From 7eae642f75e0f7fbce7c37b2dfe0641ff1e9ebfd Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 9 Feb 2006 22:20:01 -0800 Subject: [SPARC64]: Implement SUN4V PCI config space access. Signed-off-by: David S. Miller --- arch/sparc64/kernel/pci_sun4v.c | 40 ++++++++++++++++++++++++++++++++++++---- 1 file changed, 36 insertions(+), 4 deletions(-) (limited to 'arch/sparc64/kernel/pci_sun4v.c') diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c index 1d61353e264..abd9bfb245c 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 = { -- cgit v1.2.3