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/*
* Tegra Virtualized GPU Platform Interface
*
* Copyright (c) 2014-2017, 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 "gk20a.h"
#include "platform_gk20a.h"
#include "vgpu/clk_vgpu.h"
#include <nvgpu/nvhost.h>
static int gk20a_tegra_probe(struct device *dev)
{
#ifdef CONFIG_TEGRA_GK20A_NVHOST
struct gk20a_platform *platform = dev_get_drvdata(dev);
int ret;
ret = nvgpu_get_nvhost_dev(platform->g);
if (ret)
return ret;
vgpu_init_clk_support(platform->g);
return 0;
#else
return 0;
#endif
}
struct gk20a_platform vgpu_tegra_platform = {
.has_syncpoints = true,
.aggressive_sync_destroy_thresh = 64,
/* power management configuration */
.can_railgate_init = false,
.can_elpg_init = false,
.enable_slcg = false,
.enable_blcg = false,
.enable_elcg = false,
.enable_elpg = false,
.enable_aelpg = false,
.ch_wdt_timeout_ms = 5000,
.probe = gk20a_tegra_probe,
.clk_round_rate = vgpu_clk_round_rate,
.get_clk_freqs = vgpu_clk_get_freqs,
/* frequency scaling configuration */
.devfreq_governor = "userspace",
.virtual_dev = true,
};
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