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authorLinus Torvalds <torvalds@g5.osdl.org>2006-11-08 10:09:28 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-11-08 10:09:28 -0800
commitde8e7c12430a73654ae3cedbc45428d56c6b777b (patch)
tree8e3aae09307687296d08282df3e027fa12402e35
parent464908d7e2a9f77cb50ee905cda8a59e5b4e50e4 (diff)
Revert "[PATCH] i386: Add MMCFG resources to i386 too"
This reverts commit de09bddb9d6f96785be470c832b881e6d72d589f. It tried to reserve the MMCONFIG mmio memory ranges, but since the MMCONFIG information is broken and often bogus (which is why we don't dare use it most of the time _anyway_), it does more harm than good. Cc: Jeff Chua <jeff.chua.linux@gmail.com> Cc: Adrian Bunk <bunk@stusta.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--arch/i386/pci/mmconfig.c35
1 files changed, 0 insertions, 35 deletions
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index d0c3da3aa2a..c6b6d9bbc45 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -154,38 +154,6 @@ 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
@@ -222,8 +190,6 @@ static __init void unreachable_devices(void)
}
}
-
-
void __init pci_mmcfg_init(int type)
{
if ((pci_probe & PCI_PROBE_MMCONF) == 0)
@@ -251,5 +217,4 @@ void __init pci_mmcfg_init(int type)
pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;
unreachable_devices();
- pci_mmcfg_insert_resources();
}