So could use it with hot-added root bus.
-v2: remove extra functions.
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
---
arch/x86/pci/i386.c | 52 ++++++++++++++++++++++++++++++++++----------------
1 files changed, 35 insertions(+), 17 deletions(-)
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 84696ed..42dd755 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -298,27 +298,45 @@ static void __init pcibios_allocate_resources(struct pci_bus *bus, int pass)
}
}
-static int __init pcibios_assign_resources(void)
+static void __init pcibios_allocate_dev_rom_resource(struct pci_dev *dev)
{
- struct pci_dev *dev = NULL;
struct resource *r;
- if (!(pci_probe & PCI_ASSIGN_ROMS)) {
- /*
- * Try to use BIOS settings for ROMs, otherwise let
- * pci_assign_unassigned_resources() allocate the new
- * addresses.
- */
- for_each_pci_dev(dev) {
- r = &dev->resource[PCI_ROM_RESOURCE];
- if (!r->flags || !r->start)
- continue;
- if (pci_claim_resource(dev, PCI_ROM_RESOURCE) < 0) {
- r->end -= r->start;
- r->start = 0;
- }
- }
+ /*
+ * Try to use BIOS settings for ROMs, otherwise let
+ * pci_assign_unassigned_resources() allocate the new
+ * addresses.
+ */
+ r = &dev->resource[PCI_ROM_RESOURCE];
+ if (!r->flags || !r->start)
+ return;
+
+ if (pci_claim_resource(dev, PCI_ROM_RESOURCE) < 0) {
+ r->end -= r->start;
+ r->start = 0;
}
+}
+static void __init pcibios_allocate_rom_resources(struct pci_bus *bus)
+{
+ struct pci_dev *dev;
+ struct pci_bus *child;
+
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ pcibios_allocate_dev_rom_resource(dev);
+
+ child = dev->subordinate;
+ if (child)
+ pcibios_allocate_rom_resources(child);
+ }
+}
+
+static int __init pcibios_assign_resources(void)
+{
+ struct pci_bus *bus;
+
+ if (!(pci_probe & PCI_ASSIGN_ROMS))
+ list_for_each_entry(bus, &pci_root_buses, node)
+ pcibios_allocate_rom_resources(bus);
pci_assign_unassigned_resources();
pcibios_fw_addr_list_del();
--
1.7.7
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