vme: remove ca91cx42 Universe-II support

This is one of four remaining drivers using the ancient
virt_to_bus() interface instead of the dma-mapping interface,
making it incompatible with most modern machines.

As nobody has cleaned this up, there is a high chance that this
driver has no actual users. The chip was introduced in 1997 and
only supports 32-bit legacy PCI. It was replaced by TSI148 in
2004, but that chip has since been discontinued, while a version
of the older Universe II remains in production after 25 years.

The vme_vmivme7805 board uses Universe-II, so this also gets
removed in the process, but PCI add-on cards based on TSI148
can still work in theory.

If there are users of the Universe-II driver after all, it is
of course possible to revert this patch and fix it to use the
dma-mapping interface like the tsi148 driver does.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20220606084109.4108188-2-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 1928 deletions

diff --git a/drivers/vme/bridges/vme_ca91cx42.c b/drivers/vme/bridges/vme_ca91cx42.c
deleted file mode 100644
index 439b0edeca08..000000000000
--- a/drivers/vme/bridges/vme_ca91cx42.c
+++ /dev/null
@@ -1,1928 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Support for the Tundra Universe I/II VME-PCI Bridge Chips
- *
- * Author: Martyn Welch <martyn.welch@ge.com>
- * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc.
- *
- * Based on work by Tom Armistead and Ajit Prem
- * Copyright 2004 Motorola Inc.
- *
- * Derived from ca91c042.c by Michael Wyrick
- */
-
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/poll.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/time.h>
-#include <linux/io.h>
-#include <linux/uaccess.h>
-#include <linux/vme.h>
-
-#include "../vme_bridge.h"
-#include "vme_ca91cx42.h"
-
-static int ca91cx42_probe(struct pci_dev *, const struct pci_device_id *);
-static void ca91cx42_remove(struct pci_dev *);
-
-/* Module parameters */
-static int geoid;
-
-static const char driver_name[] = "vme_ca91cx42";
-
-static const struct pci_device_id ca91cx42_ids[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_TUNDRA, PCI_DEVICE_ID_TUNDRA_CA91C142) },
-	{ },
-};
-
-MODULE_DEVICE_TABLE(pci, ca91cx42_ids);
-
-static struct pci_driver ca91cx42_driver = {
-	.name = driver_name,
-	.id_table = ca91cx42_ids,
-	.probe = ca91cx42_probe,
-	.remove = ca91cx42_remove,
-};
-
-static u32 ca91cx42_DMA_irqhandler(struct ca91cx42_driver *bridge)
-{
-	wake_up(&bridge->dma_queue);
-
-	return CA91CX42_LINT_DMA;
-}
-
-static u32 ca91cx42_LM_irqhandler(struct ca91cx42_driver *bridge, u32 stat)
-{
-	int i;
-	u32 serviced = 0;
-
-	for (i = 0; i < 4; i++) {
-		if (stat & CA91CX42_LINT_LM[i]) {
-			/* We only enable interrupts if the callback is set */
-			bridge->lm_callback[i](bridge->lm_data[i]);
-			serviced |= CA91CX42_LINT_LM[i];
-		}
-	}
-
-	return serviced;
-}
-
-/* XXX This needs to be split into 4 queues */
-static u32 ca91cx42_MB_irqhandler(struct ca91cx42_driver *bridge, int mbox_mask)
-{
-	wake_up(&bridge->mbox_queue);
-
-	return CA91CX42_LINT_MBOX;
-}
-
-static u32 ca91cx42_IACK_irqhandler(struct ca91cx42_driver *bridge)
-{
-	wake_up(&bridge->iack_queue);
-
-	return CA91CX42_LINT_SW_IACK;
-}
-
-static u32 ca91cx42_VERR_irqhandler(struct vme_bridge *ca91cx42_bridge)
-{
-	int val;
-	struct ca91cx42_driver *bridge;
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-	val = ioread32(bridge->base + DGCS);
-
-	if (!(val & 0x00000800)) {
-		dev_err(ca91cx42_bridge->parent, "ca91cx42_VERR_irqhandler DMA "
-			"Read Error DGCS=%08X\n", val);
-	}
-
-	return CA91CX42_LINT_VERR;
-}
-
-static u32 ca91cx42_LERR_irqhandler(struct vme_bridge *ca91cx42_bridge)
-{
-	int val;
-	struct ca91cx42_driver *bridge;
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-	val = ioread32(bridge->base + DGCS);
-
-	if (!(val & 0x00000800))
-		dev_err(ca91cx42_bridge->parent, "ca91cx42_LERR_irqhandler DMA "
-			"Read Error DGCS=%08X\n", val);
-
-	return CA91CX42_LINT_LERR;
-}
-
-
-static u32 ca91cx42_VIRQ_irqhandler(struct vme_bridge *ca91cx42_bridge,
-	int stat)
-{
-	int vec, i, serviced = 0;
-	struct ca91cx42_driver *bridge;
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-
-	for (i = 7; i > 0; i--) {
-		if (stat & (1 << i)) {
-			vec = ioread32(bridge->base +
-				CA91CX42_V_STATID[i]) & 0xff;
-
-			vme_irq_handler(ca91cx42_bridge, i, vec);
-
-			serviced |= (1 << i);
-		}
-	}
-
-	return serviced;
-}
-
-static irqreturn_t ca91cx42_irqhandler(int irq, void *ptr)
-{
-	u32 stat, enable, serviced = 0;
-	struct vme_bridge *ca91cx42_bridge;
-	struct ca91cx42_driver *bridge;
-
-	ca91cx42_bridge = ptr;
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-	enable = ioread32(bridge->base + LINT_EN);
-	stat = ioread32(bridge->base + LINT_STAT);
-
-	/* Only look at unmasked interrupts */
-	stat &= enable;
-
-	if (unlikely(!stat))
-		return IRQ_NONE;
-
-	if (stat & CA91CX42_LINT_DMA)
-		serviced |= ca91cx42_DMA_irqhandler(bridge);
-	if (stat & (CA91CX42_LINT_LM0 | CA91CX42_LINT_LM1 | CA91CX42_LINT_LM2 |
-			CA91CX42_LINT_LM3))
-		serviced |= ca91cx42_LM_irqhandler(bridge, stat);
-	if (stat & CA91CX42_LINT_MBOX)
-		serviced |= ca91cx42_MB_irqhandler(bridge, stat);
-	if (stat & CA91CX42_LINT_SW_IACK)
-		serviced |= ca91cx42_IACK_irqhandler(bridge);
-	if (stat & CA91CX42_LINT_VERR)
-		serviced |= ca91cx42_VERR_irqhandler(ca91cx42_bridge);
-	if (stat & CA91CX42_LINT_LERR)
-		serviced |= ca91cx42_LERR_irqhandler(ca91cx42_bridge);
-	if (stat & (CA91CX42_LINT_VIRQ1 | CA91CX42_LINT_VIRQ2 |
-			CA91CX42_LINT_VIRQ3 | CA91CX42_LINT_VIRQ4 |
-			CA91CX42_LINT_VIRQ5 | CA91CX42_LINT_VIRQ6 |
-			CA91CX42_LINT_VIRQ7))
-		serviced |= ca91cx42_VIRQ_irqhandler(ca91cx42_bridge, stat);
-
-	/* Clear serviced interrupts */
-	iowrite32(serviced, bridge->base + LINT_STAT);
-
-	return IRQ_HANDLED;
-}
-
-static int ca91cx42_irq_init(struct vme_bridge *ca91cx42_bridge)
-{
-	int result, tmp;
-	struct pci_dev *pdev;
-	struct ca91cx42_driver *bridge;
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-	/* Need pdev */
-	pdev = to_pci_dev(ca91cx42_bridge->parent);
-
-	/* Disable interrupts from PCI to VME */
-	iowrite32(0, bridge->base + VINT_EN);
-
-	/* Disable PCI interrupts */
-	iowrite32(0, bridge->base + LINT_EN);
-	/* Clear Any Pending PCI Interrupts */
-	iowrite32(0x00FFFFFF, bridge->base + LINT_STAT);
-
-	result = request_irq(pdev->irq, ca91cx42_irqhandler, IRQF_SHARED,
-			driver_name, ca91cx42_bridge);
-	if (result) {
-		dev_err(&pdev->dev, "Can't get assigned pci irq vector %02X\n",
-		       pdev->irq);
-		return result;
-	}
-
-	/* Ensure all interrupts are mapped to PCI Interrupt 0 */
-	iowrite32(0, bridge->base + LINT_MAP0);
-	iowrite32(0, bridge->base + LINT_MAP1);
-	iowrite32(0, bridge->base + LINT_MAP2);
-
-	/* Enable DMA, mailbox & LM Interrupts */
-	tmp = CA91CX42_LINT_MBOX3 | CA91CX42_LINT_MBOX2 | CA91CX42_LINT_MBOX1 |
-		CA91CX42_LINT_MBOX0 | CA91CX42_LINT_SW_IACK |
-		CA91CX42_LINT_VERR | CA91CX42_LINT_LERR | CA91CX42_LINT_DMA;
-
-	iowrite32(tmp, bridge->base + LINT_EN);
-
-	return 0;
-}
-
-static void ca91cx42_irq_exit(struct ca91cx42_driver *bridge,
-	struct pci_dev *pdev)
-{
-	struct vme_bridge *ca91cx42_bridge;
-
-	/* Disable interrupts from PCI to VME */
-	iowrite32(0, bridge->base + VINT_EN);
-
-	/* Disable PCI interrupts */
-	iowrite32(0, bridge->base + LINT_EN);
-	/* Clear Any Pending PCI Interrupts */
-	iowrite32(0x00FFFFFF, bridge->base + LINT_STAT);
-
-	ca91cx42_bridge = container_of((void *)bridge, struct vme_bridge,
-				       driver_priv);
-	free_irq(pdev->irq, ca91cx42_bridge);
-}
-
-static int ca91cx42_iack_received(struct ca91cx42_driver *bridge, int level)
-{
-	u32 tmp;
-
-	tmp = ioread32(bridge->base + LINT_STAT);
-
-	if (tmp & (1 << level))
-		return 0;
-	else
-		return 1;
-}
-
-/*
- * Set up an VME interrupt
- */
-static void ca91cx42_irq_set(struct vme_bridge *ca91cx42_bridge, int level,
-	int state, int sync)
-
-{
-	struct pci_dev *pdev;
-	u32 tmp;
-	struct ca91cx42_driver *bridge;
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-	/* Enable IRQ level */
-	tmp = ioread32(bridge->base + LINT_EN);
-
-	if (state == 0)
-		tmp &= ~CA91CX42_LINT_VIRQ[level];
-	else
-		tmp |= CA91CX42_LINT_VIRQ[level];
-
-	iowrite32(tmp, bridge->base + LINT_EN);
-
-	if ((state == 0) && (sync != 0)) {
-		pdev = to_pci_dev(ca91cx42_bridge->parent);
-
-		synchronize_irq(pdev->irq);
-	}
-}
-
-static int ca91cx42_irq_generate(struct vme_bridge *ca91cx42_bridge, int level,
-	int statid)
-{
-	u32 tmp;
-	struct ca91cx42_driver *bridge;
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-	/* Universe can only generate even vectors */
-	if (statid & 1)
-		return -EINVAL;
-
-	mutex_lock(&bridge->vme_int);
-
-	tmp = ioread32(bridge->base + VINT_EN);
-
-	/* Set Status/ID */
-	iowrite32(statid << 24, bridge->base + STATID);
-
-	/* Assert VMEbus IRQ */
-	tmp = tmp | (1 << (level + 24));
-	iowrite32(tmp, bridge->base + VINT_EN);
-
-	/* Wait for IACK */
-	wait_event_interruptible(bridge->iack_queue,
-				 ca91cx42_iack_received(bridge, level));
-
-	/* Return interrupt to low state */
-	tmp = ioread32(bridge->base + VINT_EN);
-	tmp = tmp & ~(1 << (level + 24));
-	iowrite32(tmp, bridge->base + VINT_EN);
-
-	mutex_unlock(&bridge->vme_int);
-
-	return 0;
-}
-
-static int ca91cx42_slave_set(struct vme_slave_resource *image, int enabled,
-	unsigned long long vme_base, unsigned long long size,
-	dma_addr_t pci_base, u32 aspace, u32 cycle)
-{
-	unsigned int i, addr = 0, granularity;
-	unsigned int temp_ctl = 0;
-	unsigned int vme_bound, pci_offset;
-	struct vme_bridge *ca91cx42_bridge;
-	struct ca91cx42_driver *bridge;
-
-	ca91cx42_bridge = image->parent;
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-	i = image->number;
-
-	switch (aspace) {
-	case VME_A16:
-		addr |= CA91CX42_VSI_CTL_VAS_A16;
-		break;
-	case VME_A24:
-		addr |= CA91CX42_VSI_CTL_VAS_A24;
-		break;
-	case VME_A32:
-		addr |= CA91CX42_VSI_CTL_VAS_A32;
-		break;
-	case VME_USER1:
-		addr |= CA91CX42_VSI_CTL_VAS_USER1;
-		break;
-	case VME_USER2:
-		addr |= CA91CX42_VSI_CTL_VAS_USER2;
-		break;
-	case VME_A64:
-	case VME_CRCSR:
-	case VME_USER3:
-	case VME_USER4:
-	default:
-		dev_err(ca91cx42_bridge->parent, "Invalid address space\n");
-		return -EINVAL;
-		break;
-	}
-
-	/*
-	 * Bound address is a valid address for the window, adjust
-	 * accordingly
-	 */
-	vme_bound = vme_base + size;
-	pci_offset = pci_base - vme_base;
-
-	if ((i == 0) || (i == 4))
-		granularity = 0x1000;
-	else
-		granularity = 0x10000;
-
-	if (vme_base & (granularity - 1)) {
-		dev_err(ca91cx42_bridge->parent, "Invalid VME base "
-			"alignment\n");
-		return -EINVAL;
-	}
-	if (vme_bound & (granularity - 1)) {
-		dev_err(ca91cx42_bridge->parent, "Invalid VME bound "
-			"alignment\n");
-		return -EINVAL;
-	}
-	if (pci_offset & (granularity - 1)) {
-		dev_err(ca91cx42_bridge->parent, "Invalid PCI Offset "
-			"alignment\n");
-		return -EINVAL;
-	}
-
-	/* Disable while we are mucking around */
-	temp_ctl = ioread32(bridge->base + CA91CX42_VSI_CTL[i]);
-	temp_ctl &= ~CA91CX42_VSI_CTL_EN;
-	iowrite32(temp_ctl, bridge->base + CA91CX42_VSI_CTL[i]);
-
-	/* Setup mapping */
-	iowrite32(vme_base, bridge->base + CA91CX42_VSI_BS[i]);
-	iowrite32(vme_bound, bridge->base + CA91CX42_VSI_BD[i]);
-	iowrite32(pci_offset, bridge->base + CA91CX42_VSI_TO[i]);
-
-	/* Setup address space */
-	temp_ctl &= ~CA91CX42_VSI_CTL_VAS_M;
-	temp_ctl |= addr;
-
-	/* Setup cycle types */
-	temp_ctl &= ~(CA91CX42_VSI_CTL_PGM_M | CA91CX42_VSI_CTL_SUPER_M);
-	if (cycle & VME_SUPER)
-		temp_ctl |= CA91CX42_VSI_CTL_SUPER_SUPR;
-	if (cycle & VME_USER)
-		temp_ctl |= CA91CX42_VSI_CTL_SUPER_NPRIV;
-	if (cycle & VME_PROG)
-		temp_ctl |= CA91CX42_VSI_CTL_PGM_PGM;
-	if (cycle & VME_DATA)
-		temp_ctl |= CA91CX42_VSI_CTL_PGM_DATA;
-
-	/* Write ctl reg without enable */
-	iowrite32(temp_ctl, bridge->base + CA91CX42_VSI_CTL[i]);
-
-	if (enabled)
-		temp_ctl |= CA91CX42_VSI_CTL_EN;
-
-	iowrite32(temp_ctl, bridge->base + CA91CX42_VSI_CTL[i]);
-
-	return 0;
-}
-
-static int ca91cx42_slave_get(struct vme_slave_resource *image, int *enabled,
-	unsigned long long *vme_base, unsigned long long *size,
-	dma_addr_t *pci_base, u32 *aspace, u32 *cycle)
-{
-	unsigned int i, granularity = 0, ctl = 0;
-	unsigned long long vme_bound, pci_offset;
-	struct ca91cx42_driver *bridge;
-
-	bridge = image->parent->driver_priv;
-
-	i = image->number;
-
-	if ((i == 0) || (i == 4))
-		granularity = 0x1000;
-	else
-		granularity = 0x10000;
-
-	/* Read Registers */
-	ctl = ioread32(bridge->base + CA91CX42_VSI_CTL[i]);
-
-	*vme_base = ioread32(bridge->base + CA91CX42_VSI_BS[i]);
-	vme_bound = ioread32(bridge->base + CA91CX42_VSI_BD[i]);
-	pci_offset = ioread32(bridge->base + CA91CX42_VSI_TO[i]);
-
-	*pci_base = (dma_addr_t)*vme_base + pci_offset;
-	*size = (unsigned long long)((vme_bound - *vme_base) + granularity);
-
-	*enabled = 0;
-	*aspace = 0;
-	*cycle = 0;
-
-	if (ctl & CA91CX42_VSI_CTL_EN)
-		*enabled = 1;
-
-	if ((ctl & CA91CX42_VSI_CTL_VAS_M) == CA91CX42_VSI_CTL_VAS_A16)
-		*aspace = VME_A16;
-	if ((ctl & CA91CX42_VSI_CTL_VAS_M) == CA91CX42_VSI_CTL_VAS_A24)
-		*aspace = VME_A24;
-	if ((ctl & CA91CX42_VSI_CTL_VAS_M) == CA91CX42_VSI_CTL_VAS_A32)
-		*aspace = VME_A32;
-	if ((ctl & CA91CX42_VSI_CTL_VAS_M) == CA91CX42_VSI_CTL_VAS_USER1)
-		*aspace = VME_USER1;
-	if ((ctl & CA91CX42_VSI_CTL_VAS_M) == CA91CX42_VSI_CTL_VAS_USER2)
-		*aspace = VME_USER2;
-
-	if (ctl & CA91CX42_VSI_CTL_SUPER_SUPR)
-		*cycle |= VME_SUPER;
-	if (ctl & CA91CX42_VSI_CTL_SUPER_NPRIV)
-		*cycle |= VME_USER;
-	if (ctl & CA91CX42_VSI_CTL_PGM_PGM)
-		*cycle |= VME_PROG;
-	if (ctl & CA91CX42_VSI_CTL_PGM_DATA)
-		*cycle |= VME_DATA;
-
-	return 0;
-}
-
-/*
- * Allocate and map PCI Resource
- */
-static int ca91cx42_alloc_resource(struct vme_master_resource *image,
-	unsigned long long size)
-{
-	unsigned long long existing_size;
-	int retval = 0;
-	struct pci_dev *pdev;
-	struct vme_bridge *ca91cx42_bridge;
-
-	ca91cx42_bridge = image->parent;
-
-	/* Find pci_dev container of dev */
-	if (!ca91cx42_bridge->parent) {
-		dev_err(ca91cx42_bridge->parent, "Dev entry NULL\n");
-		return -EINVAL;
-	}
-	pdev = to_pci_dev(ca91cx42_bridge->parent);
-
-	existing_size = (unsigned long long)(image->bus_resource.end -
-		image->bus_resource.start);
-
-	/* If the existing size is OK, return */
-	if (existing_size == (size - 1))
-		return 0;
-
-	if (existing_size != 0) {
-		iounmap(image->kern_base);
-		image->kern_base = NULL;
-		kfree(image->bus_resource.name);
-		release_resource(&image->bus_resource);
-		memset(&image->bus_resource, 0, sizeof(image->bus_resource));
-	}
-
-	if (!image->bus_resource.name) {
-		image->bus_resource.name = kmalloc(VMENAMSIZ+3, GFP_ATOMIC);
-		if (!image->bus_resource.name) {
-			retval = -ENOMEM;
-			goto err_name;
-		}
-	}
-
-	sprintf((char *)image->bus_resource.name, "%s.%d",
-		ca91cx42_bridge->name, image->number);
-
-	image->bus_resource.start = 0;
-	image->bus_resource.end = (unsigned long)size;
-	image->bus_resource.flags = IORESOURCE_MEM;
-
-	retval = pci_bus_alloc_resource(pdev->bus,
-		&image->bus_resource, size, 0x10000, PCIBIOS_MIN_MEM,
-		0, NULL, NULL);
-	if (retval) {
-		dev_err(ca91cx42_bridge->parent, "Failed to allocate mem "
-			"resource for window %d size 0x%lx start 0x%lx\n",
-			image->number, (unsigned long)size,
-			(unsigned long)image->bus_resource.start);
-		goto err_resource;
-	}
-
-	image->kern_base = ioremap(
-		image->bus_resource.start, size);
-	if (!image->kern_base) {
-		dev_err(ca91cx42_bridge->parent, "Failed to remap resource\n");
-		retval = -ENOMEM;
-		goto err_remap;
-	}
-
-	return 0;
-
-err_remap:
-	release_resource(&image->bus_resource);
-err_resource:
-	kfree(image->bus_resource.name);
-	memset(&image->bus_resource, 0, sizeof(image->bus_resource));
-err_name:
-	return retval;
-}
-
-/*
- * Free and unmap PCI Resource
- */
-static void ca91cx42_free_resource(struct vme_master_resource *image)
-{
-	iounmap(image->kern_base);
-	image->kern_base = NULL;
-	release_resource(&image->bus_resource);
-	kfree(image->bus_resource.name);
-	memset(&image->bus_resource, 0, sizeof(image->bus_resource));
-}
-
-
-static int ca91cx42_master_set(struct vme_master_resource *image, int enabled,
-	unsigned long long vme_base, unsigned long long size, u32 aspace,
-	u32 cycle, u32 dwidth)
-{
-	int retval = 0;
-	unsigned int i, granularity = 0;
-	unsigned int temp_ctl = 0;
-	unsigned long long pci_bound, vme_offset, pci_base;
-	struct vme_bridge *ca91cx42_bridge;
-	struct ca91cx42_driver *bridge;
-
-	ca91cx42_bridge = image->parent;
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-	i = image->number;
-
-	if ((i == 0) || (i == 4))
-		granularity = 0x1000;
-	else
-		granularity = 0x10000;
-
-	/* Verify input data */
-	if (vme_base & (granularity - 1)) {
-		dev_err(ca91cx42_bridge->parent, "Invalid VME Window "
-			"alignment\n");
-		retval = -EINVAL;
-		goto err_window;
-	}
-	if (size & (granularity - 1)) {
-		dev_err(ca91cx42_bridge->parent, "Invalid VME Window "
-			"alignment\n");
-		retval = -EINVAL;
-		goto err_window;
-	}
-
-	spin_lock(&image->lock);
-
-	/*
-	 * Let's allocate the resource here rather than further up the stack as
-	 * it avoids pushing loads of bus dependent stuff up the stack
-	 */
-	retval = ca91cx42_alloc_resource(image, size);
-	if (retval) {
-		spin_unlock(&image->lock);
-		dev_err(ca91cx42_bridge->parent, "Unable to allocate memory "
-			"for resource name\n");
-		retval = -ENOMEM;
-		goto err_res;
-	}
-
-	pci_base = (unsigned long long)image->bus_resource.start;
-
-	/*
-	 * Bound address is a valid address for the window, adjust
-	 * according to window granularity.
-	 */
-	pci_bound = pci_base + size;
-	vme_offset = vme_base - pci_base;
-
-	/* Disable while we are mucking around */
-	temp_ctl = ioread32(bridge->base + CA91CX42_LSI_CTL[i]);
-	temp_ctl &= ~CA91CX42_LSI_CTL_EN;
-	iowrite32(temp_ctl, bridge->base + CA91CX42_LSI_CTL[i]);
-
-	/* Setup cycle types */
-	temp_ctl &= ~CA91CX42_LSI_CTL_VCT_M;
-	if (cycle & VME_BLT)
-		temp_ctl |= CA91CX42_LSI_CTL_VCT_BLT;
-	if (cycle & VME_MBLT)
-		temp_ctl |= CA91CX42_LSI_CTL_VCT_MBLT;
-
-	/* Setup data width */
-	temp_ctl &= ~CA91CX42_LSI_CTL_VDW_M;
-	switch (dwidth) {
-	case VME_D8:
-		temp_ctl |= CA91CX42_LSI_CTL_VDW_D8;
-		break;
-	case VME_D16:
-		temp_ctl |= CA91CX42_LSI_CTL_VDW_D16;
-		break;
-	case VME_D32:
-		temp_ctl |= CA91CX42_LSI_CTL_VDW_D32;
-		break;
-	case VME_D64:
-		temp_ctl |= CA91CX42_LSI_CTL_VDW_D64;
-		break;
-	default:
-		spin_unlock(&image->lock);
-		dev_err(ca91cx42_bridge->parent, "Invalid data width\n");
-		retval = -EINVAL;
-		goto err_dwidth;
-		break;
-	}
-
-	/* Setup address space */
-	temp_ctl &= ~CA91CX42_LSI_CTL_VAS_M;
-	switch (aspace) {
-	case VME_A16:
-		temp_ctl |= CA91CX42_LSI_CTL_VAS_A16;
-		break;
-	case VME_A24:
-		temp_ctl |= CA91CX42_LSI_CTL_VAS_A24;
-		break;
-	case VME_A32:
-		temp_ctl |= CA91CX42_LSI_CTL_VAS_A32;
-		break;
-	case VME_CRCSR:
-		temp_ctl |= CA91CX42_LSI_CTL_VAS_CRCSR;
-		break;
-	case VME_USER1:
-		temp_ctl |= CA91CX42_LSI_CTL_VAS_USER1;
-		break;
-	case VME_USER2:
-		temp_ctl |= CA91CX42_LSI_CTL_VAS_USER2;
-		break;
-	case VME_A64:
-	case VME_USER3:
-	case VME_USER4:
-	default:
-		spin_unlock(&image->lock);
-		dev_err(ca91cx42_bridge->parent, "Invalid address space\n");
-		retval = -EINVAL;
-		goto err_aspace;
-		break;
-	}
-
-	temp_ctl &= ~(CA91CX42_LSI_CTL_PGM_M | CA91CX42_LSI_CTL_SUPER_M);
-	if (cycle & VME_SUPER)
-		temp_ctl |= CA91CX42_LSI_CTL_SUPER_SUPR;
-	if (cycle & VME_PROG)
-		temp_ctl |= CA91CX42_LSI_CTL_PGM_PGM;
-
-	/* Setup mapping */
-	iowrite32(pci_base, bridge->base + CA91CX42_LSI_BS[i]);
-	iowrite32(pci_bound, bridge->base + CA91CX42_LSI_BD[i]);
-	iowrite32(vme_offset, bridge->base + CA91CX42_LSI_TO[i]);
-
-	/* Write ctl reg without enable */
-	iowrite32(temp_ctl, bridge->base + CA91CX42_LSI_CTL[i]);
-
-	if (enabled)
-		temp_ctl |= CA91CX42_LSI_CTL_EN;
-
-	iowrite32(temp_ctl, bridge->base + CA91CX42_LSI_CTL[i]);
-
-	spin_unlock(&image->lock);
-	return 0;
-
-err_aspace:
-err_dwidth:
-	ca91cx42_free_resource(image);
-err_res:
-err_window:
-	return retval;
-}
-
-static int __ca91cx42_master_get(struct vme_master_resource *image,
-	int *enabled, unsigned long long *vme_base, unsigned long long *size,
-	u32 *aspace, u32 *cycle, u32 *dwidth)
-{
-	unsigned int i, ctl;
-	unsigned long long pci_base, pci_bound, vme_offset;
-	struct ca91cx42_driver *bridge;
-
-	bridge = image->parent->driver_priv;
-
-	i = image->number;
-
-	ctl = ioread32(bridge->base + CA91CX42_LSI_CTL[i]);
-
-	pci_base = ioread32(bridge->base + CA91CX42_LSI_BS[i]);
-	vme_offset = ioread32(bridge->base + CA91CX42_LSI_TO[i]);
-	pci_bound = ioread32(bridge->base + CA91CX42_LSI_BD[i]);
-
-	*vme_base = pci_base + vme_offset;
-	*size = (unsigned long long)(pci_bound - pci_base);
-
-	*enabled = 0;
-	*aspace = 0;
-	*cycle = 0;
-	*dwidth = 0;
-
-	if (ctl & CA91CX42_LSI_CTL_EN)
-		*enabled = 1;
-
-	/* Setup address space */
-	switch (ctl & CA91CX42_LSI_CTL_VAS_M) {
-	case CA91CX42_LSI_CTL_VAS_A16:
-		*aspace = VME_A16;
-		break;
-	case CA91CX42_LSI_CTL_VAS_A24:
-		*aspace = VME_A24;
-		break;
-	case CA91CX42_LSI_CTL_VAS_A32:
-		*aspace = VME_A32;
-		break;
-	case CA91CX42_LSI_CTL_VAS_CRCSR:
-		*aspace = VME_CRCSR;
-		break;
-	case CA91CX42_LSI_CTL_VAS_USER1:
-		*aspace = VME_USER1;
-		break;
-	case CA91CX42_LSI_CTL_VAS_USER2:
-		*aspace = VME_USER2;
-		break;
-	}
-
-	/* XXX Not sure howto check for MBLT */
-	/* Setup cycle types */
-	if (ctl & CA91CX42_LSI_CTL_VCT_BLT)
-		*cycle |= VME_BLT;
-	else
-		*cycle |= VME_SCT;
-
-	if (ctl & CA91CX42_LSI_CTL_SUPER_SUPR)
-		*cycle |= VME_SUPER;
-	else
-		*cycle |= VME_USER;
-
-	if (ctl & CA91CX42_LSI_CTL_PGM_PGM)
-		*cycle = VME_PROG;
-	else
-		*cycle = VME_DATA;
-
-	/* Setup data width */
-	switch (ctl & CA91CX42_LSI_CTL_VDW_M) {
-	case CA91CX42_LSI_CTL_VDW_D8:
-		*dwidth = VME_D8;
-		break;
-	case CA91CX42_LSI_CTL_VDW_D16:
-		*dwidth = VME_D16;
-		break;
-	case CA91CX42_LSI_CTL_VDW_D32:
-		*dwidth = VME_D32;
-		break;
-	case CA91CX42_LSI_CTL_VDW_D64:
-		*dwidth = VME_D64;
-		break;
-	}
-
-	return 0;
-}
-
-static int ca91cx42_master_get(struct vme_master_resource *image, int *enabled,
-	unsigned long long *vme_base, unsigned long long *size, u32 *aspace,
-	u32 *cycle, u32 *dwidth)
-{
-	int retval;
-
-	spin_lock(&image->lock);
-
-	retval = __ca91cx42_master_get(image, enabled, vme_base, size, aspace,
-		cycle, dwidth);
-
-	spin_unlock(&image->lock);
-
-	return retval;
-}
-
-static ssize_t ca91cx42_master_read(struct vme_master_resource *image,
-	void *buf, size_t count, loff_t offset)
-{
-	ssize_t retval;
-	void __iomem *addr = image->kern_base + offset;
-	unsigned int done = 0;
-	unsigned int count32;
-
-	if (count == 0)
-		return 0;
-
-	spin_lock(&image->lock);
-
-	/* The following code handles VME address alignment. We cannot use
-	 * memcpy_xxx here because it may cut data transfers in to 8-bit
-	 * cycles when D16 or D32 cycles are required on the VME bus.
-	 * On the other hand, the bridge itself assures that the maximum data
-	 * cycle configured for the transfer is used and splits it
-	 * automatically for non-aligned addresses, so we don't want the
-	 * overhead of needlessly forcing small transfers for the entire cycle.
-	 */
-	if ((uintptr_t)addr & 0x1) {
-		*(u8 *)buf = ioread8(addr);
-		done += 1;
-		if (done == count)
-			goto out;
-	}
-	if ((uintptr_t)(addr + done) & 0x2) {
-		if ((count - done) < 2) {
-			*(u8 *)(buf + done) = ioread8(addr + done);
-			done += 1;
-			goto out;
-		} else {
-			*(u16 *)(buf + done) = ioread16(addr + done);
-			done += 2;
-		}
-	}
-
-	count32 = (count - done) & ~0x3;
-	while (done < count32) {
-		*(u32 *)(buf + done) = ioread32(addr + done);
-		done += 4;
-	}
-
-	if ((count - done) & 0x2) {
-		*(u16 *)(buf + done) = ioread16(addr + done);
-		done += 2;
-	}
-	if ((count - done) & 0x1) {
-		*(u8 *)(buf + done) = ioread8(addr + done);
-		done += 1;
-	}
-out:
-	retval = count;
-	spin_unlock(&image->lock);
-
-	return retval;
-}
-
-static ssize_t ca91cx42_master_write(struct vme_master_resource *image,
-	void *buf, size_t count, loff_t offset)
-{
-	ssize_t retval;
-	void __iomem *addr = image->kern_base + offset;
-	unsigned int done = 0;
-	unsigned int count32;
-
-	if (count == 0)
-		return 0;
-
-	spin_lock(&image->lock);
-
-	/* Here we apply for the same strategy we do in master_read
-	 * function in order to assure the correct cycles.
-	 */
-	if ((uintptr_t)addr & 0x1) {
-		iowrite8(*(u8 *)buf, addr);
-		done += 1;
-		if (done == count)
-			goto out;
-	}
-	if ((uintptr_t)(addr + done) & 0x2) {
-		if ((count - done) < 2) {
-			iowrite8(*(u8 *)(buf + done), addr + done);
-			done += 1;
-			goto out;
-		} else {
-			iowrite16(*(u16 *)(buf + done), addr + done);
-			done += 2;
-		}
-	}
-
-	count32 = (count - done) & ~0x3;
-	while (done < count32) {
-		iowrite32(*(u32 *)(buf + done), addr + done);
-		done += 4;
-	}
-
-	if ((count - done) & 0x2) {
-		iowrite16(*(u16 *)(buf + done), addr + done);
-		done += 2;
-	}
-	if ((count - done) & 0x1) {
-		iowrite8(*(u8 *)(buf + done), addr + done);
-		done += 1;
-	}
-out:
-	retval = count;
-
-	spin_unlock(&image->lock);
-
-	return retval;
-}
-
-static unsigned int ca91cx42_master_rmw(struct vme_master_resource *image,
-	unsigned int mask, unsigned int compare, unsigned int swap,
-	loff_t offset)
-{
-	u32 result;
-	uintptr_t pci_addr;
-	struct ca91cx42_driver *bridge;
-	struct device *dev;
-
-	bridge = image->parent->driver_priv;
-	dev = image->parent->parent;
-
-	/* Find the PCI address that maps to the desired VME address */
-
-	/* Locking as we can only do one of these at a time */
-	mutex_lock(&bridge->vme_rmw);
-
-	/* Lock image */
-	spin_lock(&image->lock);
-
-	pci_addr = (uintptr_t)image->kern_base + offset;
-
-	/* Address must be 4-byte aligned */
-	if (pci_addr & 0x3) {
-		dev_err(dev, "RMW Address not 4-byte aligned\n");
-		result = -EINVAL;
-		goto out;
-	}
-
-	/* Ensure RMW Disabled whilst configuring */
-	iowrite32(0, bridge->base + SCYC_CTL);
-
-	/* Configure registers */
-	iowrite32(mask, bridge->base + SCYC_EN);
-	iowrite32(compare, bridge->base + SCYC_CMP);
-	iowrite32(swap, bridge->base + SCYC_SWP);
-	iowrite32(pci_addr, bridge->base + SCYC_ADDR);
-
-	/* Enable RMW */
-	iowrite32(CA91CX42_SCYC_CTL_CYC_RMW, bridge->base + SCYC_CTL);
-
-	/* Kick process off with a read to the required address. */
-	result = ioread32(image->kern_base + offset);
-
-	/* Disable RMW */
-	iowrite32(0, bridge->base + SCYC_CTL);
-
-out:
-	spin_unlock(&image->lock);
-
-	mutex_unlock(&bridge->vme_rmw);
-
-	return result;
-}
-
-static int ca91cx42_dma_list_add(struct vme_dma_list *list,
-	struct vme_dma_attr *src, struct vme_dma_attr *dest, size_t count)
-{
-	struct ca91cx42_dma_entry *entry, *prev;
-	struct vme_dma_pci *pci_attr;
-	struct vme_dma_vme *vme_attr;
-	dma_addr_t desc_ptr;
-	int retval = 0;
-	struct device *dev;
-
-	dev = list->parent->parent->parent;
-
-	/* XXX descriptor must be aligned on 64-bit boundaries */
-	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
-	if (!entry) {
-		retval = -ENOMEM;
-		goto err_mem;
-	}
-
-	/* Test descriptor alignment */
-	if ((unsigned long)&entry->descriptor & CA91CX42_DCPP_M) {
-		dev_err(dev, "Descriptor not aligned to 16 byte boundary as "
-			"required: %p\n", &entry->descriptor);
-		retval = -EINVAL;
-		goto err_align;
-	}
-
-	memset(&entry->descriptor, 0, sizeof(entry->descriptor));
-
-	if (dest->type == VME_DMA_VME) {
-		entry->descriptor.dctl |= CA91CX42_DCTL_L2V;
-		vme_attr = dest->private;
-		pci_attr = src->private;
-	} else {
-		vme_attr = src->private;
-		pci_attr = dest->private;
-	}
-
-	/* Check we can do fulfill required attributes */
-	if ((vme_attr->aspace & ~(VME_A16 | VME_A24 | VME_A32 | VME_USER1 |
-		VME_USER2)) != 0) {
-
-		dev_err(dev, "Unsupported cycle type\n");
-		retval = -EINVAL;
-		goto err_aspace;
-	}
-
-	if ((vme_attr->cycle & ~(VME_SCT | VME_BLT | VME_SUPER | VME_USER |
-		VME_PROG | VME_DATA)) != 0) {
-
-		dev_err(dev, "Unsupported cycle type\n");
-		retval = -EINVAL;
-		goto err_cycle;
-	}
-
-	/* Check to see if we can fulfill source and destination */
-	if (!(((src->type == VME_DMA_PCI) && (dest->type == VME_DMA_VME)) ||
-		((src->type == VME_DMA_VME) && (dest->type == VME_DMA_PCI)))) {
-
-		dev_err(dev, "Cannot perform transfer with this "
-			"source-destination combination\n");
-		retval = -EINVAL;
-		goto err_direct;
-	}
-
-	/* Setup cycle types */
-	if (vme_attr->cycle & VME_BLT)
-		entry->descriptor.dctl |= CA91CX42_DCTL_VCT_BLT;
-
-	/* Setup data width */
-	switch (vme_attr->dwidth) {
-	case VME_D8:
-		entry->descriptor.dctl |= CA91CX42_DCTL_VDW_D8;
-		break;
-	case VME_D16:
-		entry->descriptor.dctl |= CA91CX42_DCTL_VDW_D16;
-		break;
-	case VME_D32:
-		entry->descriptor.dctl |= CA91CX42_DCTL_VDW_D32;
-		break;
-	case VME_D64:
-		entry->descriptor.dctl |= CA91CX42_DCTL_VDW_D64;
-		break;
-	default:
-		dev_err(dev, "Invalid data width\n");
-		return -EINVAL;
-	}
-
-	/* Setup address space */
-	switch (vme_attr->aspace) {
-	case VME_A16:
-		entry->descriptor.dctl |= CA91CX42_DCTL_VAS_A16;
-		break;
-	case VME_A24:
-		entry->descriptor.dctl |= CA91CX42_DCTL_VAS_A24;
-		break;
-	case VME_A32:
-		entry->descriptor.dctl |= CA91CX42_DCTL_VAS_A32;
-		break;
-	case VME_USER1:
-		entry->descriptor.dctl |= CA91CX42_DCTL_VAS_USER1;
-		break;
-	case VME_USER2:
-		entry->descriptor.dctl |= CA91CX42_DCTL_VAS_USER2;
-		break;
-	default:
-		dev_err(dev, "Invalid address space\n");
-		return -EINVAL;
-		break;
-	}
-
-	if (vme_attr->cycle & VME_SUPER)
-		entry->descriptor.dctl |= CA91CX42_DCTL_SUPER_SUPR;
-	if (vme_attr->cycle & VME_PROG)
-		entry->descriptor.dctl |= CA91CX42_DCTL_PGM_PGM;
-
-	entry->descriptor.dtbc = count;
-	entry->descriptor.dla = pci_attr->address;
-	entry->descriptor.dva = vme_attr->address;
-	entry->descriptor.dcpp = CA91CX42_DCPP_NULL;
-
-	/* Add to list */
-	list_add_tail(&entry->list, &list->entries);
-
-	/* Fill out previous descriptors "Next Address" */
-	if (entry->list.prev != &list->entries) {
-		prev = list_entry(entry->list.prev, struct ca91cx42_dma_entry,
-			list);
-		/* We need the bus address for the pointer */
-		desc_ptr = virt_to_bus(&entry->descriptor);
-		prev->descriptor.dcpp = desc_ptr & ~CA91CX42_DCPP_M;
-	}
-
-	return 0;
-
-err_cycle:
-err_aspace:
-err_direct:
-err_align:
-	kfree(entry);
-err_mem:
-	return retval;
-}
-
-static int ca91cx42_dma_busy(struct vme_bridge *ca91cx42_bridge)
-{
-	u32 tmp;
-	struct ca91cx42_driver *bridge;
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-	tmp = ioread32(bridge->base + DGCS);
-
-	if (tmp & CA91CX42_DGCS_ACT)
-		return 0;
-	else
-		return 1;
-}
-
-static int ca91cx42_dma_list_exec(struct vme_dma_list *list)
-{
-	struct vme_dma_resource *ctrlr;
-	struct ca91cx42_dma_entry *entry;
-	int retval;
-	dma_addr_t bus_addr;
-	u32 val;
-	struct device *dev;
-	struct ca91cx42_driver *bridge;
-
-	ctrlr = list->parent;
-
-	bridge = ctrlr->parent->driver_priv;
-	dev = ctrlr->parent->parent;
-
-	mutex_lock(&ctrlr->mtx);
-
-	if (!(list_empty(&ctrlr->running))) {
-		/*
-		 * XXX We have an active DMA transfer and currently haven't
-		 *     sorted out the mechanism for "pending" DMA transfers.
-		 *     Return busy.
-		 */
-		/* Need to add to pending here */
-		mutex_unlock(&ctrlr->mtx);
-		return -EBUSY;
-	} else {
-		list_add(&list->list, &ctrlr->running);
-	}
-
-	/* Get first bus address and write into registers */
-	entry = list_first_entry(&list->entries, struct ca91cx42_dma_entry,
-		list);
-
-	bus_addr = virt_to_bus(&entry->descriptor);
-
-	mutex_unlock(&ctrlr->mtx);
-
-	iowrite32(0, bridge->base + DTBC);
-	iowrite32(bus_addr & ~CA91CX42_DCPP_M, bridge->base + DCPP);
-
-	/* Start the operation */
-	val = ioread32(bridge->base + DGCS);
-
-	/* XXX Could set VMEbus On and Off Counters here */
-	val &= (CA91CX42_DGCS_VON_M | CA91CX42_DGCS_VOFF_M);
-
-	val |= (CA91CX42_DGCS_CHAIN | CA91CX42_DGCS_STOP | CA91CX42_DGCS_HALT |
-		CA91CX42_DGCS_DONE | CA91CX42_DGCS_LERR | CA91CX42_DGCS_VERR |
-		CA91CX42_DGCS_PERR);
-
-	iowrite32(val, bridge->base + DGCS);
-
-	val |= CA91CX42_DGCS_GO;
-
-	iowrite32(val, bridge->base + DGCS);
-
-	retval = wait_event_interruptible(bridge->dma_queue,
-					  ca91cx42_dma_busy(ctrlr->parent));
-
-	if (retval) {
-		val = ioread32(bridge->base + DGCS);
-		iowrite32(val | CA91CX42_DGCS_STOP_REQ, bridge->base + DGCS);
-		/* Wait for the operation to abort */
-		wait_event(bridge->dma_queue,
-			   ca91cx42_dma_busy(ctrlr->parent));
-		retval = -EINTR;
-		goto exit;
-	}
-
-	/*
-	 * Read status register, this register is valid until we kick off a
-	 * new transfer.
-	 */
-	val = ioread32(bridge->base + DGCS);
-
-	if (val & (CA91CX42_DGCS_LERR | CA91CX42_DGCS_VERR |
-		CA91CX42_DGCS_PERR)) {
-
-		dev_err(dev, "ca91c042: DMA Error. DGCS=%08X\n", val);
-		val = ioread32(bridge->base + DCTL);
-		retval = -EIO;
-	}
-
-exit:
-	/* Remove list from running list */
-	mutex_lock(&ctrlr->mtx);
-	list_del(&list->list);
-	mutex_unlock(&ctrlr->mtx);
-
-	return retval;
-
-}
-
-static int ca91cx42_dma_list_empty(struct vme_dma_list *list)
-{
-	struct list_head *pos, *temp;
-	struct ca91cx42_dma_entry *entry;
-
-	/* detach and free each entry */
-	list_for_each_safe(pos, temp, &list->entries) {
-		list_del(pos);
-		entry = list_entry(pos, struct ca91cx42_dma_entry, list);
-		kfree(entry);
-	}
-
-	return 0;
-}
-
-/*
- * All 4 location monitors reside at the same base - this is therefore a
- * system wide configuration.
- *
- * This does not enable the LM monitor - that should be done when the first
- * callback is attached and disabled when the last callback is removed.
- */
-static int ca91cx42_lm_set(struct vme_lm_resource *lm,
-	unsigned long long lm_base, u32 aspace, u32 cycle)
-{
-	u32 temp_base, lm_ctl = 0;
-	int i;
-	struct ca91cx42_driver *bridge;
-	struct device *dev;
-
-	bridge = lm->parent->driver_priv;
-	dev = lm->parent->parent;
-
-	/* Check the alignment of the location monitor */
-	temp_base = (u32)lm_base;
-	if (temp_base & 0xffff) {
-		dev_err(dev, "Location monitor must be aligned to 64KB "
-			"boundary");
-		return -EINVAL;
-	}
-
-	mutex_lock(&lm->mtx);
-
-	/* If we already have a callback attached, we can't move it! */
-	for (i = 0; i < lm->monitors; i++) {
-		if (bridge->lm_callback[i]) {
-			mutex_unlock(&lm->mtx);
-			dev_err(dev, "Location monitor callback attached, "
-				"can't reset\n");
-			return -EBUSY;
-		}
-	}
-
-	switch (aspace) {
-	case VME_A16:
-		lm_ctl |= CA91CX42_LM_CTL_AS_A16;
-		break;
-	case VME_A24:
-		lm_ctl |= CA91CX42_LM_CTL_AS_A24;
-		break;
-	case VME_A32:
-		lm_ctl |= CA91CX42_LM_CTL_AS_A32;
-		break;
-	default:
-		mutex_unlock(&lm->mtx);
-		dev_err(dev, "Invalid address space\n");
-		return -EINVAL;
-		break;
-	}
-
-	if (cycle & VME_SUPER)
-		lm_ctl |= CA91CX42_LM_CTL_SUPR;
-	if (cycle & VME_USER)
-		lm_ctl |= CA91CX42_LM_CTL_NPRIV;
-	if (cycle & VME_PROG)
-		lm_ctl |= CA91CX42_LM_CTL_PGM;
-	if (cycle & VME_DATA)
-		lm_ctl |= CA91CX42_LM_CTL_DATA;
-
-	iowrite32(lm_base, bridge->base + LM_BS);
-	iowrite32(lm_ctl, bridge->base + LM_CTL);
-
-	mutex_unlock(&lm->mtx);
-
-	return 0;
-}
-
-/* Get configuration of the callback monitor and return whether it is enabled
- * or disabled.
- */
-static int ca91cx42_lm_get(struct vme_lm_resource *lm,
-	unsigned long long *lm_base, u32 *aspace, u32 *cycle)
-{
-	u32 lm_ctl, enabled = 0;
-	struct ca91cx42_driver *bridge;
-
-	bridge = lm->parent->driver_priv;
-
-	mutex_lock(&lm->mtx);
-
-	*lm_base = (unsigned long long)ioread32(bridge->base + LM_BS);
-	lm_ctl = ioread32(bridge->base + LM_CTL);
-
-	if (lm_ctl & CA91CX42_LM_CTL_EN)
-		enabled = 1;
-
-	if ((lm_ctl & CA91CX42_LM_CTL_AS_M) == CA91CX42_LM_CTL_AS_A16)
-		*aspace = VME_A16;
-	if ((lm_ctl & CA91CX42_LM_CTL_AS_M) == CA91CX42_LM_CTL_AS_A24)
-		*aspace = VME_A24;
-	if ((lm_ctl & CA91CX42_LM_CTL_AS_M) == CA91CX42_LM_CTL_AS_A32)
-		*aspace = VME_A32;
-
-	*cycle = 0;
-	if (lm_ctl & CA91CX42_LM_CTL_SUPR)
-		*cycle |= VME_SUPER;
-	if (lm_ctl & CA91CX42_LM_CTL_NPRIV)
-		*cycle |= VME_USER;
-	if (lm_ctl & CA91CX42_LM_CTL_PGM)
-		*cycle |= VME_PROG;
-	if (lm_ctl & CA91CX42_LM_CTL_DATA)
-		*cycle |= VME_DATA;
-
-	mutex_unlock(&lm->mtx);
-
-	return enabled;
-}
-
-/*
- * Attach a callback to a specific location monitor.
- *
- * Callback will be passed the monitor triggered.
- */
-static int ca91cx42_lm_attach(struct vme_lm_resource *lm, int monitor,
-	void (*callback)(void *), void *data)
-{
-	u32 lm_ctl, tmp;
-	struct ca91cx42_driver *bridge;
-	struct device *dev;
-
-	bridge = lm->parent->driver_priv;
-	dev = lm->parent->parent;
-
-	mutex_lock(&lm->mtx);
-
-	/* Ensure that the location monitor is configured - need PGM or DATA */
-	lm_ctl = ioread32(bridge->base + LM_CTL);
-	if ((lm_ctl & (CA91CX42_LM_CTL_PGM | CA91CX42_LM_CTL_DATA)) == 0) {
-		mutex_unlock(&lm->mtx);
-		dev_err(dev, "Location monitor not properly configured\n");
-		return -EINVAL;
-	}
-
-	/* Check that a callback isn't already attached */
-	if (bridge->lm_callback[monitor]) {
-		mutex_unlock(&lm->mtx);
-		dev_err(dev, "Existing callback attached\n");
-		return -EBUSY;
-	}
-
-	/* Attach callback */
-	bridge->lm_callback[monitor] = callback;
-	bridge->lm_data[monitor] = data;
-
-	/* Enable Location Monitor interrupt */
-	tmp = ioread32(bridge->base + LINT_EN);
-	tmp |= CA91CX42_LINT_LM[monitor];
-	iowrite32(tmp, bridge->base + LINT_EN);
-
-	/* Ensure that global Location Monitor Enable set */
-	if ((lm_ctl & CA91CX42_LM_CTL_EN) == 0) {
-		lm_ctl |= CA91CX42_LM_CTL_EN;
-		iowrite32(lm_ctl, bridge->base + LM_CTL);
-	}
-
-	mutex_unlock(&lm->mtx);
-
-	return 0;
-}
-
-/*
- * Detach a callback function forn a specific location monitor.
- */
-static int ca91cx42_lm_detach(struct vme_lm_resource *lm, int monitor)
-{
-	u32 tmp;
-	struct ca91cx42_driver *bridge;
-
-	bridge = lm->parent->driver_priv;
-
-	mutex_lock(&lm->mtx);
-
-	/* Disable Location Monitor and ensure previous interrupts are clear */
-	tmp = ioread32(bridge->base + LINT_EN);
-	tmp &= ~CA91CX42_LINT_LM[monitor];
-	iowrite32(tmp, bridge->base + LINT_EN);
-
-	iowrite32(CA91CX42_LINT_LM[monitor],
-		 bridge->base + LINT_STAT);
-
-	/* Detach callback */
-	bridge->lm_callback[monitor] = NULL;
-	bridge->lm_data[monitor] = NULL;
-
-	/* If all location monitors disabled, disable global Location Monitor */
-	if ((tmp & (CA91CX42_LINT_LM0 | CA91CX42_LINT_LM1 | CA91CX42_LINT_LM2 |
-			CA91CX42_LINT_LM3)) == 0) {
-		tmp = ioread32(bridge->base + LM_CTL);
-		tmp &= ~CA91CX42_LM_CTL_EN;
-		iowrite32(tmp, bridge->base + LM_CTL);
-	}
-
-	mutex_unlock(&lm->mtx);
-
-	return 0;
-}
-
-static int ca91cx42_slot_get(struct vme_bridge *ca91cx42_bridge)
-{
-	u32 slot = 0;
-	struct ca91cx42_driver *bridge;
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-	if (!geoid) {
-		slot = ioread32(bridge->base + VCSR_BS);
-		slot = ((slot & CA91CX42_VCSR_BS_SLOT_M) >> 27);
-	} else
-		slot = geoid;
-
-	return (int)slot;
-
-}
-
-static void *ca91cx42_alloc_consistent(struct device *parent, size_t size,
-	dma_addr_t *dma)
-{
-	struct pci_dev *pdev;
-
-	/* Find pci_dev container of dev */
-	pdev = to_pci_dev(parent);
-
-	return dma_alloc_coherent(&pdev->dev, size, dma, GFP_KERNEL);
-}
-
-static void ca91cx42_free_consistent(struct device *parent, size_t size,
-	void *vaddr, dma_addr_t dma)
-{
-	struct pci_dev *pdev;
-
-	/* Find pci_dev container of dev */
-	pdev = to_pci_dev(parent);
-
-	dma_free_coherent(&pdev->dev, size, vaddr, dma);
-}
-
-/*
- * Configure CR/CSR space
- *
- * Access to the CR/CSR can be configured at power-up. The location of the
- * CR/CSR registers in the CR/CSR address space is determined by the boards
- * Auto-ID or Geographic address. This function ensures that the window is
- * enabled at an offset consistent with the boards geopgraphic address.
- */
-static int ca91cx42_crcsr_init(struct vme_bridge *ca91cx42_bridge,
-	struct pci_dev *pdev)
-{
-	unsigned int crcsr_addr;
-	int tmp, slot;
-	struct ca91cx42_driver *bridge;
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-	slot = ca91cx42_slot_get(ca91cx42_bridge);
-
-	/* Write CSR Base Address if slot ID is supplied as a module param */
-	if (geoid)
-		iowrite32(geoid << 27, bridge->base + VCSR_BS);
-
-	dev_info(&pdev->dev, "CR/CSR Offset: %d\n", slot);
-	if (slot == 0) {
-		dev_err(&pdev->dev, "Slot number is unset, not configuring "
-			"CR/CSR space\n");
-		return -EINVAL;
-	}
-
-	/* Allocate mem for CR/CSR image */
-	bridge->crcsr_kernel = dma_alloc_coherent(&pdev->dev,
-						  VME_CRCSR_BUF_SIZE,
-						  &bridge->crcsr_bus, GFP_KERNEL);
-	if (!bridge->crcsr_kernel) {
-		dev_err(&pdev->dev, "Failed to allocate memory for CR/CSR "
-			"image\n");
-		return -ENOMEM;
-	}
-
-	crcsr_addr = slot * (512 * 1024);
-	iowrite32(bridge->crcsr_bus - crcsr_addr, bridge->base + VCSR_TO);
-
-	tmp = ioread32(bridge->base + VCSR_CTL);
-	tmp |= CA91CX42_VCSR_CTL_EN;
-	iowrite32(tmp, bridge->base + VCSR_CTL);
-
-	return 0;
-}
-
-static void ca91cx42_crcsr_exit(struct vme_bridge *ca91cx42_bridge,
-	struct pci_dev *pdev)
-{
-	u32 tmp;
-	struct ca91cx42_driver *bridge;
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-	/* Turn off CR/CSR space */
-	tmp = ioread32(bridge->base + VCSR_CTL);
-	tmp &= ~CA91CX42_VCSR_CTL_EN;
-	iowrite32(tmp, bridge->base + VCSR_CTL);
-
-	/* Free image */
-	iowrite32(0, bridge->base + VCSR_TO);
-
-	dma_free_coherent(&pdev->dev, VME_CRCSR_BUF_SIZE,
-			  bridge->crcsr_kernel, bridge->crcsr_bus);
-}
-
-static int ca91cx42_probe(struct pci_dev *pdev, const struct pci_device_id *id)
-{
-	int retval, i;
-	u32 data;
-	struct list_head *pos = NULL, *n;
-	struct vme_bridge *ca91cx42_bridge;
-	struct ca91cx42_driver *ca91cx42_device;
-	struct vme_master_resource *master_image;
-	struct vme_slave_resource *slave_image;
-	struct vme_dma_resource *dma_ctrlr;
-	struct vme_lm_resource *lm;
-
-	/* We want to support more than one of each bridge so we need to
-	 * dynamically allocate the bridge structure
-	 */
-	ca91cx42_bridge = kzalloc(sizeof(*ca91cx42_bridge), GFP_KERNEL);
-	if (!ca91cx42_bridge) {
-		retval = -ENOMEM;
-		goto err_struct;
-	}
-	vme_init_bridge(ca91cx42_bridge);
-
-	ca91cx42_device = kzalloc(sizeof(*ca91cx42_device), GFP_KERNEL);
-	if (!ca91cx42_device) {
-		retval = -ENOMEM;
-		goto err_driver;
-	}
-
-	ca91cx42_bridge->driver_priv = ca91cx42_device;
-
-	/* Enable the device */
-	retval = pci_enable_device(pdev);
-	if (retval) {
-		dev_err(&pdev->dev, "Unable to enable device\n");
-		goto err_enable;
-	}
-
-	/* Map Registers */
-	retval = pci_request_regions(pdev, driver_name);
-	if (retval) {
-		dev_err(&pdev->dev, "Unable to reserve resources\n");
-		goto err_resource;
-	}
-
-	/* map registers in BAR 0 */
-	ca91cx42_device->base = ioremap(pci_resource_start(pdev, 0),
-		4096);
-	if (!ca91cx42_device->base) {
-		dev_err(&pdev->dev, "Unable to remap CRG region\n");
-		retval = -EIO;
-		goto err_remap;
-	}
-
-	/* Check to see if the mapping worked out */
-	data = ioread32(ca91cx42_device->base + CA91CX42_PCI_ID) & 0x0000FFFF;
-	if (data != PCI_VENDOR_ID_TUNDRA) {
-		dev_err(&pdev->dev, "PCI_ID check failed\n");
-		retval = -EIO;
-		goto err_test;
-	}
-
-	/* Initialize wait queues & mutual exclusion flags */
-	init_waitqueue_head(&ca91cx42_device->dma_queue);
-	init_waitqueue_head(&ca91cx42_device->iack_queue);
-	mutex_init(&ca91cx42_device->vme_int);
-	mutex_init(&ca91cx42_device->vme_rmw);
-
-	ca91cx42_bridge->parent = &pdev->dev;
-	strcpy(ca91cx42_bridge->name, driver_name);
-
-	/* Setup IRQ */
-	retval = ca91cx42_irq_init(ca91cx42_bridge);
-	if (retval != 0) {
-		dev_err(&pdev->dev, "Chip Initialization failed.\n");
-		goto err_irq;
-	}
-
-	/* Add master windows to list */
-	for (i = 0; i < CA91C142_MAX_MASTER; i++) {
-		master_image = kmalloc(sizeof(*master_image), GFP_KERNEL);
-		if (!master_image) {
-			retval = -ENOMEM;
-			goto err_master;
-		}
-		master_image->parent = ca91cx42_bridge;
-		spin_lock_init(&master_image->lock);
-		master_image->locked = 0;
-		master_image->number = i;
-		master_image->address_attr = VME_A16 | VME_A24 | VME_A32 |
-			VME_CRCSR | VME_USER1 | VME_USER2;
-		master_image->cycle_attr = VME_SCT | VME_BLT | VME_MBLT |
-			VME_SUPER | VME_USER | VME_PROG | VME_DATA;
-		master_image->width_attr = VME_D8 | VME_D16 | VME_D32 | VME_D64;
-		memset(&master_image->bus_resource, 0,
-		       sizeof(master_image->bus_resource));
-		master_image->kern_base  = NULL;
-		list_add_tail(&master_image->list,
-			&ca91cx42_bridge->master_resources);
-	}
-
-	/* Add slave windows to list */
-	for (i = 0; i < CA91C142_MAX_SLAVE; i++) {
-		slave_image = kmalloc(sizeof(*slave_image), GFP_KERNEL);
-		if (!slave_image) {
-			retval = -ENOMEM;
-			goto err_slave;
-		}
-		slave_image->parent = ca91cx42_bridge;
-		mutex_init(&slave_image->mtx);
-		slave_image->locked = 0;
-		slave_image->number = i;
-		slave_image->address_attr = VME_A24 | VME_A32 | VME_USER1 |
-			VME_USER2;
-
-		/* Only windows 0 and 4 support A16 */
-		if (i == 0 || i == 4)
-			slave_image->address_attr |= VME_A16;
-
-		slave_image->cycle_attr = VME_SCT | VME_BLT | VME_MBLT |
-			VME_SUPER | VME_USER | VME_PROG | VME_DATA;
-		list_add_tail(&slave_image->list,
-			&ca91cx42_bridge->slave_resources);
-	}
-
-	/* Add dma engines to list */
-	for (i = 0; i < CA91C142_MAX_DMA; i++) {
-		dma_ctrlr = kmalloc(sizeof(*dma_ctrlr), GFP_KERNEL);
-		if (!dma_ctrlr) {
-			retval = -ENOMEM;
-			goto err_dma;
-		}
-		dma_ctrlr->parent = ca91cx42_bridge;
-		mutex_init(&dma_ctrlr->mtx);
-		dma_ctrlr->locked = 0;
-		dma_ctrlr->number = i;
-		dma_ctrlr->route_attr = VME_DMA_VME_TO_MEM |
-			VME_DMA_MEM_TO_VME;
-		INIT_LIST_HEAD(&dma_ctrlr->pending);
-		INIT_LIST_HEAD(&dma_ctrlr->running);
-		list_add_tail(&dma_ctrlr->list,
-			&ca91cx42_bridge->dma_resources);
-	}
-
-	/* Add location monitor to list */
-	lm = kmalloc(sizeof(*lm), GFP_KERNEL);
-	if (!lm) {
-		retval = -ENOMEM;
-		goto err_lm;
-	}
-	lm->parent = ca91cx42_bridge;
-	mutex_init(&lm->mtx);
-	lm->locked = 0;
-	lm->number = 1;
-	lm->monitors = 4;
-	list_add_tail(&lm->list, &ca91cx42_bridge->lm_resources);
-
-	ca91cx42_bridge->slave_get = ca91cx42_slave_get;
-	ca91cx42_bridge->slave_set = ca91cx42_slave_set;
-	ca91cx42_bridge->master_get = ca91cx42_master_get;
-	ca91cx42_bridge->master_set = ca91cx42_master_set;
-	ca91cx42_bridge->master_read = ca91cx42_master_read;
-	ca91cx42_bridge->master_write = ca91cx42_master_write;
-	ca91cx42_bridge->master_rmw = ca91cx42_master_rmw;
-	ca91cx42_bridge->dma_list_add = ca91cx42_dma_list_add;
-	ca91cx42_bridge->dma_list_exec = ca91cx42_dma_list_exec;
-	ca91cx42_bridge->dma_list_empty = ca91cx42_dma_list_empty;
-	ca91cx42_bridge->irq_set = ca91cx42_irq_set;
-	ca91cx42_bridge->irq_generate = ca91cx42_irq_generate;
-	ca91cx42_bridge->lm_set = ca91cx42_lm_set;
-	ca91cx42_bridge->lm_get = ca91cx42_lm_get;
-	ca91cx42_bridge->lm_attach = ca91cx42_lm_attach;
-	ca91cx42_bridge->lm_detach = ca91cx42_lm_detach;
-	ca91cx42_bridge->slot_get = ca91cx42_slot_get;
-	ca91cx42_bridge->alloc_consistent = ca91cx42_alloc_consistent;
-	ca91cx42_bridge->free_consistent = ca91cx42_free_consistent;
-
-	data = ioread32(ca91cx42_device->base + MISC_CTL);
-	dev_info(&pdev->dev, "Board is%s the VME system controller\n",
-		(data & CA91CX42_MISC_CTL_SYSCON) ? "" : " not");
-	dev_info(&pdev->dev, "Slot ID is %d\n",
-		ca91cx42_slot_get(ca91cx42_bridge));
-
-	if (ca91cx42_crcsr_init(ca91cx42_bridge, pdev))
-		dev_err(&pdev->dev, "CR/CSR configuration failed.\n");
-
-	/* Need to save ca91cx42_bridge pointer locally in link list for use in
-	 * ca91cx42_remove()
-	 */
-	retval = vme_register_bridge(ca91cx42_bridge);
-	if (retval != 0) {
-		dev_err(&pdev->dev, "Chip Registration failed.\n");
-		goto err_reg;
-	}
-
-	pci_set_drvdata(pdev, ca91cx42_bridge);
-
-	return 0;
-
-err_reg:
-	ca91cx42_crcsr_exit(ca91cx42_bridge, pdev);
-err_lm:
-	/* resources are stored in link list */
-	list_for_each_safe(pos, n, &ca91cx42_bridge->lm_resources) {
-		lm = list_entry(pos, struct vme_lm_resource, list);
-		list_del(pos);
-		kfree(lm);
-	}
-err_dma:
-	/* resources are stored in link list */
-	list_for_each_safe(pos, n, &ca91cx42_bridge->dma_resources) {
-		dma_ctrlr = list_entry(pos, struct vme_dma_resource, list);
-		list_del(pos);
-		kfree(dma_ctrlr);
-	}
-err_slave:
-	/* resources are stored in link list */
-	list_for_each_safe(pos, n, &ca91cx42_bridge->slave_resources) {
-		slave_image = list_entry(pos, struct vme_slave_resource, list);
-		list_del(pos);
-		kfree(slave_image);
-	}
-err_master:
-	/* resources are stored in link list */
-	list_for_each_safe(pos, n, &ca91cx42_bridge->master_resources) {
-		master_image = list_entry(pos, struct vme_master_resource,
-			list);
-		list_del(pos);
-		kfree(master_image);
-	}
-
-	ca91cx42_irq_exit(ca91cx42_device, pdev);
-err_irq:
-err_test:
-	iounmap(ca91cx42_device->base);
-err_remap:
-	pci_release_regions(pdev);
-err_resource:
-	pci_disable_device(pdev);
-err_enable:
-	kfree(ca91cx42_device);
-err_driver:
-	kfree(ca91cx42_bridge);
-err_struct:
-	return retval;
-
-}
-
-static void ca91cx42_remove(struct pci_dev *pdev)
-{
-	struct list_head *pos = NULL, *n;
-	struct vme_master_resource *master_image;
-	struct vme_slave_resource *slave_image;
-	struct vme_dma_resource *dma_ctrlr;
-	struct vme_lm_resource *lm;
-	struct ca91cx42_driver *bridge;
-	struct vme_bridge *ca91cx42_bridge = pci_get_drvdata(pdev);
-
-	bridge = ca91cx42_bridge->driver_priv;
-
-
-	/* Turn off Ints */
-	iowrite32(0, bridge->base + LINT_EN);
-
-	/* Turn off the windows */
-	iowrite32(0x00800000, bridge->base + LSI0_CTL);
-	iowrite32(0x00800000, bridge->base + LSI1_CTL);
-	iowrite32(0x00800000, bridge->base + LSI2_CTL);
-	iowrite32(0x00800000, bridge->base + LSI3_CTL);
-	iowrite32(0x00800000, bridge->base + LSI4_CTL);
-	iowrite32(0x00800000, bridge->base + LSI5_CTL);
-	iowrite32(0x00800000, bridge->base + LSI6_CTL);
-	iowrite32(0x00800000, bridge->base + LSI7_CTL);
-	iowrite32(0x00F00000, bridge->base + VSI0_CTL);
-	iowrite32(0x00F00000, bridge->base + VSI1_CTL);
-	iowrite32(0x00F00000, bridge->base + VSI2_CTL);
-	iowrite32(0x00F00000, bridge->base + VSI3_CTL);
-	iowrite32(0x00F00000, bridge->base + VSI4_CTL);
-	iowrite32(0x00F00000, bridge->base + VSI5_CTL);
-	iowrite32(0x00F00000, bridge->base + VSI6_CTL);
-	iowrite32(0x00F00000, bridge->base + VSI7_CTL);
-
-	vme_unregister_bridge(ca91cx42_bridge);
-
-	ca91cx42_crcsr_exit(ca91cx42_bridge, pdev);
-
-	/* resources are stored in link list */
-	list_for_each_safe(pos, n, &ca91cx42_bridge->lm_resources) {
-		lm = list_entry(pos, struct vme_lm_resource, list);
-		list_del(pos);
-		kfree(lm);
-	}
-
-	/* resources are stored in link list */
-	list_for_each_safe(pos, n, &ca91cx42_bridge->dma_resources) {
-		dma_ctrlr = list_entry(pos, struct vme_dma_resource, list);
-		list_del(pos);
-		kfree(dma_ctrlr);
-	}
-
-	/* resources are stored in link list */
-	list_for_each_safe(pos, n, &ca91cx42_bridge->slave_resources) {
-		slave_image = list_entry(pos, struct vme_slave_resource, list);
-		list_del(pos);
-		kfree(slave_image);
-	}
-
-	/* resources are stored in link list */
-	list_for_each_safe(pos, n, &ca91cx42_bridge->master_resources) {
-		master_image = list_entry(pos, struct vme_master_resource,
-			list);
-		list_del(pos);
-		kfree(master_image);
-	}
-
-	ca91cx42_irq_exit(bridge, pdev);
-
-	iounmap(bridge->base);
-
-	pci_release_regions(pdev);
-
-	pci_disable_device(pdev);
-
-	kfree(ca91cx42_bridge);
-}
-
-module_pci_driver(ca91cx42_driver);
-
-MODULE_PARM_DESC(geoid, "Override geographical addressing");
-module_param(geoid, int, 0);
-
-MODULE_DESCRIPTION("VME driver for the Tundra Universe II VME bridge");
-MODULE_LICENSE("GPL");