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-rw-r--r--arch/ia64/sn/kernel/io_init.c308
1 files changed, 0 insertions, 308 deletions
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
deleted file mode 100644
index d63809a6adfa..000000000000
--- a/arch/ia64/sn/kernel/io_init.c
+++ /dev/null
@@ -1,308 +0,0 @@
-/*
- * 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.
- *
- * Copyright (C) 1992 - 1997, 2000-2006 Silicon Graphics, Inc. All rights reserved.
- */
-
-#include <linux/slab.h>
-#include <linux/export.h>
-#include <asm/sn/types.h>
-#include <asm/sn/addrs.h>
-#include <asm/sn/io.h>
-#include <asm/sn/module.h>
-#include <asm/sn/intr.h>
-#include <asm/sn/pcibus_provider_defs.h>
-#include <asm/sn/pcidev.h>
-#include <asm/sn/sn_sal.h>
-#include "xtalk/hubdev.h"
-
-/*
- * The code in this file will only be executed when running with
- * a PROM that does _not_ have base ACPI IO support.
- * (i.e., SN_ACPI_BASE_SUPPORT() == 0)
- */
-
-static int max_segment_number; /* Default highest segment number */
-static int max_pcibus_number = 255; /* Default highest pci bus number */
-
-
-/*
- * Retrieve the hub device info structure for the given nasid.
- */
-static inline u64 sal_get_hubdev_info(u64 handle, u64 address)
-{
- struct ia64_sal_retval ret_stuff;
- ret_stuff.status = 0;
- ret_stuff.v0 = 0;
-
- SAL_CALL_NOLOCK(ret_stuff,
- (u64) SN_SAL_IOIF_GET_HUBDEV_INFO,
- (u64) handle, (u64) address, 0, 0, 0, 0, 0);
- return ret_stuff.v0;
-}
-
-/*
- * Retrieve the pci bus information given the bus number.
- */
-static inline u64 sal_get_pcibus_info(u64 segment, u64 busnum, u64 address)
-{
- struct ia64_sal_retval ret_stuff;
- ret_stuff.status = 0;
- ret_stuff.v0 = 0;
-
- SAL_CALL_NOLOCK(ret_stuff,
- (u64) SN_SAL_IOIF_GET_PCIBUS_INFO,
- (u64) segment, (u64) busnum, (u64) address, 0, 0, 0, 0);
- 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
- * each node in the system. This function is only
- * executed when running with a non-ACPI capable PROM.
- */
-static void __init sn_fixup_ionodes(void)
-{
-
- struct hubdev_info *hubdev;
- u64 status;
- u64 nasid;
- int i;
- extern void sn_common_hubdev_init(struct hubdev_info *);
-
- /*
- * Get SGI Specific HUB chipset information.
- * Inform Prom that this kernel can support domain bus numbering.
- */
- for (i = 0; i < num_cnodes; i++) {
- hubdev = (struct hubdev_info *)(NODEPDA(i)->pdinfo);
- nasid = cnodeid_to_nasid(i);
- hubdev->max_segment_number = 0xffffffff;
- hubdev->max_pcibus_number = 0xff;
- status = sal_get_hubdev_info(nasid, (u64) __pa(hubdev));
- if (status)
- continue;
-
- /* Save the largest Domain and pcibus numbers found. */
- if (hubdev->max_segment_number) {
- /*
- * Dealing with a Prom that supports segments.
- */
- max_segment_number = hubdev->max_segment_number;
- max_pcibus_number = hubdev->max_pcibus_number;
- }
- sn_common_hubdev_init(hubdev);
- }
-}
-
-/*
- * sn_pci_legacy_window_fixup - Setup PCI resources for
- * legacy IO and MEM space. This needs to
- * be done here, as the PROM does not have
- * ACPI support defining the root buses
- * and their resources (_CRS),
- */
-static void
-sn_legacy_pci_window_fixup(struct resource *res,
- u64 legacy_io, u64 legacy_mem)
-{
- res[0].name = "legacy_io";
- res[0].flags = IORESOURCE_IO;
- res[0].start = legacy_io;
- res[0].end = res[0].start + 0xffff;
- res[0].parent = &ioport_resource;
- res[1].name = "legacy_mem";
- res[1].flags = IORESOURCE_MEM;
- res[1].start = legacy_mem;
- res[1].end = res[1].start + (1024 * 1024) - 1;
- res[1].parent = &iomem_resource;
-}
-
-/*
- * 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_io_slot_fixup(struct pci_dev *dev)
-{
- int idx;
- struct resource *res;
- unsigned long size;
- 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", __func__);
-
- 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", __func__);
-
- /* 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));
-
- BUG_ON(status); /* Cannot get platform pci device information */
-
-
- /* Copy over PIO Mapped Addresses */
- for (idx = 0; idx <= PCI_ROM_RESOURCE; idx++) {
- if (!pcidev_info->pdi_pio_mapped_addr[idx])
- continue;
-
- res = &dev->resource[idx];
-
- size = res->end - res->start;
- if (size == 0)
- continue;
-
- res->start = pcidev_info->pdi_pio_mapped_addr[idx];
- res->end = res->start + size;
-
- /*
- * if it's already in the device structure, remove it before
- * inserting
- */
- if (res->parent && res->parent->child)
- release_resource(res);
-
- if (res->flags & IORESOURCE_IO)
- insert_resource(&ioport_resource, res);
- else
- insert_resource(&iomem_resource, res);
- /*
- * If ROM, mark as shadowed in PROM.
- */
- if (idx == PCI_ROM_RESOURCE) {
- pci_disable_rom(dev);
- res->flags = IORESOURCE_MEM | IORESOURCE_ROM_SHADOW |
- IORESOURCE_PCI_FIXED;
- }
- }
-
- 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.
- */
-static void __init
-sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
-{
- s64 status = 0;
- struct pci_controller *controller;
- struct pcibus_bussoft *prom_bussoft_ptr;
- struct resource *res;
- LIST_HEAD(resources);
-
- status = sal_get_pcibus_info((u64) segment, (u64) busnum,
- (u64) ia64_tpa(&prom_bussoft_ptr));
- if (status > 0)
- return; /*bus # does not exist */
- prom_bussoft_ptr = __va(prom_bussoft_ptr);
-
- controller = kzalloc(sizeof(*controller), GFP_KERNEL);
- BUG_ON(!controller);
- controller->segment = segment;
-
- res = kcalloc(2, sizeof(struct resource), GFP_KERNEL);
- BUG_ON(!res);
-
- /*
- * Temporarily save the prom_bussoft_ptr for use by sn_bus_fixup().
- * (platform_data will be overwritten later in sn_common_bus_fixup())
- */
- controller->platform_data = prom_bussoft_ptr;
-
- sn_legacy_pci_window_fixup(res,
- prom_bussoft_ptr->bs_legacy_io,
- prom_bussoft_ptr->bs_legacy_mem);
- pci_add_resource_offset(&resources, &res[0],
- prom_bussoft_ptr->bs_legacy_io);
- pci_add_resource_offset(&resources, &res[1],
- prom_bussoft_ptr->bs_legacy_mem);
-
- bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, controller,
- &resources);
- if (bus == NULL) {
- kfree(res);
- kfree(controller);
- return;
- }
- pci_bus_add_devices(bus);
-}
-
-/*
- * sn_bus_fixup
- */
-void
-sn_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 = PCI_CONTROLLER(bus)->platform_data;
- if (prom_bussoft_ptr == NULL) {
- printk(KERN_ERR
- "sn_bus_fixup: 0x%04x:0x%02x Unable to "
- "obtain prom_bussoft_ptr\n",
- 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_io_slot_fixup(pci_dev);
- }
-
-}
-
-/*
- * sn_io_init - PROM does not have ACPI support to define nodes or root buses,
- * so we need to do things the hard way, including initiating the
- * bus scanning ourselves.
- */
-
-void __init sn_io_init(void)
-{
- int i, j;
-
- sn_fixup_ionodes();
-
- /* busses are not known yet ... */
- for (i = 0; i <= max_segment_number; i++)
- for (j = 0; j <= max_pcibus_number; j++)
- sn_pci_controller_fixup(i, j, NULL);
-}