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Date: Wed, 29 May 2013 17:34:01 +0800 From: Po-Yu Chuang <ratbert.chuang@...il.com> To: Will Deacon <will.deacon@....com> Cc: Sricharan R <r.sricharan@...com>, "linux@....linux.org.uk" <linux@....linux.org.uk>, "nico@...aro.org" <nico@...aro.org>, Catalin Marinas <Catalin.Marinas@....com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "rob.herring@...xeda.com" <rob.herring@...xeda.com>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org> Subject: Re: [PATCH] ARM: map_init_section flushes incorrect pmd Hi Will, On Wed, May 29, 2013 at 4:54 PM, Will Deacon <will.deacon@....com> wrote: > On Wed, May 29, 2013 at 03:14:58AM +0100, Po-Yu Chuang wrote: >> Will, >> I guess nobody noticed this because the MMU of later v7 processors >> fetches page table >> from D-cache. It even doesn't need to clean pmd to PoU. > > It does if it's UP. The walker is only guaranteed to read from L1 if you > have the multiprocessing extensions. Ya, I see. > > As for this function, looks like it's ok because it has precisely one > caller, so it might be worth prefixing it with some underscores to make it > clear that nobody else should be calling it! I am fine with that. Should I create a new patch? Regards, Po-Yu -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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