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/* SPDX-License-Identifier: GPL-2.0-only / / * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. / #ifndef __SOC_TEGRA_BPMP_H #define __SOC_TEGRA_BPMP_H #include <linux/mailbox_client.h> #include <linux/pm_domain.h> #include <linux/reset-controller.h> #include <linux/semaphore.h> #include <linux/types.h> #include <soc/tegra/bpmp-abi.h> struct tegra_bpmp_clk; struct tegra_bpmp_ops; struct tegra_bpmp_soc { struct { struct { unsigned int offset; unsigned int count; unsigned int timeout; } cpu_tx, thread, cpu_rx; } channels; const struct tegra_bpmp_ops ops; unsigned int num_resets; }; struct tegra_bpmp_mb_data { u32 code; u32 flags; u8 data[MSG_DATA_MIN_SZ]; } __packed; struct tegra_bpmp_channel { struct tegra_bpmp bpmp; struct tegra_bpmp_mb_data ib; struct tegra_bpmp_mb_data ob; struct completion completion; struct tegra_ivc ivc; unsigned int index; }; typedef void (tegra_bpmp_mrq_handler_t)(unsigned int mrq, struct tegra_bpmp_channel channel, void data); struct tegra_bpmp_mrq { struct list_head list; unsigned int mrq; tegra_bpmp_mrq_handler_t handler; void data; }; struct tegra_bpmp { const struct tegra_bpmp_soc soc; struct device dev; void priv; struct { struct mbox_client client; struct mbox_chan channel; } mbox; spinlock_t atomic_tx_lock; struct tegra_bpmp_channel tx_channel, rx_channel, threaded_channels; struct { unsigned long allocated; unsigned long busy; unsigned int count; struct semaphore lock; } threaded; struct list_head mrqs; spinlock_t lock; struct tegra_bpmp_clk clocks; unsigned int num_clocks; struct reset_controller_dev rstc; struct genpd_onecell_data genpd; #ifdef CONFIG_DEBUG_FS struct dentry debugfs_mirror; #endif }; struct tegra_bpmp_message { unsigned int mrq; struct { const void data; size_t size; } tx; struct { void data; size_t size; int ret; } rx; }; #if IS_ENABLED(CONFIG_TEGRA_BPMP) struct tegra_bpmp tegra_bpmp_get(struct device dev); void tegra_bpmp_put(struct tegra_bpmp bpmp); int tegra_bpmp_transfer_atomic(struct tegra_bpmp bpmp, struct tegra_bpmp_message msg); int tegra_bpmp_transfer(struct tegra_bpmp bpmp, struct tegra_bpmp_message msg); void tegra_bpmp_mrq_return(struct tegra_bpmp_channel channel, int code, const void data, size_t size); int tegra_bpmp_request_mrq(struct tegra_bpmp bpmp, unsigned int mrq, tegra_bpmp_mrq_handler_t handler, void data); void tegra_bpmp_free_mrq(struct tegra_bpmp bpmp, unsigned int mrq, void data); bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp bpmp, unsigned int mrq); #else static inline struct tegra_bpmp tegra_bpmp_get(struct device dev) { return ERR_PTR(-ENOTSUPP); } static inline void tegra_bpmp_put(struct tegra_bpmp bpmp) { } static inline int tegra_bpmp_transfer_atomic(struct tegra_bpmp bpmp, struct tegra_bpmp_message msg) { return -ENOTSUPP; } static inline int tegra_bpmp_transfer(struct tegra_bpmp bpmp, struct tegra_bpmp_message msg) { return -ENOTSUPP; } static inline void tegra_bpmp_mrq_return(struct tegra_bpmp_channel channel, int code, const void data, size_t size) { } static inline int tegra_bpmp_request_mrq(struct tegra_bpmp bpmp, unsigned int mrq, tegra_bpmp_mrq_handler_t handler, void data) { return -ENOTSUPP; } static inline void tegra_bpmp_free_mrq(struct tegra_bpmp bpmp, unsigned int mrq, void data) { } static inline bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp bpmp, unsigned int mrq) { return false; } #endif void tegra_bpmp_handle_rx(struct tegra_bpmp bpmp); #if IS_ENABLED(CONFIG_CLK_TEGRA_BPMP) int tegra_bpmp_init_clocks(struct tegra_bpmp bpmp); #else static inline int tegra_bpmp_init_clocks(struct tegra_bpmp bpmp) { return 0; } #endif #if IS_ENABLED(CONFIG_RESET_TEGRA_BPMP) int tegra_bpmp_init_resets(struct tegra_bpmp bpmp); #else static inline int tegra_bpmp_init_resets(struct tegra_bpmp bpmp) { return 0; } #endif #if IS_ENABLED(CONFIG_SOC_TEGRA_POWERGATE_BPMP) int tegra_bpmp_init_powergates(struct tegra_bpmp bpmp); #else static inline int tegra_bpmp_init_powergates(struct tegra_bpmp bpmp) { return 0; } #endif #if IS_ENABLED(CONFIG_DEBUG_FS) int tegra_bpmp_init_debugfs(struct tegra_bpmp bpmp); #else static inline int tegra_bpmp_init_debugfs(struct tegra_bpmp bpmp) { return 0; } #endif #endif / __SOC_TEGRA_BPMP_H */

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