From: "Danilo Krummrich" <dakr@kernel.org>
To: "John Hubbard" <jhubbard@nvidia.com>
Cc: "Alistair Popple" <apopple@nvidia.com>,
"Timur Tabi" <ttabi@nvidia.com>,
"nova-gpu@lists.linux.dev" <nova-gpu@lists.linux.dev>,
"gary@garyguo.net" <gary@garyguo.net>,
"Eliot Courtney" <ecourtney@nvidia.com>,
"lossin@kernel.org" <lossin@kernel.org>,
"airlied@gmail.com" <airlied@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"rust-for-linux@vger.kernel.org" <rust-for-linux@vger.kernel.org>,
"aliceryhl@google.com" <aliceryhl@google.com>,
"Alexandre Courbot" <acourbot@nvidia.com>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>
Subject: Re: [PATCH 3/4] drm: nova: Add GETPARAM parameter to read the GPU chipset
Date: Thu, 09 Jul 2026 12:18:19 +0200 [thread overview]
Message-ID: <DJTYPAM8RL0F.1LZHKFSTIURPF@kernel.org> (raw)
In-Reply-To: <6fe208cc-f095-4d92-b34c-ad227d2710a4@nvidia.com>
On Thu Jul 9, 2026 at 2:49 AM CEST, John Hubbard wrote:
> Unless all, or nearly all of the ioctl values would be the same,
> there is absolutely no value in trying to make a small subset
> match.
As mentioned in [1], it would also require layout compatibility between
structures and at least to some extend the same implementation semantics.
So, no, we're not going to do this.
It would probably be good to stick to some common tooling that exercises the raw
uAPI though while we are still building things up and can't yet run "real" test
suites.
One option would be IGT, but I also created [2] back when I merged the initial
nova-drm skeleton driver.
[1] https://lore.kernel.org/nova-gpu/DJRP5QO5JKVT.Y7LCZARVCWJ8@kernel.org/
[2] https://gitlab.freedesktop.org/dakr/drm-test
next prev parent reply other threads:[~2026-07-09 10:18 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-06 5:34 [PATCH 0/4] gpu: nova: Export parameters from nova-core to nova-drm Alistair Popple
2026-07-06 5:34 ` [PATCH 1/4] gpu: nova-core: Add public driver API to nova-core Alistair Popple
2026-07-06 17:56 ` Danilo Krummrich
2026-07-06 5:34 ` [PATCH 2/4] gpu: nova: Add DRM registration data Alistair Popple
2026-07-06 18:01 ` Danilo Krummrich
2026-07-09 0:40 ` Alistair Popple
2026-07-06 5:34 ` [PATCH 3/4] drm: nova: Add GETPARAM parameter to read the GPU chipset Alistair Popple
2026-07-06 17:35 ` Timur Tabi
2026-07-06 18:24 ` Danilo Krummrich
2026-07-09 0:16 ` Alistair Popple
2026-07-09 0:49 ` John Hubbard
2026-07-09 4:31 ` Dave Airlie
2026-07-09 10:18 ` Danilo Krummrich [this message]
2026-07-06 18:16 ` Danilo Krummrich
2026-07-09 1:31 ` Alistair Popple
2026-07-06 5:34 ` [PATCH 4/4] drm: nova: Add a GETPARAM parameter to read usable VRAM size Alistair Popple
2026-07-06 18:26 ` Danilo Krummrich
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