From 1b04ffb02605d104316489d872d32cb279a41155 Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Mon, 6 Sep 2021 21:27:13 +0300
Subject: drm/i915: Follow a new->old platform check order in
 intel_fb_stride_alignment
Git-commit: 929dd111dcf8395e72635e0e7a4e502a6bb6b3d0
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

Follow the usual new->old order in intel_fb_stride_alignment() platform
check ladder.

Cc: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210906182715.3915100-5-imre.deak@intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/i915/display/intel_fb.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_fb.c b/drivers/gpu/drm/i915/display/intel_fb.c
index a0db67e85c71..479c76c7958c 100644
--- a/drivers/gpu/drm/i915/display/intel_fb.c
+++ b/drivers/gpu/drm/i915/display/intel_fb.c
@@ -1158,6 +1158,12 @@ intel_fb_stride_alignment(const struct drm_framebuffer *fb, int color_plane)
 
 	tile_width = intel_tile_width_bytes(fb, color_plane);
 	if (is_ccs_modifier(fb->modifier)) {
+		/*
+		 * On TGL the surface stride must be 4 tile aligned, mapped by
+		 * one 64 byte cacheline on the CCS AUX surface.
+		 */
+		if (DISPLAY_VER(dev_priv) >= 12)
+			tile_width *= 4;
 		/*
 		 * Display WA #0531: skl,bxt,kbl,glk
 		 *
@@ -1167,14 +1173,8 @@ intel_fb_stride_alignment(const struct drm_framebuffer *fb, int color_plane)
 		 * require the entire fb to accommodate that to avoid
 		 * potential runtime errors at plane configuration time.
 		 */
-		if ((DISPLAY_VER(dev_priv) == 9 || IS_GEMINILAKE(dev_priv)) &&
-		    color_plane == 0 && fb->width > 3840)
-			tile_width *= 4;
-		/*
-		 * The main surface pitch must be padded to a multiple of four
-		 * tile widths.
-		 */
-		else if (DISPLAY_VER(dev_priv) >= 12)
+		else if ((DISPLAY_VER(dev_priv) == 9 || IS_GEMINILAKE(dev_priv)) &&
+			 color_plane == 0 && fb->width > 3840)
 			tile_width *= 4;
 	}
 	return tile_width;
-- 
2.38.1