will use them insert/update busn res in pci_bus Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx> --- drivers/pci/probe.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ include/linux/pci.h | 3 +++ 2 files changed, 50 insertions(+), 0 deletions(-) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index dc904bd..1859ea8 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1626,6 +1626,53 @@ err_out: return NULL; } +void pci_bus_insert_busn_res(struct pci_bus *b, int bus, int bus_max) +{ + struct resource *res = &b->busn_res; + struct resource *parent_res; + int ret; + + res->start = bus; + res->end = bus_max; + res->flags = IORESOURCE_BUS; + + /* no parent for root bus' busn_res */ + if (!pci_is_root_bus(b)) { + parent_res = &b->parent->busn_res; + + ret = insert_resource(parent_res, res); + + dev_printk(KERN_DEBUG, &b->dev, + "busn_res: %pR %s inserted under %pR\n", + res, ret ? "can not be" : "is", parent_res); + } else + dev_printk(KERN_DEBUG, &b->dev, + "busn_res: %pR for root bus\n", + res); +} + +void pci_bus_update_busn_res_end(struct pci_bus *b, int bus_max) +{ + struct resource *res = &b->busn_res; + struct resource old_res = *res; + + res->end = bus_max; + dev_printk(KERN_DEBUG, &b->dev, + "busn_res: %pR end updated to %pR\n", + &old_res, res); +} + +void pci_bus_release_busn_res(struct pci_bus *b) +{ + struct resource *res = &b->busn_res; + int ret; + + ret = release_resource(res); + dev_printk(KERN_DEBUG, &b->dev, + "busn_res: %pR %s released\n", + res, ret ? "can not be" : "is"); +} + struct pci_bus * __devinit pci_scan_root_bus(struct device *parent, int bus, struct pci_ops *ops, void *sysdata, struct list_head *resources) { diff --git a/include/linux/pci.h b/include/linux/pci.h index 2a33c5e..9584ad6 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -646,6 +646,9 @@ struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, void *sysdata); struct pci_bus *pci_create_root_bus(struct device *parent, int bus, struct pci_ops *ops, void *sysdata, struct list_head *resources); +void pci_bus_insert_busn_res(struct pci_bus *b, int bus, int busmax); +void pci_bus_update_busn_res_end(struct pci_bus *b, int busmax); +void pci_bus_release_busn_res(struct pci_bus *b); struct pci_bus * __devinit pci_scan_root_bus(struct device *parent, int bus, struct pci_ops *ops, void *sysdata, struct list_head *resources); -- 1.7.7 -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html