diff options
| author | Henric Jungheim <henric@cvs.openbsd.org> | 2003-03-06 08:26:09 +0000 |
|---|---|---|
| committer | Henric Jungheim <henric@cvs.openbsd.org> | 2003-03-06 08:26:09 +0000 |
| commit | efca87016057d41201643e65d1f1c5d44716db0b (patch) | |
| tree | 0a757cfc249bf077773a2182e04fd490183c3e6c /sys/arch/sparc64/dev/iommureg.h | |
| parent | 6216a22d89b680747bfb42b651aed1076b9dbf92 (diff) | |
The existing IOMMU code had a rounding problem that was most noticeable
on faster systems under heavy network load. This replaces some of the
unreadable iommu functions with something a little less dense and a lot
less crash prone.
The bus_dma function pointer/cookie handling was broken. Change them
to work like the stacked bus_space drivers (where "work" is the key
word).
Tested my many (thanks).
ok jason@ deraadt@
Diffstat (limited to 'sys/arch/sparc64/dev/iommureg.h')
| -rw-r--r-- | sys/arch/sparc64/dev/iommureg.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/arch/sparc64/dev/iommureg.h b/sys/arch/sparc64/dev/iommureg.h index a03d49ab378..66d1df1fa4a 100644 --- a/sys/arch/sparc64/dev/iommureg.h +++ b/sys/arch/sparc64/dev/iommureg.h @@ -1,4 +1,4 @@ -/* $OpenBSD: iommureg.h,v 1.5 2003/02/17 01:29:20 henric Exp $ */ +/* $OpenBSD: iommureg.h,v 1.6 2003/03/06 08:26:08 henric Exp $ */ /* $NetBSD: iommureg.h,v 1.6 2001/07/20 00:07:13 eeh Exp $ */ /* @@ -97,9 +97,11 @@ struct iommu_strbuf { #define IOTTE_8K 0x0000000000000000LL #define IOTTE_STREAM 0x1000000000000000LL /* Is page streamable? */ #define IOTTE_LOCAL 0x0800000000000000LL /* Accesses to same bus segment? */ -#define IOTTE_PAMASK 0x000001ffffffe000LL /* Let's assume this is correct */ +#define IOTTE_PAMASK 0x000007ffffffe000LL /* Let's assume this is correct (bits 42..12) */ #define IOTTE_C 0x0000000000000010LL /* Accesses to cacheable space */ #define IOTTE_W 0x0000000000000002LL /* Writeable */ +#define IOTTE_SOFTWARE 0x0000000000001f80LL /* For software use (bits 12..7) */ + /* * On sun4u each bus controller has a separate IOMMU. The IOMMU has |