diff --git a/drivers/gpu/nvgpu/common/regops/regops.c b/drivers/gpu/nvgpu/common/regops/regops.c
index 72c8a6ea2..cd4c7324c 100644
--- a/drivers/gpu/nvgpu/common/regops/regops.c
+++ b/drivers/gpu/nvgpu/common/regops/regops.c
@@ -86,7 +86,7 @@ static bool validate_reg_ops(struct gk20a *g,
 int exec_regops_gk20a(struct gk20a *g,
 		      struct channel_gk20a *ch,
 		      struct nvgpu_dbg_reg_op *ops,
-		      u64 num_ops,
+		      u32 num_ops,
 		      bool is_profiler,
 		      bool *is_current_ctx)
 {
diff --git a/drivers/gpu/nvgpu/common/vgpu/debugger_vgpu.c b/drivers/gpu/nvgpu/common/vgpu/debugger_vgpu.c
index 8828ffe65..4e9a2324d 100644
--- a/drivers/gpu/nvgpu/common/vgpu/debugger_vgpu.c
+++ b/drivers/gpu/nvgpu/common/vgpu/debugger_vgpu.c
@@ -35,7 +35,7 @@
 int vgpu_exec_regops(struct gk20a *g,
 		     struct channel_gk20a *ch,
 		     struct nvgpu_dbg_reg_op *ops,
-		     u64 num_ops,
+		     u32 num_ops,
 		     bool is_profiler,
 		     bool *is_current_ctx)
 {
diff --git a/drivers/gpu/nvgpu/common/vgpu/debugger_vgpu.h b/drivers/gpu/nvgpu/common/vgpu/debugger_vgpu.h
index c6b6eb9a2..759b03197 100644
--- a/drivers/gpu/nvgpu/common/vgpu/debugger_vgpu.h
+++ b/drivers/gpu/nvgpu/common/vgpu/debugger_vgpu.h
@@ -32,7 +32,7 @@ struct channel_gk20a;
 int vgpu_exec_regops(struct gk20a *g,
 		     struct channel_gk20a *ch,
 		     struct nvgpu_dbg_reg_op *ops,
-		     u64 num_ops,
+		     u32 num_ops,
 		     bool is_profiler,
 		     bool *is_current_ctx);
 int vgpu_dbg_set_powergate(struct dbg_session_gk20a *dbg_s,
diff --git a/drivers/gpu/nvgpu/include/nvgpu/gk20a.h b/drivers/gpu/nvgpu/include/nvgpu/gk20a.h
index 78193dfde..9ec859ace 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/gk20a.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/gk20a.h
@@ -1479,7 +1479,7 @@ struct gpu_ops {
 		int (*exec_regops)(struct gk20a *g,
 			    struct channel_gk20a *ch,
 			    struct nvgpu_dbg_reg_op *ops,
-			    u64 num_ops,
+			    u32 num_ops,
 			    bool is_profiler,
 			    bool *is_current_ctx);
 		const struct regop_offset_range* (
diff --git a/drivers/gpu/nvgpu/include/nvgpu/regops.h b/drivers/gpu/nvgpu/include/nvgpu/regops.h
index 7a7a0126e..5305947dc 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/regops.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/regops.h
@@ -78,7 +78,7 @@ struct regop_offset_range {
 int exec_regops_gk20a(struct gk20a *g,
 		      struct channel_gk20a *ch,
 		      struct nvgpu_dbg_reg_op *ops,
-		      u64 num_ops,
+		      u32 num_ops,
 		      bool is_profiler,
 		      bool *is_current_ctx);
 
diff --git a/drivers/gpu/nvgpu/os/linux/ioctl_dbg.c b/drivers/gpu/nvgpu/os/linux/ioctl_dbg.c
index 5823c8be9..0b7a3eac7 100644
--- a/drivers/gpu/nvgpu/os/linux/ioctl_dbg.c
+++ b/drivers/gpu/nvgpu/os/linux/ioctl_dbg.c
@@ -857,7 +857,7 @@ static int nvgpu_ioctl_channel_reg_ops(struct dbg_session_gk20a *dbg_s,
 			return -ENOMEM;
 
 		while (ops_offset < args->num_ops && !err) {
-			const u64 num_ops =
+			const u32 num_ops =
 				min(args->num_ops - ops_offset,
 				    (u64)(g->dbg_regops_tmp_buf_ops));
 			const u64 fragment_size =
@@ -868,7 +868,7 @@ static int nvgpu_ioctl_channel_reg_ops(struct dbg_session_gk20a *dbg_s,
 				(args->ops +
 				 ops_offset * sizeof(struct nvgpu_dbg_gpu_reg_op));
 
-			nvgpu_log_fn(g, "Regops fragment: start_op=%llu ops=%llu",
+			nvgpu_log_fn(g, "Regops fragment: start_op=%llu ops=%u",
 				     ops_offset, num_ops);
 
 			nvgpu_log_fn(g, "Copying regops from userspace");