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authorTodd Poynor <toddpoynor@google.com>2013-03-13 17:35:08 -0700
committerTodd Poynor <toddpoynor@google.com>2013-03-13 17:35:08 -0700
commit1249d25539343d1a7fe361c8d40be7a5df5b0216 (patch)
tree770c9a33604bb00c62f44d780aefab27e4eb9379 /arch/parisc/kernel/cache.c
parent4aad13d07babf68c1d0d37ff1e5f797573c4fd2a (diff)
parent0b203ab4aacdb6e6dfb8c277aa290f0a02428e6f (diff)
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Merge branch 'android-3.0' into android-omap-3.0
Diffstat (limited to 'arch/parisc/kernel/cache.c')
-rw-r--r--arch/parisc/kernel/cache.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 83335f3..5241698 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -421,6 +421,24 @@ void kunmap_parisc(void *addr)
EXPORT_SYMBOL(kunmap_parisc);
#endif
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+ unsigned long flags;
+
+ /* Note: purge_tlb_entries can be called at startup with
+ no context. */
+
+ /* Disable preemption while we play with %sr1. */
+ preempt_disable();
+ mtsp(mm->context, 1);
+ purge_tlb_start(flags);
+ pdtlb(addr);
+ pitlb(addr);
+ purge_tlb_end(flags);
+ preempt_enable();
+}
+EXPORT_SYMBOL(purge_tlb_entries);
+
void __flush_tlb_range(unsigned long sid, unsigned long start,
unsigned long end)
{