include/sys/physmem.h

   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 (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 #ifndef _PHYSMEM_H
  27 #define _PHYSMEM_H
  28
  29 #pragma ident   "%Z%%M% %I%     %E% SMI"
  30
  31 #ifdef  __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 /* ioctl values */
  36 #define PHYSMEM_SETUP 1
  37 #define PHYSMEM_MAP 2
  38 #define PHYSMEM_DESTROY 3
  39
  40 /* flags values */
  41 #define PHYSMEM_CAGE    (1 << 0)
  42 #define PHYSMEM_RETIRED (1 << 1)
  43
  44 struct physmem_setup_param {
  45         uint64_t req_paddr;     /* requested physical address */
  46         uint64_t len;           /* length of memory to be allocated */
  47         uint64_t user_va;       /* VA to associate with req_paddr */
  48         uint64_t cookie;        /* cookie returned for destroy function */
  49 };
  50
  51 struct physmem_map_param {
  52         uint64_t req_paddr;     /* requested physical address */
  53         uint64_t ret_va;        /* VA which mapped req_paddr */
  54         uint32_t flags;         /* flags for cage or retired pages */
  55 };
  56
  57 #ifdef  __cplusplus
  58 }
  59 #endif
  60
  61 #endif  /* _PHYSMEM_H */