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/*
* IBM PowerPC iSeries Virtual I/O Infrastructure Support.
*
* Copyright (c) 2005 Stephen Rothwell, IBM Corp.
*
* 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/types.h>
#include <linux/device.h>
#include <linux/init.h>
#include <asm/vio.h>
#include <asm/iommu.h>
#include <asm/tce.h>
#include <asm/abs_addr.h>
#include <asm/page.h>
#include <asm/iseries/vio.h>
#include <asm/iseries/hv_types.h>
#include <asm/iseries/hv_lp_config.h>
#include <asm/iseries/hv_call_xm.h>
#include "iommu.h"
struct device *iSeries_vio_dev = &vio_bus_device.dev;
EXPORT_SYMBOL(iSeries_vio_dev);
static struct iommu_table veth_iommu_table;
static 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))
printk("Virtual Bus VETH TCE table failed.\n");
if (!iommu_init_table(&vio_iommu_table))
printk("Virtual Bus VIO TCE table failed.\n");
}
static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
{
if (strcmp(dev->type, "vlan") == 0)
return &veth_iommu_table;
return &vio_iommu_table;
}
/**
* vio_match_device_iseries: - Tell if a iSeries VIO device matches a
* vio_device_id
*/
static int vio_match_device_iseries(const struct vio_device_id *id,
const struct vio_dev *dev)
{
return strncmp(dev->type, id->type, strlen(id->type)) == 0;
}
static struct vio_bus_ops vio_bus_ops_iseries = {
.match = vio_match_device_iseries,
.build_iommu_table = vio_build_iommu_table,
};
/**
* vio_bus_init_iseries: - Initialize the iSeries virtual IO bus
*/
static int __init vio_bus_init_iseries(void)
{
iommu_vio_init();
vio_bus_device.iommu_table = &vio_iommu_table;
iSeries_vio_dev = &vio_bus_device.dev;
return vio_bus_init(&vio_bus_ops_iseries);
}
__initcall(vio_bus_init_iseries);
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