On 2/27/23 8:21 PM, Ganapatrao Kulkarni wrote: > As discussed in [1], adding a helper function to configure the STU of an > ATS capability. Function pci_ats_stu_configure() can be called to program > the STU while enumerating the PF, to support scenarios like PF is not > enabled with ATS, whereas VFs can enable it. > > In SMMU-V3 driver, calling pci_ats_stu_configure() to confgiure the STU > while enumerating a PF in passthrough mode. It looks like you are fixing this issue only for your platform. Is there any way to generically program PF STU? May be from pci_ats_init()? -- Sathyanarayanan Kuppuswamy Linux Kernel Developer
