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    SubjectRe: [PATCH 3/4] PCI: Add implementation for PRI capability
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    On Tue, Sep 27, 2011 at 15:57, Joerg Roedel <joerg.roedel@amd.com> wrote:
    > Implement the necessary functions to handle PRI capabilities
    > on PCIe devices. With PRI devices behind an IOMMU can signal
    > page fault conditions to software and recover from such
    > faults.
    >
    > Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
    > ---
    >  drivers/pci/Kconfig      |    9 +++
    >  drivers/pci/ats.c        |  167 ++++++++++++++++++++++++++++++++++++++++++++++
    >  include/linux/pci-ats.h  |   42 ++++++++++++
    >  include/linux/pci_regs.h |   12 +++
    >  4 files changed, 230 insertions(+), 0 deletions(-)
    >
    > diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
    > index 1d8ce83..fb1e9707 100644
    > --- a/drivers/pci/Kconfig
    > +++ b/drivers/pci/Kconfig
    > @@ -85,6 +85,15 @@ config PCI_IOV
    >
    >          If unsure, say N.
    >
    > +config PCI_PRI
    > +       bool "PCI PRI support"

    Shouldn't this depend on PCI?

    It doesn't seem to hurt on PCI-less platforms, but I prefer not seeing
    PCI-related
    questions when CONFIG_PCI is not set.

    > +       select PCI_ATS
    > +       help
    > +         PRI is the PCI Page Request Interface. It allows PCI devices that are
    > +         behind an IOMMU to recover from page faults.
    > +
    > +         If unsure, say N.
    > +

    Gr{oetje,eeting}s,

                            Geert

    --
    Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

    In personal conversations with technical people, I call myself a hacker. But
    when I'm talking to journalists I just say "programmer" or something like that.
                                    -- Linus Torvalds
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