From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark yao Subject: Re: [PATCH v9 1/3] drm: rockchip: Add basic drm driver Date: Wed, 08 Oct 2014 09:17:28 +0800 Message-ID: <543490A8.7030807@rock-chips.com> References: <1412081870-27535-1-git-send-email-mark.yao@rock-chips.com> <1412082181-27703-1-git-send-email-mark.yao@rock-chips.com> <542AB0B2.6000207@samsung.com> <54336474.1010503@rock-chips.com> <54338484.5070809@samsung.com> <1412720776.2797.8.camel@snewbury.org.uk> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0643982502==" Return-path: In-Reply-To: <1412720776.2797.8.camel@snewbury.org.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Steven Newbury , Andrzej Hajda Cc: Mark Rutland , heiko@sntech.de, linux-doc@vger.kernel.org, kever.yang@rock-chips.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, xjq@rock-chips.com, zyw@rock-chips.com, linux-api@vger.kernel.org, cym@rock-chips.com, linux-rockchip@lists.infradead.org, kfx@rock-chips.com, Grant Likely , wxt@rock-chips.com, huangtao@rock-chips.com, devicetree@vger.kernel.org, Pawel Moll , Ian Campbell , yxj@rock-chips.com, cf@rock-chips.com, Rob Herring , marcheu@chromium.org, xxm@rock-chips.com, xw@rock-chips.com, Greg Kroah-Hartman , Randy Dunlap , dianders@chromium.org, Kumar Gala List-Id: linux-api@vger.kernel.org This is a multi-part message in MIME format. --===============0643982502== Content-Type: multipart/alternative; boundary="------------050904020308080707000201" This is a multi-part message in MIME format. --------------050904020308080707000201 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Hi Steven I'm glad to see you to discuss about rk29xx. On 2014=E5=B9=B410=E6=9C=8808=E6=97=A5 06:26, Steven Newbury wrote: > I've just been discussing how this relates to rk29xx on #etnaviv. I > looked through the patch and it's good to see it's not limited to > supporting Mali GPUs. I see no reason this wouldn't be compatible > with etna_viv for rk29xx (or future Rockchip designs with alternative > GPUs) as long as the rest of the infrastructure to support rk29 is in > place iommu (ARM SMMU?) driver, for example. Now the drm driver only test on rk3288, and future when we add=20 compatible for rk29xx, we would consider to add a non-iommu path for it. > IMHO it's vital to keep a logical separation between the video display > hardware and the graphics processor on SoCs. Sure, the graphics processor maybe change in different solutions,=20 logical separation is that we try to keep. Regards -=EF=BC=ADark --------------050904020308080707000201 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

Hi Steven
=C2=A0=C2=A0=C2=A0 I'm glad to see you to discuss about rk29xx.

On 2014=E5=B9=B410=E6=9C=8808=E6=97=A5 06:26, Steven Newbury wrote:=

I've just been discussing how this relates to rk29xx=
 on #etnaviv.  I=20
looked through the patch and it's good to see it's not limited to=20
supporting Mali GPUs.  I see no reason this wouldn't be compatible=20
with etna_viv for rk29xx (or future Rockchip designs with alternative=20
GPUs) as long as the rest of the infrastructure to support rk29 is in=20
place iommu (ARM SMMU?) driver, for example.

Now the drm driver only test on rk3288, and future when we add compatible for rk29xx, we
would consider to add a non-iommu path for it.

IMHO it's vital to keep a logical separation between the video display=20
hardware and the graphics processor on SoCs.

Sure, the graphics processor maybe change in different solutions,=C2=A0 logical separation is that we
try to keep.

Regards
-=EF=BC=ADark
--------------050904020308080707000201-- --===============0643982502== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel --===============0643982502==--