From: Keith Packard <keithp@keithp.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>,
intel-gfx <intel-gfx@lists.freedesktop.org>,
Eugeni Dodonov <eugeni.dodonov@intel.com>,
stable@kernel.org
Subject: Re: [PATCH] drm/i915: paper over missed irq issues with force wake vodoo
Date: Wed, 04 Jan 2012 18:27:40 -0800 [thread overview]
Message-ID: <86d3aylw83.fsf@sumi.keithp.com> (raw)
In-Reply-To: <1325702445-2231-1-git-send-email-daniel.vetter@ffwll.ch>
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On Wed, 4 Jan 2012 19:40:45 +0100, Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> Two things seem to do the trick on my ivb machine here:
> - prevent the gt from powering down while waiting for seqno
> notification interrupts by grabbing the force_wake in get_irq (and
> dropping it in put_irq again).
> - ordering writes from the ring's CS by reading a CS register, ACTHD
> seems to work.
If this works reliably, you'll deserve a medal...
--
keith.packard@intel.com
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next prev parent reply other threads:[~2012-01-05 2:27 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-04 16:52 [PATCH] drm/i915: paper over missed irq issues with force wake vodoo Daniel Vetter
2012-01-04 18:15 ` Eugeni Dodonov
2012-01-04 18:40 ` Daniel Vetter
2012-01-05 2:27 ` Keith Packard [this message]
2012-01-05 11:13 ` Daniel Vetter
2012-01-05 11:23 ` Eugeni Dodonov
2012-01-05 22:11 ` [PATCH] drm/i915: rip out the HWSTAM missed irq workaround Daniel Vetter
2012-01-05 23:29 ` Ben Widawsky
2012-01-06 16:03 ` Eugeni Dodonov
2012-01-09 22:00 ` Keith Packard
2012-01-09 23:39 ` Daniel Vetter
2012-01-10 2:09 ` Keith Packard
2012-01-10 7:58 ` Daniel Vetter
2012-01-18 0:24 ` Ben Widawsky
2012-01-10 12:20 ` [PATCH] drm/i915: paper over missed irq issues with force wake vodoo Daniel Vetter
2012-01-11 0:51 ` Eric Anholt
2012-01-11 4:44 ` Keith Packard
2012-01-11 6:21 ` Ben Widawsky
2012-01-11 9:59 ` Daniel Vetter
2012-01-11 5:41 ` Kenneth Graunke
2012-01-13 16:42 ` Keith Packard
2012-01-13 23:52 ` Daniel Vetter
2012-01-13 23:55 ` Daniel Vetter
2012-01-14 0:11 ` Keith Packard
2012-01-14 0:31 ` Daniel Vetter
2012-01-14 0:50 ` Keith Packard
2012-01-14 12:12 ` Daniel Vetter
2012-01-15 6:35 ` Keith Packard
2012-01-15 15:03 ` Daniel Vetter
2012-01-16 0:06 ` Keith Packard
2012-01-05 23:29 ` Ben Widawsky
2012-01-08 13:01 ` Daniel Vetter
2012-01-09 5:09 ` Keith Packard
2012-01-06 20:56 ` Keith Packard
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