diff options
Diffstat (limited to 'drivers/pci/setup-res.c')
| -rw-r--r-- | drivers/pci/setup-res.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index 1ca21d2ba11..50d6685dcbc 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -26,13 +26,18 @@ #include "pci.h" -static void +void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno) { struct pci_bus_region region; u32 new, check, mask; int reg; + /* Ignore resources for unimplemented BARs and unused resource slots + for 64 bit BARs. */ + if (!res->flags) + return; + pcibios_resource_to_bus(dev, ®ion, res); pr_debug(" got res [%lx:%lx] bus [%lx:%lx] flags %lx for " @@ -48,7 +53,9 @@ pci_update_resource(struct pci_dev *dev, struct resource *res, int resno) if (resno < 6) { reg = PCI_BASE_ADDRESS_0 + 4 * resno; } else if (resno == PCI_ROM_RESOURCE) { - new |= res->flags & IORESOURCE_ROM_ENABLE; + if (!(res->flags & IORESOURCE_ROM_ENABLE)) + return; + new |= PCI_ROM_ADDRESS_ENABLE; reg = dev->rom_base_reg; } else { /* Hmm, non-standard resource. */ @@ -67,7 +74,7 @@ pci_update_resource(struct pci_dev *dev, struct resource *res, int resno) if ((new & (PCI_BASE_ADDRESS_SPACE|PCI_BASE_ADDRESS_MEM_TYPE_MASK)) == (PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64)) { - new = 0; /* currently everyone zeros the high address */ + new = region.start >> 16 >> 16; pci_write_config_dword(dev, reg + 4, new); pci_read_config_dword(dev, reg + 4, &check); if (check != new) { @@ -90,10 +97,7 @@ pci_claim_resource(struct pci_dev *dev, int resource) char *dtype = resource < PCI_BRIDGE_RESOURCES ? "device" : "bridge"; int err; - if (res->flags & IORESOURCE_IO) - root = &ioport_resource; - if (res->flags & IORESOURCE_MEM) - root = &iomem_resource; + root = pcibios_select_root(dev, res); err = -EINVAL; if (root != NULL) |