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-rw-r--r--Documentation/DocBook/drm.tmpl20
1 files changed, 5 insertions, 15 deletions
diff --git a/Documentation/DocBook/drm.tmpl b/Documentation/DocBook/drm.tmpl
index b0300529ab13..c9cbb3fe0e6a 100644
--- a/Documentation/DocBook/drm.tmpl
+++ b/Documentation/DocBook/drm.tmpl
@@ -1141,23 +1141,13 @@ int max_width, max_height;</synopsis>
1141 the <methodname>page_flip</methodname> operation will be called with a 1141 the <methodname>page_flip</methodname> operation will be called with a
1142 non-NULL <parameter>event</parameter> argument pointing to a 1142 non-NULL <parameter>event</parameter> argument pointing to a
1143 <structname>drm_pending_vblank_event</structname> instance. Upon page 1143 <structname>drm_pending_vblank_event</structname> instance. Upon page
1144 flip completion the driver must fill the 1144 flip completion the driver must call <methodname>drm_send_vblank_event</methodname>
1145 <parameter>event</parameter>::<structfield>event</structfield> 1145 to fill in the event and send to wake up any waiting processes.
1146 <structfield>sequence</structfield>, <structfield>tv_sec</structfield> 1146 This can be performed with
1147 and <structfield>tv_usec</structfield> fields with the associated
1148 vertical blanking count and timestamp, add the event to the
1149 <parameter>drm_file</parameter> list of events to be signaled, and wake
1150 up any waiting process. This can be performed with
1151 <programlisting><![CDATA[ 1147 <programlisting><![CDATA[
1152 struct timeval now;
1153
1154 event->event.sequence = drm_vblank_count_and_time(..., &now);
1155 event->event.tv_sec = now.tv_sec;
1156 event->event.tv_usec = now.tv_usec;
1157
1158 spin_lock_irqsave(&dev->event_lock, flags); 1148 spin_lock_irqsave(&dev->event_lock, flags);
1159 list_add_tail(&event->base.link, &event->base.file_priv->event_list); 1149 ...
1160 wake_up_interruptible(&event->base.file_priv->event_wait); 1150 drm_send_vblank_event(dev, pipe, event);
1161 spin_unlock_irqrestore(&dev->event_lock, flags); 1151 spin_unlock_irqrestore(&dev->event_lock, flags);
1162 ]]></programlisting> 1152 ]]></programlisting>
1163 </para> 1153 </para>