2005-04-16 22:20:36 +00:00
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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2005-11-29 22:36:32 +00:00
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* Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
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2005-04-16 22:20:36 +00:00
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*/
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#include <linux/bootmem.h>
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#include <linux/nodemask.h>
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#include <asm/sn/types.h>
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#include <asm/sn/addrs.h>
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2006-01-25 23:51:14 +00:00
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#include <asm/sn/sn_feature_sets.h>
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2005-04-16 22:20:36 +00:00
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#include <asm/sn/geo.h>
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#include <asm/sn/io.h>
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2005-07-06 22:26:51 +00:00
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#include <asm/sn/pcibr_provider.h>
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#include <asm/sn/pcibus_provider_defs.h>
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#include <asm/sn/pcidev.h>
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2005-04-16 22:20:36 +00:00
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#include <asm/sn/simulator.h>
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2005-07-06 22:26:51 +00:00
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#include <asm/sn/sn_sal.h>
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2005-04-25 18:35:54 +00:00
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#include <asm/sn/tioca_provider.h>
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2005-08-03 21:07:00 +00:00
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#include <asm/sn/tioce_provider.h>
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2005-07-06 22:26:51 +00:00
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#include "xtalk/hubdev.h"
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#include "xtalk/xwidgetdev.h"
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2005-04-16 22:20:36 +00:00
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2005-07-06 22:29:53 +00:00
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static struct list_head sn_sysdata_list;
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/* sysdata list struct */
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struct sysdata_el {
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struct list_head entry;
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void *sysdata;
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};
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2005-04-16 22:20:36 +00:00
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struct slab_info {
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struct hubdev_info hubdev;
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};
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struct brick {
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moduleid_t id; /* Module ID of this module */
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struct slab_info slab_info[MAX_SLABS + 1];
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};
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int sn_ioif_inited = 0; /* SN I/O infrastructure initialized? */
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2005-04-25 18:26:03 +00:00
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struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES]; /* indexed by asic type */
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2005-08-03 20:35:00 +00:00
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static int max_segment_number = 0; /* Default highest segment number */
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static int max_pcibus_number = 255; /* Default highest pci bus number */
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2005-04-25 18:26:03 +00:00
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/*
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* Hooks and struct for unsupported pci providers
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*/
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static dma_addr_t
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sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size)
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{
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return 0;
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}
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static void
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sn_default_pci_unmap(struct pci_dev *pdev, dma_addr_t addr, int direction)
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{
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return;
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}
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static void *
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2005-07-12 23:03:00 +00:00
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sn_default_pci_bus_fixup(struct pcibus_bussoft *soft, struct pci_controller *controller)
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2005-04-25 18:26:03 +00:00
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{
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return NULL;
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}
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static struct sn_pcibus_provider sn_pci_default_provider = {
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.dma_map = sn_default_pci_map,
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.dma_map_consistent = sn_default_pci_map,
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.dma_unmap = sn_default_pci_unmap,
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.bus_fixup = sn_default_pci_bus_fixup,
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};
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2005-04-16 22:20:36 +00:00
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/*
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2005-12-23 18:33:25 +00:00
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* Retrieve the DMA Flush List given nasid, widget, and device.
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* This list is needed to implement the WAR - Flush DMA data on PIO Reads.
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2005-04-16 22:20:36 +00:00
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*/
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2005-12-23 18:33:25 +00:00
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static inline u64
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sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num,
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u64 address)
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2005-04-16 22:20:36 +00:00
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{
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struct ia64_sal_retval ret_stuff;
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ret_stuff.status = 0;
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ret_stuff.v0 = 0;
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SAL_CALL_NOLOCK(ret_stuff,
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2005-12-23 18:33:25 +00:00
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(u64) SN_SAL_IOIF_GET_DEVICE_DMAFLUSH_LIST,
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(u64) nasid, (u64) widget_num,
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(u64) device_num, (u64) address, 0, 0, 0);
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return ret_stuff.status;
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2005-04-16 22:20:36 +00:00
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}
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/*
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* Retrieve the hub device info structure for the given nasid.
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*/
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2005-12-23 18:33:25 +00:00
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static inline u64 sal_get_hubdev_info(u64 handle, u64 address)
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2005-04-16 22:20:36 +00:00
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{
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struct ia64_sal_retval ret_stuff;
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ret_stuff.status = 0;
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ret_stuff.v0 = 0;
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SAL_CALL_NOLOCK(ret_stuff,
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(u64) SN_SAL_IOIF_GET_HUBDEV_INFO,
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(u64) handle, (u64) address, 0, 0, 0, 0, 0);
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return ret_stuff.v0;
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}
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/*
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* Retrieve the pci bus information given the bus number.
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*/
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2005-12-23 18:33:25 +00:00
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static inline u64 sal_get_pcibus_info(u64 segment, u64 busnum, u64 address)
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2005-04-16 22:20:36 +00:00
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{
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struct ia64_sal_retval ret_stuff;
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ret_stuff.status = 0;
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ret_stuff.v0 = 0;
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SAL_CALL_NOLOCK(ret_stuff,
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(u64) SN_SAL_IOIF_GET_PCIBUS_INFO,
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(u64) segment, (u64) busnum, (u64) address, 0, 0, 0, 0);
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return ret_stuff.v0;
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}
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/*
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* Retrieve the pci device information given the bus and device|function number.
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*/
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2005-12-23 18:33:25 +00:00
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static inline u64
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2006-01-17 03:54:40 +00:00
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sal_get_pcidev_info(u64 segment, u64 bus_number, u64 devfn, u64 pci_dev,
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u64 sn_irq_info)
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2005-04-16 22:20:36 +00:00
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{
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struct ia64_sal_retval ret_stuff;
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ret_stuff.status = 0;
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ret_stuff.v0 = 0;
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SAL_CALL_NOLOCK(ret_stuff,
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(u64) SN_SAL_IOIF_GET_PCIDEV_INFO,
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2006-01-17 03:54:40 +00:00
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(u64) segment, (u64) bus_number, (u64) devfn,
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2005-04-16 22:20:36 +00:00
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(u64) pci_dev,
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sn_irq_info, 0, 0);
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return ret_stuff.v0;
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}
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2005-11-29 22:36:32 +00:00
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/*
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* sn_pcidev_info_get() - Retrieve the pcidev_info struct for the specified
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* device.
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*/
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inline struct pcidev_info *
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sn_pcidev_info_get(struct pci_dev *dev)
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{
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struct pcidev_info *pcidev;
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list_for_each_entry(pcidev,
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&(SN_PCI_CONTROLLER(dev)->pcidev_info), pdi_list) {
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if (pcidev->pdi_linux_pcidev == dev) {
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return pcidev;
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}
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}
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return NULL;
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}
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2006-01-16 20:31:52 +00:00
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/* Older PROM flush WAR
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*
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* 01/16/06 -- This war will be in place until a new official PROM is released.
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* Additionally note that the struct sn_flush_device_war also has to be
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* removed from arch/ia64/sn/include/xtalk/hubdev.h
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*/
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static u8 war_implemented = 0;
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2006-01-25 23:51:14 +00:00
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static s64 sn_device_fixup_war(u64 nasid, u64 widget, int device,
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struct sn_flush_device_common *common)
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2006-01-16 20:31:52 +00:00
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{
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struct sn_flush_device_war *war_list;
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struct sn_flush_device_war *dev_entry;
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struct ia64_sal_retval isrv = {0,0,0,0};
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if (!war_implemented) {
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printk(KERN_WARNING "PROM version < 4.50 -- implementing old "
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"PROM flush WAR\n");
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war_implemented = 1;
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}
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war_list = kzalloc(DEV_PER_WIDGET * sizeof(*war_list), GFP_KERNEL);
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if (!war_list)
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BUG();
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SAL_CALL_NOLOCK(isrv, SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST,
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nasid, widget, __pa(war_list), 0, 0, 0 ,0);
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if (isrv.status)
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panic("sn_device_fixup_war failed: %s\n",
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ia64_sal_strerror(isrv.status));
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dev_entry = war_list + device;
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memcpy(common,dev_entry, sizeof(*common));
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kfree(war_list);
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2006-01-25 23:51:14 +00:00
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return isrv.status;
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2006-01-16 20:31:52 +00:00
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}
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2005-04-16 22:20:36 +00:00
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/*
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2006-01-16 20:31:52 +00:00
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* sn_fixup_ionodes() - This routine initializes the HUB data strcuture for
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2005-04-16 22:20:36 +00:00
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* each node in the system.
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*/
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2006-02-02 10:15:51 +00:00
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static void __init sn_fixup_ionodes(void)
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2005-04-16 22:20:36 +00:00
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{
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2005-12-23 18:33:25 +00:00
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struct sn_flush_device_kernel *sn_flush_device_kernel;
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struct sn_flush_device_kernel *dev_entry;
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2005-04-16 22:20:36 +00:00
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struct hubdev_info *hubdev;
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2005-12-23 18:33:25 +00:00
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u64 status;
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u64 nasid;
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int i, widget, device;
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2005-04-16 22:20:36 +00:00
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2005-08-03 20:35:00 +00:00
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/*
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* Get SGI Specific HUB chipset information.
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* Inform Prom that this kernel can support domain bus numbering.
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*/
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2005-09-12 17:15:43 +00:00
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for (i = 0; i < num_cnodes; i++) {
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2005-04-16 22:20:36 +00:00
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hubdev = (struct hubdev_info *)(NODEPDA(i)->pdinfo);
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nasid = cnodeid_to_nasid(i);
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2005-08-03 20:35:00 +00:00
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hubdev->max_segment_number = 0xffffffff;
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hubdev->max_pcibus_number = 0xff;
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2005-12-23 18:33:25 +00:00
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status = sal_get_hubdev_info(nasid, (u64) __pa(hubdev));
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2005-04-16 22:20:36 +00:00
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if (status)
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continue;
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2005-08-03 20:35:00 +00:00
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/* Save the largest Domain and pcibus numbers found. */
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if (hubdev->max_segment_number) {
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/*
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* Dealing with a Prom that supports segments.
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*/
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max_segment_number = hubdev->max_segment_number;
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max_pcibus_number = hubdev->max_pcibus_number;
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}
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2005-03-18 23:38:00 +00:00
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/* Attach the error interrupt handlers */
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if (nasid & 1)
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ice_error_init(hubdev);
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else
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hub_error_init(hubdev);
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2005-04-16 22:20:36 +00:00
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for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++)
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hubdev->hdi_xwidget_info[widget].xwi_hubinfo = hubdev;
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if (!hubdev->hdi_flush_nasid_list.widget_p)
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continue;
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hubdev->hdi_flush_nasid_list.widget_p =
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kmalloc((HUB_WIDGET_ID_MAX + 1) *
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2005-12-23 18:33:25 +00:00
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sizeof(struct sn_flush_device_kernel *),
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GFP_KERNEL);
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2005-04-16 22:20:36 +00:00
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memset(hubdev->hdi_flush_nasid_list.widget_p, 0x0,
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(HUB_WIDGET_ID_MAX + 1) *
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2005-12-23 18:33:25 +00:00
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sizeof(struct sn_flush_device_kernel *));
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2005-04-16 22:20:36 +00:00
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for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) {
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2005-12-23 18:33:25 +00:00
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sn_flush_device_kernel = kmalloc(DEV_PER_WIDGET *
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sizeof(struct
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sn_flush_device_kernel),
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GFP_KERNEL);
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if (!sn_flush_device_kernel)
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BUG();
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memset(sn_flush_device_kernel, 0x0,
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2005-04-16 22:20:36 +00:00
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DEV_PER_WIDGET *
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2005-12-23 18:33:25 +00:00
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sizeof(struct sn_flush_device_kernel));
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dev_entry = sn_flush_device_kernel;
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for (device = 0; device < DEV_PER_WIDGET;
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device++,dev_entry++) {
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dev_entry->common = kmalloc(sizeof(struct
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sn_flush_device_common),
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GFP_KERNEL);
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if (!dev_entry->common)
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BUG();
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memset(dev_entry->common, 0x0, sizeof(struct
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sn_flush_device_common));
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2006-01-25 23:51:14 +00:00
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if (sn_prom_feature_available(
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PRF_DEVICE_FLUSH_LIST))
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status = sal_get_device_dmaflush_list(
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nasid,
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widget,
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device,
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2005-12-23 18:33:25 +00:00
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(u64)(dev_entry->common));
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2006-01-25 23:51:14 +00:00
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else
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status = sn_device_fixup_war(nasid,
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widget,
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device,
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2006-01-16 20:31:52 +00:00
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dev_entry->common);
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2006-01-25 23:51:14 +00:00
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if (status != SALRET_OK)
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panic("SAL call failed: %s\n",
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ia64_sal_strerror(status));
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2005-12-23 18:33:25 +00:00
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spin_lock_init(&dev_entry->sfdl_flush_lock);
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2005-04-16 22:20:36 +00:00
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}
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2005-12-23 18:33:25 +00:00
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if (sn_flush_device_kernel)
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hubdev->hdi_flush_nasid_list.widget_p[widget] =
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sn_flush_device_kernel;
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}
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2005-04-16 22:20:36 +00:00
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}
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}
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2005-11-29 22:36:32 +00:00
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/*
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* sn_pci_window_fixup() - Create a pci_window for each device resource.
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* Until ACPI support is added, we need this code
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* to setup pci_windows for use by
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* pcibios_bus_to_resource(),
|
|
|
|
* pcibios_resource_to_bus(), etc.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
sn_pci_window_fixup(struct pci_dev *dev, unsigned int count,
|
2006-01-17 03:54:40 +00:00
|
|
|
s64 * pci_addrs)
|
2005-11-29 22:36:32 +00:00
|
|
|
{
|
|
|
|
struct pci_controller *controller = PCI_CONTROLLER(dev->bus);
|
|
|
|
unsigned int i;
|
|
|
|
unsigned int idx;
|
|
|
|
unsigned int new_count;
|
|
|
|
struct pci_window *new_window;
|
|
|
|
|
|
|
|
if (count == 0)
|
|
|
|
return;
|
|
|
|
idx = controller->windows;
|
|
|
|
new_count = controller->windows + count;
|
|
|
|
new_window = kcalloc(new_count, sizeof(struct pci_window), GFP_KERNEL);
|
|
|
|
if (new_window == NULL)
|
|
|
|
BUG();
|
|
|
|
if (controller->window) {
|
|
|
|
memcpy(new_window, controller->window,
|
|
|
|
sizeof(struct pci_window) * controller->windows);
|
|
|
|
kfree(controller->window);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Setup a pci_window for each device resource. */
|
|
|
|
for (i = 0; i <= PCI_ROM_RESOURCE; i++) {
|
|
|
|
if (pci_addrs[i] == -1)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
new_window[idx].offset = dev->resource[i].start - pci_addrs[i];
|
|
|
|
new_window[idx].resource = dev->resource[i];
|
|
|
|
idx++;
|
|
|
|
}
|
|
|
|
|
|
|
|
controller->windows = new_count;
|
|
|
|
controller->window = new_window;
|
|
|
|
}
|
|
|
|
|
2005-07-06 22:29:53 +00:00
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
/*
|
|
|
|
* 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.
|
|
|
|
*/
|
2005-07-06 22:26:51 +00:00
|
|
|
void sn_pci_fixup_slot(struct pci_dev *dev)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2005-11-29 22:36:32 +00:00
|
|
|
unsigned int count = 0;
|
2005-04-16 22:20:36 +00:00
|
|
|
int idx;
|
2005-08-03 20:35:00 +00:00
|
|
|
int segment = pci_domain_nr(dev->bus);
|
2005-04-16 22:20:36 +00:00
|
|
|
int status = 0;
|
2005-04-25 18:26:03 +00:00
|
|
|
struct pcibus_bussoft *bs;
|
2005-07-06 21:59:44 +00:00
|
|
|
struct pci_bus *host_pci_bus;
|
|
|
|
struct pci_dev *host_pci_dev;
|
2005-11-29 22:36:32 +00:00
|
|
|
struct pcidev_info *pcidev_info;
|
2006-01-17 03:54:40 +00:00
|
|
|
s64 pci_addrs[PCI_ROM_RESOURCE + 1];
|
2005-07-06 21:59:44 +00:00
|
|
|
struct sn_irq_info *sn_irq_info;
|
|
|
|
unsigned long size;
|
|
|
|
unsigned int bus_no, devfn;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2005-07-06 22:29:53 +00:00
|
|
|
pci_dev_get(dev); /* for the sysdata pointer */
|
2005-11-29 22:36:32 +00:00
|
|
|
pcidev_info = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL);
|
|
|
|
if (pcidev_info <= 0)
|
2005-04-16 22:20:36 +00:00
|
|
|
BUG(); /* Cannot afford to run out of memory */
|
|
|
|
|
|
|
|
sn_irq_info = kmalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
|
|
|
|
if (sn_irq_info <= 0)
|
|
|
|
BUG(); /* Cannot afford to run out of memory */
|
|
|
|
memset(sn_irq_info, 0, sizeof(struct sn_irq_info));
|
|
|
|
|
|
|
|
/* Call to retrieve pci device information needed by kernel. */
|
|
|
|
status = sal_get_pcidev_info((u64) segment, (u64) dev->bus->number,
|
|
|
|
dev->devfn,
|
2005-11-29 22:36:32 +00:00
|
|
|
(u64) __pa(pcidev_info),
|
2005-04-16 22:20:36 +00:00
|
|
|
(u64) __pa(sn_irq_info));
|
|
|
|
if (status)
|
2005-07-06 21:59:44 +00:00
|
|
|
BUG(); /* Cannot get platform pci device information */
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2005-11-29 22:36:32 +00:00
|
|
|
/* Add pcidev_info to list in sn_pci_controller struct */
|
|
|
|
list_add_tail(&pcidev_info->pdi_list,
|
|
|
|
&(SN_PCI_CONTROLLER(dev->bus)->pcidev_info));
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
/* Copy over PIO Mapped Addresses */
|
|
|
|
for (idx = 0; idx <= PCI_ROM_RESOURCE; idx++) {
|
|
|
|
unsigned long start, end, addr;
|
|
|
|
|
2005-11-29 22:36:32 +00:00
|
|
|
if (!pcidev_info->pdi_pio_mapped_addr[idx]) {
|
|
|
|
pci_addrs[idx] = -1;
|
2005-04-16 22:20:36 +00:00
|
|
|
continue;
|
2005-11-29 22:36:32 +00:00
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
start = dev->resource[idx].start;
|
|
|
|
end = dev->resource[idx].end;
|
|
|
|
size = end - start;
|
2005-11-29 22:36:32 +00:00
|
|
|
if (size == 0) {
|
|
|
|
pci_addrs[idx] = -1;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
pci_addrs[idx] = start;
|
|
|
|
count++;
|
|
|
|
addr = pcidev_info->pdi_pio_mapped_addr[idx];
|
2005-04-16 22:20:36 +00:00
|
|
|
addr = ((addr << 4) >> 4) | __IA64_UNCACHED_OFFSET;
|
|
|
|
dev->resource[idx].start = addr;
|
|
|
|
dev->resource[idx].end = addr + size;
|
|
|
|
if (dev->resource[idx].flags & IORESOURCE_IO)
|
|
|
|
dev->resource[idx].parent = &ioport_resource;
|
|
|
|
else
|
|
|
|
dev->resource[idx].parent = &iomem_resource;
|
|
|
|
}
|
2005-11-29 22:36:32 +00:00
|
|
|
/* Create a pci_window in the pci_controller struct for
|
|
|
|
* each device resource.
|
|
|
|
*/
|
|
|
|
if (count > 0)
|
|
|
|
sn_pci_window_fixup(dev, count, pci_addrs);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2005-07-06 22:29:53 +00:00
|
|
|
/*
|
|
|
|
* Using the PROMs values for the PCI host bus, get the Linux
|
2005-07-06 21:59:44 +00:00
|
|
|
* PCI host_pci_dev struct and set up host bus linkages
|
|
|
|
*/
|
|
|
|
|
2005-11-29 22:36:32 +00:00
|
|
|
bus_no = (pcidev_info->pdi_slot_host_handle >> 32) & 0xff;
|
|
|
|
devfn = pcidev_info->pdi_slot_host_handle & 0xffffffff;
|
2005-08-03 20:35:00 +00:00
|
|
|
host_pci_bus = pci_find_bus(segment, bus_no);
|
2005-07-06 21:59:44 +00:00
|
|
|
host_pci_dev = pci_get_slot(host_pci_bus, devfn);
|
|
|
|
|
2005-11-29 22:36:32 +00:00
|
|
|
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);
|
2005-07-06 21:59:44 +00:00
|
|
|
bs = SN_PCIBUS_BUSSOFT(dev->bus);
|
2005-11-29 22:36:32 +00:00
|
|
|
pcidev_info->pdi_pcibus_info = bs;
|
2005-04-25 18:26:03 +00:00
|
|
|
|
|
|
|
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;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
/* Only set up IRQ stuff if this device has a host bus context */
|
2005-04-25 18:26:03 +00:00
|
|
|
if (bs && sn_irq_info->irq_irq) {
|
2005-11-29 22:36:32 +00:00
|
|
|
pcidev_info->pdi_sn_irq_info = sn_irq_info;
|
|
|
|
dev->irq = pcidev_info->pdi_sn_irq_info->irq_irq;
|
2005-04-16 22:20:36 +00:00
|
|
|
sn_irq_fixup(dev, sn_irq_info);
|
2005-07-06 21:59:44 +00:00
|
|
|
} else {
|
2005-11-29 22:36:32 +00:00
|
|
|
pcidev_info->pdi_sn_irq_info = NULL;
|
2005-07-06 21:59:44 +00:00
|
|
|
kfree(sn_irq_info);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
2006-01-27 19:59:07 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* MSI currently not supported on altix. Remove this when
|
|
|
|
* the MSI abstraction patches are integrated into the kernel
|
|
|
|
* (sometime after 2.6.16 releases)
|
|
|
|
*/
|
|
|
|
dev->no_msi = 1;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* sn_pci_controller_fixup() - This routine sets up a bus's resources
|
|
|
|
* consistent with the Linux PCI abstraction layer.
|
|
|
|
*/
|
2005-07-06 22:29:53 +00:00
|
|
|
void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
int status = 0;
|
|
|
|
int nasid, cnode;
|
|
|
|
struct pci_controller *controller;
|
2005-11-29 22:36:32 +00:00
|
|
|
struct sn_pci_controller *sn_controller;
|
2005-04-16 22:20:36 +00:00
|
|
|
struct pcibus_bussoft *prom_bussoft_ptr;
|
|
|
|
struct hubdev_info *hubdev_info;
|
2005-08-02 17:08:00 +00:00
|
|
|
void *provider_soft = NULL;
|
2005-04-25 18:26:03 +00:00
|
|
|
struct sn_pcibus_provider *provider;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2005-07-06 22:29:53 +00:00
|
|
|
status = sal_get_pcibus_info((u64) segment, (u64) busnum,
|
|
|
|
(u64) ia64_tpa(&prom_bussoft_ptr));
|
|
|
|
if (status > 0)
|
|
|
|
return; /*bus # does not exist */
|
2005-04-16 22:20:36 +00:00
|
|
|
prom_bussoft_ptr = __va(prom_bussoft_ptr);
|
|
|
|
|
2005-11-29 22:36:32 +00:00
|
|
|
/* Allocate a sn_pci_controller, which has a pci_controller struct
|
|
|
|
* as the first member.
|
|
|
|
*/
|
|
|
|
sn_controller = kzalloc(sizeof(struct sn_pci_controller), GFP_KERNEL);
|
|
|
|
if (!sn_controller)
|
|
|
|
BUG();
|
|
|
|
INIT_LIST_HEAD(&sn_controller->pcidev_info);
|
|
|
|
controller = &sn_controller->pci_controller;
|
2005-08-03 20:35:00 +00:00
|
|
|
controller->segment = segment;
|
2005-07-06 22:29:53 +00:00
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
if (bus == NULL) {
|
2005-07-06 22:29:53 +00:00
|
|
|
bus = pci_scan_bus(busnum, &pci_root_ops, controller);
|
|
|
|
if (bus == NULL)
|
2005-08-02 17:08:00 +00:00
|
|
|
goto error_return; /* error, or bus already scanned */
|
2005-07-06 22:29:53 +00:00
|
|
|
bus->sysdata = NULL;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2005-07-06 22:29:53 +00:00
|
|
|
if (bus->sysdata)
|
|
|
|
goto error_return; /* sysdata already alloc'd */
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
/*
|
|
|
|
* Per-provider fixup. Copies the contents from prom to local
|
|
|
|
* area and links SN_PCIBUS_BUSSOFT().
|
|
|
|
*/
|
|
|
|
|
2005-07-06 22:29:53 +00:00
|
|
|
if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES)
|
2005-08-02 17:08:00 +00:00
|
|
|
goto error_return; /* unsupported asic type */
|
2005-07-06 22:29:53 +00:00
|
|
|
|
|
|
|
if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB)
|
|
|
|
goto error_return; /* no further fixup necessary */
|
2005-04-25 18:26:03 +00:00
|
|
|
|
|
|
|
provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type];
|
2005-07-06 22:29:53 +00:00
|
|
|
if (provider == NULL)
|
2005-08-02 17:08:00 +00:00
|
|
|
goto error_return; /* no provider registerd for this asic */
|
2005-04-25 18:26:03 +00:00
|
|
|
|
2005-08-02 17:08:00 +00:00
|
|
|
bus->sysdata = controller;
|
2005-07-06 22:29:53 +00:00
|
|
|
if (provider->bus_fixup)
|
2005-07-12 23:03:00 +00:00
|
|
|
provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr, controller);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2005-08-02 17:08:00 +00:00
|
|
|
if (provider_soft == NULL) {
|
|
|
|
/* fixup failed or not applicable */
|
|
|
|
bus->sysdata = NULL;
|
|
|
|
goto error_return;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2005-11-29 22:36:32 +00:00
|
|
|
/*
|
|
|
|
* Setup pci_windows for legacy IO and MEM space.
|
|
|
|
* (Temporary until ACPI support is in place.)
|
|
|
|
*/
|
|
|
|
controller->window = kcalloc(2, sizeof(struct pci_window), GFP_KERNEL);
|
|
|
|
if (controller->window == NULL)
|
|
|
|
BUG();
|
|
|
|
controller->window[0].offset = prom_bussoft_ptr->bs_legacy_io;
|
|
|
|
controller->window[0].resource.name = "legacy_io";
|
|
|
|
controller->window[0].resource.flags = IORESOURCE_IO;
|
|
|
|
controller->window[0].resource.start = prom_bussoft_ptr->bs_legacy_io;
|
|
|
|
controller->window[0].resource.end =
|
|
|
|
controller->window[0].resource.start + 0xffff;
|
|
|
|
controller->window[0].resource.parent = &ioport_resource;
|
|
|
|
controller->window[1].offset = prom_bussoft_ptr->bs_legacy_mem;
|
|
|
|
controller->window[1].resource.name = "legacy_mem";
|
|
|
|
controller->window[1].resource.flags = IORESOURCE_MEM;
|
|
|
|
controller->window[1].resource.start = prom_bussoft_ptr->bs_legacy_mem;
|
|
|
|
controller->window[1].resource.end =
|
|
|
|
controller->window[1].resource.start + (1024 * 1024) - 1;
|
|
|
|
controller->window[1].resource.parent = &iomem_resource;
|
|
|
|
controller->windows = 2;
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
/*
|
|
|
|
* Generic bus fixup goes here. Don't reference prom_bussoft_ptr
|
|
|
|
* after this point.
|
|
|
|
*/
|
|
|
|
|
|
|
|
PCI_CONTROLLER(bus)->platform_data = provider_soft;
|
|
|
|
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]);
|
2005-07-06 22:29:53 +00:00
|
|
|
|
2005-07-12 23:03:00 +00:00
|
|
|
/*
|
|
|
|
* 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);
|
|
|
|
|
2005-08-03 20:35:00 +00:00
|
|
|
printk(KERN_WARNING "Device ASIC=%u XID=%u PBUSNUM=%u"
|
2005-07-12 23:03:00 +00:00
|
|
|
"L_IO=%lx L_MEM=%lx BASE=%lx\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;
|
|
|
|
}
|
2005-07-06 22:29:53 +00:00
|
|
|
return;
|
|
|
|
|
|
|
|
error_return:
|
|
|
|
|
2005-11-29 22:36:32 +00:00
|
|
|
kfree(sn_controller);
|
2005-07-06 22:29:53 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
void sn_bus_store_sysdata(struct pci_dev *dev)
|
|
|
|
{
|
|
|
|
struct sysdata_el *element;
|
|
|
|
|
2005-09-06 22:18:31 +00:00
|
|
|
element = kzalloc(sizeof(struct sysdata_el), GFP_KERNEL);
|
2005-07-06 22:29:53 +00:00
|
|
|
if (!element) {
|
|
|
|
dev_dbg(dev, "%s: out of memory!\n", __FUNCTION__);
|
|
|
|
return;
|
|
|
|
}
|
2005-11-29 22:36:32 +00:00
|
|
|
element->sysdata = SN_PCIDEV_INFO(dev);
|
2005-07-06 22:29:53 +00:00
|
|
|
list_add(&element->entry, &sn_sysdata_list);
|
|
|
|
}
|
|
|
|
|
|
|
|
void sn_bus_free_sysdata(void)
|
|
|
|
{
|
|
|
|
struct sysdata_el *element;
|
2006-02-09 22:14:52 +00:00
|
|
|
struct list_head *list, *safe;
|
2005-07-06 22:29:53 +00:00
|
|
|
|
2006-02-09 22:14:52 +00:00
|
|
|
list_for_each_safe(list, safe, &sn_sysdata_list) {
|
2005-07-06 22:29:53 +00:00
|
|
|
element = list_entry(list, struct sysdata_el, entry);
|
|
|
|
list_del(&element->entry);
|
2006-02-09 22:12:24 +00:00
|
|
|
list_del(&(((struct pcidev_info *)
|
|
|
|
(element->sysdata))->pdi_list));
|
2005-07-06 22:29:53 +00:00
|
|
|
kfree(element->sysdata);
|
|
|
|
kfree(element);
|
|
|
|
}
|
|
|
|
return;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Ugly hack to get PCI setup until we have a proper ACPI namespace.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define PCI_BUSES_TO_SCAN 256
|
|
|
|
|
|
|
|
static int __init sn_pci_init(void)
|
|
|
|
{
|
|
|
|
int i = 0;
|
2005-08-03 20:35:00 +00:00
|
|
|
int j = 0;
|
2005-04-16 22:20:36 +00:00
|
|
|
struct pci_dev *pci_dev = NULL;
|
|
|
|
extern void sn_init_cpei_timer(void);
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
|
|
extern void register_sn_procfs(void);
|
|
|
|
#endif
|
|
|
|
|
2005-05-10 15:01:00 +00:00
|
|
|
if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM())
|
2005-04-16 22:20:36 +00:00
|
|
|
return 0;
|
|
|
|
|
2005-04-25 18:26:03 +00:00
|
|
|
/*
|
|
|
|
* prime sn_pci_provider[]. Individial 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();
|
2005-04-25 18:35:54 +00:00
|
|
|
tioca_init_provider();
|
2005-08-03 21:07:00 +00:00
|
|
|
tioce_init_provider();
|
2005-04-25 18:26:03 +00:00
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
/*
|
|
|
|
* This is needed to avoid bounce limit checks in the blk layer
|
|
|
|
*/
|
|
|
|
ia64_max_iommu_merge_mask = ~PAGE_MASK;
|
|
|
|
sn_fixup_ionodes();
|
2005-07-06 21:59:44 +00:00
|
|
|
sn_irq_lh_init();
|
2005-07-06 22:29:53 +00:00
|
|
|
INIT_LIST_HEAD(&sn_sysdata_list);
|
2005-04-16 22:20:36 +00:00
|
|
|
sn_init_cpei_timer();
|
|
|
|
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
|
|
register_sn_procfs();
|
|
|
|
#endif
|
|
|
|
|
2005-07-06 22:29:53 +00:00
|
|
|
/* busses are not known yet ... */
|
2005-08-03 20:35:00 +00:00
|
|
|
for (i = 0; i <= max_segment_number; i++)
|
|
|
|
for (j = 0; j <= max_pcibus_number; j++)
|
|
|
|
sn_pci_controller_fixup(i, j, NULL);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Generic Linux PCI Layer has created the pci_bus and pci_dev
|
|
|
|
* structures - time for us to add our SN PLatform specific
|
|
|
|
* information.
|
|
|
|
*/
|
|
|
|
|
|
|
|
while ((pci_dev =
|
2005-07-06 22:29:53 +00:00
|
|
|
pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pci_dev)) != NULL)
|
2005-04-16 22:20:36 +00:00
|
|
|
sn_pci_fixup_slot(pci_dev);
|
|
|
|
|
|
|
|
sn_ioif_inited = 1; /* sn I/O infrastructure now initialized */
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* hubdev_init_node() - Creates the HUB data structure and link them to it's
|
|
|
|
* own NODE specific data area.
|
|
|
|
*/
|
|
|
|
void hubdev_init_node(nodepda_t * npda, cnodeid_t node)
|
|
|
|
{
|
|
|
|
|
|
|
|
struct hubdev_info *hubdev_info;
|
|
|
|
|
|
|
|
if (node >= num_online_nodes()) /* Headless/memless IO nodes */
|
|
|
|
hubdev_info =
|
|
|
|
(struct hubdev_info *)alloc_bootmem_node(NODE_DATA(0),
|
|
|
|
sizeof(struct
|
|
|
|
hubdev_info));
|
|
|
|
else
|
|
|
|
hubdev_info =
|
|
|
|
(struct hubdev_info *)alloc_bootmem_node(NODE_DATA(node),
|
|
|
|
sizeof(struct
|
|
|
|
hubdev_info));
|
|
|
|
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;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
subsys_initcall(sn_pci_init);
|
2005-07-06 22:29:53 +00:00
|
|
|
EXPORT_SYMBOL(sn_pci_fixup_slot);
|
|
|
|
EXPORT_SYMBOL(sn_pci_unfixup_slot);
|
|
|
|
EXPORT_SYMBOL(sn_pci_controller_fixup);
|
|
|
|
EXPORT_SYMBOL(sn_bus_store_sysdata);
|
|
|
|
EXPORT_SYMBOL(sn_bus_free_sysdata);
|