linux-kernel - Re: [PATCH 4/7] arm64: tlbflush.h: add _

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Date:   Fri, 23 Sep 2016 17:07:11 +0100
From:   Will Deacon <will.deacon@....com>
To:     Punit Agrawal <punit.agrawal@....com>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        kvmarm@...ts.cs.columbia.edu, linux-arm-kernel@...ts.infradead.org,
        Mark Rutland <mark.rutland@....com>,
        Christoffer Dall <christoffer.dall@...aro.org>,
        Marc Zyngier <marc.zyngier@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        Catalin Marinas <catalin.marinas@....com>
Subject: Re: [PATCH 4/7] arm64: tlbflush.h: add __tlbi() macro

On Tue, Sep 13, 2016 at 11:16:06AM +0100, Punit Agrawal wrote:
> From: Mark Rutland <mark.rutland@....com>
> 
> As with dsb() and isb(), add a __tlbi() helper so that we can avoid
> distracting asm boilerplate every time we want a TLBI. As some TLBI
> operations take an argument while others do not, some pre-processor is
> used to handle these two cases with different assembly blocks.
> 
> The existing tlbflush.h code is moved over to use the helper.
> 
> Signed-off-by: Mark Rutland <mark.rutland@....com>
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Marc Zyngier <marc.zyngier@....com>
> [ rename helper to __tlbi, update comment and commit log ]
> Signed-off-by: Punit Agrawal <punit.agrawal@....com>
> Reviewed-by: Will Deacon <will.deacon@....com>
> ---
>  arch/arm64/include/asm/tlbflush.h | 34 ++++++++++++++++++++++++++--------
>  1 file changed, 26 insertions(+), 8 deletions(-)

Given that this series seems to have stalled, I'm inclined to pick this
patch (and only this patch) up in the arm64 tree. It's a standalone tidy
up and means one fewer dependency next time round.

Will