diff options
| author | Ingo Molnar <mingo@elte.hu> | 2011-05-26 13:51:31 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-05-26 13:51:35 +0200 |
| commit | de66ee979d0ea45171cc2501750e9f9f22f5a690 (patch) | |
| tree | 5ab1a5c6b596b9b786902fb380274e1e1f4ceb13 /arch/powerpc/kernel/process.c | |
| parent | 916f676f8dc016103f983c7ec54c18ecdbb6e349 (diff) | |
| parent | 4db70f73e56961b9bcdfd0c36c62847a18b7dbb5 (diff) | |
Merge branch 'linus' into x86/urgent
Merge reason: we want to queue up a dependent patch.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/powerpc/kernel/process.c')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 095043d79946..91e52df3d81d 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -395,6 +395,9 @@ struct task_struct *__switch_to(struct task_struct *prev, struct thread_struct *new_thread, *old_thread; unsigned long flags; struct task_struct *last; +#ifdef CONFIG_PPC_BOOK3S_64 + struct ppc64_tlb_batch *batch; +#endif #ifdef CONFIG_SMP /* avoid complexity of lazy save/restore of fpu @@ -513,7 +516,17 @@ struct task_struct *__switch_to(struct task_struct *prev, old_thread->accum_tb += (current_tb - start_tb); new_thread->start_tb = current_tb; } -#endif +#endif /* CONFIG_PPC64 */ + +#ifdef CONFIG_PPC_BOOK3S_64 + batch = &__get_cpu_var(ppc64_tlb_batch); + if (batch->active) { + current_thread_info()->local_flags |= _TLF_LAZY_MMU; + if (batch->index) + __flush_tlb_pending(batch); + batch->active = 0; + } +#endif /* CONFIG_PPC_BOOK3S_64 */ local_irq_save(flags); @@ -528,6 +541,14 @@ struct task_struct *__switch_to(struct task_struct *prev, hard_irq_disable(); last = _switch(old_thread, new_thread); +#ifdef CONFIG_PPC_BOOK3S_64 + if (current_thread_info()->local_flags & _TLF_LAZY_MMU) { + current_thread_info()->local_flags &= ~_TLF_LAZY_MMU; + batch = &__get_cpu_var(ppc64_tlb_batch); + batch->active = 1; + } +#endif /* CONFIG_PPC_BOOK3S_64 */ + local_irq_restore(flags); return last; |