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authorYinghai Lu <yinghai@kernel.org>2012-05-17 18:51:12 -0700
committerBjorn Helgaas <bhelgaas@google.com>2012-06-13 15:42:24 -0600
commit30aa80da43a5f23728eae1516e3a1aad40e808dd (patch)
treef60ac025d7648e5b4b0960480e08d11d698b22cc /drivers/parisc
parentbe8e60d8bed118b19bd7038ac2f6ac6688d072d9 (diff)
downloadkernel-30aa80da43a5f23728eae1516e3a1aad40e808dd.tar.gz
parisc/PCI: register busn_res for root buses
Add the host bridge bus number aperture to the resource list. Like the MMIO and I/O port apertures, this is used when assigning resources to hot-added devices or in the case of conflicts. [bhelgaas: changelog, set flags directly, at LBA bus_num init] CC: Kyle McMartin <kyle@mcmartin.ca> CC: Helge Deller <deller@gmx.de> CC: linux-parisc@vger.kernel.org Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/parisc')
-rw-r--r--drivers/parisc/dino.c10
-rw-r--r--drivers/parisc/lba_pci.c8
2 files changed, 14 insertions, 4 deletions
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 70517b0f94e6..ffddc4f64268 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -898,6 +898,7 @@ static int __init dino_probe(struct parisc_device *dev)
LIST_HEAD(resources);
struct pci_bus *bus;
unsigned long hpa = dev->hpa.start;
+ int max;
name = "Dino";
if (is_card_dino(&dev->id)) {
@@ -983,6 +984,10 @@ static int __init dino_probe(struct parisc_device *dev)
if (dino_dev->hba.gmmio_space.flags)
pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
+ dino_dev->hba.bus_num.start = dino_current_bus;
+ dino_dev->hba.bus_num.end = 255;
+ dino_dev->hba.bus_num.flags = IORESOURCE_BUS;
+ pci_add_resource(&resources, &dino_dev->hba.bus_num);
/*
** It's not used to avoid chicken/egg problems
** with configuration accessor functions.
@@ -998,12 +1003,13 @@ static int __init dino_probe(struct parisc_device *dev)
return 0;
}
- bus->busn_res.end = pci_scan_child_bus(bus);
+ max = pci_scan_child_bus(bus);
+ pci_bus_update_busn_res_end(bus, max);
/* This code *depends* on scanning being single threaded
* if it isn't, this global bus number count will fail
*/
- dino_current_bus = bus->busn_res.end + 1;
+ dino_current_bus = max + 1;
pci_bus_assign_resources(bus);
pci_bus_add_devices(bus);
return 0;
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index cd8f9ce8720f..4f9cf2456f4e 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -989,6 +989,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
case PAT_PBNUM:
lba_dev->hba.bus_num.start = p->start;
lba_dev->hba.bus_num.end = p->end;
+ lba_dev->hba.bus_num.flags = IORESOURCE_BUS;
break;
case PAT_LMMIO:
@@ -1366,6 +1367,7 @@ lba_driver_probe(struct parisc_device *dev)
void *tmp_obj;
char *version;
void __iomem *addr = ioremap_nocache(dev->hpa.start, 4096);
+ int max;
/* Read HW Rev First */
func_class = READ_REG32(addr + LBA_FCLASS);
@@ -1502,6 +1504,8 @@ lba_driver_probe(struct parisc_device *dev)
if (lba_dev->hba.gmmio_space.flags)
pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
+ pci_add_resource(&resources, &lba_dev->hba.bus_num);
+
dev->dev.platform_data = lba_dev;
lba_bus = lba_dev->hba.hba_bus =
pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
@@ -1511,7 +1515,7 @@ lba_driver_probe(struct parisc_device *dev)
return 0;
}
- lba_bus->busn_res.end = pci_scan_child_bus(lba_bus);
+ max = pci_scan_child_bus(lba_bus);
/* This is in lieu of calling pci_assign_unassigned_resources() */
if (is_pdc_pat()) {
@@ -1541,7 +1545,7 @@ lba_driver_probe(struct parisc_device *dev)
lba_dev->flags |= LBA_FLAG_SKIP_PROBE;
}
- lba_next_bus = lba_res->busn_res.end + 1;
+ lba_next_bus = max + 1;
pci_bus_add_devices(lba_bus);
/* Whew! Finally done! Tell services we got this one covered. */