aboutsummaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/include/asm/pci.h2
-rw-r--r--arch/powerpc/kernel/pci-common.c110
-rw-r--r--arch/powerpc/platforms/pseries/pci_dlpar.c2
3 files changed, 59 insertions, 55 deletions
diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index 39d547fde95..57a2a494886 100644
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -208,6 +208,8 @@ extern void pcibios_setup_new_device(struct pci_dev *dev);
extern void pcibios_claim_one_bus(struct pci_bus *b);
+extern void pcibios_allocate_bus_resources(struct pci_bus *bus);
+
extern void pcibios_resource_survey(void);
extern struct pci_controller *init_phb_dynamic(struct device_node *dn);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 1ec73938a00..f36936d9fda 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1239,69 +1239,66 @@ static int __init reparent_resources(struct resource *parent,
* as well.
*/
-static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
+void pcibios_allocate_bus_resources(struct pci_bus *bus)
{
- struct pci_bus *bus;
+ struct pci_bus *b;
int i;
struct resource *res, *pr;
- /* Depth-First Search on bus tree */
- list_for_each_entry(bus, bus_list, node) {
- for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
- if ((res = bus->resource[i]) == NULL || !res->flags
- || res->start > res->end)
- continue;
- if (bus->parent == NULL)
- pr = (res->flags & IORESOURCE_IO) ?
- &ioport_resource : &iomem_resource;
- else {
- /* Don't bother with non-root busses when
- * re-assigning all resources. We clear the
- * resource flags as if they were colliding
- * and as such ensure proper re-allocation
- * later.
+ for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
+ if ((res = bus->resource[i]) == NULL || !res->flags
+ || res->start > res->end)
+ continue;
+ if (bus->parent == NULL)
+ pr = (res->flags & IORESOURCE_IO) ?
+ &ioport_resource : &iomem_resource;
+ else {
+ /* Don't bother with non-root busses when
+ * re-assigning all resources. We clear the
+ * resource flags as if they were colliding
+ * and as such ensure proper re-allocation
+ * later.
+ */
+ if (ppc_pci_flags & PPC_PCI_REASSIGN_ALL_RSRC)
+ goto clear_resource;
+ pr = pci_find_parent_resource(bus->self, res);
+ if (pr == res) {
+ /* this happens when the generic PCI
+ * code (wrongly) decides that this
+ * bridge is transparent -- paulus
*/
- if (ppc_pci_flags & PPC_PCI_REASSIGN_ALL_RSRC)
- goto clear_resource;
- pr = pci_find_parent_resource(bus->self, res);
- if (pr == res) {
- /* this happens when the generic PCI
- * code (wrongly) decides that this
- * bridge is transparent -- paulus
- */
- continue;
- }
+ continue;
}
+ }
- DBG("PCI: %s (bus %d) bridge rsrc %d: %016llx-%016llx "
- "[0x%x], parent %p (%s)\n",
- bus->self ? pci_name(bus->self) : "PHB",
- bus->number, i,
- (unsigned long long)res->start,
- (unsigned long long)res->end,
- (unsigned int)res->flags,
- pr, (pr && pr->name) ? pr->name : "nil");
-
- if (pr && !(pr->flags & IORESOURCE_UNSET)) {
- if (request_resource(pr, res) == 0)
- continue;
- /*
- * Must be a conflict with an existing entry.
- * Move that entry (or entries) under the
- * bridge resource and try again.
- */
- if (reparent_resources(pr, res) == 0)
- continue;
- }
- printk(KERN_WARNING
- "PCI: Cannot allocate resource region "
- "%d of PCI bridge %d, will remap\n",
- i, bus->number);
-clear_resource:
- res->flags = 0;
+ DBG("PCI: %s (bus %d) bridge rsrc %d: %016llx-%016llx "
+ "[0x%x], parent %p (%s)\n",
+ bus->self ? pci_name(bus->self) : "PHB",
+ bus->number, i,
+ (unsigned long long)res->start,
+ (unsigned long long)res->end,
+ (unsigned int)res->flags,
+ pr, (pr && pr->name) ? pr->name : "nil");
+
+ if (pr && !(pr->flags & IORESOURCE_UNSET)) {
+ if (request_resource(pr, res) == 0)
+ continue;
+ /*
+ * Must be a conflict with an existing entry.
+ * Move that entry (or entries) under the
+ * bridge resource and try again.
+ */
+ if (reparent_resources(pr, res) == 0)
+ continue;
}
- pcibios_allocate_bus_resources(&bus->children);
+ printk(KERN_WARNING "PCI: Cannot allocate resource region "
+ "%d of PCI bridge %d, will remap\n", i, bus->number);
+clear_resource:
+ res->flags = 0;
}
+
+ list_for_each_entry(b, &bus->children, node)
+ pcibios_allocate_bus_resources(b);
}
static inline void __devinit alloc_resource(struct pci_dev *dev, int idx)
@@ -1372,10 +1369,13 @@ static void __init pcibios_allocate_resources(int pass)
void __init pcibios_resource_survey(void)
{
+ struct pci_bus *b;
+
/* Allocate and assign resources. If we re-assign everything, then
* we skip the allocate phase
*/
- pcibios_allocate_bus_resources(&pci_root_buses);
+ list_for_each_entry(b, &pci_root_buses, node)
+ pcibios_allocate_bus_resources(b);
if (!(ppc_pci_flags & PPC_PCI_REASSIGN_ALL_RSRC)) {
pcibios_allocate_resources(0);
diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c
index 21a6d55418f..31481dc485d 100644
--- a/arch/powerpc/platforms/pseries/pci_dlpar.c
+++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
@@ -189,6 +189,7 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
{
struct pci_controller *phb;
int primary;
+ struct pci_bus *b;
primary = list_empty(&hose_list);
phb = pcibios_alloc_controller(dn);
@@ -203,6 +204,7 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
eeh_add_device_tree_early(dn);
scan_phb(phb);
+ pcibios_allocate_bus_resources(phb->bus);
pcibios_fixup_new_pci_devices(phb->bus);
pci_bus_add_devices(phb->bus);
eeh_add_device_tree_late(phb->bus);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 23:49:03 +0000