From: Han Gao <gaohan@iscas.ac.cn>
To: "Bjorn Helgaas" <bhelgaas@google.com>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kwilczynski@kernel.org>,
"Manivannan Sadhasivam" <mani@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Chen Wang" <unicorn_wang@outlook.com>,
"Inochi Amaoto" <inochiama@gmail.com>,
"Paul Walmsley" <pjw@kernel.org>,
"Palmer Dabbelt" <palmer@dabbelt.com>,
"Albert Ou" <aou@eecs.berkeley.edu>,
"Alexandre Ghiti" <alex@ghiti.fr>, "Han Gao" <gaohan@iscas.ac.cn>,
"Zixian Zeng" <sycamoremoon376@gmail.com>
Cc: linux-pci@vger.kernel.org, devicetree@vger.kernel.org,
sophgo@lists.linux.dev, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org, Han Gao <rabenda.cn@gmail.com>
Subject: [PATCH 0/2] riscv: sophgo: sg2042: Enable PCIe DMA coherence
Date: Wed, 1 Apr 2026 01:12:46 +0800 [thread overview]
Message-ID: <20260331171248.973014-1-gaohan@iscas.ac.cn> (raw)
The SG2042 hardware design supports cache-coherent PCIe.
With recent firmware updates [1], it allows to use DMA coherent.
[1] https://github.com/sophgo/edk2-non-osi/commit/017a5aea26a066fd2bf501b7893937183165af36
Han Gao (2):
dt-bindings: pci: sophgo: Add dma-coherent property for SG2042
riscv: dts: sophgo: Add dma-coherent to SG2042 PCIe controllers
.../devicetree/bindings/pci/sophgo,sg2042-pcie-host.yaml | 3 +++
arch/riscv/boot/dts/sophgo/sg2042.dtsi | 4 ++++
2 files changed, 7 insertions(+)
--
2.47.3
next reply other threads:[~2026-03-31 17:13 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-31 17:12 Han Gao [this message]
2026-03-31 17:12 ` [PATCH 1/2] dt-bindings: pci: sophgo: Add dma-coherent property for SG2042 Han Gao
2026-04-08 14:41 ` Rob Herring (Arm)
2026-03-31 17:12 ` [PATCH 2/2] riscv: dts: sophgo: Add dma-coherent to SG2042 PCIe controllers Han Gao
2026-03-31 17:57 ` Conor Dooley
2026-04-02 8:43 ` Chen Wang
2026-04-02 10:30 ` Han Gao
2026-05-01 16:49 ` (subset) [PATCH 0/2] riscv: sophgo: sg2042: Enable PCIe DMA coherence Manivannan Sadhasivam
2026-06-01 2:57 ` Inochi Amaoto
2026-06-02 9:21 ` Inochi Amaoto
2026-06-02 22:15 ` Inochi Amaoto
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