diff --git a/src/gallium/drivers/freedreno/ir3/ir3_const.h b/src/gallium/drivers/freedreno/ir3/ir3_const.h
index 348a2963513..a64323331d9 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_const.h
+++ b/src/gallium/drivers/freedreno/ir3/ir3_const.h
@@ -409,52 +409,6 @@ emit_tfbos(struct fd_context *ctx, const struct ir3_shader_variant *v,
 	}
 }
 
-static inline uint32_t
-max_tf_vtx(struct fd_context *ctx, const struct ir3_shader_variant *v)
-{
-	struct fd_streamout_stateobj *so = &ctx->streamout;
-	struct ir3_stream_output_info *info = &v->shader->stream_output;
-	uint32_t maxvtxcnt = 0x7fffffff;
-
-	if (ctx->screen->gpu_id >= 500)
-		return 0;
-	if (v->binning_pass)
-		return 0;
-	if (v->shader->stream_output.num_outputs == 0)
-		return 0;
-	if (so->num_targets == 0)
-		return 0;
-
-	/* offset to write to is:
-	 *
-	 *   total_vtxcnt = vtxcnt + offsets[i]
-	 *   offset = total_vtxcnt * stride[i]
-	 *
-	 *   offset =   vtxcnt * stride[i]       ; calculated in shader
-	 *            + offsets[i] * stride[i]   ; calculated at emit_tfbos()
-	 *
-	 * assuming for each vtx, each target buffer will have data written
-	 * up to 'offset + stride[i]', that leaves maxvtxcnt as:
-	 *
-	 *   buffer_size = (maxvtxcnt * stride[i]) + stride[i]
-	 *   maxvtxcnt   = (buffer_size - stride[i]) / stride[i]
-	 *
-	 * but shader is actually doing a less-than (rather than less-than-
-	 * equal) check, so we can drop the -stride[i].
-	 *
-	 * TODO is assumption about `offset + stride[i]` legit?
-	 */
-	for (unsigned i = 0; i < so->num_targets; i++) {
-		struct pipe_stream_output_target *target = so->targets[i];
-		unsigned stride = info->stride[i] * 4;   /* convert dwords->bytes */
-		if (target) {
-			uint32_t max = target->buffer_size / stride;
-			maxvtxcnt = MIN2(maxvtxcnt, max);
-		}
-	}
-
-	return maxvtxcnt;
-}
 
 static inline void
 emit_common_consts(const struct ir3_shader_variant *v, struct fd_ringbuffer *ring,
@@ -520,7 +474,7 @@ ir3_emit_vs_driver_params(const struct ir3_shader_variant *v,
 			[IR3_DP_VTXID_BASE]  = info->index_size ?
 					info->index_bias : draw->start,
 			[IR3_DP_INSTID_BASE] = info->start_instance,
-			[IR3_DP_VTXCNT_MAX]  = max_tf_vtx(ctx, v),
+			[IR3_DP_VTXCNT_MAX]  = ir3_max_tf_vtx(ctx, v),
 	};
 	if (v->key.ucp_enables) {
 		struct pipe_clip_state *ucp = &ctx->ucp;
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_gallium.c b/src/gallium/drivers/freedreno/ir3/ir3_gallium.c
index 1dee9edcdcd..d31d6beef1f 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_gallium.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_gallium.c
@@ -556,3 +556,50 @@ ir3_screen_fini(struct pipe_screen *pscreen)
 	ir3_compiler_destroy(screen->compiler);
 	screen->compiler = NULL;
 }
+
+uint32_t
+ir3_max_tf_vtx(struct fd_context *ctx, const struct ir3_shader_variant *v)
+{
+	struct fd_streamout_stateobj *so = &ctx->streamout;
+	struct ir3_stream_output_info *info = &v->shader->stream_output;
+	uint32_t maxvtxcnt = 0x7fffffff;
+
+	if (ctx->screen->gpu_id >= 500)
+		return 0;
+	if (v->binning_pass)
+		return 0;
+	if (v->shader->stream_output.num_outputs == 0)
+		return 0;
+	if (so->num_targets == 0)
+		return 0;
+
+	/* offset to write to is:
+	 *
+	 *   total_vtxcnt = vtxcnt + offsets[i]
+	 *   offset = total_vtxcnt * stride[i]
+	 *
+	 *   offset =   vtxcnt * stride[i]       ; calculated in shader
+	 *            + offsets[i] * stride[i]   ; calculated at emit_tfbos()
+	 *
+	 * assuming for each vtx, each target buffer will have data written
+	 * up to 'offset + stride[i]', that leaves maxvtxcnt as:
+	 *
+	 *   buffer_size = (maxvtxcnt * stride[i]) + stride[i]
+	 *   maxvtxcnt   = (buffer_size - stride[i]) / stride[i]
+	 *
+	 * but shader is actually doing a less-than (rather than less-than-
+	 * equal) check, so we can drop the -stride[i].
+	 *
+	 * TODO is assumption about `offset + stride[i]` legit?
+	 */
+	for (unsigned i = 0; i < so->num_targets; i++) {
+		struct pipe_stream_output_target *target = so->targets[i];
+		unsigned stride = info->stride[i] * 4;   /* convert dwords->bytes */
+		if (target) {
+			uint32_t max = target->buffer_size / stride;
+			maxvtxcnt = MIN2(maxvtxcnt, max);
+		}
+	}
+
+	return maxvtxcnt;
+}
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_gallium.h b/src/gallium/drivers/freedreno/ir3/ir3_gallium.h
index 663e8d48676..8dc87bf7d87 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_gallium.h
+++ b/src/gallium/drivers/freedreno/ir3/ir3_gallium.h
@@ -77,4 +77,6 @@ ir3_point_sprite(const struct ir3_shader_variant *fs, int i,
 	}
 }
 
+uint32_t ir3_max_tf_vtx(struct fd_context *ctx, const struct ir3_shader_variant *v) assert_dt;
+
 #endif /* IR3_GALLIUM_H_ */