From: Daniel Vetter <daniel@ffwll.ch>
To: "Michel Dänzer" <michel@daenzer.net>
Cc: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v2 1/3] drm: Add the optional .fb_modifier() hook
Date: Tue, 13 Mar 2018 16:20:30 +0100 [thread overview]
Message-ID: <20180313152030.GI4788@phenom.ffwll.local> (raw)
In-Reply-To: <e08f90ae-abc7-b079-efa4-098e2afc5b92@daenzer.net>
On Tue, Mar 13, 2018 at 03:38:38PM +0100, Michel Dänzer wrote:
> On 2018-03-13 03:28 PM, Ville Syrjala wrote:
> > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >
> > To make it possible for the core to check the fb pixel format and
> > modifier, we need to first ask the driver to deduce the modifier
> > when the request does not explicitly specify one.
> >
> > Add a new .fb_modifier() hook for that purpose and convert i915
> > and vc4 to make use if it. All other drivers seem to currently
> > assume linear when the request does not specify anything else,
> > [...]
>
> That's not true at least for the amdgpu and radeon drivers. The tiling
> mode is communicated via BO metadata.
But atm amdgpu and radeon also don't support explicit modifiers in the
kernel driver, so it again all checks out. Or should at least.
Once you add modifier support, you need to wire up all the bits and the
rigth default selection, and it should again pan out.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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next prev parent reply other threads:[~2018-03-13 15:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-12 20:40 [PATCH 1/3] drm: Add the optional .fb_modifier() hook Ville Syrjala
2018-03-12 20:40 ` [PATCH 2/3] drm: Make sure at least one plane supports the fb format Ville Syrjala
2018-03-15 17:42 ` Eric Anholt
2018-03-15 17:48 ` Ville Syrjälä
2018-03-15 18:03 ` Ville Syrjälä
2018-03-15 18:48 ` Ville Syrjälä
2018-03-16 22:07 ` Eric Anholt
2018-03-12 20:40 ` [PATCH 3/3] drm/i915: Eliminate the horrendous format check code Ville Syrjala
2018-03-12 21:44 ` ✗ Fi.CI.BAT: failure for series starting with [1/3] drm: Add the optional .fb_modifier() hook Patchwork
2018-03-13 14:28 ` [PATCH v2 1/3] " Ville Syrjala
2018-03-13 14:38 ` Michel Dänzer
2018-03-13 15:12 ` Ville Syrjälä
2018-03-13 15:18 ` Michel Dänzer
2018-03-13 15:20 ` Daniel Vetter [this message]
2018-03-13 15:35 ` Michel Dänzer
2018-03-13 15:46 ` Ville Syrjälä
2018-03-13 16:06 ` ✓ Fi.CI.BAT: success for series starting with [v2,1/3] drm: Add the optional .fb_modifier() hook (rev2) Patchwork
2018-03-13 16:56 ` ✗ Fi.CI.IGT: failure " Patchwork
2018-03-13 17:03 ` Ville Syrjälä
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