From: Chris Wilson <chris@chris-wilson.co.uk>
To: Keith Packard <keithp@keithp.com>, intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 6/6] drm/i915: Attach a fb to the load-detect pipe
Date: Wed, 20 Apr 2011 19:55:10 +0100 [thread overview]
Message-ID: <849307$cj6rpk@azsmga001.ch.intel.com> (raw)
In-Reply-To: <yunhb9shig5.fsf@aiko.keithp.com>
On Wed, 20 Apr 2011 11:43:38 -0700, Keith Packard <keithp@keithp.com> wrote:
> On Wed, 20 Apr 2011 10:22:22 +0100, Chris Wilson <chris@chris-wilson.co.uk> wrote:
>
> > For bonus amusement value, we perform the first load detect before even
> > establishing our fbdev.
>
> It seems like we need to be able to perform load detection in this
> case to create a suitable frame buffer at boot time.
Aye, a classic chicken and egg problem. I wanted to ignore it as
everything would have been resized upon the first probe by userspace
(hotplug polling being disabled for load-detect paths), but only after the
probe completes so there is the issue that the fb may be too small and so
we don't prevent all potential PGTBL_ER. And VGA is laso likely to be a
boot device.
I'll spin up a patch for a temporary buffer and see what you think.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
next prev parent reply other threads:[~2011-04-20 18:55 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-20 9:22 Remove dead code from intel_get_load_detect_pipe Chris Wilson
2011-04-20 9:22 ` [PATCH 1/6] drm/i915: Simplify return value " Chris Wilson
2011-04-20 18:10 ` Keith Packard
2011-04-20 18:26 ` [PATCH 1/2] " Chris Wilson
2011-04-20 18:26 ` [PATCH 2/2] drm/i915: Propagate failure to set mode for load-detect pipe Chris Wilson
2011-04-20 9:22 ` [PATCH 2/6] drm/i915: Don't store temporary load-detect variables in the generic encoder Chris Wilson
2011-04-20 18:12 ` Keith Packard
2011-04-20 9:22 ` [PATCH 3/6] drm/i915: Remove unused supported_crtc from intel_load_detect_pipe Chris Wilson
2011-04-20 18:12 ` Keith Packard
2011-04-20 9:22 ` [PATCH 4/6] drm/i915: Pass the saved adjusted_mode when adding to the load-detect crtc Chris Wilson
2011-04-20 18:23 ` Keith Packard
2011-04-20 19:38 ` Chris Wilson
2011-04-20 21:00 ` Keith Packard
2011-04-20 9:22 ` [PATCH 5/6] drm/i915: Remove dead code from intel_get_load_detect_pipe() Chris Wilson
2011-04-20 18:26 ` Keith Packard
2011-04-20 9:22 ` [PATCH 6/6] drm/i915: Attach a fb to the load-detect pipe Chris Wilson
2011-04-20 18:43 ` Keith Packard
2011-04-20 18:55 ` Chris Wilson [this message]
2011-04-20 21:03 ` Keith Packard
2011-04-20 21:43 ` [PATCH] " Chris Wilson
2011-04-21 8:45 ` When in doubt, use a temporary fb Chris Wilson
2011-04-21 8:45 ` [PATCH 1/3] drm/i915: Remove dead code from intel_release_load_detect_pipe() Chris Wilson
2011-04-21 8:45 ` [PATCH 2/3] drm/i915: Attach a fb to the load-detect pipe Chris Wilson
2011-04-21 8:45 ` [PATCH 3/3] drm/i915: Move the tracking of dpms_mode down into crtc enable/disable Chris Wilson
2011-04-20 20:16 ` [PATCH] drm/i915: Attach a fb to the load-detect pipe Chris Wilson
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