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Add some byteswap ops around DMA descriptors for big endian machines.

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Tested on macppc by matthew green.

XXX This driver completely lacks bus_dmamap_sync(9) ops.
This commit is contained in:
tsutsui 2004-05-23 11:37:25 +00:00
parent 58218d4f0f
commit a714bd16ef
1 changed files with 9 additions and 10 deletions
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19
sys/dev/pci/emuxki.c
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@ -1,4 +1,4 @@
/* $NetBSD: emuxki.c,v 1.33 2004/04/23 21:13:06 itojun Exp $ */
/* $NetBSD: emuxki.c,v 1.34 2004/05/23 11:37:25 tsutsui Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -56,7 +56,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: emuxki.c,v 1.33 2004/04/23 21:13:06 itojun Exp $");
__KERNEL_RCSID(0, "$NetBSD: emuxki.c,v 1.34 2004/05/23 11:37:25 tsutsui Exp $");
#include <sys/param.h>
#include <sys/device.h>
@ -739,7 +739,7 @@ emuxki_init(struct emuxki_softc *sc)
silentpage = DMAADDR(sc->silentpage) << 1;
ptb = KERNADDR(sc->ptb);
for (i = 0; i < EMU_MAXPTE; i++)
ptb[i] = silentpage | i;
ptb[i] = htole32(silentpage | i);
/* Write PTB address and set TCB to none */
emuxki_write(sc, 0, EMU_PTB, DMAADDR(sc->ptb));
@ -860,12 +860,12 @@ emuxki_pmem_alloc(struct emuxki_softc *sc, size_t size,
numblocks++;
for (i = 0; i < EMU_MAXPTE; i++)
if ((ptb[i] & EMU_CHAN_MAP_PTE_MASK) == silentpage) {
if ((le32toh(ptb[i]) & EMU_CHAN_MAP_PTE_MASK) == silentpage) {
/* We look for a free PTE */
s = splaudio();
for (j = 0; j < numblocks; j++)
if ((ptb[i + j] & EMU_CHAN_MAP_PTE_MASK)
!= silentpage)
if ((le32toh(ptb[i + j])
& EMU_CHAN_MAP_PTE_MASK) != silentpage)
break;
if (j == numblocks) {
if ((mem = emuxki_mem_new(sc, i,
@ -875,9 +875,8 @@ emuxki_pmem_alloc(struct emuxki_softc *sc, size_t size,
}
for (j = 0; j < numblocks; j++)
ptb[i + j] =
(((DMAADDR(mem->dmamem) +
j * EMU_PTESIZE)) << 1)
| (i + j);
htole32((((DMAADDR(mem->dmamem) +
j * EMU_PTESIZE)) << 1) | (i + j));
LIST_INSERT_HEAD(&(sc->mem), mem, next);
splx(s);
return (KERNADDR(mem->dmamem));
@ -2050,7 +2049,7 @@ emuxki_freem(void *addr, void *ptr, struct malloc_type *type)
numblocks++;
for (i = 0; i < numblocks; i++)
ptb[mem->ptbidx + i] =
silentpage | (mem->ptbidx + i);
htole32(silentpage | (mem->ptbidx + i));
}
LIST_REMOVE(mem, next);
splx(s);