diff options
| author | Tobias Weingartner <weingart@cvs.openbsd.org> | 2006-06-08 03:18:09 +0000 |
|---|---|---|
| committer | Tobias Weingartner <weingart@cvs.openbsd.org> | 2006-06-08 03:18:09 +0000 |
| commit | a0570576d9ba1d523927c55e53a38ca792c6deac (patch) | |
| tree | 15f4a17ced3586deb8aa0c73d818f15d2d202a39 /sys/arch/amd64 | |
| parent | cfaf23508a25c2c6addff8930944454b3546bcc4 (diff) | |
Move ISA logic of allocation functions to better place.
Thanks for krw@ for testing isa floppies. brad@ ok,
jason@ ok.
Diffstat (limited to 'sys/arch/amd64')
| -rw-r--r-- | sys/arch/amd64/amd64/bus_dma.c | 9 | ||||
| -rw-r--r-- | sys/arch/amd64/isa/isa_machdep.c | 19 |
2 files changed, 14 insertions, 14 deletions
diff --git a/sys/arch/amd64/amd64/bus_dma.c b/sys/arch/amd64/amd64/bus_dma.c index 71ba402f231..4aeeed9eb7a 100644 --- a/sys/arch/amd64/amd64/bus_dma.c +++ b/sys/arch/amd64/amd64/bus_dma.c @@ -1,4 +1,4 @@ -/* $OpenBSD: bus_dma.c,v 1.5 2006/05/10 12:36:39 krw Exp $ */ +/* $OpenBSD: bus_dma.c,v 1.6 2006/06/08 03:18:08 weingart Exp $ */ /* $NetBSD: bus_dma.c,v 1.3 2003/05/07 21:33:58 fvdl Exp $ */ /*- @@ -669,11 +669,8 @@ _bus_dmamem_alloc_range(t, size, alignment, boundary, segs, nsegs, rsegs, /* * Allocate pages from the VM system. */ - if (high <= ISA_DMA_BOUNCE_THRESHOLD || (error = uvm_pglistalloc(size, - round_page(ISA_DMA_BOUNCE_THRESHOLD), high, alignment, boundary, - &mlist, nsegs, (flags & BUS_DMA_NOWAIT) == 0))) - error = uvm_pglistalloc(size, low, high, alignment, boundary, - &mlist, nsegs, (flags & BUS_DMA_NOWAIT) == 0); + error = uvm_pglistalloc(size, low, high, alignment, boundary, + &mlist, nsegs, (flags & BUS_DMA_NOWAIT) == 0); if (error) return (error); diff --git a/sys/arch/amd64/isa/isa_machdep.c b/sys/arch/amd64/isa/isa_machdep.c index c8366a83dcf..74efd9479c9 100644 --- a/sys/arch/amd64/isa/isa_machdep.c +++ b/sys/arch/amd64/isa/isa_machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: isa_machdep.c,v 1.8 2006/03/08 19:44:02 kettenis Exp $ */ +/* $OpenBSD: isa_machdep.c,v 1.9 2006/06/08 03:18:08 weingart Exp $ */ /* $NetBSD: isa_machdep.c,v 1.22 1997/06/12 23:57:32 thorpej Exp $ */ #define ISA_DMA_STATS @@ -770,15 +770,18 @@ _isa_bus_dmamem_alloc(t, size, alignment, boundary, segs, nsegs, rsegs, flags) int *rsegs; int flags; { - paddr_t high; + int error; - if (avail_end > ISA_DMA_BOUNCE_THRESHOLD) - high = trunc_page(ISA_DMA_BOUNCE_THRESHOLD); - else - high = trunc_page(avail_end); + /* Try in ISA addressable region first */ + error = _bus_dmamem_alloc_range(t, size, alignment, boundary, + segs, nsegs, rsegs, flags, 0, ISA_DMA_BOUNCE_THRESHOLD); + if (!error) + return (error); - return (_bus_dmamem_alloc_range(t, size, alignment, boundary, - segs, nsegs, rsegs, flags, 0, high)); + /* Otherwise try anywhere (we'll bounce later) */ + error = _bus_dmamem_alloc_range(t, size, alignment, boundary, + segs, nsegs, rsegs, flags, 0, trunc_page(avail_end)); + return (error); } /* |