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Commit | Line | Data |
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d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
cdd1737c DG |
2 | /* |
3 | * Defines for the SRAM driver | |
cdd1737c DG |
4 | */ |
5 | #ifndef __SRAM_H | |
6 | #define __SRAM_H | |
7 | ||
fec29bf0 MP |
8 | struct sram_config { |
9 | int (*init)(void); | |
10 | bool map_only_reserved; | |
11 | }; | |
12 | ||
cdd1737c DG |
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 { | |
fec29bf0 MP |
23 | const struct sram_config *config; |
24 | ||
cdd1737c DG |
25 | struct device *dev; |
26 | void __iomem *virt_base; | |
fec29bf0 | 27 | bool no_memory_wc; |
cdd1737c DG |
28 | |
29 | struct gen_pool *pool; | |
30 | struct clk *clk; | |
31 | ||
32 | struct sram_partition *partition; | |
33 | u32 partitions; | |
34 | }; | |
35 | ||
36 | struct sram_reserve { | |
37 | struct list_head list; | |
38 | u32 start; | |
39 | u32 size; | |
fec29bf0 | 40 | struct resource res; |
cdd1737c DG |
41 | bool export; |
42 | bool pool; | |
37afff0d | 43 | bool protect_exec; |
cdd1737c DG |
44 | const char *label; |
45 | }; | |
728bbe75 DG |
46 | |
47 | #ifdef CONFIG_SRAM_EXEC | |
48 | int sram_check_protect_exec(struct sram_dev *sram, struct sram_reserve *block, | |
49 | struct sram_partition *part); | |
50 | int sram_add_protect_exec(struct sram_partition *part); | |
51 | #else | |
52 | static inline int sram_check_protect_exec(struct sram_dev *sram, | |
53 | struct sram_reserve *block, | |
54 | struct sram_partition *part) | |
55 | { | |
56 | return -ENODEV; | |
57 | } | |
58 | ||
59 | static inline int sram_add_protect_exec(struct sram_partition *part) | |
60 | { | |
61 | return -ENODEV; | |
62 | } | |
63 | #endif /* CONFIG_SRAM_EXEC */ | |
cdd1737c | 64 | #endif /* __SRAM_H */ |