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authorAndi Kleen <ak@suse.de>2006-09-26 10:52:40 +0200
committerAndi Kleen <andi@basil.nowhere.org>2006-09-26 10:52:40 +0200
commitde09bddb9d6f96785be470c832b881e6d72d589f (patch)
tree62824c61a1db8a6464400f24013811d2f724c80a /arch/i386/pci
parent4c6e052adfe285ede5884e4e8c4d33af33932c13 (diff)
[PATCH] i386: Add MMCFG resources to i386 too
Following earlier x86-64 patch Cc: gregkh@suse.de Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/i386/pci')
-rw-r--r--arch/i386/pci/mmconfig.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index 2c4f585510c..05be8db58a8 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -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();
}