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Diffstat (limited to 'arch/ia64/sn/kernel/io_common.c')
-rw-r--r--arch/ia64/sn/kernel/io_common.c90
1 files changed, 26 insertions, 64 deletions
diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c
index d4dd8f4b6b8..d48bcd83253 100644
--- a/arch/ia64/sn/kernel/io_common.c
+++ b/arch/ia64/sn/kernel/io_common.c
@@ -26,14 +26,10 @@
#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);
@@ -48,6 +44,9 @@ struct sysdata_el {
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 */
/*
@@ -99,25 +98,6 @@ sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num,
}
/*
- * 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.
*/
@@ -249,50 +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;
@@ -489,11 +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)
{
@@ -519,6 +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.
@@ -544,8 +503,12 @@ sn_io_early_init(void)
register_sn_procfs();
#endif
- printk(KERN_INFO "ACPI DSDT OEM Rev 0x%x\n",
- acpi_gbl_DSDT->oem_revision);
+ {
+ struct acpi_table_header *header;
+ (void)acpi_get_table_by_index(ACPI_TABLE_INDEX_DSDT, &header);
+ printk(KERN_INFO "ACPI DSDT OEM Rev 0x%x\n",
+ header->oem_revision);
+ }
if (SN_ACPI_BASE_SUPPORT())
sn_io_acpi_init();
else
@@ -605,7 +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);