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From: Daniel Vetter <daniel@ffwll.ch>
To: Damien Lespiau <damien.lespiau@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 07/10] drm/i915/skl: Don't advertize ARGB2101010 and ABGR2101010
Date: Tue, 12 May 2015 18:48:27 +0200	[thread overview]
Message-ID: <20150512164827.GK15256@phenom.ffwll.local> (raw)
In-Reply-To: <20150512161847.GC15782@strange.ger.corp.intel.com>

On Tue, May 12, 2015 at 05:18:47PM +0100, Damien Lespiau wrote:
> On Tue, May 12, 2015 at 06:13:25PM +0200, Daniel Vetter wrote:
> > On Tue, May 12, 2015 at 04:13:19PM +0100, Damien Lespiau wrote:
> > > While we have been historically exposing those formats, but the hardware
> > > doesn't do anything with the alpha bits. The DDX doesn't seem to
> > > particularly care about those formats either, so just expose the
> > > XRGB/XBGR variants.
> > > 
> > > Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
> > 
> > We have this problem with all the primary planes. Imo we should remove
> > this everywhere, since the ddx doesn't seem to care.
> 
> Well technically that'd be breaking ABI (very unlikely, but still). So
> I'd rather have this SKL-specific patch (because we haven't committed to
> SKL just yet) separate from the patch removing the formats for previous
> platforms in case we need to revert. I'll cook the patch for previous
> platform as a follow up.

It's only breaking ABI if someone notices, which is wiggle room we exploit
a _lot_ to fix up past mistakes. I'm ok with merging the skl and pre-skl
parts as two patches in case of reverting, but I really think we should do
them all in one go.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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  reply	other threads:[~2015-05-12 16:46 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-12 15:13 [PATCH 00/10] Expose the same formats for SKL primary/sprite planes Damien Lespiau
2015-05-12 15:13 ` [PATCH 01/10] drm/i915/skl: Leave a new line between variable declarations and code Damien Lespiau
2015-05-14  5:19   ` Konduru, Chandra
2015-05-12 15:13 ` [PATCH 02/10] drm/i915/skl: Add a new line before return Damien Lespiau
2015-05-14  5:20   ` Konduru, Chandra
2015-05-12 15:13 ` [PATCH 03/10] drm/i915/skl: Rename a local variable to fit in 80 chars Damien Lespiau
2015-05-12 16:20   ` Ville Syrjälä
2015-05-14  5:20   ` Konduru, Chandra
2015-05-12 15:13 ` [PATCH 04/10] drm/i915/skl: Replace BUG() by MISSING_CASE() in skl_plane_ctl_format() Damien Lespiau
2015-05-14  5:24   ` Konduru, Chandra
2015-05-12 15:13 ` [PATCH 05/10] drm/i915/skl: Support the advertized index format Damien Lespiau
2015-05-14  5:24   ` Konduru, Chandra
2015-05-12 15:13 ` [PATCH 06/10] drm/i915: Don't use the intel_ prefix for gen-specific data Damien Lespiau
2015-05-12 16:04   ` Daniel Vetter
2015-05-12 16:09     ` Daniel Vetter
2015-05-12 15:13 ` [PATCH 07/10] drm/i915/skl: Don't advertize ARGB2101010 and ABGR2101010 Damien Lespiau
2015-05-12 16:13   ` Daniel Vetter
2015-05-12 16:18     ` Damien Lespiau
2015-05-12 16:48       ` Daniel Vetter [this message]
2015-05-12 16:29   ` Ville Syrjälä
2015-05-12 15:13 ` [PATCH 08/10] drm/i915/skl: Make primary and sprite plane advertize the same formats Damien Lespiau
2015-05-12 16:14   ` Daniel Vetter
2015-05-12 16:33   ` Ville Syrjälä
2015-05-12 15:13 ` [PATCH 09/10] drm/i915/skl: Factor skl_plane_get_formats() Damien Lespiau
2015-05-12 15:13 ` [PATCH 10/10] drm/i915: Make the sprite formats const Damien Lespiau
2015-05-12 16:14   ` Daniel Vetter

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