diff options
| author | Michael Shalayeff <mickey@cvs.openbsd.org> | 2003-06-12 17:50:28 +0000 |
|---|---|---|
| committer | Michael Shalayeff <mickey@cvs.openbsd.org> | 2003-06-12 17:50:28 +0000 |
| commit | d216b04c893daddcf3ebe1792cdb4ea95530aa68 (patch) | |
| tree | d3789b7841f3b4980721be4f3ea0db1bac917c15 /sys/arch | |
| parent | c7cb8c1569f0500a7f63cd149e27bff4bbb971a6 (diff) | |
cannot ever use purge() since dmaed memory is not necessarily aligned always
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/hppa/hppa/mainbus.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/sys/arch/hppa/hppa/mainbus.c b/sys/arch/hppa/hppa/mainbus.c index ab3556fc6a9..425a6fbc59b 100644 --- a/sys/arch/hppa/hppa/mainbus.c +++ b/sys/arch/hppa/hppa/mainbus.c @@ -1,4 +1,4 @@ -/* $OpenBSD: mainbus.c,v 1.44 2003/04/07 17:01:08 mickey Exp $ */ +/* $OpenBSD: mainbus.c,v 1.45 2003/06/12 17:50:27 mickey Exp $ */ /* * Copyright (c) 1998-2003 Michael Shalayeff @@ -707,10 +707,11 @@ void mbus_dmamap_sync(void *v, bus_dmamap_t map, bus_addr_t offset, bus_size_t len, int ops) { - if (ops & (BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE)) - fdcache(HPPA_SID_KERNEL, map->_dm_va + offset, len); - else - pdcache(HPPA_SID_KERNEL, map->_dm_va + offset, len); + /* + * cannot use purge since the data for dma is not + * guarantied to be aligned in any way + */ + fdcache(HPPA_SID_KERNEL, map->_dm_va + offset, len); /* for either operation sync the shit away */ __asm __volatile ("sync\n\tsyncdma\n\tsync\n\t" |