Re: [PATCH v4 0/3] Selective Fetch and async flip

["Ville Syrjälä" <ville.syrjala@linux.intel.com>]

On Wed, Dec 10, 2025 at 06:31:02AM +0000, Hogander, Jouni wrote:
> On Wed, 2025-12-10 at 08:23 +0200, Hogander, Jouni wrote:
> > On Tue, 2025-12-09 at 20:26 +0200, Ville Syrjälä wrote:
> > > On Thu, Dec 04, 2025 at 09:07:15AM +0200, Jouni Högander wrote:
> > > > This patch set contains fixes for Selective Fetch async flip
> > > > sequences. On async flip selective fetch is choosing full frame
> > > > update. Also subsequent flip/update is still using full frame
> > > > update
> > > > to ensure plane with pending async flip is not taken in to
> > > > selective
> > > > fetch/update.
> > > > 
> > > > v4:
> > > >   - rework if-else if to if-if
> > > >   - added comment updated
> > > >   - check crtc_state->async_flip_planes in
> > > >     psr2_sel_fetch_pipe_state_supported
> > > > v3:
> > > >   - rebase
> > > >   - fix old_crtc_state->pipe_srcsz_early_tpt
> > > >   - fix using intel_atomic_get_new_crtc_state
> > > > v2:
> > > >   - check also crtc_state->async_flip_planes in
> > > >     psr2_sel_fetch_plane_state_supported
> > > > 
> > > > Jouni Högander (3):
> > > >   drm/i915/psr: Set plane id bit in crtc_state->async_flip_planes
> > > > for
> > > >     PSR
> > > >   drm/i915/psr: Perform full frame update on async flip
> > > >   drm/i915/psr: Allow async flip when Selective Fetch enabled
> > > 
> > > Series is
> > > Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > > 
> > > When testing this I saw that we get stuck into full frame mode
> > > all the time. But that seems to be a pre-existing issues caused
> > > by the broken selective fetch area calculation code. I suppose
> > > now that I have a laptop with a PSR2 panel I might have to dig out
> > > that branch of mine where I attempted to rewrite the whoile thing
> > > and figure out what was wrong with it...
> > > 
> > 
> > What is the SW setup you are using and what kind of testing you are
> > doing? Could it be related to frontbuffer tracking?
> 
> Also what is the HW/platform you are using?

This was a LNL.

-- 
Ville Syrjälä
Intel