* [PATCH] powerpc/powernv: Fix condition for when to invalidate the TCE cache
@ 2013-05-21 3:25 Benjamin Herrenschmidt
0 siblings, 0 replies; only message in thread
From: Benjamin Herrenschmidt @ 2013-05-21 3:25 UTC (permalink / raw)
To: linuxppc-dev
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>
---
arch/powerpc/platforms/powernv/pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index 163bd74..098d357 100644
--- 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);
}
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2013-05-21 3:25 [PATCH] powerpc/powernv: Fix condition for when to invalidate the TCE cache Benjamin Herrenschmidt
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