[PATCH 2/4] x86, amd: Enable L3 cache index disable on family 0x15

[Hans Rosenfeld <hans.rosenfeld@amd.com>]

AMD family 0x15 CPUs support L3 cache index disable, so enable it on
them.

Signed-off-by: Hans Rosenfeld <hans.rosenfeld@amd.com>
---
 arch/x86/kernel/amd_nb.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index affacb5..4ce87c2 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -78,6 +78,9 @@ int amd_cache_northbridges(void)
 	     boot_cpu_data.x86_mask >= 0x1))
 		amd_northbridges.flags |= AMD_NB_L3_INDEX_DISABLE;
 
+	if (boot_cpu_data.x86 == 0x15)
+		amd_northbridges.flags |= AMD_NB_L3_INDEX_DISABLE;
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(amd_cache_northbridges);
-- 
1.5.6.5