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Commit de09bddb authored by Andi Kleen's avatar Andi Kleen Committed by Andi Kleen
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[PATCH] i386: Add MMCFG resources to i386 too 



Following earlier x86-64 patch

Cc: gregkh@suse.de

Signed-off-by: default avatarAndi Kleen <ak@suse.de>
parent 4c6e052a

arch/i386/pci/mmconfig.c

+35 −0
Original line number Diff line number Diff line
@@ -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();

}