Replace printf's used for tracking of in-flight fence inc/dec events
with tracing, for consistency with the rest of virtio-gpu code that
uses tracing.

Suggested-by: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
---
 hw/display/trace-events       | 2 ++
 hw/display/virtio-gpu-virgl.c | 2 +-
 hw/display/virtio-gpu.c       | 4 ++--
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/hw/display/trace-events b/hw/display/trace-events
index 781f8a33203b..e212710284ae 100644
--- a/hw/display/trace-events
+++ b/hw/display/trace-events
@@ -53,6 +53,8 @@ virtio_gpu_cmd_ctx_submit(uint32_t ctx, uint32_t size) "ctx 0x%x, size %d"
 virtio_gpu_update_cursor(uint32_t scanout, uint32_t x, uint32_t y, const char *type, uint32_t res) "scanout %d, x %d, y %d, %s, res 0x%x"
 virtio_gpu_fence_ctrl(uint64_t fence, uint32_t type) "fence 0x%" PRIx64 ", type 0x%x"
 virtio_gpu_fence_resp(uint64_t fence) "fence 0x%" PRIx64
+virtio_gpu_inc_inflight_fences(uint32_t inflight) "in-flight+ %u"
+virtio_gpu_dec_inflight_fences(uint32_t inflight) "in-flight- %u"
 
 # qxl.c
 disable qxl_io_write_vga(int qid, const char *mode, uint32_t addr, uint32_t val) "%d %s addr=%u val=%u"
diff --git a/hw/display/virtio-gpu-virgl.c b/hw/display/virtio-gpu-virgl.c
index 9f34d0e6619c..14091b191ec0 100644
--- a/hw/display/virtio-gpu-virgl.c
+++ b/hw/display/virtio-gpu-virgl.c
@@ -525,7 +525,7 @@ static void virgl_write_fence(void *opaque, uint32_t fence)
         g_free(cmd);
         g->inflight--;
         if (virtio_gpu_stats_enabled(g->parent_obj.conf)) {
-            fprintf(stderr, "inflight: %3d (-)\r", g->inflight);
+            trace_virtio_gpu_dec_inflight_fences(g->inflight);
         }
     }
 }
diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index d60b1b2973af..602952a7041b 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -1066,7 +1066,7 @@ void virtio_gpu_process_cmdq(VirtIOGPU *g)
                 if (g->stats.max_inflight < g->inflight) {
                     g->stats.max_inflight = g->inflight;
                 }
-                fprintf(stderr, "inflight: %3d (+)\r", g->inflight);
+                trace_virtio_gpu_inc_inflight_fences(g->inflight);
             }
         } else {
             g_free(cmd);
@@ -1086,7 +1086,7 @@ static void virtio_gpu_process_fenceq(VirtIOGPU *g)
         g_free(cmd);
         g->inflight--;
         if (virtio_gpu_stats_enabled(g->parent_obj.conf)) {
-            fprintf(stderr, "inflight: %3d (-)\r", g->inflight);
+            trace_virtio_gpu_dec_inflight_fences(g->inflight);
         }
     }
 }
-- 
2.44.0