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git://nv-tegra.nvidia.com/linux-nv-oot.git
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a2163680aa
- This patch includes AON-KMD module as part of OOT kernel. Bug 3583580 Change-Id: I531731136189d76ebb4d3f2880e8f46913f390f4 Signed-off-by: Akhilesh Khumbum <akhumbum@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2870990 Reviewed-by: Robert Collins <rcollins@nvidia.com> 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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