91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
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/*
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* Tegra Graphics Virtualization Communication Framework
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*
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* Copyright (c) 2013-2018, NVIDIA Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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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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