diff options
Diffstat (limited to 'arch/sparc64/kernel/pci_sun4v.c')
| -rw-r--r-- | arch/sparc64/kernel/pci_sun4v.c | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c index 4839c503c88..6bed2f6bf7c 100644 --- a/arch/sparc64/kernel/pci_sun4v.c +++ b/arch/sparc64/kernel/pci_sun4v.c @@ -587,22 +587,15 @@ static unsigned long __init probe_existing_entries(struct pci_pbm_info *pbm, static int __init pci_sun4v_iommu_init(struct pci_pbm_info *pbm) { + static const u32 vdma_default[] = { 0x80000000, 0x80000000 }; struct iommu *iommu = pbm->iommu; - struct property *prop; unsigned long num_tsb_entries, sz, tsbsize; - u32 vdma[2], dma_mask, dma_offset; - - prop = of_find_property(pbm->prom_node, "virtual-dma", NULL); - if (prop) { - u32 *val = prop->value; - - vdma[0] = val[0]; - vdma[1] = val[1]; - } else { - /* No property, use default values. */ - vdma[0] = 0x80000000; - vdma[1] = 0x80000000; - } + u32 dma_mask, dma_offset; + const u32 *vdma; + + vdma = of_get_property(pbm->prom_node, "virtual-dma", NULL); + if (!vdma) + vdma = vdma_default; if ((vdma[0] | vdma[1]) & ~IO_PAGE_MASK) { printk(KERN_ERR PFX "Strange virtual-dma[%08x:%08x].\n", |