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Diffstat (limited to 'arch/sparc/mm/tsb.c')
-rw-r--r--arch/sparc/mm/tsb.c61
1 files changed, 52 insertions, 9 deletions
diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c
index e20fbbafb0b0..23479c3d39f0 100644
--- a/arch/sparc/mm/tsb.c
+++ b/arch/sparc/mm/tsb.c
@@ -86,6 +86,33 @@ static void __flush_tsb_one(struct tlb_batch *tb, unsigned long hash_shift,
__flush_tsb_one_entry(tsb, tb->vaddrs[i], hash_shift, nentries);
}
+#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
+static void __flush_huge_tsb_one_entry(unsigned long tsb, unsigned long v,
+ unsigned long hash_shift,
+ unsigned long nentries,
+ unsigned int hugepage_shift)
+{
+ unsigned int hpage_entries;
+ unsigned int i;
+
+ hpage_entries = 1 << (hugepage_shift - hash_shift);
+ for (i = 0; i < hpage_entries; i++)
+ __flush_tsb_one_entry(tsb, v + (i << hash_shift), hash_shift,
+ nentries);
+}
+
+static void __flush_huge_tsb_one(struct tlb_batch *tb, unsigned long hash_shift,
+ unsigned long tsb, unsigned long nentries,
+ unsigned int hugepage_shift)
+{
+ unsigned long i;
+
+ for (i = 0; i < tb->tlb_nr; i++)
+ __flush_huge_tsb_one_entry(tsb, tb->vaddrs[i], hash_shift,
+ nentries, hugepage_shift);
+}
+#endif
+
void flush_tsb_user(struct tlb_batch *tb)
{
struct mm_struct *mm = tb->mm;
@@ -93,45 +120,61 @@ void flush_tsb_user(struct tlb_batch *tb)
spin_lock_irqsave(&mm->context.lock, flags);
- if (!tb->huge) {
+ 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)
- if (tb->huge && mm->context.tsb_block[MM_TSB_HUGE].tsb) {
+ else if (mm->context.tsb_block[MM_TSB_HUGE].tsb) {
base = (unsigned long) mm->context.tsb_block[MM_TSB_HUGE].tsb;
nentries = mm->context.tsb_block[MM_TSB_HUGE].tsb_nentries;
if (tlb_type == cheetah_plus || tlb_type == hypervisor)
base = __pa(base);
- __flush_tsb_one(tb, REAL_HPAGE_SHIFT, base, nentries);
+ __flush_huge_tsb_one(tb, REAL_HPAGE_SHIFT, base, nentries,
+ tb->hugepage_shift);
}
#endif
spin_unlock_irqrestore(&mm->context.lock, flags);
}
-void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr, bool huge)
+void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr,
+ unsigned int hugepage_shift)
{
unsigned long nentries, base, flags;
spin_lock_irqsave(&mm->context.lock, flags);
- if (!huge) {
+ if (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_entry(base, vaddr, PAGE_SHIFT, nentries);
+ 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)
- if (huge && mm->context.tsb_block[MM_TSB_HUGE].tsb) {
+ else if (mm->context.tsb_block[MM_TSB_HUGE].tsb) {
base = (unsigned long) mm->context.tsb_block[MM_TSB_HUGE].tsb;
nentries = mm->context.tsb_block[MM_TSB_HUGE].tsb_nentries;
if (tlb_type == cheetah_plus || tlb_type == hypervisor)
base = __pa(base);
- __flush_tsb_one_entry(base, vaddr, REAL_HPAGE_SHIFT, nentries);
+ __flush_huge_tsb_one_entry(base, vaddr, REAL_HPAGE_SHIFT,
+ nentries, hugepage_shift);
}
#endif
spin_unlock_irqrestore(&mm->context.lock, flags);