[PATCH] powerpc/pseries: Fix TCE building with 64k pagesize

Must adjust tcenum and npages by TCE_PAGE_FACTOR to convert between
64KB pages and TCE (4K) pages.  (This is done in other places, except
for this one location.)

Signed-off-by: Michal Ostrowski <mostrows at watson ibm com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 6 insertions, 3 deletions

diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index c78f2b290a73..fa1edbdcf88c 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -109,6 +109,9 @@ static void tce_build_pSeriesLP(struct iommu_table *tbl, long tcenum,
         u64 rc;
         union tce_entry tce;
 
+        tcenum <<= TCE_PAGE_FACTOR;
+        npages <<= TCE_PAGE_FACTOR;
+
         tce.te_word = 0;
         tce.te_rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
         tce.te_rdwr = 1;
@@ -143,9 +146,6 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
         union tce_entry tce, *tcep;
         long l, limit;
 
-        tcenum <<= TCE_PAGE_FACTOR;
-        npages <<= TCE_PAGE_FACTOR;
-
         if (npages == 1)
                 return tce_build_pSeriesLP(tbl, tcenum, npages, uaddr,
                                            direction);
@@ -164,6 +164,9 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
                 __get_cpu_var(tce_page) = tcep;
         }
 
+        tcenum <<= TCE_PAGE_FACTOR;
+        npages <<= TCE_PAGE_FACTOR;
+
         tce.te_word = 0;
         tce.te_rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
         tce.te_rdwr = 1;