From d557b09800dab5dd6804e5b79324069abcf0be11 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Sun, 2 Nov 2014 21:15:28 +0530 Subject: powerpc/mm/thp: Use tlbiel if possible If we know that user address space has never executed on other cpus we could use tlbiel. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/mm/pgtable_64.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'arch/powerpc/mm/pgtable_64.c') diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index c175c990580e..eea9fa1f8ae7 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -739,9 +739,10 @@ void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address, void hpte_do_hugepage_flush(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp, unsigned long old_pmd) { - int ssize; + int ssize, local = 0; unsigned int psize; unsigned long vsid; + const struct cpumask *tmp; /* get the base page size,vsid and segment size */ #ifdef CONFIG_DEBUG_VM @@ -762,7 +763,11 @@ void hpte_do_hugepage_flush(struct mm_struct *mm, unsigned long addr, ssize = mmu_kernel_ssize; } - return flush_hash_hugepage(vsid, addr, pmdp, psize, ssize); + tmp = cpumask_of(smp_processor_id()); + if (cpumask_equal(mm_cpumask(mm), tmp)) + local = 1; + + return flush_hash_hugepage(vsid, addr, pmdp, psize, ssize, local); } static pmd_t pmd_set_protbits(pmd_t pmd, pgprot_t pgprot) -- cgit v1.2.3