1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * Defines for the SRAM driver |
4 | */ |
5 | #ifndef __SRAM_H |
6 | #define __SRAM_H |
7 | |
8 | struct sram_config { |
9 | int (*init)(void); |
10 | bool map_only_reserved; |
11 | }; |
12 | |
13 | struct sram_partition { |
14 | void __iomem *base; |
15 | |
16 | struct gen_pool *pool; |
17 | struct bin_attribute battr; |
18 | struct mutex lock; |
19 | struct list_head list; |
20 | }; |
21 | |
22 | struct sram_dev { |
23 | const struct sram_config *config; |
24 | |
25 | struct device *dev; |
26 | void __iomem *virt_base; |
27 | bool no_memory_wc; |
28 | |
29 | struct gen_pool *pool; |
30 | |
31 | struct sram_partition *partition; |
32 | u32 partitions; |
33 | }; |
34 | |
35 | struct sram_reserve { |
36 | struct list_head list; |
37 | u32 start; |
38 | u32 size; |
39 | struct resource res; |
40 | bool export; |
41 | bool pool; |
42 | bool protect_exec; |
43 | const char *label; |
44 | }; |
45 | |
46 | #ifdef CONFIG_SRAM_EXEC |
47 | int sram_check_protect_exec(struct sram_dev *sram, struct sram_reserve *block, |
48 | struct sram_partition *part); |
49 | int sram_add_protect_exec(struct sram_partition *part); |
50 | #else |
51 | static inline int sram_check_protect_exec(struct sram_dev *sram, |
52 | struct sram_reserve *block, |
53 | struct sram_partition *part) |
54 | { |
55 | return -ENODEV; |
56 | } |
57 | |
58 | static inline int sram_add_protect_exec(struct sram_partition *part) |
59 | { |
60 | return -ENODEV; |
61 | } |
62 | #endif /* CONFIG_SRAM_EXEC */ |
63 | #endif /* __SRAM_H */ |
64 | |