From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> commit b2e3a1af8cce4117de06ff1a4eab0749753ede27 upstream. Take the DG2 CCS+CC modifier into account when calculating the watermarks. Othwerwise we'll calculate the watermarks thinking this tile-4 modifier is linear. The rc_surface part is actually a nop since that is not used for any glk+ platform. Cc: stable@xxxxxxxxxxxxxxx Fixes: 680025dcc400 ("drm/i915/dg2: Add support for DG2 clear color compression") Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@xxxxxxxxx> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20221003111544.8007-6-ville.syrjala@xxxxxxxxxxxxxxx (cherry picked from commit 334810f82024815283a6e7febd3d2de1fed6c232) Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/intel_pm.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5313,7 +5313,8 @@ skl_compute_wm_params(const struct intel modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS || modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC || modifier == I915_FORMAT_MOD_4_TILED_DG2_RC_CCS || - modifier == I915_FORMAT_MOD_4_TILED_DG2_MC_CCS; + modifier == I915_FORMAT_MOD_4_TILED_DG2_MC_CCS || + modifier == I915_FORMAT_MOD_4_TILED_DG2_RC_CCS_CC; wp->x_tiled = modifier == I915_FORMAT_MOD_X_TILED; wp->rc_surface = modifier == I915_FORMAT_MOD_Y_TILED_CCS || modifier == I915_FORMAT_MOD_Yf_TILED_CCS || @@ -5321,7 +5322,8 @@ skl_compute_wm_params(const struct intel modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS || modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC || modifier == I915_FORMAT_MOD_4_TILED_DG2_RC_CCS || - modifier == I915_FORMAT_MOD_4_TILED_DG2_MC_CCS; + modifier == I915_FORMAT_MOD_4_TILED_DG2_MC_CCS || + modifier == I915_FORMAT_MOD_4_TILED_DG2_RC_CCS_CC; wp->is_planar = intel_format_info_is_yuv_semiplanar(format, modifier); wp->width = width;