diff --git a/dsv4/kernels/attention/production.py b/dsv4/kernels/attention/production.py
index fec51f0f..2cb45815 100644
--- a/dsv4/kernels/attention/production.py
+++ b/dsv4/kernels/attention/production.py
@@ -453,10 +453,9 @@ def dsv4_attention(
     n_segments = (N + s_k_per_seg - 1) // s_k_per_seg
 
     if T == 1 and hd in (64, 128, 256, 512):
-        if n_segments == 1 and hd in (64, 128, 256):
-            return _dsv4_attention_fast_decode(q, k, v, scale, n_comp, sink_bias)
-        else:
-            return _dsv4_attention_multitile(q, k, v, scale, n_comp, sink_bias)
+        # P8: Unified fast path — multi-tile kernel handles all N
+        # (single-tile and multi-tile, T=1 decode)
+        return _dsv4_attention_multitile(q, k, v, scale, n_comp, sink_bias)
 
     # ==================================================================
     # SLOW PATH: CuTeDSL kernel + Python KV merge