#include <linux/bootmem.h>
#include <linux/nodemask.h>
#include <asm/sn/types.h>
-#include <asm/sn/sn_sal.h>
#include <asm/sn/addrs.h>
-#include <asm/sn/pcibus_provider_defs.h>
-#include <asm/sn/pcidev.h>
-#include "pci/pcibr_provider.h"
-#include "xtalk/xwidgetdev.h"
#include <asm/sn/geo.h>
-#include "xtalk/hubdev.h"
#include <asm/sn/io.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"
-char master_baseio_wid;
nasid_t master_nasid = INVALID_NASID; /* Partition Master */
+static struct list_head sn_sysdata_list;
+
+/* sysdata list struct */
+struct sysdata_el {
+ struct list_head entry;
+ void *sysdata;
+};
+
struct slab_info {
struct hubdev_info hubdev;
};
struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES]; /* indexed by asic type */
+static int max_segment_number = 0; /* Default highest segment number */
+static int max_pcibus_number = 255; /* Default highest pci bus number */
+
/*
* Hooks and struct for unsupported pci providers
*/
}
static void *
-sn_default_pci_bus_fixup(struct pcibus_bussoft *soft)
+sn_default_pci_bus_fixup(struct pcibus_bussoft *soft, struct pci_controller *controller)
{
return NULL;
}
return ret_stuff.v0;
}
-/*
- * sn_alloc_pci_sysdata() - This routine allocates a pci controller
- * which is expected as the pci_dev and pci_bus sysdata by the Linux
- * PCI infrastructure.
- */
-static inline struct pci_controller *sn_alloc_pci_sysdata(void)
-{
- struct pci_controller *pci_sysdata;
-
- pci_sysdata = kmalloc(sizeof(*pci_sysdata), GFP_KERNEL);
- if (!pci_sysdata)
- BUG();
-
- memset(pci_sysdata, 0, sizeof(*pci_sysdata));
- return pci_sysdata;
-}
-
/*
* sn_fixup_ionodes() - This routine initializes the HUB data strcuture for
* each node in the system.
uint64_t nasid;
int i, widget;
+ /*
+ * Get SGI Specific HUB chipset information.
+ * Inform Prom that this kernel can support domain bus numbering.
+ */
for (i = 0; i < numionodes; 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, (uint64_t) __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;
+ }
+
/* Attach the error interrupt handlers */
if (nasid & 1)
ice_error_init(hubdev);
continue;
}
+ spin_lock_init(&sn_flush_device_list->sfdl_flush_lock);
hubdev->hdi_flush_nasid_list.widget_p[widget] =
sn_flush_device_list;
}
}
+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() - 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.
*/
-static void sn_pci_fixup_slot(struct pci_dev *dev)
+void sn_pci_fixup_slot(struct pci_dev *dev)
{
int idx;
- int segment = 0;
- uint64_t size;
- struct sn_irq_info *sn_irq_info;
- struct pci_dev *host_pci_dev;
+ 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 sn_irq_info *sn_irq_info;
+ unsigned long size;
+ unsigned int bus_no, devfn;
+ pci_dev_get(dev); /* for the sysdata pointer */
dev->sysdata = kmalloc(sizeof(struct pcidev_info), GFP_KERNEL);
if (SN_PCIDEV_INFO(dev) <= 0)
BUG(); /* Cannot afford to run out of memory */
(u64) __pa(SN_PCIDEV_INFO(dev)),
(u64) __pa(sn_irq_info));
if (status)
- BUG(); /* Cannot get platform pci device information information */
+ BUG(); /* Cannot get platform pci device information */
/* Copy over PIO Mapped Addresses */
for (idx = 0; idx <= PCI_ROM_RESOURCE; idx++) {
dev->resource[idx].parent = &iomem_resource;
}
- /* set up host bus linkages */
- bs = SN_PCIBUS_BUSSOFT(dev->bus);
- host_pci_dev =
- pci_find_slot(SN_PCIDEV_INFO(dev)->pdi_slot_host_handle >> 32,
- SN_PCIDEV_INFO(dev)->
- pdi_slot_host_handle & 0xffffffff);
+ /*
+ * 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 = (SN_PCIDEV_INFO(dev)->pdi_slot_host_handle >> 32) & 0xff;
+ devfn = SN_PCIDEV_INFO(dev)->pdi_slot_host_handle & 0xffffffff;
+ host_pci_bus = pci_find_bus(segment, bus_no);
+ host_pci_dev = pci_get_slot(host_pci_bus, devfn);
+
+ SN_PCIDEV_INFO(dev)->host_pci_dev = host_pci_dev;
SN_PCIDEV_INFO(dev)->pdi_host_pcidev_info =
- SN_PCIDEV_INFO(host_pci_dev);
+ SN_PCIDEV_INFO(host_pci_dev);
SN_PCIDEV_INFO(dev)->pdi_linux_pcidev = dev;
+ bs = SN_PCIBUS_BUSSOFT(dev->bus);
SN_PCIDEV_INFO(dev)->pdi_pcibus_info = bs;
if (bs && bs->bs_asic_type < PCIIO_ASIC_MAX_TYPES) {
SN_PCIDEV_INFO(dev)->pdi_sn_irq_info = sn_irq_info;
dev->irq = SN_PCIDEV_INFO(dev)->pdi_sn_irq_info->irq_irq;
sn_irq_fixup(dev, sn_irq_info);
+ } else {
+ SN_PCIDEV_INFO(dev)->pdi_sn_irq_info = NULL;
+ kfree(sn_irq_info);
}
}
* sn_pci_controller_fixup() - This routine sets up a bus's resources
* consistent with the Linux PCI abstraction layer.
*/
-static void sn_pci_controller_fixup(int segment, int busnum)
+void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
{
int status = 0;
int nasid, cnode;
- struct pci_bus *bus;
struct pci_controller *controller;
struct pcibus_bussoft *prom_bussoft_ptr;
struct hubdev_info *hubdev_info;
- void *provider_soft;
+ void *provider_soft = NULL;
struct sn_pcibus_provider *provider;
- status =
- sal_get_pcibus_info((u64) segment, (u64) busnum,
- (u64) ia64_tpa(&prom_bussoft_ptr));
- if (status > 0) {
- return; /* bus # does not exist */
- }
-
+ 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 = sn_alloc_pci_sysdata();
- /* controller non-zero is BUG'd in sn_alloc_pci_sysdata */
- bus = pci_scan_bus(busnum, &pci_root_ops, controller);
+ controller = kcalloc(1,sizeof(struct pci_controller), GFP_KERNEL);
+ controller->segment = segment;
+ if (!controller)
+ BUG();
+
if (bus == NULL) {
- return; /* error, or bus already scanned */
+ bus = pci_scan_bus(busnum, &pci_root_ops, controller);
+ if (bus == NULL)
+ goto error_return; /* error, or bus already scanned */
+ bus->sysdata = NULL;
}
+ if (bus->sysdata)
+ goto error_return; /* sysdata already alloc'd */
+
/*
* Per-provider fixup. Copies the contents from prom to local
* area and links SN_PCIBUS_BUSSOFT().
*/
- if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES) {
- return; /* unsupported asic type */
- }
+ if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES)
+ goto error_return; /* unsupported asic type */
+
+ if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB)
+ goto error_return; /* no further fixup necessary */
provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type];
- if (provider == NULL) {
- return; /* no provider registerd for this asic */
- }
+ if (provider == NULL)
+ goto error_return; /* no provider registerd for this asic */
- provider_soft = NULL;
- if (provider->bus_fixup) {
- provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr);
- }
+ bus->sysdata = controller;
+ if (provider->bus_fixup)
+ provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr, controller);
if (provider_soft == NULL) {
- return; /* fixup failed or not applicable */
+ /* fixup failed or not applicable */
+ bus->sysdata = NULL;
+ goto error_return;
}
/*
* after this point.
*/
- bus->sysdata = controller;
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]);
+
+ /*
+ * 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=%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;
+ }
+ return;
+
+error_return:
+
+ kfree(controller);
+ return;
+}
+
+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, "%s: out of memory!\n", __FUNCTION__);
+ return;
+ }
+ element->sysdata = dev->sysdata;
+ list_add(&element->entry, &sn_sysdata_list);
+}
+
+void sn_bus_free_sysdata(void)
+{
+ struct sysdata_el *element;
+ struct list_head *list;
+
+sn_sysdata_free_start:
+ list_for_each(list, &sn_sysdata_list) {
+ element = list_entry(list, struct sysdata_el, entry);
+ list_del(&element->entry);
+ kfree(element->sysdata);
+ kfree(element);
+ goto sn_sysdata_free_start;
+ }
+ return;
}
/*
static int __init sn_pci_init(void)
{
int i = 0;
+ int j = 0;
struct pci_dev *pci_dev = NULL;
extern void sn_init_cpei_timer(void);
#ifdef CONFIG_PROC_FS
pcibr_init_provider();
tioca_init_provider();
+ tioce_init_provider();
/*
* This is needed to avoid bounce limit checks in the blk layer
*/
ia64_max_iommu_merge_mask = ~PAGE_MASK;
sn_fixup_ionodes();
- sn_irq = kmalloc(sizeof(struct sn_irq_info *) * NR_IRQS, GFP_KERNEL);
- if (sn_irq <= 0)
- BUG(); /* Canno afford to run out of memory. */
- memset(sn_irq, 0, sizeof(struct sn_irq_info *) * NR_IRQS);
-
+ sn_irq_lh_init();
+ INIT_LIST_HEAD(&sn_sysdata_list);
sn_init_cpei_timer();
#ifdef CONFIG_PROC_FS
register_sn_procfs();
#endif
- for (i = 0; i < PCI_BUSES_TO_SCAN; i++) {
- sn_pci_controller_fixup(0, i);
- }
+ /* 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);
/*
* Generic Linux PCI Layer has created the pci_bus and pci_dev
*/
while ((pci_dev =
- pci_find_device(PCI_ANY_ID, PCI_ANY_ID, pci_dev)) != NULL) {
+ pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pci_dev)) != NULL)
sn_pci_fixup_slot(pci_dev);
- }
sn_ioif_inited = 1; /* sn I/O infrastructure now initialized */
}
subsys_initcall(sn_pci_init);
+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);
git.samba.org / sfrench / cifs-2.6.git / blobdiff