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
14struct clk;
15struct device;
16struct page;
17
18struct tegra_smmu_enable {
19	unsigned int reg;
20	unsigned int bit;
21};
22
23/* latency allowance */
24struct tegra_mc_la {
25	unsigned int reg;
26	unsigned int shift;
27	unsigned int mask;
28	unsigned int def;
29};
30
31struct 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
42struct tegra_smmu_swgroup {
43	unsigned int swgroup;
44	unsigned int reg;
45};
46
47struct tegra_smmu_ops {
48	void (*flush_dcache)(struct page *page, unsigned long offset,
49			     size_t size);
50};
51
52struct 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_tlb_lines;
63	unsigned int num_asids;
64
65	const struct tegra_smmu_ops *ops;
66};
67
68struct tegra_mc;
69struct tegra_smmu;
70
71#ifdef CONFIG_TEGRA_IOMMU_SMMU
72struct tegra_smmu *tegra_smmu_probe(struct device *dev,
73				    const struct tegra_smmu_soc *soc,
74				    struct tegra_mc *mc);
75#else
76static inline struct tegra_smmu *
77tegra_smmu_probe(struct device *dev, const struct tegra_smmu_soc *soc,
78		 struct tegra_mc *mc)
79{
80	return NULL;
81}
82#endif
83
84struct tegra_mc_soc {
85	const struct tegra_mc_client *clients;
86	unsigned int num_clients;
87
88	const unsigned int *emem_regs;
89	unsigned int num_emem_regs;
90
91	unsigned int num_address_bits;
92	unsigned int atom_size;
93
94	const struct tegra_smmu_soc *smmu;
95};
96
97struct tegra_mc {
98	struct device *dev;
99	struct tegra_smmu *smmu;
100	void __iomem *regs;
101	struct clk *clk;
102	int irq;
103
104	const struct tegra_mc_soc *soc;
105	unsigned long tick;
106};
107
108#endif /* __SOC_TEGRA_MC_H__ */
109