diff options
Diffstat (limited to 'arch/sparc64/kernel/pci_sun4v.c')
| -rw-r--r-- | arch/sparc64/kernel/pci_sun4v.c | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c index 1d61353e2644..abd9bfb245cb 100644 --- a/arch/sparc64/kernel/pci_sun4v.c +++ b/arch/sparc64/kernel/pci_sun4v.c @@ -74,15 +74,47 @@ struct pci_iommu_ops pci_sun4v_iommu_ops = { static int pci_sun4v_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn, int where, int size, u32 *value) { - /* XXX Implement me! XXX */ - return 0; + struct pci_pbm_info *pbm = bus_dev->sysdata; + unsigned long devhandle = pbm->devhandle; + unsigned int bus = bus_dev->number; + unsigned int device = PCI_SLOT(devfn); + unsigned int func = PCI_FUNC(devfn); + unsigned long ret; + + ret = pci_sun4v_config_get(devhandle, + HV_PCI_DEVICE_BUILD(bus, device, func), + where, size); + switch (size) { + case 1: + *value = ret & 0xff; + break; + case 2: + *value = ret & 0xffff; + break; + case 4: + *value = ret & 0xffffffff; + break; + }; + + + return PCIBIOS_SUCCESSFUL; } static int pci_sun4v_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn, int where, int size, u32 value) { - /* XXX Implement me! XXX */ - return 0; + struct pci_pbm_info *pbm = bus_dev->sysdata; + unsigned long devhandle = pbm->devhandle; + unsigned int bus = bus_dev->number; + unsigned int device = PCI_SLOT(devfn); + unsigned int func = PCI_FUNC(devfn); + unsigned long ret; + + ret = pci_sun4v_config_put(devhandle, + HV_PCI_DEVICE_BUILD(bus, device, func), + where, size, value); + + return PCIBIOS_SUCCESSFUL; } static struct pci_ops pci_sun4v_ops = { |