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Subject: Re: [PATCH v13 4/7] drm/i915/skl: Update plane watermarks atomically
 during plane updates
To: Lyude <cpaul@redhat.com>
References: <6048370c-fd04-4a73-8e79-44a90c08b1e4@linux.intel.com>
 <1471884608-10671-1-git-send-email-cpaul@redhat.com>
Cc: stable@vger.kernel.org,
        =?UTF-8?B?VmlsbGUgU3lyasOkbMOk?= <ville.syrjala@linux.intel.com>,
        Daniel Vetter <daniel.vetter@intel.com>,
        Radhakrishna Sripada <radhakrishna.sripada@intel.com>,
        Hans de Goede <hdegoede@redhat.com>,
        Jani Nikula <jani.nikula@linux.intel.com>,
        David Airlie <airlied@linux.ie>, intel-gfx@lists.freedesktop.org,
        dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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Date: Tue, 23 Aug 2016 12:16:29 +0200
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Op 22-08-16 om 18:50 schreef Lyude:
> Thanks to Ville for suggesting this as a potential solution to pipe
> underruns on Skylake.
>
> On Skylake all of the registers for configuring planes, including the
> registers for configuring their watermarks, are double buffered. New
> values written to them won't take effect until said registers are
> "armed", which is done by writing to the PLANE_SURF (or in the case of
> cursor planes, the CURBASE register) register.
Applied, thanks.

Can you resend 6/7 and 7/7?