Re: [PATCH v2 1/2] PCI/ATS: Add pci_ats_page_aligned() interface

2019-02-13 Thread Bjorn Helgaas
On Mon, Feb 11, 2019 at 01:44:34PM -0800, sathyanarayanan.kuppusw...@linux.intel.com wrote: > From: Kuppuswamy Sathyanarayanan > > Return the Page Aligned Request bit in the ATS Capability Register. > > As per PCIe spec r4.0, sec 10.5.1.2, If Page Aligned Request bit is > set, then it

[PATCH v2 1/2] PCI/ATS: Add pci_ats_page_aligned() interface

2019-02-11 Thread sathyanarayanan . kuppuswamy
From: Kuppuswamy Sathyanarayanan Return the Page Aligned Request bit in the ATS Capability Register. As per PCIe spec r4.0, sec 10.5.1.2, If Page Aligned Request bit is set, then it indicates the Untranslated Addresses generated by the device are alwayis always aligned to a 4096 byte boundary.