LXR linux/include/linux/platform_data/dma-mmp

   1/*
   2 *  SRAM Memory Management
   3 *
   4 *  Copyright (c) 2011 Marvell Semiconductors Inc.
   5 *
   6 *  This program is free software; you can redistribute it and/or modify
   7 *  it under the terms of the GNU General Public License version 2 as
   8 *  published by the Free Software Foundation.
   9 *
  10 */
  11
  12#ifndef __DMA_MMP_TDMA_H
  13#define __DMA_MMP_TDMA_H
  14
  15#include <linux/genalloc.h>
  16
  17/* ARBITRARY:  SRAM allocations are multiples of this 2^N size */
  18#define SRAM_GRANULARITY        512
  19
  20enum sram_type {
  21        MMP_SRAM_UNDEFINED = 0,
  22        MMP_ASRAM,
  23        MMP_ISRAM,
  24};
  25
  26struct sram_platdata {
  27        char *pool_name;
  28        int granularity;
  29};
  30
  31#ifdef CONFIG_MMP_SRAM
  32extern struct gen_pool *sram_get_gpool(char *pool_name);
  33#else
  34static inline struct gen_pool *sram_get_gpool(char *pool_name)
  35{
  36        return NULL;
  37}
  38#endif
  39
  40#endif /* __DMA_MMP_TDMA_H */
  41