From: "Sven Peter" <sven@svenpeter.dev>
To: "Alyssa Rosenzweig" <alyssa@rosenzweig.io>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>,
"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
"Maxime Ripard" <mripard@kernel.org>,
"Thomas Zimmermann" <tzimmermann@suse.de>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
asahi@lists.linux.dev,
"Faith Ekstrand" <faith.ekstrand@collabora.com>
Subject: Re: [PATCH v3] drm: add modifiers for Apple GPU layouts
Date: Sun, 02 Mar 2025 17:02:51 +0100 [thread overview]
Message-ID: <5a4b80f3-c121-4d5e-ae88-442a8480d285@app.fastmail.com> (raw)
In-Reply-To: <20250301-apple-twiddled-modifiers-v3-1-4b9bb79825fe@rosenzweig.io>
On Sat, Mar 1, 2025, at 23:01, Alyssa Rosenzweig wrote:
> Apple GPUs support various non-linear image layouts. Add modifiers for
> these layouts. Mesa requires these modifiers to share non-linear buffers
> across processes, but no other userspace or kernel support is
> required/expected.
>
> These layouts are notably not used for interchange across hardware
> blocks (e.g. with the display controller). There are other layouts for
> that but we don't support them either in userspace or kernelspace yet
> (even downstream), so we don't add modifiers here.
>
> Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
> ---
I don't understand much about GPUs but the explanation here is clear enough even for me.
Reviewed-by: Sven Peter <sven@svenpeter.dev>
Best,
Sven
prev parent reply other threads:[~2025-03-02 16:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-01 22:01 Alyssa Rosenzweig
2025-03-02 16:02 ` Sven Peter [this message]
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