Date: Fri, 20 May 2016 12:38:48 +0000 (UTC) From: Andrew Turner <andrew@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r300299 - head/sys/arm64/arm64 Message-ID: <201605201238.u4KCcmC8094785@repo.freebsd.org>
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Author: andrew Date: Fri May 20 12:38:48 2016 New Revision: 300299 URL: https://svnweb.freebsd.org/changeset/base/300299 Log: Filter out BUS_DMASYNC_POSTWRITE sync operations, there is nothing for us to do on these. Reported by: wma Obtained from: ABT Systems Ltd Sponsored by: The FreeBSD Foundation Modified: head/sys/arm64/arm64/busdma_bounce.c Modified: head/sys/arm64/arm64/busdma_bounce.c ============================================================================== --- head/sys/arm64/arm64/busdma_bounce.c Fri May 20 12:17:40 2016 (r300298) +++ head/sys/arm64/arm64/busdma_bounce.c Fri May 20 12:38:48 2016 (r300299) @@ -955,6 +955,9 @@ bounce_bus_dmamap_sync(bus_dma_tag_t dma struct sync_list *sl, *end; vm_offset_t datavaddr, tempvaddr; + if (op == BUS_DMASYNC_POSTWRITE) + return; + if ((op & BUS_DMASYNC_POSTREAD) != 0) { /* * Wait for any DMA operations to complete before the bcopy.
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