static int radeon_ttm_tt_populate(struct ttm_tt *ttm)
{
struct radeon_device *rdev;
struct radeon_ttm_tt *gtt = (void *)ttm;
unsigned i;
int r, seg;
bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
if (ttm->state != tt_unpopulated)
return 0;
if (slave && ttm->sg) {
#ifdef notyet
drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages,
gtt->ttm.dma_address, ttm->num_pages);
#endif
ttm->state = tt_unbound;
return 0;
}
rdev = radeon_get_rdev(ttm->bdev);
#if __OS_HAS_AGP
if (rdev->flags & RADEON_IS_AGP) {
return ttm_agp_tt_populate(ttm);
}
#endif
#ifdef CONFIG_SWIOTLB
if (swiotlb_nr_tbl()) {
return ttm_dma_populate(>t->ttm, rdev->dev);
}
#endif
r = ttm_pool_populate(ttm);
if (r) {
return r;
}
for (i = 0; i < ttm->num_pages; i++) {
gtt->segs[i].ds_addr = VM_PAGE_TO_PHYS(ttm->pages[i]);
gtt->segs[i].ds_len = PAGE_SIZE;
}
if (bus_dmamap_load_raw(rdev->dmat, gtt->map, gtt->segs,
ttm->num_pages,
ttm->num_pages * PAGE_SIZE, 0)) {
ttm_pool_unpopulate(ttm);
return -EFAULT;
}
for (seg = 0, i = 0; seg < gtt->map->dm_nsegs; seg++) {
bus_addr_t addr = gtt->map->dm_segs[seg].ds_addr;
bus_size_t len = gtt->map->dm_segs[seg].ds_len;
while (len > 0) {
gtt->ttm.dma_address[i++] = addr;
addr += PAGE_SIZE;
len -= PAGE_SIZE;
}
}
return 0;
}
void
oosiop_attach(struct oosiop_softc *sc)
{
struct scsibus_attach_args saa;
bus_size_t scrsize;
bus_dma_segment_t seg;
struct oosiop_cb *cb;
int err, i, nseg;
/*
* Allocate DMA-safe memory for the script and map it.
*/
scrsize = round_page(sizeof(oosiop_script));
err = bus_dmamem_alloc(sc->sc_dmat, scrsize, PAGE_SIZE, 0, &seg, 1,
&nseg, BUS_DMA_NOWAIT | BUS_DMA_ZERO);
if (err) {
printf(": failed to allocate script memory, err=%d\n", err);
return;
}
err = bus_dmamem_map(sc->sc_dmat, &seg, nseg, scrsize,
(caddr_t *)&sc->sc_scr, BUS_DMA_NOWAIT | BUS_DMA_COHERENT);
if (err) {
printf(": failed to map script memory, err=%d\n", err);
return;
}
err = bus_dmamap_create(sc->sc_dmat, scrsize, 1, scrsize, 0,
BUS_DMA_NOWAIT, &sc->sc_scrdma);
if (err) {
printf(": failed to create script map, err=%d\n", err);
return;
}
err = bus_dmamap_load_raw(sc->sc_dmat, sc->sc_scrdma,
&seg, nseg, scrsize, BUS_DMA_NOWAIT | BUS_DMA_WRITE);
if (err) {
printf(": failed to load script map, err=%d\n", err);
return;
}
sc->sc_scrbase = sc->sc_scrdma->dm_segs[0].ds_addr;
/* Initialize command block array */
TAILQ_INIT(&sc->sc_free_cb);
TAILQ_INIT(&sc->sc_cbq);
if (oosiop_alloc_cb(sc, OOSIOP_NCB) != 0)
return;
/* Use first cb to reselection msgin buffer */
cb = TAILQ_FIRST(&sc->sc_free_cb);
sc->sc_reselbuf = cb->xferdma->dm_segs[0].ds_addr +
offsetof(struct oosiop_xfer, msgin[0]);
for (i = 0; i < OOSIOP_NTGT; i++) {
sc->sc_tgt[i].nexus = NULL;
sc->sc_tgt[i].flags = 0;
}
/* Setup asynchronous clock divisor parameters */
if (sc->sc_freq <= 25000000) {
sc->sc_ccf = 10;
sc->sc_dcntl = OOSIOP_DCNTL_CF_1;
} else if (sc->sc_freq <= 37500000) {
sc->sc_ccf = 15;
sc->sc_dcntl = OOSIOP_DCNTL_CF_1_5;
} else if (sc->sc_freq <= 50000000) {
sc->sc_ccf = 20;
sc->sc_dcntl = OOSIOP_DCNTL_CF_2;
} else {
sc->sc_ccf = 30;
sc->sc_dcntl = OOSIOP_DCNTL_CF_3;
}
if (sc->sc_chip == OOSIOP_700)
sc->sc_minperiod = oosiop_period(sc, 4, sc->sc_ccf);
else
sc->sc_minperiod = oosiop_period(sc, 4, 10);
if (sc->sc_minperiod < 25)
sc->sc_minperiod = 25; /* limit to 10MB/s */
mtx_init(&sc->sc_cb_mtx, IPL_BIO);
scsi_iopool_init(&sc->sc_iopool, sc, oosiop_cb_alloc, oosiop_cb_free);
printf(": NCR53C700%s rev %d, %dMHz\n",
sc->sc_chip == OOSIOP_700_66 ? "-66" : "",
oosiop_read_1(sc, OOSIOP_CTEST7) >> 4,
sc->sc_freq / 1000000);
/*
* Reset all
*/
oosiop_reset(sc, TRUE);
oosiop_reset_bus(sc);
/*
* Start SCRIPTS processor
*/
oosiop_load_script(sc);
sc->sc_active = 0;
oosiop_write_4(sc, OOSIOP_DSP, sc->sc_scrbase + Ent_wait_reselect);
/*
* Fill in the sc_link.
*/
sc->sc_link.adapter = &oosiop_adapter;
sc->sc_link.adapter_softc = sc;
sc->sc_link.openings = 1; /* XXX */
sc->sc_link.adapter_buswidth = OOSIOP_NTGT;
sc->sc_link.adapter_target = sc->sc_id;
sc->sc_link.pool = &sc->sc_iopool;
sc->sc_link.quirks = ADEV_NODOORLOCK;
bzero(&saa, sizeof(saa));
saa.saa_sc_link = &sc->sc_link;
/*
* Now try to attach all the sub devices.
*/
config_found(&sc->sc_dev, &saa, scsiprint);
}
int
rtwn_alloc_rx_list(struct rtwn_pci_softc *sc)
{
struct rtwn_rx_ring *rx_ring = &sc->rx_ring;
struct rtwn_rx_data *rx_data;
size_t size;
int i, error = 0;
/* Allocate Rx descriptors. */
size = sizeof(struct r92c_rx_desc_pci) * RTWN_RX_LIST_COUNT;
error = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0, BUS_DMA_NOWAIT,
&rx_ring->map);
if (error != 0) {
printf("%s: could not create rx desc DMA map\n",
sc->sc_dev.dv_xname);
rx_ring->map = NULL;
goto fail;
}
error = bus_dmamem_alloc(sc->sc_dmat, size, 0, 0, &rx_ring->seg, 1,
&rx_ring->nsegs, BUS_DMA_NOWAIT | BUS_DMA_ZERO);
if (error != 0) {
printf("%s: could not allocate rx desc\n",
sc->sc_dev.dv_xname);
goto fail;
}
error = bus_dmamem_map(sc->sc_dmat, &rx_ring->seg, rx_ring->nsegs,
size, (caddr_t *)&rx_ring->desc,
BUS_DMA_NOWAIT | BUS_DMA_COHERENT);
if (error != 0) {
bus_dmamem_free(sc->sc_dmat, &rx_ring->seg, rx_ring->nsegs);
rx_ring->desc = NULL;
printf("%s: could not map rx desc\n", sc->sc_dev.dv_xname);
goto fail;
}
error = bus_dmamap_load_raw(sc->sc_dmat, rx_ring->map, &rx_ring->seg,
1, size, BUS_DMA_NOWAIT);
if (error != 0) {
printf("%s: could not load rx desc\n",
sc->sc_dev.dv_xname);
goto fail;
}
bus_dmamap_sync(sc->sc_dmat, rx_ring->map, 0, size,
BUS_DMASYNC_PREWRITE);
/* Allocate Rx buffers. */
for (i = 0; i < RTWN_RX_LIST_COUNT; i++) {
rx_data = &rx_ring->rx_data[i];
error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES,
0, BUS_DMA_NOWAIT, &rx_data->map);
if (error != 0) {
printf("%s: could not create rx buf DMA map\n",
sc->sc_dev.dv_xname);
goto fail;
}
rx_data->m = MCLGETI(NULL, M_DONTWAIT, NULL, MCLBYTES);
if (rx_data->m == NULL) {
printf("%s: could not allocate rx mbuf\n",
sc->sc_dev.dv_xname);
error = ENOMEM;
goto fail;
}
error = bus_dmamap_load(sc->sc_dmat, rx_data->map,
mtod(rx_data->m, void *), MCLBYTES, NULL,
BUS_DMA_NOWAIT | BUS_DMA_READ);
if (error != 0) {
printf("%s: could not load rx buf DMA map\n",
sc->sc_dev.dv_xname);
goto fail;
}
rtwn_setup_rx_desc(sc, &rx_ring->desc[i],
rx_data->map->dm_segs[0].ds_addr, MCLBYTES, i);
}
fail: if (error != 0)
rtwn_free_rx_list(sc);
return (error);
}
