gpu: nvgpu: move vgpu code to linux

Most of VGPU code is linux specific but lies in common code
So until VGPU code is properly abstracted and made os-independent,
move all of VGPU code to linux specific directory

Handle corresponding Makefile changes
Update all #includes to reflect new paths
Add GPL license to newly added linux files

Jira NVGPU-387

Change-Id: Ic133e4c80e570bcc273f0dacf45283fefd678923
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1599472
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 69 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/vgpu/platform_vgpu_tegra.c b/drivers/gpu/nvgpu/common/linux/vgpu/platform_vgpu_tegra.c
new file mode 100644
index 00000000..830b04ac
--- /dev/null
+++ b/drivers/gpu/nvgpu/common/linux/vgpu/platform_vgpu_tegra.c
@@ -0,0 +1,69 @@
+/*
+ * Tegra Virtualized GPU Platform Interface
+ *
+ * Copyright (c) 2014-2017, 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/>.
+ */
+
+#include "gk20a/gk20a.h"
+#include "common/linux/platform_gk20a.h"
+#include "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,
+        .can_slcg               = false,
+        .can_blcg               = false,
+        .can_elcg               = 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,
+};