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Date: Wed, 25 Mar 2026 12:31:41 +0100
Message-Id: <DHBTVQ5C8GWH.22YI7TVB7RWN2@kernel.org>
Subject: Re: [PATCH v8 05/31] gpu: nova-core: set DMA mask width based on
 GPU architecture
Cc: "Alexandre Courbot" <acourbot@nvidia.com>, "Joel Fernandes"
 <joelagnelf@nvidia.com>, "Timur Tabi" <ttabi@nvidia.com>, "Alistair Popple"
 <apopple@nvidia.com>, "Eliot Courtney" <ecourtney@nvidia.com>, "Shashank
 Sharma" <shashanks@nvidia.com>, "Zhi Wang" <zhiw@nvidia.com>, "David
 Airlie" <airlied@gmail.com>, "Simona Vetter" <simona@ffwll.ch>, "Bjorn
 Helgaas" <bhelgaas@google.com>, "Miguel Ojeda" <ojeda@kernel.org>, "Alex
 Gaynor" <alex.gaynor@gmail.com>, "Boqun Feng" <boqun.feng@gmail.com>, "Gary
 Guo" <gary@garyguo.net>, =?utf-8?q?Bj=C3=B6rn_Roy_Baron?=
 <bjorn3_gh@protonmail.com>, "Benno Lossin" <lossin@kernel.org>, "Andreas
 Hindborg" <a.hindborg@kernel.org>, "Alice Ryhl" <aliceryhl@google.com>,
 "Trevor Gross" <tmgross@umich.edu>, <rust-for-linux@vger.kernel.org>,
 "LKML" <linux-kernel@vger.kernel.org>
To: "John Hubbard" <jhubbard@nvidia.com>
From: "Danilo Krummrich" <dakr@kernel.org>
References: <20260325035242.368661-1-jhubbard@nvidia.com>
 <20260325035242.368661-6-jhubbard@nvidia.com>
In-Reply-To: <20260325035242.368661-6-jhubbard@nvidia.com>

On Wed Mar 25, 2026 at 4:52 AM CET, John Hubbard wrote:
> Move Spec creation into probe() so the architecture is known before
> setting the DMA mask, and pass Spec into Gpu::new().

Hm...this is not what we discussed in [1]. You implemented the change in v5=
 and
v6 and v7 reverted it. Why?

[1] https://lore.kernel.org/all/DGC28K8J39E2.1X173NHT9ZJDI@kernel.org/