Use bus_dmatag_subregion to get a 32-bit tag

This commit is contained in:
jmcneill 2019-06-22 19:35:40 +00:00
parent 088c49a92b
commit 0514b24577

View File

@ -1,4 +1,4 @@
/* $NetBSD: xhci_acpi.c,v 1.4 2019/06/19 13:40:23 jmcneill Exp $ */
/* $NetBSD: xhci_acpi.c,v 1.5 2019/06/22 19:35:40 jmcneill Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: xhci_acpi.c,v 1.4 2019/06/19 13:40:23 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: xhci_acpi.c,v 1.5 2019/06/22 19:35:40 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@ -130,10 +130,16 @@ xhci_acpi_attach(device_t parent, device_t self, void *aux)
hccparams = bus_space_read_4(sc->sc_iot, sc->sc_ioh, XHCI_HCCPARAMS);
if (XHCI_HCC_AC64(hccparams)) {
aprint_verbose_dev(self, "using 64-bit DMA\n");
sc->sc_bus.ub_dmatag = aa->aa_dmat64;
sc->sc_bus.ub_dmatag = aa->aa_dmat;
} else {
aprint_verbose_dev(self, "using 32-bit DMA\n");
sc->sc_bus.ub_dmatag = aa->aa_dmat;
error = bus_dmatag_subregion(aa->aa_dmat, 0, 0xffffffff,
&sc->sc_bus.ub_dmatag, BUS_DMA_WAITOK);
if (error != 0) {
aprint_error_dev(self, "couldn't create DMA tag: %d\n",
error);
return;
}
}
ih = acpi_intr_establish(self, (uint64_t)aa->aa_node->ad_handle,