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b2f7c9dd80
Commite74afb652(Deprecate weak crash console functions) deprecated the default inclusion of weak definitions for plat_crash_console functions in plat/common/aarch64/platform_helpers.S. The code was later copied out to plat/common/aarch64/crash_console_helpers.S so platforms can link it explicitly if they want to. However, since deprecation does not mean removal, the same code is also still duplicated in platform_helpers.S. The duplicated code contains both empty stubs for the !MULTI_CONSOLE_API case, and a real implementation that used to work but was broken by commitd35cc34(Console: Use callee-saved registers) for MULTI_CONSOLE_API. It's not great to have both of these duplicated in two files, so this patch splits them up: in platform_helpers.S we'll only keep the empty stubs (guarded by !ERROR_DEPRECATED), which should not regress functionality since the MULTI_CONSOLE_API implementation was already broken anyway. In crash_console_helpers.S, we'll only keep the MULTI_CONSOLE_API version, which is enough both as an implementation in itself and as a sample for how to reimplement these functions in a platform-specific file. Change-Id: I83d95a90ab6aac597dc2ea2f2797ac2c8ed075d4 Signed-off-by: Julius Werner <jwerner@chromium.org>
144 lines
3.7 KiB
ArmAsm
144 lines
3.7 KiB
ArmAsm
/*
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* Copyright (c) 2013-2018, 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 <arch.h>
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#include <asm_macros.S>
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#include <console.h>
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#include <platform_def.h>
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.weak plat_report_exception
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#if !ERROR_DEPRECATED
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.weak plat_crash_console_init
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.weak plat_crash_console_putc
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.weak plat_crash_console_flush
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#endif
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.weak plat_reset_handler
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.weak plat_disable_acp
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.weak bl1_plat_prepare_exit
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.weak plat_panic_handler
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.weak bl31_plat_enable_mmu
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.weak bl32_plat_enable_mmu
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.weak plat_handle_uncontainable_ea
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.weak plat_handle_double_fault
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.weak plat_handle_el3_ea
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.globl platform_get_core_pos
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#define MPIDR_RES_BIT_MASK 0xff000000
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/* -----------------------------------------------------
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* Placeholder function which should be redefined by
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* each platform.
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* -----------------------------------------------------
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*/
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func plat_report_exception
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ret
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endfunc plat_report_exception
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#if !ERROR_DEPRECATED
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func plat_crash_console_init
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mov x0, #0
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ret
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endfunc plat_crash_console_init
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func plat_crash_console_putc
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ret
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endfunc plat_crash_console_putc
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func plat_crash_console_flush
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ret
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endfunc plat_crash_console_flush
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#endif /* ERROR_DEPRECATED */
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/* -----------------------------------------------------
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* Placeholder function which should be redefined by
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* each platform. This function should preserve x19 - x29.
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* -----------------------------------------------------
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*/
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func plat_reset_handler
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ret
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endfunc plat_reset_handler
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/* -----------------------------------------------------
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* Placeholder function which should be redefined by
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* each platform. This function is allowed to use
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* registers x0 - x17.
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* -----------------------------------------------------
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*/
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func plat_disable_acp
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ret
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endfunc plat_disable_acp
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/* -----------------------------------------------------
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* void bl1_plat_prepare_exit(entry_point_info_t *ep_info);
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* Called before exiting BL1. Default: do nothing
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* -----------------------------------------------------
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*/
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func bl1_plat_prepare_exit
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ret
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endfunc bl1_plat_prepare_exit
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/* -----------------------------------------------------
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* void plat_panic_handler(void) __dead2;
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* Endless loop by default.
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* -----------------------------------------------------
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*/
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func plat_panic_handler
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wfi
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b plat_panic_handler
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endfunc plat_panic_handler
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/* -----------------------------------------------------
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* void bl31_plat_enable_mmu(uint32_t flags);
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*
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* Enable MMU in BL31.
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* -----------------------------------------------------
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*/
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func bl31_plat_enable_mmu
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b enable_mmu_direct_el3
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endfunc bl31_plat_enable_mmu
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/* -----------------------------------------------------
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* void bl32_plat_enable_mmu(uint32_t flags);
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*
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* Enable MMU in BL32.
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* -----------------------------------------------------
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*/
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func bl32_plat_enable_mmu
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b enable_mmu_direct_el1
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endfunc bl32_plat_enable_mmu
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/* -----------------------------------------------------
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* Platform handler for Uncontainable External Abort.
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*
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* x0: EA reason
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* x1: EA syndrome
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* -----------------------------------------------------
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*/
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func plat_handle_uncontainable_ea
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b report_unhandled_exception
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endfunc plat_handle_uncontainable_ea
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/* -----------------------------------------------------
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* Platform handler for Double Fault.
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*
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* x0: EA reason
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* x1: EA syndrome
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* -----------------------------------------------------
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*/
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func plat_handle_double_fault
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b report_unhandled_exception
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endfunc plat_handle_double_fault
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/* -----------------------------------------------------
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* Platform handler for EL3 External Abort.
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* -----------------------------------------------------
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*/
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func plat_handle_el3_ea
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b report_unhandled_exception
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endfunc plat_handle_el3_ea
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