From: Shawn Guo <shawnguo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Liu Gang <Gang.Liu-3arQi8VN3Tc@public.gmane.org>
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
minghuan.lian-3arQi8VN3Tc@public.gmane.org,
leoyang.li-3arQi8VN3Tc@public.gmane.org,
mingkai.hu-3arQi8VN3Tc@public.gmane.org,
scott.wood-3arQi8VN3Tc@public.gmane.org
Subject: Re: [PATCH] PCI: layerscape: Add 'dma-coherent' property
Date: Thu, 16 Jun 2016 08:43:41 +0800 [thread overview]
Message-ID: <20160616004341.GK20243@tiger> (raw)
In-Reply-To: <1465282546-28256-1-git-send-email-Gang.Liu-3arQi8VN3Tc@public.gmane.org>
On Tue, Jun 07, 2016 at 02:55:45PM +0800, Liu Gang wrote:
> Add 'dma-coherent' description for PCI nodes.
>
> The 'dma-coherent' indicates that the hardware IP block can ensure
> the coherency of the data transferred from/to the IP block. This
> can avoid the software cache flush/invalid actions, and improve
> the performance significantly.
>
> The PCI IP block of ls1043a has this capability, so adding
> this feature to improve the PCI performance.
>
> Signed-off-by: Liu Gang <Gang.Liu-3arQi8VN3Tc@public.gmane.org>
Applied both, thanks.
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prev parent reply other threads:[~2016-06-16 0:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-07 6:55 [PATCH] PCI: layerscape: Add 'dma-coherent' property Liu Gang
2016-06-07 6:55 ` [PATCH] arm64: dts: ls1043a: Add 'dma-coherent' for ls1043a PCI nodes Liu Gang
2016-06-08 20:31 ` Scott Wood
2016-06-12 3:00 ` Gang Liu
2016-06-08 19:54 ` [PATCH] PCI: layerscape: Add 'dma-coherent' property Rob Herring
[not found] ` <1465282546-28256-1-git-send-email-Gang.Liu-3arQi8VN3Tc@public.gmane.org>
2016-06-07 10:03 ` Robin Murphy
2016-06-16 0:43 ` Shawn Guo [this message]
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