57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/*
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* Copyright (c) 2020, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef SDEI_FLAGS_H
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#define SDEI_FLAGS_H
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#include <lib/utils_def.h>
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/* Internal: SDEI flag bit positions */
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#define SDEI_MAPF_DYNAMIC_SHIFT_ 1U
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#define SDEI_MAPF_BOUND_SHIFT_ 2U
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#define SDEI_MAPF_SIGNALABLE_SHIFT_ 3U
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#define SDEI_MAPF_PRIVATE_SHIFT_ 4U
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#define SDEI_MAPF_CRITICAL_SHIFT_ 5U
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#define SDEI_MAPF_EXPLICIT_SHIFT_ 6U
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/* SDEI event 0 */
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#define SDEI_EVENT_0 0
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/* Placeholder interrupt for dynamic mapping */
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#define SDEI_DYN_IRQ 0U
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/* SDEI flags */
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/*
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* These flags determine whether or not an event can be associated with an
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* interrupt. Static events are permanently associated with an interrupt, and
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* can't be changed at runtime. Association of dynamic events with interrupts
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* can be changed at run time using the SDEI_INTERRUPT_BIND and
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* SDEI_INTERRUPT_RELEASE calls.
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*
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* SDEI_MAPF_DYNAMIC only indicates run time configurability, where as
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* SDEI_MAPF_BOUND indicates interrupt association. For example:
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*
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* - Calling SDEI_INTERRUPT_BIND on a dynamic event will have both
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* SDEI_MAPF_DYNAMIC and SDEI_MAPF_BOUND set.
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*
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* - Statically-bound events will always have SDEI_MAPF_BOUND set, and neither
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* SDEI_INTERRUPT_BIND nor SDEI_INTERRUPT_RELEASE can be called on them.
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*
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* See also the is_map_bound() macro.
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*/
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#define SDEI_MAPF_DYNAMIC BIT(SDEI_MAPF_DYNAMIC_SHIFT_)
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#define SDEI_MAPF_BOUND BIT(SDEI_MAPF_BOUND_SHIFT_)
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#define SDEI_MAPF_EXPLICIT BIT(SDEI_MAPF_EXPLICIT_SHIFT_)
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#define SDEI_MAPF_SIGNALABLE BIT(SDEI_MAPF_SIGNALABLE_SHIFT_)
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#define SDEI_MAPF_PRIVATE BIT(SDEI_MAPF_PRIVATE_SHIFT_)
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#define SDEI_MAPF_NORMAL 0
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#define SDEI_MAPF_CRITICAL BIT(SDEI_MAPF_CRITICAL_SHIFT_)
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#endif /* SDEI_FLAGS_H */
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