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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>
142 lines
3.3 KiB
C
142 lines
3.3 KiB
C
/*
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* Copyright (c) 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 <stdbool.h>
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#include <arch_helpers.h>
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#include <bl31/ea_handle.h>
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#include <bl31/ehf.h>
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#include <common/debug.h>
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#include <lib/extensions/ras.h>
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#include <lib/extensions/ras_arch.h>
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#include <plat/common/platform.h>
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#ifndef PLAT_RAS_PRI
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# error Platform must define RAS priority value
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#endif
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/* Handler that receives External Aborts on RAS-capable systems */
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int ras_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
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void *handle, uint64_t flags)
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{
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unsigned int i, n_handled = 0;
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int probe_data, ret;
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struct err_record_info *info;
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const struct err_handler_data err_data = {
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.version = ERR_HANDLER_VERSION,
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.ea_reason = ea_reason,
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.interrupt = 0,
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.syndrome = (uint32_t) syndrome,
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.flags = flags,
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.cookie = cookie,
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.handle = handle
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};
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for_each_err_record_info(i, info) {
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assert(info->probe != NULL);
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assert(info->handler != NULL);
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/* Continue probing until the record group signals no error */
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while (true) {
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if (info->probe(info, &probe_data) == 0)
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break;
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/* Handle error */
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ret = info->handler(info, probe_data, &err_data);
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if (ret != 0)
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return ret;
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n_handled++;
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}
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}
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return (n_handled != 0U) ? 1 : 0;
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}
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#if ENABLE_ASSERTIONS
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static void assert_interrupts_sorted(void)
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{
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unsigned int i, last;
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struct ras_interrupt *start = ras_interrupt_mappings.intrs;
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if (ras_interrupt_mappings.num_intrs == 0UL)
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return;
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last = start[0].intr_number;
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for (i = 1; i < ras_interrupt_mappings.num_intrs; i++) {
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assert(start[i].intr_number > last);
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last = start[i].intr_number;
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}
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}
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#endif
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/*
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* Given an RAS interrupt number, locate the registered handler and call it. If
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* no handler was found for the interrupt number, this function panics.
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*/
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static int ras_interrupt_handler(uint32_t intr_raw, uint32_t flags,
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void *handle, void *cookie)
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{
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struct ras_interrupt *ras_inrs = ras_interrupt_mappings.intrs;
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struct ras_interrupt *selected = NULL;
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int start, end, mid, probe_data, ret __unused;
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const struct err_handler_data err_data = {
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.version = ERR_HANDLER_VERSION,
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.interrupt = intr_raw,
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.flags = flags,
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.cookie = cookie,
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.handle = handle
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};
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assert(ras_interrupt_mappings.num_intrs > 0UL);
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start = 0;
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end = (int) ras_interrupt_mappings.num_intrs;
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while (start <= end) {
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mid = ((end + start) / 2);
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if (intr_raw == ras_inrs[mid].intr_number) {
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selected = &ras_inrs[mid];
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break;
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} else if (intr_raw < ras_inrs[mid].intr_number) {
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/* Move left */
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end = mid - 1;
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} else {
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/* Move right */
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start = mid + 1;
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}
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}
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if (selected == NULL) {
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ERROR("RAS interrupt %u has no handler!\n", intr_raw);
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panic();
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}
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if (selected->err_record->probe != NULL) {
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ret = selected->err_record->probe(selected->err_record, &probe_data);
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assert(ret != 0);
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}
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/* Call error handler for the record group */
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assert(selected->err_record->handler != NULL);
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(void) selected->err_record->handler(selected->err_record, probe_data,
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&err_data);
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return 0;
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}
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void __init ras_init(void)
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{
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#if ENABLE_ASSERTIONS
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/* Check RAS interrupts are sorted */
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assert_interrupts_sorted();
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#endif
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/* Register RAS priority handler */
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ehf_register_priority_handler(PLAT_RAS_PRI, ras_interrupt_handler);
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}
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