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| author | Nitin Gupta <nitin.m.gupta@oracle.com> | 2017-02-24 03:03:16 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-02-24 08:26:21 -0800 |
| commit | ac65e2828d03ddf84e9fe1fb6d110d8de933dc22 (patch) | |
| tree | 3e593687634e118c46cbd1beb684277b79201faf /arch/sparc | |
| parent | cd429ce2d095041d249ec85feaed608bbf72154f (diff) | |
| download | linux-ac65e2828d03ddf84e9fe1fb6d110d8de933dc22.tar.gz linux-ac65e2828d03ddf84e9fe1fb6d110d8de933dc22.tar.xz | |
sparc64: Fix build error in flush_tsb_user_page
Patch "sparc64: Add 64K page size support"
unconditionally used __flush_huge_tsb_one_entry()
which is available only when hugetlb support is
enabled.
Another issue was incorrect TSB flushing for 64K
pages in flush_tsb_user().
Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/mm/hugetlbpage.c | 5 | ||||
| -rw-r--r-- | arch/sparc/mm/tsb.c | 20 |
2 files changed, 19 insertions, 6 deletions
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c index 605bfceb7d54..e98a3f2e8f0f 100644 --- a/arch/sparc/mm/hugetlbpage.c +++ b/arch/sparc/mm/hugetlbpage.c @@ -309,7 +309,7 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, addr &= ~(size - 1); orig = *ptep; - orig_shift = pte_none(orig) ? PAGE_SIZE : huge_tte_to_shift(orig); + orig_shift = pte_none(orig) ? PAGE_SHIFT : huge_tte_to_shift(orig); for (i = 0; i < nptes; i++) ptep[i] = __pte(pte_val(entry) + (i << shift)); @@ -335,7 +335,8 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, else nptes = size >> PAGE_SHIFT; - hugepage_shift = pte_none(entry) ? PAGE_SIZE : huge_tte_to_shift(entry); + hugepage_shift = pte_none(entry) ? PAGE_SHIFT : + huge_tte_to_shift(entry); if (pte_present(entry)) mm->context.hugetlb_pte_count -= nptes; diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c index e39fc57ad850..23479c3d39f0 100644 --- a/arch/sparc/mm/tsb.c +++ b/arch/sparc/mm/tsb.c @@ -120,12 +120,18 @@ void flush_tsb_user(struct tlb_batch *tb) spin_lock_irqsave(&mm->context.lock, flags); - if (tb->hugepage_shift == PAGE_SHIFT) { + if (tb->hugepage_shift < HPAGE_SHIFT) { base = (unsigned long) mm->context.tsb_block[MM_TSB_BASE].tsb; nentries = mm->context.tsb_block[MM_TSB_BASE].tsb_nentries; if (tlb_type == cheetah_plus || tlb_type == hypervisor) base = __pa(base); - __flush_tsb_one(tb, PAGE_SHIFT, base, nentries); + if (tb->hugepage_shift == PAGE_SHIFT) + __flush_tsb_one(tb, PAGE_SHIFT, base, nentries); +#if defined(CONFIG_HUGETLB_PAGE) + else + __flush_huge_tsb_one(tb, PAGE_SHIFT, base, nentries, + tb->hugepage_shift); +#endif } #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE) else if (mm->context.tsb_block[MM_TSB_HUGE].tsb) { @@ -152,8 +158,14 @@ void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr, nentries = mm->context.tsb_block[MM_TSB_BASE].tsb_nentries; if (tlb_type == cheetah_plus || tlb_type == hypervisor) base = __pa(base); - __flush_huge_tsb_one_entry(base, vaddr, PAGE_SHIFT, nentries, - hugepage_shift); + if (hugepage_shift == PAGE_SHIFT) + __flush_tsb_one_entry(base, vaddr, PAGE_SHIFT, + nentries); +#if defined(CONFIG_HUGETLB_PAGE) + else + __flush_huge_tsb_one_entry(base, vaddr, PAGE_SHIFT, + nentries, hugepage_shift); +#endif } #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE) else if (mm->context.tsb_block[MM_TSB_HUGE].tsb) { |