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09d40e0e08
Enforce full include path for includes. Deprecate old paths.
The following folders inside include/lib have been left unchanged:
- include/lib/cpus/${ARCH}
- include/lib/el3_runtime/${ARCH}
The reason for this change is that having a global namespace for
includes isn't a good idea. It defeats one of the advantages of having
folders and it introduces problems that are sometimes subtle (because
you may not know the header you are actually including if there are two
of them).
For example, this patch had to be created because two headers were
called the same way: e0ea0928d5 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3a2 ("drivers: add tzc380 support").
This problem was introduced in commit 4ecca33988 ("Move include and
source files to logical locations"). At that time, there weren't too
many headers so it wasn't a real issue. However, time has shown that
this creates problems.
Platforms that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.
Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
102 lines
2.5 KiB
C
102 lines
2.5 KiB
C
/*
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* Copyright (c) 2017-2018, 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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#include <assert.h>
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#include <lib/utils.h>
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#include "sdei_private.h"
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#define MAP_OFF(_map, _mapping) ((_map) - (_mapping)->map)
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/*
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* Get SDEI entry with the given mapping: on success, returns pointer to SDEI
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* entry. On error, returns NULL.
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*
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* Both shared and private maps are stored in single-dimensional array. Private
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* event entries are kept for each PE forming a 2D array.
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*/
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sdei_entry_t *get_event_entry(sdei_ev_map_t *map)
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{
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const sdei_mapping_t *mapping;
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sdei_entry_t *cpu_priv_base;
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unsigned int base_idx;
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long int idx;
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if (is_event_private(map)) {
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/*
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* For a private map, find the index of the mapping in the
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* array.
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*/
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mapping = SDEI_PRIVATE_MAPPING();
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idx = MAP_OFF(map, mapping);
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/* Base of private mappings for this CPU */
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base_idx = plat_my_core_pos() * ((unsigned int) mapping->num_maps);
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cpu_priv_base = &sdei_private_event_table[base_idx];
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/*
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* Return the address of the entry at the same index in the
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* per-CPU event entry.
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*/
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return &cpu_priv_base[idx];
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} else {
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mapping = SDEI_SHARED_MAPPING();
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idx = MAP_OFF(map, mapping);
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return &sdei_shared_event_table[idx];
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}
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}
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/*
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* Find event mapping for a given interrupt number: On success, returns pointer
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* to the event mapping. On error, returns NULL.
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*/
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sdei_ev_map_t *find_event_map_by_intr(unsigned int intr_num, bool shared)
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{
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const sdei_mapping_t *mapping;
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sdei_ev_map_t *map;
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unsigned int i;
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/*
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* Look for a match in private and shared mappings, as requested. This
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* is a linear search. However, if the mappings are required to be
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* sorted, for large maps, we could consider binary search.
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*/
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mapping = shared ? SDEI_SHARED_MAPPING() : SDEI_PRIVATE_MAPPING();
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iterate_mapping(mapping, i, map) {
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if (map->intr == intr_num)
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return map;
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}
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return NULL;
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}
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/*
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* Find event mapping for a given event number: On success returns pointer to
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* the event mapping. On error, returns NULL.
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*/
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sdei_ev_map_t *find_event_map(int ev_num)
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{
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const sdei_mapping_t *mapping;
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sdei_ev_map_t *map;
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unsigned int i, j;
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/*
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* Iterate through mappings to find a match. This is a linear search.
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* However, if the mappings are required to be sorted, for large maps,
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* we could consider binary search.
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*/
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for_each_mapping_type(i, mapping) {
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iterate_mapping(mapping, j, map) {
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if (map->ev_num == ev_num)
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return map;
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}
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}
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return NULL;
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}
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