Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Put SGMAP-related stuff in the DMA map structure directly, rather than

Browse Source 
indirecting through a pointer.
This commit is contained in:
thorpej 1998-01-17 21:53:52 +00:00
parent 405e360fa4
commit 3366b987d0
10 changed files with 71 additions and 141 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
sys/arch/alpha/common/sgmap_common.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: sgmap_common.c,v 1.4 1998/01/17 03:37:22 thorpej Exp $ */
/* $NetBSD: sgmap_common.c,v 1.5 1998/01/17 21:53:52 thorpej Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
@ -39,7 +39,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: sgmap_common.c,v 1.4 1998/01/17 03:37:22 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: sgmap_common.c,v 1.5 1998/01/17 21:53:52 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -120,41 +120,40 @@ alpha_sgmap_alloc(map, len, sgmap, flags)
struct alpha_sgmap *sgmap;
int flags;
{
struct alpha_sgmap_cookie *a = map->_dm_sgcookie;
int error;
#ifdef DIAGNOSTIC
if (a->apdc_flags & APDC_HAS_SGMAP)
if (map->_dm_flags & DMAMAP_HAS_SGMAP)
panic("alpha_sgmap_alloc: already have sgva space");
#endif
a->apdc_len = round_page(len);
error = extent_alloc(sgmap->aps_ex, a->apdc_len, NBPG,
map->_dm_sgvalen = round_page(len);
error = extent_alloc(sgmap->aps_ex, map->_dm_sgvalen, NBPG,
map->_dm_boundary, (flags & BUS_DMA_NOWAIT) ? EX_NOWAIT :
EX_WAITOK, &a->apdc_sgva);
EX_WAITOK, &map->_dm_sgva);
if (error == 0)
a->apdc_flags |= APDC_HAS_SGMAP;
map->_dm_flags |= DMAMAP_HAS_SGMAP;
else
a->apdc_flags &= ~APDC_HAS_SGMAP;
map->_dm_flags &= ~DMAMAP_HAS_SGMAP;
return (error);
}
void
alpha_sgmap_free(sgmap, a)
alpha_sgmap_free(map, sgmap)
bus_dmamap_t map;
struct alpha_sgmap *sgmap;
struct alpha_sgmap_cookie *a;
{
#ifdef DIAGNOSTIC
if ((a->apdc_flags & APDC_HAS_SGMAP) == 0)
if ((map->_dm_flags & DMAMAP_HAS_SGMAP) == 0)
panic("alpha_sgmap_free: no sgva space to free");
#endif
if (extent_free(sgmap->aps_ex, a->apdc_sgva,
a->apdc_len, EX_NOWAIT))
if (extent_free(sgmap->aps_ex, map->_dm_sgva, map->_dm_sgvalen,
EX_NOWAIT))
panic("alpha_sgmap_free");
a->apdc_flags &= ~APDC_HAS_SGMAP;
map->_dm_flags &= ~DMAMAP_HAS_SGMAP;
}

28
sys/arch/alpha/common/sgmap_typedep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: sgmap_typedep.c,v 1.5 1998/01/17 03:38:51 thorpej Exp $ */
/* $NetBSD: sgmap_typedep.c,v 1.6 1998/01/17 21:53:52 thorpej Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
@ -37,7 +37,7 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
__KERNEL_RCSID(0, "$NetBSD: sgmap_typedep.c,v 1.5 1998/01/17 03:38:51 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: sgmap_typedep.c,v 1.6 1998/01/17 21:53:52 thorpej Exp $");
#ifdef SGMAP_LOG
@ -67,7 +67,6 @@ __C(SGMAP_TYPE,_load)(t, map, buf, buflen, p, flags, sgmap)
int flags;
struct alpha_sgmap *sgmap;
{
struct alpha_sgmap_cookie *a = map->_dm_sgcookie;
vm_offset_t va = (vm_offset_t)buf;
vm_offset_t pa, endva;
bus_addr_t dmaoffset;
@ -117,13 +116,13 @@ __C(SGMAP_TYPE,_load)(t, map, buf, buflen, p, flags, sgmap)
*/
endva = round_page(va + buflen);
va = trunc_page(va);
if ((a->apdc_flags & APDC_HAS_SGMAP) == 0) {
if ((map->_dm_flags & DMAMAP_HAS_SGMAP) == 0) {
error = alpha_sgmap_alloc(map, endva - va, sgmap, flags);
if (error)
return (error);
}
pteidx = a->apdc_sgva >> PGSHIFT;
pteidx = map->_dm_sgva >> PGSHIFT;
pte = &page_table[pteidx * SGMAP_PTE_SPACING];
#ifdef SGMAP_DEBUG
@ -142,7 +141,7 @@ __C(SGMAP_TYPE,_load)(t, map, buf, buflen, p, flags, sgmap)
#ifdef SGMAP_LOG
if (panicstr == NULL) {
sl.sl_sgva = a->apdc_sgva;
sl.sl_sgva = map->_dm_sgva;
sl.sl_dmaaddr = map->dm_segs[0].ds_addr;
}
#endif
@ -155,11 +154,11 @@ __C(SGMAP_TYPE,_load)(t, map, buf, buflen, p, flags, sgmap)
map->dm_segs[0].ds_addr);
#endif
a->apdc_pteidx = pteidx;
a->apdc_ptecnt = 0;
map->_dm_pteidx = pteidx;
map->_dm_ptecnt = 0;
for (; va < endva; va += NBPG, pte += SGMAP_PTE_SPACING,
a->apdc_ptecnt++) {
map->_dm_ptecnt++) {
/*
* Get the physical address for this segment.
*/
@ -183,7 +182,7 @@ __C(SGMAP_TYPE,_load)(t, map, buf, buflen, p, flags, sgmap)
#ifdef SGMAP_LOG
if (panicstr == NULL) {
sl.sl_ptecnt = a->apdc_ptecnt;
sl.sl_ptecnt = map->_dm_ptecnt;
bcopy(&sl, &__C(SGMAP_TYPE,_log)[__C(SGMAP_TYPE,_log_next)],
sizeof(sl));
__C(SGMAP_TYPE,_log_last) = __C(SGMAP_TYPE,_log_next);
@ -246,7 +245,6 @@ __C(SGMAP_TYPE,_unload)(t, map, sgmap)
bus_dmamap_t map;
struct alpha_sgmap *sgmap;
{
struct alpha_sgmap_cookie *a = map->_dm_sgcookie;
SGMAP_PTE_TYPE *pte, *page_table = sgmap->aps_pt;
int ptecnt;
#ifdef SGMAP_LOG
@ -258,7 +256,7 @@ __C(SGMAP_TYPE,_unload)(t, map, sgmap)
bzero(sl, sizeof(*sl));
sl->sl_op = 0;
sl->sl_sgmap = sgmap;
sl->sl_sgva = a->apdc_sgva;
sl->sl_sgva = map->_dm_sgva;
sl->sl_dmaaddr = map->dm_segs[0].ds_addr;
__C(SGMAP_TYPE,_log_last) = __C(SGMAP_TYPE,_log_next);
@ -271,8 +269,8 @@ __C(SGMAP_TYPE,_unload)(t, map, sgmap)
/*
* Invalidate the PTEs for the mapping.
*/
for (ptecnt = a->apdc_ptecnt,
pte = &page_table[a->apdc_pteidx * SGMAP_PTE_SPACING];
for (ptecnt = map->_dm_ptecnt,
pte = &page_table[map->_dm_pteidx * SGMAP_PTE_SPACING];
ptecnt != 0; ptecnt--, pte += SGMAP_PTE_SPACING) {
#ifdef SGMAP_DEBUG
if (__C(SGMAP_TYPE,_debug))
@ -287,5 +285,5 @@ __C(SGMAP_TYPE,_unload)(t, map, sgmap)
* if necessary.
*/
if ((map->_dm_flags & BUS_DMA_ALLOCNOW) == 0)
alpha_sgmap_free(sgmap, a);
alpha_sgmap_free(map, sgmap);
}

4
sys/arch/alpha/common/sgmap_typedep.h
View File

@ -1,7 +1,7 @@
/* $NetBSD: sgmap_typedep.h,v 1.2 1997/06/06 23:58:05 thorpej Exp $ */
/* $NetBSD: sgmap_typedep.h,v 1.3 1998/01/17 21:53:53 thorpej Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation

21
sys/arch/alpha/common/sgmapvar.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: sgmapvar.h,v 1.4 1998/01/17 03:37:23 thorpej Exp $ */
/* $NetBSD: sgmapvar.h,v 1.5 1998/01/17 21:53:54 thorpej Exp $ */
#define SGMAP_LOG
@ -60,22 +60,6 @@ struct alpha_sgmap {
bus_addr_t aps_wbase; /* base of the dma window */
};
/*
* Cookie used to store SGMAP state for a DMA mapping. We
* could compute some of this at unload time, but storing it
* is convenient.
*/
struct alpha_sgmap_cookie {
int apdc_pteidx; /* PTE index */
int apdc_ptecnt; /* PTE count */
u_long apdc_sgva; /* allocated sgva */
bus_size_t apdc_len; /* sgva size */
int apdc_flags;
};
/* apdc_flags */
#define APDC_HAS_SGMAP 0x01 /* sgva/len are valid */
#ifdef SGMAP_LOG
/*
* Log entry, used for debugging SGMAPs.
@ -98,5 +82,4 @@ void alpha_sgmap_init __P((bus_dma_tag_t, struct alpha_sgmap *,
int alpha_sgmap_alloc __P((bus_dmamap_t, bus_size_t,
struct alpha_sgmap *, int));
void alpha_sgmap_free __P((struct alpha_sgmap *,
struct alpha_sgmap_cookie *));
void alpha_sgmap_free __P((bus_dmamap_t, struct alpha_sgmap *));

20
sys/arch/alpha/include/bus.h
View File

@ -1,7 +1,7 @@
/* $NetBSD: bus.h,v 1.15 1997/08/13 02:53:03 cgd Exp $ */
/* $NetBSD: bus.h,v 1.16 1998/01/17 21:53:55 thorpej Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
@ -402,10 +402,14 @@ struct alpha_bus_space {
#define BUS_DMA_BUS3 0x40
#define BUS_DMA_BUS4 0x80
/*
* Private flags stored in the DMA map.
*/
#define DMAMAP_HAS_SGMAP 0x80000000 /* sgva/len are valid */
/* Forwards needed by prototypes below. */
struct mbuf;
struct uio;
struct alpha_sgmap_cookie;
/*
* bus_dmasync_op_t
@ -543,8 +547,14 @@ struct alpha_bus_dmamap {
bus_size_t _dm_boundary; /* don't cross this */
int _dm_flags; /* misc. flags */
/* SGMAP cookie used for SGMAP-mapped DMA */
struct alpha_sgmap_cookie *_dm_sgcookie;
/*
* This is used only for SGMAP-mapped DMA, but we keep it
* here to avoid pointless indirection.
*/
int _dm_pteidx; /* PTE index */
int _dm_ptecnt; /* PTE count */
u_long _dm_sgva; /* allocated sgva */
bus_size_t _dm_sgvalen; /* svga length */
/*
* PUBLIC MEMBERS: these are used by machine-independent code.

22
sys/arch/alpha/pci/apecs_dma.c
View File

@ -1,7 +1,7 @@
/* $NetBSD: apecs_dma.c,v 1.4 1998/01/17 03:40:32 thorpej Exp $ */
/* $NetBSD: apecs_dma.c,v 1.5 1998/01/17 21:53:56 thorpej Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
@ -39,7 +39,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: apecs_dma.c,v 1.4 1998/01/17 03:40:32 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: apecs_dma.c,v 1.5 1998/01/17 21:53:56 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -245,7 +245,6 @@ apecs_bus_dmamap_create_sgmap(t, size, nsegments, maxsegsz, boundary,
bus_dmamap_t *dmamp;
{
struct apecs_config *acp = t->_cookie;
struct alpha_sgmap_cookie *a;
bus_dmamap_t map;
int error;
@ -256,15 +255,6 @@ apecs_bus_dmamap_create_sgmap(t, size, nsegments, maxsegsz, boundary,
map = *dmamp;
a = malloc(sizeof(struct alpha_sgmap_cookie), M_DEVBUF,
(flags & BUS_DMA_NOWAIT) ? M_NOWAIT : M_WAITOK);
if (a == NULL) {
_bus_dmamap_destroy(t, map);
return (ENOMEM);
}
bzero(a, sizeof(struct alpha_sgmap_cookie));
map->_dm_sgcookie = a;
if (flags & BUS_DMA_ALLOCNOW) {
error = alpha_sgmap_alloc(map, round_page(size),
&acp->ac_sgmap, flags);
@ -284,12 +274,10 @@ apecs_bus_dmamap_destroy_sgmap(t, map)
bus_dmamap_t map;
{
struct apecs_config *acp = t->_cookie;
struct alpha_sgmap_cookie *a = map->_dm_sgcookie;
if (a->apdc_flags & APDC_HAS_SGMAP)
alpha_sgmap_free(&acp->ac_sgmap, a);
if (map->_dm_flags & DMAMAP_HAS_SGMAP)
alpha_sgmap_free(map, &acp->ac_sgmap);
free(a, M_DEVBUF);
_bus_dmamap_destroy(t, map);
}

22
sys/arch/alpha/pci/cia_dma.c
View File

@ -1,7 +1,7 @@
/* $NetBSD: cia_dma.c,v 1.4 1998/01/17 03:43:59 thorpej Exp $ */
/* $NetBSD: cia_dma.c,v 1.5 1998/01/17 21:53:57 thorpej Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
@ -39,7 +39,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: cia_dma.c,v 1.4 1998/01/17 03:43:59 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: cia_dma.c,v 1.5 1998/01/17 21:53:57 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -247,7 +247,6 @@ cia_bus_dmamap_create_sgmap(t, size, nsegments, maxsegsz, boundary,
bus_dmamap_t *dmamp;
{
struct cia_config *ccp = t->_cookie;
struct alpha_sgmap_cookie *a;
bus_dmamap_t map;
int error;
@ -258,15 +257,6 @@ cia_bus_dmamap_create_sgmap(t, size, nsegments, maxsegsz, boundary,
map = *dmamp;
a = malloc(sizeof(struct alpha_sgmap_cookie), M_DEVBUF,
(flags & BUS_DMA_NOWAIT) ? M_NOWAIT : M_WAITOK);
if (a == NULL) {
_bus_dmamap_destroy(t, map);
return (ENOMEM);
}
bzero(a, sizeof(struct alpha_sgmap_cookie));
map->_dm_sgcookie = a;
if (flags & BUS_DMA_ALLOCNOW) {
error = alpha_sgmap_alloc(map, round_page(size),
&ccp->cc_sgmap, flags);
@ -286,12 +276,10 @@ cia_bus_dmamap_destroy_sgmap(t, map)
bus_dmamap_t map;
{
struct cia_config *ccp = t->_cookie;
struct alpha_sgmap_cookie *a = map->_dm_sgcookie;
if (a->apdc_flags & APDC_HAS_SGMAP)
alpha_sgmap_free(&ccp->cc_sgmap, a);
if (map->_dm_flags & DMAMAP_HAS_SGMAP)
alpha_sgmap_free(map, &ccp->cc_sgmap);
free(a, M_DEVBUF);
_bus_dmamap_destroy(t, map);
}

22
sys/arch/alpha/pci/dwlpx_dma.c
View File

@ -1,7 +1,7 @@
/* $NetBSD: dwlpx_dma.c,v 1.4 1998/01/17 03:40:33 thorpej Exp $ */
/* $NetBSD: dwlpx_dma.c,v 1.5 1998/01/17 21:53:58 thorpej Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
@ -39,7 +39,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: dwlpx_dma.c,v 1.4 1998/01/17 03:40:33 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: dwlpx_dma.c,v 1.5 1998/01/17 21:53:58 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -278,7 +278,6 @@ dwlpx_bus_dmamap_create_sgmap(t, size, nsegments, maxsegsz, boundary,
bus_dmamap_t *dmamp;
{
struct dwlpx_config *ccp = t->_cookie;
struct alpha_sgmap_cookie *a;
bus_dmamap_t map;
int error;
@ -289,15 +288,6 @@ dwlpx_bus_dmamap_create_sgmap(t, size, nsegments, maxsegsz, boundary,
map = *dmamp;
a = malloc(sizeof(struct alpha_sgmap_cookie), M_DEVBUF,
(flags & BUS_DMA_NOWAIT) ? M_NOWAIT : M_WAITOK);
if (a == NULL) {
_bus_dmamap_destroy(t, map);
return (ENOMEM);
}
bzero(a, sizeof(struct alpha_sgmap_cookie));
map->_dm_sgcookie = a;
if (flags & BUS_DMA_ALLOCNOW) {
error = alpha_sgmap_alloc(map, round_page(size),
&ccp->cc_sgmap, flags);
@ -317,12 +307,10 @@ dwlpx_bus_dmamap_destroy_sgmap(t, map)
bus_dmamap_t map;
{
struct dwlpx_config *ccp = t->_cookie;
struct alpha_sgmap_cookie *a = map->_dm_sgcookie;
if (a->apdc_flags & APDC_HAS_SGMAP)
alpha_sgmap_free(&ccp->cc_sgmap, a);
if (map->_dm_flags & DMAMAP_HAS_SGMAP)
alpha_sgmap_free(map, &ccp->cc_sgmap);
free(a, M_DEVBUF);
_bus_dmamap_destroy(t, map);
}

22
sys/arch/alpha/pci/lca_dma.c
View File

@ -1,7 +1,7 @@
/* $NetBSD: lca_dma.c,v 1.4 1998/01/17 03:40:33 thorpej Exp $ */
/* $NetBSD: lca_dma.c,v 1.5 1998/01/17 21:53:58 thorpej Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
@ -39,7 +39,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: lca_dma.c,v 1.4 1998/01/17 03:40:33 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: lca_dma.c,v 1.5 1998/01/17 21:53:58 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -248,7 +248,6 @@ lca_bus_dmamap_create_sgmap(t, size, nsegments, maxsegsz, boundary,
bus_dmamap_t *dmamp;
{
struct lca_config *lcp = t->_cookie;
struct alpha_sgmap_cookie *a;
bus_dmamap_t map;
int error;
@ -259,15 +258,6 @@ lca_bus_dmamap_create_sgmap(t, size, nsegments, maxsegsz, boundary,
map = *dmamp;
a = malloc(sizeof(struct alpha_sgmap_cookie), M_DEVBUF,
(flags & BUS_DMA_NOWAIT) ? M_NOWAIT : M_WAITOK);
if (a == NULL) {
_bus_dmamap_destroy(t, map);
return (ENOMEM);
}
bzero(a, sizeof(struct alpha_sgmap_cookie));
map->_dm_sgcookie = a;
if (flags & BUS_DMA_ALLOCNOW) {
error = alpha_sgmap_alloc(map, round_page(size),
&lcp->lc_sgmap, flags);
@ -287,12 +277,10 @@ lca_bus_dmamap_destroy_sgmap(t, map)
bus_dmamap_t map;
{
struct lca_config *lcp = t->_cookie;
struct alpha_sgmap_cookie *a = map->_dm_sgcookie;
if (a->apdc_flags & APDC_HAS_SGMAP)
alpha_sgmap_free(&lcp->lc_sgmap, a);
if (map->_dm_flags & DMAMAP_HAS_SGMAP)
alpha_sgmap_free(map, &lcp->lc_sgmap);
free(a, M_DEVBUF);
_bus_dmamap_destroy(t, map);
}

22
sys/arch/alpha/tc/tc_dma_3000_500.c
View File

@ -1,7 +1,7 @@
/* $NetBSD: tc_dma_3000_500.c,v 1.3 1997/09/02 13:20:31 thorpej Exp $ */
/* $NetBSD: tc_dma_3000_500.c,v 1.4 1998/01/17 21:53:59 thorpej Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
@ -39,7 +39,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: tc_dma_3000_500.c,v 1.3 1997/09/02 13:20:31 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: tc_dma_3000_500.c,v 1.4 1998/01/17 21:53:59 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -125,7 +125,6 @@ tc_bus_dmamap_create_sgmap(t, size, nsegments, maxsegsz, boundary,
bus_dmamap_t *dmamp;
{
struct tc_dma_slot_info *tdsi = t->_cookie;
struct alpha_sgmap_cookie *a;
bus_dmamap_t map;
int error;
@ -136,15 +135,6 @@ tc_bus_dmamap_create_sgmap(t, size, nsegments, maxsegsz, boundary,
map = *dmamp;
a = malloc(sizeof(struct alpha_sgmap_cookie), M_DEVBUF,
(flags & BUS_DMA_NOWAIT) ? M_NOWAIT : M_WAITOK);
if (a == NULL) {
_bus_dmamap_destroy(t, map);
return (ENOMEM);
}
bzero(a, sizeof(struct alpha_sgmap_cookie));
map->_dm_sgcookie = a;
if (flags & BUS_DMA_ALLOCNOW) {
error = alpha_sgmap_alloc(map, round_page(size),
&tdsi->tdsi_sgmap, flags);
@ -164,12 +154,10 @@ tc_bus_dmamap_destroy_sgmap(t, map)
bus_dmamap_t map;
{
struct tc_dma_slot_info *tdsi = t->_cookie;
struct alpha_sgmap_cookie *a = map->_dm_sgcookie;
if (a->apdc_flags & APDC_HAS_SGMAP)
alpha_sgmap_free(&tdsi->tdsi_sgmap, a);
if (map->_dm_flags & DMAMAP_HAS_SGMAP)
alpha_sgmap_free(map, &tdsi->tdsi_sgmap);
free(a, M_DEVBUF);
_bus_dmamap_destroy(t, map);
}