From: Catalin Marinas <catalin.marinas@arm.com>
To: Valdis.Kletnieks@vt.edu
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
Siarhei Siamashka <siarhei.siamashka@nokia.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Aaro Koskinen <aaro.koskinen@nokia.com>
Subject: Re: [PATCH] Handle instruction cache maintenance fault properly
Date: Mon, 10 May 2010 15:54:35 +0100 [thread overview]
Message-ID: <1273503275.10282.63.camel@e102109-lin.cambridge.arm.com> (raw)
In-Reply-To: <7529.1273503128@localhost>
On Mon, 2010-05-10 at 15:52 +0100, Valdis.Kletnieks@vt.edu wrote:
> On Mon, 10 May 2010 16:34:57 +0300, "Kirill A. Shutemov" said:
>
> > It looks like cache maintenance fault was introduced in ARMv6.
> >
> > So, what is the right way to fix it? Something like:
> >
> > #if __LINUX_ARM_ARCH__ < 6
> > { do_bad, SIGBUS, 0, "external
>
> This would need to be a runtime test, no? Or does LINUX_ARM_ARCH not allow
> it to run on other arch levels? (i.e. can an ARM kernel boot for v5 and v6?)
v6 and v7 probably but I doubt v5 and v6 would work. There are other
#ifdefs in arch/arm/include/asm/system.h like barriers.
--
Catalin
prev parent reply other threads:[~2010-05-10 14:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-10 13:07 Kirill A. Shutemov
2010-05-10 13:15 ` Russell King - ARM Linux
2010-05-10 13:34 ` Kirill A. Shutemov
2010-05-10 14:52 ` Valdis.Kletnieks
2010-05-10 14:54 ` Catalin Marinas [this message]
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