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 */
  10 extern struct gen_pool *sram_pool;
  11
  12 static 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
  20 static 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
  27 static inline unsigned long sram_alloc(size_t len)
  28 {
  29         return 0;
  30 }
  31
  32 static 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 */