[tip:x86/amd-nb] x86, amd: Enable L3 cache index disable on family 0x15

[tip-bot for Hans Rosenfeld]

Commit-ID:  b453de02b786c63b8928ec822401468131db0a9b
Gitweb:     http://git.kernel.org/tip/b453de02b786c63b8928ec822401468131db0a9b
Author:     Hans Rosenfeld <hans.rosenfeld@xxxxxxx>
AuthorDate: Mon, 24 Jan 2011 16:05:41 +0100
Committer:  Ingo Molnar <mingo@xxxxxxx>
CommitDate: Wed, 26 Jan 2011 08:28:23 +0100

x86, amd: Enable L3 cache index disable on family 0x15

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

Signed-off-by: Hans Rosenfeld <hans.rosenfeld@xxxxxxx>
Cc: <andreas.herrmann3@xxxxxxx>
LKML-Reference: <1295881543-572552-3-git-send-email-hans.rosenfeld@xxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 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 0a99f71..a4f394c 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -85,6 +85,9 @@ 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);
--
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