From: Ville Syrjälä ville.syrjala@linux.intel.com

I'm seeing underruns with these 64bpp YUV formats on TGL.

The weird details: - only happens on pipe B/C/D SDR planes, pipe A SDR planes seem fine, as do all HDR planes - somehow CDCLK related, higher CDCLK allows for bigger plane with these formats without underruns. With 300MHz CDCLK I can only go up to 1200 pixels wide or so, with 650MHz even a 3840 pixel wide plane was OK - ICL and ADL so far appear unaffected

So not really sure what's the deal with this, but bspec does state "64-bit formats supported only on the HDR planes" so let's just drop these formats from the SDR planes. We already disallow 64bpp RGB formats.

Cc: stable@vger.kernel.org Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com --- drivers/gpu/drm/i915/display/skl_universal_plane.c | 4 ---- 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c index ff9764cac1e7..80e558042d97 100644 --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c @@ -106,8 +106,6 @@ static const u32 icl_sdr_y_plane_formats[] = { DRM_FORMAT_Y216, DRM_FORMAT_XYUV8888, DRM_FORMAT_XVYU2101010, - DRM_FORMAT_XVYU12_16161616, - DRM_FORMAT_XVYU16161616, };

static const u32 icl_sdr_uv_plane_formats[] = { @@ -134,8 +132,6 @@ static const u32 icl_sdr_uv_plane_formats[] = { DRM_FORMAT_Y216, DRM_FORMAT_XYUV8888, DRM_FORMAT_XVYU2101010, - DRM_FORMAT_XVYU12_16161616, - DRM_FORMAT_XVYU16161616, };

static const u32 icl_hdr_plane_formats[] = {