Include nvgpu headers

These are needed to build on NVIDIA's Jetson boards for the time
being. Only a couple structs are required, so it should be fairly
easy to remove this dependency at some point in the future.

1 files changed, 103 insertions, 0 deletions

diff --git a/include/os/linux/vgpu/gv11b/platform_gv11b_vgpu_tegra.c b/include/os/linux/vgpu/gv11b/platform_gv11b_vgpu_tegra.c
new file mode 100644
index 0000000..0304bcc
--- /dev/null
+++ b/include/os/linux/vgpu/gv11b/platform_gv11b_vgpu_tegra.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2017-2018, 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 <linux/platform_device.h>
+
+#include <nvgpu/nvhost.h>
+#include <nvgpu/gk20a.h>
+
+#include "vgpu/clk_vgpu.h"
+#include "os/linux/platform_gk20a.h"
+#include "os/linux/os_linux.h"
+#include "os/linux/vgpu/vgpu_linux.h"
+#include "os/linux/vgpu/platform_vgpu_tegra.h"
+
+static int gv11b_vgpu_probe(struct device *dev)
+{
+        struct platform_device *pdev = to_platform_device(dev);
+        struct gk20a_platform *platform = dev_get_drvdata(dev);
+        struct resource *r;
+        void __iomem *regs;
+        struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(platform->g);
+        struct gk20a *g = platform->g;
+        int ret;
+
+        r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "usermode");
+        if (!r) {
+                nvgpu_err(g, "failed to get usermode regs");
+                return -ENXIO;
+        }
+        regs = devm_ioremap_resource(dev, r);
+        if (IS_ERR(regs)) {
+                nvgpu_err(g, "failed to map usermode regs");
+                return PTR_ERR(regs);
+        }
+        l->usermode_regs = regs;
+
+#ifdef CONFIG_TEGRA_GK20A_NVHOST
+        ret = nvgpu_get_nvhost_dev(g);
+        if (ret) {
+                l->usermode_regs = NULL;
+                return ret;
+        }
+
+        ret = nvgpu_nvhost_syncpt_unit_interface_get_aperture(g->nvhost_dev,
+                                                        &g->syncpt_unit_base,
+                                                        &g->syncpt_unit_size);
+        if (ret) {
+                nvgpu_err(g, "Failed to get syncpt interface");
+                return -ENOSYS;
+        }
+        g->syncpt_size = nvgpu_nvhost_syncpt_unit_interface_get_byte_offset(1);
+        nvgpu_info(g, "syncpt_unit_base %llx syncpt_unit_size %zx size %x\n",
+                g->syncpt_unit_base, g->syncpt_unit_size, g->syncpt_size);
+#endif
+        vgpu_init_clk_support(platform->g);
+
+        return 0;
+}
+
+struct gk20a_platform gv11b_vgpu_tegra_platform = {
+        .has_syncpoints = true,
+
+        /* 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 = gv11b_vgpu_probe,
+
+        .clk_round_rate = vgpu_plat_clk_round_rate,
+        .get_clk_freqs = vgpu_plat_clk_get_freqs,
+
+        /* frequency scaling configuration */
+        .devfreq_governor = "userspace",
+
+        .virtual_dev = true,
+
+        /* power management callbacks */
+        .suspend = vgpu_tegra_suspend,
+        .resume = vgpu_tegra_resume,
+};