powerpc/powernv: Fix condition for when to invalidate the TCE cache

We use two flags, one to indicate an invalidation is needed after
creating a new entry and one to indicate an invalidation is needed
after removing an entry. However we were testing the wrong flag
in the remove case.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index 163bd74..098d357 100644 (file)
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -367,7 +367,7 @@ static void pnv_tce_free(struct iommu_table *tbl, long index, long npages)
        while (npages--)
                *(tcep++) = 0;
 
-       if (tbl->it_type & TCE_PCI_SWINV_CREATE)
+       if (tbl->it_type & TCE_PCI_SWINV_FREE)
                pnv_pci_ioda_tce_invalidate(tbl, tces, tcep - 1);
 }