From cc8b5c96a7ac7d695c2887427b1003bd33ec9c97 Mon Sep 17 00:00:00 2001 From: Michal Ostrowski <mostrows@watson.ibm.com> Date: Fri, 2 Dec 2005 13:09:13 +1100 Subject: [PATCH] [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> --- arch/powerpc/platforms/pseries/iommu.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index c78f2b290a73a..fa1edbdcf88cb 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; -- GitLab