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0d020822ae
Similar to the cpu_rev_var and cpu_ger_rev_var functions, inline the call_reset_handler handler. This way we skip the costly branch at no extra cost as this is the only place where this is called. While we're at it, drop the options for CPU_NO_RESET_FUNC. The only cpus that need that are virtual cpus which can spare the tiny bit of performance lost. The rest are real cores which can save on the check for zero. Now is a good time to put the assert for a missing cpu in the get_cpu_ops_ptr function so that it's a bit better encapsulated. Change-Id: Ia7c3dcd13b75e5d7c8bafad4698994ea65f42406 Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
150 lines
4.7 KiB
C
150 lines
4.7 KiB
C
/*
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* Copyright (c) 2023-2025, 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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#ifndef CPU_OPS_H
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#define CPU_OPS_H
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#include <arch.h>
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#define CPU_IMPL_PN_MASK (MIDR_IMPL_MASK << MIDR_IMPL_SHIFT) | \
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(MIDR_PN_MASK << MIDR_PN_SHIFT)
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/* Hardcode to keep compatible with assembly. sizeof(uintptr_t) */
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#if __aarch64__
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#define CPU_WORD_SIZE 8
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#else
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#define CPU_WORD_SIZE 4
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#endif /* __aarch64__ */
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/* The number of CPU operations allowed */
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#define CPU_MAX_PWR_DWN_OPS 2
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#if __aarch64__
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#define CPU_NO_EXTRA1_FUNC 0
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#define CPU_NO_EXTRA2_FUNC 0
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#define CPU_NO_EXTRA3_FUNC 0
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#define CPU_NO_EXTRA4_FUNC 0
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#endif /* __aarch64__ */
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/*
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* Define the sizes of the fields in the cpu_ops structure. Word size is set per
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* Aarch so keep these definitions the same and each can include whatever it
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* needs.
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*/
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#define CPU_MIDR_SIZE CPU_WORD_SIZE
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#ifdef IMAGE_AT_EL3
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#define CPU_RESET_FUNC_SIZE CPU_WORD_SIZE
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#else
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#define CPU_RESET_FUNC_SIZE 0
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#endif /* IMAGE_AT_EL3 */
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#define CPU_EXTRA1_FUNC_SIZE CPU_WORD_SIZE
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#define CPU_EXTRA2_FUNC_SIZE CPU_WORD_SIZE
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#define CPU_EXTRA3_FUNC_SIZE CPU_WORD_SIZE
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#define CPU_EXTRA4_FUNC_SIZE CPU_WORD_SIZE
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#define CPU_E_HANDLER_FUNC_SIZE CPU_WORD_SIZE
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/* The power down core and cluster is needed only in BL31 and BL32 */
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#if defined(IMAGE_BL31) || defined(IMAGE_BL32)
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#define CPU_PWR_DWN_OPS_SIZE CPU_WORD_SIZE * CPU_MAX_PWR_DWN_OPS
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#else
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#define CPU_PWR_DWN_OPS_SIZE 0
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#endif /* defined(IMAGE_BL31) || defined(IMAGE_BL32) */
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#define CPU_ERRATA_LIST_START_SIZE CPU_WORD_SIZE
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#define CPU_ERRATA_LIST_END_SIZE CPU_WORD_SIZE
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/* Fields required to print errata status */
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#if REPORT_ERRATA
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#define CPU_CPU_STR_SIZE CPU_WORD_SIZE
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/* BL1 doesn't require mutual exclusion and printed flag. */
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#if defined(IMAGE_BL31) || defined(IMAGE_BL32)
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#define CPU_ERRATA_LOCK_SIZE CPU_WORD_SIZE
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#define CPU_ERRATA_PRINTED_SIZE CPU_WORD_SIZE
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#else
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#define CPU_ERRATA_LOCK_SIZE 0
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#define CPU_ERRATA_PRINTED_SIZE 0
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#endif /* defined(IMAGE_BL31) || defined(IMAGE_BL32) */
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#else
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#define CPU_CPU_STR_SIZE 0
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#define CPU_ERRATA_LOCK_SIZE 0
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#define CPU_ERRATA_PRINTED_SIZE 0
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#endif /* REPORT_ERRATA */
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#if defined(IMAGE_BL31) && CRASH_REPORTING
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#define CPU_REG_DUMP_SIZE CPU_WORD_SIZE
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#else
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#define CPU_REG_DUMP_SIZE 0
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#endif /* defined(IMAGE_BL31) && CRASH_REPORTING */
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/*
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* Define the offsets to the fields in cpu_ops structure. Every offset is
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* defined based on the offset and size of the previous field.
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*/
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#define CPU_MIDR 0
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#define CPU_RESET_FUNC CPU_MIDR + CPU_MIDR_SIZE
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#if __aarch64__
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#define CPU_EXTRA1_FUNC CPU_RESET_FUNC + CPU_RESET_FUNC_SIZE
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#define CPU_EXTRA2_FUNC CPU_EXTRA1_FUNC + CPU_EXTRA1_FUNC_SIZE
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#define CPU_EXTRA3_FUNC CPU_EXTRA2_FUNC + CPU_EXTRA2_FUNC_SIZE
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#define CPU_EXTRA4_FUNC CPU_EXTRA3_FUNC + CPU_EXTRA3_FUNC_SIZE
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#define CPU_E_HANDLER_FUNC CPU_EXTRA4_FUNC + CPU_EXTRA4_FUNC_SIZE
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#define CPU_PWR_DWN_OPS CPU_E_HANDLER_FUNC + CPU_E_HANDLER_FUNC_SIZE
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#else
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#define CPU_PWR_DWN_OPS CPU_RESET_FUNC + CPU_RESET_FUNC_SIZE
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#endif /* __aarch64__ */
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#define CPU_ERRATA_LIST_START CPU_PWR_DWN_OPS + CPU_PWR_DWN_OPS_SIZE
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#define CPU_ERRATA_LIST_END CPU_ERRATA_LIST_START + CPU_ERRATA_LIST_START_SIZE
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#define CPU_CPU_STR CPU_ERRATA_LIST_END + CPU_ERRATA_LIST_END_SIZE
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#define CPU_ERRATA_LOCK CPU_CPU_STR + CPU_CPU_STR_SIZE
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#define CPU_ERRATA_PRINTED CPU_ERRATA_LOCK + CPU_ERRATA_LOCK_SIZE
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#if __aarch64__
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#define CPU_REG_DUMP CPU_ERRATA_PRINTED + CPU_ERRATA_PRINTED_SIZE
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#define CPU_OPS_SIZE CPU_REG_DUMP + CPU_REG_DUMP_SIZE
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#else
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#define CPU_OPS_SIZE CPU_ERRATA_PRINTED + CPU_ERRATA_PRINTED_SIZE
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#endif /* __aarch64__ */
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#ifndef __ASSEMBLER__
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#include <lib/cassert.h>
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#include <lib/spinlock.h>
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struct cpu_ops {
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unsigned long midr;
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#ifdef IMAGE_AT_EL3
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void (*reset_func)(void);
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#endif /* IMAGE_AT_EL3 */
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#if __aarch64__
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void (*extra1_func)(void);
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void (*extra2_func)(void);
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void (*extra3_func)(void);
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void (*extra4_func)(void);
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void (*e_handler_func)(long es);
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#endif /* __aarch64__ */
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#if (defined(IMAGE_BL31) || defined(IMAGE_BL32)) && CPU_MAX_PWR_DWN_OPS
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void (*pwr_dwn_ops[CPU_MAX_PWR_DWN_OPS])(void);
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#endif /* (defined(IMAGE_BL31) || defined(IMAGE_BL32)) && CPU_MAX_PWR_DWN_OPS */
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void *errata_list_start;
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void *errata_list_end;
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#if REPORT_ERRATA
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char *cpu_str;
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#if defined(IMAGE_BL31) || defined(IMAGE_BL32)
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spinlock_t *errata_lock;
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unsigned int *errata_reported;
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#endif /* defined(IMAGE_BL31) || defined(IMAGE_BL32) */
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#endif /* REPORT_ERRATA */
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#if defined(IMAGE_BL31) && CRASH_REPORTING
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void (*reg_dump)(void);
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#endif /* defined(IMAGE_BL31) && CRASH_REPORTING */
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} __packed;
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CASSERT(sizeof(struct cpu_ops) == CPU_OPS_SIZE,
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assert_cpu_ops_asm_c_different_sizes);
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long cpu_get_rev_var(void);
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void *get_cpu_ops_ptr(void);
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#endif /* __ASSEMBLER__ */
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#endif /* CPU_OPS_H */
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