rtems

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Commit Graph

Author	SHA1	Message	Date
Sebastian Huber	762fa62cca	arm: Simplify CPU counter support Use the standard ARMv7-M systick module for the ARMv7-M CPU counter instead of DWT counter since the DWT counter is affected by power saving states. Use an inline function for _CPU_Counter_difference() for all ARM BSPs. Update #3456.	2018-06-15 13:12:05 +02:00
Sebastian Huber	65f868cac6	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.	2018-06-15 13:02:44 +02:00
Sebastian Huber	d7a9eb90b6	bsps: Move armv7m-cpucounter.c to bsps This patch is a part of the BSP source reorganization. Update #3285.	2018-04-24 10:24:28 +02:00

Author

SHA1

Message

Date

Sebastian Huber

762fa62cca

arm: Simplify CPU counter support

Use the standard ARMv7-M systick module for the ARMv7-M CPU counter
instead of DWT counter since the DWT counter is affected by power saving
states.

Use an inline function for _CPU_Counter_difference() for all ARM BSPs.

Update #3456.

2018-06-15 13:12:05 +02:00

Sebastian Huber

65f868cac6

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.

2018-06-15 13:02:44 +02:00

Sebastian Huber

d7a9eb90b6

bsps: Move armv7m-cpucounter.c to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

2018-04-24 10:24:28 +02:00

3 Commits