From: "Danilo Krummrich" <dakr@kernel.org>
To: "Miguel Ojeda" <miguel.ojeda.sandonis@gmail.com>
Cc: "John Hubbard" <jhubbard@nvidia.com>,
"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>,
"Björn 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>
Subject: Re: [PATCH 1/2] rust: sizes: add u64 variants of SZ_* constants
Date: Tue, 10 Mar 2026 21:47:53 +0100 [thread overview]
Message-ID: <DGZEBEPLULOZ.2GT5QV8I8VBXJ@kernel.org> (raw)
In-Reply-To: <CANiq72k45b+famoLjUyk+UFnZbEONLNSgiwDDQCgUoV6U2m1uQ@mail.gmail.com>
On Tue Mar 10, 2026 at 9:20 PM CET, Miguel Ojeda wrote:
> Whether we go for `u64::` or not
The more I think about it, the more I tend towards not going for u64::, at least
not directly.
The point really is that we differentiate between GPU (or more generally device)
address space size and CPU address space size.
So, I think what we really want is an abstraction of a usize type for GPUs (or
devices in general).
A corresponding implementation of SZ_* would just follow those.
In any case, I think we should implement those with a macro.
next prev parent reply other threads:[~2026-03-10 20:47 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-10 2:31 [PATCH 0/2] rust, nova-core: use u64 variants of SZ_* constants John Hubbard
2026-03-10 2:31 ` [PATCH 1/2] rust: sizes: add " John Hubbard
2026-03-10 13:51 ` Miguel Ojeda
2026-03-10 16:42 ` Daniel Almeida
2026-03-10 16:53 ` Danilo Krummrich
2026-03-10 20:20 ` Miguel Ojeda
2026-03-10 20:47 ` Danilo Krummrich [this message]
2026-03-10 20:55 ` Danilo Krummrich
2026-03-10 22:08 ` Miguel Ojeda
2026-03-10 22:13 ` John Hubbard
2026-03-10 22:19 ` John Hubbard
2026-03-11 8:01 ` Alexandre Courbot
2026-03-12 0:21 ` John Hubbard
2026-03-10 16:59 ` Danilo Krummrich
2026-03-10 2:31 ` [PATCH 2/2] gpu: nova-core: use SZ_*_U64 constants from kernel::sizes John Hubbard
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