95a1ca6cd8
We do this by putting them in the flattened device tree at setup time. This required the flattened device tree blob to be made bigger. Currenly we don't do anything with these. Also make a function static. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
131 lines
3.5 KiB
C
131 lines
3.5 KiB
C
/*
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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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/**
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* vio_register_device_iseries: - Register a new iSeries vio device.
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* @voidev: The device to register.
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*/
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static struct vio_dev *__init vio_register_device_iseries(char *type,
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uint32_t unit_num)
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{
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struct vio_dev *viodev;
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/* allocate a vio_dev for this device */
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viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL);
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if (!viodev)
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return NULL;
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memset(viodev, 0, sizeof(struct vio_dev));
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snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%s%d", type, unit_num);
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viodev->name = viodev->dev.bus_id;
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viodev->type = type;
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viodev->unit_address = unit_num;
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viodev->iommu_table = &vio_iommu_table;
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if (vio_register_device(viodev) == NULL) {
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kfree(viodev);
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return NULL;
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}
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return viodev;
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}
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static void __init probe_bus_iseries(void)
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{
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HvLpIndexMap vlan_map;
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struct vio_dev *viodev;
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int i;
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/* there is only one of each of these */
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vio_register_device_iseries("viocons", 0);
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vio_register_device_iseries("vscsi", 0);
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vlan_map = HvLpConfig_getVirtualLanIndexMap();
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for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) {
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if ((vlan_map & (0x8000 >> i)) == 0)
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continue;
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viodev = vio_register_device_iseries("vlan", i);
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/* veth is special and has it own iommu_table */
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viodev->iommu_table = &veth_iommu_table;
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}
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for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++)
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vio_register_device_iseries("viodasd", i);
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for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++)
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vio_register_device_iseries("viocd", i);
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for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++)
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vio_register_device_iseries("viotape", i);
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}
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/**
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* vio_match_device_iseries: - Tell if a iSeries VIO device matches a
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* vio_device_id
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*/
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static int vio_match_device_iseries(const struct vio_device_id *id,
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const struct vio_dev *dev)
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{
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return strncmp(dev->type, id->type, strlen(id->type)) == 0;
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}
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static struct vio_bus_ops vio_bus_ops_iseries = {
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.match = vio_match_device_iseries,
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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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int err;
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err = vio_bus_init(&vio_bus_ops_iseries);
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if (err == 0) {
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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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probe_bus_iseries();
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}
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return err;
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}
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__initcall(vio_bus_init_iseries);
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