aboutsummaryrefslogtreecommitdiffstats
path: root/arch/alpha/kernel/pci.c
diff options
context:
space:
mode:
authorBjorn Helgaas <bhelgaas@google.com>2011-10-28 16:26:11 -0600
committerJesse Barnes <jbarnes@virtuousgeek.org>2012-01-06 12:10:55 -0800
commita2f33da11ab9efba25d41e959de6338a9078fb36 (patch)
tree45d74834a4adb37d8e9554e134bc8d4dec638645 /arch/alpha/kernel/pci.c
parent7e00fe2e53fd3a1540febcb2d2bee9d0b2eea507 (diff)
alpha/PCI: convert to pci_scan_root_bus() for correct root bus resources
Convert from pci_scan_bus() to pci_scan_root_bus() and remove root bus resource fixups. This fixes the problem of "early" and "header" quirks seeing incorrect root bus resources. v2: fix up conversion CC: linux-alpha@vger.kernel.org Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch/alpha/kernel/pci.c')
-rw-r--r--arch/alpha/kernel/pci.c40
1 files changed, 20 insertions, 20 deletions
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index c9ab94ee1ca..fcb4b914d4b 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -281,27 +281,9 @@ pcibios_fixup_device_resources(struct pci_dev *dev, struct pci_bus *bus)
void __devinit
pcibios_fixup_bus(struct pci_bus *bus)
{
- /* Propagate hose info into the subordinate devices. */
-
- struct pci_controller *hose = bus->sysdata;
struct pci_dev *dev = bus->self;
- if (!dev) {
- /* Root bus. */
- u32 pci_mem_end;
- u32 sg_base = hose->sg_pci ? hose->sg_pci->dma_base : ~0;
- unsigned long end;
-
- bus->resource[0] = hose->io_space;
- bus->resource[1] = hose->mem_space;
-
- /* Adjust hose mem_space limit to prevent PCI allocations
- in the iommu windows. */
- pci_mem_end = min((u32)__direct_map_base, sg_base) - 1;
- end = hose->mem_space->start + pci_mem_end;
- if (hose->mem_space->end > end)
- hose->mem_space->end = end;
- } else if (pci_probe_only &&
+ if (pci_probe_only && dev &&
(dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
pci_read_bridge_bases(bus);
pcibios_fixup_device_resources(dev, bus);
@@ -414,13 +396,31 @@ void __init
common_init_pci(void)
{
struct pci_controller *hose;
+ struct list_head resources;
struct pci_bus *bus;
int next_busno;
int need_domain_info = 0;
+ u32 pci_mem_end;
+ u32 sg_base;
+ unsigned long end;
/* Scan all of the recorded PCI controllers. */
for (next_busno = 0, hose = hose_head; hose; hose = hose->next) {
- bus = pci_scan_bus(next_busno, alpha_mv.pci_ops, hose);
+ sg_base = hose->sg_pci ? hose->sg_pci->dma_base : ~0;
+
+ /* Adjust hose mem_space limit to prevent PCI allocations
+ in the iommu windows. */
+ pci_mem_end = min((u32)__direct_map_base, sg_base) - 1;
+ end = hose->mem_space->start + pci_mem_end;
+ if (hose->mem_space->end > end)
+ hose->mem_space->end = end;
+
+ INIT_LIST_HEAD(&resources);
+ pci_add_resource(&resources, hose->io_space);
+ pci_add_resource(&resources, hose->mem_space);
+
+ bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops,
+ hose, &resources);
hose->bus = bus;
hose->need_domain_info = need_domain_info;
next_busno = bus->subordinate + 1;