diff options
Diffstat (limited to 'sys/powerpc/pseries/vdevice.c')
| -rw-r--r-- | sys/powerpc/pseries/vdevice.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/sys/powerpc/pseries/vdevice.c b/sys/powerpc/pseries/vdevice.c index 4551106..8ddd531 100644 --- a/sys/powerpc/pseries/vdevice.c +++ b/sys/powerpc/pseries/vdevice.c @@ -41,12 +41,17 @@ __FBSDID("$FreeBSD$"); #include <dev/ofw/ofw_bus.h> #include <dev/ofw/ofw_bus_subr.h> +#include <powerpc/pseries/plpar_iommu.h> + +#include "iommu_if.h" + static int vdevice_probe(device_t); static int vdevice_attach(device_t); static const struct ofw_bus_devinfo *vdevice_get_devinfo(device_t dev, device_t child); static int vdevice_print_child(device_t dev, device_t child); -static struct resource_list *vdevice_get_resource_list (device_t, device_t); +static struct resource_list *vdevice_get_resource_list(device_t, device_t); +static bus_dma_tag_t vdevice_get_dma_tag(device_t dev, device_t child); /* * VDevice devinfo @@ -54,6 +59,7 @@ static struct resource_list *vdevice_get_resource_list (device_t, device_t); struct vdevice_devinfo { struct ofw_bus_devinfo mdi_obdinfo; struct resource_list mdi_resources; + bus_dma_tag_t mdi_dma_tag; }; static device_method_t vdevice_methods[] = { @@ -81,6 +87,11 @@ static device_method_t vdevice_methods[] = { DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), + /* IOMMU interface */ + DEVMETHOD(bus_get_dma_tag, vdevice_get_dma_tag), + DEVMETHOD(iommu_map, phyp_iommu_map), + DEVMETHOD(iommu_unmap, phyp_iommu_unmap), + DEVMETHOD_END }; @@ -200,3 +211,22 @@ vdevice_get_resource_list (device_t dev, device_t child) return (&dinfo->mdi_resources); } +static bus_dma_tag_t +vdevice_get_dma_tag(device_t dev, device_t child) +{ + struct vdevice_devinfo *dinfo; + while (child != NULL && device_get_parent(child) != dev) + child = device_get_parent(child); + dinfo = device_get_ivars(child); + + if (dinfo->mdi_dma_tag == NULL) { + bus_dma_tag_create(bus_get_dma_tag(dev), + 1, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, + NULL, NULL, BUS_SPACE_MAXSIZE, BUS_SPACE_UNRESTRICTED, + BUS_SPACE_MAXSIZE, 0, NULL, NULL, &dinfo->mdi_dma_tag); + phyp_iommu_set_dma_tag(dev, child, dinfo->mdi_dma_tag); + } + + return (dinfo->mdi_dma_tag); +} + |
