Messages in this thread | | | Subject | Re: [RFC 3/4] arm64: Do not call enable PCI resources when specify PCI_PROBE_ONLY | From | Benjamin Herrenschmidt <> | Date | Wed, 24 Jun 2015 08:32:14 +1000 |
| |
On Sun, 2014-09-28 at 15:53 -0500, suravee.suthikulpanit@amd.com wrote: > From: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> > > When specify PCI_PROBE_ONLY, the resource parent does not get assigned. > Therefore, pci_enable_resources() return error saying that > "BAR x not claimed". > > Note: This same logic is also used in the arch/arm/kernel/bios32.c
This looks broken. Why don't you assign the resource parent ?
> Cc: Liviu Dudau <Liviu.Dudau@arm.com> > Cc: Bjorn Helgaas <bhelgaas@google.com> > Cc: Will Deacon <will.deacon@arm.com> > Cc: Catalin Marinas <catalin.marinas@arm.com> > Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> > --- > arch/arm64/kernel/pci.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c > index ce5836c..7fd4d2b 100644 > --- a/arch/arm64/kernel/pci.c > +++ b/arch/arm64/kernel/pci.c > @@ -68,3 +68,11 @@ void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent) > bus->domain_nr = domain; > } > #endif > + > +int pcibios_enable_device(struct pci_dev *dev, int mask) > +{ > + if (pci_has_flag(PCI_PROBE_ONLY)) > + return 0; > + > + return pci_enable_resources(dev, mask); > +}
| |