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https://github.com/ARM-software/arm-trusted-firmware.git
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50029b9ac3
This corrects the MISRA violation C2012-15.5: A function should have a single point of exit at the end. Introduced a temporary variable to store the return value to ensure single return for the function. Change-Id: I9c2ca05b506a6ac35b24966fc5fdd5e88e65770d Signed-off-by: Nithin G <nithing@amd.com> Signed-off-by: Maheedhar Bollapalli <maheedharsai.bollapalli@amd.com>
127 lines
3 KiB
C
127 lines
3 KiB
C
/*
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* Copyright (c) 2014-2024, 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 <inttypes.h>
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#include <stdint.h>
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#include <arch_helpers.h>
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#include <common/debug.h>
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#include <drivers/console.h>
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#if ENABLE_FEAT_RAS
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#include <lib/extensions/ras.h>
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#endif
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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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/* Pointer and function to register platform function to load alernate images */
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const struct plat_try_images_ops *plat_try_img_ops;
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void plat_setup_try_img_ops(const struct plat_try_images_ops *plat_try_ops)
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{
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plat_try_img_ops = plat_try_ops;
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}
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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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#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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#if FFH_SUPPORT
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#pragma weak plat_ea_handler = plat_default_ea_handler
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#endif
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void bl31_plat_runtime_setup(void)
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{
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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 %" PRIx64 "\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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const char *get_el_str(unsigned int el)
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{
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const char *mode = NULL;
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switch (el) {
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case MODE_EL3:
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mode = "EL3";
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break;
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case MODE_EL2:
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mode = "EL2";
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break;
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case MODE_EL1:
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mode = "EL1";
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break;
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case MODE_EL0:
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mode = "EL0";
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break;
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default:
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assert(false);
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break;
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}
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return mode;
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}
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#if FFH_SUPPORT
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/* Handler for External Aborts from lower EL including RAS errors */
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void plat_default_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 ENABLE_FEAT_RAS
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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_NL();
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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%" PRIx64 "\n", ea_reason, syndrome);
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/* We reached here due to a panic from a lower EL and assuming this is the default
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* platform registered handler that we could call on a lower EL panic.
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*/
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lower_el_panic();
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}
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#endif
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