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| author | tmm <tmm@FreeBSD.org> | 2003-01-06 21:59:54 +0000 |
|---|---|---|
| committer | tmm <tmm@FreeBSD.org> | 2003-01-06 21:59:54 +0000 |
| commit | 64ef30fddd206a400119c7364e525bdcd940a3de (patch) | |
| tree | 62a440f3b650bf019a90f1a972512d13433ad63a /sys/sparc64/sbus | |
| parent | eabf06862c56aaa33ce08be99f7aefa90a80fd4b (diff) | |
| download | FreeBSD-src-64ef30fddd206a400119c7364e525bdcd940a3de.zip FreeBSD-src-64ef30fddd206a400119c7364e525bdcd940a3de.tar.gz | |
Change the iommu code to be able to handle more than one DVMA area per
map. Use this new feature to implement iommu_dvmamap_load_mbuf() and
iommu_dvmamap_load_uio() functions in terms of a new helper function,
iommu_dvmamap_load_buffer(). Reimplement the iommu_dvmamap_load()
to use it, too.
This requires some changes to the map format; in addition to that,
remove unused or redundant members.
Add SBus and Psycho wrappers for the new functions, and make them
available through the respective DMA tags.
Diffstat (limited to 'sys/sparc64/sbus')
| -rw-r--r-- | sys/sparc64/sbus/sbus.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/sys/sparc64/sbus/sbus.c b/sys/sparc64/sbus/sbus.c index f050c7c..16b846b 100644 --- a/sys/sparc64/sbus/sbus.c +++ b/sys/sparc64/sbus/sbus.c @@ -237,6 +237,10 @@ static int sbus_dmamap_create(bus_dma_tag_t, bus_dma_tag_t, int, static int sbus_dmamap_destroy(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t); static int sbus_dmamap_load(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t, void *, bus_size_t, bus_dmamap_callback_t *, void *, int); +static int sbus_dmamap_load_mbuf(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t, + struct mbuf *, bus_dmamap_callback2_t *, void *, int); +static int sbus_dmamap_load_uio(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t, + struct uio *, bus_dmamap_callback2_t *, void *, int); static void sbus_dmamap_unload(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t); static void sbus_dmamap_sync(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t, bus_dmasync_op_t); @@ -341,6 +345,8 @@ sbus_probe(device_t dev) sc->sc_cdmatag->dt_dmamap_create = sbus_dmamap_create; sc->sc_cdmatag->dt_dmamap_destroy = sbus_dmamap_destroy; sc->sc_cdmatag->dt_dmamap_load = sbus_dmamap_load; + sc->sc_cdmatag->dt_dmamap_load_mbuf = sbus_dmamap_load_mbuf; + sc->sc_cdmatag->dt_dmamap_load_uio = sbus_dmamap_load_uio; sc->sc_cdmatag->dt_dmamap_unload = sbus_dmamap_unload; sc->sc_cdmatag->dt_dmamap_sync = sbus_dmamap_sync; sc->sc_cdmatag->dt_dmamem_alloc = sbus_dmamem_alloc; @@ -942,6 +948,28 @@ sbus_dmamap_load(bus_dma_tag_t pdmat, bus_dma_tag_t ddmat, bus_dmamap_t map, callback, callback_arg, flags)); } +static int +sbus_dmamap_load_mbuf(bus_dma_tag_t pdmat, bus_dma_tag_t ddmat, + bus_dmamap_t map, struct mbuf *m, bus_dmamap_callback2_t *callback, + void *callback_arg, int flags) +{ + struct sbus_softc *sc = (struct sbus_softc *)pdmat->dt_cookie; + + return (iommu_dvmamap_load_mbuf(pdmat, ddmat, &sc->sc_is, map, m, + callback, callback_arg, flags)); +} + +static int +sbus_dmamap_load_uio(bus_dma_tag_t pdmat, bus_dma_tag_t ddmat, + bus_dmamap_t map, struct uio *uio, bus_dmamap_callback2_t *callback, + void *callback_arg, int flags) +{ + struct sbus_softc *sc = (struct sbus_softc *)pdmat->dt_cookie; + + return (iommu_dvmamap_load_uio(pdmat, ddmat, &sc->sc_is, map, uio, + callback, callback_arg, flags)); +} + static void sbus_dmamap_unload(bus_dma_tag_t pdmat, bus_dma_tag_t ddmat, bus_dmamap_t map) { |
