On 15.05.2014 03:51, Daniel Vetter wrote: > Leftover from the old days of ums and should be used any longer. Since > > commit 29935554b384b1b3a7377d6f0b03b21d18a61683 > Author: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > Date: Wed May 30 00:58:09 2012 +0200 > > drm: Disallow DRM_IOCTL_MODESET_CTL for KMS drivers > > it is a complete no-Op for kms drivers. > > Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx> > --- > Documentation/DocBook/drm.tmpl | 11 +++++------ > 1 file changed, 5 insertions(+), 6 deletions(-) > > diff --git a/Documentation/DocBook/drm.tmpl b/Documentation/DocBook/drm.tmpl > index 83dd0b043c28..e37a77a72b8b 100644 > --- a/Documentation/DocBook/drm.tmpl > +++ b/Documentation/DocBook/drm.tmpl > @@ -2861,12 +2861,11 @@ int num_ioctls;</synopsis> > <term>DRM_IOCTL_MODESET_CTL</term> > <listitem> > <para> > - This should be called by application level drivers before and > - after mode setting, since on many devices the vertical blank > - counter is reset at that time. Internally, the DRM snapshots > - the last vblank count when the ioctl is called with the > - _DRM_PRE_MODESET command, so that the counter won't go backwards > - (which is dealt with when _DRM_POST_MODESET is used). > + This was only used for user-mode-settind drivers around > + modesetting changes to allow the kernel to update the vblank > + interrupt after mode setting, since on many devices the vertical > + blank. This sentence looks mangled pretty badly. Did you have something like this in mind? "This was only used for user-mode-setting drivers around modesetting changes to allow the kernel to keep the vertical blank counters consistent, since on many devices the hardware vertical blank counter is reset to 0 at some point during modeset changes." -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
