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 
sram_alloc(size_t len)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 
sram_free(unsigned long addr,size_t len)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 
sram_alloc(size_t len)28 static inline unsigned long sram_alloc(size_t len)
29 {
30 	return 0;
31 }
32 
sram_free(unsigned long addr,size_t len)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 */
40