diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2026-09-02 13:41:20 +0100 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2026-09-03 15:50:27 -0400 |
| commit | 0e68c74e44da81a4599c52437ee1f63a2c234470 (patch) | |
| tree | fd86184cb8f683181ca544eb72634d01f30f1e9b | |
| parent | 3663c8d1f31e65771bd73ee3259f35fd397f9933 (diff) | |
| download | linux-0e68c74e44da81a4599c52437ee1f63a2c234470.tar.gz linux-0e68c74e44da81a4599c52437ee1f63a2c234470.zip | |
drm/xe/vram: report FLAT_CCS base misalignment
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
(cherry picked from commit d00b7f4f03bbeb2efad872f1686130e18c2b4141)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
| -rw-r--r-- | drivers/gpu/drm/xe/xe_vram.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_vram.c b/drivers/gpu/drm/xe/xe_vram.c index 7b4478fb1697..56cff1e44530 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 |