diff options
Diffstat (limited to 'arch/powerpc/kernel/paca.c')
| -rw-r--r-- | arch/powerpc/kernel/paca.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c index dfc479df9634..e2cf745a4b94 100644 --- a/arch/powerpc/kernel/paca.c +++ b/arch/powerpc/kernel/paca.c @@ -245,3 +245,22 @@ void __init free_unused_pacas(void) free_lppacas(); } + +void copy_mm_to_paca(struct mm_struct *mm) +{ +#ifdef CONFIG_PPC_BOOK3S + mm_context_t *context = &mm->context; + + get_paca()->mm_ctx_id = context->id; +#ifdef CONFIG_PPC_MM_SLICES + get_paca()->mm_ctx_low_slices_psize = context->low_slices_psize; + memcpy(&get_paca()->mm_ctx_high_slices_psize, + &context->high_slices_psize, SLICE_ARRAY_SIZE); +#else /* CONFIG_PPC_MM_SLICES */ + get_paca()->mm_ctx_user_psize = context->user_psize; + get_paca()->mm_ctx_sllp = context->sllp; +#endif +#else /* CONFIG_PPC_BOOK3S */ + return; +#endif +} |