[PATCH 13/15 -tip] x86: Add cpufeature for Bus configuration

[Jaswinder Singh Rajput]

X86_FEATURE_BUS_CFG : MSRC001_1023 Bus Unit Configuration Register (BU_CFG)

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@xxxxxxxxx>
---
 arch/x86/include/asm/cpufeature.h |    1 +
 arch/x86/kernel/cpu/amd.c         |    2 ++
 2 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 101d8de..aee0978 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -167,6 +167,7 @@
 #define X86_FEATURE_SYS_CFG 	(7*32+ 12) /* System configuration	*/
 #define X86_FEATURE_SMM 	(7*32+ 13) /* System Management	Mode	*/
 #define X86_FEATURE_MM_CFG 	(7*32+ 14) /* MM configuration		*/
+#define X86_FEATURE_BUS_CFG 	(7*32+ 15) /* Bus configuration		*/
 
 /* Virtualization flags: Linux defined */
 #define X86_FEATURE_TPR_SHADOW  (8*32+ 0) /* Intel TPR Shadow */
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index d068044..4b7f7dc 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -497,6 +497,8 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 		set_cpu_cap(c, X86_FEATURE_CACHE_CTL);
 		/* MSRC001_0058 MMIO Configuration Base Address Register*/
 		set_cpu_cap(c, X86_FEATURE_MM_CFG);
+		/* MSRC001_1023 Bus Unit Configuration Register (BU_CFG)*/
+		set_cpu_cap(c, X86_FEATURE_BUS_CFG);
 	}
 }
 
-- 
1.6.0.6



--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/