On Mon, 20 Dec 2010 22:55:46 -0500 Andrew Lutomirski <luto@xxxxxxx> wrote: > On Mon, Dec 20, 2010 at 10:47 PM, Keith Packard <keithp@xxxxxxxxxx> wrote: > > On Mon, 20 Dec 2010 22:34:12 -0500, Andrew Lutomirski <luto@xxxxxxx> wrote: > > > >> But five seconds is a *long* time, and anything short enough that the > >> interrupt actually gets turned off in normal use risks the same race. > > > > Right, so eliminating any race seems like the basic requirement. Can > > that be done? > > I'll give it a shot. > > Do you know if there's an existing tool to call drm_wait_vblank from > userspace for testing? I know approximately nothing about libdrm or > any userspace graphics stuff whatsoever. Yeah, libdrm has a test program called vbltest; it should do what you need. -- Jesse Barnes, Intel Open Source Technology Center _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
