usr/src/uts/i86pc/os/dvma.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 1990-1998, by Sun Microsystems, Inc.
  24  * All rights reserved.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include <sys/types.h>
  30 #include <sys/param.h>
  31 #include <sys/systm.h>
  32 #include <sys/kmem.h>
  33 #include <sys/cpu.h>
  34 #include <sys/sunddi.h>
  35 #include <sys/ddi_impldefs.h>
  36
  37 /*ARGSUSED*/
  38 unsigned long
  39 dvma_pagesize(dev_info_t *dip)
  40 {
  41         return (0);
  42 }
  43
  44 /*ARGSUSED*/
  45 int
  46 dvma_reserve(dev_info_t *dip,  ddi_dma_lim_t *limp, u_int pages,
  47     ddi_dma_handle_t *handlep)
  48 {
  49         return (DDI_DMA_NORESOURCES);
  50 }
  51
  52 /*ARGSUSED*/
  53 void
  54 dvma_release(ddi_dma_handle_t h)
  55 {
  56 }
  57
  58 /*ARGSUSED*/
  59 void
  60 dvma_kaddr_load(ddi_dma_handle_t h, caddr_t a, u_int len, u_int index,
  61         ddi_dma_cookie_t *cp)
  62 {
  63 }
  64
  65 /*ARGSUSED*/
  66 void
  67 dvma_unload(ddi_dma_handle_t h, u_int objindex, u_int type)
  68 {
  69 }
  70
  71 /*ARGSUSED*/
  72 void
  73 dvma_sync(ddi_dma_handle_t h, u_int objindex, u_int type)
  74 {
  75 }