Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
109 lines
2.6 KiB
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109 lines
2.6 KiB
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=====================================
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drm/vc4 Broadcom VC4 Graphics Driver
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=====================================
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.. kernel-doc:: drivers/gpu/drm/vc4/vc4_drv.c
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:doc: Broadcom VC4 Graphics Driver
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Display Hardware Handling
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=========================
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This section covers everything related to the display hardware including
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the mode setting infrastructure, plane, sprite and cursor handling and
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display, output probing and related topics.
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Pixel Valve (DRM CRTC)
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----------------------
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.. kernel-doc:: drivers/gpu/drm/vc4/vc4_crtc.c
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:doc: VC4 CRTC module
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HVS
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---
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.. kernel-doc:: drivers/gpu/drm/vc4/vc4_hvs.c
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:doc: VC4 HVS module.
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HVS planes
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----------
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.. kernel-doc:: drivers/gpu/drm/vc4/vc4_plane.c
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:doc: VC4 plane module
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HDMI encoder
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------------
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.. kernel-doc:: drivers/gpu/drm/vc4/vc4_hdmi.c
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:doc: VC4 Falcon HDMI module
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DSI encoder
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-----------
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.. kernel-doc:: drivers/gpu/drm/vc4/vc4_dsi.c
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:doc: VC4 DSI0/DSI1 module
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DPI encoder
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-----------
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.. kernel-doc:: drivers/gpu/drm/vc4/vc4_dpi.c
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:doc: VC4 DPI module
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VEC (Composite TV out) encoder
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------------------------------
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.. kernel-doc:: drivers/gpu/drm/vc4/vc4_vec.c
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:doc: VC4 SDTV module
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KUnit Tests
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===========
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The VC4 Driver uses KUnit to perform driver-specific unit and
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integration tests.
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These tests are using a mock driver and can be ran using the
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command below, on either arm or arm64 architectures,
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.. code-block:: bash
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$ ./tools/testing/kunit/kunit.py run \
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--kunitconfig=drivers/gpu/drm/vc4/tests/.kunitconfig \
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--cross_compile aarch64-linux-gnu- --arch arm64
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Parts of the driver that are currently covered by tests are:
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* The HVS to PixelValve dynamic FIFO assignment, for the BCM2835-7
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and BCM2711.
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Memory Management and 3D Command Submission
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===========================================
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This section covers the GEM implementation in the vc4 driver.
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GPU buffer object (BO) management
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---------------------------------
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.. kernel-doc:: drivers/gpu/drm/vc4/vc4_bo.c
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:doc: VC4 GEM BO management support
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V3D binner command list (BCL) validation
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----------------------------------------
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.. kernel-doc:: drivers/gpu/drm/vc4/vc4_validate.c
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:doc: Command list validator for VC4.
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V3D render command list (RCL) generation
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----------------------------------------
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.. kernel-doc:: drivers/gpu/drm/vc4/vc4_render_cl.c
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:doc: Render command list generation
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Shader validator for VC4
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---------------------------
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.. kernel-doc:: drivers/gpu/drm/vc4/vc4_validate_shaders.c
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:doc: Shader validator for VC4.
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V3D Interrupts
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--------------
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.. kernel-doc:: drivers/gpu/drm/vc4/vc4_irq.c
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:doc: Interrupt management for the V3D engine
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