diff options
Diffstat (limited to 'include/soc/tegra/bpmp.h')
| -rw-r--r-- | include/soc/tegra/bpmp.h | 114 |
1 files changed, 93 insertions, 21 deletions
diff --git a/include/soc/tegra/bpmp.h b/include/soc/tegra/bpmp.h index 9ba65222bd3f..f5e4ac5b8cce 100644 --- a/include/soc/tegra/bpmp.h +++ b/include/soc/tegra/bpmp.h @@ -1,19 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef __SOC_TEGRA_BPMP_H #define __SOC_TEGRA_BPMP_H +#include <linux/iosys-map.h> #include <linux/mailbox_client.h> #include <linux/pm_domain.h> #include <linux/reset-controller.h> @@ -23,6 +16,7 @@ #include <soc/tegra/bpmp-abi.h> struct tegra_bpmp_clk; +struct tegra_bpmp_ops; struct tegra_bpmp_soc { struct { @@ -32,6 +26,8 @@ struct tegra_bpmp_soc { unsigned int timeout; } cpu_tx, thread, cpu_rx; } channels; + + const struct tegra_bpmp_ops *ops; unsigned int num_resets; }; @@ -41,12 +37,25 @@ struct tegra_bpmp_mb_data { u8 data[MSG_DATA_MIN_SZ]; } __packed; +#define tegra_bpmp_mb_read(dst, mb, size) \ + iosys_map_memcpy_from(dst, mb, offsetof(struct tegra_bpmp_mb_data, data), size) + +#define tegra_bpmp_mb_write(mb, src, size) \ + iosys_map_memcpy_to(mb, offsetof(struct tegra_bpmp_mb_data, data), src, size) + +#define tegra_bpmp_mb_read_field(mb, field) \ + iosys_map_rd_field(mb, 0, struct tegra_bpmp_mb_data, field) + +#define tegra_bpmp_mb_write_field(mb, field, value) \ + iosys_map_wr_field(mb, 0, struct tegra_bpmp_mb_data, field, value) + struct tegra_bpmp_channel { struct tegra_bpmp *bpmp; - struct tegra_bpmp_mb_data *ib; - struct tegra_bpmp_mb_data *ob; + struct iosys_map ib; + struct iosys_map ob; struct completion completion; struct tegra_ivc *ivc; + unsigned int index; }; typedef void (*tegra_bpmp_mrq_handler_t)(unsigned int mrq, @@ -63,20 +72,15 @@ struct tegra_bpmp_mrq { struct tegra_bpmp { const struct tegra_bpmp_soc *soc; struct device *dev; - - struct { - struct gen_pool *pool; - dma_addr_t phys; - void *virt; - } tx, rx; + void *priv; struct { struct mbox_client client; struct mbox_chan *channel; } mbox; - struct tegra_bpmp_channel *channels; - unsigned int num_channels; + spinlock_t atomic_tx_lock; + struct tegra_bpmp_channel *tx_channel, *rx_channel, *threaded_channels; struct { unsigned long *allocated; @@ -94,10 +98,15 @@ struct tegra_bpmp { struct reset_controller_dev rstc; struct genpd_onecell_data genpd; + +#ifdef CONFIG_DEBUG_FS + struct dentry *debugfs_mirror; +#endif + + bool suspended; }; -struct tegra_bpmp *tegra_bpmp_get(struct device *dev); -void tegra_bpmp_put(struct tegra_bpmp *bpmp); +#define TEGRA_BPMP_MESSAGE_RESET BIT(0) struct tegra_bpmp_message { unsigned int mrq; @@ -110,18 +119,71 @@ struct tegra_bpmp_message { struct { void *data; size_t size; + int ret; } rx; + + unsigned long flags; }; +#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); @@ -150,4 +212,14 @@ static inline int tegra_bpmp_init_powergates(struct tegra_bpmp *bpmp) } #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 */ |