURCES += nios2-context-switch.S diff --git a/cpukit/score/cpu/nios2/include/rtems/score/cpu.h b/cpukit/score/cpu/nios2/include/rtems/score/cpu.h index c7fdb92d01..1d088ed058 100644 --- a/cpukit/score/cpu/nios2/include/rtems/score/cpu.h +++ b/cpukit/score/cpu/nios2/include/rtems/score/cpu.h @@ -353,6 +353,8 @@ static inline uint32_t CPU_swap_u32( uint32_t value ) typedef uint32_t CPU_Counter_ticks; +uint32_t _CPU_Counter_frequency( void ); + CPU_Counter_ticks _CPU_Counter_read( void ); static inline CPU_Counter_ticks _CPU_Counter_difference( |