From: Andreas Hindborg <a.hindborg@kernel.org>
To: "Laura Nao" <laura.nao@collabora.com>,
"Danilo Krummrich" <dakr@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Daniel Almeida" <daniel.almeida@collabora.com>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>,
"Miguel Ojeda" <ojeda@kernel.org>,
"Boqun Feng" <boqun@kernel.org>, "Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <lossin@kernel.org>,
"Trevor Gross" <tmgross@umich.edu>,
"Tamir Duberstein" <tamird@kernel.org>,
"Alexandre Courbot" <acourbot@nvidia.com>,
"Onur Özkan" <work@onurozkan.dev>,
"FUJITA Tomonori" <fujita.tomonori@gmail.com>,
"Frederic Weisbecker" <frederic@kernel.org>,
"Lyude Paul" <lyude@redhat.com>,
"Thomas Gleixner" <tglx@kernel.org>,
"Anna-Maria Behnsen" <anna-maria@linutronix.de>,
"John Stultz" <jstultz@google.com>,
"Stephen Boyd" <sboyd@kernel.org>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
driver-core@lists.linux.dev, rust-for-linux@vger.kernel.org,
kernel@collabora.com, Laura Nao <laura.nao@collabora.com>,
Deborah Brouwer <deborah.brouwer@collabora.com>
Subject: Re: [PATCH 7/9] rust: time: add arch_timer_get_rate wrapper
Date: Tue, 22 Sep 2026 14:57:39 +0200 [thread overview]
Message-ID: <87zex930l8.fsf@t14s.mail-host-address-is-not-set> (raw)
In-Reply-To: <20260915-tyr-interfaces-v1-7-5d28f1f75aca@collabora.com>
"Laura Nao" <laura.nao@collabora.com> writes:
> From: Deborah Brouwer <deborah.brouwer@collabora.com>
>
> Provide a safe Rust wrapper for arch_timer_get_rate().
>
> The Rust binding calls a C helper that returns 0 when the ARM
> architectural timer is not available or not yet initialized. Map this to
> Option<u32> to make the absence of a valid rate explicit to Rust callers.
>
> This allows Rust drivers to query the system timer frequency and
> select appropriate time sources when programming hardware timeouts.
>
> Signed-off-by: Deborah Brouwer <deborah.brouwer@collabora.com>
> Signed-off-by: Laura Nao <laura.nao@collabora.com>
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Best regards,
Andreas Hindborg
next prev parent reply other threads:[~2026-09-22 12:57 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-15 10:57 [PATCH 0/9] drm/tyr: add CSF firmware interface support Laura Nao
2026-09-15 10:57 ` [PATCH 1/9] drm/tyr: validate presence of CSF shared section Laura Nao
2026-09-23 13:59 ` Daniel Almeida
2026-09-15 10:57 ` [PATCH 2/9] rust: io: drop the CONFIG_64BIT restriction on system memory u64 access Laura Nao
2026-09-15 11:18 ` Gary Guo
2026-09-21 10:06 ` Laura Nao
2026-09-15 10:57 ` [PATCH 3/9] drm/tyr: add MappedBo, a kernel BO with an always-valid CPU mapping Laura Nao
2026-09-23 20:43 ` Daniel Almeida
2026-09-15 10:57 ` [PATCH 4/9] drm/tyr: add McuVa and claim-checked MappedBo views Laura Nao
2026-09-23 20:42 ` Daniel Almeida
2026-09-15 10:57 ` [PATCH 5/9] drm/tyr: drop unused KernelBo::bo() function Laura Nao
2026-09-23 20:45 ` Daniel Almeida
2026-09-15 10:57 ` [PATCH 6/9] drm/tyr: add CSF firmware interface support Laura Nao
2026-09-26 0:24 ` Daniel Almeida
2026-09-15 10:57 ` [PATCH 7/9] rust: time: add arch_timer_get_rate wrapper Laura Nao
2026-09-22 12:57 ` Andreas Hindborg [this message]
2026-09-22 14:23 ` FUJITA Tomonori
2026-09-22 19:56 ` Gary Guo
2026-09-15 10:57 ` [PATCH 8/9] drm/tyr: program CSF global interface Laura Nao
2026-09-15 10:57 ` [PATCH 9/9] drm/tyr: wait for global interface readiness Laura Nao
2026-09-23 8:50 ` Alice Ryhl
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