arch/sh/include/asm/sram.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_SRAM_H
   3 #define __ASM_SRAM_H
   4
   5 #ifdef CONFIG_HAVE_SRAM_POOL
   6
   7 #include <linux/spinlock.h>
   8 #include <linux/genalloc.h>
   9
  10 /* arch/sh/mm/sram.c */
  11 extern struct gen_pool *sram_pool;
  12
  13 static inline unsigned long sram_alloc(size_t len)
  14 {
  15         if (!sram_pool)
  16                 return 0UL;
  17
  18         return gen_pool_alloc(sram_pool, len);
  19 }
  20
  21 static inline void sram_free(unsigned long addr, size_t len)
  22 {
  23         return gen_pool_free(sram_pool, addr, len);
  24 }
  25
  26 #else
  27
  28 static inline unsigned long sram_alloc(size_t len)
  29 {
  30         return 0;
  31 }
  32
  33 static inline void sram_free(unsigned long addr, size_t len)
  34 {
  35 }
  36
  37 #endif /* CONFIG_HAVE_SRAM_POOL */
  38
  39 #endif /* __ASM_SRAM_H */