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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-11 18:50:26 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-11 18:50:26 -0800
commit7b67e751479d50b7f84d1a3cc5216eed5e534b66 (patch)
treea1a6746857cf65f04dde739fe271bf4143d55eaf /drivers/parisc
parent9f13a1fd452f11c18004ba2422a6384b424ec8a9 (diff)
parent76ccc297018d25d55b789bbd508861ef1e2cdb0c (diff)
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (80 commits) x86/PCI: Expand the x86_msi_ops to have a restore MSIs. PCI: Increase resource array mask bit size in pcim_iomap_regions() PCI: DEVICE_COUNT_RESOURCE should be equal to PCI_NUM_RESOURCES PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT) PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB x86/PCI: amd: factor out MMCONFIG discovery PCI: Enable ATS at the device state restore PCI: msi: fix imbalanced refcount of msi irq sysfs objects PCI: kconfig: English typo in pci/pcie/Kconfig PCI/PM/Runtime: make PCI traces quieter PCI: remove pci_create_bus() xtensa/PCI: convert to pci_scan_root_bus() for correct root bus resources x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus() x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented() x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan sparc32, leon/PCI: convert to pci_scan_root_bus() for correct root bus resources sparc/PCI: convert to pci_create_root_bus() sh/PCI: convert to pci_scan_root_bus() for correct root bus resources powerpc/PCI: convert to pci_create_root_bus() powerpc/PCI: split PHB part out of pcibios_map_io_space() ... Fix up conflicts in drivers/pci/msi.c and include/linux/pci_regs.h due to the same patches being applied in other branches.
Diffstat (limited to 'drivers/parisc')
-rw-r--r--drivers/parisc/dino.c47
-rw-r--r--drivers/parisc/lba_pci.c72
2 files changed, 63 insertions, 56 deletions
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index bcd5d54b7d4d..7ff10c1e8664 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -562,19 +562,6 @@ dino_fixup_bus(struct pci_bus *bus)
/* Firmware doesn't set up card-mode dino, so we have to */
if (is_card_dino(&dino_dev->hba.dev->id)) {
dino_card_setup(bus, dino_dev->hba.base_addr);
- } else if(bus->parent == NULL) {
- /* must have a dino above it, reparent the resources
- * into the dino window */
- int i;
- struct resource *res = &dino_dev->hba.lmmio_space;
-
- bus->resource[0] = &(dino_dev->hba.io_space);
- for(i = 0; i < DINO_MAX_LMMIO_RESOURCES; i++) {
- if(res[i].flags == 0)
- break;
- bus->resource[i+1] = &res[i];
- }
-
} else if (bus->parent) {
int i;
@@ -927,6 +914,7 @@ static int __init dino_probe(struct parisc_device *dev)
const char *version = "unknown";
char *name;
int is_cujo = 0;
+ LIST_HEAD(resources);
struct pci_bus *bus;
unsigned long hpa = dev->hpa.start;
@@ -1003,26 +991,37 @@ static int __init dino_probe(struct parisc_device *dev)
dev->dev.platform_data = dino_dev;
+ pci_add_resource(&resources, &dino_dev->hba.io_space);
+ if (dino_dev->hba.lmmio_space.flags)
+ pci_add_resource(&resources, &dino_dev->hba.lmmio_space);
+ if (dino_dev->hba.elmmio_space.flags)
+ pci_add_resource(&resources, &dino_dev->hba.elmmio_space);
+ if (dino_dev->hba.gmmio_space.flags)
+ pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
+
/*
** It's not used to avoid chicken/egg problems
** with configuration accessor functions.
*/
- dino_dev->hba.hba_bus = bus = pci_scan_bus_parented(&dev->dev,
- dino_current_bus, &dino_cfg_ops, NULL);
-
- if(bus) {
- /* This code *depends* on scanning being single threaded
- * if it isn't, this global bus number count will fail
- */
- dino_current_bus = bus->subordinate + 1;
- pci_bus_assign_resources(bus);
- pci_bus_add_devices(bus);
- } else {
+ dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev,
+ dino_current_bus, &dino_cfg_ops, NULL, &resources);
+ if (!bus) {
printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
dev_name(&dev->dev), dino_current_bus);
+ pci_free_resource_list(&resources);
/* increment the bus number in case of duplicates */
dino_current_bus++;
+ return 0;
}
+
+ bus->subordinate = pci_scan_child_bus(bus);
+
+ /* This code *depends* on scanning being single threaded
+ * if it isn't, this global bus number count will fail
+ */
+ dino_current_bus = bus->subordinate + 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 3aeb3279c92a..d5f3d753a108 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -653,7 +653,7 @@ lba_fixup_bus(struct pci_bus *bus)
}
} else {
/* Host-PCI Bridge */
- int err, i;
+ int err;
DBG("lba_fixup_bus() %s [%lx/%lx]/%lx\n",
ldev->hba.io_space.name,
@@ -669,9 +669,6 @@ lba_fixup_bus(struct pci_bus *bus)
lba_dump_res(&ioport_resource, 2);
BUG();
}
- /* advertize Host bridge resources to PCI bus */
- bus->resource[0] = &(ldev->hba.io_space);
- i = 1;
if (ldev->hba.elmmio_space.start) {
err = request_resource(&iomem_resource,
@@ -685,35 +682,17 @@ lba_fixup_bus(struct pci_bus *bus)
/* lba_dump_res(&iomem_resource, 2); */
/* BUG(); */
- } else
- bus->resource[i++] = &(ldev->hba.elmmio_space);
+ }
}
-
- /* Overlaps with elmmio can (and should) fail here.
- * We will prune (or ignore) the distributed range.
- *
- * FIXME: SBA code should register all elmmio ranges first.
- * that would take care of elmmio ranges routed
- * to a different rope (already discovered) from
- * getting registered *after* LBA code has already
- * registered it's distributed lmmio range.
- */
- if (truncate_pat_collision(&iomem_resource,
- &(ldev->hba.lmmio_space))) {
-
- printk(KERN_WARNING "LBA: lmmio_space [%lx/%lx] duplicate!\n",
- (long)ldev->hba.lmmio_space.start,
- (long)ldev->hba.lmmio_space.end);
- } else {
+ if (ldev->hba.lmmio_space.flags) {
err = request_resource(&iomem_resource, &(ldev->hba.lmmio_space));
if (err < 0) {
printk(KERN_ERR "FAILED: lba_fixup_bus() request for "
"lmmio_space [%lx/%lx]\n",
(long)ldev->hba.lmmio_space.start,
(long)ldev->hba.lmmio_space.end);
- } else
- bus->resource[i++] = &(ldev->hba.lmmio_space);
+ }
}
#ifdef CONFIG_64BIT
@@ -728,7 +707,6 @@ lba_fixup_bus(struct pci_bus *bus)
lba_dump_res(&iomem_resource, 2);
BUG();
}
- bus->resource[i++] = &(ldev->hba.gmmio_space);
}
#endif
@@ -1404,6 +1382,7 @@ static int __init
lba_driver_probe(struct parisc_device *dev)
{
struct lba_device *lba_dev;
+ LIST_HEAD(resources);
struct pci_bus *lba_bus;
struct pci_ops *cfg_ops;
u32 func_class;
@@ -1518,10 +1497,41 @@ lba_driver_probe(struct parisc_device *dev)
if (lba_dev->hba.bus_num.start < lba_next_bus)
lba_dev->hba.bus_num.start = lba_next_bus;
+ /* Overlaps with elmmio can (and should) fail here.
+ * We will prune (or ignore) the distributed range.
+ *
+ * FIXME: SBA code should register all elmmio ranges first.
+ * that would take care of elmmio ranges routed
+ * to a different rope (already discovered) from
+ * getting registered *after* LBA code has already
+ * registered it's distributed lmmio range.
+ */
+ if (truncate_pat_collision(&iomem_resource,
+ &(lba_dev->hba.lmmio_space))) {
+ printk(KERN_WARNING "LBA: lmmio_space [%lx/%lx] duplicate!\n",
+ (long)lba_dev->hba.lmmio_space.start,
+ (long)lba_dev->hba.lmmio_space.end);
+ lba_dev->hba.lmmio_space.flags = 0;
+ }
+
+ pci_add_resource(&resources, &lba_dev->hba.io_space);
+ if (lba_dev->hba.elmmio_space.start)
+ pci_add_resource(&resources, &lba_dev->hba.elmmio_space);
+ if (lba_dev->hba.lmmio_space.flags)
+ pci_add_resource(&resources, &lba_dev->hba.lmmio_space);
+ if (lba_dev->hba.gmmio_space.flags)
+ pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
+
dev->dev.platform_data = lba_dev;
lba_bus = lba_dev->hba.hba_bus =
- pci_scan_bus_parented(&dev->dev, lba_dev->hba.bus_num.start,
- cfg_ops, NULL);
+ pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
+ cfg_ops, NULL, &resources);
+ if (!lba_bus) {
+ pci_free_resource_list(&resources);
+ return 0;
+ }
+
+ lba_bus->subordinate = pci_scan_child_bus(lba_bus);
/* This is in lieu of calling pci_assign_unassigned_resources() */
if (is_pdc_pat()) {
@@ -1551,10 +1561,8 @@ lba_driver_probe(struct parisc_device *dev)
lba_dev->flags |= LBA_FLAG_SKIP_PROBE;
}
- if (lba_bus) {
- lba_next_bus = lba_bus->subordinate + 1;
- pci_bus_add_devices(lba_bus);
- }
+ lba_next_bus = lba_bus->subordinate + 1;
+ pci_bus_add_devices(lba_bus);
/* Whew! Finally done! Tell services we got this one covered. */
return 0;

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