radeonsi: enable ARB_sparse_buffer

v2:
- fill in DRM version requirement
- disable on SI due to CP DMA faults

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
diff --git a/docs/features.txt b/docs/features.txt
index 1e145e1..6513c69 100644
--- a/docs/features.txt
+++ b/docs/features.txt
@@ -298,7 +298,7 @@
   GL_ARB_shader_group_vote                              DONE (nvc0, radeonsi)
   GL_ARB_shader_stencil_export                          DONE (i965/gen9+, radeonsi, softpipe, llvmpipe, swr)
   GL_ARB_shader_viewport_layer_array                    DONE (i965/gen6+)
-  GL_ARB_sparse_buffer                                  not started
+  GL_ARB_sparse_buffer                                  DONE (radeonsi/CIK+)
   GL_ARB_sparse_texture                                 not started
   GL_ARB_sparse_texture2                                not started
   GL_ARB_sparse_texture_clamp                           not started
diff --git a/docs/relnotes/17.1.0.html b/docs/relnotes/17.1.0.html
index 917ee94..74e389c 100644
--- a/docs/relnotes/17.1.0.html
+++ b/docs/relnotes/17.1.0.html
@@ -47,6 +47,7 @@
 <li>GL_ARB_gpu_shader_int64 on i965/gen8+, nvc0, radeonsi, softpipe, llvmpipe</li>
 <li>GL_ARB_shader_clock on radeonsi</li>
 <li>GL_ARB_shader_group_vote on radeonsi</li>
+<li>GL_ARB_sparse_buffer on radeonsi/CIK+</li>
 <li>GL_ARB_transform_feedback2 on i965/gen6</li>
 <li>GL_ARB_transform_feedback_overflow_query on i965/gen6+</li>
 <li>GL_NV_fill_rectangle on nvc0</li>