From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Alex Deucher <alexdeucher@gmail.com>
Cc: Maling list - DRI developers <dri-devel@lists.freedesktop.org>,
Jerome Glisse <jglisse@redhat.com>,
Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>,
Brian King <brking@linux.vnet.ibm.com>
Subject: Re: [PATCH] drm/radeon: Disable writeback by default on ppc
Date: Thu, 05 Dec 2013 12:39:31 +1100 [thread overview]
Message-ID: <1386207571.21910.0.camel@pasglop> (raw)
In-Reply-To: <CADnq5_Ps2_h72vErpJ-QdB2YYASjdRUiP4U3OtWCGihdzGAAQQ@mail.gmail.com>
On Wed, 2013-12-04 at 19:05 -0500, Alex Deucher wrote:
> > Setting CP_RB_CNTL.BUF_SWAP causes the CP to use the selected byte
> > swapping for just about everything accessed by the CP (rptr writeback,
> > indirect buffers, etc.). Looks like the DMA ring supports and enables
> > rptr writeback as well (DMA_RB_CNTL.DMA_RPTR_WRITEBACK_SWAP_ENABLE) so
> > I think we can drop the swapping of the rptr writeback.
> >
>
> Obvious patch attached.
This works all the way back to r300 ?
Cheers,
Ben.
next prev parent reply other threads:[~2013-12-05 1:39 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-17 14:06 [PATCH] drm/radeon: Disable writeback by default on ppc Adam Jackson
2013-06-17 15:04 ` Alex Deucher
2013-06-17 16:07 ` Adam Jackson
2013-06-17 22:57 ` Alex Deucher
2013-11-07 22:29 ` Benjamin Herrenschmidt
2013-11-08 13:43 ` Kleber Sacilotto de Souza
2013-11-24 23:15 ` Benjamin Herrenschmidt
2013-11-26 0:11 ` Kleber Sacilotto de Souza
2013-12-04 22:16 ` Kleber Sacilotto de Souza
2013-12-04 23:56 ` Alex Deucher
2013-12-05 0:05 ` Alex Deucher
2013-12-05 1:39 ` Benjamin Herrenschmidt [this message]
2013-12-05 2:29 ` Michel Dänzer
2013-12-05 4:06 ` Benjamin Herrenschmidt
2013-12-05 14:42 ` Alex Deucher
2013-12-06 13:58 ` Kleber Sacilotto de Souza
2013-12-06 15:59 ` Alex Deucher
2013-12-10 0:48 ` Alex Deucher
2013-12-10 2:20 ` Michel Dänzer
2013-12-10 15:04 ` Alex Deucher
2013-12-10 15:12 ` Alex Deucher
2014-01-02 20:54 ` Kleber Sacilotto de Souza
2014-01-02 22:48 ` Alex Deucher
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