From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Keith Packard <keithp@keithp.com>
Cc: Arjan van de Ven <arjan@infradead.org>,
Dave Airlie <airlied@gmail.com>, Dave Airlie <airlied@linux.ie>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: kmap_atomic_pfn for PCI BAR access?
Date: Wed, 25 Jun 2008 22:59:51 -0700 [thread overview]
Message-ID: <48633057.1040106@goop.org> (raw)
In-Reply-To: <1214458589.1044.45.camel@koto.keithp.com>
Keith Packard wrote:
> On Wed, 2008-06-25 at 21:36 -0700, Arjan van de Ven wrote:
>
>
>> well kmap does a tlb flush as well...
>>
>
> kmap_atomic
>
Anything that does any kind of pagetable manipulation needs to do tlb
flushes. kunmap_atomic handles the flushing.
J
next prev parent reply other threads:[~2008-06-26 6:00 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-23 17:34 kmap_atomic_pfn for PCI BAR access? Keith Packard
2008-06-26 1:18 ` Jeremy Fitzhardinge
2008-06-26 1:23 ` Dave Airlie
2008-06-26 3:11 ` Jeremy Fitzhardinge
2008-07-07 6:53 ` Nick Piggin
2008-07-07 7:05 ` Arjan van de Ven
2008-07-07 11:19 ` Nick Piggin
2008-06-26 4:36 ` Arjan van de Ven
2008-06-26 5:02 ` Dave Airlie
2008-06-26 5:33 ` Keith Packard
2008-06-26 5:36 ` Keith Packard
2008-06-26 5:59 ` Jeremy Fitzhardinge [this message]
2008-06-26 6:02 ` Dave Airlie
2008-06-26 10:36 ` Arjan van de Ven
2008-06-26 13:02 ` Arjan van de Ven
2008-06-26 10:34 ` Arjan van de Ven
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