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Add bus_dmamap_sync as dma regions are no longer uncached.

This commit is contained in:
hannken 2003-08-16 15:40:41 +00:00
parent 1aa623b237
commit af69915880
1 changed files with 64 additions and 7 deletions
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71
sys/arch/evbppc/explora/dev/le_elb.c
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@ -1,4 +1,4 @@
/* $NetBSD: le_elb.c,v 1.2 2003/07/15 01:37:37 lukem Exp $ */
/* $NetBSD: le_elb.c,v 1.3 2003/08/16 15:40:41 hannken Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: le_elb.c,v 1.2 2003/07/15 01:37:37 lukem Exp $");
__KERNEL_RCSID(0, "$NetBSD: le_elb.c,v 1.3 2003/08/16 15:40:41 hannken Exp $");
#include <sys/param.h>
#include <sys/conf.h>
@ -79,6 +79,9 @@ static u_int16_t le_rdcsr(struct lance_softc *, u_int16_t);
static void le_wrcsr(struct lance_softc *, u_int16_t, u_int16_t);
static void le_copytodesc(struct lance_softc *, void *, int, int);
static void le_copyfromdesc(struct lance_softc *, void *, int, int);
static void le_copytobuf(struct lance_softc *, void *, int, int);
static void le_copyfrombuf(struct lance_softc *, void *, int, int);
static void le_zerobuf(struct lance_softc *, int, int);
CFATTACH_DECL(le_elb, sizeof(struct le_elb_softc),
le_elb_probe, le_elb_attach, NULL, NULL);
@ -157,9 +160,9 @@ le_elb_attach(struct device *parent, struct device *self, void *aux)
sc->sc_copytodesc = le_copytodesc;
sc->sc_copyfromdesc = le_copyfromdesc;
sc->sc_copytobuf = lance_copytobuf_contig;
sc->sc_copyfrombuf = lance_copyfrombuf_contig;
sc->sc_zerobuf = lance_zerobuf_contig;
sc->sc_copytobuf = le_copytobuf;
sc->sc_copyfrombuf = le_copyfrombuf;
sc->sc_zerobuf = le_zerobuf;
sc->sc_rdcsr = le_rdcsr;
sc->sc_wrcsr = le_wrcsr;
@ -217,8 +220,10 @@ le_wrcsr(struct lance_softc *sc, u_int16_t reg, u_int16_t val)
static void
le_copytodesc(struct lance_softc *sc, void *from, int boff, int len)
{
struct le_elb_softc *msc = (struct le_elb_softc *)sc;
volatile u_int32_t *src = from;
volatile u_int32_t *dst = (u_int32_t *)((u_char *)sc->sc_mem+boff);
int todo = len;
/* XXX lance_setladrf should be modified to use u_int32_t instead.
* The init block contains u_int16_t values that require
@ -229,9 +234,12 @@ le_copytodesc(struct lance_softc *sc, void *from, int boff, int len)
src[4] = (src[4] >> 16) | (src[4] << 16);
}
len /= sizeof(u_int32_t);
while (len-- > 0)
todo /= sizeof(u_int32_t);
while (todo-- > 0)
*dst++ = bswap32(*src++);
bus_dmamap_sync(msc->sc_dmat, msc->sc_dmam, boff, len,
BUS_DMASYNC_PREWRITE);
}
/*
@ -240,10 +248,59 @@ le_copytodesc(struct lance_softc *sc, void *from, int boff, int len)
static void
le_copyfromdesc(struct lance_softc *sc, void *to, int boff, int len)
{
struct le_elb_softc *msc = (struct le_elb_softc *)sc;
volatile u_int32_t *src = (u_int32_t *)((u_char *)sc->sc_mem+boff);
volatile u_int32_t *dst = to;
bus_dmamap_sync(msc->sc_dmat, msc->sc_dmam, boff, len,
BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
len /= sizeof(u_int32_t);
while (len-- > 0)
*dst++ = bswap32(*src++);
}
/*
* Copy data to memory.
*/
static void
le_copytobuf(struct lance_softc *sc, void *from, int boff, int len)
{
struct le_elb_softc *msc = (struct le_elb_softc *)sc;
volatile caddr_t buf = (caddr_t)((u_char *)sc->sc_mem+boff);
memcpy(buf, from, len);
bus_dmamap_sync(msc->sc_dmat, msc->sc_dmam, boff, len,
BUS_DMASYNC_PREWRITE);
}
/*
* Copy data from memory.
*/
static void
le_copyfrombuf(struct lance_softc *sc, void *to, int boff, int len)
{
struct le_elb_softc *msc = (struct le_elb_softc *)sc;
volatile caddr_t buf = (caddr_t)((u_char *)sc->sc_mem+boff);
bus_dmamap_sync(msc->sc_dmat, msc->sc_dmam, boff, len,
BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
memcpy(to, buf, len);
}
/*
* Zero memory.
*/
static void
le_zerobuf(struct lance_softc *sc, int boff, int len)
{
struct le_elb_softc *msc = (struct le_elb_softc *)sc;
volatile caddr_t buf = (caddr_t)((u_char *)sc->sc_mem+boff);
memset(buf, 0, len);
bus_dmamap_sync(msc->sc_dmat, msc->sc_dmam, boff, len,
BUS_DMASYNC_PREWRITE);
}