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 */
40
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