Files
linux-nvgpu/drivers/gpu/nvgpu/common/vgpu/ivc/comm_vgpu.c
Aparna Das 012f46ef74 gpu: nvgpu: vgpu: create common ivc unit
Move ivc comm related functions to ivc/comm_vgpu.c.
These functions call os specific ivc counterparts.

Jira GVSCI-334

Change-Id: I886dddb71c43975cb83a3508005ab1136b7adadc
Signed-off-by: Aparna Das <aparnad@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2082183
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2019-04-04 13:26:23 -07:00

64 lines
2.0 KiB
C

/*
* Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <nvgpu/types.h>
#include <nvgpu/bug.h>
#include <nvgpu/string.h>
#include <nvgpu/vgpu/vgpu_ivc.h>
#include <nvgpu/vgpu/tegra_vgpu.h>
#include "comm_vgpu.h"
int vgpu_comm_init(struct gk20a *g)
{
size_t queue_sizes[] = { TEGRA_VGPU_QUEUE_SIZES };
return vgpu_ivc_init(g, 3, queue_sizes, TEGRA_VGPU_QUEUE_CMD,
ARRAY_SIZE(queue_sizes));
}
void vgpu_comm_deinit(void)
{
size_t queue_sizes[] = { TEGRA_VGPU_QUEUE_SIZES };
vgpu_ivc_deinit(TEGRA_VGPU_QUEUE_CMD, ARRAY_SIZE(queue_sizes));
}
int vgpu_comm_sendrecv(struct tegra_vgpu_cmd_msg *msg, size_t size_in,
size_t size_out)
{
void *handle;
size_t size = size_in;
void *data = msg;
int err;
err = vgpu_ivc_sendrecv(vgpu_ivc_get_server_vmid(),
TEGRA_VGPU_QUEUE_CMD, &handle, &data, &size);
if (err == 0) {
WARN_ON(size < size_out);
nvgpu_memcpy((u8 *)msg, (u8 *)data, size_out);
vgpu_ivc_release(handle);
}
return err;
}