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Diffstat (limited to 'doc/bsp_howto/support.t')
| -rw-r--r-- | doc/bsp_howto/support.t | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/doc/bsp_howto/support.t b/doc/bsp_howto/support.t index 843093a20a..4441636d9f 100644 --- a/doc/bsp_howto/support.t +++ b/doc/bsp_howto/support.t @@ -283,6 +283,17 @@ Interrupt Controller model which does not require the BSP to implement @code{set_vector}. BSPs for these architectures must provide a different set of support routines. +@section Interrupt Delay Profiling + +The RTEMS profiling needs support by the BSP for the interrupt delay times. In +case profiling is enabled via the RTEMS build configuration option +@code{--enable-profiling} (in this case the pre-processor symbol +@code{RTEMS_PROFILING} is defined) a BSP may provide data for the interrupt +delay times. The BSP can feed interrupt delay times with the +@code{_Profiling_Update_max_interrupt_delay()} function +(@code{#include <rtems/score/profiling.h>}). For an example please have a look +at @code{c/src/lib/libbsp/sparc/leon3/clock/ckinit.c}. + @section Programmable Interrupt Controller API A BSP can use the PIC API to install Interrupt Service Routines through |