[PATCH] score: Add and use PRIORITY_PSEUDO_ISR

[Gedare Bloom]

OK. On a related note, I don't like this "MINIMUM" and "MAXIMUM"
terminology I'd prefer HIGHEST and LOWEST, are we stuck with MINIMUM
and MAXIMUM for API compatibility?

On Thu, Mar 5, 2015 at 2:33 AM, Sebastian Huber
<sebastian.huber at embedded-brains.de> wrote:
> ---
>  cpukit/rtems/src/timerserver.c              | 2 +-
>  cpukit/score/include/rtems/score/priority.h | 7 +++++++
>  cpukit/score/src/mpci.c                     | 2 +-
>  3 files changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/cpukit/rtems/src/timerserver.c b/cpukit/rtems/src/timerserver.c
> index ad32172..e4fe56f 100644
> --- a/cpukit/rtems/src/timerserver.c
> +++ b/cpukit/rtems/src/timerserver.c
> @@ -481,7 +481,7 @@ rtems_status_code rtems_timer_initiate_server(
>    if ( !_RTEMS_tasks_Priority_is_valid( priority ) ) {
>      if ( priority != RTEMS_TIMER_SERVER_DEFAULT_PRIORITY )
>        return RTEMS_INVALID_PRIORITY;
> -    _priority = 0;
> +    _priority = PRIORITY_PSEUDO_ISR;
>    }
>
>    /*
> diff --git a/cpukit/score/include/rtems/score/priority.h b/cpukit/score/include/rtems/score/priority.h
> index f10f731..0a772f6 100644
> --- a/cpukit/score/include/rtems/score/priority.h
> +++ b/cpukit/score/include/rtems/score/priority.h
> @@ -58,6 +58,13 @@ typedef uint32_t   Priority_Control;
>  /** This defines the highest (most important) thread priority. */
>  #define PRIORITY_MINIMUM      0
>
> +/**
> + * @brief This defines the priority of pseudo-ISR threads.
> + *
> + * Examples are the MPCI and timer server threads.
> + */
> +#define PRIORITY_PSEUDO_ISR   PRIORITY_MINIMUM
> +
>  /** This defines the default lowest (least important) thread priority. */
>  #if defined (CPU_PRIORITY_MAXIMUM)
>    #define PRIORITY_DEFAULT_MAXIMUM      CPU_PRIORITY_MAXIMUM
> diff --git a/cpukit/score/src/mpci.c b/cpukit/score/src/mpci.c
> index e8a8ba2..a2acf89 100644
> --- a/cpukit/score/src/mpci.c
> +++ b/cpukit/score/src/mpci.c
> @@ -112,7 +112,7 @@ void _MPCI_Create_server( void )
>        CPU_MPCI_RECEIVE_SERVER_EXTRA_STACK +
>        _Configuration_MP_table->extra_mpci_receive_server_stack,
>      CPU_ALL_TASKS_ARE_FP,
> -    PRIORITY_MINIMUM,
> +    PRIORITY_PSEUDO_ISR,
>      false,       /* no preempt */
>      THREAD_CPU_BUDGET_ALGORITHM_NONE,
>      NULL,        /* no budget algorithm callout */
> --
> 1.8.4.5
>
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