[PATCH 3/5] drm/xe/vram: report FLAT_CCS base misalignment

[Matthew Auld <matthew.auld@intel.com>]

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.

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
---
 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 7b4478fb1697..0a2f1ab8416e 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 */
 
+		if (!IS_ALIGNED(offset, SZ_128K))
+			drm_info(&xe->drm, "FLAT_CCS base misaligned: %llx\n", offset);
+
 		/*
 		 * Everything below this offset is handed to the VRAM
 		 * allocator, so it has to be the *first* address the
-- 
2.55.0