/*
* Setup pio structures needed for a particular hub.
*/
static void
hub_pio_init(devfs_handle_t hubv)
{
xwidgetnum_t widget;
hubinfo_t hubinfo;
nasid_t nasid;
int bigwin;
hub_piomap_t hub_piomap;
hubinfo_get(hubv, &hubinfo);
nasid = hubinfo->h_nasid;
/* Initialize small window piomaps for this hub */
for (widget=0; widget <= HUB_WIDGET_ID_MAX; widget++) {
hub_piomap = hubinfo_swin_piomap_get(hubinfo, (int)widget);
hub_piomap->hpio_xtalk_info.xp_target = widget;
hub_piomap->hpio_xtalk_info.xp_xtalk_addr = 0;
hub_piomap->hpio_xtalk_info.xp_mapsz = SWIN_SIZE;
hub_piomap->hpio_xtalk_info.xp_kvaddr = (caddr_t)NODE_SWIN_BASE(nasid, widget);
hub_piomap->hpio_hub = hubv;
hub_piomap->hpio_flags = HUB_PIOMAP_IS_VALID;
}
/* Initialize big window piomaps for this hub */
for (bigwin=0; bigwin < HUB_NUM_BIG_WINDOW; bigwin++) {
hub_piomap = hubinfo_bwin_piomap_get(hubinfo, bigwin);
hub_piomap->hpio_xtalk_info.xp_mapsz = BWIN_SIZE;
hub_piomap->hpio_hub = hubv;
hub_piomap->hpio_holdcnt = 0;
hub_piomap->hpio_flags = HUB_PIOMAP_IS_BIGWINDOW;
IIO_ITTE_DISABLE(nasid, bigwin);
}
#ifdef BRINGUP
hub_set_piomode(nasid, HUB_PIO_CONVEYOR);
#else
/* Set all the xwidgets in fire-and-forget mode
* by default
*/
hub_set_piomode(nasid, HUB_PIO_FIRE_N_FORGET);
#endif /* BRINGUP */
sv_init(&hubinfo->h_bwwait, SV_FIFO, "bigwin");
spinlock_init(&hubinfo->h_bwlock, "bigwin");
}
/*
* hub_pio_init - PIO-related hub initialization
*
* @hub: hubinfo structure for our hub
*/
void hub_pio_init(cnodeid_t cnode)
{
nasid_t nasid = COMPACT_TO_NASID_NODEID(cnode);
unsigned i;
/* initialize big window piomaps for this hub */
bitmap_zero(hub_data(cnode)->h_bigwin_used, HUB_NUM_BIG_WINDOW);
for (i = 0; i < HUB_NUM_BIG_WINDOW; i++)
IIO_ITTE_DISABLE(nasid, i);
hub_set_piomode(nasid);
}
