8186b52744
the LinuxKPI for accessing user-space memory in the kernel. Add functions to hold and wire physical page(s) based on a given range of user-space virtual addresses. Add functions to get and put a reference on, wire, hold, mark accessed, copy and dirty a physical page. Add new VM related structures and defines as a preparation step for advancing the memory map capabilities of the LinuxKPI. Add function to figure out if a virtual address was allocated using malloc(). Add function to convert a virtual kernel address into its physical page pointer. Obtained from: kmacy @ MFC after: 1 week Sponsored by: Mellanox Technologies
44 lines
1.7 KiB
C
44 lines
1.7 KiB
C
/*-
|
|
* Copyright (c) 2010 Isilon Systems, Inc.
|
|
* Copyright (c) 2010 iX Systems, Inc.
|
|
* Copyright (c) 2010 Panasas, Inc.
|
|
* Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice unmodified, this list of conditions, and the following
|
|
* disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
#ifndef _ASM_PGTABLE_H_
|
|
#define _ASM_PGTABLE_H_
|
|
|
|
#include <linux/page.h>
|
|
|
|
typedef unsigned long pteval_t;
|
|
typedef unsigned long pmdval_t;
|
|
typedef unsigned long pudval_t;
|
|
typedef unsigned long pgdval_t;
|
|
typedef unsigned long pgprotval_t;
|
|
typedef struct page *pgtable_t;
|
|
|
|
#endif /* _ASM_PGTABLE_H_ */
|