diff options
Diffstat (limited to 'arch/sparc/kernel/pci.c')
| -rw-r--r-- | arch/sparc/kernel/pci.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index a9448088e762..b290107170e9 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -181,6 +181,28 @@ static int __init ofpci_debug(char *str) __setup("ofpci_debug=", ofpci_debug); +static void of_fixup_pci_pref(struct pci_dev *dev, int index, + struct resource *res) +{ + struct pci_bus_region region; + + if (!(res->flags & IORESOURCE_MEM_64)) + return; + + if (!resource_size(res)) + return; + + pcibios_resource_to_bus(dev->bus, ®ion, res); + if (region.end <= ~((u32)0)) + return; + + if (!(res->flags & IORESOURCE_PREFETCH)) { + res->flags |= IORESOURCE_PREFETCH; + pci_info(dev, "reg 0x%x: fixup: pref added to 64-bit resource\n", + index); + } +} + static unsigned long pci_parse_of_flags(u32 addr0) { unsigned long flags = 0; @@ -244,6 +266,7 @@ static void pci_parse_of_addrs(struct platform_device *op, res->end = op_res->end; res->flags = flags; res->name = pci_name(dev); + of_fixup_pci_pref(dev, i, res); pci_info(dev, "reg 0x%x: %pR\n", i, res); } |