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git://nv-tegra.nvidia.com/linux-nv-oot.git
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dd109353df
This patch modifies rtcpu modules to use new ivc headers, resolves cyclic dependencies between the modules, reduces the amount of modules built by linking them together and fixes other minor issues encountered with K5.15 Change-Id: I9cf2672df08ffe6c4b8aea9ac21d6cc50a92bb4e Signed-off-by: Matti Ryttylainen <mryttylainen@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2787121 Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Ankur Pawar <ankurp@nvidia.com> Reviewed-by: Semi Malinen <smalinen@nvidia.com> Reviewed-by: Pekka Pessi <ppessi@nvidia.com> Reviewed-by: Frank Chen <frankc@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
141 lines
3.5 KiB
C
141 lines
3.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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*/
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#ifndef _LINUX_TEGRA_IVC_BUS_H
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#define _LINUX_TEGRA_IVC_BUS_H
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#include <soc/tegra/ivc-priv.h>
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#include <linux/types.h>
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#include <linux/tegra-hsp-combo.h>
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extern struct bus_type tegra_ivc_bus_type;
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extern struct device_type tegra_ivc_bus_dev_type;
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struct tegra_ivc_bus;
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struct tegra_ivc_rpc_data;
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struct tegra_ivc_bus *tegra_ivc_bus_create(struct device *dev,
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struct camrtc_hsp *camhsp);
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void tegra_ivc_bus_ready(struct tegra_ivc_bus *bus, bool online);
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void tegra_ivc_bus_destroy(struct tegra_ivc_bus *bus);
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int tegra_ivc_bus_boot_sync(struct tegra_ivc_bus *bus,
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int (*iovm_setup)(struct device*, dma_addr_t));
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void tegra_ivc_bus_notify(struct tegra_ivc_bus *bus, u16 group);
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struct tegra_ivc_driver {
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struct device_driver driver;
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struct device_type *dev_type;
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union {
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const struct tegra_ivc_channel_ops *channel;
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} ops;
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};
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static inline struct tegra_ivc_driver *to_tegra_ivc_driver(
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struct device_driver *drv)
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{
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if (drv == NULL)
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return NULL;
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return container_of(drv, struct tegra_ivc_driver, driver);
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}
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int tegra_ivc_driver_register(struct tegra_ivc_driver *drv);
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void tegra_ivc_driver_unregister(struct tegra_ivc_driver *drv);
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#define tegra_ivc_module_driver(drv) \
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module_driver(drv, tegra_ivc_driver_register, \
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tegra_ivc_driver_unregister)
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#define tegra_ivc_subsys_driver(__driver, __register, __unregister, ...) \
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static int __init __driver##_init(void) \
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{ \
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return __register(&(__driver), ##__VA_ARGS__); \
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} \
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subsys_initcall_sync(__driver##_init);
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#define tegra_ivc_subsys_driver_default(__driver) \
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tegra_ivc_subsys_driver(__driver, \
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tegra_ivc_driver_register, \
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tegra_ivc_driver_unregister)
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/* IVC channel driver support */
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extern struct device_type tegra_ivc_channel_type;
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struct tegra_ivc_channel {
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struct tegra_ivc ivc;
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struct device dev;
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const struct tegra_ivc_channel_ops __rcu *ops;
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struct tegra_ivc_channel *next;
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struct mutex ivc_wr_lock;
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struct tegra_ivc_rpc_data *rpc_priv;
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atomic_t bus_resets;
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u16 group;
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bool is_ready;
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};
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static inline bool tegra_ivc_channel_online_check(
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struct tegra_ivc_channel *chan)
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{
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atomic_set(&chan->bus_resets, 0);
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smp_wmb();
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smp_rmb();
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return chan->is_ready;
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}
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static inline bool tegra_ivc_channel_has_been_reset(
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struct tegra_ivc_channel *chan)
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{
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smp_rmb();
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return atomic_read(&chan->bus_resets) != 0;
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}
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static inline void *tegra_ivc_channel_get_drvdata(
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struct tegra_ivc_channel *chan)
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{
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return dev_get_drvdata(&chan->dev);
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}
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static inline void tegra_ivc_channel_set_drvdata(
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struct tegra_ivc_channel *chan, void *data)
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{
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dev_set_drvdata(&chan->dev, data);
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}
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static inline struct tegra_ivc_channel *to_tegra_ivc_channel(
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struct device *dev)
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{
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return container_of(dev, struct tegra_ivc_channel, dev);
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}
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static inline struct device *tegra_ivc_channel_to_camrtc_dev(
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struct tegra_ivc_channel *ch)
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{
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if (unlikely(ch == NULL))
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return NULL;
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BUG_ON(ch->dev.parent == NULL);
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BUG_ON(ch->dev.parent->parent == NULL);
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return ch->dev.parent->parent;
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}
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int tegra_ivc_channel_runtime_get(struct tegra_ivc_channel *chan);
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void tegra_ivc_channel_runtime_put(struct tegra_ivc_channel *chan);
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struct tegra_ivc_channel_ops {
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int (*probe)(struct tegra_ivc_channel *);
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void (*ready)(struct tegra_ivc_channel *, bool online);
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void (*remove)(struct tegra_ivc_channel *);
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void (*notify)(struct tegra_ivc_channel *);
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};
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/* Legacy mailbox support */
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struct tegra_ivc_mbox_msg {
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int length;
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void *data;
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};
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#endif
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