linux-kernel - Re: [PATCH 4/7] arm64: tlbflush.h: add __tlbi() macro

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Date:   Mon, 03 Oct 2016 12:04:39 +0100
From:   Punit Agrawal <punit.agrawal@....com>
To:     Will Deacon <will.deacon@....com>
Cc:     kvm@...r.kernel.org, Marc Zyngier <marc.zyngier@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>, kvmarm@...ts.cs.columbia.edu,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 4/7] arm64: tlbflush.h: add __tlbi() macro

Will Deacon <will.deacon@....com> writes:

> On Fri, Sep 23, 2016 at 05:07:10PM +0100, Will Deacon wrote:
>> 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.

Agreed!

>
> Ok, I've picked this one up. Please re-post the rest of the series after
> the merge window.

Thanks for merging the patch. I'll re-post the series after the merge
window.

>
> Will
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> kvmarm@...ts.cs.columbia.edu
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