2 * Copyright (C) 2014 NVIDIA Corporation
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.
9 #ifndef __SOC_TEGRA_MC_H__
10 #define __SOC_TEGRA_MC_H__
12 #include <linux/reset-controller.h>
13 #include <linux/types.h>
19 struct tegra_smmu_enable {
24 struct tegra_mc_timing {
30 /* latency allowance */
38 struct tegra_mc_client {
43 unsigned int fifo_size;
45 struct tegra_smmu_enable smmu;
46 struct tegra_mc_la la;
49 struct tegra_smmu_swgroup {
55 struct tegra_smmu_group_soc {
57 const unsigned int *swgroups;
58 unsigned int num_swgroups;
61 struct tegra_smmu_soc {
62 const struct tegra_mc_client *clients;
63 unsigned int num_clients;
65 const struct tegra_smmu_swgroup *swgroups;
66 unsigned int num_swgroups;
68 const struct tegra_smmu_group_soc *groups;
69 unsigned int num_groups;
71 bool supports_round_robin_arbitration;
72 bool supports_request_limit;
74 unsigned int num_tlb_lines;
75 unsigned int num_asids;
81 #ifdef CONFIG_TEGRA_IOMMU_SMMU
82 struct tegra_smmu *tegra_smmu_probe(struct device *dev,
83 const struct tegra_smmu_soc *soc,
85 void tegra_smmu_remove(struct tegra_smmu *smmu);
87 static inline struct tegra_smmu *
88 tegra_smmu_probe(struct device *dev, const struct tegra_smmu_soc *soc,
94 static inline void tegra_smmu_remove(struct tegra_smmu *smmu)
99 struct tegra_mc_reset {
102 unsigned int control;
108 struct tegra_mc_reset_ops {
109 int (*hotreset_assert)(struct tegra_mc *mc,
110 const struct tegra_mc_reset *rst);
111 int (*hotreset_deassert)(struct tegra_mc *mc,
112 const struct tegra_mc_reset *rst);
113 int (*block_dma)(struct tegra_mc *mc,
114 const struct tegra_mc_reset *rst);
115 bool (*dma_idling)(struct tegra_mc *mc,
116 const struct tegra_mc_reset *rst);
117 int (*unblock_dma)(struct tegra_mc *mc,
118 const struct tegra_mc_reset *rst);
119 int (*reset_status)(struct tegra_mc *mc,
120 const struct tegra_mc_reset *rst);
123 struct tegra_mc_soc {
124 const struct tegra_mc_client *clients;
125 unsigned int num_clients;
127 const unsigned long *emem_regs;
128 unsigned int num_emem_regs;
130 unsigned int num_address_bits;
131 unsigned int atom_size;
135 const struct tegra_smmu_soc *smmu;
139 const struct tegra_mc_reset_ops *reset_ops;
140 const struct tegra_mc_reset *resets;
141 unsigned int num_resets;
146 struct tegra_smmu *smmu;
147 void __iomem *regs, *regs2;
151 const struct tegra_mc_soc *soc;
154 struct tegra_mc_timing *timings;
155 unsigned int num_timings;
157 struct reset_controller_dev reset;
162 void tegra_mc_write_emem_configuration(struct tegra_mc *mc, unsigned long rate);
163 unsigned int tegra_mc_get_emem_device_count(struct tegra_mc *mc);
165 #endif /* __SOC_TEGRA_MC_H__ */