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[PATCH] i386: Add MMCFG resources to i386 too

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Following earlier x86-64 patch

Cc: gregkh@suse.de

Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Andi Kleen 2006-09-26 10:52:40 +02:00 committed by Andi Kleen
parent 4c6e052adf
commit de09bddb9d
1 changed files with 35 additions and 0 deletions
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35
arch/i386/pci/mmconfig.c
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@ -151,6 +151,38 @@ static struct pci_raw_ops pci_mmcfg = {
.write = pci_mmcfg_write, .write = pci_mmcfg_write,
}; };
static __init void pci_mmcfg_insert_resources(void)
{
#define PCI_MMCFG_RESOURCE_NAME_LEN 19
int i;
struct resource *res;
char *names;
unsigned num_buses;
res = kcalloc(PCI_MMCFG_RESOURCE_NAME_LEN + sizeof(*res),
pci_mmcfg_config_num, GFP_KERNEL);
if (!res) {
printk(KERN_ERR "PCI: Unable to allocate MMCONFIG resources\n");
return;
}
names = (void *)&res[pci_mmcfg_config_num];
for (i = 0; i < pci_mmcfg_config_num; i++, res++) {
num_buses = pci_mmcfg_config[i].end_bus_number -
pci_mmcfg_config[i].start_bus_number + 1;
res->name = names;
snprintf(names, PCI_MMCFG_RESOURCE_NAME_LEN, "PCI MMCONFIG %u",
pci_mmcfg_config[i].pci_segment_group_number);
res->start = pci_mmcfg_config[i].base_address;
res->end = res->start + (num_buses << 20) - 1;
res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
insert_resource(&iomem_resource, res);
names += PCI_MMCFG_RESOURCE_NAME_LEN;
}
}
/* K8 systems have some devices (typically in the builtin northbridge) /* K8 systems have some devices (typically in the builtin northbridge)
that are only accessible using type1 that are only accessible using type1
Normally this can be expressed in the MCFG by not listing them Normally this can be expressed in the MCFG by not listing them
@ -187,6 +219,8 @@ static __init void unreachable_devices(void)
} }
} }
void __init pci_mmcfg_init(int type) void __init pci_mmcfg_init(int type)
{ {
if ((pci_probe & PCI_PROBE_MMCONF) == 0) if ((pci_probe & PCI_PROBE_MMCONF) == 0)
@ -214,4 +248,5 @@ void __init pci_mmcfg_init(int type)
pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF; pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;
unreachable_devices(); unreachable_devices();
pci_mmcfg_insert_resources();
} }