tree 25a20ad9071dea6ccd4a740ddcfff1691151ec84
parent 6312236fe82bbd3b0e1dee60b3eb3b270a2f6aeb
author Stephen Rothwell <[EMAIL PROTECTED]> Tue, 12 Jul 2005 17:50:26 +1000
committer Paul Mackerras <[EMAIL PROTECTED]> Mon, 29 Aug 2005 10:53:32 +1000

[PATCH] ppc64: split pSeries specific parts out of vio.c

This patch just splits out the pSeries specific parts of vio.c.

Signed-off-by: Stephen Rothwell <[EMAIL PROTECTED]>
Signed-off-by: Paul Mackerras <[EMAIL PROTECTED]>

 arch/ppc64/kernel/Makefile      |    1 
 arch/ppc64/kernel/iSeries_vio.c |    2 
 arch/ppc64/kernel/pSeries_vio.c |  266 ++++++++++++++++++++++++++++++++++++
 arch/ppc64/kernel/vio.c         |  290 +---------------------------------------
 include/asm-ppc64/vio.h         |    4 
 5 files changed, 284 insertions(+), 279 deletions(-)

diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
--- a/arch/ppc64/kernel/Makefile
+++ b/arch/ppc64/kernel/Makefile
@@ -51,6 +51,7 @@ obj-$(CONFIG_HVC_CONSOLE)     += hvconsole.o
 obj-$(CONFIG_BOOTX_TEXT)       += btext.o
 obj-$(CONFIG_HVCS)             += hvcserver.o
 
+vio-obj-$(CONFIG_PPC_PSERIES)  += pSeries_vio.o
 vio-obj-$(CONFIG_PPC_ISERIES)  += iSeries_vio.o
 obj-$(CONFIG_IBMVIO)           += vio.o $(vio-obj-y)
 obj-$(CONFIG_XICS)             += xics.o
diff --git a/arch/ppc64/kernel/iSeries_vio.c b/arch/ppc64/kernel/iSeries_vio.c
--- a/arch/ppc64/kernel/iSeries_vio.c
+++ b/arch/ppc64/kernel/iSeries_vio.c
@@ -131,7 +131,7 @@ static int __init vio_bus_init_iseries(v
 {
        int err;
 
-       err = vio_bus_init(vio_match_device_iseries);
+       err = vio_bus_init(vio_match_device_iseries, NULL, NULL);
        if (err == 0) {
                iommu_vio_init();
                vio_bus_device.iommu_table = &vio_iommu_table;
diff --git a/arch/ppc64/kernel/pSeries_vio.c b/arch/ppc64/kernel/pSeries_vio.c
new file mode 100644
--- /dev/null
+++ b/arch/ppc64/kernel/pSeries_vio.c
@@ -0,0 +1,266 @@
+/*
+ * IBM PowerPC pSeries Virtual I/O Infrastructure Support.
+ *
+ *    Copyright (c) 2003-2005 IBM Corp.
+ *     Dave Engebretsen [EMAIL PROTECTED]
+ *     Santiago Leon [EMAIL PROTECTED]
+ *     Hollis Blanchard <[EMAIL PROTECTED]>
+ *     Stephen Rothwell
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/kobject.h>
+#include <asm/iommu.h>
+#include <asm/dma.h>
+#include <asm/vio.h>
+#include <asm/hvcall.h>
+
+extern struct subsystem devices_subsys; /* needed for vio_find_name() */
+
+static void probe_bus_pseries(void)
+{
+       struct device_node *node_vroot, *of_node;
+
+       node_vroot = find_devices("vdevice");
+       if ((node_vroot == NULL) || (node_vroot->child == NULL))
+               /* this machine doesn't do virtual IO, and that's ok */
+               return;
+
+       /*
+        * Create struct vio_devices for each virtual device in the device tree.
+        * Drivers will associate with them later.
+        */
+       for (of_node = node_vroot->child; of_node != NULL;
+                       of_node = of_node->sibling) {
+               printk(KERN_DEBUG "%s: processing %p\n", __FUNCTION__, of_node);
+               vio_register_device_node(of_node);
+       }
+}
+
+/**
+ * vio_match_device_pseries: - Tell if a pSeries VIO device matches a
+ *     vio_device_id
+ */
+static int vio_match_device_pseries(const struct vio_device_id *id,
+               const struct vio_dev *dev)
+{
+       return (strncmp(dev->type, id->type, strlen(id->type)) == 0) &&
+                       device_is_compatible(dev->dev.platform_data, 
id->compat);
+}
+
+static void vio_release_device_pseries(struct device *dev)
+{
+       /* XXX free TCE table */
+       of_node_put(dev->platform_data);
+}
+
+static ssize_t viodev_show_devspec(struct device *dev,
+               struct device_attribute *attr, char *buf)
+{
+       struct device_node *of_node = dev->platform_data;
+
+       return sprintf(buf, "%s\n", of_node->full_name);
+}
+DEVICE_ATTR(devspec, S_IRUSR | S_IRGRP | S_IROTH, viodev_show_devspec, NULL);
+
+static void vio_unregister_device_pseries(struct vio_dev *viodev)
+{
+       device_remove_file(&viodev->dev, &dev_attr_devspec);
+}
+
+/**
+ * vio_bus_init_pseries: - Initialize the pSeries virtual IO bus
+ */
+static int __init vio_bus_init_pseries(void)
+{
+       int err;
+
+       err = vio_bus_init(vio_match_device_pseries,
+                       vio_unregister_device_pseries,
+                       vio_release_device_pseries);
+       if (err == 0)
+               probe_bus_pseries();
+       return err;
+}
+
+__initcall(vio_bus_init_pseries);
+
+/**
+ * vio_build_iommu_table: - gets the dma information from OF and
+ *     builds the TCE tree.
+ * @dev: the virtual device.
+ *
+ * Returns a pointer to the built tce tree, or NULL if it can't
+ * find property.
+*/
+static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
+{
+       unsigned int *dma_window;
+       struct iommu_table *newTceTable;
+       unsigned long offset;
+       int dma_window_property_size;
+
+       dma_window = (unsigned int *) get_property(dev->dev.platform_data, 
"ibm,my-dma-window", &dma_window_property_size);
+       if(!dma_window) {
+               return NULL;
+       }
+
+       newTceTable = (struct iommu_table *) kmalloc(sizeof(struct 
iommu_table), GFP_KERNEL);
+
+       /*  There should be some code to extract the phys-encoded offset
+               using prom_n_addr_cells(). However, according to a comment
+               on earlier versions, it's always zero, so we don't bother */
+       offset = dma_window[1] >>  PAGE_SHIFT;
+
+       /* TCE table size - measured in tce entries */
+       newTceTable->it_size            = dma_window[4] >> PAGE_SHIFT;
+       /* offset for VIO should always be 0 */
+       newTceTable->it_offset          = offset;
+       newTceTable->it_busno           = 0;
+       newTceTable->it_index           = (unsigned long)dma_window[0];
+       newTceTable->it_type            = TCE_VB;
+
+       return iommu_init_table(newTceTable);
+}
+
+/**
+ * vio_register_device_node: - Register a new vio device.
+ * @of_node:   The OF node for this device.
+ *
+ * Creates and initializes a vio_dev structure from the data in
+ * of_node (dev.platform_data) and adds it to the list of virtual devices.
+ * Returns a pointer to the created vio_dev or NULL if node has
+ * NULL device_type or compatible fields.
+ */
+struct vio_dev * __devinit vio_register_device_node(struct device_node 
*of_node)
+{
+       struct vio_dev *viodev;
+       unsigned int *unit_address;
+       unsigned int *irq_p;
+
+       /* we need the 'device_type' property, in order to match with drivers */
+       if ((NULL == of_node->type)) {
+               printk(KERN_WARNING
+                       "%s: node %s missing 'device_type'\n", __FUNCTION__,
+                       of_node->name ? of_node->name : "<unknown>");
+               return NULL;
+       }
+
+       unit_address = (unsigned int *)get_property(of_node, "reg", NULL);
+       if (!unit_address) {
+               printk(KERN_WARNING "%s: node %s missing 'reg'\n", __FUNCTION__,
+                       of_node->name ? of_node->name : "<unknown>");
+               return NULL;
+       }
+
+       /* allocate a vio_dev for this node */
+       viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL);
+       if (!viodev) {
+               return NULL;
+       }
+       memset(viodev, 0, sizeof(struct vio_dev));
+
+       viodev->dev.platform_data = of_node_get(of_node);
+
+       viodev->irq = NO_IRQ;
+       irq_p = (unsigned int *)get_property(of_node, "interrupts", NULL);
+       if (irq_p) {
+               int virq = virt_irq_create_mapping(*irq_p);
+               if (virq == NO_IRQ) {
+                       printk(KERN_ERR "Unable to allocate interrupt "
+                              "number for %s\n", of_node->full_name);
+               } else
+                       viodev->irq = irq_offset_up(virq);
+       }
+
+       snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%x", *unit_address);
+
+       /* register with generic device framework */
+       if (vio_register_device_common(viodev, of_node->name, of_node->type,
+                               *unit_address, vio_build_iommu_table(viodev))
+                       == NULL) {
+               /* XXX free TCE table */
+               kfree(viodev);
+               return NULL;
+       }
+       device_create_file(&viodev->dev, &dev_attr_devspec);
+
+       return viodev;
+}
+EXPORT_SYMBOL(vio_register_device_node);
+
+/**
+ * vio_get_attribute: - get attribute for virtual device
+ * @vdev:      The vio device to get property.
+ * @which:     The property/attribute to be extracted.
+ * @length:    Pointer to length of returned data size (unused if NULL).
+ *
+ * Calls prom.c's get_property() to return the value of the
+ * attribute specified by the preprocessor constant @which
+*/
+const void * vio_get_attribute(struct vio_dev *vdev, void* which, int* length)
+{
+       return get_property(vdev->dev.platform_data, (char*)which, length);
+}
+EXPORT_SYMBOL(vio_get_attribute);
+
+/* vio_find_name() - internal because only vio.c knows how we formatted the
+ * kobject name
+ * XXX once vio_bus_type.devices is actually used as a kset in
+ * drivers/base/bus.c, this function should be removed in favor of
+ * "device_find(kobj_name, &vio_bus_type)"
+ */
+static struct vio_dev *vio_find_name(const char *kobj_name)
+{
+       struct kobject *found;
+
+       found = kset_find_obj(&devices_subsys.kset, kobj_name);
+       if (!found)
+               return NULL;
+
+       return to_vio_dev(container_of(found, struct device, kobj));
+}
+
+/**
+ * vio_find_node - find an already-registered vio_dev
+ * @vnode: device_node of the virtual device we're looking for
+ */
+struct vio_dev *vio_find_node(struct device_node *vnode)
+{
+       uint32_t *unit_address;
+       char kobj_name[BUS_ID_SIZE];
+
+       /* construct the kobject name from the device node */
+       unit_address = (uint32_t *)get_property(vnode, "reg", NULL);
+       if (!unit_address)
+               return NULL;
+       snprintf(kobj_name, BUS_ID_SIZE, "%x", *unit_address);
+
+       return vio_find_name(kobj_name);
+}
+EXPORT_SYMBOL(vio_find_node);
+
+int vio_enable_interrupts(struct vio_dev *dev)
+{
+       int rc = h_vio_signal(dev->unit_address, VIO_IRQ_ENABLE);
+       if (rc != H_Success)
+               printk(KERN_ERR "vio: Error 0x%x enabling interrupts\n", rc);
+       return rc;
+}
+EXPORT_SYMBOL(vio_enable_interrupts);
+
+int vio_disable_interrupts(struct vio_dev *dev)
+{
+       int rc = h_vio_signal(dev->unit_address, VIO_IRQ_DISABLE);
+       if (rc != H_Success)
+               printk(KERN_ERR "vio: Error 0x%x disabling interrupts\n", rc);
+       return rc;
+}
+EXPORT_SYMBOL(vio_disable_interrupts);
diff --git a/arch/ppc64/kernel/vio.c b/arch/ppc64/kernel/vio.c
--- a/arch/ppc64/kernel/vio.c
+++ b/arch/ppc64/kernel/vio.c
@@ -1,10 +1,11 @@
 /*
  * IBM PowerPC Virtual I/O Infrastructure Support.
  *
- *    Copyright (c) 2003 IBM Corp.
+ *    Copyright (c) 2003-2005 IBM Corp.
  *     Dave Engebretsen [EMAIL PROTECTED]
  *     Santiago Leon [EMAIL PROTECTED]
  *     Hollis Blanchard <[EMAIL PROTECTED]>
+ *     Stephen Rothwell
  *
  *      This program is free software; you can redistribute it and/or
  *      modify it under the terms of the GNU General Public License
@@ -14,29 +15,16 @@
 
 #include <linux/init.h>
 #include <linux/console.h>
-#include <linux/version.h>
 #include <linux/module.h>
-#include <linux/kobject.h>
 #include <linux/mm.h>
 #include <linux/dma-mapping.h>
-#include <asm/rtas.h>
 #include <asm/iommu.h>
 #include <asm/dma.h>
-#include <asm/ppcdebug.h>
 #include <asm/vio.h>
-#include <asm/hvcall.h>
-
-#define DBGENTER() pr_debug("%s entered\n", __FUNCTION__)
-
-extern struct subsystem devices_subsys; /* needed for vio_find_name() */
 
 static const struct vio_device_id *vio_match_device(
                const struct vio_device_id *, const struct vio_dev *);
 
-#ifdef CONFIG_PPC_PSERIES
-static struct iommu_table *vio_build_iommu_table(struct vio_dev *);
-static int vio_num_address_cells;
-#endif
 struct vio_dev vio_bus_device  = { /* fake "parent" device */
        .name = vio_bus_device.dev.bus_id,
        .type = "",
@@ -46,6 +34,8 @@ struct vio_dev vio_bus_device  = { /* fa
 
 static int (*is_match)(const struct vio_device_id *id,
                const struct vio_dev *dev);
+static void (*unregister_device_callback)(struct vio_dev *dev);
+static void (*release_device_callback)(struct device *dev);
 
 /* convert from struct device to struct vio_dev and pass to driver.
  * dev->driver has already been set by generic code because vio_bus_match
@@ -57,8 +47,6 @@ static int vio_bus_probe(struct device *
        const struct vio_device_id *id;
        int error = -ENODEV;
 
-       DBGENTER();
-
        if (!viodrv->probe)
                return error;
 
@@ -76,8 +64,6 @@ static int vio_bus_remove(struct device 
        struct vio_dev *viodev = to_vio_dev(dev);
        struct vio_driver *viodrv = to_vio_driver(dev->driver);
 
-       DBGENTER();
-
        if (viodrv->remove) {
                return viodrv->remove(viodev);
        }
@@ -127,8 +113,6 @@ EXPORT_SYMBOL(vio_unregister_driver);
 static const struct vio_device_id * vio_match_device(const struct 
vio_device_id *ids,
        const struct vio_dev *dev)
 {
-       DBGENTER();
-
        while (ids->type) {
                if (is_match(ids, dev))
                        return ids;
@@ -137,39 +121,19 @@ static const struct vio_device_id * vio_
        return NULL;
 }
 
-#ifdef CONFIG_PPC_PSERIES
-static void probe_bus_pseries(void)
-{
-       struct device_node *node_vroot, *of_node;
-
-       node_vroot = find_devices("vdevice");
-       if ((node_vroot == NULL) || (node_vroot->child == NULL))
-               /* this machine doesn't do virtual IO, and that's ok */
-               return;
-
-       vio_num_address_cells = prom_n_addr_cells(node_vroot->child);
-
-       /*
-        * Create struct vio_devices for each virtual device in the device tree.
-        * Drivers will associate with them later.
-        */
-       for (of_node = node_vroot->child; of_node != NULL;
-                       of_node = of_node->sibling) {
-               printk(KERN_DEBUG "%s: processing %p\n", __FUNCTION__, of_node);
-               vio_register_device_node(of_node);
-       }
-}
-#endif
-
 /**
  * vio_bus_init: - Initialize the virtual IO bus
  */
 int __init vio_bus_init(int (*match_func)(const struct vio_device_id *id,
-                       const struct vio_dev *dev))
+                       const struct vio_dev *dev),
+               void (*unregister_dev)(struct vio_dev *),
+               void (*release_dev)(struct device *))
 {
        int err;
 
        is_match = match_func;
+       unregister_device_callback = unregister_dev;
+       release_device_callback = release_dev;
 
        err = bus_register(&vio_bus_type);
        if (err) {
@@ -190,56 +154,14 @@ int __init vio_bus_init(int (*match_func
        return 0;
 }
 
-#ifdef CONFIG_PPC_PSERIES
-/**
- * vio_match_device_pseries: - Tell if a pSeries VIO device matches a
- *     vio_device_id
- */
-static int vio_match_device_pseries(const struct vio_device_id *id,
-               const struct vio_dev *dev)
-{
-       return (strncmp(dev->type, id->type, strlen(id->type)) == 0) &&
-                       device_is_compatible(dev->dev.platform_data, 
id->compat);
-}
-
-/**
- * vio_bus_init_pseries: - Initialize the pSeries virtual IO bus
- */
-static int __init vio_bus_init_pseries(void)
-{
-       int err;
-
-       err = vio_bus_init(vio_match_device_pseries);
-       if (err == 0)
-               probe_bus_pseries();
-       return err;
-}
-
-__initcall(vio_bus_init_pseries);
-#endif
-
 /* vio_dev refcount hit 0 */
 static void __devinit vio_dev_release(struct device *dev)
 {
-       DBGENTER();
-
-#ifdef CONFIG_PPC_PSERIES
-       /* XXX free TCE table */
-       of_node_put(dev->platform_data);
-#endif
+       if (release_device_callback)
+               release_device_callback(dev);
        kfree(to_vio_dev(dev));
 }
 
-#ifdef CONFIG_PPC_PSERIES
-static ssize_t viodev_show_devspec(struct device *dev, struct device_attribute 
*attr, char *buf)
-{
-       struct device_node *of_node = dev->platform_data;
-
-       return sprintf(buf, "%s\n", of_node->full_name);
-}
-DEVICE_ATTR(devspec, S_IRUSR | S_IRGRP | S_IROTH, viodev_show_devspec, NULL);
-#endif
-
 static ssize_t viodev_show_name(struct device *dev, struct device_attribute 
*attr, char *buf)
 {
        return sprintf(buf, "%s\n", to_vio_dev(dev)->name);
@@ -250,8 +172,6 @@ struct vio_dev * __devinit vio_register_
                struct vio_dev *viodev, char *name, char *type,
                uint32_t unit_address, struct iommu_table *iommu_table)
 {
-       DBGENTER();
-
        viodev->name = name;
        viodev->type = type;
        viodev->unit_address = unit_address;
@@ -272,197 +192,15 @@ struct vio_dev * __devinit vio_register_
        return viodev;
 }
 
-#ifdef CONFIG_PPC_PSERIES
-/**
- * vio_register_device_node: - Register a new vio device.
- * @of_node:   The OF node for this device.
- *
- * Creates and initializes a vio_dev structure from the data in
- * of_node (dev.platform_data) and adds it to the list of virtual devices.
- * Returns a pointer to the created vio_dev or NULL if node has
- * NULL device_type or compatible fields.
- */
-struct vio_dev * __devinit vio_register_device_node(struct device_node 
*of_node)
-{
-       struct vio_dev *viodev;
-       unsigned int *unit_address;
-       unsigned int *irq_p;
-
-       DBGENTER();
-
-       /* we need the 'device_type' property, in order to match with drivers */
-       if ((NULL == of_node->type)) {
-               printk(KERN_WARNING
-                       "%s: node %s missing 'device_type'\n", __FUNCTION__,
-                       of_node->name ? of_node->name : "<unknown>");
-               return NULL;
-       }
-
-       unit_address = (unsigned int *)get_property(of_node, "reg", NULL);
-       if (!unit_address) {
-               printk(KERN_WARNING "%s: node %s missing 'reg'\n", __FUNCTION__,
-                       of_node->name ? of_node->name : "<unknown>");
-               return NULL;
-       }
-
-       /* allocate a vio_dev for this node */
-       viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL);
-       if (!viodev) {
-               return NULL;
-       }
-       memset(viodev, 0, sizeof(struct vio_dev));
-
-       viodev->dev.platform_data = of_node_get(of_node);
-
-       viodev->irq = NO_IRQ;
-       irq_p = (unsigned int *)get_property(of_node, "interrupts", NULL);
-       if (irq_p) {
-               int virq = virt_irq_create_mapping(*irq_p);
-               if (virq == NO_IRQ) {
-                       printk(KERN_ERR "Unable to allocate interrupt "
-                              "number for %s\n", of_node->full_name);
-               } else
-                       viodev->irq = irq_offset_up(virq);
-       }
-
-       snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%x", *unit_address);
-
-       /* register with generic device framework */
-       if (vio_register_device_common(viodev, of_node->name, of_node->type,
-                               *unit_address, vio_build_iommu_table(viodev))
-                       == NULL) {
-               /* XXX free TCE table */
-               kfree(viodev);
-               return NULL;
-       }
-       device_create_file(&viodev->dev, &dev_attr_devspec);
-
-       return viodev;
-}
-EXPORT_SYMBOL(vio_register_device_node);
-#endif
-
 void __devinit vio_unregister_device(struct vio_dev *viodev)
 {
-       DBGENTER();
-#ifdef CONFIG_PPC_PSERIES
-       device_remove_file(&viodev->dev, &dev_attr_devspec);
-#endif
+       if (unregister_device_callback)
+               unregister_device_callback(viodev);
        device_remove_file(&viodev->dev, &dev_attr_name);
        device_unregister(&viodev->dev);
 }
 EXPORT_SYMBOL(vio_unregister_device);
 
-#ifdef CONFIG_PPC_PSERIES
-/**
- * vio_get_attribute: - get attribute for virtual device
- * @vdev:      The vio device to get property.
- * @which:     The property/attribute to be extracted.
- * @length:    Pointer to length of returned data size (unused if NULL).
- *
- * Calls prom.c's get_property() to return the value of the
- * attribute specified by the preprocessor constant @which
-*/
-const void * vio_get_attribute(struct vio_dev *vdev, void* which, int* length)
-{
-       return get_property(vdev->dev.platform_data, (char*)which, length);
-}
-EXPORT_SYMBOL(vio_get_attribute);
-
-/* vio_find_name() - internal because only vio.c knows how we formatted the
- * kobject name
- * XXX once vio_bus_type.devices is actually used as a kset in
- * drivers/base/bus.c, this function should be removed in favor of
- * "device_find(kobj_name, &vio_bus_type)"
- */
-static struct vio_dev *vio_find_name(const char *kobj_name)
-{
-       struct kobject *found;
-
-       found = kset_find_obj(&devices_subsys.kset, kobj_name);
-       if (!found)
-               return NULL;
-
-       return to_vio_dev(container_of(found, struct device, kobj));
-}
-
-/**
- * vio_find_node - find an already-registered vio_dev
- * @vnode: device_node of the virtual device we're looking for
- */
-struct vio_dev *vio_find_node(struct device_node *vnode)
-{
-       uint32_t *unit_address;
-       char kobj_name[BUS_ID_SIZE];
-
-       /* construct the kobject name from the device node */
-       unit_address = (uint32_t *)get_property(vnode, "reg", NULL);
-       if (!unit_address)
-               return NULL;
-       snprintf(kobj_name, BUS_ID_SIZE, "%x", *unit_address);
-
-       return vio_find_name(kobj_name);
-}
-EXPORT_SYMBOL(vio_find_node);
-
-/**
- * vio_build_iommu_table: - gets the dma information from OF and builds the 
TCE tree.
- * @dev: the virtual device.
- *
- * Returns a pointer to the built tce tree, or NULL if it can't
- * find property.
-*/
-static struct iommu_table * vio_build_iommu_table(struct vio_dev *dev)
-{
-       unsigned int *dma_window;
-       struct iommu_table *newTceTable;
-       unsigned long offset;
-       int dma_window_property_size;
-
-       dma_window = (unsigned int *) get_property(dev->dev.platform_data, 
"ibm,my-dma-window", &dma_window_property_size);
-       if(!dma_window) {
-               return NULL;
-       }
-
-       newTceTable = (struct iommu_table *) kmalloc(sizeof(struct 
iommu_table), GFP_KERNEL);
-
-       /*  There should be some code to extract the phys-encoded offset
-               using prom_n_addr_cells(). However, according to a comment
-               on earlier versions, it's always zero, so we don't bother */
-       offset = dma_window[1] >>  PAGE_SHIFT;
-
-       /* TCE table size - measured in tce entries */
-       newTceTable->it_size            = dma_window[4] >> PAGE_SHIFT;
-       /* offset for VIO should always be 0 */
-       newTceTable->it_offset          = offset;
-       newTceTable->it_busno           = 0;
-       newTceTable->it_index           = (unsigned long)dma_window[0];
-       newTceTable->it_type            = TCE_VB;
-
-       return iommu_init_table(newTceTable);
-}
-
-int vio_enable_interrupts(struct vio_dev *dev)
-{
-       int rc = h_vio_signal(dev->unit_address, VIO_IRQ_ENABLE);
-       if (rc != H_Success) {
-               printk(KERN_ERR "vio: Error 0x%x enabling interrupts\n", rc);
-       }
-       return rc;
-}
-EXPORT_SYMBOL(vio_enable_interrupts);
-
-int vio_disable_interrupts(struct vio_dev *dev)
-{
-       int rc = h_vio_signal(dev->unit_address, VIO_IRQ_DISABLE);
-       if (rc != H_Success) {
-               printk(KERN_ERR "vio: Error 0x%x disabling interrupts\n", rc);
-       }
-       return rc;
-}
-EXPORT_SYMBOL(vio_disable_interrupts);
-#endif
-
 static dma_addr_t vio_map_single(struct device *dev, void *vaddr,
                          size_t size, enum dma_data_direction direction)
 {
@@ -526,8 +264,6 @@ static int vio_bus_match(struct device *
        const struct vio_device_id *ids = vio_drv->id_table;
        const struct vio_device_id *found_id;
 
-       DBGENTER();
-
        if (!ids)
                return 0;
 
diff --git a/include/asm-ppc64/vio.h b/include/asm-ppc64/vio.h
--- a/include/asm-ppc64/vio.h
+++ b/include/asm-ppc64/vio.h
@@ -106,6 +106,8 @@ static inline struct vio_dev *to_vio_dev
 }
 
 extern int vio_bus_init(int (*is_match)(const struct vio_device_id *id,
-                       const struct vio_dev *dev));
+                       const struct vio_dev *dev),
+               void (*)(struct vio_dev *),
+               void (*)(struct device *));
 
 #endif /* _ASM_VIO_H */
-
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