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-rw-r--r--arch/powerpc/include/asm/reg.h1
-rw-r--r--arch/powerpc/kernel/cpu_setup_power.S3
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 5c6fbe2c5ce6..178a85844462 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -272,6 +272,7 @@
#define HFSCR_TAR (1 << (63-55)) /* Enable Target Address Register */
#define HFSCR_TM (1 << (63-58)) /* Enable Transactional Memory */
#define HFSCR_PM (1 << (63-60)) /* Enable prob/priv access to PMU SPRs */
+#define HFSCR_BHRB (1 << (63-59)) /* Enable Branch History Rolling Buffer*/
#define HFSCR_DSCR (1 << (63-61)) /* Enable Data Stream Control Register */
#define HFSCR_VECVSX (1 << (63-62)) /* Enable VMX/VSX */
#define HFSCR_FP (1 << (63-63)) /* Enable Floating Point */
diff --git a/arch/powerpc/kernel/cpu_setup_power.S b/arch/powerpc/kernel/cpu_setup_power.S
index e0c419b8d65b..7b4db965b592 100644
--- a/arch/powerpc/kernel/cpu_setup_power.S
+++ b/arch/powerpc/kernel/cpu_setup_power.S
@@ -129,7 +129,8 @@ __init_FSCR:
__init_HFSCR:
mfspr r3,SPRN_HFSCR
- ori r3,r3,HFSCR_TAR|HFSCR_TM|HFSCR_DSCR|HFSCR_VECVSX|HFSCR_FP|HFSCR_PM
+ ori r3,r3,HFSCR_TAR|HFSCR_TM|HFSCR_BHRB|HFSCR_PM|\
+ HFSCR_DSCR|HFSCR_VECVSX|HFSCR_FP
mtspr SPRN_HFSCR,r3
blr