/*
* Unload a UBA DMA map.
*/
void
uba_bus_dmamap_unload_sgmap(bus_dma_tag_t t, bus_dmamap_t map)
{
/*
* Invalidate any SGMAP page table entries used by this
* mapping.
*/
vax_sgmap_unload(t, map, t->_sgmap);
/*
* Do the generic bits of the unload.
*/
_bus_dmamap_unload(t, map);
}
/*
* unload a DMA map.
*/
void
jazz_bus_dmamap_unload(bus_dma_tag_t t, bus_dmamap_t map)
{
if ((map->_dm_flags & BUS_DMA_ALLOCNOW) != 0) {
/* DMA TLB should be preserved */
map->dm_mapsize = 0;
map->dm_nsegs = 0;
return;
}
jazz_bus_dmamap_free_sgmap(t, map->dm_segs, map->dm_nsegs);
_bus_dmamap_unload(t, map);
}
/*
* Unload a TSP DMA map.
*/
void
tsp_bus_dmamap_unload_sgmap(bus_dma_tag_t t, bus_dmamap_t map)
{
/*
* Invalidate any SGMAP page table entries used by this
* mapping.
*/
pci_sgmap_pte64_unload(t, map, t->_sgmap);
tsp_tlb_invalidate(t->_cookie);
/*
* Do the generic bits of the unload.
*/
_bus_dmamap_unload(t, map);
}
/*
* Unload a MCPCIA DMA map.
*/
void
mcpcia_bus_dmamap_unload_sgmap(bus_dma_tag_t t, bus_dmamap_t map)
{
struct mcpcia_config *ccp = t->_cookie;
/*
* Invalidate any SGMAP page table entries used by this mapping.
*/
pci_sgmap_pte64_unload(t, map, t->_sgmap);
MCPCIA_SGTLB_INVALIDATE(ccp);
/*
* Do the generic bits of the unload.
*/
_bus_dmamap_unload(t, map);
}
/*
* Unload an T2 DMA map.
*/
void
ttwoga_bus_dmamap_unload_sgmap(bus_dma_tag_t t, bus_dmamap_t map)
{
struct ttwoga_config *tcp = t->_cookie;
/*
* Invalidate any SGMAP page table entries used by this
* mapping.
*/
pci_sgmap_pte64_unload(t, map, t->_sgmap);
if (tcp->tc_use_tlb)
TTWOGA_TLB_INVALIDATE(tcp);
/*
* Do the generic bits of the unload.
*/
_bus_dmamap_unload(t, map);
}
/*
* Unload an ISA DMA map.
*/
void
_isa_bus_dmamap_unload(bus_dma_tag_t t, bus_dmamap_t map)
{
struct i386_isa_dma_cookie *cookie = map->_dm_cookie;
/*
* If we have bounce pages, free them, unless they're
* reserved for our exclusive use.
*/
if ((cookie->id_flags & ID_HAS_BOUNCE) &&
(map->_dm_flags & BUS_DMA_ALLOCNOW) == 0)
_isa_dma_free_bouncebuf(t, map);
cookie->id_flags &= ~ID_IS_BOUNCING;
/*
* Do the generic bits of the unload.
*/
_bus_dmamap_unload(t, map);
}
/*
* Unload an Integrator DMA map.
*/
static void
integrator_bus_dmamap_unload(bus_dma_tag_t t, bus_dmamap_t map)
{
struct integrator_dma_cookie *cookie = map->_dm_cookie;
/*
* If we have bounce pages, free them, unless they're
* reserved for our exclusive use.
*/
if ((cookie->id_flags & ID_HAS_BOUNCE) &&
(map->_dm_flags & BUS_DMA_ALLOCNOW) == 0)
integrator_dma_free_bouncebuf(t, map);
cookie->id_flags &= ~ID_IS_BOUNCING;
cookie->id_buftype = ID_BUFTYPE_INVALID;
/*
* Do the generic bits of the unload.
*/
_bus_dmamap_unload(t, map);
}