release/src-rt-6.x.4708/linux/linux-2.6.36/arch/avr32/mach-at32ap/include/mach/sram.h

   1 /*
   2  * Simple SRAM allocator
   3  *
   4  * Copyright (C) 2008 Atmel Corporation
   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 #ifndef __ASM_AVR32_ARCH_SRAM_H
  11 #define __ASM_AVR32_ARCH_SRAM_H
  12
  13 #include <linux/genalloc.h>
  14
  15 extern struct gen_pool *sram_pool;
  16
  17 static inline unsigned long sram_alloc(size_t len)
  18 {
  19         if (!sram_pool)
  20                 return 0UL;
  21
  22         return gen_pool_alloc(sram_pool, len);
  23 }
  24
  25 static inline void sram_free(unsigned long addr, size_t len)
  26 {
  27         return gen_pool_free(sram_pool, addr, len);
  28 }
  29
  30 #endif /* __ASM_AVR32_ARCH_SRAM_H */