From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
To: Gabriele Gorla <gorlik@penguintown.net>
Cc: rth@twiddle.net, gregkh@suse.de, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH 2.6.15.3] alpha/pci: set cache line size for cards ignored by SRM
Date: Wed, 8 Feb 2006 11:38:38 +0300 [thread overview]
Message-ID: <20060208113838.A28024@jurassic.park.msu.ru> (raw)
In-Reply-To: <37389.10.0.0.8.1139352883.squirrel@mail>; from gorlik@penguintown.net on Tue, Feb 07, 2006 at 02:54:43PM -0800
On Tue, Feb 07, 2006 at 02:54:43PM -0800, Gabriele Gorla wrote:
> Set the cache line size in the PCI configuration space to a reasonable
> value. SRM does not seem to set this register for the PCI cards that it
> does not recognize. This makes drivers that expect cache line size to be
> set by the card bios work on alpha.
I don't see such drivers in the mainline.
Anyhow, the PCI_CACHE_LINE_SIZE setting is critical only for devices
that do memory-write-invalidate. In this case a driver must call
pci_set_mwi() which takes care of PCI_CACHE_LINE_SIZE.
The patch is NAKed.
Ivan.
next prev parent reply other threads:[~2006-02-08 8:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-07 22:54 Gabriele Gorla
2006-02-08 8:38 ` Ivan Kokshaysky [this message]
2006-02-13 2:17 ` Gabriele Gorla
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