On Tue, Feb 18, 2014 at 02:33:53PM +0800, Yijing Wang wrote:
+#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);
Hi Yijing,
Here bus is specific to root bus ? or, what about use find_pci_host_bridge() to get the pci_host_bridge instead.
Yes, the call should be to find_pci_host_bridge(). I sort of implied that the bus is always the root bus, which is obviously not correct. Thanks for pointing it out.
- 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() ?
Again, good call, will change.
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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