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-rw-r--r--Documentation/gpu/i915.rst82
1 files changed, 59 insertions, 23 deletions
diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst
index 3415255ad3dc..d0947c5c4ab8 100644
--- a/Documentation/gpu/i915.rst
+++ b/Documentation/gpu/i915.rst
@@ -246,6 +246,15 @@ Display PLLs
.. kernel-doc:: drivers/gpu/drm/i915/display/intel_dpll_mgr.h
:internal:
+Display State Buffer
+--------------------
+
+.. kernel-doc:: drivers/gpu/drm/i915/display/intel_dsb.c
+ :doc: DSB
+
+.. kernel-doc:: drivers/gpu/drm/i915/display/intel_dsb.c
+ :internal:
+
Memory Management and Command Submission
========================================
@@ -358,15 +367,6 @@ Batchbuffer Parsing
.. kernel-doc:: drivers/gpu/drm/i915/i915_cmd_parser.c
:internal:
-Batchbuffer Pools
------------------
-
-.. kernel-doc:: drivers/gpu/drm/i915/i915_gem_batch_pool.c
- :doc: batch pool
-
-.. kernel-doc:: drivers/gpu/drm/i915/i915_gem_batch_pool.c
- :internal:
-
User Batchbuffer Execution
--------------------------
@@ -415,32 +415,53 @@ Object Tiling IOCTLs
.. kernel-doc:: drivers/gpu/drm/i915/gem/i915_gem_tiling.c
:doc: buffer object tiling
+Microcontrollers
+================
+
+Starting from gen9, three microcontrollers are available on the HW: the
+graphics microcontroller (GuC), the HEVC/H.265 microcontroller (HuC) and the
+display microcontroller (DMC). The driver is responsible for loading the
+firmwares on the microcontrollers; the GuC and HuC firmwares are transferred
+to WOPCM using the DMA engine, while the DMC firmware is written through MMIO.
+
WOPCM
-=====
+-----
WOPCM Layout
-------------
+~~~~~~~~~~~~
.. kernel-doc:: drivers/gpu/drm/i915/intel_wopcm.c
:doc: WOPCM Layout
GuC
-===
+---
-Firmware Layout
--------------------
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc.c
+ :doc: GuC
+
+GuC Firmware Layout
+~~~~~~~~~~~~~~~~~~~
.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_uc_fw_abi.h
:doc: Firmware Layout
+GuC Memory Management
+~~~~~~~~~~~~~~~~~~~~~
+
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc.c
+ :doc: GuC Memory Management
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc.c
+ :functions: intel_guc_allocate_vma
+
+
GuC-specific firmware loader
-----------------------------
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c
:internal:
GuC-based command submission
-----------------------------
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
:doc: GuC-based command submission
@@ -448,11 +469,26 @@ GuC-based command submission
.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
:internal:
-GuC Address Space
------------------
+HuC
+---
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_huc.c
+ :doc: HuC
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_huc.c
+ :functions: intel_huc_auth
-.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc.c
- :doc: GuC Address Space
+HuC Memory Management
+~~~~~~~~~~~~~~~~~~~~~
+
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_huc.c
+ :doc: HuC Memory Management
+
+HuC Firmware Layout
+~~~~~~~~~~~~~~~~~~~
+The HuC FW layout is the same as the GuC one, see `GuC Firmware Layout`_
+
+DMC
+---
+See `CSR firmware support for DMC`_
Tracing
=======
@@ -514,9 +550,9 @@ i915 Perf Stream
This section covers the stream-semantics-agnostic structures and functions
for representing an i915 perf stream FD and associated file operations.
-.. kernel-doc:: drivers/gpu/drm/i915/i915_drv.h
+.. kernel-doc:: drivers/gpu/drm/i915/i915_perf_types.h
:functions: i915_perf_stream
-.. kernel-doc:: drivers/gpu/drm/i915/i915_drv.h
+.. kernel-doc:: drivers/gpu/drm/i915/i915_perf_types.h
:functions: i915_perf_stream_ops
.. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c
@@ -541,7 +577,7 @@ for representing an i915 perf stream FD and associated file operations.
i915 Perf Observation Architecture Stream
-----------------------------------------
-.. kernel-doc:: drivers/gpu/drm/i915/i915_drv.h
+.. kernel-doc:: drivers/gpu/drm/i915/i915_perf_types.h
:functions: i915_oa_ops
.. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c