aboutsummaryrefslogtreecommitdiffstats
path: root/arch/ia64/sn/kernel/io_common.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ia64/sn/kernel/io_common.c')
-rw-r--r--arch/ia64/sn/kernel/io_common.c561
1 files changed, 0 insertions, 561 deletions
diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c
deleted file mode 100644
index d46847323ef6..000000000000
--- a/arch/ia64/sn/kernel/io_common.c
+++ /dev/null
@@ -1,561 +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) 2006 Silicon Graphics, Inc. All rights reserved.
- */
-
-#include <linux/memblock.h>
-#include <linux/export.h>
-#include <linux/slab.h>
-#include <asm/sn/types.h>
-#include <asm/sn/addrs.h>
-#include <asm/sn/sn_feature_sets.h>
-#include <asm/sn/geo.h>
-#include <asm/sn/io.h>
-#include <asm/sn/l1.h>
-#include <asm/sn/module.h>
-#include <asm/sn/pcibr_provider.h>
-#include <asm/sn/pcibus_provider_defs.h>
-#include <asm/sn/pcidev.h>
-#include <asm/sn/simulator.h>
-#include <asm/sn/sn_sal.h>
-#include <asm/sn/tioca_provider.h>
-#include <asm/sn/tioce_provider.h>
-#include "xtalk/hubdev.h"
-#include "xtalk/xwidgetdev.h"
-#include <linux/acpi.h>
-#include <asm/sn/sn2/sn_hwperf.h>
-#include <asm/sn/acpi.h>
-
-extern void sn_init_cpei_timer(void);
-extern void register_sn_procfs(void);
-extern void sn_io_acpi_init(void);
-extern void sn_io_init(void);
-
-
-static struct list_head sn_sysdata_list;
-
-/* sysdata list struct */
-struct sysdata_el {
- struct list_head entry;
- void *sysdata;
-};
-
-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 */
-
-/*
- * Hooks and struct for unsupported pci providers
- */
-
-static dma_addr_t
-sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size, int type)
-{
- return 0;
-}
-
-static void
-sn_default_pci_unmap(struct pci_dev *pdev, dma_addr_t addr, int direction)
-{
- return;
-}
-
-static void *
-sn_default_pci_bus_fixup(struct pcibus_bussoft *soft, struct pci_controller *controller)
-{
- return NULL;
-}
-
-static struct sn_pcibus_provider sn_pci_default_provider = {
- .dma_map = sn_default_pci_map,
- .dma_map_consistent = sn_default_pci_map,
- .dma_unmap = sn_default_pci_unmap,
- .bus_fixup = sn_default_pci_bus_fixup,
-};
-
-/*
- * Retrieve the DMA Flush List given nasid, widget, and device.
- * This list is needed to implement the WAR - Flush DMA data on PIO Reads.
- */
-static inline u64
-sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num,
- 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_DEVICE_DMAFLUSH_LIST,
- (u64) nasid, (u64) widget_num,
- (u64) device_num, (u64) address, 0, 0, 0);
- return ret_stuff.status;
-}
-
-/*
- * sn_pcidev_info_get() - Retrieve the pcidev_info struct for the specified
- * device.
- */
-inline struct pcidev_info *
-sn_pcidev_info_get(struct pci_dev *dev)
-{
- struct pcidev_info *pcidev;
-
- list_for_each_entry(pcidev,
- &(SN_PLATFORM_DATA(dev)->pcidev_info), pdi_list) {
- if (pcidev->pdi_linux_pcidev == dev)
- return pcidev;
- }
- return NULL;
-}
-
-/* Older PROM flush WAR
- *
- * 01/16/06 -- This war will be in place until a new official PROM is released.
- * Additionally note that the struct sn_flush_device_war also has to be
- * removed from arch/ia64/sn/include/xtalk/hubdev.h
- */
-
-static s64 sn_device_fixup_war(u64 nasid, u64 widget, int device,
- struct sn_flush_device_common *common)
-{
- struct sn_flush_device_war *war_list;
- struct sn_flush_device_war *dev_entry;
- struct ia64_sal_retval isrv = {0,0,0,0};
-
- printk_once(KERN_WARNING
- "PROM version < 4.50 -- implementing old PROM flush WAR\n");
-
- war_list = kcalloc(DEV_PER_WIDGET, sizeof(*war_list), GFP_KERNEL);
- BUG_ON(!war_list);
-
- SAL_CALL_NOLOCK(isrv, SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST,
- nasid, widget, __pa(war_list), 0, 0, 0 ,0);
- if (isrv.status)
- panic("sn_device_fixup_war failed: %s\n",
- ia64_sal_strerror(isrv.status));
-
- dev_entry = war_list + device;
- memcpy(common,dev_entry, sizeof(*common));
- kfree(war_list);
-
- return isrv.status;
-}
-
-/*
- * sn_common_hubdev_init() - This routine is called to initialize the HUB data
- * structure for each node in the system.
- */
-void __init
-sn_common_hubdev_init(struct hubdev_info *hubdev)
-{
-
- struct sn_flush_device_kernel *sn_flush_device_kernel;
- struct sn_flush_device_kernel *dev_entry;
- s64 status;
- int widget, device, size;
-
- /* Attach the error interrupt handlers */
- if (hubdev->hdi_nasid & 1) /* If TIO */
- ice_error_init(hubdev);
- else
- hub_error_init(hubdev);
-
- for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++)
- hubdev->hdi_xwidget_info[widget].xwi_hubinfo = hubdev;
-
- if (!hubdev->hdi_flush_nasid_list.widget_p)
- return;
-
- size = (HUB_WIDGET_ID_MAX + 1) *
- sizeof(struct sn_flush_device_kernel *);
- hubdev->hdi_flush_nasid_list.widget_p =
- kzalloc(size, GFP_KERNEL);
- BUG_ON(!hubdev->hdi_flush_nasid_list.widget_p);
-
- for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) {
- size = DEV_PER_WIDGET *
- sizeof(struct sn_flush_device_kernel);
- sn_flush_device_kernel = kzalloc(size, GFP_KERNEL);
- BUG_ON(!sn_flush_device_kernel);
-
- dev_entry = sn_flush_device_kernel;
- for (device = 0; device < DEV_PER_WIDGET;
- device++, dev_entry++) {
- size = sizeof(struct sn_flush_device_common);
- dev_entry->common = kzalloc(size, GFP_KERNEL);
- BUG_ON(!dev_entry->common);
- if (sn_prom_feature_available(PRF_DEVICE_FLUSH_LIST))
- status = sal_get_device_dmaflush_list(
- hubdev->hdi_nasid, widget, device,
- (u64)(dev_entry->common));
- else
- status = sn_device_fixup_war(hubdev->hdi_nasid,
- widget, device,
- dev_entry->common);
- if (status != SALRET_OK)
- panic("SAL call failed: %s\n",
- ia64_sal_strerror(status));
-
- spin_lock_init(&dev_entry->sfdl_flush_lock);
- }
-
- if (sn_flush_device_kernel)
- hubdev->hdi_flush_nasid_list.widget_p[widget] =
- sn_flush_device_kernel;
- }
-}
-
-void sn_pci_unfixup_slot(struct pci_dev *dev)
-{
- struct pci_dev *host_pci_dev = SN_PCIDEV_INFO(dev)->host_pci_dev;
-
- sn_irq_unfixup(dev);
- pci_dev_put(host_pci_dev);
- pci_dev_put(dev);
-}
-
-/*
- * sn_pci_fixup_slot()
- */
-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);
- struct pcibus_bussoft *bs;
- struct pci_dev *host_pci_dev;
- unsigned int bus_no, devfn;
-
- pci_dev_get(dev); /* for the sysdata pointer */
-
- /* Add pcidev_info to list in pci_controller.platform_data */
- list_add_tail(&pcidev_info->pdi_list,
- &(SN_PLATFORM_DATA(dev->bus)->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
- */
-
- bus_no = (pcidev_info->pdi_slot_host_handle >> 32) & 0xff;
- devfn = pcidev_info->pdi_slot_host_handle & 0xffffffff;
- host_pci_dev = pci_get_domain_bus_and_slot(segment, bus_no, devfn);
-
- pcidev_info->host_pci_dev = host_pci_dev;
- pcidev_info->pdi_linux_pcidev = dev;
- pcidev_info->pdi_host_pcidev_info = SN_PCIDEV_INFO(host_pci_dev);
- bs = SN_PCIBUS_BUSSOFT(dev->bus);
- pcidev_info->pdi_pcibus_info = bs;
-
- if (bs && bs->bs_asic_type < PCIIO_ASIC_MAX_TYPES) {
- SN_PCIDEV_BUSPROVIDER(dev) = sn_pci_provider[bs->bs_asic_type];
- } else {
- SN_PCIDEV_BUSPROVIDER(dev) = &sn_pci_default_provider;
- }
-
- /* Only set up IRQ stuff if this device has a host bus context */
- if (bs && sn_irq_info->irq_irq) {
- pcidev_info->pdi_sn_irq_info = sn_irq_info;
- dev->irq = pcidev_info->pdi_sn_irq_info->irq_irq;
- sn_irq_fixup(dev, sn_irq_info);
- } else {
- pcidev_info->pdi_sn_irq_info = NULL;
- kfree(sn_irq_info);
- }
-}
-
-/*
- * sn_common_bus_fixup - Perform platform specific bus fixup.
- * Execute the ASIC specific fixup routine
- * for this bus.
- */
-void
-sn_common_bus_fixup(struct pci_bus *bus,
- struct pcibus_bussoft *prom_bussoft_ptr)
-{
- int cnode;
- struct pci_controller *controller;
- struct hubdev_info *hubdev_info;
- int nasid;
- void *provider_soft;
- struct sn_pcibus_provider *provider;
- struct sn_platform_data *sn_platform_data;
-
- controller = PCI_CONTROLLER(bus);
- /*
- * Per-provider fixup. Copies the bus soft structure from prom
- * to local area and links SN_PCIBUS_BUSSOFT().
- */
-
- if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES) {
- printk(KERN_WARNING "sn_common_bus_fixup: Unsupported asic type, %d",
- prom_bussoft_ptr->bs_asic_type);
- return;
- }
-
- if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB)
- return; /* no further fixup necessary */
-
- provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type];
- if (provider == NULL)
- panic("sn_common_bus_fixup: No provider registered for this asic type, %d",
- prom_bussoft_ptr->bs_asic_type);
-
- if (provider->bus_fixup)
- provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr,
- controller);
- else
- provider_soft = NULL;
-
- /*
- * Generic bus fixup goes here. Don't reference prom_bussoft_ptr
- * after this point.
- */
- controller->platform_data = kzalloc(sizeof(struct sn_platform_data),
- GFP_KERNEL);
- BUG_ON(controller->platform_data == NULL);
- sn_platform_data =
- (struct sn_platform_data *) controller->platform_data;
- sn_platform_data->provider_soft = provider_soft;
- INIT_LIST_HEAD(&((struct sn_platform_data *)
- controller->platform_data)->pcidev_info);
- nasid = NASID_GET(SN_PCIBUS_BUSSOFT(bus)->bs_base);
- cnode = nasid_to_cnodeid(nasid);
- hubdev_info = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
- SN_PCIBUS_BUSSOFT(bus)->bs_xwidget_info =
- &(hubdev_info->hdi_xwidget_info[SN_PCIBUS_BUSSOFT(bus)->bs_xid]);
-
- /*
- * If the node information we obtained during the fixup phase is
- * invalid then set controller->node to -1 (undetermined)
- */
- if (controller->node >= num_online_nodes()) {
- struct pcibus_bussoft *b = SN_PCIBUS_BUSSOFT(bus);
-
- printk(KERN_WARNING "Device ASIC=%u XID=%u PBUSNUM=%u "
- "L_IO=%llx L_MEM=%llx BASE=%llx\n",
- b->bs_asic_type, b->bs_xid, b->bs_persist_busnum,
- b->bs_legacy_io, b->bs_legacy_mem, b->bs_base);
- printk(KERN_WARNING "on node %d but only %d nodes online."
- "Association set to undetermined.\n",
- controller->node, num_online_nodes());
- controller->node = -1;
- }
-}
-
-void sn_bus_store_sysdata(struct pci_dev *dev)
-{
- struct sysdata_el *element;
-
- element = kzalloc(sizeof(struct sysdata_el), GFP_KERNEL);
- if (!element) {
- dev_dbg(&dev->dev, "%s: out of memory!\n", __func__);
- return;
- }
- element->sysdata = SN_PCIDEV_INFO(dev);
- list_add(&element->entry, &sn_sysdata_list);
-}
-
-void sn_bus_free_sysdata(void)
-{
- struct sysdata_el *element;
- struct list_head *list, *safe;
-
- list_for_each_safe(list, safe, &sn_sysdata_list) {
- element = list_entry(list, struct sysdata_el, entry);
- list_del(&element->entry);
- list_del(&(((struct pcidev_info *)
- (element->sysdata))->pdi_list));
- kfree(element->sysdata);
- kfree(element);
- }
- return;
-}
-
-/*
- * hubdev_init_node() - Creates the HUB data structure and link them to it's
- * own NODE specific data area.
- */
-void __init hubdev_init_node(nodepda_t * npda, cnodeid_t node)
-{
- struct hubdev_info *hubdev_info;
- int size;
-
- size = sizeof(struct hubdev_info);
-
- if (node >= num_online_nodes()) /* Headless/memless IO nodes */
- node = 0;
-
- hubdev_info = (struct hubdev_info *)memblock_alloc_node(size,
- SMP_CACHE_BYTES,
- node);
- if (!hubdev_info)
- panic("%s: Failed to allocate %d bytes align=0x%x nid=%d\n",
- __func__, size, SMP_CACHE_BYTES, node);
-
- npda->pdinfo = (void *)hubdev_info;
-}
-
-geoid_t
-cnodeid_get_geoid(cnodeid_t cnode)
-{
- struct hubdev_info *hubdev;
-
- hubdev = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
- return hubdev->hdi_geoid;
-}
-
-void sn_generate_path(struct pci_bus *pci_bus, char *address)
-{
- nasid_t nasid;
- cnodeid_t cnode;
- geoid_t geoid;
- moduleid_t moduleid;
- u16 bricktype;
-
- nasid = NASID_GET(SN_PCIBUS_BUSSOFT(pci_bus)->bs_base);
- cnode = nasid_to_cnodeid(nasid);
- geoid = cnodeid_get_geoid(cnode);
- moduleid = geo_module(geoid);
-
- sprintf(address, "module_%c%c%c%c%.2d",
- '0'+RACK_GET_CLASS(MODULE_GET_RACK(moduleid)),
- '0'+RACK_GET_GROUP(MODULE_GET_RACK(moduleid)),
- '0'+RACK_GET_NUM(MODULE_GET_RACK(moduleid)),
- MODULE_GET_BTCHAR(moduleid), MODULE_GET_BPOS(moduleid));
-
- /* Tollhouse requires slot id to be displayed */
- bricktype = MODULE_GET_BTYPE(moduleid);
- if ((bricktype == L1_BRICKTYPE_191010) ||
- (bricktype == L1_BRICKTYPE_1932))
- sprintf(address + strlen(address), "^%d",
- geo_slot(geoid));
-}
-
-void sn_pci_fixup_bus(struct pci_bus *bus)
-{
-
- if (SN_ACPI_BASE_SUPPORT())
- sn_acpi_bus_fixup(bus);
- else
- sn_bus_fixup(bus);
-}
-
-/*
- * sn_io_early_init - Perform early IO (and some non-IO) initialization.
- * In particular, setup the sn_pci_provider[] array.
- * This needs to be done prior to any bus scanning
- * (acpi_scan_init()) in the ACPI case, as the SN
- * bus fixup code will reference the array.
- */
-static int __init
-sn_io_early_init(void)
-{
- int i;
-
- 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(ACPI_SIG_DSDT, 1, &header);
- BUG_ON(header == NULL);
- sn_acpi_rev = header->oem_revision;
- }
-
- /*
- * prime sn_pci_provider[]. Individual provider init routines will
- * override their respective default entries.
- */
-
- for (i = 0; i < PCIIO_ASIC_MAX_TYPES; i++)
- sn_pci_provider[i] = &sn_pci_default_provider;
-
- pcibr_init_provider();
- tioca_init_provider();
- tioce_init_provider();
-
- sn_irq_lh_init();
- INIT_LIST_HEAD(&sn_sysdata_list);
- sn_init_cpei_timer();
-
-#ifdef CONFIG_PROC_FS
- register_sn_procfs();
-#endif
-
- {
- struct acpi_table_header *header;
- (void)acpi_get_table(ACPI_SIG_DSDT, 1, &header);
- printk(KERN_INFO "ACPI DSDT OEM Rev 0x%x\n",
- header->oem_revision);
- }
- if (SN_ACPI_BASE_SUPPORT())
- sn_io_acpi_init();
- else
- sn_io_init();
- return 0;
-}
-
-arch_initcall(sn_io_early_init);
-
-/*
- * sn_io_late_init() - Perform any final platform specific IO initialization.
- */
-
-int __init
-sn_io_late_init(void)
-{
- struct pci_bus *bus;
- struct pcibus_bussoft *bussoft;
- cnodeid_t cnode;
- nasid_t nasid;
- cnodeid_t near_cnode;
-
- if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM())
- return 0;
-
- /*
- * Setup closest node in pci_controller->node for
- * PIC, TIOCP, TIOCE (TIOCA does it during bus fixup using
- * info from the PROM).
- */
- bus = NULL;
- while ((bus = pci_find_next_bus(bus)) != NULL) {
- bussoft = SN_PCIBUS_BUSSOFT(bus);
- nasid = NASID_GET(bussoft->bs_base);
- cnode = nasid_to_cnodeid(nasid);
- if ((bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP) ||
- (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCE) ||
- (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_PIC)) {
- /* PCI Bridge: find nearest node with CPUs */
- int e = sn_hwperf_get_nearest_node(cnode, NULL,
- &near_cnode);
- if (e < 0) {
- near_cnode = (cnodeid_t)-1; /* use any node */
- printk(KERN_WARNING "sn_io_late_init: failed "
- "to find near node with CPUs for "
- "node %d, err=%d\n", cnode, e);
- }
- PCI_CONTROLLER(bus)->node = near_cnode;
- }
- }
-
- sn_ioif_inited = 1; /* SN I/O infrastructure now initialized */
-
- return 0;
-}
-
-fs_initcall(sn_io_late_init);
-
-EXPORT_SYMBOL(sn_pci_unfixup_slot);
-EXPORT_SYMBOL(sn_bus_store_sysdata);
-EXPORT_SYMBOL(sn_bus_free_sysdata);
-EXPORT_SYMBOL(sn_generate_path);
-
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.