releases/2.6.32.12/x86-cacheinfo-remove-numa-dependency-fix-for-amd-fam10h-rev-d1.patch

From f619b3d8427eb57f0134dab75b0d217325c72411 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <borislav.petkov@amd.com>
Date: Thu, 4 Feb 2010 12:09:07 +0100
Subject: x86, cacheinfo: Remove NUMA dependency, fix for AMD Fam10h rev D1

From: Borislav Petkov <borislav.petkov@amd.com>

commit f619b3d8427eb57f0134dab75b0d217325c72411 upstream.

The show/store_cache_disable routines depend unnecessarily on NUMA's
cpu_to_node and the disabling of cache indices broke when !CONFIG_NUMA.
Remove that dependency by using a helper which is always correct.

While at it, enable L3 Cache Index disable on rev D1 Istanbuls which
sport the feature too.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
LKML-Reference: <20100218184339.GG20473@aftab>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 arch/x86/kernel/cpu/intel_cacheinfo.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -327,7 +327,7 @@ amd_check_l3_disable(int index, struct _
 
 	/* see errata #382 and #388 */
 	if ((boot_cpu_data.x86 == 0x10) &&
-	    ((boot_cpu_data.x86_model < 0x9) ||
+	    ((boot_cpu_data.x86_model < 0x8) ||
 	     (boot_cpu_data.x86_mask  < 0x1)))
 		return;
 
@@ -759,7 +759,7 @@ static ssize_t show_cache_disable(struct
 				  unsigned int index)
 {
 	int cpu = cpumask_first(to_cpumask(this_leaf->shared_cpu_map));
-	int node = cpu_to_node(cpu);
+	int node = amd_get_nb_id(cpu);
 	struct pci_dev *dev = node_to_k8_nb_misc(node);
 	unsigned int reg = 0;
 
@@ -786,7 +786,7 @@ static ssize_t store_cache_disable(struc
 	const char *buf, size_t count, unsigned int index)
 {
 	int cpu = cpumask_first(to_cpumask(this_leaf->shared_cpu_map));
-	int node = cpu_to_node(cpu);
+	int node = amd_get_nb_id(cpu);
 	struct pci_dev *dev = node_to_k8_nb_misc(node);
 	unsigned long val = 0;