From: Keith Packard <keithp@keithp.com>
To: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: intel-gfx@lists.freedesktop.org,
Eugeni Dodonov <eugeni.dodonov@intel.com>
Subject: Re: [PATCH 1/2] drm/i915: re-enable semaphores by default
Date: Wed, 16 Nov 2011 13:37:10 -0800 [thread overview]
Message-ID: <yun62ijn3zt.fsf@aiko.keithp.com> (raw)
In-Reply-To: <CAKMK7uFg5fmZL8oTW3tgvk1KyFu5BCu+No1+aK2wcXxZb1SBzA@mail.gmail.com>
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On Wed, 16 Nov 2011 21:18:13 +0100, Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> Last time I've played around with all the combinations, only
> intel_iommu=off was good enough to prevent the hang.
> intel_iommu=igd_off still hangs (which is what the current value
> exported by the dmar code dopends on, iirc). If I remember things
> correctly, intel_iommu=off also reliably works around issues for all
> reporters (both semaphores and rc6).
So, the dmar_disabled flag would suffice? Should be trivial to export
that and check in our driver.
--
keith.packard@intel.com
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next prev parent reply other threads:[~2011-11-16 21:37 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-14 20:39 [PATCH 1/2] drm/i915: re-enable semaphores by default Eugeni Dodonov
2011-11-14 20:39 ` [PATCH 2/2] drm/i915: re-enable rc6 " Eugeni Dodonov
2011-11-14 21:06 ` Lukas Hejtmanek
2011-11-14 23:04 ` Eugeni Dodonov
2011-11-14 23:12 ` Lukas Hejtmanek
2011-11-14 23:17 ` Eugeni Dodonov
2011-11-14 23:23 ` Lukas Hejtmanek
2011-11-14 21:22 ` Jesse Barnes
2011-11-16 15:53 ` Daniel Vetter
[not found] ` <CAObL_7HxAt7B7v+CqgTff+ox5eg-=qLkd8jpZGsGAFFHLx73hw@mail.gmail.com>
2011-11-16 20:22 ` Daniel Vetter
2011-11-14 21:23 ` [PATCH 1/2] drm/i915: re-enable semaphores " Jesse Barnes
2011-11-16 15:49 ` Daniel Vetter
2011-11-16 17:16 ` Keith Packard
2011-11-16 17:24 ` Andrew Lutomirski
2011-11-16 19:05 ` Eugeni Dodonov
2011-11-16 19:23 ` Jesse Barnes
2011-11-16 20:18 ` Daniel Vetter
2011-11-16 21:37 ` Keith Packard [this message]
-- strict thread matches above, loose matches on Subject: below --
2011-11-16 20:56 Nicolas Kalkhof
2011-11-16 21:14 ` Daniel Vetter
2011-11-16 22:15 ` Keith Packard
2011-11-17 8:57 Nicolas Kalkhof
2011-11-17 9:22 ` Daniel Vetter
2011-11-22 5:41 ` Andrew Lutomirski
2011-11-22 11:23 ` Daniel Vetter
2011-11-29 16:39 ` Daniel Vetter
2011-11-17 18:31 Nicolas Kalkhof
2011-11-18 15:26 ` Daniel Vetter
2011-11-18 18:36 Nicolas Kalkhof
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