From: Eric Anholt <eric@anholt.net>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: intel-gfx <intel-gfx@lists.freedesktop.org>
Subject: Re: [PATCH 9/9] drm/i915: swizzling support for snb/ivb
Date: Fri, 11 Nov 2011 11:58:23 -0800 [thread overview]
Message-ID: <87bosiqvmo.fsf@eliezer.anholt.net> (raw)
In-Reply-To: <CAKMK7uF0BFmePHnHHoMEzh5UfMCmretKPnAhBV6emA2FW7MZoQ@mail.gmail.com>
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On Fri, 11 Nov 2011 20:51:35 +0100, Daniel Vetter <daniel@ffwll.ch> wrote:
> On Fri, Nov 11, 2011 at 20:37, Eric Anholt <eric@anholt.net> wrote:
> > I was assuming you were working on this because you were planning on
> > building something that *used* this swizzling. We removed all the
> > userland because we never got it to actually work.
>
> I have started to look into the swizzle test because we absolutely
> need correct swizzle information for swapout/in. Doing a pread/pwrite
> instead of forcing the machine to swap simply gets the results much
> quicker (but I plan to have a separate swap test, too). While
> wrestling around with swizzling I've just added in the gen6+ stuff
> here, which I've noticed a while back on bspec review. And it indeed
> seems to speed things up a wee bit.
>
> I certainly don't plan to use this swizzle information in real
> userspace clients ;-) but hopefully this work leads to a more correct
> swap code.
Oh, yeah, swap. Good point, sounds like a plan. If you manage to get
reliable swapping of tiled data on 945g, I'll owe you all the beers.
(But not if you use the blitter to untile for swapping or something.
That would just be cheating)
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next prev parent reply other threads:[~2011-11-11 19:58 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-10 13:17 [PATCH 0/9] gpu hang and swizzle patches Daniel Vetter
2011-11-10 13:17 ` [PATCH 1/9] drm/i915: refactor debugfs open function Daniel Vetter
2011-11-10 19:25 ` Ben Widawsky
2011-11-10 13:18 ` [PATCH 2/9] drm/i915: refactor debugfs create functions Daniel Vetter
2011-11-10 19:26 ` Ben Widawsky
2011-11-10 13:18 ` [PATCH 3/9] drm/i915: add interface to simulate gpu hangs Daniel Vetter
2011-11-10 16:34 ` [PATCH] " Daniel Vetter
2011-12-02 22:21 ` Daniel Vetter
2011-12-03 1:33 ` Chris Wilson
2011-12-05 23:20 ` Ben Widawsky
2011-11-10 13:18 ` [PATCH 4/9] drm/i915: rework dev->first_error locking Daniel Vetter
2011-11-27 19:31 ` [PATCH] " Daniel Vetter
2011-11-10 13:18 ` [PATCH 5/9] drm/i915: destroy existing error_state when simulating a gpu hang Daniel Vetter
2011-11-10 13:18 ` [PATCH 6/9] drm/i915: fix swizzle detection for gen3 Daniel Vetter
2011-11-10 16:36 ` [PATCH] " Daniel Vetter
2011-11-10 13:18 ` [PATCH 7/9] drm/i915: add debugfs file for swizzling information Daniel Vetter
2011-11-10 16:39 ` [PATCH] " Daniel Vetter
2011-11-10 13:18 ` [PATCH 8/9] drm/i915: add gen6+ registers to i915_swizzle_info Daniel Vetter
2011-11-10 13:18 ` [PATCH 9/9] drm/i915: swizzling support for snb/ivb Daniel Vetter
2011-11-11 16:50 ` Eric Anholt
2011-11-11 17:22 ` Daniel Vetter
2011-11-11 19:37 ` Eric Anholt
2011-11-11 19:51 ` Daniel Vetter
2011-11-11 19:58 ` Eric Anholt [this message]
2011-11-11 20:18 ` Daniel Vetter
2011-11-14 16:19 ` Eric Anholt
2011-11-11 0:15 ` [PATCH 0/9] gpu hang and swizzle patches Chris Wilson
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