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831b0e9824
And from crash_console_flush. We ignore the error information return by console_flush in _every_ place where we call it, and casting the return type to void does not work around the MISRA violation that this causes. Instead, we collect the error information from the driver (to avoid changing that API), and don't return it to the caller. Change-Id: I1e35afe01764d5c8f0efd04f8949d333ffb688c1 Signed-off-by: Jimmy Brisson <jimmy.brisson@arm.com>
117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/*
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* Copyright (c) 2014-2020, 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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#include <assert.h>
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#include <arch_helpers.h>
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#include <drivers/console.h>
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#if RAS_EXTENSION
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#include <lib/extensions/ras.h>
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#endif
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#include <lib/extensions/twed.h>
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#include <lib/xlat_tables/xlat_mmu_helpers.h>
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#include <plat/common/platform.h>
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/*
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* The following platform setup functions are weakly defined. They
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* provide typical implementations that may be re-used by multiple
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* platforms but may also be overridden by a platform if required.
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*/
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#pragma weak bl31_plat_runtime_setup
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#pragma weak plat_arm_set_twedel_scr_el3
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#if SDEI_SUPPORT
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#pragma weak plat_sdei_handle_masked_trigger
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#pragma weak plat_sdei_validate_entry_point
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#endif
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#pragma weak plat_ea_handler
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void bl31_plat_runtime_setup(void)
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{
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console_switch_state(CONSOLE_FLAG_RUNTIME);
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}
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/*
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* Helper function for platform_get_pos() when platform compatibility is
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* disabled. This is to enable SPDs using the older platform API to continue
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* to work.
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*/
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unsigned int platform_core_pos_helper(unsigned long mpidr)
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{
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int idx = plat_core_pos_by_mpidr(mpidr);
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assert(idx >= 0);
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return idx;
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}
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#if SDEI_SUPPORT
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/*
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* Function that handles spurious SDEI interrupts while events are masked.
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*/
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void plat_sdei_handle_masked_trigger(uint64_t mpidr, unsigned int intr)
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{
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WARN("Spurious SDEI interrupt %u on masked PE %llx\n", intr, mpidr);
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}
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/*
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* Default Function to validate SDEI entry point, which returns success.
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* Platforms may override this with their own validation mechanism.
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*/
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int plat_sdei_validate_entry_point(uintptr_t ep, unsigned int client_mode)
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{
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return 0;
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}
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#endif
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#if !ENABLE_BACKTRACE
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static const char *get_el_str(unsigned int el)
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{
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if (el == MODE_EL3) {
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return "EL3";
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} else if (el == MODE_EL2) {
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return "EL2";
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}
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return "S-EL1";
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}
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#endif /* !ENABLE_BACKTRACE */
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/* RAS functions common to AArch64 ARM platforms */
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void plat_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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#if RAS_EXTENSION
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/* Call RAS EA handler */
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int handled = ras_ea_handler(ea_reason, syndrome, cookie, handle, flags);
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if (handled != 0)
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return;
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#endif
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unsigned int level = (unsigned int)GET_EL(read_spsr_el3());
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ERROR("Unhandled External Abort received on 0x%lx from %s\n",
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read_mpidr_el1(), get_el_str(level));
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ERROR("exception reason=%u syndrome=0x%llx\n", ea_reason, syndrome);
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#if HANDLE_EA_EL3_FIRST
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/* Skip backtrace for lower EL */
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if (level != MODE_EL3) {
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console_flush();
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do_panic();
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}
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#endif
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panic();
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}
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/*******************************************************************************
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* In v8.6+ platforms with delayed trapping of WFE this hook sets the delay. It
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* is a weak function definition so can be overridden depending on the
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* requirements of a platform. The only hook provided is for the TWED fields
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* in SCR_EL3, the TWED fields in HCR_EL2, SCTLR_EL2, and SCTLR_EL1 should be
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* configured as needed in lower exception levels.
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******************************************************************************/
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uint32_t plat_arm_set_twedel_scr_el3(void)
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{
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return TWED_DISABLED;
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}
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