iram.h 1.3 KB

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  1. /*
  2. * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved.
  3. *
  4. * This program is free software; you can redistribute it and/or
  5. * modify it under the terms of the GNU General Public License
  6. * as published by the Free Software Foundation; either version 2
  7. * of the License, or (at your option) any later version.
  8. *
  9. * This program is distributed in the hope that it will be useful,
  10. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12. * GNU General Public License for more details.
  13. *
  14. * You should have received a copy of the GNU General Public License
  15. * along with this program; if not, write to the Free Software
  16. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  17. * MA 02110-1301, USA.
  18. */
  19. #include <linux/errno.h>
  20. #ifdef CONFIG_IRAM_ALLOC
  21. int __init iram_init(unsigned long base, unsigned long size);
  22. void __iomem *iram_alloc(unsigned int size, unsigned long *dma_addr);
  23. void iram_free(unsigned long dma_addr, unsigned int size);
  24. #else
  25. static inline int __init iram_init(unsigned long base, unsigned long size)
  26. {
  27. return -ENOMEM;
  28. }
  29. static inline void __iomem *iram_alloc(unsigned int size, unsigned long *dma_addr)
  30. {
  31. return NULL;
  32. }
  33. static inline void iram_free(unsigned long base, unsigned long size) {}
  34. #endif