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| author |   Frederic Weisbecker <fweisbec@gmail.com> | 2009-10-18 01:09:09 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-10-18 01:12:33 +0200 |
| commit | 0f8f86c7bdd1c954fbe153af437a0d91a6c5721a (patch) | |
| tree | 94a8d419a470a4f9852ca397bb9bbe48db92ff5c /arch/powerpc/include/asm/mmu_context.h | |
| parent | Merge branch 'linus' into tracing/hw-breakpoints (diff) | |
| parent | perf tools: Move dereference after NULL test (diff) | |
| download | linux-dev-0f8f86c7bdd1c954fbe153af437a0d91a6c5721a.tar.xz linux-dev-0f8f86c7bdd1c954fbe153af437a0d91a6c5721a.zip | |
Merge commit 'perf/core' into perf/hw-breakpoint
Conflicts:
kernel/Makefile
kernel/trace/Makefile
kernel/trace/trace.h
samples/Makefile
Merge reason: We need to be uptodate with the perf events development
branch because we plan to rewrite the breakpoints API on top of
perf events.
Diffstat (limited to 'arch/powerpc/include/asm/mmu_context.h')
| -rw-r--r-- | arch/powerpc/include/asm/mmu_context.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h index b7063669f972..b34e94d94435 100644 --- a/arch/powerpc/include/asm/mmu_context.h +++ b/arch/powerpc/include/asm/mmu_context.h @@ -14,7 +14,6 @@ /* * Most if the context management is out of line */ -extern void mmu_context_init(void); extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm); extern void destroy_context(struct mm_struct *mm); @@ -23,6 +22,12 @@ extern void switch_stab(struct task_struct *tsk, struct mm_struct *mm); extern void switch_slb(struct task_struct *tsk, struct mm_struct *mm); extern void set_context(unsigned long id, pgd_t *pgd); +#ifdef CONFIG_PPC_BOOK3S_64 +static inline void mmu_context_init(void) { } +#else +extern void mmu_context_init(void); +#endif + /* * switch_mm is the entry point called from the architecture independent * code in kernel/sched.c @@ -38,6 +43,10 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, tsk->thread.pgdir = next->pgd; #endif /* CONFIG_PPC32 */ + /* 64-bit Book3E keeps track of current PGD in the PACA */ +#ifdef CONFIG_PPC_BOOK3E_64 + get_paca()->pgd = next->pgd; +#endif /* Nothing else to do if we aren't actually switching */ if (prev == next) return; @@ -84,6 +93,10 @@ static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next) static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) { + /* 64-bit Book3E keeps track of current PGD in the PACA */ +#ifdef CONFIG_PPC_BOOK3E_64 + get_paca()->pgd = NULL; +#endif } #endif /* __KERNEL__ */ |