From: Prarit Bhargava <prarit@redhat.com>
Date: Mon, 8 Dec 2008 08:56:47 -0500
Subject: [x86] pci domain: re-enable support on blacklisted boxes
Message-id: 20081208135655.19300.69912.sendpatchset@prarit.bos.redhat.com
O-Subject: [RHEL5.4 PATCH]: Re-enable PCI Domain support on HP xw9400/9300
Bugzilla: 474891
RH-Acked-by: Pete Zaitcev <zaitcev@redhat.com>
RH-Acked-by: Jeff Garzik <jgarzik@redhat.com>

Commit a53f0c7b1bbdaa718cd549aa4929181da90291d3 blacklisted xw9400 and xw9300
systems because they have multiple PCI domains which caused panics during
boot.

With the introduction of PCI Domain support, the blacklisting is no longer
necessary.

Successfully compiled and tested on an xw9400.

Resolves BZ 474891.

diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c
index f49b5b0..f95f0ac 100644
--- a/arch/i386/pci/common.c
+++ b/arch/i386/pci/common.c
@@ -173,16 +173,6 @@ static int __devinit assign_all_busses(struct dmi_system_id *d)
 }
 #endif
 
-#ifdef CONFIG_X86
-static int __devinit disable_pci_seg(struct dmi_system_id *d)
-{
-	pci_noseg = 1;
-	printk(KERN_INFO "%s detected: disabling PCI segments\n", d->ident);
-	return 0;
-}
-#endif
-
-
 static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
 #ifdef __i386__
 /*
@@ -197,22 +187,6 @@ static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
 		},
 	},
 #endif		/* __i386__ */
-#ifdef CONFIG_X86
-	{
-		.callback = disable_pci_seg,
-		.ident = "HP xw9300 Workstation",
-		.matches = {
-			DMI_MATCH(DMI_PRODUCT_NAME, "HP xw9300 Workstation"),
-		},
-	},
-	{
-		.callback = disable_pci_seg,
-		.ident = "HP xw9400 Workstation",
-		.matches = {
-			DMI_MATCH(DMI_PRODUCT_NAME, "HP xw9400 Workstation"),
-		},
-	},
-#endif
 	{
 		.callback = set_bf_sort,
 		.ident = "Dell PowerEdge 1950",