linux-kernel - Re: [PATCH v4 09/20] gpu: nova-core: increase BAR0 size to 16MB

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Message-ID: <01a02d519b7a7b93fbc94a043df2a7dadea6e16a.camel@redhat.com>
Date: Fri, 30 May 2025 17:46:07 -0400
From: Lyude Paul <lyude@...hat.com>
To: Alexandre Courbot <acourbot@...dia.com>, Miguel Ojeda
 <ojeda@...nel.org>,  Alex Gaynor <alex.gaynor@...il.com>, Boqun Feng
 <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
 Björn Roy Baron	 <bjorn3_gh@...tonmail.com>, Benno
 Lossin <benno.lossin@...ton.me>, Andreas Hindborg <a.hindborg@...nel.org>,
 Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>, 
 Danilo Krummrich	 <dakr@...nel.org>, David Airlie <airlied@...il.com>,
 Simona Vetter	 <simona@...ll.ch>, Maarten Lankhorst
 <maarten.lankhorst@...ux.intel.com>,  Maxime Ripard <mripard@...nel.org>,
 Thomas Zimmermann <tzimmermann@...e.de>
Cc: John Hubbard <jhubbard@...dia.com>, Ben Skeggs <bskeggs@...dia.com>, 
 Joel Fernandes <joelagnelf@...dia.com>, Timur Tabi <ttabi@...dia.com>,
 Alistair Popple <apopple@...dia.com>, 	linux-kernel@...r.kernel.org,
 rust-for-linux@...r.kernel.org, 	nouveau@...ts.freedesktop.org,
 dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v4 09/20] gpu: nova-core: increase BAR0 size to 16MB

On Wed, 2025-05-21 at 15:45 +0900, Alexandre Courbot wrote:
>  
> -const BAR0_SIZE: usize = 8;
> +const BAR0_SIZE: usize = 0x1000000;
>  pub(crate) type Bar0 = pci::Bar<BAR0_SIZE>;
>  

Hm, considering that you just added additional SZ_* constants wouldn't we want
to use one of those here instead of 0x1000000?

>  kernel::pci_device_table!(
> 

-- 
Cheers,
 Lyude Paul (she/her)
 Software Engineer at Red Hat

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