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Conform bus_dmamem_{alloc,map} usage to bus_dma(9) specs.

This commit is contained in:
pk 2000-05-09 23:16:19 +00:00
parent 1bf775b965
commit 18a16edec1
1 changed files with 61 additions and 23 deletions
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84
sys/dev/sbus/isp_sbus.c
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@ -1,4 +1,4 @@
/* $NetBSD: isp_sbus.c,v 1.23 2000/02/19 15:13:07 mjacob Exp $ */
/* $NetBSD: isp_sbus.c,v 1.24 2000/05/09 23:16:19 pk Exp $ */
/*
* SBus specific probe and attach routines for Qlogic ISP SCSI adapters.
*
@ -86,6 +86,8 @@ struct isp_sbussoftc {
int sbus_pri;
struct ispmdvec sbus_mdvec;
bus_dmamap_t *sbus_dmamap;
bus_dmamap_t sbus_request_dmamap;
bus_dmamap_t sbus_result_dmamap;
int16_t sbus_poff[_NREG_BLKS];
};
@ -266,6 +268,7 @@ isp_sbus_mbxdma(isp)
struct ispsoftc *isp;
{
struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
bus_dma_tag_t dmatag = sbc->sbus_dmatag;
bus_dma_segment_t seg;
int rseg;
size_t n;
@ -292,39 +295,74 @@ isp_sbus_mbxdma(isp)
* Allocate and map the request queue.
*/
len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN);
if (bus_dmamem_alloc(sbc->sbus_dmatag, len, NBPG, 0,
&seg, 1, &rseg, BUS_DMA_NOWAIT)) {
free(sbc->sbus_dmamap, M_DEVBUF);
free(isp->isp_xflist, M_DEVBUF);
return (1);
/* Allocate DMA map */
if (bus_dmamap_create(dmatag, len, 1, len, NBPG, BUS_DMA_NOWAIT,
&sbc->sbus_request_dmamap) != 0) {
goto dmafail;
}
if (bus_dmamem_map(sbc->sbus_dmatag, &seg, rseg, len,
(caddr_t *)&isp->isp_rquest, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) {
free(sbc->sbus_dmamap, M_DEVBUF);
free(isp->isp_xflist, M_DEVBUF);
return (1);
/* Allocate DMA buffer */
if (bus_dmamem_alloc(dmatag, len, NBPG, 0,
&seg, 1, &rseg, BUS_DMA_NOWAIT)) {
goto dmafail;
}
/* Load the buffer */
if (bus_dmamap_load_raw(dmatag, sbc->sbus_request_dmamap,
&seg, rseg, len, BUS_DMA_NOWAIT) != 0) {
bus_dmamem_free(dmatag, &seg, rseg);
goto dmafail;
}
isp->isp_rquest_dma = sbc->sbus_request_dmamap->dm_segs[0].ds_addr;
/* Map DMA buffer in CPU addressable space */
if (bus_dmamem_map(dmatag, &seg, rseg, len,
(caddr_t *)&isp->isp_rquest,
BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) {
bus_dmamap_unload(dmatag, sbc->sbus_request_dmamap);
bus_dmamem_free(dmatag, &seg, rseg);
goto dmafail;
}
isp->isp_rquest_dma = seg.ds_addr;
/*
* Allocate and map the result queue.
*/
len = ISP_QUEUE_SIZE(RESULT_QUEUE_LEN);
if (bus_dmamem_alloc(sbc->sbus_dmatag, len, NBPG, 0,
&seg, 1, &rseg, BUS_DMA_NOWAIT)) {
free(sbc->sbus_dmamap, M_DEVBUF);
free(isp->isp_xflist, M_DEVBUF);
return (1);
/* Allocate DMA map */
if (bus_dmamap_create(dmatag, len, 1, len, NBPG, BUS_DMA_NOWAIT,
&sbc->sbus_result_dmamap) != 0) {
goto dmafail;
}
if (bus_dmamem_map(sbc->sbus_dmatag, &seg, rseg, len,
(caddr_t *)&isp->isp_result, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) {
free(sbc->sbus_dmamap, M_DEVBUF);
free(isp->isp_xflist, M_DEVBUF);
return (1);
/* Allocate DMA buffer */
if (bus_dmamem_alloc(dmatag, len, NBPG, 0,
&seg, 1, &rseg, BUS_DMA_NOWAIT)) {
goto dmafail;
}
isp->isp_result_dma = seg.ds_addr;
/* Load the buffer */
if (bus_dmamap_load_raw(dmatag, sbc->sbus_result_dmamap,
&seg, rseg, len, BUS_DMA_NOWAIT) != 0) {
bus_dmamem_free(dmatag, &seg, rseg);
goto dmafail;
}
/* Map DMA buffer in CPU addressable space */
if (bus_dmamem_map(dmatag, &seg, rseg, len,
(caddr_t *)&isp->isp_result,
BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) {
bus_dmamap_unload(dmatag, sbc->sbus_result_dmamap);
bus_dmamem_free(dmatag, &seg, rseg);
goto dmafail;
}
isp->isp_result_dma = sbc->sbus_result_dmamap->dm_segs[0].ds_addr;
return (0);
dmafail:
free(sbc->sbus_dmamap, M_DEVBUF);
free(isp->isp_xflist, M_DEVBUF);
return (1);
}
/*