[PATCH 0/2] riscv: sophgo: sg2042: Enable PCIe DMA coherence
Han Gao <[email protected]> Wed, 1 Apr 2026 01:12:46 +0800
| Newsgroups | dev.linux.lists.sophgo,org.infradead.lists.linux-riscv,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.linux-pci |
|---|---|
| Message-ID | <[email protected]> |
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