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89184651 TR |
1 | /* |
2 | * Copyright (C) 2014 NVIDIA Corporation | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | ||
9 | #ifndef __SOC_TEGRA_MC_H__ | |
10 | #define __SOC_TEGRA_MC_H__ | |
11 | ||
12 | #include <linux/types.h> | |
13 | ||
14 | struct clk; | |
15 | struct device; | |
16 | struct page; | |
17 | ||
18 | struct tegra_smmu_enable { | |
19 | unsigned int reg; | |
20 | unsigned int bit; | |
21 | }; | |
22 | ||
23 | /* latency allowance */ | |
24 | struct tegra_mc_la { | |
25 | unsigned int reg; | |
26 | unsigned int shift; | |
27 | unsigned int mask; | |
28 | unsigned int def; | |
29 | }; | |
30 | ||
31 | struct tegra_mc_client { | |
32 | unsigned int id; | |
33 | const char *name; | |
34 | unsigned int swgroup; | |
35 | ||
36 | unsigned int fifo_size; | |
37 | ||
38 | struct tegra_smmu_enable smmu; | |
39 | struct tegra_mc_la la; | |
40 | }; | |
41 | ||
42 | struct tegra_smmu_swgroup { | |
43 | unsigned int swgroup; | |
44 | unsigned int reg; | |
45 | }; | |
46 | ||
47 | struct tegra_smmu_ops { | |
48 | void (*flush_dcache)(struct page *page, unsigned long offset, | |
49 | size_t size); | |
50 | }; | |
51 | ||
52 | struct tegra_smmu_soc { | |
53 | const struct tegra_mc_client *clients; | |
54 | unsigned int num_clients; | |
55 | ||
56 | const struct tegra_smmu_swgroup *swgroups; | |
57 | unsigned int num_swgroups; | |
58 | ||
59 | bool supports_round_robin_arbitration; | |
60 | bool supports_request_limit; | |
61 | ||
62 | unsigned int num_asids; | |
63 | ||
64 | const struct tegra_smmu_ops *ops; | |
65 | }; | |
66 | ||
67 | struct tegra_mc; | |
68 | struct tegra_smmu; | |
69 | ||
70 | #ifdef CONFIG_TEGRA_IOMMU_SMMU | |
71 | struct tegra_smmu *tegra_smmu_probe(struct device *dev, | |
72 | const struct tegra_smmu_soc *soc, | |
73 | struct tegra_mc *mc); | |
74 | #else | |
75 | static inline struct tegra_smmu * | |
76 | tegra_smmu_probe(struct device *dev, const struct tegra_smmu_soc *soc, | |
77 | struct tegra_mc *mc) | |
78 | { | |
79 | return NULL; | |
80 | } | |
81 | #endif | |
82 | ||
83 | struct tegra_mc_soc { | |
84 | const struct tegra_mc_client *clients; | |
85 | unsigned int num_clients; | |
86 | ||
87 | const unsigned int *emem_regs; | |
88 | unsigned int num_emem_regs; | |
89 | ||
90 | unsigned int num_address_bits; | |
91 | unsigned int atom_size; | |
92 | ||
93 | const struct tegra_smmu_soc *smmu; | |
94 | }; | |
95 | ||
96 | struct tegra_mc { | |
97 | struct device *dev; | |
98 | struct tegra_smmu *smmu; | |
99 | void __iomem *regs; | |
100 | struct clk *clk; | |
101 | int irq; | |
102 | ||
103 | const struct tegra_mc_soc *soc; | |
104 | unsigned long tick; | |
105 | }; | |
106 | ||
107 | #endif /* __SOC_TEGRA_MC_H__ */ |