1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
6 #ifndef __SOC_TEGRA_BPMP_H
7 #define __SOC_TEGRA_BPMP_H
9 #include <linux/mailbox_client.h>
10 #include <linux/pm_domain.h>
11 #include <linux/reset-controller.h>
12 #include <linux/semaphore.h>
13 #include <linux/types.h>
15 #include <soc/tegra/bpmp-abi.h>
17 struct tegra_bpmp_clk;
18 struct tegra_bpmp_ops;
20 struct tegra_bpmp_soc {
26 } cpu_tx, thread, cpu_rx;
29 const struct tegra_bpmp_ops *ops;
30 unsigned int num_resets;
33 struct tegra_bpmp_mb_data {
36 u8 data[MSG_DATA_MIN_SZ];
39 struct tegra_bpmp_channel {
40 struct tegra_bpmp *bpmp;
41 struct tegra_bpmp_mb_data *ib;
42 struct tegra_bpmp_mb_data *ob;
43 struct completion completion;
44 struct tegra_ivc *ivc;
48 typedef void (*tegra_bpmp_mrq_handler_t)(unsigned int mrq,
49 struct tegra_bpmp_channel *channel,
52 struct tegra_bpmp_mrq {
53 struct list_head list;
55 tegra_bpmp_mrq_handler_t handler;
60 const struct tegra_bpmp_soc *soc;
65 struct mbox_client client;
66 struct mbox_chan *channel;
69 spinlock_t atomic_tx_lock;
70 struct tegra_bpmp_channel *tx_channel, *rx_channel, *threaded_channels;
73 unsigned long *allocated;
76 struct semaphore lock;
79 struct list_head mrqs;
82 struct tegra_bpmp_clk **clocks;
83 unsigned int num_clocks;
85 struct reset_controller_dev rstc;
87 struct genpd_onecell_data genpd;
89 #ifdef CONFIG_DEBUG_FS
90 struct dentry *debugfs_mirror;
94 struct tegra_bpmp_message {
109 #if IS_ENABLED(CONFIG_TEGRA_BPMP)
110 struct tegra_bpmp *tegra_bpmp_get(struct device *dev);
111 void tegra_bpmp_put(struct tegra_bpmp *bpmp);
112 int tegra_bpmp_transfer_atomic(struct tegra_bpmp *bpmp,
113 struct tegra_bpmp_message *msg);
114 int tegra_bpmp_transfer(struct tegra_bpmp *bpmp,
115 struct tegra_bpmp_message *msg);
116 void tegra_bpmp_mrq_return(struct tegra_bpmp_channel *channel, int code,
117 const void *data, size_t size);
119 int tegra_bpmp_request_mrq(struct tegra_bpmp *bpmp, unsigned int mrq,
120 tegra_bpmp_mrq_handler_t handler, void *data);
121 void tegra_bpmp_free_mrq(struct tegra_bpmp *bpmp, unsigned int mrq,
123 bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp, unsigned int mrq);
125 static inline struct tegra_bpmp *tegra_bpmp_get(struct device *dev)
127 return ERR_PTR(-ENOTSUPP);
129 static inline void tegra_bpmp_put(struct tegra_bpmp *bpmp)
132 static inline int tegra_bpmp_transfer_atomic(struct tegra_bpmp *bpmp,
133 struct tegra_bpmp_message *msg)
137 static inline int tegra_bpmp_transfer(struct tegra_bpmp *bpmp,
138 struct tegra_bpmp_message *msg)
142 static inline void tegra_bpmp_mrq_return(struct tegra_bpmp_channel *channel,
143 int code, const void *data,
148 static inline int tegra_bpmp_request_mrq(struct tegra_bpmp *bpmp,
150 tegra_bpmp_mrq_handler_t handler,
155 static inline void tegra_bpmp_free_mrq(struct tegra_bpmp *bpmp,
156 unsigned int mrq, void *data)
160 static inline bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp,
167 void tegra_bpmp_handle_rx(struct tegra_bpmp *bpmp);
169 #if IS_ENABLED(CONFIG_CLK_TEGRA_BPMP)
170 int tegra_bpmp_init_clocks(struct tegra_bpmp *bpmp);
172 static inline int tegra_bpmp_init_clocks(struct tegra_bpmp *bpmp)
178 #if IS_ENABLED(CONFIG_RESET_TEGRA_BPMP)
179 int tegra_bpmp_init_resets(struct tegra_bpmp *bpmp);
181 static inline int tegra_bpmp_init_resets(struct tegra_bpmp *bpmp)
187 #if IS_ENABLED(CONFIG_SOC_TEGRA_POWERGATE_BPMP)
188 int tegra_bpmp_init_powergates(struct tegra_bpmp *bpmp);
190 static inline int tegra_bpmp_init_powergates(struct tegra_bpmp *bpmp)
196 #if IS_ENABLED(CONFIG_DEBUG_FS)
197 int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp);
199 static inline int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
206 #endif /* __SOC_TEGRA_BPMP_H */