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if_dwc: Use explicit cache operations

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This commit is contained in:
Sebastian Huber
2015-03-27 14:16:40 +01:00
parent d5ad68ab54
commit 6a4b5a45e1
1 changed files with 51 additions and 0 deletions
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51
freebsd/sys/dev/dwc/if_dwc.c
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@@ -116,7 +116,9 @@ __FBSDID("$FreeBSD$");
#define DDESC_RDES1_CHAINED (1 << 14)
struct dwc_bufmap {
#ifndef __rtems__
bus_dmamap_t map;
#endif /* __rtems__ */
struct mbuf *mbuf;
};
@@ -179,8 +181,10 @@ struct dwc_softc {
bus_dma_tag_t rxdesc_tag;
bus_dmamap_t rxdesc_map;
struct dwc_hwdesc *rxdesc_ring;
#ifndef __rtems__
bus_addr_t rxdesc_ring_paddr;
bus_dma_tag_t rxbuf_tag;
#endif /* __rtems__ */
struct dwc_bufmap rxbuf_map[RX_DESC_COUNT];
uint32_t rx_idx;
@@ -188,8 +192,10 @@ struct dwc_softc {
bus_dma_tag_t txdesc_tag;
bus_dmamap_t txdesc_map;
struct dwc_hwdesc *txdesc_ring;
#ifndef __rtems__
bus_addr_t txdesc_ring_paddr;
bus_dma_tag_t txbuf_tag;
#endif /* __rtems__ */
struct dwc_bufmap txbuf_map[RX_DESC_COUNT];
uint32_t tx_idx_head;
uint32_t tx_idx_tail;
@@ -221,6 +227,7 @@ next_txidx(struct dwc_softc *sc, uint32_t curidx)
return ((curidx + 1) % TX_DESC_COUNT);
}
#ifndef __rtems__
static void
dwc_get1paddr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
{
@@ -229,6 +236,7 @@ dwc_get1paddr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
return;
*(bus_addr_t *)arg = segs[0].ds_addr;
}
#endif /* __rtems__ */
inline static uint32_t
dwc_setup_txdesc(struct dwc_softc *sc, int idx, bus_addr_t paddr,
@@ -266,13 +274,16 @@ static int
dwc_setup_txbuf(struct dwc_softc *sc, int idx, struct mbuf **mp)
{
struct bus_dma_segment seg;
#ifndef __rtems__
int error, nsegs;
#endif /* __rtems__ */
struct mbuf * m;
if ((m = m_defrag(*mp, M_NOWAIT)) == NULL)
return (ENOMEM);
*mp = m;
#ifndef __rtems__
error = bus_dmamap_load_mbuf_sg(sc->txbuf_tag, sc->txbuf_map[idx].map,
m, &seg, &nsegs, 0);
if (error != 0) {
@@ -283,6 +294,11 @@ dwc_setup_txbuf(struct dwc_softc *sc, int idx, struct mbuf **mp)
bus_dmamap_sync(sc->txbuf_tag, sc->txbuf_map[idx].map,
BUS_DMASYNC_PREWRITE);
#else /* __rtems__ */
rtems_cache_flush_multiple_data_lines(m->m_data, m->m_len);
seg.ds_addr = mtod(m, bus_addr_t);
seg.ds_len = m->m_len;
#endif /* __rtems__ */
sc->txbuf_map[idx].mbuf = m;
@@ -541,8 +557,12 @@ dwc_setup_rxdesc(struct dwc_softc *sc, int idx, bus_addr_t paddr)
sc->rxdesc_ring[idx].addr = (uint32_t)paddr;
nidx = next_rxidx(sc, idx);
#ifndef __rtems__
sc->rxdesc_ring[idx].addr_next = sc->rxdesc_ring_paddr + \
(nidx * sizeof(struct dwc_hwdesc));
#else /* __rtems__ */
sc->rxdesc_ring[idx].addr_next = (uint32_t)&sc->rxdesc_ring[nidx];
#endif /* __rtems__ */
sc->rxdesc_ring[idx].tdes1 = DDESC_RDES1_CHAINED | MCLBYTES;
wmb();
@@ -556,10 +576,13 @@ static int
dwc_setup_rxbuf(struct dwc_softc *sc, int idx, struct mbuf *m)
{
struct bus_dma_segment seg;
#ifndef __rtems__
int error, nsegs;
#endif /* __rtems__ */
m_adj(m, ETHER_ALIGN);
#ifndef __rtems__
error = bus_dmamap_load_mbuf_sg(sc->rxbuf_tag, sc->rxbuf_map[idx].map,
m, &seg, &nsegs, 0);
if (error != 0) {
@@ -570,6 +593,10 @@ dwc_setup_rxbuf(struct dwc_softc *sc, int idx, struct mbuf *m)
bus_dmamap_sync(sc->rxbuf_tag, sc->rxbuf_map[idx].map,
BUS_DMASYNC_PREREAD);
#else /* __rtems__ */
rtems_cache_invalidate_multiple_data_lines(m->m_data, m->m_len);
seg.ds_addr = mtod(m, bus_addr_t);
#endif /* __rtems__ */
sc->rxbuf_map[idx].mbuf = m;
dwc_setup_rxdesc(sc, idx, seg.ds_addr);
@@ -788,9 +815,11 @@ dwc_txfinish_locked(struct dwc_softc *sc)
if ((desc->tdes0 & DDESC_TDES0_OWN) != 0)
break;
bmap = &sc->txbuf_map[sc->tx_idx_tail];
#ifndef __rtems__
bus_dmamap_sync(sc->txbuf_tag, bmap->map,
BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(sc->txbuf_tag, bmap->map);
#endif /* __rtems__ */
m_freem(bmap->mbuf);
bmap->mbuf = NULL;
dwc_setup_txdesc(sc, sc->tx_idx_tail, 0, 0);
@@ -823,9 +852,11 @@ dwc_rxfinish_locked(struct dwc_softc *sc)
if ((rdes0 & DDESC_RDES0_OWN) != 0)
break;
#ifndef __rtems__
bus_dmamap_sync(sc->rxbuf_tag, sc->rxbuf_map[idx].map,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(sc->rxbuf_tag, sc->rxbuf_map[idx].map);
#endif /* __rtems__ */
len = (rdes0 >> DDESC_RDES0_FL_SHIFT) & DDESC_RDES0_FL_MASK;
if (len != 0) {
@@ -940,6 +971,7 @@ setup_dma(struct dwc_softc *sc)
goto out;
}
#ifndef __rtems__
error = bus_dmamap_load(sc->txdesc_tag, sc->txdesc_map,
sc->txdesc_ring, TX_DESC_SIZE, dwc_get1paddr,
&sc->txdesc_ring_paddr, 0);
@@ -948,15 +980,22 @@ setup_dma(struct dwc_softc *sc)
"could not load TX descriptor ring map.\n");
goto out;
}
#endif /* __rtems__ */
for (idx = 0; idx < TX_DESC_COUNT; idx++) {
sc->txdesc_ring[idx].tdes0 = DDESC_TDES0_TXCHAIN;
sc->txdesc_ring[idx].tdes1 = 0;
nidx = next_txidx(sc, idx);
#ifndef __rtems__
sc->txdesc_ring[idx].addr_next = sc->txdesc_ring_paddr + \
(nidx * sizeof(struct dwc_hwdesc));
#else /* __rtems__ */
sc->txdesc_ring[idx].addr_next =
(uint32_t)&sc->txdesc_ring[nidx];
#endif /* __rtems__ */
}
#ifndef __rtems__
error = bus_dma_tag_create(
bus_get_dma_tag(sc->dev), /* Parent tag. */
1, 0, /* alignment, boundary */
@@ -973,8 +1012,10 @@ setup_dma(struct dwc_softc *sc)
"could not create TX ring DMA tag.\n");
goto out;
}
#endif /* __rtems__ */
for (idx = 0; idx < TX_DESC_COUNT; idx++) {
#ifndef __rtems__
error = bus_dmamap_create(sc->txbuf_tag, BUS_DMA_COHERENT,
&sc->txbuf_map[idx].map);
if (error != 0) {
@@ -982,6 +1023,7 @@ setup_dma(struct dwc_softc *sc)
"could not create TX buffer DMA map.\n");
goto out;
}
#endif /* __rtems__ */
dwc_setup_txdesc(sc, idx, 0, 0);
}
@@ -1014,6 +1056,7 @@ setup_dma(struct dwc_softc *sc)
goto out;
}
#ifndef __rtems__
error = bus_dmamap_load(sc->rxdesc_tag, sc->rxdesc_map,
sc->rxdesc_ring, RX_DESC_SIZE, dwc_get1paddr,
&sc->rxdesc_ring_paddr, 0);
@@ -1039,8 +1082,10 @@ setup_dma(struct dwc_softc *sc)
"could not create RX buf DMA tag.\n");
goto out;
}
#endif /* __rtems__ */
for (idx = 0; idx < RX_DESC_COUNT; idx++) {
#ifndef __rtems__
error = bus_dmamap_create(sc->rxbuf_tag, BUS_DMA_COHERENT,
&sc->rxbuf_map[idx].map);
if (error != 0) {
@@ -1048,6 +1093,7 @@ setup_dma(struct dwc_softc *sc)
"could not create RX buffer DMA map.\n");
goto out;
}
#endif /* __rtems__ */
if ((m = dwc_alloc_mbufcl(sc)) == NULL) {
device_printf(sc->dev, "Could not alloc mbuf\n");
error = ENOMEM;
@@ -1191,8 +1237,13 @@ dwc_attach(device_t dev)
return (ENXIO);
/* Setup addresses */
#ifndef __rtems__
WRITE4(sc, RX_DESCR_LIST_ADDR, sc->rxdesc_ring_paddr);
WRITE4(sc, TX_DESCR_LIST_ADDR, sc->txdesc_ring_paddr);
#else /* __rtems__ */
WRITE4(sc, RX_DESCR_LIST_ADDR, (uint32_t)&sc->rxdesc_ring[0]);
WRITE4(sc, TX_DESCR_LIST_ADDR, (uint32_t)&sc->txdesc_ring[0]);
#endif /* __rtems__ */
mtx_init(&sc->mtx, device_get_nameunit(sc->dev),
MTX_NETWORK_LOCK, MTX_DEF);