From: Ramalingam C <ramalingam.c@intel.com>
To: Daniel Vetter <daniel@ffwll.ch>,
"Vivi, Rodrigo" <rodrigo.vivi@intel.com>
Cc: intel-gfx <intel-gfx@lists.freedesktop.org>
Subject: Re: Missing notifications for front buffer status change(invalidate)
Date: Wed, 18 Mar 2015 14:23:01 +0530 [thread overview]
Message-ID: <55093CED.4060709@intel.com> (raw)
In-Reply-To: <55093A81.1050701@intel.com>
cc += intel-gfx
On Wednesday 18 March 2015 02:12 PM, Ramalingam C wrote:
> Hi,
>
> Is there anyway I can test the front buffer tracking?
>
> On latest drm-intel-nightly, I am observing that when ubuntu bootsup
> after few secs (like ~15Secs)
> there no call from intel_fb_obj_invalidate() to invalidate the drrs.
>
> But system is healthy and FBs are keep changing. But no notification
> to DRRS for FB status change.
>
> I have verified this by observing the busy_frontbuffer_bits from
> /sys/kernel/debug/dri/0/i915_drrs_status. This bit is not changing at
> all.
> Hence DRRS is stuck at DRRS_LOW_RR itself.
>
> Is it known valid issue? Or am I doing something wrong.!?
>
--
Ram
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next parent reply other threads:[~2015-03-18 8:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <55093A81.1050701@intel.com>
2015-03-18 8:53 ` Ramalingam C [this message]
2015-03-18 9:51 ` Missing notifications for front buffer status change(invalidate) Daniel Vetter
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