b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 */ |