Documentation/gpu: Reorganize DC documentation

Display core documentation is not well organized, and it is hard to find
information due to the lack of sections. This commit reorganizes the
documentation layout, and it is preparation work for future changes.

Changes since V1:
- Christian: Group amdgpu documentation together.
- Daniel: Drop redundant amdgpu prefix.
- Jani: Create index pages.
- Yann: Mirror display folder in the documentation.

Reviewed-by: Yann Dirson <ydirson@free.fr>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rodrigo Siqueira 2021-11-25 10:38:25 -05:00 committed by Alex Deucher
parent 6ff7fddbd1
commit e91f840142
6 changed files with 91 additions and 79 deletions

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@ -1,74 +0,0 @@
===================================
drm/amd/display - Display Core (DC)
===================================
*placeholder - general description of supported platforms, what dc is, etc.*
Because it is partially shared with other operating systems, the Display Core
Driver is divided in two pieces.
1. **Display Core (DC)** contains the OS-agnostic components. Things like
hardware programming and resource management are handled here.
2. **Display Manager (DM)** contains the OS-dependent components. Hooks to the
amdgpu base driver and DRM are implemented here.
It doesn't help that the entire package is frequently referred to as DC. But
with the context in mind, it should be clear.
When CONFIG_DRM_AMD_DC is enabled, DC will be initialized by default for
supported ASICs. To force disable, set `amdgpu.dc=0` on kernel command line.
Likewise, to force enable on unsupported ASICs, set `amdgpu.dc=1`.
To determine if DC is loaded, search dmesg for the following entry:
``Display Core initialized with <version number here>``
AMDgpu Display Manager
======================
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:doc: overview
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
:internal:
Lifecycle
---------
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:doc: DM Lifecycle
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:functions: dm_hw_init dm_hw_fini
Interrupts
----------
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
:doc: overview
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
:internal:
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:functions: register_hpd_handlers dm_crtc_high_irq dm_pflip_high_irq
Atomic Implementation
---------------------
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:doc: atomic
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:functions: amdgpu_dm_atomic_check amdgpu_dm_atomic_commit_tail
Display Core
============
**WIP**
FreeSync Video
--------------
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:doc: FreeSync Video

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@ -0,0 +1,4 @@
Display Core Debug tools
========================
TODO

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@ -0,0 +1,42 @@
======================
AMDgpu Display Manager
======================
.. contents:: Table of Contents
:depth: 3
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:doc: overview
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
:internal:
Lifecycle
=========
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:doc: DM Lifecycle
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:functions: dm_hw_init dm_hw_fini
Interrupts
==========
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
:doc: overview
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
:internal:
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:functions: register_hpd_handlers dm_crtc_high_irq dm_pflip_high_irq
Atomic Implementation
=====================
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:doc: atomic
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:functions: amdgpu_dm_atomic_check amdgpu_dm_atomic_commit_tail

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@ -0,0 +1,29 @@
===================================
drm/amd/display - Display Core (DC)
===================================
*placeholder - general description of supported platforms, what dc is, etc.*
Because it is partially shared with other operating systems, the Display Core
Driver is divided in two pieces.
1. **Display Core (DC)** contains the OS-agnostic components. Things like
hardware programming and resource management are handled here.
2. **Display Manager (DM)** contains the OS-dependent components. Hooks to the
amdgpu base driver and DRM are implemented here.
It doesn't help that the entire package is frequently referred to as DC. But
with the context in mind, it should be clear.
When CONFIG_DRM_AMD_DC is enabled, DC will be initialized by default for
supported ASICs. To force disable, set `amdgpu.dc=0` on kernel command line.
Likewise, to force enable on unsupported ASICs, set `amdgpu.dc=1`.
To determine if DC is loaded, search dmesg for the following entry:
.. toctree::
display-manager.rst
dc-debug.rst
``Display Core initialized with <version number here>``

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@ -1,6 +1,6 @@
=========================
==========================
drm/amdgpu AMDgpu driver
=========================
==========================
The drm/amdgpu driver supports all AMD Radeon GPUs based on the Graphics Core
Next (GCN) architecture.
@ -71,7 +71,7 @@ Interrupt Handling
:internal:
IP Blocks
------------------
---------
.. kernel-doc:: drivers/gpu/drm/amd/include/amd_shared.h
:doc: IP Blocks
@ -79,6 +79,18 @@ IP Blocks
.. kernel-doc:: drivers/gpu/drm/amd/include/amd_shared.h
:identifiers: amd_ip_block_type amd_ip_funcs
Display Core
============
This section covers Display core.
.. toctree::
display/index
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:doc: overview
AMDGPU XGMI Support
===================

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@ -4,8 +4,7 @@ GPU Driver Documentation
.. toctree::
amdgpu
amdgpu-dc
amdgpu/index
i915
mcde
meson