[src/trunk]: src/sys/dev/pci Use bus_space_write_8() if available.

[msaitoh <msaitoh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/cb22e848daeb
branches:  trunk
changeset: 368394:cb22e848daeb
user:      msaitoh <msaitoh%NetBSD.org@localhost>
date:      Sat Jul 09 11:41:56 2022 +0000

description:
Use bus_space_write_8() if available.

diffstat:

 sys/dev/pci/mfii.c |  14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)

diffs (42 lines):

diff -r 9e4a64fa7663 -r cb22e848daeb sys/dev/pci/mfii.c
--- a/sys/dev/pci/mfii.c        Sat Jul 09 11:41:18 2022 +0000
+++ b/sys/dev/pci/mfii.c        Sat Jul 09 11:41:56 2022 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mfii.c,v 1.21 2022/07/09 11:41:18 msaitoh Exp $ */
+/* $NetBSD: mfii.c,v 1.22 2022/07/09 11:41:56 msaitoh Exp $ */
 /* $OpenBSD: mfii.c,v 1.58 2018/08/14 05:22:21 jmatthew Exp $ */
 
 /*
@@ -19,7 +19,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: mfii.c,v 1.21 2022/07/09 11:41:18 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: mfii.c,v 1.22 2022/07/09 11:41:56 msaitoh Exp $");
 
 #include "bio.h"
 
@@ -1862,18 +1862,18 @@
 static void
 mfii_start(struct mfii_softc *sc, struct mfii_ccb *ccb)
 {
-#if defined(__LP64__) && 0
-       u_long *r = (u_long *)&ccb->ccb_req;
-#else
        uint32_t *r = (uint32_t *)&ccb->ccb_req;
+#if defined(__LP64__)
+       uint64_t buf;
 #endif
 
        bus_dmamap_sync(sc->sc_dmat, MFII_DMA_MAP(sc->sc_requests),
            ccb->ccb_request_offset, MFII_REQUEST_SIZE,
            BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
 
-#if defined(__LP64__) && 0
-       bus_space_write_8(sc->sc_iot, sc->sc_ioh, MFI_IQPL, *r);
+#if defined(__LP64__)
+       buf = ((uint64_t)r[1] << 32) | r[0];
+       bus_space_write_8(sc->sc_iot, sc->sc_ioh, MFI_IQPL, buf);
 #else
        mutex_enter(&sc->sc_post_mtx);
        bus_space_write_4(sc->sc_iot, sc->sc_ioh, MFI_IQPL, r[0]);