Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6f09a925 authored by John Keller's avatar John Keller Committed by Len Brown
Browse files

Altix: ACPI SSDT PCI device support



Add SN platform support for running with an ACPI
capable PROM that defines PCI devices in SSDT
tables. There is a SSDT table for every occupied
slot on a root bus, containing info for every
PPB and/or device on the bus. The SSDTs will be
dynamically loaded/unloaded at hotplug enable/disable.

Platform specific information that is currently
passed via a SAL call, will now be passed via the
Vendor resource in the ACPI Device object(s) defined
in each SSDT.

Signed-off-by: default avatarJohn Keller <jpk@sgi.com>
Cc: Greg KH <greg@kroah.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 647fb47d
Loading
Loading
Loading
Loading
+290 −24
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@
#include <asm/sn/sn_sal.h>
#include "xtalk/hubdev.h"
#include <linux/acpi.h>
#include <acpi/acnamesp.h>


/*
@@ -31,6 +32,12 @@ struct acpi_vendor_uuid sn_uuid = {
		    0xa2, 0x7c, 0x08, 0x00, 0x69, 0x13, 0xea, 0x51 },
};

struct sn_pcidev_match {
	u8 bus;
	unsigned int devfn;
	acpi_handle handle;
};

/*
 * Perform the early IO init in PROM.
 */
@@ -119,9 +126,11 @@ sn_get_bussoft_ptr(struct pci_bus *bus)
	status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS,
					  &sn_uuid, &buffer);
	if (ACPI_FAILURE(status)) {
		printk(KERN_ERR "get_acpi_pcibus_ptr: "
		       "get_acpi_bussoft_info() failed: %d\n",
		       status);
		printk(KERN_ERR "%s: "
		       "acpi_get_vendor_resource() failed (0x%x) for: ",
		       __FUNCTION__, status);
		acpi_ns_print_node_pathname(handle, NULL);
		printk("\n");
		return NULL;
	}
	resource = buffer.pointer;
@@ -130,8 +139,8 @@ sn_get_bussoft_ptr(struct pci_bus *bus)
	if ((vendor->byte_length - sizeof(struct acpi_vendor_uuid)) !=
	     sizeof(struct pcibus_bussoft *)) {
		printk(KERN_ERR
		       "get_acpi_bussoft_ptr: Invalid vendor data "
		       "length %d\n", vendor->byte_length);
		       "%s: Invalid vendor data length %d\n",
			__FUNCTION__, vendor->byte_length);
		kfree(buffer.pointer);
		return NULL;
	}
@@ -143,34 +152,254 @@ sn_get_bussoft_ptr(struct pci_bus *bus)
}

/*
 * sn_acpi_bus_fixup
 * sn_extract_device_info - Extract the pcidev_info and the sn_irq_info
 *			    pointers from the vendor resource using the
 *			    provided acpi handle, and copy the structures
 *			    into the argument buffers.
 */
void
sn_acpi_bus_fixup(struct pci_bus *bus)
static int
sn_extract_device_info(acpi_handle handle, struct pcidev_info **pcidev_info,
		    struct sn_irq_info **sn_irq_info)
{
	struct pci_dev *pci_dev = NULL;
	struct pcibus_bussoft *prom_bussoft_ptr;
	extern void sn_common_bus_fixup(struct pci_bus *,
					struct pcibus_bussoft *);
	u64 addr;
	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
	struct sn_irq_info *irq_info, *irq_info_prom;
	struct pcidev_info *pcidev_ptr, *pcidev_prom_ptr;
	struct acpi_resource *resource;
	int ret = 0;
	acpi_status status;
	struct acpi_resource_vendor_typed *vendor;

	if (!bus->parent) {	/* If root bus */
		prom_bussoft_ptr = sn_get_bussoft_ptr(bus);
		if (prom_bussoft_ptr == NULL) {
	/*
	 * The pointer to this device's pcidev_info structure in
	 * the PROM, is in the vendor resource.
	 */
	status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS,
					  &sn_uuid, &buffer);
	if (ACPI_FAILURE(status)) {
		printk(KERN_ERR
			       "sn_pci_fixup_bus: 0x%04x:0x%02x Unable to "
			       "obtain prom_bussoft_ptr\n",
			       pci_domain_nr(bus), bus->number);
			return;
		       "%s: acpi_get_vendor_resource() failed (0x%x) for: ",
		        __FUNCTION__, status);
		acpi_ns_print_node_pathname(handle, NULL);
		printk("\n");
		return 1;
	}
		sn_common_bus_fixup(bus, prom_bussoft_ptr);

	resource = buffer.pointer;
	vendor = &resource->data.vendor_typed;
	if ((vendor->byte_length - sizeof(struct acpi_vendor_uuid)) !=
	    sizeof(struct pci_devdev_info *)) {
		printk(KERN_ERR
		       "%s: Invalid vendor data length: %d for: ",
		        __FUNCTION__, vendor->byte_length);
		acpi_ns_print_node_pathname(handle, NULL);
		printk("\n");
		ret = 1;
		goto exit;
	}

	pcidev_ptr = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL);
	if (!pcidev_ptr)
		panic("%s: Unable to alloc memory for pcidev_info", __FUNCTION__);

	memcpy(&addr, vendor->byte_data, sizeof(struct pcidev_info *));
	pcidev_prom_ptr = __va(addr);
	memcpy(pcidev_ptr, pcidev_prom_ptr, sizeof(struct pcidev_info));

	/* Get the IRQ info */
	irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
	if (!irq_info)
		 panic("%s: Unable to alloc memory for sn_irq_info", __FUNCTION__);

	if (pcidev_ptr->pdi_sn_irq_info) {
		irq_info_prom = __va(pcidev_ptr->pdi_sn_irq_info);
		memcpy(irq_info, irq_info_prom, sizeof(struct sn_irq_info));
	}

	*pcidev_info = pcidev_ptr;
	*sn_irq_info = irq_info;

exit:
	kfree(buffer.pointer);
	return ret;
}

static unsigned int
get_host_devfn(acpi_handle device_handle, acpi_handle rootbus_handle)
{
	unsigned long adr;
	acpi_handle child;
	unsigned int devfn;
	int function;
	acpi_handle parent;
	int slot;
	acpi_status status;

	/*
	 * Do an upward search to find the root bus device, and
	 * obtain the host devfn from the previous child device.
	 */
	child = device_handle;
	while (child) {
		status = acpi_get_parent(child, &parent);
		if (ACPI_FAILURE(status)) {
			printk(KERN_ERR "%s: acpi_get_parent() failed "
			       "(0x%x) for: ", __FUNCTION__, status);
			acpi_ns_print_node_pathname(child, NULL);
			printk("\n");
			panic("%s: Unable to find host devfn\n", __FUNCTION__);
		}
		if (parent == rootbus_handle)
			break;
		child = parent;
	}
	if (!child) {
		printk(KERN_ERR "%s: Unable to find root bus for: ",
		       __FUNCTION__);
		acpi_ns_print_node_pathname(device_handle, NULL);
		printk("\n");
		BUG();
	}

	status = acpi_evaluate_integer(child, METHOD_NAME__ADR, NULL, &adr);
	if (ACPI_FAILURE(status)) {
		printk(KERN_ERR "%s: Unable to get _ADR (0x%x) for: ",
		       __FUNCTION__, status);
		acpi_ns_print_node_pathname(child, NULL);
		printk("\n");
		panic("%s: Unable to find host devfn\n", __FUNCTION__);
	}

	slot = (adr >> 16) & 0xffff;
	function = adr & 0xffff;
	devfn = PCI_DEVFN(slot, function);
	return devfn;
}

/*
 * find_matching_device - Callback routine to find the ACPI device
 *			  that matches up with our pci_dev device.
 *			  Matching is done on bus number and devfn.
 *			  To find the bus number for a particular
 *			  ACPI device, we must look at the _BBN method
 *			  of its parent.
 */
static acpi_status
find_matching_device(acpi_handle handle, u32 lvl, void *context, void **rv)
{
	unsigned long bbn = -1;
	unsigned long adr;
	acpi_handle parent = NULL;
	acpi_status status;
	unsigned int devfn;
	int function;
	int slot;
	struct sn_pcidev_match *info = context;

        status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL,
                                       &adr);
        if (ACPI_SUCCESS(status)) {
		status = acpi_get_parent(handle, &parent);
		if (ACPI_FAILURE(status)) {
			printk(KERN_ERR
			       "%s: acpi_get_parent() failed (0x%x) for: ",
					__FUNCTION__, status);
			acpi_ns_print_node_pathname(handle, NULL);
			printk("\n");
			return AE_OK;
		}
		status = acpi_evaluate_integer(parent, METHOD_NAME__BBN,
					       NULL, &bbn);
		if (ACPI_FAILURE(status)) {
			printk(KERN_ERR
			  "%s: Failed to find _BBN in parent of: ",
					__FUNCTION__);
			acpi_ns_print_node_pathname(handle, NULL);
			printk("\n");
			return AE_OK;
		}

                slot = (adr >> 16) & 0xffff;
                function = adr & 0xffff;
                devfn = PCI_DEVFN(slot, function);
                if ((info->devfn == devfn) && (info->bus == bbn)) {
			/* We have a match! */
			info->handle = handle;
			return 1;
		}
	list_for_each_entry(pci_dev, &bus->devices, bus_list) {
		sn_pci_fixup_slot(pci_dev);
	}
	return AE_OK;
}

/*
 * sn_acpi_slot_fixup - Perform any SN specific slot fixup.
 * sn_acpi_get_pcidev_info - Search ACPI namespace for the acpi
 *			     device matching the specified pci_dev,
 *			     and return the pcidev info and irq info.
 */
int
sn_acpi_get_pcidev_info(struct pci_dev *dev, struct pcidev_info **pcidev_info,
			struct sn_irq_info **sn_irq_info)
{
	unsigned int host_devfn;
	struct sn_pcidev_match pcidev_match;
	acpi_handle rootbus_handle;
	unsigned long segment;
	acpi_status status;

	rootbus_handle = PCI_CONTROLLER(dev)->acpi_handle;
        status = acpi_evaluate_integer(rootbus_handle, METHOD_NAME__SEG, NULL,
                                       &segment);
        if (ACPI_SUCCESS(status)) {
		if (segment != pci_domain_nr(dev)) {
			printk(KERN_ERR
			       "%s: Segment number mismatch, 0x%lx vs 0x%x for: ",
			       __FUNCTION__, segment, pci_domain_nr(dev));
			acpi_ns_print_node_pathname(rootbus_handle, NULL);
			printk("\n");
			return 1;
		}
	} else {
		printk(KERN_ERR "%s: Unable to get __SEG from: ",
		       __FUNCTION__);
		acpi_ns_print_node_pathname(rootbus_handle, NULL);
		printk("\n");
		return 1;
	}

	/*
	 * We want to search all devices in this segment/domain
	 * of the ACPI namespace for the matching ACPI device,
	 * which holds the pcidev_info pointer in its vendor resource.
	 */
	pcidev_match.bus = dev->bus->number;
	pcidev_match.devfn = dev->devfn;
	pcidev_match.handle = NULL;

	acpi_walk_namespace(ACPI_TYPE_DEVICE, rootbus_handle, ACPI_UINT32_MAX,
			    find_matching_device, &pcidev_match, NULL);

	if (!pcidev_match.handle) {
		printk(KERN_ERR
		       "%s: Could not find matching ACPI device for %s.\n",
		       __FUNCTION__, pci_name(dev));
		return 1;
	}

	if (sn_extract_device_info(pcidev_match.handle, pcidev_info, sn_irq_info))
		return 1;

	/* Build up the pcidev_info.pdi_slot_host_handle */
	host_devfn = get_host_devfn(pcidev_match.handle, rootbus_handle);
	(*pcidev_info)->pdi_slot_host_handle =
			((unsigned long) pci_domain_nr(dev) << 40) |
					/* bus == 0 */
					host_devfn;
	return 0;
}

/*
 * sn_acpi_slot_fixup - Obtain the pcidev_info and sn_irq_info.
 *			Perform any SN specific slot fixup.
 *			At present there does not appear to be
 *			any generic way to handle a ROM image
 *			that has been shadowed by the PROM, so
@@ -179,11 +408,18 @@ sn_acpi_bus_fixup(struct pci_bus *bus)
 */

void
sn_acpi_slot_fixup(struct pci_dev *dev, struct pcidev_info *pcidev_info)
sn_acpi_slot_fixup(struct pci_dev *dev)
{
	void __iomem *addr;
	struct pcidev_info *pcidev_info = NULL;
	struct sn_irq_info *sn_irq_info = NULL;
	size_t size;

	if (sn_acpi_get_pcidev_info(dev, &pcidev_info, &sn_irq_info)) {
		panic("%s:  Failure obtaining pcidev_info for %s\n",
		      __FUNCTION__, pci_name(dev));
	}

	if (pcidev_info->pdi_pio_mapped_addr[PCI_ROM_RESOURCE]) {
		/*
		 * A valid ROM image exists and has been shadowed by the
@@ -200,8 +436,11 @@ sn_acpi_slot_fixup(struct pci_dev *dev, struct pcidev_info *pcidev_info)
						(unsigned long) addr + size;
		dev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_BIOS_COPY;
	}
	sn_pci_fixup_slot(dev, pcidev_info, sn_irq_info);
}

EXPORT_SYMBOL(sn_acpi_slot_fixup);

static struct acpi_driver acpi_sn_hubdev_driver = {
	.name = "SGI HUBDEV Driver",
	.ids = "SGIHUB,SGITIO",
@@ -211,6 +450,33 @@ static struct acpi_driver acpi_sn_hubdev_driver = {
};


/*
 * sn_acpi_bus_fixup -  Perform SN specific setup of software structs
 *			(pcibus_bussoft, pcidev_info) and hardware
 *			registers, for the specified bus and devices under it.
 */
void
sn_acpi_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 = sn_get_bussoft_ptr(bus);
		if (prom_bussoft_ptr == NULL) {
			printk(KERN_ERR
			       "%s: 0x%04x:0x%02x Unable to "
			       "obtain prom_bussoft_ptr\n",
			       __FUNCTION__, 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_acpi_slot_fixup(pci_dev);
	}
}

/*
 * sn_io_acpi_init - PROM has ACPI support for IO, defining at a minimum the
 *		     nodes and root buses in the DSDT. As a result, bus scanning
+20 −71
Original line number Diff line number Diff line
@@ -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);

@@ -48,16 +44,10 @@ struct sysdata_el {

int sn_ioif_inited;		/* SN I/O infrastructure initialized? */

struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES];	/* indexed by asic type */
int sn_acpi_rev;		/* SN ACPI revision */
EXPORT_SYMBOL_GPL(sn_acpi_rev);

int sn_acpi_base_support(void)
{
	struct acpi_table_header *header;
	(void)acpi_get_table_by_index(ACPI_TABLE_INDEX_DSDT, &header);
	if (header && header->oem_revision >= 0x20101)
		return 1;
	return 0;
}
struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES];	/* indexed by asic type */

/*
 * Hooks and struct for unsupported pci providers
@@ -107,25 +97,6 @@ sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num,
	return ret_stuff.status;
}

/*
 * 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.
@@ -258,47 +229,22 @@ 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;

	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
@@ -498,11 +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)
{
@@ -528,6 +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.
@@ -618,7 +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);
+48 −6
Original line number Diff line number Diff line
@@ -56,6 +56,25 @@ static inline u64 sal_get_pcibus_info(u64 segment, u64 busnum, u64 address)
	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
@@ -172,18 +191,40 @@ sn_pci_window_fixup(struct pci_dev *dev, unsigned int count,
}

/*
 * sn_more_slot_fixup() - We are not running with an ACPI capable PROM,
 * 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_more_slot_fixup(struct pci_dev *dev, struct pcidev_info *pcidev_info)
sn_io_slot_fixup(struct pci_dev *dev)
{
	unsigned int count = 0;
	int idx;
	s64 pci_addrs[PCI_ROM_RESOURCE + 1];
	unsigned long addr, end, size, start;
	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", __FUNCTION__);

	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", __FUNCTION__);

	/* 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));

	if (status)
		BUG(); /* Cannot get platform pci device information */


	/* Copy over PIO Mapped Addresses */
	for (idx = 0; idx <= PCI_ROM_RESOURCE; idx++) {
@@ -219,8 +260,12 @@ sn_more_slot_fixup(struct pci_dev *dev, struct pcidev_info *pcidev_info)
	 */
	if (count > 0)
		sn_pci_window_fixup(dev, count, pci_addrs);

	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.
@@ -272,9 +317,6 @@ sn_bus_fixup(struct pci_bus *bus)
{
	struct pci_dev *pci_dev = NULL;
	struct pcibus_bussoft *prom_bussoft_ptr;
	extern void sn_common_bus_fixup(struct pci_bus *,
					struct pcibus_bussoft *);


	if (!bus->parent) {  /* If root bus */
		prom_bussoft_ptr = PCI_CONTROLLER(bus)->platform_data;
@@ -291,7 +333,7 @@ sn_bus_fixup(struct pci_bus *bus)
					   prom_bussoft_ptr->bs_legacy_mem);
        }
        list_for_each_entry(pci_dev, &bus->devices, bus_list) {
                sn_pci_fixup_slot(pci_dev);
                sn_io_slot_fixup(pci_dev);
        }

}
+4 −2
Original line number Diff line number Diff line
@@ -20,7 +20,8 @@
#include "xtalk/hubdev.h"

int
sal_pcibr_slot_enable(struct pcibus_info *soft, int device, void *resp)
sal_pcibr_slot_enable(struct pcibus_info *soft, int device, void *resp,
                      char **ssdt)
{
	struct ia64_sal_retval ret_stuff;
	u64 busnum;
@@ -32,7 +33,8 @@ sal_pcibr_slot_enable(struct pcibus_info *soft, int device, void *resp)
	segment = soft->pbi_buscommon.bs_persist_segment;
	busnum = soft->pbi_buscommon.bs_persist_busnum;
	SAL_CALL_NOLOCK(ret_stuff, (u64) SN_SAL_IOIF_SLOT_ENABLE, segment,
			busnum, (u64) device, (u64) resp, 0, 0, 0);
			busnum, (u64) device, (u64) resp, (u64)ia64_tpa(ssdt),
			0, 0);

	return (int)ret_stuff.v0;
}
+2 −3
Original line number Diff line number Diff line
@@ -11,8 +11,7 @@

#include "acpi/acglobal.h"

#define SN_ACPI_BASE_SUPPORT()   sn_acpi_base_support()

extern int sn_acpi_base_support(void);
extern int sn_acpi_rev;
#define SN_ACPI_BASE_SUPPORT()   (sn_acpi_rev >= 0x20101)

#endif /* _ASM_IA64_SN_ACPI_H */
Loading