Merge branch 'master' of /home/trondmy/kernel/linux-2.6/

Conflicts:

	net/sunrpc/auth_gss/gss_krb5_crypto.c
	net/sunrpc/auth_gss/gss_spkm3_token.c
	net/sunrpc/clnt.c

Merge with mainline and fix conflicts.

9 files changed, 457 insertions, 151 deletions

diff --git a/arch/ia64/sn/kernel/huberror.c b/arch/ia64/sn/kernel/huberror.c
index abca6bd7962f..fcf7f93c4b61 100644
--- a/arch/ia64/sn/kernel/huberror.c
+++ b/arch/ia64/sn/kernel/huberror.c
@@ -3,7 +3,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 1992 - 1997, 2000,2002-2005 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 1992 - 1997, 2000,2002-2007 Silicon Graphics, Inc. All rights reserved.
  */
 
 #include <linux/types.h>
@@ -38,12 +38,20 @@ static irqreturn_t hub_eint_handler(int irq, void *arg)
                         (u64) nasid, 0, 0, 0, 0, 0, 0);
 
                 if ((int)ret_stuff.v0)
-                        panic("hubii_eint_handler(): Fatal TIO Error");
+                        panic("%s: Fatal %s Error", __FUNCTION__,
+                                ((nasid & 1) ? "TIO" : "HUBII"));
 
                 if (!(nasid & 1)) /* Not a TIO, handle CRB errors */
                         (void)hubiio_crb_error_handler(hubdev_info);
-        } else 
-                bte_error_handler((unsigned long)NODEPDA(nasid_to_cnodeid(nasid)));
+        } else
+                if (nasid & 1) {        /* TIO errors */
+                        SAL_CALL_NOLOCK(ret_stuff, SN_SAL_HUB_ERROR_INTERRUPT,
+                                (u64) nasid, 0, 0, 0, 0, 0, 0);
+
+                        if ((int)ret_stuff.v0)
+                                panic("%s: Fatal TIO Error", __FUNCTION__);
+                } else
+                        bte_error_handler((unsigned long)NODEPDA(nasid_to_cnodeid(nasid)));
 
         return IRQ_HANDLED;
 }
diff --git a/arch/ia64/sn/kernel/io_acpi_init.c b/arch/ia64/sn/kernel/io_acpi_init.c
index cb96b4ea7df6..8c331ca6e5c9 100644
--- a/arch/ia64/sn/kernel/io_acpi_init.c
+++ b/arch/ia64/sn/kernel/io_acpi_init.c
@@ -13,6 +13,7 @@
 #include <asm/sn/sn_sal.h>
 #include "xtalk/hubdev.h"
 #include <linux/acpi.h>
+#include <acpi/acnamesp.h>
 
 
 /*
@@ -31,6 +32,12 @@ struct acpi_vendor_uuid sn_uuid = {
                     0xa2, 0x7c, 0x08, 0x00, 0x69, 0x13, 0xea, 0x51 },
 };
 
+struct sn_pcidev_match {
+        u8 bus;
+        unsigned int devfn;
+        acpi_handle handle;
+};
+
 /*
  * Perform the early IO init in PROM.
  */
@@ -119,9 +126,11 @@ sn_get_bussoft_ptr(struct pci_bus *bus)
         status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS,
                                           &sn_uuid, &buffer);
         if (ACPI_FAILURE(status)) {
-                printk(KERN_ERR "get_acpi_pcibus_ptr: "
-                       "get_acpi_bussoft_info() failed: %d\n",
-                       status);
+                printk(KERN_ERR "%s: "
+                       "acpi_get_vendor_resource() failed (0x%x) for: ",
+                       __FUNCTION__, status);
+                acpi_ns_print_node_pathname(handle, NULL);
+                printk("\n");
                 return NULL;
         }
         resource = buffer.pointer;
@@ -130,8 +139,8 @@ sn_get_bussoft_ptr(struct pci_bus *bus)
         if ((vendor->byte_length - sizeof(struct acpi_vendor_uuid)) !=
              sizeof(struct pcibus_bussoft *)) {
                 printk(KERN_ERR
-                       "get_acpi_bussoft_ptr: Invalid vendor data "
-                       "length %d\n", vendor->byte_length);
+                       "%s: Invalid vendor data length %d\n",
+                        __FUNCTION__, vendor->byte_length);
                 kfree(buffer.pointer);
                 return NULL;
         }
@@ -143,34 +152,254 @@ sn_get_bussoft_ptr(struct pci_bus *bus)
 }
 
 /*
- * sn_acpi_bus_fixup
+ * sn_extract_device_info - Extract the pcidev_info and the sn_irq_info
+ *                          pointers from the vendor resource using the
+ *                          provided acpi handle, and copy the structures
+ *                          into the argument buffers.
  */
-void
-sn_acpi_bus_fixup(struct pci_bus *bus)
+static int
+sn_extract_device_info(acpi_handle handle, struct pcidev_info **pcidev_info,
+                    struct sn_irq_info **sn_irq_info)
 {
-        struct pci_dev *pci_dev = NULL;
-        struct pcibus_bussoft *prom_bussoft_ptr;
-        extern void sn_common_bus_fixup(struct pci_bus *,
-                                        struct pcibus_bussoft *);
+        u64 addr;
+        struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+        struct sn_irq_info *irq_info, *irq_info_prom;
+        struct pcidev_info *pcidev_ptr, *pcidev_prom_ptr;
+        struct acpi_resource *resource;
+        int ret = 0;
+        acpi_status status;
+        struct acpi_resource_vendor_typed *vendor;
 
-        if (!bus->parent) {     /* If root bus */
-                prom_bussoft_ptr = sn_get_bussoft_ptr(bus);
-                if (prom_bussoft_ptr == NULL) {
+        /*
+         * The pointer to this device's pcidev_info structure in
+         * the PROM, is in the vendor resource.
+         */
+        status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS,
+                                          &sn_uuid, &buffer);
+        if (ACPI_FAILURE(status)) {
+                printk(KERN_ERR
+                       "%s: acpi_get_vendor_resource() failed (0x%x) for: ",
+                        __FUNCTION__, status);
+                acpi_ns_print_node_pathname(handle, NULL);
+                printk("\n");
+                return 1;
+        }
+
+        resource = buffer.pointer;
+        vendor = &resource->data.vendor_typed;
+        if ((vendor->byte_length - sizeof(struct acpi_vendor_uuid)) !=
+            sizeof(struct pci_devdev_info *)) {
+                printk(KERN_ERR
+                       "%s: Invalid vendor data length: %d for: ",
+                        __FUNCTION__, vendor->byte_length);
+                acpi_ns_print_node_pathname(handle, NULL);
+                printk("\n");
+                ret = 1;
+                goto exit;
+        }
+
+        pcidev_ptr = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL);
+        if (!pcidev_ptr)
+                panic("%s: Unable to alloc memory for pcidev_info", __FUNCTION__);
+
+        memcpy(&addr, vendor->byte_data, sizeof(struct pcidev_info *));
+        pcidev_prom_ptr = __va(addr);
+        memcpy(pcidev_ptr, pcidev_prom_ptr, sizeof(struct pcidev_info));
+
+        /* Get the IRQ info */
+        irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
+        if (!irq_info)
+                 panic("%s: Unable to alloc memory for sn_irq_info", __FUNCTION__);
+
+        if (pcidev_ptr->pdi_sn_irq_info) {
+                irq_info_prom = __va(pcidev_ptr->pdi_sn_irq_info);
+                memcpy(irq_info, irq_info_prom, sizeof(struct sn_irq_info));
+        }
+
+        *pcidev_info = pcidev_ptr;
+        *sn_irq_info = irq_info;
+
+exit:
+        kfree(buffer.pointer);
+        return ret;
+}
+
+static unsigned int
+get_host_devfn(acpi_handle device_handle, acpi_handle rootbus_handle)
+{
+        unsigned long adr;
+        acpi_handle child;
+        unsigned int devfn;
+        int function;
+        acpi_handle parent;
+        int slot;
+        acpi_status status;
+
+        /*
+         * Do an upward search to find the root bus device, and
+         * obtain the host devfn from the previous child device.
+         */
+        child = device_handle;
+        while (child) {
+                status = acpi_get_parent(child, &parent);
+                if (ACPI_FAILURE(status)) {
+                        printk(KERN_ERR "%s: acpi_get_parent() failed "
+                               "(0x%x) for: ", __FUNCTION__, status);
+                        acpi_ns_print_node_pathname(child, NULL);
+                        printk("\n");
+                        panic("%s: Unable to find host devfn\n", __FUNCTION__);
+                }
+                if (parent == rootbus_handle)
+                        break;
+                child = parent;
+        }
+        if (!child) {
+                printk(KERN_ERR "%s: Unable to find root bus for: ",
+                       __FUNCTION__);
+                acpi_ns_print_node_pathname(device_handle, NULL);
+                printk("\n");
+                BUG();
+        }
+
+        status = acpi_evaluate_integer(child, METHOD_NAME__ADR, NULL, &adr);
+        if (ACPI_FAILURE(status)) {
+                printk(KERN_ERR "%s: Unable to get _ADR (0x%x) for: ",
+                       __FUNCTION__, status);
+                acpi_ns_print_node_pathname(child, NULL);
+                printk("\n");
+                panic("%s: Unable to find host devfn\n", __FUNCTION__);
+        }
+
+        slot = (adr >> 16) & 0xffff;
+        function = adr & 0xffff;
+        devfn = PCI_DEVFN(slot, function);
+        return devfn;
+}
+
+/*
+ * find_matching_device - Callback routine to find the ACPI device
+ *                        that matches up with our pci_dev device.
+ *                        Matching is done on bus number and devfn.
+ *                        To find the bus number for a particular
+ *                        ACPI device, we must look at the _BBN method
+ *                        of its parent.
+ */
+static acpi_status
+find_matching_device(acpi_handle handle, u32 lvl, void *context, void **rv)
+{
+        unsigned long bbn = -1;
+        unsigned long adr;
+        acpi_handle parent = NULL;
+        acpi_status status;
+        unsigned int devfn;
+        int function;
+        int slot;
+        struct sn_pcidev_match *info = context;
+
+        status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL,
+                                       &adr);
+        if (ACPI_SUCCESS(status)) {
+                status = acpi_get_parent(handle, &parent);
+                if (ACPI_FAILURE(status)) {
                         printk(KERN_ERR
-                               "sn_pci_fixup_bus: 0x%04x:0x%02x Unable to "
-                               "obtain prom_bussoft_ptr\n",
-                               pci_domain_nr(bus), bus->number);
-                        return;
+                               "%s: acpi_get_parent() failed (0x%x) for: ",
+                                        __FUNCTION__, status);
+                        acpi_ns_print_node_pathname(handle, NULL);
+                        printk("\n");
+                        return AE_OK;
+                }
+                status = acpi_evaluate_integer(parent, METHOD_NAME__BBN,
+                                               NULL, &bbn);
+                if (ACPI_FAILURE(status)) {
+                        printk(KERN_ERR
+                          "%s: Failed to find _BBN in parent of: ",
+                                        __FUNCTION__);
+                        acpi_ns_print_node_pathname(handle, NULL);
+                        printk("\n");
+                        return AE_OK;
+                }
+
+                slot = (adr >> 16) & 0xffff;
+                function = adr & 0xffff;
+                devfn = PCI_DEVFN(slot, function);
+                if ((info->devfn == devfn) && (info->bus == bbn)) {
+                        /* We have a match! */
+                        info->handle = handle;
+                        return 1;
                 }
-                sn_common_bus_fixup(bus, prom_bussoft_ptr);
         }
-        list_for_each_entry(pci_dev, &bus->devices, bus_list) {
-                sn_pci_fixup_slot(pci_dev);
+        return AE_OK;
+}
+
+/*
+ * sn_acpi_get_pcidev_info - Search ACPI namespace for the acpi
+ *                           device matching the specified pci_dev,
+ *                           and return the pcidev info and irq info.
+ */
+int
+sn_acpi_get_pcidev_info(struct pci_dev *dev, struct pcidev_info **pcidev_info,
+                        struct sn_irq_info **sn_irq_info)
+{
+        unsigned int host_devfn;
+        struct sn_pcidev_match pcidev_match;
+        acpi_handle rootbus_handle;
+        unsigned long segment;
+        acpi_status status;
+
+        rootbus_handle = PCI_CONTROLLER(dev)->acpi_handle;
+        status = acpi_evaluate_integer(rootbus_handle, METHOD_NAME__SEG, NULL,
+                                       &segment);
+        if (ACPI_SUCCESS(status)) {
+                if (segment != pci_domain_nr(dev)) {
+                        printk(KERN_ERR
+                               "%s: Segment number mismatch, 0x%lx vs 0x%x for: ",
+                               __FUNCTION__, segment, pci_domain_nr(dev));
+                        acpi_ns_print_node_pathname(rootbus_handle, NULL);
+                        printk("\n");
+                        return 1;
+                }
+        } else {
+                printk(KERN_ERR "%s: Unable to get __SEG from: ",
+                       __FUNCTION__);
+                acpi_ns_print_node_pathname(rootbus_handle, NULL);
+                printk("\n");
+                return 1;
+        }
+
+        /*
+         * We want to search all devices in this segment/domain
+         * of the ACPI namespace for the matching ACPI device,
+         * which holds the pcidev_info pointer in its vendor resource.
+         */
+        pcidev_match.bus = dev->bus->number;
+        pcidev_match.devfn = dev->devfn;
+        pcidev_match.handle = NULL;
+
+        acpi_walk_namespace(ACPI_TYPE_DEVICE, rootbus_handle, ACPI_UINT32_MAX,
+                            find_matching_device, &pcidev_match, NULL);
+
+        if (!pcidev_match.handle) {
+                printk(KERN_ERR
+                       "%s: Could not find matching ACPI device for %s.\n",
+                       __FUNCTION__, pci_name(dev));
+                return 1;
         }
+
+        if (sn_extract_device_info(pcidev_match.handle, pcidev_info, sn_irq_info))
+                return 1;
+
+        /* Build up the pcidev_info.pdi_slot_host_handle */
+        host_devfn = get_host_devfn(pcidev_match.handle, rootbus_handle);
+        (*pcidev_info)->pdi_slot_host_handle =
+                        ((unsigned long) pci_domain_nr(dev) << 40) |
+                                        /* bus == 0 */
+                                        host_devfn;
+        return 0;
 }
 
 /*
- * sn_acpi_slot_fixup - Perform any SN specific slot fixup.
+ * sn_acpi_slot_fixup - Obtain the pcidev_info and sn_irq_info.
+ *                      Perform any SN specific slot fixup.
  *                      At present there does not appear to be
  *                      any generic way to handle a ROM image
  *                      that has been shadowed by the PROM, so
@@ -179,11 +408,18 @@ sn_acpi_bus_fixup(struct pci_bus *bus)
  */
 
 void
-sn_acpi_slot_fixup(struct pci_dev *dev, struct pcidev_info *pcidev_info)
+sn_acpi_slot_fixup(struct pci_dev *dev)
 {
         void __iomem *addr;
+        struct pcidev_info *pcidev_info = NULL;
+        struct sn_irq_info *sn_irq_info = NULL;
         size_t size;
 
+        if (sn_acpi_get_pcidev_info(dev, &pcidev_info, &sn_irq_info)) {
+                panic("%s:  Failure obtaining pcidev_info for %s\n",
+                      __FUNCTION__, pci_name(dev));
+        }
+
         if (pcidev_info->pdi_pio_mapped_addr[PCI_ROM_RESOURCE]) {
                 /*
                  * A valid ROM image exists and has been shadowed by the
@@ -200,8 +436,11 @@ sn_acpi_slot_fixup(struct pci_dev *dev, struct pcidev_info *pcidev_info)
                                                 (unsigned long) addr + size;
                 dev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_BIOS_COPY;
         }
+        sn_pci_fixup_slot(dev, pcidev_info, sn_irq_info);
 }
 
+EXPORT_SYMBOL(sn_acpi_slot_fixup);
+
 static struct acpi_driver acpi_sn_hubdev_driver = {
         .name = "SGI HUBDEV Driver",
         .ids = "SGIHUB,SGITIO",
@@ -212,6 +451,33 @@ static struct acpi_driver acpi_sn_hubdev_driver = {
 
 
 /*
+ * sn_acpi_bus_fixup -  Perform SN specific setup of software structs
+ *                      (pcibus_bussoft, pcidev_info) and hardware
+ *                      registers, for the specified bus and devices under it.
+ */
+void
+sn_acpi_bus_fixup(struct pci_bus *bus)
+{
+        struct pci_dev *pci_dev = NULL;
+        struct pcibus_bussoft *prom_bussoft_ptr;
+
+        if (!bus->parent) {     /* If root bus */
+                prom_bussoft_ptr = sn_get_bussoft_ptr(bus);
+                if (prom_bussoft_ptr == NULL) {
+                        printk(KERN_ERR
+                               "%s: 0x%04x:0x%02x Unable to "
+                               "obtain prom_bussoft_ptr\n",
+                               __FUNCTION__, pci_domain_nr(bus), bus->number);
+                        return;
+                }
+                sn_common_bus_fixup(bus, prom_bussoft_ptr);
+        }
+        list_for_each_entry(pci_dev, &bus->devices, bus_list) {
+                sn_acpi_slot_fixup(pci_dev);
+        }
+}
+
+/*
  * sn_io_acpi_init - PROM has ACPI support for IO, defining at a minimum the
  *                   nodes and root buses in the DSDT. As a result, bus scanning
  *                   will be initiated by the Linux ACPI code.
diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c
index d4dd8f4b6b8d..d48bcd83253c 100644
--- a/arch/ia64/sn/kernel/io_common.c
+++ b/arch/ia64/sn/kernel/io_common.c
@@ -26,14 +26,10 @@
 #include <linux/acpi.h>
 #include <asm/sn/sn2/sn_hwperf.h>
 #include <asm/sn/acpi.h>
+#include "acpi/acglobal.h"
 
 extern void sn_init_cpei_timer(void);
 extern void register_sn_procfs(void);
-extern void sn_acpi_bus_fixup(struct pci_bus *);
-extern void sn_bus_fixup(struct pci_bus *);
-extern void sn_acpi_slot_fixup(struct pci_dev *, struct pcidev_info *);
-extern void sn_more_slot_fixup(struct pci_dev *, struct pcidev_info *);
-extern void sn_legacy_pci_window_fixup(struct pci_controller *, u64, u64);
 extern void sn_io_acpi_init(void);
 extern void sn_io_init(void);
 
@@ -48,6 +44,9 @@ struct sysdata_el {
 
 int sn_ioif_inited;             /* SN I/O infrastructure initialized? */
 
+int sn_acpi_rev;                /* SN ACPI revision */
+EXPORT_SYMBOL_GPL(sn_acpi_rev);
+
 struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES];       /* indexed by asic type */
 
 /*
@@ -99,25 +98,6 @@ sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num,
 }
 
 /*
- * Retrieve the pci device information given the bus and device|function number.
- */
-static inline u64
-sal_get_pcidev_info(u64 segment, u64 bus_number, u64 devfn, u64 pci_dev,
-                    u64 sn_irq_info)
-{
-        struct ia64_sal_retval ret_stuff;
-        ret_stuff.status = 0;
-        ret_stuff.v0 = 0;
-
-        SAL_CALL_NOLOCK(ret_stuff,
-                        (u64) SN_SAL_IOIF_GET_PCIDEV_INFO,
-                        (u64) segment, (u64) bus_number, (u64) devfn,
-                        (u64) pci_dev,
-                        sn_irq_info, 0, 0);
-        return ret_stuff.v0;
-}
-
-/*
  * sn_pcidev_info_get() - Retrieve the pcidev_info struct for the specified
  *                        device.
  */
@@ -249,50 +229,25 @@ void sn_pci_unfixup_slot(struct pci_dev *dev)
 }
 
 /*
- * sn_pci_fixup_slot() - This routine sets up a slot's resources consistent
- *                       with the Linux PCI abstraction layer. Resources
- *                       acquired from our PCI provider include PIO maps
- *                       to BAR space and interrupt objects.
+ * sn_pci_fixup_slot()
  */
-void sn_pci_fixup_slot(struct pci_dev *dev)
+void sn_pci_fixup_slot(struct pci_dev *dev, struct pcidev_info *pcidev_info,
+                       struct sn_irq_info *sn_irq_info)
 {
         int segment = pci_domain_nr(dev->bus);
-        int status = 0;
         struct pcibus_bussoft *bs;
-        struct pci_bus *host_pci_bus;
-        struct pci_dev *host_pci_dev;
-        struct pcidev_info *pcidev_info;
-        struct sn_irq_info *sn_irq_info;
-        unsigned int bus_no, devfn;
+        struct pci_bus *host_pci_bus;
+        struct pci_dev *host_pci_dev;
+        unsigned int bus_no, devfn;
 
         pci_dev_get(dev); /* for the sysdata pointer */
-        pcidev_info = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL);
-        if (!pcidev_info)
-                BUG();          /* Cannot afford to run out of memory */
-
-        sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
-        if (!sn_irq_info)
-                BUG();          /* Cannot afford to run out of memory */
-
-        /* Call to retrieve pci device information needed by kernel. */
-        status = sal_get_pcidev_info((u64) segment, (u64) dev->bus->number,
-                                     dev->devfn,
-                                     (u64) __pa(pcidev_info),
-                                     (u64) __pa(sn_irq_info));
-        if (status)
-                BUG(); /* Cannot get platform pci device information */
 
         /* Add pcidev_info to list in pci_controller.platform_data */
         list_add_tail(&pcidev_info->pdi_list,
                       &(SN_PLATFORM_DATA(dev->bus)->pcidev_info));
-
-        if (SN_ACPI_BASE_SUPPORT())
-                sn_acpi_slot_fixup(dev, pcidev_info);
-        else
-                sn_more_slot_fixup(dev, pcidev_info);
         /*
          * Using the PROMs values for the PCI host bus, get the Linux
-         * PCI host_pci_dev struct and set up host bus linkages
+         * PCI host_pci_dev struct and set up host bus linkages
          */
 
         bus_no = (pcidev_info->pdi_slot_host_handle >> 32) & 0xff;
@@ -489,11 +444,6 @@ void sn_generate_path(struct pci_bus *pci_bus, char *address)
                         sprintf(address, "%s^%d", address, geo_slot(geoid));
 }
 
-/*
- * sn_pci_fixup_bus() - Perform SN specific setup of software structs
- *                      (pcibus_bussoft, pcidev_info) and hardware
- *                      registers, for the specified bus and devices under it.
- */
 void __devinit
 sn_pci_fixup_bus(struct pci_bus *bus)
 {
@@ -519,6 +469,15 @@ sn_io_early_init(void)
         if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM())
                 return 0;
 
+        /* we set the acpi revision to that of the DSDT table OEM rev. */
+        {
+                struct acpi_table_header *header = NULL;
+
+                acpi_get_table_by_index(ACPI_TABLE_INDEX_DSDT, &header);
+                BUG_ON(header == NULL);
+                sn_acpi_rev = header->oem_revision;
+        }
+
         /*
          * prime sn_pci_provider[].  Individial provider init routines will
          * override their respective default entries.
@@ -544,8 +503,12 @@ sn_io_early_init(void)
         register_sn_procfs();
 #endif
 
-        printk(KERN_INFO "ACPI  DSDT OEM Rev 0x%x\n",
-               acpi_gbl_DSDT->oem_revision);
+        {
+                struct acpi_table_header *header;
+                (void)acpi_get_table_by_index(ACPI_TABLE_INDEX_DSDT, &header);
+                printk(KERN_INFO "ACPI  DSDT OEM Rev 0x%x\n",
+                        header->oem_revision);
+        }
         if (SN_ACPI_BASE_SUPPORT())
                 sn_io_acpi_init();
         else
@@ -605,7 +568,6 @@ sn_io_late_init(void)
 
 fs_initcall(sn_io_late_init);
 
-EXPORT_SYMBOL(sn_pci_fixup_slot);
 EXPORT_SYMBOL(sn_pci_unfixup_slot);
 EXPORT_SYMBOL(sn_bus_store_sysdata);
 EXPORT_SYMBOL(sn_bus_free_sysdata);
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
index 9ad843e0383b..600be3ebae05 100644
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -56,6 +56,25 @@ static inline u64 sal_get_pcibus_info(u64 segment, u64 busnum, u64 address)
         return ret_stuff.v0;
 }
 
+/*
+ * Retrieve the pci device information given the bus and device|function number.
+ */
+static inline u64
+sal_get_pcidev_info(u64 segment, u64 bus_number, u64 devfn, u64 pci_dev,
+                    u64 sn_irq_info)
+{
+        struct ia64_sal_retval ret_stuff;
+        ret_stuff.status = 0;
+        ret_stuff.v0 = 0;
+
+        SAL_CALL_NOLOCK(ret_stuff,
+                        (u64) SN_SAL_IOIF_GET_PCIDEV_INFO,
+                        (u64) segment, (u64) bus_number, (u64) devfn,
+                        (u64) pci_dev,
+                        sn_irq_info, 0, 0);
+        return ret_stuff.v0;
+}
+
 
 /*
  * sn_fixup_ionodes() - This routine initializes the HUB data structure for
@@ -172,18 +191,40 @@ sn_pci_window_fixup(struct pci_dev *dev, unsigned int count,
 }
 
 /*
- * sn_more_slot_fixup() - We are not running with an ACPI capable PROM,
+ * sn_io_slot_fixup() -   We are not running with an ACPI capable PROM,
  *                        and need to convert the pci_dev->resource
  *                        'start' and 'end' addresses to mapped addresses,
  *                        and setup the pci_controller->window array entries.
  */
 void
-sn_more_slot_fixup(struct pci_dev *dev, struct pcidev_info *pcidev_info)
+sn_io_slot_fixup(struct pci_dev *dev)
 {
         unsigned int count = 0;
         int idx;
         s64 pci_addrs[PCI_ROM_RESOURCE + 1];
         unsigned long addr, end, size, start;
+        struct pcidev_info *pcidev_info;
+        struct sn_irq_info *sn_irq_info;
+        int status;
+
+        pcidev_info = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL);
+        if (!pcidev_info)
+                panic("%s: Unable to alloc memory for pcidev_info", __FUNCTION__);
+
+        sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
+        if (!sn_irq_info)
+                panic("%s: Unable to alloc memory for sn_irq_info", __FUNCTION__);
+
+        /* Call to retrieve pci device information needed by kernel. */
+        status = sal_get_pcidev_info((u64) pci_domain_nr(dev),
+                (u64) dev->bus->number,
+                dev->devfn,
+                (u64) __pa(pcidev_info),
+                (u64) __pa(sn_irq_info));
+
+        if (status)
+                BUG(); /* Cannot get platform pci device information */
+
 
         /* Copy over PIO Mapped Addresses */
         for (idx = 0; idx <= PCI_ROM_RESOURCE; idx++) {
@@ -219,8 +260,12 @@ sn_more_slot_fixup(struct pci_dev *dev, struct pcidev_info *pcidev_info)
          */
         if (count > 0)
                 sn_pci_window_fixup(dev, count, pci_addrs);
+
+        sn_pci_fixup_slot(dev, pcidev_info, sn_irq_info);
 }
 
+EXPORT_SYMBOL(sn_io_slot_fixup);
+
 /*
  * sn_pci_controller_fixup() - This routine sets up a bus's resources
  *                             consistent with the Linux PCI abstraction layer.
@@ -272,9 +317,6 @@ sn_bus_fixup(struct pci_bus *bus)
 {
         struct pci_dev *pci_dev = NULL;
         struct pcibus_bussoft *prom_bussoft_ptr;
-        extern void sn_common_bus_fixup(struct pci_bus *,
-                                        struct pcibus_bussoft *);
-
 
         if (!bus->parent) {  /* If root bus */
                 prom_bussoft_ptr = PCI_CONTROLLER(bus)->platform_data;
@@ -291,7 +333,7 @@ sn_bus_fixup(struct pci_bus *bus)
                                            prom_bussoft_ptr->bs_legacy_mem);
         }
         list_for_each_entry(pci_dev, &bus->devices, bus_list) {
-                sn_pci_fixup_slot(pci_dev);
+                sn_io_slot_fixup(pci_dev);
         }
 
 }
diff --git a/arch/ia64/sn/kernel/iomv.c b/arch/ia64/sn/kernel/iomv.c
index 4aa4f301d56d..ab7e2fd40798 100644
--- a/arch/ia64/sn/kernel/iomv.c
+++ b/arch/ia64/sn/kernel/iomv.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
@@ -26,9 +26,10 @@
  * @port: port to convert
  *
  * Legacy in/out instructions are converted to ld/st instructions
- * on IA64.  This routine will convert a port number into a valid 
+ * on IA64.  This routine will convert a port number into a valid
  * SN i/o address.  Used by sn_in*() and sn_out*().
  */
+
 void *sn_io_addr(unsigned long port)
 {
         if (!IS_RUNNING_ON_SIMULATOR()) {
diff --git a/arch/ia64/sn/kernel/msi_sn.c b/arch/ia64/sn/kernel/msi_sn.c
index b3a435fd70fb..ea3dc38d73fd 100644
--- a/arch/ia64/sn/kernel/msi_sn.c
+++ b/arch/ia64/sn/kernel/msi_sn.c
@@ -59,13 +59,12 @@ void sn_teardown_msi_irq(unsigned int irq)
         sn_intr_free(nasid, widget, sn_irq_info);
         sn_msi_info[irq].sn_irq_info = NULL;
 
-        return;
+        destroy_irq(irq);
 }
 
-int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
+int sn_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *entry)
 {
         struct msi_msg msg;
-        struct msi_desc *entry;
         int widget;
         int status;
         nasid_t nasid;
@@ -73,8 +72,8 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
         struct sn_irq_info *sn_irq_info;
         struct pcibus_bussoft *bussoft = SN_PCIDEV_BUSSOFT(pdev);
         struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
+        int irq;
 
-        entry = get_irq_data(irq);
         if (!entry->msi_attrib.is_64)
                 return -EINVAL;
 
@@ -84,6 +83,11 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
         if (provider == NULL || provider->dma_map_consistent == NULL)
                 return -EINVAL;
 
+        irq = create_irq();
+        if (irq < 0)
+                return irq;
+
+        set_irq_msi(irq, entry);
         /*
          * Set up the vector plumbing.  Let the prom (via sn_intr_alloc)
          * decide which cpu to direct this msi at by default.
@@ -95,12 +99,15 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
                         SWIN_WIDGETNUM(bussoft->bs_base);
 
         sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
-        if (! sn_irq_info)
+        if (! sn_irq_info) {
+                destroy_irq(irq);
                 return -ENOMEM;
+        }
 
         status = sn_intr_alloc(nasid, widget, sn_irq_info, irq, -1, -1);
         if (status) {
                 kfree(sn_irq_info);
+                destroy_irq(irq);
                 return -ENOMEM;
         }
 
@@ -121,6 +128,7 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
         if (! bus_addr) {
                 sn_intr_free(nasid, widget, sn_irq_info);
                 kfree(sn_irq_info);
+                destroy_irq(irq);
                 return -ENOMEM;
         }
 
@@ -139,7 +147,7 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
         write_msi_msg(irq, &msg);
         set_irq_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq);
 
-        return 0;
+        return irq;
 }
 
 #ifdef CONFIG_SMP
diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c
index d9d306c79f2d..601747b1e22a 100644
--- a/arch/ia64/sn/kernel/sn2/sn2_smp.c
+++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c
@@ -455,7 +455,7 @@ static int sn2_ptc_proc_open(struct inode *inode, struct file *file)
         return seq_open(file, &sn2_ptc_seq_ops);
 }
 
-static struct file_operations proc_sn2_ptc_operations = {
+static const struct file_operations proc_sn2_ptc_operations = {
         .open = sn2_ptc_proc_open,
         .read = seq_read,
         .llseek = seq_lseek,
diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
index 33367996d72d..6da9854751cd 100644
--- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c
+++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
@@ -865,7 +865,7 @@ error:
         return r;
 }
 
-static struct file_operations sn_hwperf_fops = {
+static const struct file_operations sn_hwperf_fops = {
         .ioctl = sn_hwperf_ioctl,
 };
 
diff --git a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
index 43ddc2eccb96..62b3e9a496ac 100644
--- a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
+++ b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
@@ -89,61 +89,80 @@ static int coherence_id_open(struct inode *inode, struct file *file)
         return single_open(file, coherence_id_show, NULL);
 }
 
-static struct proc_dir_entry
-*sn_procfs_create_entry(const char *name, struct proc_dir_entry *parent,
-                        int (*openfunc)(struct inode *, struct file *),
-        int (*releasefunc)(struct inode *, struct file *),
-        ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *))
-{
-        struct proc_dir_entry *e = create_proc_entry(name, 0444, parent);
-
-        if (e) {
-                struct file_operations *f;
-
-                f = kzalloc(sizeof(*f), GFP_KERNEL);
-                if (f) {
-                        f->open = openfunc;
-                        f->read = seq_read;
-                        f->llseek = seq_lseek;
-                        f->release = releasefunc;
-                        f->write = write;
-                        e->proc_fops = f;
-                }
-        }
-
-        return e;
-}
-
 /* /proc/sgi_sn/sn_topology uses seq_file, see sn_hwperf.c */
 extern int sn_topology_open(struct inode *, struct file *);
 extern int sn_topology_release(struct inode *, struct file *);
 
+static const struct file_operations proc_partition_id_fops = {
+        .open           = partition_id_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
+static const struct file_operations proc_system_sn_fops = {
+        .open           = system_serial_number_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
+static const struct file_operations proc_license_id_fops = {
+        .open           = licenseID_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
+static const struct file_operations proc_sn_force_intr_fops = {
+        .open           = sn_force_interrupt_open,
+        .read           = seq_read,
+        .write          = sn_force_interrupt_write_proc,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
+static const struct file_operations proc_coherence_id_fops = {
+        .open           = coherence_id_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
+static const struct file_operations proc_sn_topo_fops = {
+        .open           = sn_topology_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = sn_topology_release,
+};
+
 void register_sn_procfs(void)
 {
         static struct proc_dir_entry *sgi_proc_dir = NULL;
+        struct proc_dir_entry *pde;
 
         BUG_ON(sgi_proc_dir != NULL);
         if (!(sgi_proc_dir = proc_mkdir("sgi_sn", NULL)))
                 return;
 
-        sn_procfs_create_entry("partition_id", sgi_proc_dir,
-                partition_id_open, single_release, NULL);
-
-        sn_procfs_create_entry("system_serial_number", sgi_proc_dir,
-                system_serial_number_open, single_release, NULL);
-
-        sn_procfs_create_entry("licenseID", sgi_proc_dir, 
-                licenseID_open, single_release, NULL);
-
-        sn_procfs_create_entry("sn_force_interrupt", sgi_proc_dir,
-                sn_force_interrupt_open, single_release,
-                sn_force_interrupt_write_proc);
-
-        sn_procfs_create_entry("coherence_id", sgi_proc_dir, 
-                coherence_id_open, single_release, NULL);
-        
-        sn_procfs_create_entry("sn_topology", sgi_proc_dir,
-                sn_topology_open, sn_topology_release, NULL);
+        pde = create_proc_entry("partition_id", 0444, sgi_proc_dir);
+        if (pde)
+                pde->proc_fops = &proc_partition_id_fops;
+        pde = create_proc_entry("system_serial_number", 0444, sgi_proc_dir);
+        if (pde)
+                pde->proc_fops = &proc_system_sn_fops;
+        pde = create_proc_entry("licenseID", 0444, sgi_proc_dir);
+        if (pde)
+                pde->proc_fops = &proc_license_id_fops;
+        pde = create_proc_entry("sn_force_interrupt", 0644, sgi_proc_dir);
+        if (pde)
+                pde->proc_fops = &proc_sn_force_intr_fops;
+        pde = create_proc_entry("coherence_id", 0444, sgi_proc_dir);
+        if (pde)
+                pde->proc_fops = &proc_coherence_id_fops;
+        pde = create_proc_entry("sn_topology", 0444, sgi_proc_dir);
+        if (pde)
+                pde->proc_fops = &proc_sn_topo_fops;
 }
 
 #endif /* CONFIG_PROC_FS */