From: Yingjoe Chen <yingjoe.chen@mediatek.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: <linux-arm-kernel@lists.infradead.org>,
Mark Rutland <mark.rutland@arm.com>, <devicetree@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>,
<srv_heupstream@mediatek.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Joerg Roedel <joro@8bytes.org>, Will Deacon <will.deacon@arm.com>,
<linux-kernel@vger.kernel.org>, Tomasz Figa <tfiga@google.com>,
<iommu@lists.linux-foundation.org>,
Rob Herring <robh+dt@kernel.org>,
Daniel Kurtz <djkurtz@google.com>,
Sasha Hauer <kernel@pengutronix.de>,
Matthias Brugger <matthias.bgg@gmail.com>,
Robin Murphy <robin.murphy@arm.com>, <yong.wu@mediatek.com>,
Lucas Stach <l.stach@pengutronix.de>
Subject: Re: [PATCH 1/5] soc: mediatek: Add SMI driver
Date: Tue, 10 Mar 2015 14:27:04 +0800 [thread overview]
Message-ID: <1425968824.4871.146.camel@mtksdaap41> (raw)
In-Reply-To: <2583132.xxsZocsQta@wuerfel>
On Mon, 2015-03-09 at 22:56 +0100, Arnd Bergmann wrote:
> On Monday 09 March 2015 11:26:52 Yingjoe Chen wrote:
> > On Fri, 2015-03-06 at 18:48 +0800, yong.wu@mediatek.com wrote:
> > > From: Yong Wu <yong.wu@mediatek.com>
> > >
> > > This patch add SMI(Smart Multimedia Interface) driver. This driver is
> > > responsible to enable/disable iommu and control the clocks of each
> > > local arbiter.
> > >
> > > Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> > > ---
> > > drivers/soc/mediatek/Kconfig | 7 ++
> > > drivers/soc/mediatek/Makefile | 1 +
> > > drivers/soc/mediatek/mt8173-smi.c | 143 ++++++++++++++++++++++++++++++++++++++
> > > include/linux/mtk-smi.h | 40 +++++++++++
> > > 4 files changed, 191 insertions(+)
> > > create mode 100644 drivers/soc/mediatek/mt8173-smi.c
> > > create mode 100644 include/linux/mtk-smi.h
> > >
> >
> > Hi Arnd, Matthias,
> >
> > For the SMI driver, we can't find a better place, so we put it in
> > drivers/soc/mediatek now. Please let us know if you have any suggestion
> > or concern. Thanks
>
> From what I understand from your description, I think it would better
> fit in drivers/iommu. Another option is drivers/memory, which I think
> is where the respective Tegra driver ended up.
Hi Arnd,
The description above only describe what is implemented now. Besides
that, SMI HW also does:
- Prioritize/arbitrate memory requests between different ports & larbs.
- Bandwidth limiter
- Performance monitor
I think drivers/memory make more sense. I can't find info about
drivers/memory in MAINTAINERS. Can this go through ARM SoC tree if we
put SMI driver there?
Joe.C
next prev parent reply other threads:[~2015-03-10 6:27 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-06 10:48 [RFC PATCH 0/5] MT8173 IOMMU support yong.wu
2015-03-06 10:48 ` [PATCH 1/5] soc: mediatek: Add SMI driver yong.wu
2015-03-06 11:30 ` Paul Bolle
2015-03-09 11:57 ` Yong Wu
2015-03-09 17:59 ` Paul Bolle
2015-03-09 21:54 ` Arnd Bergmann
2015-03-10 6:17 ` Yingjoe Chen
2015-03-09 3:26 ` Yingjoe Chen
2015-03-09 21:56 ` Arnd Bergmann
2015-03-10 6:27 ` Yingjoe Chen [this message]
2015-03-10 9:05 ` Arnd Bergmann
2015-03-10 9:24 ` Lucas Stach
2015-03-09 11:03 ` Sascha Hauer
2015-03-06 10:48 ` [PATCH 2/5] iommu/mediatek: Add mt8173 IOMMU driver yong.wu
2015-03-06 10:58 ` Will Deacon
2015-03-09 12:11 ` Yong Wu
2015-03-17 15:14 ` Will Deacon
2015-03-06 17:15 ` Mitchel Humpherys
2015-03-09 12:16 ` Yong Wu
2015-03-09 16:57 ` Mitchel Humpherys
2015-03-08 4:12 ` Tomasz Figa
2015-03-12 14:16 ` Yong Wu
2015-03-09 8:24 ` Daniel Kurtz
2015-03-09 11:11 ` Tomasz Figa
2015-03-09 14:46 ` Yingjoe Chen
2015-03-09 17:00 ` Tomasz Figa
2015-03-10 3:41 ` Yingjoe Chen
2015-03-10 4:06 ` Tomasz Figa
2015-03-11 10:53 ` Tomasz Figa
2015-03-18 11:22 ` Yong Wu
2015-03-20 19:14 ` Robin Murphy
2015-04-14 6:50 ` Yong Wu
2015-03-27 9:41 ` Tomasz Figa
2015-04-14 6:31 ` Yong Wu
2015-04-15 2:20 ` Tomasz Figa
2015-04-15 7:06 ` Yong Wu
2015-04-15 7:41 ` Tomasz Figa
2015-04-29 6:23 ` Yong Wu
2015-03-06 10:48 ` [PATCH 3/5] dt-bindings: mediatek: Add smi dts binding yong.wu
2015-03-06 11:13 ` Mark Rutland
2015-03-09 12:55 ` Yong Wu
2015-04-14 9:07 ` Yong Wu
2015-04-14 10:06 ` Mark Rutland
2015-04-14 13:49 ` Yong Wu
2015-04-14 13:55 ` Yong Wu
2015-04-14 13:56 ` Mark Rutland
2015-03-06 14:48 ` Sergei Shtylyov
2015-03-09 12:32 ` Yong Wu
2015-03-06 10:48 ` [PATCH 4/5] dt-bindings: iommu: Add binding for mediatek IOMMU yong.wu
2015-03-06 11:21 ` Mark Rutland
2015-03-09 11:30 ` Yong Wu
2015-03-06 10:48 ` [PATCH 5/5] dts: mt8173: Add iommu/smi nodes for mt8173 yong.wu
2015-03-07 15:20 ` Daniel Kurtz
2015-03-09 12:18 ` Yong Wu
-- strict thread matches above, loose matches on Subject: below --
2015-03-06 10:37 [RFC PATCH 0/5] MT8173 IOMMU support yong.wu
2015-03-06 10:37 ` [PATCH 1/5] soc: mediatek: Add SMI driver yong.wu
2015-03-09 7:51 ` Daniel Kurtz
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1425968824.4871.146.camel@mtksdaap41 \
--to=yingjoe.chen@mediatek.com \
--cc=arnd@arndb.de \
--cc=catalin.marinas@arm.com \
--cc=devicetree@vger.kernel.org \
--cc=djkurtz@google.com \
--cc=iommu@lists.linux-foundation.org \
--cc=joro@8bytes.org \
--cc=kernel@pengutronix.de \
--cc=l.stach@pengutronix.de \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=mark.rutland@arm.com \
--cc=matthias.bgg@gmail.com \
--cc=robh+dt@kernel.org \
--cc=robin.murphy@arm.com \
--cc=srv_heupstream@mediatek.com \
--cc=tfiga@google.com \
--cc=will.deacon@arm.com \
--cc=yong.wu@mediatek.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).