diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2013-07-12 12:34:42 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2013-07-12 12:34:42 +0200 |
| commit | f2006e27396f55276f24434f56e208d86e7f9908 (patch) | |
| tree | 71896db916d33888b4286f80117d3cac0da40e6d /arch/powerpc/include/asm/switch_to.h | |
| parent | e399eb56a6110e13f97e644658648602e2b08de7 (diff) | |
| parent | 9903883f1dd6e86f286b7bfa6e4b423f98c1cd9e (diff) | |
Merge branch 'linus' into timers/urgent
Get upstream changes so we can apply fixes against them
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/powerpc/include/asm/switch_to.h')
| -rw-r--r-- | arch/powerpc/include/asm/switch_to.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h index 200d763a0a6..49a13e0ef23 100644 --- a/arch/powerpc/include/asm/switch_to.h +++ b/arch/powerpc/include/asm/switch_to.h @@ -67,4 +67,18 @@ static inline void flush_spe_to_thread(struct task_struct *t) } #endif +static inline void clear_task_ebb(struct task_struct *t) +{ +#ifdef CONFIG_PPC_BOOK3S_64 + /* EBB perf events are not inherited, so clear all EBB state. */ + t->thread.bescr = 0; + t->thread.mmcr2 = 0; + t->thread.mmcr0 = 0; + t->thread.siar = 0; + t->thread.sdar = 0; + t->thread.sier = 0; + t->thread.used_ebb = 0; +#endif +} + #endif /* _ASM_POWERPC_SWITCH_TO_H */ |