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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-05-30 11:10:49 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-05-30 11:18:26 +0200 |
| commit | 0645de5a4c22638170f6e0bb31a0b1c9f52daf93 (patch) | |
| tree | a53d62183c9eb23dd055e29d656789b86e7bd700 /Documentation | |
| parent | drm/atomic-helper: Do not call ->mode_fixup for CRTC which will be disabled (diff) | |
| download | linux-0645de5a4c22638170f6e0bb31a0b1c9f52daf93.tar.xz linux-0645de5a4c22638170f6e0bb31a0b1c9f52daf93.zip | |
drm/doc: Unify KMS Locking docs
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1464599449-12509-1-git-send-email-daniel.vetter@ffwll.ch
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/DocBook/gpu.tmpl | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/Documentation/DocBook/gpu.tmpl b/Documentation/DocBook/gpu.tmpl index 90dbdb5087c4..221a4929ca59 100644 --- a/Documentation/DocBook/gpu.tmpl +++ b/Documentation/DocBook/gpu.tmpl @@ -1092,22 +1092,6 @@ int max_width, max_height;</synopsis> operation. </para> </sect2> - <sect2> - <title>Locking</title> - <para> - Beside some lookup structures with their own locking (which is hidden - behind the interface functions) most of the modeset state is protected - by the <code>dev-<mode_config.lock</code> mutex and additionally - per-crtc locks to allow cursor updates, pageflips and similar operations - to occur concurrently with background tasks like output detection. - Operations which cross domains like a full modeset always grab all - locks. Drivers there need to protect resources shared between crtcs with - additional locking. They also need to be careful to always grab the - relevant crtc locks if a modset functions touches crtc state, e.g. for - load detection (which does only grab the <code>mode_config.lock</code> - to allow concurrent screen updates on live crtcs). - </para> - </sect2> </sect1> <!-- Internals: kms initialization and cleanup --> |