Re: [PATCHv7 0/7] System Cache support for GPU and required SMMU support

On 2020-10-30 14:53, Sai Prakash Ranjan wrote: Some hardware variants contain a system cache or the last level cache(llc). This cache is typically a large block which is shared by multiple clients on the SOC. GPU uses the system cache to cache both the GPU data buffers(like textures) as well the

Re: [PATCH] iommu/vt-d: avoid unnecessory panic if iommu init fail in tboot

Hi Zhenzhong, On 11/9/20 10:27 AM, Zhenzhong Duan wrote: +intel iommu maintainers, Can anyone help review this patch? Thanks Zhenzhong On Wed, Nov 4, 2020 at 4:15 PM Zhenzhong Duan wrote: "intel_iommu=off" command line is used to disable iommu and iommu is force enabled in a tboot system.

Re: [PATCH] iommu/vt-d: avoid unnecessory panic if iommu init fail in tboot

+intel iommu maintainers, Can anyone help review this patch? Thanks Zhenzhong On Wed, Nov 4, 2020 at 4:15 PM Zhenzhong Duan wrote: > > "intel_iommu=off" command line is used to disable iommu and iommu is force > enabled in a tboot system. Meanwhile "intel_iommu=tboot_noforce,off" > could be