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git://nv-tegra.nvidia.com/linux-nv-oot.git
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5358e6f54e
Use SPDX license GPL-V2.0 format. Bug 4078035 Change-Id: I5e64abc24987a811e0518809de54baaedea1badb Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2891212 Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2013-2023, NVIDIA Corporation. All rights reserved.
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*
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* Tegra Graphics Virtualization Communication Framework
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*/
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#ifndef __TEGRA_GR_COMM_H
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#define __TEGRA_GR_COMM_H
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#include <linux/platform_device.h>
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#define TEGRA_GR_COMM_ID_SELF (0xFF)
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#ifdef CONFIG_TEGRA_GR_VIRTUALIZATION
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int tegra_gr_comm_init(struct platform_device *pdev, u32 elems,
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const size_t *queue_sizes, u32 queue_start, u32 num_queues);
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void tegra_gr_comm_deinit(u32 queue_start, u32 num_queues);
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int tegra_gr_comm_send(u32 peer, u32 index, void *data,
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size_t size);
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int tegra_gr_comm_recv(u32 index, void **handle, void **data,
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size_t *size, u32 *sender);
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int tegra_gr_comm_sendrecv(u32 peer, u32 index, void **handle,
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void **data, size_t *size);
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void tegra_gr_comm_release(void *handle);
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u32 tegra_gr_comm_get_server_vmid(void);
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void *tegra_gr_comm_oob_get_ptr(u32 peer, u32 index,
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void **ptr, size_t *size);
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void tegra_gr_comm_oob_put_ptr(void *handle);
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#else
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static inline int tegra_gr_comm_init(struct platform_device *pdev,
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u32 elems,
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const size_t *queue_sizes, u32 queue_start,
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u32 num_queues)
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{
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return -ENOSYS;
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}
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static inline void tegra_gr_comm_deinit(u32 queue_start,
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u32 num_queues)
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{
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}
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static inline int tegra_gr_comm_send(u32 peer, u32 index,
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void *data, size_t size)
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{
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return -ENOSYS;
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}
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static inline int tegra_gr_comm_recv(u32 index, void **handle,
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void **data, size_t *size, u32 *sender)
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{
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return -ENOSYS;
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}
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static inline int tegra_gr_comm_sendrecv(u32 peer, u32 index,
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void **handle, void **data,
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size_t *size)
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{
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return -ENOSYS;
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}
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static inline void tegra_gr_comm_release(void *handle) {}
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static inline u32 tegra_gr_comm_get_server_vmid(void)
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{
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return 0;
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}
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static inline void *tegra_gr_comm_oob_get_ptr(u32 peer,
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u32 index, void **ptr, size_t *size)
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{
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return NULL;
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}
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static inline void tegra_gr_comm_oob_put_ptr(void *handle) {}
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#endif
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#endif
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