Another mistake during the conversion to DSS bitmaps: after retrieving
the DSS ID intel_sseu_find_first_xehp_dss() we forgot to modulo it down
to obtain which ID within the current gslice it is.
Fixes: b87d39019651 ("drm/i915/sseu: Disassociate internal subslice mask representation from uapi")
Cc: Balasubramani Vivekanandan <balasubramani.vivekanandan@xxxxxxxxx>
Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_workarounds.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index b7421f109c13..a5c0508c5b63 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1177,8 +1177,8 @@ xehp_init_mcr(struct intel_gt *gt, struct i915_wa_list *wal)
}
slice = __ffs(slice_mask);
- subslice = intel_sseu_find_first_xehp_dss(sseu, GEN_DSS_PER_GSLICE, slice);
- WARN_ON(subslice > GEN_DSS_PER_GSLICE);
+ subslice = intel_sseu_find_first_xehp_dss(sseu, GEN_DSS_PER_GSLICE, slice) %
+ GEN_DSS_PER_GSLICE;
__add_mcr_wa(gt, wal, slice, subslice);
--
2.35.3
