From: Sean Anderson <sean.anderson@linux.dev>
To: Thomas Zimmermann <tzimmermann@suse.de>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org,
Mike Looijmans <mike.looijmans@topic.nl>,
David Airlie <airlied@gmail.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Anatoliy Klymenko <anatoliy.klymenko@amd.com>,
Maxime Ripard <mripard@kernel.org>,
linux-arm-kernel@lists.infradead.org,
Simona Vetter <simona@ffwll.ch>,
Michal Simek <michal.simek@amd.com>
Subject: Re: [PATCH 0/3] drm: zynqmp: Make the video plane primary
Date: Fri, 14 Nov 2025 10:35:10 -0500 [thread overview]
Message-ID: <24a9a9a2-ba7c-4619-96dc-4355d850561b@linux.dev> (raw)
In-Reply-To: <36048dd7-796f-495d-b715-d8f65a7c2f98@suse.de>
Hi Thomas,
On 11/14/25 02:42, Thomas Zimmermann wrote:
> Hi
>
> Am 13.11.25 um 21:37 schrieb Sean Anderson:
>> The graphics plane does not support XRGB8888, which is the default mode
>> X uses for 24-bit color. Because of this, X must be set to use 16-bit
>> color, which has a measurable performance penalty. Make the video plane
>> the primary plane as it natively supports XRGB8888. An alternative
>> approach to add XRGB8888 to the graphics plane is discussed in [1], as
>> well as in patch 2.
>
> Did you try to set drm_device.mode_config.preferred_depth = 16, like at [1]? IIRC user space looks at this value to auto-detect the color format.
I have not tried that. But I would rather use 24-bit color for the performance boost.
--Sean
next prev parent reply other threads:[~2025-11-14 15:35 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-13 20:37 [PATCH 0/3] drm: zynqmp: Make the video plane primary Sean Anderson
2025-11-13 20:37 ` [PATCH 1/3] drm: zynqmp: Check property creation status Sean Anderson
2025-11-13 23:05 ` Klymenko, Anatoliy
2025-11-14 7:36 ` Thomas Zimmermann
2025-11-13 20:37 ` [PATCH 2/3] drm: zynqmp: Make the video plane primary Sean Anderson
2025-11-13 22:45 ` Klymenko, Anatoliy
2025-11-13 22:51 ` Sean Anderson
2025-11-15 0:57 ` Klymenko, Anatoliy
2025-11-17 16:09 ` Sean Anderson
2025-12-04 22:33 ` Klymenko, Anatoliy
2025-11-13 20:37 ` [PATCH 3/3] drm: zynqmp: Add blend mode property to graphics plane Sean Anderson
2025-11-13 23:03 ` Klymenko, Anatoliy
2025-11-13 23:07 ` Sean Anderson
2025-11-15 0:12 ` Klymenko, Anatoliy
2025-11-17 15:35 ` Sean Anderson
2025-12-04 21:16 ` Klymenko, Anatoliy
2025-11-13 23:59 ` Klymenko, Anatoliy
2025-11-14 15:35 ` Sean Anderson
2025-11-14 7:42 ` [PATCH 0/3] drm: zynqmp: Make the video plane primary Thomas Zimmermann
2025-11-14 15:35 ` Sean Anderson [this message]
2025-12-22 9:29 ` Mikko Rapeli
2025-12-22 9:42 ` Mikko Rapeli
2025-12-22 9:48 ` Tomi Valkeinen
2025-12-22 16:13 ` Mike Looijmans
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