From 796b7a2dca8ad9d68c2c7ef0b0957324cf31cdc5 Mon Sep 17 00:00:00 2001
From: Anthony Pesch <inolen@gmail.com>
Date: Wed, 15 Nov 2017 08:35:51 -0500
Subject: [PATCH] added tmu stats debug menu

---
 src/guest/holly/holly.c |  8 ++++----
 src/guest/holly/holly.h |  2 +-
 src/guest/sh4/sh4.c     | 12 ++++++++++--
 src/guest/sh4/sh4.h     |  4 +++-
 src/guest/sh4/sh4_mem.c |  4 ++--
 src/guest/sh4/sh4_tmu.c | 40 ++++++++++++++++++++++++++++++++++++++++
 src/guest/sh4/sh4_tmu.h |  8 ++++++++
 7 files changed, 68 insertions(+), 10 deletions(-)
 create mode 100644 src/guest/sh4/sh4_tmu.h

diff --git a/src/guest/holly/holly.c b/src/guest/holly/holly.c
index 34afed18..f8da6e22 100644
--- a/src/guest/holly/holly.c
+++ b/src/guest/holly/holly.c
@@ -317,7 +317,7 @@ void holly_reg_write(struct holly *hl, uint32_t addr, uint32_t data,
   uint32_t offset = addr >> 2;
   reg_write_cb write = holly_cb[offset].write;
 
-  if (hl->log_reg_access) {
+  if (hl->log_regs) {
     LOG_INFO("holly_reg_write addr=0x%08x data=0x%x", addr, data & mask);
   }
 
@@ -340,7 +340,7 @@ uint32_t holly_reg_read(struct holly *hl, uint32_t addr, uint32_t mask) {
     data = hl->reg[offset];
   }
 
-  if (hl->log_reg_access) {
+  if (hl->log_regs) {
     LOG_INFO("holly_reg_read addr=0x%08x data=0x%x", addr, data);
   }
 
@@ -351,8 +351,8 @@ uint32_t holly_reg_read(struct holly *hl, uint32_t addr, uint32_t mask) {
 void holly_debug_menu(struct holly *hl) {
   if (igBeginMainMenuBar()) {
     if (igBeginMenu("HOLLY", 1)) {
-      if (igMenuItem("log reg access", NULL, hl->log_reg_access, 1)) {
-        hl->log_reg_access = !hl->log_reg_access;
+      if (igMenuItem("log reg access", NULL, hl->log_regs, 1)) {
+        hl->log_regs = !hl->log_regs;
       }
 
       if (igMenuItem("raise all HOLLY_INT_NRM", NULL, 0, 1)) {
diff --git a/src/guest/holly/holly.h b/src/guest/holly/holly.h
index d323b595..01bad8b9 100644
--- a/src/guest/holly/holly.h
+++ b/src/guest/holly/holly.h
@@ -29,7 +29,7 @@ struct holly {
   struct holly_g2_dma dma[HOLLY_G2_NUM_CHAN];
 
   /* debug */
-  int log_reg_access;
+  int log_regs;
 };
 
 extern struct reg_cb holly_cb[NUM_HOLLY_REGS];
diff --git a/src/guest/sh4/sh4.c b/src/guest/sh4/sh4.c
index cadec0aa..53ff8921 100644
--- a/src/guest/sh4/sh4.c
+++ b/src/guest/sh4/sh4.c
@@ -296,8 +296,12 @@ void sh4_debug_menu(struct sh4 *sh4) {
         }
       }
 
-      if (igMenuItem("log reg access", NULL, sh4->log_reg_access, 1)) {
-        sh4->log_reg_access = !sh4->log_reg_access;
+      if (igMenuItem("log reg access", NULL, sh4->log_regs, 1)) {
+        sh4->log_regs = !sh4->log_regs;
+      }
+
+      if (igMenuItem("tmu stats", NULL, sh4->tmu_stats, 1)) {
+        sh4->tmu_stats = !sh4->tmu_stats;
       }
 
       igEndMenu();
@@ -305,6 +309,10 @@ void sh4_debug_menu(struct sh4 *sh4) {
 
     igEndMainMenuBar();
   }
+
+  if (sh4->tmu_stats) {
+    sh4_tmu_debug_menu(sh4);
+  }
 }
 #endif
 
diff --git a/src/guest/sh4/sh4.h b/src/guest/sh4/sh4.h
index 80ffcbe6..1bb23fb1 100644
--- a/src/guest/sh4/sh4.h
+++ b/src/guest/sh4/sh4.h
@@ -9,6 +9,7 @@
 #include "guest/sh4/sh4_mem.h"
 #include "guest/sh4/sh4_mmu.h"
 #include "guest/sh4/sh4_scif.h"
+#include "guest/sh4/sh4_tmu.h"
 #include "guest/sh4/sh4_types.h"
 #include "jit/frontend/sh4/sh4_guest.h"
 #include "jit/jit.h"
@@ -43,7 +44,8 @@ struct sh4 {
   struct jit_backend *backend;
 
   /* dbg */
-  int log_reg_access;
+  int log_regs;
+  int tmu_stats;
   struct list breakpoints;
 
   /* intc */
diff --git a/src/guest/sh4/sh4_mem.c b/src/guest/sh4/sh4_mem.c
index e11c270a..967f919c 100644
--- a/src/guest/sh4/sh4_mem.c
+++ b/src/guest/sh4/sh4_mem.c
@@ -17,7 +17,7 @@ static uint32_t sh4_reg_read(struct sh4 *sh4, uint32_t addr, uint32_t mask) {
     data = sh4->reg[offset];
   }
 
-  if (sh4->log_reg_access) {
+  if (sh4->log_regs) {
     LOG_INFO("sh4_reg_read addr=0x%08x data=0x%x", addr, data);
   }
 
@@ -29,7 +29,7 @@ static void sh4_reg_write(struct sh4 *sh4, uint32_t addr, uint32_t data,
   uint32_t offset = SH4_REG_OFFSET(addr);
   reg_write_cb write = sh4_cb[offset].write;
 
-  if (sh4->log_reg_access) {
+  if (sh4->log_regs) {
     LOG_INFO("sh4_reg_write addr=0x%08x data=0x%x", addr, data & mask);
   }
 
diff --git a/src/guest/sh4/sh4_tmu.c b/src/guest/sh4/sh4_tmu.c
index e02f22c6..3895566d 100644
--- a/src/guest/sh4/sh4_tmu.c
+++ b/src/guest/sh4/sh4_tmu.c
@@ -1,5 +1,7 @@
+#include "guest/sh4/sh4_tmu.h"
 #include "guest/scheduler.h"
 #include "guest/sh4/sh4.h"
+#include "imgui.h"
 
 static const int64_t PERIPHERAL_CLOCK_FREQ = SH4_CLOCK_FREQ >> 2;
 static const int PERIPHERAL_SCALE[] = {2, 4, 6, 8, 10, 0, 0, 0};
@@ -133,6 +135,44 @@ static void sh4_tmu_update_tcnt(struct sh4 *sh4, uint32_t n) {
   }
 }
 
+#ifdef HAVE_IMGUI
+void sh4_tmu_debug_menu(struct sh4 *sh4) {
+  if (igBegin("tmu stats", NULL, 0)) {
+    igColumns(6, NULL, 0);
+
+    igText("#");
+    igNextColumn();
+    igText("started");
+    igNextColumn();
+    igText("count");
+    igNextColumn();
+    igText("control");
+    igNextColumn();
+    igText("reset count");
+    igNextColumn();
+    igText("underflowed");
+    igNextColumn();
+
+    for (int i = 0; i < 3; i++) {
+      igText("%d", i);
+      igNextColumn();
+      igText(TSTR(i) ? "yes" : "no");
+      igNextColumn();
+      igText("0x%08x", sh4_tmu_tcnt(sh4, i));
+      igNextColumn();
+      igText("0x%08x", TCR(i));
+      igNextColumn();
+      igText("0x%08x", TCOR(i));
+      igNextColumn();
+      igText("0x%x", TUNI(i));
+      igNextColumn();
+    }
+
+    igEnd();
+  }
+}
+#endif
+
 REG_W32(sh4_cb, TSTR) {
   struct sh4 *sh4 = dc->sh4;
   *sh4->TSTR = value;
diff --git a/src/guest/sh4/sh4_tmu.h b/src/guest/sh4/sh4_tmu.h
new file mode 100644
index 00000000..5c16a5f0
--- /dev/null
+++ b/src/guest/sh4/sh4_tmu.h
@@ -0,0 +1,8 @@
+#ifndef SH4_TMU_H
+#define SH4_TMU_H
+
+struct sh4;
+
+void sh4_tmu_debug_menu(struct sh4 *sh4);
+
+#endif