From: "Danilo Krummrich" <dakr@kernel.org>
To: "Ke Sun via B4 Relay" <devnull+sunke.kylinos.cn@kernel.org>
Cc: sunke@kylinos.cn, "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>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Trevor Gross" <tmgross@umich.edu>,
"Daniel Almeida" <daniel.almeida@collabora.com>,
"Tamir Duberstein" <tamird@kernel.org>,
"Alexandre Courbot" <acourbot@nvidia.com>,
"Onur Özkan" <work@onurozkan.dev>,
"Lorenzo Stoakes" <ljs@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
"Lyude Paul" <lyude@redhat.com>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
"Sami Tolvanen" <samitolvanen@google.com>,
rust-for-linux@vger.kernel.org, linux-mm@kvack.org,
dri-devel@lists.freedesktop.org, driver-core@lists.linux.dev,
"Alvin Sun" <alvin.sun@linux.dev>
Subject: Re: [PATCH v3 09/11] rust: device: expose dma_coherent()
Date: Tue, 29 Sep 2026 20:40:25 +0200 [thread overview]
Message-ID: <DLS0QEPJKOPZ.1MX607W2OQ0RI@kernel.org> (raw)
In-Reply-To: <20260929-tyr-ioctls-v3-9-26955fb111d5@kylinos.cn>
On Tue Sep 29, 2026 at 4:15 AM CEST, Ke Sun via B4 Relay wrote:
> Add a thin accessor on Device<Bound> that wraps device_get_dma_attr()
> and returns true only for DEV_DMA_COHERENT. The other attribute values
> (unset, non-coherent) are treated as non-coherent.
Why not return a transparent wrapper around enum dev_dma_attr so we have all
cases covered?
next prev parent reply other threads:[~2026-09-29 18:40 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-29 2:15 [PATCH v3 00/11] drm/tyr: add VM and BO ioctl support Ke Sun via B4 Relay
2026-09-29 2:15 ` [PATCH v3 01/11] rust: sizes: add SZ_4G constant Ke Sun via B4 Relay
2026-09-29 2:15 ` [PATCH v3 02/11] rust: mm: add `task_size` helper Ke Sun via B4 Relay
2026-09-29 2:15 ` [PATCH v3 03/11] rust: sync: arc: relax `ForeignOwnable` for `Arc<T>` Ke Sun via B4 Relay
2026-09-29 2:15 ` [PATCH v3 04/11] drm/tyr: add per-file VM pool Ke Sun via B4 Relay
2026-09-29 2:15 ` [PATCH v3 05/11] drm/tyr: add user and MCU VM specifications Ke Sun via B4 Relay
2026-09-29 2:15 ` [PATCH v3 06/11] drm/tyr: add BO creation and lookup helpers Ke Sun via B4 Relay
2026-09-29 2:15 ` [PATCH v3 07/11] drm/tyr: add VM-related ioctls Ke Sun via B4 Relay
2026-09-29 2:15 ` [PATCH v3 08/11] drm/tyr: add BO-related ioctls Ke Sun via B4 Relay
2026-09-29 2:15 ` [PATCH v3 09/11] rust: device: expose dma_coherent() Ke Sun via B4 Relay
2026-09-29 18:40 ` Danilo Krummrich [this message]
2026-09-29 2:16 ` [PATCH v3 10/11] drm/tyr: gem: flush write-combine BOs from probe-time coherence Ke Sun via B4 Relay
2026-09-29 2:16 ` [PATCH v3 11/11] drm/tyr: gem: map cached BOs for DRM_PANTHOR_BO_WB_MMAP Ke Sun via B4 Relay
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