linux-kernel - Re: [PATCH v5 1/2] ARM: Pass IFSR register to do

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Message-ID: <cc557aab0910010015i2e471c13mb4529409b3e68e45@mail.gmail.com>
Date:	Thu, 1 Oct 2009 10:15:38 +0300
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	linux-arm-kernel@...ts.infradead.org,
	Russell King <linux@....linux.org.uk>
Cc:	linux-kernel@...r.kernel.org,
	Bityutskiy Artem <Artem.Bityutskiy@...ia.com>,
	Koskinen Aaro <aaro.koskinen@...ia.com>,
	"Kirill A. Shutemov" <kirill@...temov.name>
Subject: Re: [PATCH v5 1/2] ARM: Pass IFSR register to do_PrefetchAbort()

On Thu, Sep 24, 2009 at 11:49 AM, Kirill A. Shutemov
<kirill@...temov.name> wrote:
> Instruction fault status register, IFSR, was introduced on ARMv6 to
> provide status information about the last insturction fault. It
> needed for proper prefetch abort handling.
>
> Now we have three prefetch abort model:
>
>  * legacy - for CPUs before ARMv6. They doesn't provide neither
>    IFSR nor IFAR. We simulate IFSR with section translation fault
>    status for them to generalize code;
>  * ARMv6 - provides IFSR, but not IFAR;
>  * ARMv7 - provides both IFSR and IFAR.
>
> Signed-off-by: Kirill A. Shutemov <kirill@...temov.name>

Any chances to get it into 2.6.32?
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