git: 38cbdae33b7c - main - dwc: Rewrite barrier part

The branch main has been updated by manu:

URL: https://cgit.FreeBSD.org/src/commit/?id=38cbdae33b7c3f772845c06f52b86c0ddeab6a17

commit 38cbdae33b7c3f772845c06f52b86c0ddeab6a17
Author:     Emmanuel Vadot <manu@FreeBSD.org>
AuthorDate: 2023-10-06 16:04:49 +0000
Commit:     Emmanuel Vadot <manu@FreeBSD.org>
CommitDate: 2023-10-06 17:05:45 +0000

    dwc: Rewrite barrier part
    
    We only need a barrier after writing the OWN bit so everything is
    coherent for the DMA engine.
---
 sys/dev/dwc/dwc1000_dma.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/sys/dev/dwc/dwc1000_dma.c b/sys/dev/dwc/dwc1000_dma.c
index f6baa0bd3e45..4f8ae088305a 100644
--- a/sys/dev/dwc/dwc1000_dma.c
+++ b/sys/dev/dwc/dwc1000_dma.c
@@ -216,7 +216,6 @@ txdesc_setup(struct dwc_softc *sc, int idx, bus_addr_t paddr,
 	sc->txdesc_ring[idx].addr1 = (uint32_t)(paddr);
 	sc->txdesc_ring[idx].desc0 = desc0;
 	sc->txdesc_ring[idx].desc1 = desc1;
-	wmb();
 	sc->txdesc_ring[idx].desc0 |= TDESC0_OWN;
 	wmb();
 }
@@ -237,7 +236,6 @@ rxdesc_setup(struct dwc_softc *sc, int idx, bus_addr_t paddr)
 		sc->rxdesc_ring[idx].desc1 = ERDESC1_RCH |
 		    MIN(MCLBYTES, ERDESC1_RBS1_MASK);
 
-	wmb();
 	sc->rxdesc_ring[idx].desc0 = RDESC0_OWN;
 	wmb();
 	return (nidx);
@@ -524,7 +522,6 @@ dma1000_rxfinish_locked(struct dwc_softc *sc)
 
 		m = dwc_rxfinish_one(sc, desc, sc->rxbuf_map + idx);
 		if (m == NULL) {
-			wmb();
 			desc->desc0 = RDESC0_OWN;
 			wmb();
 		} else {