[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/Documentation/gpu/index.rst b/src/kernel/linux/v4.19/Documentation/gpu/index.rst
new file mode 100644
index 0000000..1fcf8e8
--- /dev/null
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+==================================
+Linux GPU Driver Developer's Guide
+==================================
+
+.. toctree::
+
+   introduction
+   drm-internals
+   drm-mm
+   drm-kms
+   drm-kms-helpers
+   drm-uapi
+   drm-client
+   drivers
+   vga-switcheroo
+   vgaarbiter
+   todo
+
+.. only::  subproject and html
+
+   Indices
+   =======
+
+   * :ref:`genindex`