From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Myron Stowe <myron.stowe@redhat.com>
Cc: linux-pci@vger.kernel.org, linux@arm.linux.org.uk,
vapier@gentoo.org, dhowells@redhat.com,
ysato@users.sourceforge.jp, tony.luck@intel.com,
fenghua.yu@intel.com, monstr@monstr.eu, ralf@linux-mips.org,
benh@kernel.crashing.org, paulus@samba.org, lethal@linux-sh.org,
davem@davemloft.net, cmetcalf@tilera.com, gxt@mprc.pku.edu.cn,
tglx@linutronix.de, mingo@redhat.com, chris@zankel.net,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH -v2 00/16] PCI: Re-factor PCI's 'latency timer' setup
Date: Fri, 11 Nov 2011 09:59:30 -0800 [thread overview]
Message-ID: <20111111095930.22abd773@jbarnes-desktop> (raw)
In-Reply-To: <20111028214726.20088.30551.stgit@amt.stowe>
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On Fri, 28 Oct 2011 15:47:26 -0600
Myron Stowe <myron.stowe@redhat.com> wrote:
> The 'latency timer' of PCI devices, both Type 0 and Type 1,
> is setup in architecture-specific code [see: pcibios_set_master()].
> There are two approaches being taken by all the architectures - check
> if the 'latency timer' is currently set between 16 and 255 and if not
> bring it within bounds, or, do nothing (and then there is the
> gratuitously different parisc implementation).
>
> There is nothing architecture-specific about PCI's 'latency timer' so
> this patch pulls the setup functionality up into the PCI core by
> creating a generic 'pcibios_set_master()' function using the '__weak'
> attribute which can be used by all architectures as a default which,
> if necessary, can then be over-ridden by architecture-specific code.
I have acks from Chris, Ralf, and Mike. Any other arch maintainers
want to ack or nack this before it goes into my -next branch?
Thanks,
--
Jesse Barnes, Intel Open Source Technology Center
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next parent reply other threads:[~2011-11-11 17:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20111028214726.20088.30551.stgit@amt.stowe>
2011-11-11 17:59 ` Jesse Barnes [this message]
2011-11-15 22:43 ` [PATCH -v2 00/16] PCI: Re-factor PCI's 'latency timer' setup Benjamin Herrenschmidt
[not found] ` <20111028214735.20088.19168.stgit@amt.stowe>
2011-12-05 19:06 ` [PATCH -v2 01/16] PCI: add declaration for pcibios_set_master() to pci core Jesse Barnes
2011-12-05 20:32 ` Benjamin Herrenschmidt
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