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-rw-r--r--src/gallium/docs/source/screen.rst13
1 files changed, 8 insertions, 5 deletions
diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index 60c9af11b06..d19cd1a7446 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -104,7 +104,8 @@ The integer capabilities:
the flatshade_first setting in ``pipe_rasterizer_state``.
* ``PIPE_CAP_USER_VERTEX_BUFFERS``: Whether the driver supports user vertex
buffers. If not, the state tracker must upload all data which is not in hw
- resources.
+ resources. If user-space buffers are supported, the driver must also still
+ accept HW resource buffers.
* ``PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY``: This CAP describes a hw
limitation. If true, pipe_vertex_buffer::buffer_offset must always be aligned
to 4. If false, there are no restrictions on the offset.
@@ -118,10 +119,12 @@ The integer capabilities:
compute entry points defined in pipe_context and pipe_screen.
* ``PIPE_CAP_USER_INDEX_BUFFERS``: Whether user index buffers are supported.
If not, the state tracker must upload all indices which are not in hw
- resources.
-* ``PIPE_CAP_USER_CONSTANT_BUFFERS``: Whether user constant buffers are
- supported. If not, the state tracker must upload constants which are not in hw
- resources.
+ resources. If user-space buffers are supported, the driver must also still
+ accept HW resource buffers.
+* ``PIPE_CAP_USER_CONSTANT_BUFFERS``: Whether user-space constant buffers
+ are supported. If not, the state tracker must put constants into HW
+ resources/buffers. If user-space constant buffers are supported, the
+ driver must still accept HW constant buffers also.
* ``PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT``: Describes the required
alignment of pipe_constant_buffer::buffer_offset.
* ``PIPE_CAP_START_INSTANCE``: Whether the driver supports