Commit bc32057e authored by Alexey Kardashevskiy's avatar Alexey Kardashevskiy Committed by Benjamin Herrenschmidt
Browse files

powerpc/powernv: Use it_page_shift in TCE build

This makes use of iommu_table::it_page_shift instead of TCE_SHIFT and
TCE_RPN_SHIFT hardcoded values.
Signed-off-by: default avatarAlexey Kardashevskiy <>
Signed-off-by: default avatarBenjamin Herrenschmidt <>
parent b0376c9b
......@@ -564,10 +564,11 @@ static int pnv_tce_build(struct iommu_table *tbl, long index, long npages,
proto_tce |= TCE_PCI_WRITE;
tces = tcep = ((__be64 *)tbl->it_base) + index - tbl->it_offset;
rpn = __pa(uaddr) >> TCE_SHIFT;
rpn = __pa(uaddr) >> tbl->it_page_shift;
while (npages--)
*(tcep++) = cpu_to_be64(proto_tce | (rpn++ << TCE_RPN_SHIFT));
*(tcep++) = cpu_to_be64(proto_tce |
(rpn++ << tbl->it_page_shift));
/* Some implementations won't cache invalid TCEs and thus may not
* need that flush. We'll probably turn it_type into a bit mask
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment