diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/probe.c | 11 | ||||
| -rw-r--r-- | drivers/pci/setup-res.c | 19 |
2 files changed, 24 insertions, 6 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 6a3c1e72890..1ae9c3f50ff 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -649,6 +649,9 @@ static void pci_read_irq(struct pci_dev *dev) * Returns 0 on success and -1 if unknown type of device (not normal, bridge * or CardBus). */ + +#define LEGACY_IO_RESOURCE (IORESOURCE_IO | IORESOURCE_PCI_FIXED) + static int pci_setup_device(struct pci_dev * dev) { u32 class; @@ -692,18 +695,18 @@ static int pci_setup_device(struct pci_dev * dev) if ((progif & 1) == 0) { dev->resource[0].start = 0x1F0; dev->resource[0].end = 0x1F7; - dev->resource[0].flags = IORESOURCE_IO; + dev->resource[0].flags = LEGACY_IO_RESOURCE; dev->resource[1].start = 0x3F6; dev->resource[1].end = 0x3F6; - dev->resource[1].flags = IORESOURCE_IO; + dev->resource[1].flags = LEGACY_IO_RESOURCE; } if ((progif & 4) == 0) { dev->resource[2].start = 0x170; dev->resource[2].end = 0x177; - dev->resource[2].flags = IORESOURCE_IO; + dev->resource[2].flags = LEGACY_IO_RESOURCE; dev->resource[3].start = 0x376; dev->resource[3].end = 0x376; - dev->resource[3].flags = IORESOURCE_IO; + dev->resource[3].flags = LEGACY_IO_RESOURCE; } } break; diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index ab78e4bbdd8..cb4ced3560e 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -33,11 +33,22 @@ pci_update_resource(struct pci_dev *dev, struct resource *res, int resno) u32 new, check, mask; int reg; - /* Ignore resources for unimplemented BARs and unused resource slots - for 64 bit BARs. */ + /* + * Ignore resources for unimplemented BARs and unused resource slots + * for 64 bit BARs. + */ if (!res->flags) return; + /* + * Ignore non-moveable resources. This might be legacy resources for + * which no functional BAR register exists or another important + * system resource we should better not move around in system address + * space. + */ + if (res->flags & IORESOURCE_PCI_FIXED) + return; + pcibios_resource_to_bus(dev, ®ion, res); pr_debug(" got res [%llx:%llx] bus [%lx:%lx] flags %lx for " @@ -212,6 +223,10 @@ pdev_sort_resources(struct pci_dev *dev, struct resource_list *head) resource_size_t r_align; r = &dev->resource[i]; + + if (r->flags & IORESOURCE_PCI_FIXED) + continue; + r_align = r->end - r->start; if (!(r->flags) || r->parent) |