diff options
| author | Alexandre Ratchov <ratchov@cvs.openbsd.org> | 2009-05-18 20:10:13 +0000 |
|---|---|---|
| committer | Alexandre Ratchov <ratchov@cvs.openbsd.org> | 2009-05-18 20:10:13 +0000 |
| commit | cf3b3ac3f586a01740892c6f2450a388e962b325 (patch) | |
| tree | 0befed65b83b52cfb5fefc6f03435f67fd67fc3b /sys/dev/pci | |
| parent | c96827da73fed6da8721f0c27eafdb8e6ca76da5 (diff) | |
the block size must be multiple of the pci burst size (overwise
dma pointers can overrun)
Diffstat (limited to 'sys/dev/pci')
| -rw-r--r-- | sys/dev/pci/envy.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/sys/dev/pci/envy.c b/sys/dev/pci/envy.c index 42d333b7246..88a9ed8a6b9 100644 --- a/sys/dev/pci/envy.c +++ b/sys/dev/pci/envy.c @@ -1,4 +1,4 @@ -/* $OpenBSD: envy.c,v 1.27 2009/05/08 17:52:18 ratchov Exp $ */ +/* $OpenBSD: envy.c,v 1.28 2009/05/18 20:10:12 ratchov Exp $ */ /* * Copyright (c) 2007 Alexandre Ratchov <alex@caoua.org> * @@ -1214,18 +1214,14 @@ envy_round_blocksize(void *self, int blksz) * until it's fixed, roll our own rounding */ - pmult = (sc->isht ? sc->card->noch / 2 : ENVY_PCHANS / 2); + pmult = (sc->isht ? sc->card->noch : ENVY_PCHANS); if (pmult == 0) pmult = 1; - rmult = (sc->isht ? sc->card->nich / 2 : ENVY_RCHANS / 2); + rmult = (sc->isht ? sc->card->nich : ENVY_RCHANS); if (rmult == 0) rmult = 1; mul = pmult * rmult; - if ((mul & 1) != 0) - mul <<= 1; - if ((mul & 3) != 0) - mul <<= 1; - if ((mul & 7) != 0) + while ((mul & 0x1f) != 0) mul <<= 1; blksz -= blksz % mul; if (blksz == 0) @@ -1247,7 +1243,7 @@ envy_trigger_output(void *self, void *start, void *end, int blksz, size_t bufsz; int st; - bufsz = end - start; + bufsz = (char *)end - (char *)start; #ifdef ENVY_DEBUG if (blksz % (sc->isht ? sc->card->noch * 4 : ENVY_PFRAME_SIZE) != 0) { printf("%s: %d: bad output blksz\n", DEVNAME(sc), blksz); @@ -1283,7 +1279,7 @@ envy_trigger_input(void *self, void *start, void *end, int blksz, size_t bufsz; int st; - bufsz = end - start; + bufsz = (char *)end - (char *)start; #ifdef ENVY_DEBUG if (blksz % (sc->isht ? sc->card->nich * 4 : ENVY_RFRAME_SIZE) != 0) { printf("%s: %d: bad input blksz\n", DEVNAME(sc), blksz); |