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Cortex-A78C erratum 1827430 is a Cat B erratum that applies to revision r0p0 and is fixed in r0p1. The workaround is to set the CPUECTLR_EL1[53] to 1, which disables allocation of splintered pages in the L2 TLB. SDEN documentation: https://developer.arm.com/documentation/SDEN1707916/latest Signed-off-by: Bipin Ravi <bipin.ravi@arm.com> Change-Id: Ie68771bdd3bddeff54d06b6a456dad4a7fc27426
50 lines
2.2 KiB
C
50 lines
2.2 KiB
C
/*
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* Copyright (c) 2021-2023, Arm Limited. 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 CORTEX_A78C_H
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#define CORTEX_A78C_H
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#define CORTEX_A78C_MIDR U(0x410FD4B1)
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/* Cortex-A76 loop count for CVE-2022-23960 mitigation */
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#define CORTEX_A78C_BHB_LOOP_COUNT U(32)
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/*******************************************************************************
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* CPU Auxiliary Control register 2 specific definitions.
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* ****************************************************************************/
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#define CORTEX_A78C_CPUACTLR2_EL1 S3_0_C15_C1_1
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#define CORTEX_A78C_CPUACTLR2_EL1_BIT_0 (ULL(1) << 0)
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#define CORTEX_A78C_CPUACTLR2_EL1_BIT_40 (ULL(1) << 40)
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/*******************************************************************************
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* CPU Extended Control register specific definitions.
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******************************************************************************/
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#define CORTEX_A78C_CPUECTLR_EL1 S3_0_C15_C1_4
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#define CORTEX_A78C_CPUECTLR_EL1_BIT_6 (ULL(1) << 6)
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#define CORTEX_A78C_CPUECTLR_EL1_BIT_7 (ULL(1) << 7)
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#define CORTEX_A78C_CPUECTLR_EL1_MM_ASP_EN (ULL(1) << 53)
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/*******************************************************************************
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* CPU Power Control register specific definitions
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******************************************************************************/
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#define CORTEX_A78C_CPUPWRCTLR_EL1 S3_0_C15_C2_7
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#define CORTEX_A78C_CPUPWRCTLR_EL1_CORE_PWRDN_EN_BIT U(1)
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/*******************************************************************************
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* CPU Auxiliary Control register 3 specific definitions.
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******************************************************************************/
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#define CORTEX_A78C_ACTLR3_EL1 S3_0_C15_C1_2
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/*******************************************************************************
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* CPU Implementation Specific Selected Instruction registers
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******************************************************************************/
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#define CORTEX_A78C_IMP_CPUPSELR_EL3 S3_6_C15_C8_0
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#define CORTEX_A78C_IMP_CPUPCR_EL3 S3_6_C15_C8_1
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#define CORTEX_A78C_IMP_CPUPOR_EL3 S3_6_C15_C8_2
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#define CORTEX_A78C_IMP_CPUPMR_EL3 S3_6_C15_C8_3
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#endif /* CORTEX_A78C_H */
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