mirror of
git://nv-tegra.nvidia.com/linux-nv-oot.git
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fc171fe539
In Linux v6.11, the 'bus_type' structure match() callback was updated to make its 'drv' argument constant. Add a conftest test to detect this and update the relevant drivers according to fix building them for Linux v6.11. Bug 4749580 Change-Id: I895d97241a7357074bb34b8e7a5bdfa2e31d5ca5 Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3183068 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
144 lines
3.7 KiB
C
144 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* SPDX-FileCopyrightText: Copyright (c) 2020-2024 NVIDIA CORPORATION & AFFILIATES. All Rights Reserved. */
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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 <nvidia/conftest.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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#if defined(NV_BUS_TYPE_STRUCT_MATCH_HAS_CONST_DRV_ARG)
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static inline struct tegra_ivc_driver *to_tegra_ivc_driver(const struct device_driver *drv)
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#else
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static inline struct tegra_ivc_driver *to_tegra_ivc_driver(struct device_driver *drv)
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#endif
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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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