Hi, Greg On 2019/12/16 上午11:08, Zhangfei Gao wrote:
Uacce (Unified/User-space-access-intended Accelerator Framework) targets to provide Shared Virtual Addressing (SVA) between accelerators and processes. So accelerator can access any data structure of the main cpu. This differs from the data sharing between cpu and io device, which share data content rather than address. Because of unified address, hardware and user space of process can share the same virtual address in the communication. Uacce is intended to be used with Jean Philippe Brucker's SVA patchset[1], which enables IO side page fault and PASID support. We have keep verifying with Jean's sva patchset [2] We also keep verifying with Eric's SMMUv3 Nested Stage patches [3] This series and related zip & qm driver https://github.com/Linaro/linux-kernel-warpdrive/tree/v5.5-rc1-uacce-v10 The library and user application: https://github.com/Linaro/warpdrive/tree/wdprd-upstream-v10 References: [1] http://jpbrucker.net/sva/ [2] http://jpbrucker.net/git/linux/log/?h=sva/zip-devel [3] https://github.com/eauger/linux/tree/v5.3.0-rc0-2stage-v9 Change History: v10: Modify the include header to fix kbuild test erorr in other arch. Kenneth Lee (2): uacce: Add documents for uacce uacce: add uacce driver Zhangfei Gao (2): crypto: hisilicon - Remove module_param uacce_mode crypto: hisilicon - register zip engine to uacce
Would you mind take a look at the patch set? The patches are also used for verifying the sva feature. https://lore.kernel.org/linux-iommu/20191219163033.2608177-1-jean-philippe@xxxxxxxxxx/ Thanks
