[deliverable/linux.git] / arch / x86 / pci / common.c

/*
 *	Low-Level PCI Support for PC
 *
 *	(c) 1999--2000 Martin Mares <mj@ucw.cz>
 */

#include <linux/sched.h>
#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/dmi.h>

#include <asm/acpi.h>
#include <asm/segment.h>
#include <asm/io.h>
#include <asm/smp.h>

#include "pci.h"

unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
				PCI_PROBE_MMCONF;

static int pci_bf_sort;
int pci_routeirq;
int pcibios_last_bus = -1;
unsigned long pirq_table_addr;
struct pci_bus *pci_root_bus;
struct pci_raw_ops *raw_pci_ops;

static int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value)
{
	return raw_pci_ops->read(pci_domain_nr(bus), bus->number,
				 devfn, where, size, value);
}

static int pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value)
{
	return raw_pci_ops->write(pci_domain_nr(bus), bus->number,
				  devfn, where, size, value);
}

struct pci_ops pci_root_ops = {
	.read = pci_read,
	.write = pci_write,
};

/*
 * legacy, numa, and acpi all want to call pcibios_scan_root
 * from their initcalls. This flag prevents that.
 */
int pcibios_scanned;

/*
 * This interrupt-safe spinlock protects all accesses to PCI
 * configuration space.
 */
DEFINE_SPINLOCK(pci_config_lock);

/*
 * Several buggy motherboards address only 16 devices and mirror
 * them to next 16 IDs. We try to detect this `feature' on all
 * primary buses (those containing host bridges as they are
 * expected to be unique) and remove the ghost devices.
 */

static void __devinit pcibios_fixup_ghosts(struct pci_bus *b)
{
	struct list_head *ln, *mn;
	struct pci_dev *d, *e;
	int mirror = PCI_DEVFN(16,0);
	int seen_host_bridge = 0;
	int i;

	DBG("PCI: Scanning for ghost devices on bus %d\n", b->number);
	list_for_each(ln, &b->devices) {
		d = pci_dev_b(ln);
		if ((d->class >> 8) == PCI_CLASS_BRIDGE_HOST)
			seen_host_bridge++;
		for (mn=ln->next; mn != &b->devices; mn=mn->next) {
			e = pci_dev_b(mn);
			if (e->devfn != d->devfn + mirror ||
			    e->vendor != d->vendor ||
			    e->device != d->device ||
			    e->class != d->class)
				continue;
			for(i=0; i<PCI_NUM_RESOURCES; i++)
				if (e->resource[i].start != d->resource[i].start ||
				    e->resource[i].end != d->resource[i].end ||
				    e->resource[i].flags != d->resource[i].flags)
					continue;
			break;
		}
		if (mn == &b->devices)
			return;
	}
	if (!seen_host_bridge)
		return;
	printk(KERN_WARNING "PCI: Ignoring ghost devices on bus %02x\n", b->number);

	ln = &b->devices;
	while (ln->next != &b->devices) {
		d = pci_dev_b(ln->next);
		if (d->devfn >= mirror) {
			list_del(&d->global_list);
			list_del(&d->bus_list);
			kfree(d);
		} else
			ln = ln->next;
	}
}

static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
{
	struct resource *rom_r = &dev->resource[PCI_ROM_RESOURCE];

	if (rom_r->parent)
		return;
	if (rom_r->start)
		/* we deal with BIOS assigned ROM later */
		return;
	if (!(pci_probe & PCI_ASSIGN_ROMS))
		rom_r->start = rom_r->end = rom_r->flags = 0;
}

/*
 *  Called after each bus is probed, but before its children
 *  are examined.
 */

void __devinit  pcibios_fixup_bus(struct pci_bus *b)
{
	struct pci_dev *dev;

	pcibios_fixup_ghosts(b);
	pci_read_bridge_bases(b);
	list_for_each_entry(dev, &b->devices, bus_list)
		pcibios_fixup_device_resources(dev);
}

/*
 * Only use DMI information to set this if nothing was passed
 * on the kernel command line (which was parsed earlier).
 */

static int __devinit set_bf_sort(const struct dmi_system_id *d)
{
	if (pci_bf_sort == pci_bf_sort_default) {
		pci_bf_sort = pci_dmi_bf;
		printk(KERN_INFO "PCI: %s detected, enabling pci=bfsort.\n", d->ident);
	}
	return 0;
}

/*
 * Enable renumbering of PCI bus# ranges to reach all PCI busses (Cardbus)
 */
#ifdef __i386__
static int __devinit assign_all_busses(const struct dmi_system_id *d)
{
	pci_probe |= PCI_ASSIGN_ALL_BUSSES;
	printk(KERN_INFO "%s detected: enabling PCI bus# renumbering"
			" (pci=assign-busses)\n", d->ident);
	return 0;
}
#endif

static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
#ifdef __i386__
/*
 * Laptops which need pci=assign-busses to see Cardbus cards
 */
	{
		.callback = assign_all_busses,
		.ident = "Samsung X20 Laptop",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Samsung Electronics"),
			DMI_MATCH(DMI_PRODUCT_NAME, "SX20S"),
		},
	},
#endif		/* __i386__ */
	{
		.callback = set_bf_sort,
		.ident = "Dell PowerEdge 1950",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1950"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "Dell PowerEdge 1955",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1955"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "Dell PowerEdge 2900",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2900"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "Dell PowerEdge 2950",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2950"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "Dell PowerEdge R900",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R900"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant BL20p G3",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL20p G3"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant BL20p G4",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL20p G4"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant BL30p G1",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL30p G1"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant BL25p G1",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL25p G1"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant BL35p G1",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL35p G1"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant BL45p G1",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL45p G1"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant BL45p G2",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL45p G2"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant BL460c G1",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL460c G1"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant BL465c G1",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL465c G1"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant BL480c G1",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL480c G1"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant BL685c G1",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL685c G1"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant DL385 G2",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL385 G2"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant DL585 G2",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"),
		},
	},
#ifdef __i386__
	{
		.callback = assign_all_busses,
		.ident = "Compaq EVO N800c",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
			DMI_MATCH(DMI_PRODUCT_NAME, "EVO N800c"),
		},
	},
#endif
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant DL385 G2",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL385 G2"),
		},
	},
	{
		.callback = set_bf_sort,
		.ident = "HP ProLiant DL585 G2",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"),
		},
	},
	{}
};

struct pci_bus * __devinit pcibios_scan_root(int busnum)
{
	struct pci_bus *bus = NULL;
	struct pci_sysdata *sd;

	dmi_check_system(pciprobe_dmi_table);

	while ((bus = pci_find_next_bus(bus)) != NULL) {
		if (bus->number == busnum) {
			/* Already scanned */
			return bus;
		}
	}

	/* Allocate per-root-bus (not per bus) arch-specific data.
	 * TODO: leak; this memory is never freed.
	 * It's arguable whether it's worth the trouble to care.
	 */
	sd = kzalloc(sizeof(*sd), GFP_KERNEL);
	if (!sd) {
		printk(KERN_ERR "PCI: OOM, not probing PCI bus %02x\n", busnum);
		return NULL;
	}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Low-Level PCI Support for PC
	3	*
	4	* (c) 1999--2000 Martin Mares <mj@ucw.cz>
	5	*/
	6
	7	#include <linux/sched.h>
	8	#include <linux/pci.h>
	9	#include <linux/ioport.h>
	10	#include <linux/init.h>
8c4b2cf9	11	#include <linux/dmi.h>
1da177e4 LT	12
	13	#include <asm/acpi.h>
	14	#include <asm/segment.h>
	15	#include <asm/io.h>
	16	#include <asm/smp.h>
	17
	18	#include "pci.h"
	19
1da177e4 LT	20	unsigned int pci_probe = PCI_PROBE_BIOS \| PCI_PROBE_CONF1 \| PCI_PROBE_CONF2 \|
	21	PCI_PROBE_MMCONF;
	22
2b290da0	23	static int pci_bf_sort;
1da177e4 LT	24	int pci_routeirq;
1da177e4 LT	25	int pcibios_last_bus = -1;
120bb424	26	unsigned long pirq_table_addr;
120bb424	27	struct pci_bus *pci_root_bus;
1da177e4 LT	28	struct pci_raw_ops *raw_pci_ops;
	29
	30	static int pci_read(struct pci_bus bus, unsigned int devfn, int where, int size, u32 value)
	31	{
a79e4198 JG	32	return raw_pci_ops->read(pci_domain_nr(bus), bus->number,
a79e4198 JG	33	devfn, where, size, value);
1da177e4 LT	34	}
	35
	36	static int pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value)
	37	{
a79e4198 JG	38	return raw_pci_ops->write(pci_domain_nr(bus), bus->number,
a79e4198 JG	39	devfn, where, size, value);
1da177e4 LT	40	}
	41
	42	struct pci_ops pci_root_ops = {
	43	.read = pci_read,
	44	.write = pci_write,
	45	};
	46
	47	/*
	48	* legacy, numa, and acpi all want to call pcibios_scan_root
	49	* from their initcalls. This flag prevents that.
	50	*/
	51	int pcibios_scanned;
	52
	53	/*
	54	* This interrupt-safe spinlock protects all accesses to PCI
	55	* configuration space.
	56	*/
	57	DEFINE_SPINLOCK(pci_config_lock);
	58
	59	/*
	60	* Several buggy motherboards address only 16 devices and mirror
	61	* them to next 16 IDs. We try to detect this `feature' on all
	62	* primary buses (those containing host bridges as they are
	63	* expected to be unique) and remove the ghost devices.
	64	*/
	65
	66	static void __devinit pcibios_fixup_ghosts(struct pci_bus *b)
	67	{
	68	struct list_head ln, mn;
	69	struct pci_dev d, e;
	70	int mirror = PCI_DEVFN(16,0);
	71	int seen_host_bridge = 0;
	72	int i;
	73
	74	DBG("PCI: Scanning for ghost devices on bus %d\n", b->number);
	75	list_for_each(ln, &b->devices) {
	76	d = pci_dev_b(ln);
	77	if ((d->class >> 8) == PCI_CLASS_BRIDGE_HOST)
	78	seen_host_bridge++;
	79	for (mn=ln->next; mn != &b->devices; mn=mn->next) {
	80	e = pci_dev_b(mn);
	81	if (e->devfn != d->devfn + mirror \|\|
	82	e->vendor != d->vendor \|\|
	83	e->device != d->device \|\|
	84	e->class != d->class)
	85	continue;
	86	for(i=0; i<PCI_NUM_RESOURCES; i++)
	87	if (e->resource[i].start != d->resource[i].start \|\|
	88	e->resource[i].end != d->resource[i].end \|\|
	89	e->resource[i].flags != d->resource[i].flags)
	90	continue;
	91	break;
	92	}
	93	if (mn == &b->devices)
	94	return;
	95	}
	96	if (!seen_host_bridge)
	97	return;
	98	printk(KERN_WARNING "PCI: Ignoring ghost devices on bus %02x\n", b->number);
	99
	100	ln = &b->devices;
	101	while (ln->next != &b->devices) {
	102	d = pci_dev_b(ln->next);
	103	if (d->devfn >= mirror) {
104	list_del(&d->global_list);
105	list_del(&d->bus_list);
106	kfree(d);
107	} else
108	ln = ln->next;
109	}
110	}
111
9f8dacca GH	112	static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
	113	{
	114	struct resource *rom_r = &dev->resource[PCI_ROM_RESOURCE];
	115
	116	if (rom_r->parent)
	117	return;
	118	if (rom_r->start)
	119	/* we deal with BIOS assigned ROM later */
	120	return;
	121	if (!(pci_probe & PCI_ASSIGN_ROMS))
	122	rom_r->start = rom_r->end = rom_r->flags = 0;
	123	}
	124
1da177e4 LT	125	/*
	126	* Called after each bus is probed, but before its children
	127	* are examined.
	128	*/
	129
	130	void __devinit pcibios_fixup_bus(struct pci_bus *b)
	131	{
9f8dacca GH	132	struct pci_dev *dev;
9f8dacca GH	133
1da177e4 LT	134	pcibios_fixup_ghosts(b);
1da177e4 LT	135	pci_read_bridge_bases(b);
9f8dacca GH	136	list_for_each_entry(dev, &b->devices, bus_list)
9f8dacca GH	137	pcibios_fixup_device_resources(dev);
1da177e4 LT	138	}
1da177e4 LT	139
6b4b78fe MD	140	/*
	141	* Only use DMI information to set this if nothing was passed
	142	* on the kernel command line (which was parsed earlier).
	143	*/
	144
1855256c	145	static int __devinit set_bf_sort(const struct dmi_system_id *d)
6b4b78fe MD	146	{
	147	if (pci_bf_sort == pci_bf_sort_default) {
	148	pci_bf_sort = pci_dmi_bf;
	149	printk(KERN_INFO "PCI: %s detected, enabling pci=bfsort.\n", d->ident);
	150	}
	151	return 0;
	152	}
	153
8c4b2cf9 BK	154	/*
	155	* Enable renumbering of PCI bus# ranges to reach all PCI busses (Cardbus)
	156	*/
	157	#ifdef __i386__
1855256c	158	static int __devinit assign_all_busses(const struct dmi_system_id *d)
8c4b2cf9 BK	159	{
	160	pci_probe \|= PCI_ASSIGN_ALL_BUSSES;
	161	printk(KERN_INFO "%s detected: enabling PCI bus# renumbering"
	162	" (pci=assign-busses)\n", d->ident);
	163	return 0;
	164	}
	165	#endif
	166
6b4b78fe MD	167	static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
6b4b78fe MD	168	#ifdef __i386__
8c4b2cf9 BK	169	/*
	170	* Laptops which need pci=assign-busses to see Cardbus cards
	171	*/
8c4b2cf9 BK	172	{
	173	.callback = assign_all_busses,
	174	.ident = "Samsung X20 Laptop",
	175	.matches = {
	176	DMI_MATCH(DMI_SYS_VENDOR, "Samsung Electronics"),
	177	DMI_MATCH(DMI_PRODUCT_NAME, "SX20S"),
	178	},
	179	},
	180	#endif /* __i386__ */
6b4b78fe MD	181	{
	182	.callback = set_bf_sort,
	183	.ident = "Dell PowerEdge 1950",
	184	.matches = {
	185	DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
	186	DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1950"),
	187	},
	188	},
	189	{
	190	.callback = set_bf_sort,
	191	.ident = "Dell PowerEdge 1955",
	192	.matches = {
	193	DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
	194	DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1955"),
	195	},
	196	},
	197	{
	198	.callback = set_bf_sort,
	199	.ident = "Dell PowerEdge 2900",
	200	.matches = {
	201	DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
	202	DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2900"),
	203	},
	204	},
	205	{
	206	.callback = set_bf_sort,
	207	.ident = "Dell PowerEdge 2950",
	208	.matches = {
	209	DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
	210	DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2950"),
	211	},
	212	},
f7a9dae7 MD	213	{
	214	.callback = set_bf_sort,
	215	.ident = "Dell PowerEdge R900",
	216	.matches = {
	217	DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
	218	DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R900"),
	219	},
	220	},
f52383d3 AG	221	{
	222	.callback = set_bf_sort,
	223	.ident = "HP ProLiant BL20p G3",
	224	.matches = {
	225	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
	226	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL20p G3"),
	227	},
	228	},
	229	{
	230	.callback = set_bf_sort,
	231	.ident = "HP ProLiant BL20p G4",
	232	.matches = {
	233	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
	234	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL20p G4"),
	235	},
	236	},
	237	{
	238	.callback = set_bf_sort,
	239	.ident = "HP ProLiant BL30p G1",
	240	.matches = {
	241	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
	242	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL30p G1"),
	243	},
	244	},
	245	{
	246	.callback = set_bf_sort,
	247	.ident = "HP ProLiant BL25p G1",
	248	.matches = {
	249	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
	250	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL25p G1"),
	251	},
	252	},
	253	{
	254	.callback = set_bf_sort,
	255	.ident = "HP ProLiant BL35p G1",
	256	.matches = {
	257	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
	258	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL35p G1"),
	259	},
	260	},
	261	{
	262	.callback = set_bf_sort,
	263	.ident = "HP ProLiant BL45p G1",
	264	.matches = {
	265	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
	266	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL45p G1"),
	267	},
	268	},
	269	{
	270	.callback = set_bf_sort,
	271	.ident = "HP ProLiant BL45p G2",
	272	.matches = {
	273	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
	274	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL45p G2"),
	275	},
	276	},
	277	{
	278	.callback = set_bf_sort,
	279	.ident = "HP ProLiant BL460c G1",
	280	.matches = {
	281	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
	282	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL460c G1"),
	283	},
	284	},
285	{
286	.callback = set_bf_sort,
287	.ident = "HP ProLiant BL465c G1",
288	.matches = {
289	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
290	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL465c G1"),
291	},
292	},
293	{
294	.callback = set_bf_sort,
295	.ident = "HP ProLiant BL480c G1",
296	.matches = {
297	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
298	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL480c G1"),
299	},
300	},
301	{
302	.callback = set_bf_sort,
303	.ident = "HP ProLiant BL685c G1",
304	.matches = {
305	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
306	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL685c G1"),
307	},
308	},
8f8ae1a7 MS	309	{
	310	.callback = set_bf_sort,
	311	.ident = "HP ProLiant DL385 G2",
	312	.matches = {
	313	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
	314	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL385 G2"),
	315	},
	316	},
	317	{
	318	.callback = set_bf_sort,
	319	.ident = "HP ProLiant DL585 G2",
	320	.matches = {
	321	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
	322	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"),
	323	},
	324	},
5b1ea82f JL	325	#ifdef __i386__
	326	{
	327	.callback = assign_all_busses,
	328	.ident = "Compaq EVO N800c",
	329	.matches = {
	330	DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
	331	DMI_MATCH(DMI_PRODUCT_NAME, "EVO N800c"),
	332	},
	333	},
	334	#endif
c82bc5ad MS	335	{
	336	.callback = set_bf_sort,
	337	.ident = "HP ProLiant DL385 G2",
	338	.matches = {
	339	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
	340	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL385 G2"),
	341	},
	342	},
	343	{
	344	.callback = set_bf_sort,
	345	.ident = "HP ProLiant DL585 G2",
	346	.matches = {
	347	DMI_MATCH(DMI_SYS_VENDOR, "HP"),
	348	DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"),
	349	},
	350	},
8c4b2cf9 BK	351	{}
8c4b2cf9 BK	352	};
1da177e4 LT	353
	354	struct pci_bus * __devinit pcibios_scan_root(int busnum)
	355	{
	356	struct pci_bus *bus = NULL;
08f1c192	357	struct pci_sysdata *sd;
1da177e4	358
8c4b2cf9 BK	359	dmi_check_system(pciprobe_dmi_table);
8c4b2cf9 BK	360
1da177e4 LT	361	while ((bus = pci_find_next_bus(bus)) != NULL) {
	362	if (bus->number == busnum) {
	363	/* Already scanned */
	364	return bus;
	365	}
	366	}
	367
08f1c192 MBY	368	/* Allocate per-root-bus (not per bus) arch-specific data.
	369	* TODO: leak; this memory is never freed.
	370	* It's arguable whether it's worth the trouble to care.
	371	*/
	372	sd = kzalloc(sizeof(*sd), GFP_KERNEL);
	373	if (!sd) {
	374	printk(KERN_ERR "PCI: OOM, not probing PCI bus %02x\n", busnum);
	375	return NULL;
	376	}
	377