Messages in this thread | | | Date | Tue, 18 Feb 2014 14:33:53 +0800 | From | Yijing Wang <> | Subject | Re: [PATCH] arm64: Add architecture support for PCI |
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> +#include <linux/init.h> > +#include <linux/io.h> > +#include <linux/kernel.h> > +#include <linux/mm.h> > +#include <linux/of_pci.h> > +#include <linux/of_platform.h> > +#include <linux/slab.h> > + > +#include <asm/pci-bridge.h> > + > + > +/* > + * Return the domain number for this bus > + */ > +int pci_domain_nr(struct pci_bus *bus) > +{ > + struct pci_host_bridge *bridge = to_pci_host_bridge(bus->bridge);
Here bus is specific to root bus ? or, what about use find_pci_host_bridge() to get the pci_host_bridge instead.
> + > + if (bridge) > + return bridge->domain_nr; > + > + return 0; > +} > + > +int pci_proc_domain(struct pci_bus *bus) > +{ > + return pci_domain_nr(bus); > +} > + > +/* > + * Called after each bus is probed, but before its children are examined > + */ > +void pcibios_fixup_bus(struct pci_bus *bus) > +{ > + struct pci_dev *dev; > + struct resource *res; > + int i; > + > + if (bus->self != NULL) {
What about use !pci_is_root_bus() ?
> + pci_read_bridge_bases(bus); > + > + pci_bus_for_each_resource(bus, res, i) { > + if (!res || !res->flags || res->parent) > + continue; > + > + /* > + * If we are going to reassign everything, we can > + * shrink the P2P resource to have zero size to > + * save space > + */ > + if (pci_has_flag(PCI_REASSIGN_ALL_RSRC)) { > + res->flags |= IORESOURCE_UNSET; > + res->start = 0; > + res->end = -1; > + continue; > + } > + } > + } > +
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