On 28 Jan 2002, Michel [ISO-8859-1] Dänzer wrote:
> On Mon, 2002-01-28 at 10:00, Vladimir Dergachev wrote:
> >
> >
> > On 28 Jan 2002, Michel [ISO-8859-1] Dänzer wrote:
> >
> > > On Mon, 2002-01-28 at 04:54, Davor Buvinic wrote:
> > > >
> > > > Yes, running glxgears cause the movie player to crawl and if I start to move
> > > > or resize their windows X crashes.
> > > >
> > > > The movie player is MPlayer, today cvs.
> > > >
> > > > Here is my log file from X. As you can see, at the end of the file the
> > > > following messages appears:
> > > >
> > > > [...]
> > > > (II) R128(0): StopVideo
> > > > (EE) R128(0): Idle timed out, resetting engine...
> > > > [...]
> > >
> > > I have an idea what the problem could be. The Xv code still uses direct
> > > register access, even when the CCE is running. That's exactly what we
> > > want to avoid, because it can crash the chip. :)
> > >
> > > I probably won't have time this week to work on a solution but I suggest
> > > you try either shutting down the CCE before accessing registers or
> > > adding new Xv functions which use the CCE for register access (à la the
> > > CCE accel functions). I'd prefer not shutting down the CCE at any rate.
> > >
> >
> > Yes, that's what happens. I do think we need to shutdown CCE because in
> > some case we want to read registers - and not only write. The short term
> > solution would be to use XAA->Sync() instead of WaitForEngineIdle because
> > WaitForEngineIdle does not guarantee the card is quiscent in CCE mode.
>
> Sounds like the correct fix, except I don't even see 'WaitForEngineIdle'
> in my trees - is that a GATOS novelty? :)
Ahh.. sorry it's called XXXXXWaitForIdle :)) WaitForEngineIdle is how its
called in ATI sample code.
Btw, while I've been sleeping I thought how we could get CCE support into
Xvideo. The thing I am really against is duplicating code for case with
CCE and without. So, I thought, what about having "Software CCE" ? I.e.
always use CCE commands except that in case when dri driver is not
availabe emulate it. I am fairly certain emulating indirect buffer and 2d
commands would be pretty easy.
Vladimir Dergachev
>
>
> --
> Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
> XFree86 and DRI project member / CS student, Free Software enthusiast
>
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