Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy...

[pandora-kernel.git] / arch / sparc64 / kernel / pci_sun4v.c

diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index fe46ace..1aa8e04 100644 (file)
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -365,8 +365,7 @@ static void dma_4v_unmap_single(struct device *dev, dma_addr_t bus_addr,
        spin_unlock_irqrestore(&iommu->lock, flags);
 }
 
-#define SG_ENT_PHYS_ADDRESS(SG)        \
-       (__pa(page_address((SG)->page)) + (SG)->offset)
+#define SG_ENT_PHYS_ADDRESS(SG)        (__pa(sg_virt((SG))))
 
 static long fill_sg(long entry, struct device *dev,
                    struct scatterlist *sg,
@@ -477,9 +476,7 @@ static int dma_4v_map_sg(struct device *dev, struct scatterlist *sglist,
        /* Fast path single entry scatterlists. */
        if (nelems == 1) {
                sglist->dma_address =
-                       dma_4v_map_single(dev,
-                                         (page_address(sglist->page) +
-                                          sglist->offset),
+                       dma_4v_map_single(dev, sg_virt(sglist),
                                          sglist->length, direction);
                if (unlikely(sglist->dma_address == DMA_ERROR_CODE))
                        return 0;
@@ -615,7 +612,7 @@ const struct dma_ops sun4v_dma_ops = {
        .sync_sg_for_cpu                = dma_4v_sync_sg_for_cpu,
 };
 
-static void pci_sun4v_scan_bus(struct pci_pbm_info *pbm)
+static void __init pci_sun4v_scan_bus(struct pci_pbm_info *pbm)
 {
        struct property *prop;
        struct device_node *dp;
@@ -963,7 +960,8 @@ static void pci_sun4v_msi_init(struct pci_pbm_info *pbm)
 }
 #endif /* !(CONFIG_PCI_MSI) */
 
-static void __init pci_sun4v_pbm_init(struct pci_controller_info *p, struct device_node *dp, u32 devhandle)
+static void __init pci_sun4v_pbm_init(struct pci_controller_info *p,
+                                     struct device_node *dp, u32 devhandle)
 {
        struct pci_pbm_info *pbm;
 
@@ -1025,6 +1023,10 @@ void __init sun4v_pci_init(struct device_node *dp, char *model_name)
        }
 
        prop = of_find_property(dp, "reg", NULL);
+       if (!prop) {
+               prom_printf("SUN4V_PCI: Could not find config registers\n");
+               prom_halt();
+       }
        regs = prop->value;
 
        devhandle = (regs->phys_addr >> 32UL) & 0x0fffffff;