FAILED: patch "[PATCH] drm/xe/vram: report FLAT_CCS base misalignment" failed to apply to 7.3-stable tree

FAILED: patch "[PATCH] drm/xe/vram: report FLAT_CCS base misalignment" failed to apply to 7.3-stable tree

[Sasha Levin]

The patch below does not apply to the 7.3-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-7.3.y
git checkout FETCH_HEAD
git cherry-pick -x d00b7f4f03bbeb2efad872f1686130e18c2b4141
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '20261107050251-failed-7.3-d00b7f4f03bb@kernel.org' --subject-prefix 'PATCH 7.3.y' 'HEAD^..'

Thanks,
Sasha

------------------ original commit in Linus's tree ------------------

From d00b7f4f03bbeb2efad872f1686130e18c2b4141 Mon Sep 17 00:00:00 2001
From: Matthew Auld <matthew.auld@intel.com>
Date: Wed, 2 Sep 2026 13:41:20 +0100
Subject: [PATCH] drm/xe/vram: report FLAT_CCS base misalignment
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

So we can easily check if a machine had the CCS bug, when looking back
over bug reports where we have the same machine with newer kernel.

Example print for a machine with the CCS bug:

  FLAT_CCS base:27bbff800, aligned:no

v2 (Matt B):
  - Unconditionally print the base + alignment

Fixes: 37173392741c ("drm/xe/vram: fix ccs offset calculation")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: stable@kernel.org
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260902124117.918018-9-matthew.auld@intel.com
---
 drivers/gpu/drm/xe/xe_vram.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_vram.c b/drivers/gpu/drm/xe/xe_vram.c
index 7b4478fb1697c..56cff1e44530b 100644
--- a/drivers/gpu/drm/xe/xe_vram.c
+++ b/drivers/gpu/drm/xe/xe_vram.c
@@ -90,6 +90,9 @@ static int get_flat_ccs_offset(struct xe_gt *gt, u64 tile_size, u64 *poffset)
 		offset |= offset_lo << 6; /* HW view bits 31:6 */
 		offset *= num_enabled; /* convert to SW view */
 
+		drm_info(&xe->drm, "FLAT_CCS base:%llx, aligned:%s\n", offset,
+			 str_yes_no(IS_ALIGNED(offset, SZ_128K)));
+
 		/*
 		 * Everything below this offset is handed to the VRAM
 		 * allocator, so it has to be the *first* address the
-- 
2.53.0