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;
107 struct tegra_bpmp_message {
122 #if IS_ENABLED(CONFIG_TEGRA_BPMP)
123 struct tegra_bpmp *tegra_bpmp_get(struct device *dev);
124 void tegra_bpmp_put(struct tegra_bpmp *bpmp);
125 int tegra_bpmp_transfer_atomic(struct tegra_bpmp *bpmp,
126 struct tegra_bpmp_message *msg);
127 int tegra_bpmp_transfer(struct tegra_bpmp *bpmp,
128 struct tegra_bpmp_message *msg);
129 void tegra_bpmp_mrq_return(struct tegra_bpmp_channel *channel, int code,
130 const void *data, size_t size);
132 int tegra_bpmp_request_mrq(struct tegra_bpmp *bpmp, unsigned int mrq,
133 tegra_bpmp_mrq_handler_t handler, void *data);
134 void tegra_bpmp_free_mrq(struct tegra_bpmp *bpmp, unsigned int mrq,
136 bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp, unsigned int mrq);
138 static inline struct tegra_bpmp *tegra_bpmp_get(struct device *dev)
140 return ERR_PTR(-ENOTSUPP);
142 static inline void tegra_bpmp_put(struct tegra_bpmp *bpmp)
145 static inline int tegra_bpmp_transfer_atomic(struct tegra_bpmp *bpmp,
146 struct tegra_bpmp_message *msg)
150 static inline int tegra_bpmp_transfer(struct tegra_bpmp *bpmp,
151 struct tegra_bpmp_message *msg)
155 static inline void tegra_bpmp_mrq_return(struct tegra_bpmp_channel *channel,
156 int code, const void *data,
161 static inline int tegra_bpmp_request_mrq(struct tegra_bpmp *bpmp,
163 tegra_bpmp_mrq_handler_t handler,
168 static inline void tegra_bpmp_free_mrq(struct tegra_bpmp *bpmp,
169 unsigned int mrq, void *data)
173 static inline bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp,
180 void tegra_bpmp_handle_rx(struct tegra_bpmp *bpmp);
182 #if IS_ENABLED(CONFIG_CLK_TEGRA_BPMP)
183 int tegra_bpmp_init_clocks(struct tegra_bpmp *bpmp);
185 static inline int tegra_bpmp_init_clocks(struct tegra_bpmp *bpmp)
191 #if IS_ENABLED(CONFIG_RESET_TEGRA_BPMP)
192 int tegra_bpmp_init_resets(struct tegra_bpmp *bpmp);
194 static inline int tegra_bpmp_init_resets(struct tegra_bpmp *bpmp)
200 #if IS_ENABLED(CONFIG_SOC_TEGRA_POWERGATE_BPMP)
201 int tegra_bpmp_init_powergates(struct tegra_bpmp *bpmp);
203 static inline int tegra_bpmp_init_powergates(struct tegra_bpmp *bpmp)
209 #if IS_ENABLED(CONFIG_DEBUG_FS)
210 int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp);
212 static inline int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
219 #endif /* __SOC_TEGRA_BPMP_H */