linux-kernel - Re: [PATCH v3 0/3] arm64: tlb: add support for TLBI RANGE instructions

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Message-Id: <159483264095.31859.17352107236921556251.b4-ty@arm.com>
Date:   Wed, 15 Jul 2020 18:05:25 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     olof@...om.net, guohanjun@...wei.com, maz@...nel.org,
        Zhenyu Ye <yezhenyu2@...wei.com>, suzuki.poulose@....com,
        will@...nel.org, steven.price@....com
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        kuhn.chenqun@...wei.com, zhangshaokun@...ilicon.com,
        linux-arm-kernel@...ts.infradead.org, xiexiangyou@...wei.com,
        arm@...nel.org, prime.zeng@...ilicon.com,
        linux-arch@...r.kernel.org
Subject: Re: [PATCH v3 0/3] arm64: tlb: add support for TLBI RANGE instructions

On Wed, 15 Jul 2020 15:19:42 +0800, Zhenyu Ye wrote:
> NOTICE: this series are based on the arm64 for-next/tlbi branch:
> git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/tlbi
> 
> ARMv8.4-TLBI provides TLBI invalidation instruction that apply to a
> range of input addresses. This series add support for this feature.
> 
> --
> ChangeList:
> v3:
> - add check on whether binutils supports ARMv8.4-a instructions.
> - pass -march=armv8.4-a to KBUILD_CFLAGS.
> - make __TLBI_RANGE_PAGES to be 'unsigned long' explicitly.
> 
> [...]

Applied to arm64 (for-next/tlbi), thanks!

[1/3] arm64: tlb: Detect the ARMv8.4 TLBI RANGE feature
      https://git.kernel.org/arm64/c/b620ba54547c
[2/3] arm64: enable tlbi range instructions
      https://git.kernel.org/arm64/c/7c78f67e9bd9
[3/3] arm64: tlb: Use the TLBI RANGE feature in arm64
      https://git.kernel.org/arm64/c/d1d3aa98b1d4

(I introduced a system_supports_tlb_range() to avoid the IS_ENABLED
twice)

-- 
Catalin