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[PATCH] powerpc: merge the rest of the vio code
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Stephen Rothwell
Paul Mackerras
parent
dd721ffd95
commit
c7f0e8cb56
@ -13,25 +13,102 @@
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/types.h>
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#include <linux/device.h>
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#include <linux/init.h>
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#include <linux/console.h>
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#include <linux/module.h>
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#include <linux/mm.h>
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#include <linux/dma-mapping.h>
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#include <linux/kobject.h>
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#include <asm/iommu.h>
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#include <asm/dma.h>
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#include <asm/vio.h>
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#include <asm/prom.h>
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#include <asm/firmware.h>
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#include <asm/tce.h>
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#include <asm/abs_addr.h>
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#include <asm/page.h>
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#include <asm/hvcall.h>
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#include <asm/iseries/vio.h>
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#include <asm/iseries/hv_types.h>
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#include <asm/iseries/hv_lp_config.h>
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#include <asm/iseries/hv_call_xm.h>
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#include <asm/iseries/iommu.h>
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struct vio_dev vio_bus_device = { /* fake "parent" device */
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extern struct subsystem devices_subsys; /* needed for vio_find_name() */
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static struct vio_dev vio_bus_device = { /* fake "parent" device */
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.name = vio_bus_device.dev.bus_id,
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.type = "",
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.dev.bus_id = "vio",
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.dev.bus = &vio_bus_type,
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};
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static struct vio_bus_ops vio_bus_ops;
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#ifdef CONFIG_PPC_ISERIES
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struct device *iSeries_vio_dev = &vio_bus_device.dev;
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EXPORT_SYMBOL(iSeries_vio_dev);
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static struct iommu_table veth_iommu_table;
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static struct iommu_table vio_iommu_table;
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static void __init iommu_vio_init(void)
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{
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iommu_table_getparms_iSeries(255, 0, 0xff, &veth_iommu_table);
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veth_iommu_table.it_size /= 2;
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vio_iommu_table = veth_iommu_table;
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vio_iommu_table.it_offset += veth_iommu_table.it_size;
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if (!iommu_init_table(&veth_iommu_table))
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printk("Virtual Bus VETH TCE table failed.\n");
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if (!iommu_init_table(&vio_iommu_table))
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printk("Virtual Bus VIO TCE table failed.\n");
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}
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#endif
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static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
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{
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#ifdef CONFIG_PPC_ISERIES
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if (firmware_has_feature(FW_FEATURE_ISERIES)) {
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if (strcmp(dev->type, "vlan") == 0)
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return &veth_iommu_table;
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return &vio_iommu_table;
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} else
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#endif
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{
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unsigned int *dma_window;
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struct iommu_table *newTceTable;
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unsigned long offset;
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int dma_window_property_size;
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dma_window = (unsigned int *)get_property(
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dev->dev.platform_data, "ibm,my-dma-window",
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&dma_window_property_size);
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if (!dma_window)
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return NULL;
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newTceTable = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
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/*
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* There should be some code to extract the phys-encoded
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* offset using prom_n_addr_cells(). However, according to
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* a comment on earlier versions, it's always zero, so we
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* don't bother
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*/
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offset = dma_window[1] >> PAGE_SHIFT;
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/* TCE table size - measured in tce entries */
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newTceTable->it_size = dma_window[4] >> PAGE_SHIFT;
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/* offset for VIO should always be 0 */
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newTceTable->it_offset = offset;
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newTceTable->it_busno = 0;
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newTceTable->it_index = (unsigned long)dma_window[0];
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newTceTable->it_type = TCE_VB;
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return iommu_init_table(newTceTable);
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}
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}
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/**
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* vio_match_device: - Tell if a VIO device has a matching
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@ -126,6 +203,16 @@ void vio_unregister_driver(struct vio_driver *viodrv)
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}
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EXPORT_SYMBOL(vio_unregister_driver);
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/* vio_dev refcount hit 0 */
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static void __devinit vio_dev_release(struct device *dev)
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{
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if (dev->platform_data) {
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/* XXX free TCE table */
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of_node_put(dev->platform_data);
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}
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kfree(to_vio_dev(dev));
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}
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/**
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* vio_register_device_node: - Register a new vio device.
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* @of_node: The OF node for this device.
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@ -185,10 +272,17 @@ struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node)
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if (unit_address != NULL)
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viodev->unit_address = *unit_address;
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}
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viodev->iommu_table = vio_bus_ops.build_iommu_table(viodev);
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viodev->iommu_table = vio_build_iommu_table(viodev);
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/* init generic 'struct device' fields: */
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viodev->dev.parent = &vio_bus_device.dev;
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viodev->dev.bus = &vio_bus_type;
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viodev->dev.release = vio_dev_release;
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/* register with generic device framework */
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if (vio_register_device(viodev) == NULL) {
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if (device_register(&viodev->dev)) {
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printk(KERN_ERR "%s: failed to register device %s\n",
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__FUNCTION__, viodev->dev.bus_id);
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/* XXX free TCE table */
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kfree(viodev);
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return NULL;
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@ -201,12 +295,18 @@ EXPORT_SYMBOL(vio_register_device_node);
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/**
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* vio_bus_init: - Initialize the virtual IO bus
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*/
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int __init vio_bus_init(struct vio_bus_ops *ops)
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static int __init vio_bus_init(void)
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{
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int err;
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struct device_node *node_vroot;
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vio_bus_ops = *ops;
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#ifdef CONFIG_PPC_ISERIES
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if (firmware_has_feature(FW_FEATURE_ISERIES)) {
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iommu_vio_init();
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vio_bus_device.iommu_table = &vio_iommu_table;
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iSeries_vio_dev = &vio_bus_device.dev;
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}
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#endif
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err = bus_register(&vio_bus_type);
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if (err) {
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@ -243,16 +343,7 @@ int __init vio_bus_init(struct vio_bus_ops *ops)
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return 0;
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}
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/* vio_dev refcount hit 0 */
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static void __devinit vio_dev_release(struct device *dev)
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{
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if (dev->platform_data) {
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/* XXX free TCE table */
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of_node_put(dev->platform_data);
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}
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kfree(to_vio_dev(dev));
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}
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__initcall(vio_bus_init);
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static ssize_t name_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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@ -274,23 +365,6 @@ static struct device_attribute vio_dev_attrs[] = {
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__ATTR_NULL
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};
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struct vio_dev * __devinit vio_register_device(struct vio_dev *viodev)
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{
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/* init generic 'struct device' fields: */
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viodev->dev.parent = &vio_bus_device.dev;
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viodev->dev.bus = &vio_bus_type;
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viodev->dev.release = vio_dev_release;
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/* register with generic device framework */
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if (device_register(&viodev->dev)) {
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printk(KERN_ERR "%s: failed to register device %s\n",
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__FUNCTION__, viodev->dev.bus_id);
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return NULL;
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}
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return viodev;
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}
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void __devinit vio_unregister_device(struct vio_dev *viodev)
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{
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device_unregister(&viodev->dev);
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@ -412,3 +486,59 @@ const void *vio_get_attribute(struct vio_dev *vdev, char *which, int *length)
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return get_property(vdev->dev.platform_data, which, length);
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}
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EXPORT_SYMBOL(vio_get_attribute);
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#ifdef CONFIG_PPC_PSERIES
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/* vio_find_name() - internal because only vio.c knows how we formatted the
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* kobject name
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* XXX once vio_bus_type.devices is actually used as a kset in
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* drivers/base/bus.c, this function should be removed in favor of
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* "device_find(kobj_name, &vio_bus_type)"
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*/
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static struct vio_dev *vio_find_name(const char *kobj_name)
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{
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struct kobject *found;
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found = kset_find_obj(&devices_subsys.kset, kobj_name);
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if (!found)
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return NULL;
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return to_vio_dev(container_of(found, struct device, kobj));
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}
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/**
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* vio_find_node - find an already-registered vio_dev
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* @vnode: device_node of the virtual device we're looking for
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*/
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struct vio_dev *vio_find_node(struct device_node *vnode)
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{
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uint32_t *unit_address;
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char kobj_name[BUS_ID_SIZE];
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/* construct the kobject name from the device node */
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unit_address = (uint32_t *)get_property(vnode, "reg", NULL);
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if (!unit_address)
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return NULL;
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snprintf(kobj_name, BUS_ID_SIZE, "%x", *unit_address);
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return vio_find_name(kobj_name);
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}
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EXPORT_SYMBOL(vio_find_node);
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int vio_enable_interrupts(struct vio_dev *dev)
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{
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int rc = h_vio_signal(dev->unit_address, VIO_IRQ_ENABLE);
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if (rc != H_SUCCESS)
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printk(KERN_ERR "vio: Error 0x%x enabling interrupts\n", rc);
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return rc;
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}
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EXPORT_SYMBOL(vio_enable_interrupts);
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int vio_disable_interrupts(struct vio_dev *dev)
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{
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int rc = h_vio_signal(dev->unit_address, VIO_IRQ_DISABLE);
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if (rc != H_SUCCESS)
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printk(KERN_ERR "vio: Error 0x%x disabling interrupts\n", rc);
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return rc;
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}
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EXPORT_SYMBOL(vio_disable_interrupts);
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#endif /* CONFIG_PPC_PSERIES */
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@ -3,7 +3,6 @@ EXTRA_CFLAGS += -mno-minimal-toc
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obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o mf.o lpevents.o \
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hvcall.o proc.o htab.o iommu.o misc.o irq.o
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obj-$(CONFIG_PCI) += pci.o vpdinfo.o
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obj-$(CONFIG_IBMVIO) += vio.o
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obj-$(CONFIG_SMP) += smp.o
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obj-$(CONFIG_VIOPATH) += viopath.o
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obj-$(CONFIG_MODULES) += ksyms.o
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@ -33,8 +33,7 @@
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#include <asm/abs_addr.h>
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#include <asm/pci-bridge.h>
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#include <asm/iseries/hv_call_xm.h>
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#include "iommu.h"
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#include <asm/iseries/iommu.h>
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extern struct list_head iSeries_Global_Device_List;
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@ -37,13 +37,13 @@
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#include <asm/iseries/hv_call_xm.h>
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#include <asm/iseries/mf.h>
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#include <asm/iseries/iommu.h>
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#include <asm/ppc-pci.h>
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#include "irq.h"
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#include "pci.h"
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#include "call_pci.h"
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#include "iommu.h"
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/*
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* Forward declares of prototypes.
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@ -1,67 +0,0 @@
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/*
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* IBM PowerPC iSeries Virtual I/O Infrastructure Support.
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*
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* Copyright (c) 2005 Stephen Rothwell, IBM Corp.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/types.h>
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#include <linux/device.h>
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#include <linux/init.h>
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#include <asm/vio.h>
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#include <asm/iommu.h>
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#include <asm/tce.h>
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#include <asm/abs_addr.h>
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#include <asm/page.h>
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#include <asm/iseries/vio.h>
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#include <asm/iseries/hv_types.h>
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#include <asm/iseries/hv_lp_config.h>
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#include <asm/iseries/hv_call_xm.h>
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#include "iommu.h"
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struct device *iSeries_vio_dev = &vio_bus_device.dev;
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EXPORT_SYMBOL(iSeries_vio_dev);
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static struct iommu_table veth_iommu_table;
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static struct iommu_table vio_iommu_table;
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static void __init iommu_vio_init(void)
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{
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iommu_table_getparms_iSeries(255, 0, 0xff, &veth_iommu_table);
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veth_iommu_table.it_size /= 2;
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vio_iommu_table = veth_iommu_table;
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vio_iommu_table.it_offset += veth_iommu_table.it_size;
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if (!iommu_init_table(&veth_iommu_table))
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printk("Virtual Bus VETH TCE table failed.\n");
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if (!iommu_init_table(&vio_iommu_table))
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printk("Virtual Bus VIO TCE table failed.\n");
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}
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static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
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{
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if (strcmp(dev->type, "vlan") == 0)
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return &veth_iommu_table;
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return &vio_iommu_table;
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}
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static struct vio_bus_ops vio_bus_ops_iseries = {
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.build_iommu_table = vio_build_iommu_table,
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};
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/**
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* vio_bus_init_iseries: - Initialize the iSeries virtual IO bus
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*/
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static int __init vio_bus_init_iseries(void)
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{
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iommu_vio_init();
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vio_bus_device.iommu_table = &vio_iommu_table;
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iSeries_vio_dev = &vio_bus_device.dev;
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return vio_bus_init(&vio_bus_ops_iseries);
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}
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__initcall(vio_bus_init_iseries);
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@ -2,7 +2,6 @@ obj-y := pci.o lpar.o hvCall.o nvram.o reconfig.o \
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setup.o iommu.o ras.o rtasd.o pci_dlpar.o \
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firmware.o
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obj-$(CONFIG_SMP) += smp.o
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obj-$(CONFIG_IBMVIO) += vio.o
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obj-$(CONFIG_XICS) += xics.o
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obj-$(CONFIG_SCANLOG) += scanlog.o
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obj-$(CONFIG_EEH) += eeh.o eeh_cache.o eeh_driver.o eeh_event.o
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@ -1,133 +0,0 @@
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/*
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* IBM PowerPC pSeries Virtual I/O Infrastructure Support.
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*
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* Copyright (c) 2003-2005 IBM Corp.
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* Dave Engebretsen engebret@us.ibm.com
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* Santiago Leon santil@us.ibm.com
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* Hollis Blanchard <hollisb@us.ibm.com>
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* Stephen Rothwell
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
|
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* as published by the Free Software Foundation; either version
|
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/mm.h>
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#include <linux/kobject.h>
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#include <asm/iommu.h>
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#include <asm/dma.h>
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#include <asm/prom.h>
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#include <asm/vio.h>
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#include <asm/hvcall.h>
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#include <asm/tce.h>
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extern struct subsystem devices_subsys; /* needed for vio_find_name() */
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/**
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* vio_build_iommu_table: - gets the dma information from OF and
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* builds the TCE tree.
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* @dev: the virtual device.
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*
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* Returns a pointer to the built tce tree, or NULL if it can't
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* find property.
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*/
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static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
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{
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unsigned int *dma_window;
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struct iommu_table *newTceTable;
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unsigned long offset;
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int dma_window_property_size;
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dma_window = (unsigned int *) get_property(dev->dev.platform_data, "ibm,my-dma-window", &dma_window_property_size);
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if(!dma_window) {
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return NULL;
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}
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newTceTable = (struct iommu_table *) kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
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/* There should be some code to extract the phys-encoded offset
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using prom_n_addr_cells(). However, according to a comment
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on earlier versions, it's always zero, so we don't bother */
|
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offset = dma_window[1] >> PAGE_SHIFT;
|
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|
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/* 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);
|
||||
}
|
||||
|
||||
static struct vio_bus_ops vio_bus_ops_pseries = {
|
||||
.build_iommu_table = vio_build_iommu_table,
|
||||
};
|
||||
|
||||
/**
|
||||
* vio_bus_init_pseries: - Initialize the pSeries virtual IO bus
|
||||
*/
|
||||
static int __init vio_bus_init_pseries(void)
|
||||
{
|
||||
return vio_bus_init(&vio_bus_ops_pseries);
|
||||
}
|
||||
|
||||
__initcall(vio_bus_init_pseries);
|
||||
|
||||
/* 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);
|
||||
@ -1,5 +1,5 @@
|
||||
#ifndef _PLATFORMS_ISERIES_IOMMU_H
|
||||
#define _PLATFORMS_ISERIES_IOMMU_H
|
||||
#ifndef _ASM_POWERPC_ISERIES_IOMMU_H
|
||||
#define _ASM_POWERPC_ISERIES_IOMMU_H
|
||||
|
||||
/*
|
||||
* Copyright (C) 2005 Stephen Rothwell, IBM Corporation
|
||||
@ -32,4 +32,4 @@ extern void iommu_table_getparms_iSeries(unsigned long busno,
|
||||
unsigned char slotno, unsigned char virtbus,
|
||||
struct iommu_table *tbl);
|
||||
|
||||
#endif /* _PLATFORMS_ISERIES_IOMMU_H */
|
||||
#endif /* _ASM_POWERPC_ISERIES_IOMMU_H */
|
||||
@ -64,22 +64,14 @@ struct vio_driver {
|
||||
struct device_driver driver;
|
||||
};
|
||||
|
||||
struct vio_bus_ops {
|
||||
struct iommu_table *(*build_iommu_table)(struct vio_dev *dev);
|
||||
};
|
||||
|
||||
extern struct dma_mapping_ops vio_dma_ops;
|
||||
extern struct bus_type vio_bus_type;
|
||||
extern struct vio_dev vio_bus_device;
|
||||
|
||||
extern int vio_register_driver(struct vio_driver *drv);
|
||||
extern void vio_unregister_driver(struct vio_driver *drv);
|
||||
|
||||
extern struct vio_dev * __devinit vio_register_device(struct vio_dev *viodev);
|
||||
extern void __devinit vio_unregister_device(struct vio_dev *dev);
|
||||
|
||||
extern int vio_bus_init(struct vio_bus_ops *);
|
||||
|
||||
struct device_node;
|
||||
|
||||
extern struct vio_dev * __devinit vio_register_device_node(
|
||||
|
||||
Loading…
Reference in New Issue
Block a user