LXR linux/arch/sh/include/asm/sram.h

   1#ifndef __ASM_SRAM_H
   2#define __ASM_SRAM_H
   3
   4#ifdef CONFIG_HAVE_SRAM_POOL
   5
   6#include <linux/spinlock.h>
   7#include <linux/genalloc.h>
   8
   9/* arch/sh/mm/sram.c */
  10extern struct gen_pool *sram_pool;
  11
  12static inline unsigned long sram_alloc(size_t len)
  13{
  14        if (!sram_pool)
  15                return 0UL;
  16
  17        return gen_pool_alloc(sram_pool, len);
  18}
  19
  20static inline void sram_free(unsigned long addr, size_t len)
  21{
  22        return gen_pool_free(sram_pool, addr, len);
  23}
  24
  25#else
  26
  27static inline unsigned long sram_alloc(size_t len)
  28{
  29        return 0;
  30}
  31
  32static inline void sram_free(unsigned long addr, size_t len)
  33{
  34}
  35
  36#endif /* CONFIG_HAVE_SRAM_POOL */
  37
  38#endif /* __ASM_SRAM_H */
  39