linux-kernel - Re: [PATCH v4 11/20] gpu: nova-core: wait for GFW

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Message-ID: <aDsUGGrjbJ_8KyrP@pollux>
Date: Sat, 31 May 2025 16:37:12 +0200
From: Danilo Krummrich <dakr@...nel.org>
To: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc: Lyude Paul <lyude@...hat.com>, 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>,
	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>,
	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 11/20] gpu: nova-core: wait for GFW_BOOT completion

On Sat, May 31, 2025 at 04:09:29PM +0200, Miguel Ojeda wrote:
> On Fri, May 30, 2025 at 11:51 PM Lyude Paul <lyude@...hat.com> wrote:
> > TBH - we should really add some safe bindings for sleeps instead of calling
> > this unsafely, I'd be happy to review them if you do
> 
> In case it helps, there is:
> 
>     https://lore.kernel.org/rust-for-linux/20250423192857.199712-6-fujita.tomonori@gmail.com/
> 
> I think that is the last one -- we have been going back and forth a
> bit on it (e.g. we had `coarse_sleep()` in the old `rust` pre-merge
> branch), but, yeah, let's try to get the abstraction(s) in.

We've already discussed this on previous versions of this patch series, where I
also pointed to the patch series linked above.

I agreed to take this code without waiting for those abstractions, but with a
TODO to fix things up once they land.

- Danilo