Only enable BUS_DMA_64BIT if the controller supports it.

diff --git a/sys/dev/ic/ufshci.c b/sys/dev/ic/ufshci.c
index 22aaa99..f43a5d2 100644 (file)
--- a/sys/dev/ic/ufshci.c
+++ b/sys/dev/ic/ufshci.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: ufshci.c,v 1.27 2024/05/20 20:08:04 mglocker Exp $ */
+/*     $OpenBSD: ufshci.c,v 1.28 2024/05/21 16:09:00 mglocker Exp $ */
 
 /*
  * Copyright (c) 2022 Marcus Glocker <mglocker@openbsd.org>
@@ -306,7 +306,8 @@ ufshci_dmamem_alloc(struct ufshci_softc *sc, size_t size)
        udm->udm_size = size;
 
        if (bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
-           BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW | BUS_DMA_64BIT,
+           BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW |
+           (sc->sc_cap & UFSHCI_REG_CAP_64AS) ? BUS_DMA_64BIT : 0,
            &udm->udm_map) != 0)
                goto udmfree;
 
@@ -1339,7 +1340,8 @@ ufshci_ccb_alloc(struct ufshci_softc *sc, int nccbs)
 
                if (bus_dmamap_create(sc->sc_dmat, UFSHCI_UCD_PRDT_MAX_XFER,
                    UFSHCI_UCD_PRDT_MAX_SEGS, UFSHCI_UCD_PRDT_MAX_XFER, 0,
-                   BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW | BUS_DMA_64BIT,
+                   BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW |
+                   (sc->sc_cap & UFSHCI_REG_CAP_64AS) ? BUS_DMA_64BIT : 0,
                    &ccb->ccb_dmamap) != 0)
                        goto free_maps;