gpu: nvgpu: vgpu: add t210 gm20b support

- add hal initializaiton
- create folders vgpu/gk20a and vgpu/gm20b for specific code

Bug 1653185

Change-Id: If94d45e22a1d73d2e4916673736cc29751be4e40
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: http://git-master/r/774148
GVS: Gerrit_Virtual_Submit
Reviewed-by: Aingara Paramakuru <aparamakuru@nvidia.com>
Reviewed-by: Ken Adams <kadams@nvidia.com>

3 files changed, 100 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/gk20a/vgpu_gr_gk20a.c b/drivers/gpu/nvgpu/vgpu/gk20a/vgpu_gr_gk20a.c
new file mode 100644
index 00000000..8d32773e
--- /dev/null
+++ b/drivers/gpu/nvgpu/vgpu/gk20a/vgpu_gr_gk20a.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2015, 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/kernel.h>
+
+#include "gk20a/hw_gr_gk20a.h"
+#include "gk20a/gk20a.h"
+#include "vgpu/vgpu.h"
+
+static void vgpu_gk20a_detect_sm_arch(struct gk20a *g)
+{
+        struct gk20a_platform *platform = gk20a_get_platform(g->dev);
+        u32 v = 0, raw_version, version = 0;
+
+        gk20a_dbg_fn("");
+
+        if (vgpu_get_attribute(platform->virt_handle,
+                        TEGRA_VGPU_ATTRIB_GPC0_TPC0_SM_ARCH, &v))
+                gk20a_err(dev_from_gk20a(g), "failed to retrieve SM arch");
+
+        raw_version = gr_gpc0_tpc0_sm_arch_spa_version_v(v);
+
+        if (raw_version == gr_gpc0_tpc0_sm_arch_spa_version_smkepler_lp_v())
+                version = 0x320; /* SM 3.2 */
+        else
+                gk20a_err(dev_from_gk20a(g), "Unknown SM version 0x%x",
+                          raw_version);
+
+        /* on Kepler, SM version == SPA version */
+        g->gpu_characteristics.sm_arch_spa_version = version;
+        g->gpu_characteristics.sm_arch_sm_version = version;
+
+        g->gpu_characteristics.sm_arch_warp_count =
+                gr_gpc0_tpc0_sm_arch_warp_count_v(v);
+}
+
+void vgpu_gk20a_init_gr_ops(struct gpu_ops *gops)
+{
+        gops->gr.detect_sm_arch = vgpu_gk20a_detect_sm_arch;
+}
diff --git a/drivers/gpu/nvgpu/vgpu/gk20a/vgpu_gr_gk20a.h b/drivers/gpu/nvgpu/vgpu/gk20a/vgpu_gr_gk20a.h
new file mode 100644
index 00000000..bb80aff8
--- /dev/null
+++ b/drivers/gpu/nvgpu/vgpu/gk20a/vgpu_gr_gk20a.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+#ifndef __VGPU_GR_GK20A_H__
+#define __VGPU_GR_GK20A_H__
+
+#include "gk20a/gk20a.h"
+
+void vgpu_gk20a_init_gr_ops(struct gpu_ops *gops);
+
+#endif
diff --git a/drivers/gpu/nvgpu/vgpu/gk20a/vgpu_hal_gk20a.c b/drivers/gpu/nvgpu/vgpu/gk20a/vgpu_hal_gk20a.c
new file mode 100644
index 00000000..aeeb2ad9
--- /dev/null
+++ b/drivers/gpu/nvgpu/vgpu/gk20a/vgpu_hal_gk20a.c
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2015, 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 "gk20a/hal_gk20a.h"
+#include "vgpu/vgpu.h"
+#include "vgpu_gr_gk20a.h"
+
+int vgpu_gk20a_init_hal(struct gk20a *g)
+{
+        int err;
+
+        err = gk20a_init_hal(g);
+        if (err)
+                return err;
+        vgpu_init_hal_common(g);
+        vgpu_gk20a_init_gr_ops(&g->ops);
+
+        return 0;
+}