[POWERPC] Remove more iSeries-specific stuff from vio.c

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

3 files changed, 52 insertions, 54 deletions

diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index eaf7f6992a2..b7c9e44ef18 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -48,61 +48,33 @@ static struct vio_dev vio_bus_device  = { /* fake "parent" device */
         .dev.bus = &vio_bus_type,
 };
 
-#ifdef CONFIG_PPC_ISERIES
-static struct iommu_table veth_iommu_table;
-struct iommu_table vio_iommu_table;
-
-static void __init iommu_vio_init(void)
-{
-        iommu_table_getparms_iSeries(255, 0, 0xff, &veth_iommu_table);
-        veth_iommu_table.it_size /= 2;
-        vio_iommu_table = veth_iommu_table;
-        vio_iommu_table.it_offset += veth_iommu_table.it_size;
-
-        if (!iommu_init_table(&veth_iommu_table, -1))
-                printk("Virtual Bus VETH TCE table failed.\n");
-        if (!iommu_init_table(&vio_iommu_table, -1))
-                printk("Virtual Bus VIO TCE table failed.\n");
-}
-#else
-static void __init iommu_vio_init(void)
-{
-}
-#endif
-
 static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
 {
-#ifdef CONFIG_PPC_ISERIES
-        if (firmware_has_feature(FW_FEATURE_ISERIES)) {
-                if (strcmp(dev->type, "network") == 0)
-                        return &veth_iommu_table;
-                return &vio_iommu_table;
-        } else
-#endif
-        {
-                const unsigned char *dma_window;
-                struct iommu_table *tbl;
-                unsigned long offset, size;
-
-                dma_window = of_get_property(dev->dev.archdata.of_node,
-                                          "ibm,my-dma-window", NULL);
-                if (!dma_window)
-                        return NULL;
-
-                tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
-
-                of_parse_dma_window(dev->dev.archdata.of_node, dma_window,
-                                    &tbl->it_index, &offset, &size);
-
-                /* TCE table size - measured in tce entries */
-                tbl->it_size = size >> IOMMU_PAGE_SHIFT;
-                /* offset for VIO should always be 0 */
-                tbl->it_offset = offset >> IOMMU_PAGE_SHIFT;
-                tbl->it_busno = 0;
-                tbl->it_type = TCE_VB;
-
-                return iommu_init_table(tbl, -1);
-        }
+        const unsigned char *dma_window;
+        struct iommu_table *tbl;
+        unsigned long offset, size;
+
+        if (firmware_has_feature(FW_FEATURE_ISERIES))
+                return vio_build_iommu_table_iseries(dev);
+
+        dma_window = of_get_property(dev->dev.archdata.of_node,
+                                  "ibm,my-dma-window", NULL);
+        if (!dma_window)
+                return NULL;
+
+        tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
+
+        of_parse_dma_window(dev->dev.archdata.of_node, dma_window,
+                            &tbl->it_index, &offset, &size);
+
+        /* TCE table size - measured in tce entries */
+        tbl->it_size = size >> IOMMU_PAGE_SHIFT;
+        /* offset for VIO should always be 0 */
+        tbl->it_offset = offset >> IOMMU_PAGE_SHIFT;
+        tbl->it_busno = 0;
+        tbl->it_type = TCE_VB;
+
+        return iommu_init_table(tbl, -1);
 }
 
 /**
diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c
index 3281f10bbd1..49e9c664ea8 100644
--- a/arch/powerpc/platforms/iseries/iommu.c
+++ b/arch/powerpc/platforms/iseries/iommu.c
@@ -31,6 +31,7 @@
 #include <linux/module.h>
 
 #include <asm/iommu.h>
+#include <asm/vio.h>
 #include <asm/tce.h>
 #include <asm/machdep.h>
 #include <asm/abs_addr.h>
@@ -191,7 +192,8 @@ void iommu_devnode_init_iSeries(struct pci_dev *pdev, struct device_node *dn)
 }
 #endif
 
-extern struct iommu_table vio_iommu_table;
+static struct iommu_table veth_iommu_table;
+static struct iommu_table vio_iommu_table;
 
 void *iseries_hv_alloc(size_t size, dma_addr_t *dma_handle, gfp_t flag)
 {
@@ -219,6 +221,26 @@ void iseries_hv_unmap(dma_addr_t dma_handle, size_t size,
         iommu_unmap_single(&vio_iommu_table, dma_handle, size, direction);
 }
 
+void __init iommu_vio_init(void)
+{
+        iommu_table_getparms_iSeries(255, 0, 0xff, &veth_iommu_table);
+        veth_iommu_table.it_size /= 2;
+        vio_iommu_table = veth_iommu_table;
+        vio_iommu_table.it_offset += veth_iommu_table.it_size;
+
+        if (!iommu_init_table(&veth_iommu_table, -1))
+                printk("Virtual Bus VETH TCE table failed.\n");
+        if (!iommu_init_table(&vio_iommu_table, -1))
+                printk("Virtual Bus VIO TCE table failed.\n");
+}
+
+struct iommu_table *vio_build_iommu_table_iseries(struct vio_dev *dev)
+{
+        if (strcmp(dev->type, "network") == 0)
+                return &veth_iommu_table;
+        return &vio_iommu_table;
+}
+
 void iommu_init_early_iSeries(void)
 {
         ppc_md.tce_build = tce_build_iSeries;
diff --git a/include/asm-powerpc/iseries/iommu.h b/include/asm-powerpc/iseries/iommu.h
index 6e323a13ac3..c59ee7e4bed 100644
--- a/include/asm-powerpc/iseries/iommu.h
+++ b/include/asm-powerpc/iseries/iommu.h
@@ -22,6 +22,7 @@
  */
 
 struct pci_dev;
+struct vio_dev;
 struct device_node;
 struct iommu_table;
 
@@ -34,4 +35,7 @@ extern void iommu_table_getparms_iSeries(unsigned long busno,
                 unsigned char slotno, unsigned char virtbus,
                 struct iommu_table *tbl);
 
+extern struct iommu_table *vio_build_iommu_table_iseries(struct vio_dev *dev);
+extern void iommu_vio_init(void);
+
 #endif /* _ASM_POWERPC_ISERIES_IOMMU_H */