Mesa (main): panfrost: Add perf_debug macros

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Module: Mesa
Branch: main
Commit: 256f4a5b02a06ffc701baa3e4fd150796b33b28a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=256f4a5b02a06ffc701baa3e4fd150796b33b28a

Author: Alyssa Rosenzweig <alyssa at collabora.com>
Date:   Mon Jul 12 13:55:30 2021 -0400

panfrost: Add perf_debug macros

Lifted from freedreno.

Signed-off-by: Alyssa Rosenzweig <alyssa at collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11830>

---

 src/gallium/drivers/panfrost/pan_screen.c |  1 +
 src/gallium/drivers/panfrost/pan_screen.h | 10 ++++++++++
 src/panfrost/lib/pan_util.h               |  2 +-
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/panfrost/pan_screen.c b/src/gallium/drivers/panfrost/pan_screen.c
index 4b1fabc1809..a1201baa477 100644
--- a/src/gallium/drivers/panfrost/pan_screen.c
+++ b/src/gallium/drivers/panfrost/pan_screen.c
@@ -57,6 +57,7 @@
 #include "panfrost-quirks.h"
 
 static const struct debug_named_value panfrost_debug_options[] = {
+        {"perf",      PAN_DBG_PERF,     "Enable performance warnings"},
         {"trace",     PAN_DBG_TRACE,    "Trace the command stream"},
         {"deqp",      PAN_DBG_DEQP,     "Hacks for dEQP"},
         {"dirty",     PAN_DBG_DIRTY,    "Always re-emit all state"},
diff --git a/src/gallium/drivers/panfrost/pan_screen.h b/src/gallium/drivers/panfrost/pan_screen.h
index e5261016092..33acb983d9a 100644
--- a/src/gallium/drivers/panfrost/pan_screen.h
+++ b/src/gallium/drivers/panfrost/pan_screen.h
@@ -36,6 +36,7 @@
 #include "util/u_dynarray.h"
 #include "util/bitset.h"
 #include "util/set.h"
+#include "util/log.h"
 
 #include "pan_device.h"
 #include "pan_mempool.h"
@@ -103,4 +104,13 @@ panfrost_fence_create(struct panfrost_context *ctx);
 void
 panfrost_cmdstream_screen_init(struct panfrost_screen *screen);
 
+#define perf_debug(dev, ...) \
+        do { \
+                if (unlikely((dev)->debug & PAN_DBG_PERF)) \
+                        mesa_logw(__VA_ARGS__); \
+        } while(0)
+
+#define perf_debug_ctx(ctx, ...) \
+        perf_debug(pan_device((ctx)->base.screen), __VA_ARGS__);
+
 #endif /* PAN_SCREEN_H */
diff --git a/src/panfrost/lib/pan_util.h b/src/panfrost/lib/pan_util.h
index 290d2951c24..64129846074 100644
--- a/src/panfrost/lib/pan_util.h
+++ b/src/panfrost/lib/pan_util.h
@@ -28,7 +28,7 @@
 #ifndef PAN_UTIL_H
 #define PAN_UTIL_H
 
-/* 0x0001 unused */
+#define PAN_DBG_PERF            0x0001
 #define PAN_DBG_TRACE           0x0002
 #define PAN_DBG_DEQP            0x0004
 #define PAN_DBG_DIRTY           0x0008