drm/i915/perf: Use GTT when saving/restoring engine GPR

MI_STORE_REGISTER_MEM and MI_LOAD_REGISTER_MEM need to know which
translation to use when saving restoring the engine general purpose
registers to and from the GT scratch. Since GT scratch is mapped to
ggtt, we need to set an additional bit in the command to use GTT.

Fixes: daed3e4 ("drm/i915/perf: implement active wait for noa configurations")
Suggested-by: Prathap Kumar Valsan <[email protected]>
Signed-off-by: Umesh Nerlige Ramappa <[email protected]>
Reviewed-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Chris Wilson <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Chris Wilson <[email protected]>

Author: unerlige

drivers/gpu/drm/i915/i915_perf.c

@@ -1592,6 +1592,7 @@ static u32 *save_restore_register(struct i915_perf_stream *stream, u32 *cs,
 	u32 d;
 
 	cmd = save ? MI_STORE_REGISTER_MEM : MI_LOAD_REGISTER_MEM;
+	cmd |= MI_SRM_LRM_GLOBAL_GTT;
 	if (INTEL_GEN(stream->perf->i915) >= 8)
 		cmd++;