/*
 * Virtualized GPU Channel RAMFC
 *
 * Copyright (c) 2014-2019, 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/vgpu/vgpu.h>
#include <nvgpu/gk20a.h>
#include <nvgpu/channel.h>

#include "ramfc_vgpu.h"
#include "common/vgpu/ivc/comm_vgpu.h"

int vgpu_ramfc_setup(struct nvgpu_channel *ch, u64 gpfifo_base,
		u32 gpfifo_entries, u64 pbdma_acquire_timeout, u32 flags)
{
	struct tegra_vgpu_cmd_msg msg;
	struct tegra_vgpu_ramfc_params *p = &msg.params.ramfc;
	int err;
	struct gk20a *g = ch->g;

	nvgpu_log_fn(g, " ");

	msg.cmd = TEGRA_VGPU_CMD_CHANNEL_SETUP_RAMFC;
	msg.handle = vgpu_get_handle(ch->g);
	p->handle = ch->virt_ctx;
	p->gpfifo_va = gpfifo_base;
	p->num_entries = gpfifo_entries;
	p->userd_addr = ch->userd_iova;
	p->iova = 0;
	err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));

	return (err || msg.ret) ? -ENOMEM : 0;
}
