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Diffstat (limited to 'Documentation/DocBook/drm.tmpl')
| -rw-r--r-- | Documentation/DocBook/drm.tmpl | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/DocBook/drm.tmpl b/Documentation/DocBook/drm.tmpl index c358367f9f85..ba20f9fbb62b 100644 --- a/Documentation/DocBook/drm.tmpl +++ b/Documentation/DocBook/drm.tmpl @@ -720,8 +720,9 @@ void intel_crt_init(struct drm_device *dev) provides memory to back each object. When mapped into the GTT or used in a command buffer, the backing pages for an object are flushed to memory and marked write combined so as to be coherent - with the GPU. Likewise, when the GPU finishes rendering to an object, - if the CPU accesses it, it must be made coherent with the CPU's view + with the GPU. Likewise, if the CPU accesses an object after the GPU + has finished rendering to the object, then the object must be made + coherent with the CPU's view of memory, usually involving GPU cache flushing of various kinds. This core CPU<->GPU coherency management is provided by the GEM set domain function, which evaluates an object's current domain and |