From: mail@pawelmoll.com (Pawel Moll)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC] mmaping with VIVT cache
Date: Mon, 20 Sep 2010 12:31:35 +0100 [thread overview]
Message-ID: <289feaf81f35dca3b83a210929832c5b@cox.rootnode.net> (raw)
In-Reply-To: <20100920105019.GB30793@n2100.arm.linux.org.uk>
> pgprot_noncached will be unsafe on ARMv6 and ARMv7 architectures when
> used for mapping existing memory, as you'll be violating an architectural
> restriction (having aliasing mappings of memory as 'Strongly ordered'
> when there is a pre-existing 'Memory' type mapping.)
> adead.org/mailman/listinfo/linux-arm-kernel
Oh, I'm not concerned about it - it was a custom hack in order to get a
"sh-customer" running. I've just mentioned it as an example that the
problem is real and encountered by different people in different
places...
Pawe?
next prev parent reply other threads:[~2010-09-20 11:31 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-17 19:07 [RFC] mmaping with VIVT cache P F
2010-09-17 21:06 ` Russell King - ARM Linux
2010-09-20 10:38 ` Pawel Moll
2010-09-20 10:50 ` Russell King - ARM Linux
2010-09-20 11:31 ` Pawel Moll [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-09-16 0:25 P F
2010-09-16 23:05 ` Russell King - ARM Linux
2010-09-13 19:58 P F
2010-09-14 23:50 ` Russell King - ARM Linux
2010-09-15 1:06 ` Eric Miao
2010-09-15 7:31 ` Russell King - ARM Linux
2010-09-15 7:37 ` Eric Miao
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