[Qemu-devel] [PATCH qemu v15 12/17] spapr_pci: Add and export DMA resetting helper

[Alexey Kardashevskiy]

This will be later used by the "ibm,reset-pe-dma-window" RTAS handler
which resets the DMA configuration to the defaults.

Signed-off-by: Alexey Kardashevskiy <address@hidden>
Reviewed-by: David Gibson <address@hidden>
---
 hw/ppc/spapr_pci.c          | 10 ++++++++--
 include/hw/pci-host/spapr.h |  2 ++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index f55efd7..5497a18 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -1483,9 +1483,8 @@ static int spapr_phb_children_reset(Object *child, void 
*opaque)
     return 0;
 }
 
-static void spapr_phb_reset(DeviceState *qdev)
+void spapr_phb_dma_reset(sPAPRPHBState *sphb)
 {
-    sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(qdev);
     sPAPRTCETable *tcet = spapr_tce_find_by_liobn(sphb->dma_liobn);
 
     if (tcet && tcet->enabled) {
@@ -1495,6 +1494,13 @@ static void spapr_phb_reset(DeviceState *qdev)
     /* Register default 32bit DMA window */
     spapr_tce_table_enable(tcet, SPAPR_TCE_PAGE_SHIFT, sphb->dma_win_addr,
                            sphb->dma_win_size >> SPAPR_TCE_PAGE_SHIFT);
+}
+
+static void spapr_phb_reset(DeviceState *qdev)
+{
+    sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(qdev);
+
+    spapr_phb_dma_reset(sphb);
 
     /* Reset the IOMMU state */
     object_child_foreach(OBJECT(qdev), spapr_phb_children_reset, NULL);
diff --git a/include/hw/pci-host/spapr.h b/include/hw/pci-host/spapr.h
index 03ee006..7848366 100644
--- a/include/hw/pci-host/spapr.h
+++ b/include/hw/pci-host/spapr.h
@@ -147,4 +147,6 @@ static inline void spapr_phb_vfio_reset(DeviceState *qdev)
 }
 #endif
 
+void spapr_phb_dma_reset(sPAPRPHBState *sphb);
+
 #endif /* __HW_SPAPR_PCI_H__ */
-- 
2.5.0.rc3