[Mesa-dev] [PATCH 11/36] i965: Add debug flag to print out the new L3 state during transitions.

[Jordan Justen]

From: Francisco Jerez <currojerez at riseup.net>

---
 src/mesa/drivers/dri/i965/gen7_l3_state.c | 17 +++++++++++++++++
 src/mesa/drivers/dri/i965/intel_debug.c   |  1 +
 src/mesa/drivers/dri/i965/intel_debug.h   |  1 +
 3 files changed, 19 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/gen7_l3_state.c b/src/mesa/drivers/dri/i965/gen7_l3_state.c
index 58eb07b..45bad02 100644
--- a/src/mesa/drivers/dri/i965/gen7_l3_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_l3_state.c
@@ -435,6 +435,18 @@ update_urb_size(struct brw_context *brw, const struct brw_l3_config *cfg)
    }
 }
 
+/**
+ * Print out the specified L3 configuration.
+ */
+static void
+dump_l3_config(const struct brw_l3_config *cfg)
+{
+   fprintf(stderr, "SLM=%d URB=%d ALL=%d DC=%d RO=%d IS=%d C=%d T=%d\n",
+           cfg->n[L3P_SLM], cfg->n[L3P_URB], cfg->n[L3P_ALL],
+           cfg->n[L3P_DC], cfg->n[L3P_RO],
+           cfg->n[L3P_IS], cfg->n[L3P_C], cfg->n[L3P_T]);
+}
+
 static void
 emit_l3_state(struct brw_context *brw)
 {
@@ -464,6 +476,11 @@ emit_l3_state(struct brw_context *brw)
       setup_l3_config(brw, cfg);
       update_urb_size(brw, cfg);
       brw->l3.config = cfg;
+
+      if (unlikely(INTEL_DEBUG & DEBUG_L3)) {
+         fprintf(stderr, "L3 config transition (%f > %f): ", dw, dw_threshold);
+         dump_l3_config(cfg);
+      }
    }
 }
 
diff --git a/src/mesa/drivers/dri/i965/intel_debug.c b/src/mesa/drivers/dri/i965/intel_debug.c
index c00d2e7..495540a 100644
--- a/src/mesa/drivers/dri/i965/intel_debug.c
+++ b/src/mesa/drivers/dri/i965/intel_debug.c
@@ -75,6 +75,7 @@ static const struct debug_control debug_control[] = {
    { "cs",          DEBUG_CS },
    { "hex",         DEBUG_HEX },
    { "nocompact",   DEBUG_NO_COMPACTION },
+   { "l3",          DEBUG_L3 },
    { NULL,    0 }
 };
 
diff --git a/src/mesa/drivers/dri/i965/intel_debug.h b/src/mesa/drivers/dri/i965/intel_debug.h
index 98bd7e9..7a8ecec 100644
--- a/src/mesa/drivers/dri/i965/intel_debug.h
+++ b/src/mesa/drivers/dri/i965/intel_debug.h
@@ -69,6 +69,7 @@ extern uint64_t INTEL_DEBUG;
 #define DEBUG_CS                  (1ull << 33)
 #define DEBUG_HEX                 (1ull << 34)
 #define DEBUG_NO_COMPACTION       (1ull << 35)
+#define DEBUG_L3                  (1ull << 36)
 
 #ifdef HAVE_ANDROID_PLATFORM
 #define LOG_TAG "INTEL-MESA"
-- 
2.6.2