physmem.h 765 B

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  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. * These functions work like memset but operate on physical memory which may
  12. * not be accessible directly.
  13. *
  14. * @param s The physical address to start setting memory at.
  15. * @param c The character to set each byte of the region to.
  16. * @param n The number of bytes to set.
  17. *
  18. * @return The physical address of the memory which was set.
  19. */
  20. phys_addr_t arch_phys_memset(phys_addr_t s, int c, phys_size_t n);