Commit 7261b956 authored by Michael Ellerman's avatar Michael Ellerman

powerpc/cell: Fix cell iommu after it_page_shift changes

The patch to add it_page_shift incorrectly changed the increment of
uaddr to use it_page_shift, rather then (1 << it_page_shift).

This broke booting on at least some Cell blades, as the iommu was
basically non-functional.

Fixes: 3a553170 ("powerpc/iommu: Add it_page_shift field to determine iommu page size")
Signed-off-by: default avatarMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent b0dd00ad
...@@ -197,7 +197,7 @@ static int tce_build_cell(struct iommu_table *tbl, long index, long npages, ...@@ -197,7 +197,7 @@ static int tce_build_cell(struct iommu_table *tbl, long index, long npages,
io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset); io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset);
for (i = 0; i < npages; i++, uaddr += tbl->it_page_shift) for (i = 0; i < npages; i++, uaddr += (1 << tbl->it_page_shift))
io_pte[i] = base_pte | (__pa(uaddr) & CBE_IOPTE_RPN_Mask); io_pte[i] = base_pte | (__pa(uaddr) & CBE_IOPTE_RPN_Mask);
mb(); mb();
......
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