[kernel,v3,4/5] powerpc/pseries/iommu: Switch to xchg_no_kill
diff mbox series

Message ID 20190829085252.72370-5-aik@ozlabs.ru
State Accepted
Headers show
Series
  • powerpc/powernv/kvm: Invalidate multiple TCEs at once
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Commit Message

Alexey Kardashevskiy Aug. 29, 2019, 8:52 a.m. UTC
This is the last implementation of iommu_table_ops::exchange() which
we are about to remove.

This implements xchg_no_kill() for pseries. Since it is paravirtual
platform, the hypervisor does TCE invalidations and we do not have
to deal with it here, hence no tce_kill() hook.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
Changes:
v3:
* new to the series and it fixes compile error from v2
---
 arch/powerpc/platforms/pseries/iommu.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Patch
diff mbox series

diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 42fb03253334..df7db33ca93b 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -621,7 +621,8 @@  static void pci_dma_bus_setup_pSeries(struct pci_bus *bus)
 
 #ifdef CONFIG_IOMMU_API
 static int tce_exchange_pseries(struct iommu_table *tbl, long index, unsigned
-				long *tce, enum dma_data_direction *direction)
+				long *tce, enum dma_data_direction *direction,
+				bool realmode)
 {
 	long rc;
 	unsigned long ioba = (unsigned long) index << tbl->it_page_shift;
@@ -649,7 +650,7 @@  static int tce_exchange_pseries(struct iommu_table *tbl, long index, unsigned
 struct iommu_table_ops iommu_table_lpar_multi_ops = {
 	.set = tce_buildmulti_pSeriesLP,
 #ifdef CONFIG_IOMMU_API
-	.exchange = tce_exchange_pseries,
+	.xchg_no_kill = tce_exchange_pseries,
 #endif
 	.clear = tce_freemulti_pSeriesLP,
 	.get = tce_get_pSeriesLP