On Fri, May 26, 2023 at 07:37:54PM +0300, Jani Nikula wrote: > We assume the plane offset is 0. Warn if it's not. This also fixes a > warn on unused but set variable offset. > > Suggested-by: Ville Syrjälä <[email protected]> > Signed-off-by: Jani Nikula <[email protected]> > --- > drivers/gpu/drm/i915/display/i9xx_plane.c | 2 ++ > drivers/gpu/drm/i915/display/skl_universal_plane.c | 1 + > 2 files changed, 3 insertions(+) > > diff --git a/drivers/gpu/drm/i915/display/i9xx_plane.c > b/drivers/gpu/drm/i915/display/i9xx_plane.c > index 616654adbfb8..b52a681ca85e 100644 > --- a/drivers/gpu/drm/i915/display/i9xx_plane.c > +++ b/drivers/gpu/drm/i915/display/i9xx_plane.c > @@ -1037,6 +1037,8 @@ i9xx_get_initial_plane_config(struct intel_crtc *crtc, > } > plane_config->base = base; > > + drm_WARN_ON(&dev_priv->drm, offset != 0); > +
The gen2/3 codepath doesn't appear to initialize offset at all. With that fixed this is Reviewed-by: Ville Syrjälä <[email protected]> > val = intel_de_read(dev_priv, PIPESRC(pipe)); > fb->width = REG_FIELD_GET(PIPESRC_WIDTH_MASK, val) + 1; > fb->height = REG_FIELD_GET(PIPESRC_HEIGHT_MASK, val) + 1; > diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c > b/drivers/gpu/drm/i915/display/skl_universal_plane.c > index 36070d86550f..6b01a0b68b97 100644 > --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c > +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c > @@ -2529,6 +2529,7 @@ skl_get_initial_plane_config(struct intel_crtc *crtc, > plane_config->base = base; > > offset = intel_de_read(dev_priv, PLANE_OFFSET(pipe, plane_id)); > + drm_WARN_ON(&dev_priv->drm, offset != 0); > > val = intel_de_read(dev_priv, PLANE_SIZE(pipe, plane_id)); > fb->height = REG_FIELD_GET(PLANE_HEIGHT_MASK, val) + 1; > -- > 2.39.2 -- Ville Syrjälä Intel
