162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci#ifndef __ASM_SRAM_H 362306a36Sopenharmony_ci#define __ASM_SRAM_H 462306a36Sopenharmony_ci 562306a36Sopenharmony_ci#ifdef CONFIG_HAVE_SRAM_POOL 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci#include <linux/spinlock.h> 862306a36Sopenharmony_ci#include <linux/genalloc.h> 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci/* arch/sh/mm/sram.c */ 1162306a36Sopenharmony_ciextern struct gen_pool *sram_pool; 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_cistatic inline unsigned long sram_alloc(size_t len) 1462306a36Sopenharmony_ci{ 1562306a36Sopenharmony_ci if (!sram_pool) 1662306a36Sopenharmony_ci return 0UL; 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ci return gen_pool_alloc(sram_pool, len); 1962306a36Sopenharmony_ci} 2062306a36Sopenharmony_ci 2162306a36Sopenharmony_cistatic inline void sram_free(unsigned long addr, size_t len) 2262306a36Sopenharmony_ci{ 2362306a36Sopenharmony_ci return gen_pool_free(sram_pool, addr, len); 2462306a36Sopenharmony_ci} 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_ci#else 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_cistatic inline unsigned long sram_alloc(size_t len) 2962306a36Sopenharmony_ci{ 3062306a36Sopenharmony_ci return 0; 3162306a36Sopenharmony_ci} 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_cistatic inline void sram_free(unsigned long addr, size_t len) 3462306a36Sopenharmony_ci{ 3562306a36Sopenharmony_ci} 3662306a36Sopenharmony_ci 3762306a36Sopenharmony_ci#endif /* CONFIG_HAVE_SRAM_POOL */ 3862306a36Sopenharmony_ci 3962306a36Sopenharmony_ci#endif /* __ASM_SRAM_H */ 40