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Diffstat (limited to '')
| -rw-r--r-- | include/services/sdei_flags.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/include/services/sdei_flags.h b/include/services/sdei_flags.h new file mode 100644 index 0000000..d1308f8 --- /dev/null +++ b/include/services/sdei_flags.h @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef SDEI_FLAGS_H +#define SDEI_FLAGS_H + +#include <lib/utils_def.h> + +/* Internal: SDEI flag bit positions */ +#define SDEI_MAPF_DYNAMIC_SHIFT_ 1U +#define SDEI_MAPF_BOUND_SHIFT_ 2U +#define SDEI_MAPF_SIGNALABLE_SHIFT_ 3U +#define SDEI_MAPF_PRIVATE_SHIFT_ 4U +#define SDEI_MAPF_CRITICAL_SHIFT_ 5U +#define SDEI_MAPF_EXPLICIT_SHIFT_ 6U + +/* SDEI event 0 */ +#define SDEI_EVENT_0 0 + +/* Placeholder interrupt for dynamic mapping */ +#define SDEI_DYN_IRQ 0U + +/* SDEI flags */ + +/* + * These flags determine whether or not an event can be associated with an + * interrupt. Static events are permanently associated with an interrupt, and + * can't be changed at runtime. Association of dynamic events with interrupts + * can be changed at run time using the SDEI_INTERRUPT_BIND and + * SDEI_INTERRUPT_RELEASE calls. + * + * SDEI_MAPF_DYNAMIC only indicates run time configurability, where as + * SDEI_MAPF_BOUND indicates interrupt association. For example: + * + * - Calling SDEI_INTERRUPT_BIND on a dynamic event will have both + * SDEI_MAPF_DYNAMIC and SDEI_MAPF_BOUND set. + * + * - Statically-bound events will always have SDEI_MAPF_BOUND set, and neither + * SDEI_INTERRUPT_BIND nor SDEI_INTERRUPT_RELEASE can be called on them. + * + * See also the is_map_bound() macro. + */ +#define SDEI_MAPF_DYNAMIC BIT(SDEI_MAPF_DYNAMIC_SHIFT_) +#define SDEI_MAPF_BOUND BIT(SDEI_MAPF_BOUND_SHIFT_) +#define SDEI_MAPF_EXPLICIT BIT(SDEI_MAPF_EXPLICIT_SHIFT_) + +#define SDEI_MAPF_SIGNALABLE BIT(SDEI_MAPF_SIGNALABLE_SHIFT_) +#define SDEI_MAPF_PRIVATE BIT(SDEI_MAPF_PRIVATE_SHIFT_) + +#define SDEI_MAPF_NORMAL 0 +#define SDEI_MAPF_CRITICAL BIT(SDEI_MAPF_CRITICAL_SHIFT_) + +#endif /* SDEI_FLAGS_H */ |