drm/i915: Fix watermark calculations for gen12+ RC CCS modifier
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Mon, 3 Oct 2022 11:15:39 +0000 (14:15 +0300)
committerVille Syrjälä <ville.syrjala@linux.intel.com>
Mon, 3 Oct 2022 15:45:17 +0000 (18:45 +0300)
commita89a96a586114f67598c6391c75678b4dba5c2da
treea916f541a7cbcc6c7eab6b146dabde7161a562ac
parent8da8e32e0b095613af2c2ce4b322240269164a8e
drm/i915: Fix watermark calculations for gen12+ RC CCS modifier

Take the gen12+ RC CCS modifier into account when calculating the
watermarks. Othwerwise we'll calculate the watermarks thinking this
Y-tiled modifier is linear.

The rc_surface part is actually a nop since that is not used
for any glk+ platform.

v2: Split RC CCS vs. MC CCS to separate patches

Cc: stable@vger.kernel.org
Fixes: b3e57bccd68a ("drm/i915/tgl: Gen-12 render decompression")
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221003111544.8007-2-ville.syrjala@linux.intel.com
drivers/gpu/drm/i915/display/skl_watermark.c