This adds callbacks definitions which PHB needs to implement in order to support dynamic DMA windows (DDW).
Will be squashed later. Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru> Reviewed-by: David Gibson <da...@gibson.dropbear.id.au> --- include/hw/pci-host/spapr.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/include/hw/pci-host/spapr.h b/include/hw/pci-host/spapr.h index 5c91387..eec95f3 100644 --- a/include/hw/pci-host/spapr.h +++ b/include/hw/pci-host/spapr.h @@ -49,6 +49,27 @@ struct sPAPRPHBClass { PCIHostBridgeClass parent_class; void (*finish_realize)(sPAPRPHBState *sphb, Error **errp); + +/* sPAPR spec defined pagesize mask values */ +#define DDW_PGSIZE_4K 0x01 +#define DDW_PGSIZE_64K 0x02 +#define DDW_PGSIZE_16M 0x04 +#define DDW_PGSIZE_32M 0x08 +#define DDW_PGSIZE_64M 0x10 +#define DDW_PGSIZE_128M 0x20 +#define DDW_PGSIZE_256M 0x40 +#define DDW_PGSIZE_16G 0x80 +#define DDW_PGSIZE_MASK 0xFF + + int (*ddw_query)(sPAPRPHBState *sphb, uint32_t *windows_supported, + uint32_t *page_size_mask, + uint32_t *dma32_window_size, + uint64_t *dma64_window_size); + int (*ddw_create)(sPAPRPHBState *sphb, uint32_t liobn, + uint32_t page_shift, uint32_t window_shift, + sPAPRTCETable **ptcet); + int (*ddw_remove)(sPAPRPHBState *sphb, sPAPRTCETable *tcet); + int (*ddw_reset)(sPAPRPHBState *sphb); }; typedef struct spapr_pci_msi { -- 2.0.0