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From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv2 1/4] arm64: Add CONFIG_DEBUG_SET_MODULE_RONX support
Date: Tue, 3 Jun 2014 16:37:27 +0100	[thread overview]
Message-ID: <20140603153727.GR23149@arm.com> (raw)
In-Reply-To: <CAPvkgC3rMhN0cvZsjX028XDk8esnyvi0GTSvcXFmn9ub_vcZuQ@mail.gmail.com>

On Tue, Jun 03, 2014 at 04:31:57PM +0100, Steve Capper wrote:
> On 3 June 2014 16:22, Will Deacon <will.deacon@arm.com> wrote:
> 
> [ ... ]
> 
> >
> > We already have an isb in flush_tlb_kernel_range.
> 
> Hi Will,
> The following thread discusses the removal of the isb() from
> flush_tlb_kernel_range:
> http://lists.infradead.org/pipermail/linux-arm-kernel/2014-May/252829.html
> 
> Also, I asked for it to be added to this series in this email thread
> but you thought it was benign:
> http://lists.infradead.org/pipermail/linux-arm-kernel/2014-May/252869.html
> So we could probably do without the isb(.).

Bah, I'd completely forgotten all of that! Anyway, I'd say it's up to
the patch removing the existing isb from flush_tlb_kernel_range to fix
the callers, not for other people to anticipate that change.

Even with that change, the isb isn't needed, as mentioned in the second
link above.

Will

  reply	other threads:[~2014-06-03 15:37 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-02 20:57 [PATCHv2 0/4] Page protections for arm64 Laura Abbott
2014-06-02 20:57 ` [PATCHv2 1/4] arm64: Add CONFIG_DEBUG_SET_MODULE_RONX support Laura Abbott
2014-06-03 15:22   ` Will Deacon
2014-06-03 15:31     ` Steve Capper
2014-06-03 15:37       ` Will Deacon [this message]
2014-06-03 16:04         ` Steve Capper
2014-06-04  0:56     ` Laura Abbott
2014-06-04 18:00       ` Will Deacon
2014-06-02 20:57 ` [PATCHv2 2/4] arm64: Treat handle_arch_irq as a function pointer Laura Abbott
2014-06-03  9:13   ` Mark Rutland
2014-06-03  9:36     ` Ard Biesheuvel
2014-06-02 20:57 ` [PATCHv2 3/4] arm64: Switch to ldr for loading the stub vectors Laura Abbott
2014-06-03 15:22   ` Will Deacon
2014-06-02 20:57 ` [PATCHv2 4/4] arm64: add better page protections to arm64 Laura Abbott
2014-06-03 16:04   ` Steve Capper

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