Author: gonzo Date: Wed Dec 21 22:35:26 2016 New Revision: 310375 URL: https://svnweb.freebsd.org/changeset/base/310375
Log: [iwn] Several fixes for DMA part of iwn(4) - Perform DMS sync when accessing/initializing ICT table - Fix some DMA sync operations to use matching tags Reviewed by: avos MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D8804 Modified: head/sys/dev/iwn/if_iwn.c Modified: head/sys/dev/iwn/if_iwn.c ============================================================================== --- head/sys/dev/iwn/if_iwn.c Wed Dec 21 22:04:44 2016 (r310374) +++ head/sys/dev/iwn/if_iwn.c Wed Dec 21 22:35:26 2016 (r310375) @@ -2120,6 +2120,9 @@ iwn5000_ict_reset(struct iwn_softc *sc) memset(sc->ict, 0, IWN_ICT_SIZE); sc->ict_cur = 0; + bus_dmamap_sync(sc->ict_dma.tag, sc->ict_dma.map, + BUS_DMASYNC_PREWRITE); + /* Set physical address of ICT table (4KB aligned). */ DPRINTF(sc, IWN_DEBUG_RESET, "%s: enabling ICT\n", __func__); IWN_WRITE(sc, IWN_DRAM_INT_TBL, IWN_DRAM_INT_TBL_ENABLE | @@ -4100,6 +4103,8 @@ iwn_intr(void *arg) /* Read interrupts from ICT (fast) or from registers (slow). */ if (sc->sc_flags & IWN_FLAG_USE_ICT) { + bus_dmamap_sync(sc->ict_dma.tag, sc->ict_dma.map, + BUS_DMASYNC_POSTREAD); tmp = 0; while (sc->ict[sc->ict_cur] != 0) { tmp |= sc->ict[sc->ict_cur]; @@ -4635,7 +4640,7 @@ iwn_tx_data(struct iwn_softc *sc, struct } bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); - bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map, + bus_dmamap_sync(ring->cmd_dma.tag, ring->cmd_dma.map, BUS_DMASYNC_PREWRITE); bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, BUS_DMASYNC_PREWRITE); @@ -4828,7 +4833,7 @@ iwn_tx_data_raw(struct iwn_softc *sc, st } bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); - bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map, + bus_dmamap_sync(ring->cmd_dma.tag, ring->cmd_dma.map, BUS_DMASYNC_PREWRITE); bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, BUS_DMASYNC_PREWRITE); @@ -5161,7 +5166,7 @@ iwn_cmd(struct iwn_softc *sc, int code, bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); } else { - bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map, + bus_dmamap_sync(ring->cmd_dma.tag, ring->cmd_dma.map, BUS_DMASYNC_PREWRITE); } bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
