5 files changed, 21 insertions, 5 deletions

diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig
index 14e027f5be66..f39c953d5353 100644
--- a/arch/powerpc/platforms/40x/Kconfig
+++ b/arch/powerpc/platforms/40x/Kconfig
@@ -153,6 +153,7 @@ config 405GPR
 
 config XILINX_VIRTEX
         bool
+        select DEFAULT_UIMAGE
 
 config XILINX_VIRTEX_II_PRO
         bool
diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
index bf5c7ff2e6e5..0d83a6a0397d 100644
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -246,6 +246,7 @@ config IBM440EP_ERR42
 # Xilinx specific config options.
 config XILINX_VIRTEX
         bool
+        select DEFAULT_UIMAGE
 
 # Xilinx Virtex 5 FXT FPGA architecture, selected by a Xilinx board above
 config XILINX_VIRTEX_5_FXT
diff --git a/arch/powerpc/platforms/cell/ras.c b/arch/powerpc/platforms/cell/ras.c
index 5f961c464cc4..296b5268754e 100644
--- a/arch/powerpc/platforms/cell/ras.c
+++ b/arch/powerpc/platforms/cell/ras.c
@@ -122,12 +122,23 @@ static int __init cbe_ptcal_enable_on_node(int nid, int order)
 
         area->nid = nid;
         area->order = order;
-        area->pages = alloc_pages_node(area->nid, GFP_KERNEL, area->order);
+        area->pages = alloc_pages_node(area->nid, GFP_KERNEL | GFP_THISNODE,
+                                        area->order);
 
-        if (!area->pages)
+        if (!area->pages) {
+                printk(KERN_WARNING "%s: no page on node %d\n",
+                        __func__, area->nid);
                 goto out_free_area;
+        }
 
-        addr = __pa(page_address(area->pages));
+        /*
+         * We move the ptcal area to the middle of the allocated
+         * page, in order to avoid prefetches in memcpy and similar
+         * functions stepping on it.
+         */
+        addr = __pa(page_address(area->pages)) + (PAGE_SIZE >> 1);
+        printk(KERN_DEBUG "%s: enabling PTCAL on node %d address=0x%016lx\n",
+                        __func__, area->nid, addr);
 
         ret = -EIO;
         if (rtas_call(ptcal_start_tok, 3, 1, NULL, area->nid,
diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c
index ff43f1fd8343..40219823d9b0 100644
--- a/arch/powerpc/platforms/iseries/iommu.c
+++ b/arch/powerpc/platforms/iseries/iommu.c
@@ -174,9 +174,10 @@ static struct iommu_table *iommu_table_find(struct iommu_table * tbl)
 }
 
 
-void iommu_devnode_init_iSeries(struct pci_dev *pdev, struct device_node *dn)
+static void pci_dma_dev_setup_iseries(struct pci_dev *pdev)
 {
         struct iommu_table *tbl;
+        struct device_node *dn = pdev->sysdata;
         struct pci_dn *pdn = PCI_DN(dn);
         const u32 *lsn = of_get_property(dn, "linux,logical-slot-number", NULL);
 
@@ -194,6 +195,8 @@ void iommu_devnode_init_iSeries(struct pci_dev *pdev, struct device_node *dn)
                 kfree(tbl);
         pdev->dev.archdata.dma_data = pdn->iommu_table;
 }
+#else
+#define pci_dma_dev_setup_iseries       NULL
 #endif
 
 static struct iommu_table veth_iommu_table;
@@ -251,5 +254,6 @@ void iommu_init_early_iSeries(void)
         ppc_md.tce_build = tce_build_iSeries;
         ppc_md.tce_free  = tce_free_iSeries;
 
+        ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_iseries;
         set_pci_dma_ops(&dma_iommu_ops);
 }
diff --git a/arch/powerpc/platforms/iseries/pci.c b/arch/powerpc/platforms/iseries/pci.c
index 02a634faedbe..21cddc30220b 100644
--- a/arch/powerpc/platforms/iseries/pci.c
+++ b/arch/powerpc/platforms/iseries/pci.c
@@ -444,7 +444,6 @@ void __init iSeries_pcibios_fixup_resources(struct pci_dev *pdev)
         pdev->sysdata = node;
         allocate_device_bars(pdev);
         iseries_device_information(pdev, bus, *sub_bus);
-        iommu_devnode_init_iSeries(pdev, node);
 }
 
 /*