Author: mmel Date: Sat Nov 28 14:30:42 2015 New Revision: 291427 URL: https://svnweb.freebsd.org/changeset/base/291427
Log: AHCI: Use bus_dmamap_sync(9) when accessing DMA buffers. Reviewed by: mav Approved by: kib (mentor) Differential Revision: https://reviews.freebsd.org/D4240 Modified: head/sys/dev/ahci/ahci.c Modified: head/sys/dev/ahci/ahci.c ============================================================================== --- head/sys/dev/ahci/ahci.c Sat Nov 28 12:12:28 2015 (r291426) +++ head/sys/dev/ahci/ahci.c Sat Nov 28 14:30:42 2015 (r291427) @@ -1606,10 +1606,15 @@ ahci_execute_transaction(struct ahci_slo if ((ch->quirks & AHCI_Q_NOBSYRES) == 0 && (ch->quirks & AHCI_Q_ATI_PMP_BUG) == 0 && softreset == 2 && et == AHCI_ERR_NONE) { - while ((val = fis[2]) & ATA_S_BUSY) { - DELAY(10); - if (count++ >= timeout) + for ( ; count < timeout; count++) { + bus_dmamap_sync(ch->dma.rfis_tag, + ch->dma.rfis_map, BUS_DMASYNC_POSTREAD); + val = fis[2]; + bus_dmamap_sync(ch->dma.rfis_tag, + ch->dma.rfis_map, BUS_DMASYNC_PREREAD); + if ((val & ATA_S_BUSY) == 0) break; + DELAY(10); } } _______________________________________________ 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"
