Adaptive Sync enabling in Xorg Modesetting driver

[uday kiran pichika]

Thanks for your quick check Michel. I had removed the condition in my local
source in ms_present_check_unflip() method and moved the assignment to
ms_present_check_flip() method. Below is the snippet.

static Bool ms_present_check_flip(RRCrtcPtr crtc,
                      WindowPtr window,
                      PixmapPtr pixmap,
                      Bool sync_flip,
                      PresentFlipReason *reason)
{
    if (ms->drmmode.sprites_visible > 0)
        return FALSE;

    Bool ret = ms_present_check_unflip(crtc, window, pixmap, sync_flip,
reason);
    ms->flip_window = window;
    return ret;
}

Still the problem exists.

Thanks
Uday Kiran


On Mon, May 25, 2020 at 9:49 PM Michel Dänzer <michel at daenzer.net> wrote:

> On 2020-05-25 4:58 p.m., uday kiran pichika wrote:
> > Thanks Michel..
> >
> > sorry if my description is not clear.
> > Yes I have used with glxgears in fullscreen mode and also a simple glxapp
> > which actually opens in fullscreen by default.
> >
> > In both the cases, the issue is same.
> >
> > Just wanted to know if AMD has done anything different apart from the
> > configurations either in MESA or in its Radeon driver ?
>
> The code you can see in xf86-video-amdgpu and Mesa is working for lots
> of people, most of them outside of AMD.
>
>
> I think I've spotted one bug in your changes, in ms_present_check_unflip:
>
>     if (ms->drmmode.sprites_visible > 0)
>         ms->flip_window = window;
>
> ms_present_check_flip has:
>
>     if (ms->drmmode.sprites_visible > 0)
>         return FALSE;
>
>     return ms_present_check_unflip(crtc, window, pixmap, sync_flip,
> reason);
>
> So the condition can never be true in ms_present_check_unflip, and it
> never updates ms->flip_window.
>
>
> --
> Earthling Michel Dänzer               |               https://redhat.com
> Libre software enthusiast             |             Mesa and X developer
>
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