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/*
* Tegra Graphics Virtualization Communication Framework
*
* Copyright (c) 2013-2018, NVIDIA Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __TEGRA_GR_COMM_H
#define __TEGRA_GR_COMM_H
#include <linux/platform_device.h>
#define TEGRA_GR_COMM_ID_SELF (0xFF)
#ifdef CONFIG_TEGRA_GR_VIRTUALIZATION
int tegra_gr_comm_init(struct platform_device *pdev, u32 elems,
const size_t *queue_sizes, u32 queue_start, u32 num_queues);
void tegra_gr_comm_deinit(u32 queue_start, u32 num_queues);
int tegra_gr_comm_send(u32 peer, u32 index, void *data,
size_t size);
int tegra_gr_comm_recv(u32 index, void **handle, void **data,
size_t *size, u32 *sender);
int tegra_gr_comm_sendrecv(u32 peer, u32 index, void **handle,
void **data, size_t *size);
void tegra_gr_comm_release(void *handle);
u32 tegra_gr_comm_get_server_vmid(void);
void *tegra_gr_comm_oob_get_ptr(u32 peer, u32 index,
void **ptr, size_t *size);
void tegra_gr_comm_oob_put_ptr(void *handle);
#else
static inline int tegra_gr_comm_init(struct platform_device *pdev,
u32 elems,
const size_t *queue_sizes, u32 queue_start,
u32 num_queues)
{
return -ENOSYS;
}
static inline void tegra_gr_comm_deinit(u32 queue_start,
u32 num_queues)
{
}
static inline int tegra_gr_comm_send(u32 peer, u32 index,
void *data, size_t size)
{
return -ENOSYS;
}
static inline int tegra_gr_comm_recv(u32 index, void **handle,
void **data, size_t *size, u32 *sender)
{
return -ENOSYS;
}
static inline int tegra_gr_comm_sendrecv(u32 peer, u32 index,
void **handle, void **data,
size_t *size)
{
return -ENOSYS;
}
static inline void tegra_gr_comm_release(void *handle) {}
static inline u32 tegra_gr_comm_get_server_vmid(void)
{
return 0;
}
static inline void *tegra_gr_comm_oob_get_ptr(u32 peer,
u32 index, void **ptr, size_t *size)
{
return NULL;
}
static inline void tegra_gr_comm_oob_put_ptr(void *handle) {}
#endif
#endif
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