diff options
| author | Alexandre Ratchov <ratchov@cvs.openbsd.org> | 2009-03-30 17:43:16 +0000 |
|---|---|---|
| committer | Alexandre Ratchov <ratchov@cvs.openbsd.org> | 2009-03-30 17:43:16 +0000 |
| commit | 674ee8a796bc56d9215201e9519b8ebb8a1687b8 (patch) | |
| tree | e5b55f4c5802c96752bd0c69c1dda7ae684c40de /sys/arch | |
| parent | 5422563144e0c36d2d8a27c337f96eca136e4c21 (diff) | |
don't use pmapflags unitialized. Fixes envy(4) consuming 80% CPU
when recording
ok oga, deraadt
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/i386/i386/bus_dma.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/sys/arch/i386/i386/bus_dma.c b/sys/arch/i386/i386/bus_dma.c index 890bfc0aee6..970830d3e7a 100644 --- a/sys/arch/i386/i386/bus_dma.c +++ b/sys/arch/i386/i386/bus_dma.c @@ -1,4 +1,4 @@ -/* $OpenBSD: bus_dma.c,v 1.5 2009/03/10 15:03:17 oga Exp $ */ +/* $OpenBSD: bus_dma.c,v 1.6 2009/03/30 17:43:15 ratchov Exp $ */ /*- * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. * All rights reserved. @@ -369,6 +369,7 @@ _bus_dmamem_map(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs, bus_addr_t addr; int curseg, pmapflags; + pmapflags = VM_PROT_READ | VM_PROT_WRITE | PMAP_WIRED; if (flags & BUS_DMA_NOCACHE) pmapflags |= PMAP_NOCACHE; @@ -386,9 +387,7 @@ _bus_dmamem_map(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs, if (size == 0) panic("_bus_dmamem_map: size botch"); pmap_enter(pmap_kernel(), va, addr, - VM_PROT_READ | VM_PROT_WRITE, - VM_PROT_READ | VM_PROT_WRITE | PMAP_WIRED | - pmapflags); + VM_PROT_READ | VM_PROT_WRITE, pmapflags); } } pmap_update(pmap_kernel()); |