On Thu, 04 Jan 2024, José Roberto de Souza <jose.so...@intel.com> wrote: > Often getting DBS overflows when starting Xorg or Wayland compositors > when running Xe KMD. > Issue was reported but nothing was done, so disabling DSB as whole > until properly fixed in Xe KMD. > > v2: > - move check to HAS_DSB(Jani) > > v3: > - use IS_ENABLED(I915) check in intel_dsb_prepare() > > Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/989 > Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/1031 > Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/1072 > Cc: Animesh Manna <animesh.ma...@intel.com> > Cc: Rodrigo Vivi <rodrigo.v...@intel.com> > Cc: Jani Nikula <jani.nik...@intel.com> > Signed-off-by: José Roberto de Souza <jose.so...@intel.com>
Reviewed-by: Jani Nikula <jani.nik...@intel.com> > --- > drivers/gpu/drm/i915/display/intel_dsb.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c > b/drivers/gpu/drm/i915/display/intel_dsb.c > index 482c28b5c2de5..a6c7122fd671d 100644 > --- a/drivers/gpu/drm/i915/display/intel_dsb.c > +++ b/drivers/gpu/drm/i915/display/intel_dsb.c > @@ -453,6 +453,10 @@ struct intel_dsb *intel_dsb_prepare(const struct > intel_crtc_state *crtc_state, > if (!HAS_DSB(i915)) > return NULL; > > + /* TODO: DSB is broken in Xe KMD, so disabling it until fixed */ > + if (!IS_ENABLED(I915)) > + return NULL; > + > dsb = kzalloc(sizeof(*dsb), GFP_KERNEL); > if (!dsb) > goto out; -- Jani Nikula, Intel
