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/iosys-map.h>
10 #include <linux/mailbox_client.h>
11 #include <linux/pm_domain.h>
12 #include <linux/reset-controller.h>
13 #include <linux/semaphore.h>
14 #include <linux/types.h>
16 #include <soc/tegra/bpmp-abi.h>
18 struct tegra_bpmp_clk;
19 struct tegra_bpmp_ops;
21 struct tegra_bpmp_soc {
27 } cpu_tx, thread, cpu_rx;
30 const struct tegra_bpmp_ops *ops;
31 unsigned int num_resets;
34 struct tegra_bpmp_mb_data {
37 u8 data[MSG_DATA_MIN_SZ];
40 #define tegra_bpmp_mb_read(dst, mb, size) \
41 iosys_map_memcpy_from(dst, mb, offsetof(struct tegra_bpmp_mb_data, data), size)
43 #define tegra_bpmp_mb_write(mb, src, size) \
44 iosys_map_memcpy_to(mb, offsetof(struct tegra_bpmp_mb_data, data), src, size)
46 #define tegra_bpmp_mb_read_field(mb, field) \
47 iosys_map_rd_field(mb, 0, struct tegra_bpmp_mb_data, field)
49 #define tegra_bpmp_mb_write_field(mb, field, value) \
50 iosys_map_wr_field(mb, 0, struct tegra_bpmp_mb_data, field, value)
52 struct tegra_bpmp_channel {
53 struct tegra_bpmp *bpmp;
56 struct completion completion;
57 struct tegra_ivc *ivc;
61 typedef void (*tegra_bpmp_mrq_handler_t)(unsigned int mrq,
62 struct tegra_bpmp_channel *channel,
65 struct tegra_bpmp_mrq {
66 struct list_head list;
68 tegra_bpmp_mrq_handler_t handler;
73 const struct tegra_bpmp_soc *soc;
78 struct mbox_client client;
79 struct mbox_chan *channel;
82 spinlock_t atomic_tx_lock;
83 struct tegra_bpmp_channel *tx_channel, *rx_channel, *threaded_channels;
86 unsigned long *allocated;
89 struct semaphore lock;
92 struct list_head mrqs;
95 struct tegra_bpmp_clk **clocks;
96 unsigned int num_clocks;
98 struct reset_controller_dev rstc;
100 struct genpd_onecell_data genpd;
102 #ifdef CONFIG_DEBUG_FS
103 struct dentry *debugfs_mirror;
109 #define TEGRA_BPMP_MESSAGE_RESET BIT(0)
111 struct tegra_bpmp_message {
128 #if IS_ENABLED(CONFIG_TEGRA_BPMP)
129 struct tegra_bpmp *tegra_bpmp_get(struct device *dev);
130 void tegra_bpmp_put(struct tegra_bpmp *bpmp);
131 int tegra_bpmp_transfer_atomic(struct tegra_bpmp *bpmp,
132 struct tegra_bpmp_message *msg);
133 int tegra_bpmp_transfer(struct tegra_bpmp *bpmp,
134 struct tegra_bpmp_message *msg);
135 void tegra_bpmp_mrq_return(struct tegra_bpmp_channel *channel, int code,
136 const void *data, size_t size);
138 int tegra_bpmp_request_mrq(struct tegra_bpmp *bpmp, unsigned int mrq,
139 tegra_bpmp_mrq_handler_t handler, void *data);
140 void tegra_bpmp_free_mrq(struct tegra_bpmp *bpmp, unsigned int mrq,
142 bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp, unsigned int mrq);
144 static inline struct tegra_bpmp *tegra_bpmp_get(struct device *dev)
146 return ERR_PTR(-ENOTSUPP);
148 static inline void tegra_bpmp_put(struct tegra_bpmp *bpmp)
151 static inline int tegra_bpmp_transfer_atomic(struct tegra_bpmp *bpmp,
152 struct tegra_bpmp_message *msg)
156 static inline int tegra_bpmp_transfer(struct tegra_bpmp *bpmp,
157 struct tegra_bpmp_message *msg)
161 static inline void tegra_bpmp_mrq_return(struct tegra_bpmp_channel *channel,
162 int code, const void *data,
167 static inline int tegra_bpmp_request_mrq(struct tegra_bpmp *bpmp,
169 tegra_bpmp_mrq_handler_t handler,
174 static inline void tegra_bpmp_free_mrq(struct tegra_bpmp *bpmp,
175 unsigned int mrq, void *data)
179 static inline bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp,
186 void tegra_bpmp_handle_rx(struct tegra_bpmp *bpmp);
188 #if IS_ENABLED(CONFIG_CLK_TEGRA_BPMP)
189 int tegra_bpmp_init_clocks(struct tegra_bpmp *bpmp);
191 static inline int tegra_bpmp_init_clocks(struct tegra_bpmp *bpmp)
197 #if IS_ENABLED(CONFIG_RESET_TEGRA_BPMP)
198 int tegra_bpmp_init_resets(struct tegra_bpmp *bpmp);
200 static inline int tegra_bpmp_init_resets(struct tegra_bpmp *bpmp)
206 #if IS_ENABLED(CONFIG_SOC_TEGRA_POWERGATE_BPMP)
207 int tegra_bpmp_init_powergates(struct tegra_bpmp *bpmp);
209 static inline int tegra_bpmp_init_powergates(struct tegra_bpmp *bpmp)
215 #if IS_ENABLED(CONFIG_DEBUG_FS)
216 int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp);
218 static inline int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
225 #endif /* __SOC_TEGRA_BPMP_H */