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bsps/irq: Improve affinity set handling

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Restrict the affinity set to the set of online processors.  Make sure
the affinity set for an interrupt vector contains at least one online
processor.

Update #3269.
This commit is contained in:
Sebastian Huber
2022-03-15 17:34:34 +01:00
parent ca4fa22e51
commit f311caf984
2 changed files with 15 additions and 2 deletions
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8
bsps/shared/irq/irq-affinity.c
View File

@@ -10,7 +10,7 @@
*/
/*
* Copyright (C) 2017 embedded brains GmbH (http://www.embedded-brains.de)
* Copyright (C) 2017, 2022 embedded brains GmbH (http://www.embedded-brains.de)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -37,6 +37,7 @@
#include <bsp/irq-generic.h>
#include <rtems/score/processormask.h>
#include <rtems/score/smpimpl.h>
rtems_status_code rtems_interrupt_set_affinity(
rtems_vector_number vector,
@@ -60,6 +61,11 @@ rtems_status_code rtems_interrupt_set_affinity(
return RTEMS_INVALID_NUMBER;
}
_Processor_mask_And( &set, _SMP_Get_online_processors(), &set );
if ( _Processor_mask_Is_zero( &set ) ) {
return RTEMS_INVALID_NUMBER;
}
#if defined(RTEMS_SMP)
return bsp_interrupt_set_affinity( vector, &set );
#else

9
cpukit/include/rtems/rtems/intr.h
View File

@@ -7,7 +7,7 @@
*/
/*
* Copyright (C) 2008, 2021 embedded brains GmbH (http://www.embedded-brains.de)
* Copyright (C) 2008, 2022 embedded brains GmbH (http://www.embedded-brains.de)
* Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
*
* Redistribution and use in source and binary forms, with or without
@@ -1759,9 +1759,16 @@ rtems_status_code rtems_interrupt_get_affinity(
* interrupt vector has not been satisfied.
*
* @par Notes
* @parblock
* The rtems_interrupt_get_attributes() directive may be used to check if the
* processor affinity of an interrupt vector can be set.
*
* Only online processors of the affinity set specified by ``affinity_size``
* and ``affinity`` are considered by the directive. Other processors of the
* set are ignored. If the set contains no online processor, then the set is
* invalid and an error status is returned.
* @endparblock
*
* @par Constraints
* @parblock
* The following constraints apply to this directive: