gpu: nvgpu: Add own platform data to enable host1x

Add gp10b platform data to enable sync point support.

Bug 1572701

Change-Id: Iaf03ecb8fb6b8bf4bb824e2a012c80dfe3f4fcae
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/592099
Reviewed-by: Automatic_Commit_Validation_User

2 files changed, 101 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gp10b/Makefile b/drivers/gpu/nvgpu/gp10b/Makefile
index 722cc550..193efee0 100644
--- a/drivers/gpu/nvgpu/gp10b/Makefile
+++ b/drivers/gpu/nvgpu/gp10b/Makefile
@@ -12,3 +12,5 @@ obj-$(CONFIG_GK20A)  += \
         gr_gp10b.o  \
         mc_gp10b.o  \
         hal_gp10b.o
+
+obj-$(CONFIG_TEGRA_GK20A) += platform_gp10b_tegra.o
diff --git a/drivers/gpu/nvgpu/gp10b/platform_gp10b_tegra.c b/drivers/gpu/nvgpu/gp10b/platform_gp10b_tegra.c
new file mode 100644
index 00000000..7a25a3fc
--- /dev/null
+++ b/drivers/gpu/nvgpu/gp10b/platform_gp10b_tegra.c
@@ -0,0 +1,99 @@
+/*
+ * drivers/video/tegra/host/gk20a/platform_gk20a_tegra.c
+ *
+ * GK20A Tegra Platform Interface
+ *
+ * Copyright (c) 2014, 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.
+ */
+
+#include <linux/of_platform.h>
+#include <linux/nvhost.h>
+#include <linux/debugfs.h>
+#include <linux/tegra-powergate.h>
+#include <linux/platform_data/tegra_edp.h>
+#include <uapi/linux/nvgpu.h>
+#include <linux/dma-buf.h>
+#include <linux/nvmap.h>
+#include <linux/tegra_pm_domains.h>
+#include "gk20a/platform_gk20a.h"
+#include "gk20a/gk20a.h"
+
+static int gp10b_tegra_probe(struct platform_device *pdev)
+{
+        struct gk20a_platform *platform = gk20a_get_platform(pdev);
+        struct device_node *np = pdev->dev.of_node;
+        struct device_node *host1x_node;
+        struct platform_device *host1x_pdev;
+        const __be32 *host1x_ptr;
+
+        host1x_ptr = of_get_property(np, "nvidia,host1x", NULL);
+        if (!host1x_ptr) {
+                gk20a_err(&pdev->dev, "host1x device not available");
+                return -ENOSYS;
+        }
+
+        host1x_node = of_find_node_by_phandle(be32_to_cpup(host1x_ptr));
+        host1x_pdev = of_find_device_by_node(host1x_node);
+        if (!host1x_pdev) {
+                gk20a_err(&pdev->dev, "host1x device not available");
+                return -ENOSYS;
+        }
+
+        platform->g->host1x_dev = host1x_pdev;
+
+        return 0;
+}
+
+static int gp10b_tegra_late_probe(struct platform_device *pdev)
+{
+        return 0;
+}
+
+static bool gp10b_tegra_is_railgated(struct platform_device *pdev)
+{
+        return false;
+}
+
+static int gp10b_tegra_railgate(struct platform_device *pdev)
+{
+        return 0;
+}
+
+static int gp10b_tegra_unrailgate(struct platform_device *pdev)
+{
+        return 0;
+}
+
+static int gp10b_tegra_suspend(struct device *dev)
+{
+        return 0;
+}
+
+struct gk20a_platform t18x_gpu_tegra_platform = {
+        .has_syncpoints = true,
+
+        .default_big_page_size  = SZ_128K,
+
+        .probe = gp10b_tegra_probe,
+        .late_probe = gp10b_tegra_late_probe,
+
+        /* power management callbacks */
+        .suspend = gp10b_tegra_suspend,
+        .railgate = gp10b_tegra_railgate,
+        .unrailgate = gp10b_tegra_unrailgate,
+        .is_railgated = gp10b_tegra_is_railgated,
+
+        .busy = gk20a_tegra_busy,
+        .idle = gk20a_tegra_idle,
+
+        .dump_platform_dependencies = gk20a_tegra_debug_dump,
+};