nak: Handle idp4 ureg latencies

Fixes: 6b8a4e6bb7 ("nak: Add Turing latency information")
Fixes: 7a01953a39 ("nak: Add Ampere and Ada latency information")
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/12993
Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34563>
(cherry picked from commit eee3c8eab8e57669bfa1397297c62a52215088a5)

.pick_status.json

@@ -1474,7 +1474,7 @@
         "description": "nak: Handle idp4 ureg latencies",
         "nominated": true,
         "nomination_type": 2,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": "6b8a4e6bb73117e1141fe80e6d8fdfe5d2a39d33",
         "notes": null

src/nouveau/compiler/nak/sm75_instr_latencies.rs

@@ -883,6 +883,7 @@ impl URegLatencySM75 {
             Op::Flo(_) => vdecoupled,
             Op::IAdd3(_) | Op::IAdd3X(_) => vcoupled,
             Op::IAbs(_) => vcoupled,
+            Op::IDp4(_) => vcoupled,
             Op::IMnMx(_) => vcoupled,
             Op::IMad(_) => vcoupled,
 

src/nouveau/compiler/nak/sm80_instr_latencies.rs

@@ -1017,6 +1017,7 @@ impl URegLatencySM80 {
             Op::Flo(_) => vdecoupled,
             Op::IAdd3(_) | Op::IAdd3X(_) => vcoupled,
             Op::IAbs(_) => vcoupled,
+            Op::IDp4(_) => vcoupled,
             Op::IMnMx(_) => vcoupled,
             Op::IMad(_) => vcoupled,