linux-kernel - [RFC PATCH v3 0/2] arm64: tlb: add support for TLBI RANGE instructions

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Date:   Tue, 14 Apr 2020 19:28:33 +0800
From:   Zhenyu Ye <yezhenyu2@...wei.com>
To:     <will@...nel.org>, <catalin.marinas@....com>,
        <suzuki.poulose@....com>, <maz@...nel.org>, <steven.price@....com>,
        <guohanjun@...wei.com>, <olof@...om.net>
CC:     <yezhenyu2@...wei.com>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-arch@...r.kernel.org>,
        <linux-mm@...ck.org>, <arm@...nel.org>, <xiexiangyou@...wei.com>,
        <prime.zeng@...ilicon.com>, <zhangshaokun@...ilicon.com>,
        <kuhn.chenqun@...wei.com>
Subject: [RFC PATCH v3 0/2] arm64: tlb: add support for TLBI RANGE instructions

ARMv8.4-TLBI provides TLBI invalidation instruction that apply to a
range of input addresses. This series add support for this feature.

--
ChangeList:
v3:
rebase this series on Linux 5.7-rc1.

v2:
Link: https://lkml.org/lkml/2019/11/11/348

Zhenyu Ye (2):
  arm64: tlb: Detect the ARMv8.4 TLBI RANGE feature
  arm64: tlb: Use the TLBI RANGE feature in arm64

 arch/arm64/include/asm/cpucaps.h  |   3 +-
 arch/arm64/include/asm/sysreg.h   |   4 ++
 arch/arm64/include/asm/tlbflush.h | 108 +++++++++++++++++++++++++++++-
 arch/arm64/kernel/cpufeature.c    |  11 +++
 4 files changed, 124 insertions(+), 2 deletions(-)

-- 
2.19.1