From: Ben Widawsky <ben@bwidawsk.net>
To: Eric Anholt <eric@anholt.net>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [RFC] non-blocking map
Date: Fri, 12 Aug 2011 17:59:12 -0700 [thread overview]
Message-ID: <20110813005901.GA22606@seagal> (raw)
In-Reply-To: <877h6i1a7i.fsf@eliezer.anholt.net>
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On Fri, Aug 12, 2011 at 04:28:17PM -0700, Eric Anholt wrote:
> On Thu, 11 Aug 2011 18:19:40 -0700, Ben Widawsky <ben@bwidawsk.net> wrote:
> Non-text part: multipart/mixed
> Non-text part: multipart/signed
> > On Thu, Aug 11, 2011 at 05:56:21PM -0700, Keith Packard wrote:
> > > On Thu, 11 Aug 2011 17:47:24 -0700, Ben Widawsky <ben@bwidawsk.net> wrote:
> > >
> > > > These are dirty hacks just to enable testing write only non-blocking
> > > > maps. I haven't yet created a good test, but maybe someone can shoot
> > > > this down before I waste more time :).
> > >
> > > What's the planned usage?
> >
> > It's supposed to speed up things like map_range_buffer which tend to do
> > write only operations and shouldn't have to do a blocking set domain for
> > write only actions (read only from GPU).
>
> I think for write-only ARB_mbr we want to be using GTT mappings, not CPU
> mappings.
I'm also planning to do this for GTT mappings, but that was harder and I
thought this might also be of some benefit.
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prev parent reply other threads:[~2011-08-13 0:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-12 0:47 [RFC] non-blocking map Ben Widawsky
2011-08-12 0:47 ` [PATCH 1/2] drm/i915: add assumed cpu-dirtied flush Ben Widawsky
2011-08-12 1:18 ` Ben Widawsky
2011-08-12 0:47 ` [PATCH 2/2] drm/i915: Assume size & 1 means WO map (hack) Ben Widawsky
2011-08-12 0:47 ` [PATCH] intel: hack to allow WO mappings Ben Widawsky
2011-08-12 0:56 ` [RFC] non-blocking map Keith Packard
2011-08-12 1:19 ` Ben Widawsky
2011-08-12 23:28 ` Eric Anholt
2011-08-13 0:59 ` Ben Widawsky [this message]
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