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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,
};
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)
that are only accessible using type1
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)
{
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;
unreachable_devices();
pci_mmcfg_insert_resources();
}