Altix: ACPI SSDT PCI device support
authorJohn Keller <jpk@sgi.com>
Tue, 30 Jan 2007 06:17:37 +0000 (01:17 -0500)
committerLen Brown <len.brown@intel.com>
Sat, 3 Feb 2007 03:14:35 +0000 (22:14 -0500)
Add SN platform support for running with an ACPI
capable PROM that defines PCI devices in SSDT
tables. There is a SSDT table for every occupied
slot on a root bus, containing info for every
PPB and/or device on the bus. The SSDTs will be
dynamically loaded/unloaded at hotplug enable/disable.

Platform specific information that is currently
passed via a SAL call, will now be passed via the
Vendor resource in the ACPI Device object(s) defined
in each SSDT.

Signed-off-by: John Keller <jpk@sgi.com>
Cc: Greg KH <greg@kroah.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
arch/ia64/sn/kernel/io_acpi_init.c
arch/ia64/sn/kernel/io_common.c
arch/ia64/sn/kernel/io_init.c
arch/ia64/sn/pci/pcibr/pcibr_provider.c
include/asm-ia64/sn/acpi.h
include/asm-ia64/sn/pcibr_provider.h
include/asm-ia64/sn/pcidev.h

index cb96b4ea7df6970825151bf3b5f0dd014a43c063..8c331ca6e5c9088a8a8542ebae195306f4d9a6bc 100644 (file)
@@ -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",
@@ -211,6 +450,33 @@ 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
index 75f0379958f903f6d600826150593f18b2f1fa33..d48bcd83253c28073050377cbd5f937882a3f6a5 100644 (file)
 #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);
 
@@ -48,16 +44,10 @@ struct sysdata_el {
 
 int sn_ioif_inited;            /* SN I/O infrastructure initialized? */
 
-struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES];      /* indexed by asic type */
+int sn_acpi_rev;               /* SN ACPI revision */
+EXPORT_SYMBOL_GPL(sn_acpi_rev);
 
-int sn_acpi_base_support(void)
-{
-       struct acpi_table_header *header;
-       (void)acpi_get_table_by_index(ACPI_TABLE_INDEX_DSDT, &header);
-       if (header && header->oem_revision >= 0x20101)
-               return 1;
-       return 0;
-}
+struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES];      /* indexed by asic type */
 
 /*
  * Hooks and struct for unsupported pci providers
@@ -107,25 +97,6 @@ sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num,
        return ret_stuff.status;
 }
 
-/*
- * 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.
@@ -258,50 +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;
@@ -498,11 +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)
 {
@@ -528,6 +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.
@@ -618,7 +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);
index 9ad843e0383b53a1745591defbf2497461a73471..600be3ebae05b660247050b2393057f22b49eda3 100644 (file)
@@ -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);
         }
 
 }
index 6846dc9b432dc7a2582cf451a7a68c7c8bb2bb2b..04a8256017eb6ab8c0294580c52b12b584c15102 100644 (file)
@@ -20,7 +20,8 @@
 #include "xtalk/hubdev.h"
 
 int
-sal_pcibr_slot_enable(struct pcibus_info *soft, int device, void *resp)
+sal_pcibr_slot_enable(struct pcibus_info *soft, int device, void *resp,
+                      char **ssdt)
 {
        struct ia64_sal_retval ret_stuff;
        u64 busnum;
@@ -32,7 +33,8 @@ sal_pcibr_slot_enable(struct pcibus_info *soft, int device, void *resp)
        segment = soft->pbi_buscommon.bs_persist_segment;
        busnum = soft->pbi_buscommon.bs_persist_busnum;
        SAL_CALL_NOLOCK(ret_stuff, (u64) SN_SAL_IOIF_SLOT_ENABLE, segment,
-                       busnum, (u64) device, (u64) resp, 0, 0, 0);
+                       busnum, (u64) device, (u64) resp, (u64)ia64_tpa(ssdt),
+                       0, 0);
 
        return (int)ret_stuff.v0;
 }
index 7d6cb3b686e7313cfb586afdd5597f95bab6fae6..9ce2801cbd5725a87fa19953d3eed714889febe6 100644 (file)
@@ -11,8 +11,7 @@
 
 #include "acpi/acglobal.h"
 
-#define SN_ACPI_BASE_SUPPORT()   sn_acpi_base_support()
-
-extern int sn_acpi_base_support(void);
+extern int sn_acpi_rev;
+#define SN_ACPI_BASE_SUPPORT()   (sn_acpi_rev >= 0x20101)
 
 #endif /* _ASM_IA64_SN_ACPI_H */
index da3eade0cae2cbbfdfca830403cf0889be10b58e..17cb6cc3f21a8dc8899b55aaaa115436a2d2fa9a 100644 (file)
@@ -142,7 +142,7 @@ extern int          pcibr_ate_alloc(struct pcibus_info *, int);
 extern void            pcibr_ate_free(struct pcibus_info *, int);
 extern void            ate_write(struct pcibus_info *, int, int, u64);
 extern int sal_pcibr_slot_enable(struct pcibus_info *soft, int device,
-                                void *resp);
+                                void *resp, char **ssdt);
 extern int sal_pcibr_slot_disable(struct pcibus_info *soft, int device,
                                  int action, void *resp);
 extern u16 sn_ioboard_to_pci_bus(struct pci_bus *pci_bus);
index 9fe89a93d880b1bfcfd06ea84b9b5d5c35862a93..1c2382cea807b5431d638b23451a1994bad7e50e 100644 (file)
@@ -70,10 +70,16 @@ extern void sn_irq_fixup(struct pci_dev *pci_dev,
                         struct sn_irq_info *sn_irq_info);
 extern void sn_irq_unfixup(struct pci_dev *pci_dev);
 extern struct pcidev_info * sn_pcidev_info_get(struct pci_dev *);
+extern void sn_bus_fixup(struct pci_bus *);
+extern void sn_acpi_bus_fixup(struct pci_bus *);
+extern void sn_common_bus_fixup(struct pci_bus *, struct pcibus_bussoft *);
 extern void sn_bus_store_sysdata(struct pci_dev *dev);
 extern void sn_bus_free_sysdata(void);
 extern void sn_generate_path(struct pci_bus *pci_bus, char *address);
-extern void sn_pci_fixup_slot(struct pci_dev *dev);
+extern void sn_io_slot_fixup(struct pci_dev *);
+extern void sn_acpi_slot_fixup(struct pci_dev *);
+extern void sn_pci_fixup_slot(struct pci_dev *dev, struct pcidev_info *,
+                             struct sn_irq_info *);
 extern void sn_pci_unfixup_slot(struct pci_dev *dev);
 extern void sn_irq_lh_init(void);
 #endif                         /* _ASM_IA64_SN_PCI_PCIDEV_H */