include/physmem.h

   1 /*
   2  * Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
   3  * Use of this source code is governed by a BSD-style license that can be
   4  * found in the LICENSE file.
   5  *
   6  * Alternatively, this software may be distributed under the terms of the
   7  * GNU General Public License ("GPL") version 2 as published by the Free
   8  * Software Foundation.
   9  */
  10
  11 /*
  12  * These functions work like memset but operate on physical memory which may
  13  * not be accessible directly.
  14  *
  15  * @param s     The physical address to start setting memory at.
  16  * @param c     The character to set each byte of the region to.
  17  * @param n     The number of bytes to set.
  18  *
  19  * @return      The physical address of the memory which was set.
  20  */
  21 phys_addr_t arch_phys_memset(phys_addr_t s, int c, phys_size_t n);