drivers/misc/sram.h

   1 /*
   2  * Defines for the SRAM driver
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8 #ifndef __SRAM_H
   9 #define __SRAM_H
  10
  11 struct sram_partition {
  12         void __iomem *base;
  13
  14         struct gen_pool *pool;
  15         struct bin_attribute battr;
  16         struct mutex lock;
  17         struct list_head list;
  18 };
  19
  20 struct sram_dev {
  21         struct device *dev;
  22         void __iomem *virt_base;
  23
  24         struct gen_pool *pool;
  25         struct clk *clk;
  26
  27         struct sram_partition *partition;
  28         u32 partitions;
  29 };
  30
  31 struct sram_reserve {
  32         struct list_head list;
  33         u32 start;
  34         u32 size;
  35         bool export;
  36         bool pool;
  37         bool protect_exec;
  38         const char *label;
  39 };
  40
  41 #ifdef CONFIG_SRAM_EXEC
  42 int sram_check_protect_exec(struct sram_dev *sram, struct sram_reserve *block,
  43                             struct sram_partition *part);
  44 int sram_add_protect_exec(struct sram_partition *part);
  45 #else
  46 static inline int sram_check_protect_exec(struct sram_dev *sram,
  47                                           struct sram_reserve *block,
  48                                           struct sram_partition *part)
  49 {
  50         return -ENODEV;
  51 }
  52
  53 static inline int sram_add_protect_exec(struct sram_partition *part)
  54 {
  55         return -ENODEV;
  56 }
  57 #endif /* CONFIG_SRAM_EXEC */
  58 #endif /* __SRAM_H */