mesa: Add a few more function traces

Sprinkle around a few more traces that were useful in locating fence
waits.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22098>

src/gallium/auxiliary/util/u_helpers.c

@@ -32,6 +32,7 @@
 #include "util/u_upload_mgr.h"
 #include "util/u_thread.h"
 #include "util/os_time.h"
+#include "util/perf/cpu_trace.h"
 #include <inttypes.h>
 
 /**
@@ -396,6 +397,8 @@ util_throttle_memory_usage(struct pipe_context *pipe,
    if (!t->max_mem_usage)
       return;
 
+   MESA_TRACE_FUNC();
+
    struct pipe_screen *screen = pipe->screen;
    struct pipe_fence_handle **fence = NULL;
    unsigned ring_size = ARRAY_SIZE(t->ring);

src/mesa/main/syncobj.c

@@ -65,6 +65,7 @@
 #include "util/hash_table.h"
 #include "util/set.h"
 #include "util/u_memory.h"
+#include "util/perf/cpu_trace.h"
 
 #include "syncobj.h"
 
@@ -122,6 +123,8 @@ __client_wait_sync(struct gl_context *ctx,
    struct pipe_screen *screen = pipe->screen;
    struct pipe_fence_handle *fence = NULL;
 
+   MESA_TRACE_FUNC();
+
    /* If the fence doesn't exist, assume it's signalled. */
    simple_mtx_lock(&obj->mutex);
    if (!obj->fence) {

src/mesa/state_tracker/st_cb_flush.c

@@ -44,6 +44,7 @@
 #include "pipe/p_defines.h"
 #include "pipe/p_screen.h"
 #include "util/u_gen_mipmap.h"
+#include "util/perf/cpu_trace.h"
 
 
 void
@@ -51,6 +52,8 @@ st_flush(struct st_context *st,
          struct pipe_fence_handle **fence,
          unsigned flags)
 {
+   MESA_TRACE_FUNC();
+
    /* We want to call this function periodically.
     * Typically, it has nothing to do so it shouldn't be expensive.
     */
@@ -69,6 +72,8 @@ st_finish(struct st_context *st)
 {
    struct pipe_fence_handle *fence = NULL;
 
+   MESA_TRACE_FUNC();
+
    st_flush(st, &fence, PIPE_FLUSH_ASYNC | PIPE_FLUSH_HINT_FINISH);
 
    if (fence) {

src/mesa/state_tracker/st_manager.c

@@ -62,6 +62,7 @@
 #include "util/u_surface.h"
 #include "util/list.h"
 #include "util/u_memory.h"
+#include "util/perf/cpu_trace.h"
 
 struct hash_table;
 
@@ -801,6 +802,8 @@ st_context_flush(struct st_context *st, unsigned flags,
 {
    unsigned pipe_flags = 0;
 
+   MESA_TRACE_FUNC();
+
    if (flags & ST_FLUSH_END_OF_FRAME)
       pipe_flags |= PIPE_FLUSH_END_OF_FRAME;
    if (flags & ST_FLUSH_FENCE_FD)