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

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 *  SRAM Memory Management
   4 *
   5 *  Copyright (c) 2011 Marvell Semiconductors Inc.
   6 */
   7
   8#ifndef __DMA_MMP_TDMA_H
   9#define __DMA_MMP_TDMA_H
  10
  11#include <linux/genalloc.h>
  12
  13/* ARBITRARY:  SRAM allocations are multiples of this 2^N size */
  14#define SRAM_GRANULARITY        512
  15
  16enum sram_type {
  17        MMP_SRAM_UNDEFINED = 0,
  18        MMP_ASRAM,
  19        MMP_ISRAM,
  20};
  21
  22struct sram_platdata {
  23        char *pool_name;
  24        int granularity;
  25};
  26
  27#ifdef CONFIG_MMP_SRAM
  28extern struct gen_pool *sram_get_gpool(char *pool_name);
  29#else
  30static inline struct gen_pool *sram_get_gpool(char *pool_name)
  31{
  32        return NULL;
  33}
  34#endif
  35
  36#endif /* __DMA_MMP_TDMA_H */
  37