Commit b3162f22 authored by Alexey Kardashevskiy's avatar Alexey Kardashevskiy Committed by David Gibson
Browse files

spapr_pci: Add and export DMA resetting helper 



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: default avatarAlexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
parent acf1b6dd

hw/ppc/spapr_pci.c

+8 −2
Original line number Diff line number Diff line
@@ -1485,9 +1485,8 @@ 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->nb_table) {
@@ -1497,6 +1496,13 @@ 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);

include/hw/pci-host/spapr.h

+2 −0
Original line number Diff line number Diff line
@@ -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__ */