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Date: Sat, 29 Oct 2011 21:36:13 +0200 From: Geert Uytterhoeven <geert@...ux-m68k.org> To: Joerg Roedel <joerg.roedel@....com> Cc: Jesse Barnes <jbarnes@...tuousgeek.org>, linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com> Subject: Re: [PATCH 3/4] PCI: Add implementation for PRI capability On Tue, Sep 27, 2011 at 15:57, Joerg Roedel <joerg.roedel@....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@....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@...ux-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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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