1 files changed, 16 insertions, 13 deletions
diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst
index 378e825754d5..0ca1550fd9dc 100644
--- a/Documentation/gpu/i915.rst
+++ b/Documentation/gpu/i915.rst
@@ -267,19 +267,22 @@ i915 driver.
 Intel GPU Basics
 ----------------
 
-An Intel GPU has multiple engines. There are several engine types.
-
-- RCS engine is for rendering 3D and performing compute, this is named
-  `I915_EXEC_RENDER` in user space.
-- BCS is a blitting (copy) engine, this is named `I915_EXEC_BLT` in user
-  space.
-- VCS is a video encode and decode engine, this is named `I915_EXEC_BSD`
-  in user space
-- VECS is video enhancement engine, this is named `I915_EXEC_VEBOX` in user
-  space.
-- The enumeration `I915_EXEC_DEFAULT` does not refer to specific engine;
-  instead it is to be used by user space to specify a default rendering
-  engine (for 3D) that may or may not be the same as RCS.
+An Intel GPU has multiple engines. There are several engine types:
+
+- Render Command Streamer (RCS). An engine for rendering 3D and
+  performing compute.
+- Blitting Command Streamer (BCS). An engine for performing blitting and/or
+  copying operations.
+- Video Command Streamer. An engine used for video encoding and decoding. Also
+  sometimes called 'BSD' in hardware documentation.
+- Video Enhancement Command Streamer (VECS). An engine for video enhancement.
+  Also sometimes called 'VEBOX' in hardware documentation.
+- Compute Command Streamer (CCS). An engine that has access to the media and
+  GPGPU pipelines, but not the 3D pipeline.
+- Graphics Security Controller (GSCCS). A dedicated engine for internal
+  communication with GSC controller on security related tasks like
+  High-bandwidth Digital Content Protection (HDCP), Protected Xe Path (PXP),
+  and HuC firmware authentication.
 
 The Intel GPU family is a family of integrated GPU's using Unified
 Memory Access. For having the GPU "do work", user space will feed the