winsys/drm: Add swrast.
The swrast winsys always returns NULL when drm_api_create is called.
diff --git a/docs/egl.html b/docs/egl.html
index 5561d1a..efc7b1e 100644
--- a/docs/egl.html
+++ b/docs/egl.html
@@ -82,6 +82,15 @@
tracker.</p>
</li>
+
+<li><code>--enable-gallium-swrast</code>
+
+<p>This option is not specific to EGL. But if there is no driver for your
+hardware, or you are experiencing problems with the hardware driver, you can
+enable the swrast DRM driver. It is a dummy driver and EGL will fallback to
+software rendering automatically.</p>
+
+</li>
</ul>
<h3>OpenGL</h3>
@@ -159,6 +168,7 @@
<li><code>egl_<dpy>_i965</code></li>
<li><code>egl_<dpy>_radeon</code></li>
<li><code>egl_<dpy>_nouveau</code></li>
+<li><code>egl_<dpy>_swrast</code></li>
<li><code>egl_<dpy>_vmwgfx</code></li>
</ul>