LXR linux/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 */
  11extern struct gen_pool *sram_pool;
  12
  13static 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
  21static 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
  28static inline unsigned long sram_alloc(size_t len)
  29{
  30        return 0;
  31}
  32
  33static 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 */
  40