mirror of
git://nv-tegra.nvidia.com/linux-nv-oot.git
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4a9d0efd2c
The legacy tegra IVC driver is used only in AON driver. Rest of client are already moved to the IVC drier from core kernel. Move the driver to AON folder and limit the usage of driver to AON driver only. Bug 4430467 Change-Id: Id0e9aeaf3415d33812556b82bfb0adc4941b2f41 Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3039674 GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2014-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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*/
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#ifndef __TEGRA_IVC_INSTANCE_H__
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#define __TEGRA_IVC_INSTANCE_H__
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#include <linux/dma-mapping.h>
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#include <linux/device.h>
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#define IVC_ALIGN 64
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struct ivc_channel_header;
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struct ivc {
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struct ivc_channel_header *rx_channel, *tx_channel;
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uint32_t w_pos, r_pos;
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void (*notify)(struct ivc *);
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uint32_t nframes, frame_size;
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struct device *peer_device;
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dma_addr_t rx_handle, tx_handle;
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};
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/* FIXME: overrides to avoid conflict with upstreamed ivc APIs. */
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#define tegra_ivc_init nv_tegra_ivc_init
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#define tegra_ivc_init_with_dma_handle nv_tegra_ivc_init_with_dma_handle
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#define tegra_ivc_total_queue_size nv_tegra_ivc_total_queue_size
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#define tegra_ivc_write_user nv_tegra_ivc_write_user
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#define tegra_ivc_read_user nv_tegra_ivc_read_user
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#define tegra_ivc_align nv_tegra_ivc_align
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#define tegra_ivc_channel_sync nv_tegra_ivc_channel_sync
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int tegra_ivc_init(struct ivc *ivc, uintptr_t rx_base, uintptr_t tx_base,
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unsigned nframes, unsigned frame_size,
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struct device *peer_device, void (*notify)(struct ivc *));
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int tegra_ivc_init_with_dma_handle(struct ivc *ivc, uintptr_t rx_base,
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dma_addr_t rx_handle, uintptr_t tx_base, dma_addr_t tx_handle,
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unsigned nframes, unsigned frame_size,
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struct device *peer_device, void (*notify)(struct ivc *));
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unsigned tegra_ivc_total_queue_size(unsigned queue_size);
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int tegra_ivc_write_user(struct ivc *ivc, const void __user *user_buf,
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size_t size);
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int tegra_ivc_read_user(struct ivc *ivc, void __user *buf, size_t max_read);
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size_t tegra_ivc_align(size_t size);
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int tegra_ivc_channel_sync(struct ivc *ivc);
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#endif /* __TEGRA_IVC_INSTANCE_H__ */
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