From: Bjorn Helgaas <helgaas@kernel.org>
To: Danilo Krummrich <dakr@kernel.org>
Cc: bhelgaas@google.com, kwilczynski@kernel.org,
gregkh@linuxfoundation.org, rafael@kernel.org,
abdiel.janulgue@gmail.com, ojeda@kernel.org,
alex.gaynor@gmail.com, boqun.feng@gmail.com, gary@garyguo.net,
bjorn3_gh@protonmail.com, benno.lossin@proton.me,
a.hindborg@kernel.org, aliceryhl@google.com, tmgross@umich.edu,
daniel.almeida@collabora.com, robin.murphy@arm.com,
linux-pci@vger.kernel.org, rust-for-linux@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 7/9] rust: pci: move iomap_region() to impl Device<Bound>
Date: Tue, 15 Apr 2025 15:43:31 -0500 [thread overview]
Message-ID: <20250415204331.GA34889@bhelgaas> (raw)
In-Reply-To: <20250413173758.12068-8-dakr@kernel.org>
On Sun, Apr 13, 2025 at 07:37:02PM +0200, Danilo Krummrich wrote:
> Require the Bound device context to be able to call iomap_region() and
> iomap_region_sized(). Creating I/O mapping requires the device to be
> bound.
>
> Signed-off-by: Danilo Krummrich <dakr@kernel.org>
> ---
> rust/kernel/pci.rs | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/rust/kernel/pci.rs b/rust/kernel/pci.rs
> index 1234b0c4a403..3664d35b8e79 100644
> --- a/rust/kernel/pci.rs
> +++ b/rust/kernel/pci.rs
> @@ -390,7 +390,9 @@ pub fn resource_len(&self, bar: u32) -> Result<bindings::resource_size_t> {
> // - by its type invariant `self.as_raw` is always a valid pointer to a `struct pci_dev`.
> Ok(unsafe { bindings::pci_resource_len(self.as_raw(), bar.try_into()?) })
> }
> +}
>
> +impl Device<device::Bound> {
> /// Mapps an entire PCI-BAR after performing a region-request on it. I/O operation bound checks
> /// can be performed on compile time for offsets (plus the requested type size) < SIZE.
You didn't add these typos here, but
s/Mapps/Maps/
s/on compile time/at compile time/
> pub fn iomap_region_sized<const SIZE: usize>(
> --
> 2.49.0
>
next prev parent reply other threads:[~2025-04-15 20:43 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-13 17:36 [PATCH v2 0/9] Implement "Bound" device context Danilo Krummrich
2025-04-13 17:36 ` [PATCH v2 1/9] rust: device: implement impl_device_context_deref! Danilo Krummrich
2025-04-13 19:38 ` Christian Schrefl
2025-04-14 10:41 ` Benno Lossin
2025-04-13 17:36 ` [PATCH v2 2/9] rust: device: implement impl_device_context_into_aref! Danilo Krummrich
2025-04-14 10:26 ` Benno Lossin
2025-04-13 17:36 ` [PATCH v2 3/9] rust: device: implement device context for Device Danilo Krummrich
2025-04-14 10:31 ` Benno Lossin
2025-04-15 20:47 ` Bjorn Helgaas
2025-04-13 17:36 ` [PATCH v2 4/9] rust: platform: preserve device context in AsRef Danilo Krummrich
2025-04-14 10:32 ` Benno Lossin
2025-04-13 17:37 ` [PATCH v2 5/9] rust: pci: " Danilo Krummrich
2025-04-14 10:33 ` Benno Lossin
2025-04-13 17:37 ` [PATCH v2 6/9] rust: device: implement Bound device context Danilo Krummrich
2025-04-14 10:44 ` Benno Lossin
2025-04-14 11:13 ` Danilo Krummrich
2025-04-14 12:15 ` Benno Lossin
2025-04-14 10:49 ` Benno Lossin
2025-04-14 10:56 ` Danilo Krummrich
2025-04-14 11:10 ` Benno Lossin
2025-04-15 20:44 ` Bjorn Helgaas
2025-04-13 17:37 ` [PATCH v2 7/9] rust: pci: move iomap_region() to impl Device<Bound> Danilo Krummrich
2025-04-14 10:44 ` Benno Lossin
2025-04-15 20:43 ` Bjorn Helgaas [this message]
2025-04-13 17:37 ` [PATCH v2 8/9] rust: devres: require a bound device Danilo Krummrich
2025-04-13 17:37 ` [PATCH v2 9/9] rust: dma: " Danilo Krummrich
2025-04-17 15:14 ` [PATCH v2 0/9] Implement "Bound" device context Danilo Krummrich
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