43e137091b
Changes in 4.9.310 arm64: errata: Provide macro for major and minor cpu revisions arm64: Remove useless UAO IPI and describe how this gets enabled arm64: Add MIDR encoding for Arm Cortex-A55 and Cortex-A35 arm64: capabilities: Update prototype for enable call back arm64: capabilities: Move errata work around check on boot CPU arm64: capabilities: Move errata processing code arm64: capabilities: Prepare for fine grained capabilities arm64: capabilities: Add flags to handle the conflicts on late CPU arm64: capabilities: Clean up midr range helpers arm64: Add helpers for checking CPU MIDR against a range arm64: capabilities: Add support for checks based on a list of MIDRs clocksource/drivers/arm_arch_timer: Remove fsl-a008585 parameter clocksource/drivers/arm_arch_timer: Introduce generic errata handling infrastructure arm64: arch_timer: Add infrastructure for multiple erratum detection methods arm64: arch_timer: Add erratum handler for CPU-specific capability arm64: arch_timer: Add workaround for ARM erratum 1188873 arm64: arch_timer: avoid unused function warning arm64: Add silicon-errata.txt entry for ARM erratum 1188873 arm64: Make ARM64_ERRATUM_1188873 depend on COMPAT arm64: Add part number for Neoverse N1 arm64: Add part number for Arm Cortex-A77 arm64: Add Neoverse-N2, Cortex-A710 CPU part definition arm64: Add Cortex-X2 CPU part definition arm64: Add helper to decode register from instruction arm64: entry.S: Add ventry overflow sanity checks arm64: entry: Make the trampoline cleanup optional arm64: entry: Free up another register on kpti's tramp_exit path arm64: entry: Move the trampoline data page before the text page arm64: entry: Allow tramp_alias to access symbols after the 4K boundary arm64: entry: Don't assume tramp_vectors is the start of the vectors arm64: entry: Move trampoline macros out of ifdef'd section arm64: entry: Make the kpti trampoline's kpti sequence optional arm64: entry: Allow the trampoline text to occupy multiple pages arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations arm64: Move arm64_update_smccc_conduit() out of SSBD ifdef arm64: entry: Add vectors that have the bhb mitigation sequences arm64: entry: Add macro for reading symbol addresses from the trampoline arm64: Add percpu vectors for EL1 KVM: arm64: Add templates for BHB mitigation sequences arm64: Mitigate spectre style branch history side channels KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated arm64: add ID_AA64ISAR2_EL1 sys register arm64: Use the clearbhb instruction in mitigations Linux 4.9.310 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I689d7634aebe9d9ffba8d72d1d76bb237ca228a4
75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
/*
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* Copyright (C) 2014 ARM Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ASM_CPU_H
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#define __ASM_CPU_H
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#include <linux/cpu.h>
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#include <linux/init.h>
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#include <linux/percpu.h>
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/*
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* Records attributes of an individual CPU.
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*/
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struct cpuinfo_arm64 {
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struct cpu cpu;
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struct kobject kobj;
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u32 reg_ctr;
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u32 reg_cntfrq;
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u32 reg_dczid;
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u32 reg_midr;
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u32 reg_revidr;
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u64 reg_id_aa64dfr0;
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u64 reg_id_aa64dfr1;
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u64 reg_id_aa64isar0;
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u64 reg_id_aa64isar1;
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u64 reg_id_aa64isar2;
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u64 reg_id_aa64mmfr0;
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u64 reg_id_aa64mmfr1;
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u64 reg_id_aa64mmfr2;
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u64 reg_id_aa64pfr0;
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u64 reg_id_aa64pfr1;
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u32 reg_id_dfr0;
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u32 reg_id_isar0;
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u32 reg_id_isar1;
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u32 reg_id_isar2;
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u32 reg_id_isar3;
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u32 reg_id_isar4;
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u32 reg_id_isar5;
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u32 reg_id_mmfr0;
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u32 reg_id_mmfr1;
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u32 reg_id_mmfr2;
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u32 reg_id_mmfr3;
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u32 reg_id_pfr0;
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u32 reg_id_pfr1;
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u32 reg_mvfr0;
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u32 reg_mvfr1;
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u32 reg_mvfr2;
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};
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DECLARE_PER_CPU(struct cpuinfo_arm64, cpu_data);
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void cpuinfo_store_cpu(void);
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void __init cpuinfo_store_boot_cpu(void);
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void __init init_cpu_features(struct cpuinfo_arm64 *info);
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void update_cpu_features(int cpu, struct cpuinfo_arm64 *info,
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struct cpuinfo_arm64 *boot);
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#endif /* __ASM_CPU_H */
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