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[84.248.220.251]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-549ba865024sm1387506e87.123.2025.03.17.11.54.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Mar 2025 11:54:22 -0700 (PDT) From: Abdiel Janulgue To: rust-for-linux@vger.kernel.org, daniel.almeida@collabora.com, dakr@kernel.org, robin.murphy@arm.com, aliceryhl@google.com Cc: Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , Benno Lossin , Andreas Hindborg , Trevor Gross , Valentin Obst , linux-kernel@vger.kernel.org (open list), Christoph Hellwig , Marek Szyprowski , airlied@redhat.com, iommu@lists.linux.dev (open list:DMA MAPPING HELPERS), Abdiel Janulgue Subject: [PATCH v15 10/11] rust: samples: dma: set DMA mask Date: Mon, 17 Mar 2025 20:52:17 +0200 Message-ID: <20250317185345.2608976-11-abdiel.janulgue@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250317185345.2608976-1-abdiel.janulgue@gmail.com> References: <20250317185345.2608976-1-abdiel.janulgue@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Danilo Krummrich Set a DMA mask for the `pci::Device` in the Rust DMA sample driver. Signed-off-by: Danilo Krummrich Signed-off-by: Abdiel Janulgue --- samples/rust/rust_dma.rs | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/samples/rust/rust_dma.rs b/samples/rust/rust_dma.rs index 4c7ebf66647a..39b6050aa3b6 100644 --- a/samples/rust/rust_dma.rs +++ b/samples/rust/rust_dma.rs @@ -4,7 +4,12 @@ //! //! To make this driver probe, QEMU must be run with `-device pci-testdev`. =20 -use kernel::{bindings, dma::CoherentAllocation, pci, prelude::*}; +use kernel::{ + bindings, + dma::{CoherentAllocation, Device}, + pci, + prelude::*, +}; =20 struct DmaSampleDriver { pdev: pci::Device, @@ -51,6 +56,8 @@ impl pci::Driver for DmaSampleDriver { fn probe(pdev: &mut pci::Device, _info: &Self::IdInfo) -> Result>> { dev_info!(pdev.as_ref(), "Probe DMA test driver.\n"); =20 + pdev.dma_set_mask_and_coherent(kernel::dma::dma_bit_mask(64))?; + let ca: CoherentAllocation =3D CoherentAllocation::alloc_coherent(pdev, TEST_VALUES.len(), GF= P_KERNEL)?; =20 --=20 2.43.0