Date: Sun, 30 Jan 2011 02:17:48 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r218082 - stable/8/sys/powerpc/powermac Message-ID: <201101300217.p0U2Hmam053244@svn.freebsd.org>
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Author: nwhitehorn Date: Sun Jan 30 02:17:47 2011 New Revision: 218082 URL: http://svn.freebsd.org/changeset/base/218082 Log: MFC r217756: Disable ATAPI DMA unconditionally on Apple Kauai ATA controllers, like it is on the MacIO ones. It appears to be unreliable on all DBDMA-based controllers for unknown reasons, which should be figured out eventually. Modified: stable/8/sys/powerpc/powermac/ata_kauai.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) Modified: stable/8/sys/powerpc/powermac/ata_kauai.c ============================================================================== --- stable/8/sys/powerpc/powermac/ata_kauai.c Sat Jan 29 23:26:28 2011 (r218081) +++ stable/8/sys/powerpc/powermac/ata_kauai.c Sun Jan 30 02:17:47 2011 (r218082) @@ -244,8 +244,11 @@ ata_kauai_probe(device_t dev) ch->r_io[ATA_CONTROL].offset = ATA_KAUAI_ALTOFFSET; ata_default_registers(dev); - ch->unit = 0; - ch->flags |= ATA_USE_16BIT; + ch->unit = 0; + ch->flags |= ATA_USE_16BIT; + + /* XXX: ATAPI DMA is unreliable. We should find out why. */ + ch->flags |= ATA_NO_ATAPI_DMA; ata_generic_hw(dev); return (ata_probe(dev));
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