From db5a9adcaf0d18da4792a97d9fce675fb26691e5 Mon Sep 17 00:00:00 2001 From: Xin LI Date: Tue, 14 Oct 2008 19:02:47 +0000 Subject: MFC r183660: Limit DMA memory to lower addressable 4GB, without this patch, we can reliably provoke data corruption on systems equipped with a plenty of memory during high load. Approved by: re (kib) --- sys/dev/twa/tw_osl_freebsd.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'sys/dev') diff --git a/sys/dev/twa/tw_osl_freebsd.c b/sys/dev/twa/tw_osl_freebsd.c index 4b098ae99d15..68136fef5438 100644 --- a/sys/dev/twa/tw_osl_freebsd.c +++ b/sys/dev/twa/tw_osl_freebsd.c @@ -492,7 +492,7 @@ tw_osli_alloc_mem(struct twa_softc *sc) if (bus_dma_tag_create(NULL, /* parent */ sc->alignment, /* alignment */ 0, /* boundary */ - BUS_SPACE_MAXADDR, /* lowaddr */ + BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ TW_CL_MAX_IO_SIZE, /* maxsize */ @@ -515,7 +515,7 @@ tw_osli_alloc_mem(struct twa_softc *sc) if (bus_dma_tag_create(sc->parent_tag, /* parent */ sc->alignment, /* alignment */ 0, /* boundary */ - BUS_SPACE_MAXADDR, /* lowaddr */ + BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ dma_mem_size, /* maxsize */ @@ -562,7 +562,7 @@ tw_osli_alloc_mem(struct twa_softc *sc) if (bus_dma_tag_create(sc->parent_tag, /* parent */ sc->alignment, /* alignment */ 0, /* boundary */ - BUS_SPACE_MAXADDR, /* lowaddr */ + BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ TW_CL_MAX_IO_SIZE, /* maxsize */ @@ -588,7 +588,7 @@ tw_osli_alloc_mem(struct twa_softc *sc) if (bus_dma_tag_create(sc->parent_tag, /* parent */ sc->alignment, /* alignment */ 0, /* boundary */ - BUS_SPACE_MAXADDR, /* lowaddr */ + BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ TW_CL_MAX_IO_SIZE, /* maxsize */ -- cgit v1.3