diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c
index 9dca86fb3..51b0ba112 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.c
@@ -241,6 +241,9 @@ int gk20a_finalize_poweron(struct gk20a *g)
 		goto done;
 	}
 
+	/* init interface layer support for PMU falcon */
+	nvgpu_flcn_sw_init(g, FALCON_ID_PMU);
+
 	if (g->ops.pmu.is_pmu_supported(g)) {
 		if (g->ops.pmu.prepare_ucode)
 			err = g->ops.pmu.prepare_ucode(g);
diff --git a/drivers/gpu/nvgpu/gm20b/hal_gm20b.c b/drivers/gpu/nvgpu/gm20b/hal_gm20b.c
index c190a83cc..62cd61194 100644
--- a/drivers/gpu/nvgpu/gm20b/hal_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/hal_gm20b.c
@@ -17,6 +17,7 @@
 #include "gk20a/dbg_gpu_gk20a.h"
 #include "gk20a/css_gr_gk20a.h"
 #include "gk20a/bus_gk20a.h"
+#include "gk20a/flcn_gk20a.h"
 
 #include "ltc_gm20b.h"
 #include "ce2_gm20b.h"
@@ -225,6 +226,7 @@ int gm20b_init_hal(struct gk20a *g)
 	gm20b_init_ce2(gops);
 	gm20b_init_gr_ctx(gops);
 	gm20b_init_mm(gops);
+	gk20a_falcon_init_hal(gops);
 	gm20b_init_pmu_ops(gops);
 	gm20b_init_clk_ops(gops);
 	gm20b_init_regops(gops);
diff --git a/drivers/gpu/nvgpu/gp106/hal_gp106.c b/drivers/gpu/nvgpu/gp106/hal_gp106.c
index 8f72522f8..e39843acc 100644
--- a/drivers/gpu/nvgpu/gp106/hal_gp106.c
+++ b/drivers/gpu/nvgpu/gp106/hal_gp106.c
@@ -18,6 +18,7 @@
 #include "gk20a/css_gr_gk20a.h"
 #include "gk20a/bus_gk20a.h"
 #include "gk20a/pramin_gk20a.h"
+#include "gk20a/flcn_gk20a.h"
 
 #include "gp10b/gr_gp10b.h"
 #include "gp10b/fecs_trace_gp10b.h"
@@ -239,6 +240,7 @@ int gp106_init_hal(struct gk20a *g)
 	gp10b_init_ce(gops);
 	gp106_init_gr_ctx(gops);
 	gp106_init_mm(gops);
+	gk20a_falcon_init_hal(gops);
 	gp106_init_pmu_ops(gops);
 	gk20a_init_debug_ops(gops);
 	gk20a_init_dbg_session_ops(gops);
diff --git a/drivers/gpu/nvgpu/gp10b/hal_gp10b.c b/drivers/gpu/nvgpu/gp10b/hal_gp10b.c
index 0332897e6..e8cd6a718 100644
--- a/drivers/gpu/nvgpu/gp10b/hal_gp10b.c
+++ b/drivers/gpu/nvgpu/gp10b/hal_gp10b.c
@@ -18,6 +18,7 @@
 #include "gk20a/css_gr_gk20a.h"
 #include "gk20a/bus_gk20a.h"
 #include "gk20a/pramin_gk20a.h"
+#include "gk20a/flcn_gk20a.h"
 
 #include "gp10b/gr_gp10b.h"
 #include "gp10b/fecs_trace_gp10b.h"
@@ -240,6 +241,7 @@ int gp10b_init_hal(struct gk20a *g)
 	gp10b_init_ce(gops);
 	gp10b_init_gr_ctx(gops);
 	gp10b_init_mm(gops);
+	gk20a_falcon_init_hal(gops);
 	gp10b_init_pmu_ops(gops);
 	gk20a_init_debug_ops(gops);
 	gk20a_init_dbg_session_ops(gops);