=====================================
drm/vc4 Broadcom VC4 Graphics Driver
=====================================
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_drv.c
:doc: Broadcom VC4 Graphics Driver
Display Hardware Handling
=========================
This section covers everything related to the display hardware including
the mode setting infrastructure, plane, sprite and cursor handling and
display, output probing and related topics.
Pixel Valve (DRM CRTC)
----------------------
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_crtc.c
:doc: VC4 CRTC module
HVS
---
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_hvs.c
:doc: VC4 HVS module.
HVS planes
----------
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_plane.c
:doc: VC4 plane module
HDMI encoder
------------
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_hdmi.c
:doc: VC4 Falcon HDMI module
DSI encoder
-----------
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_dsi.c
:doc: VC4 DSI0/DSI1 module
DPI encoder
-----------
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_dpi.c
:doc: VC4 DPI module
VEC (Composite TV out) encoder
------------------------------
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_vec.c
:doc: VC4 SDTV module
KUnit Tests
===========
The VC4 Driver uses KUnit to perform driver-specific unit and
integration tests.
These tests are using a mock driver and can be ran using the
command below, on either arm or arm64 architectures,
.. code-block:: bash
$ ./tools/testing/kunit/kunit.py run \
--kunitconfig=drivers/gpu/drm/vc4/tests/.kunitconfig \
--cross_compile aarch64-linux-gnu- --arch arm64
Parts of the driver that are currently covered by tests are:
* The HVS to PixelValve dynamic FIFO assignment, for the BCM2835-7
and BCM2711.
Memory Management and 3D Command Submission
===========================================
This section covers the GEM implementation in the vc4 driver.
GPU buffer object (BO) management
---------------------------------
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_bo.c
:doc: VC4 GEM BO management support
V3D binner command list (BCL) validation
----------------------------------------
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_validate.c
:doc: Command list validator for VC4.
V3D render command list (RCL) generation
----------------------------------------
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_render_cl.c
:doc: Render command list generation
Shader validator for VC4
---------------------------
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_validate_shaders.c
:doc: Shader validator for VC4.
V3D Interrupts
--------------
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_irq.c
:doc: Interrupt management for the V3D engine
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