basic profiling

3 files changed, 127 insertions, 0 deletions

diff --git a/frontend/main.c b/frontend/main.c
index e36ad48..884b617 100644
--- a/frontend/main.c
+++ b/frontend/main.c
@@ -14,6 +14,7 @@
 #include <unistd.h>
 
 #include "plugin.h"
+#include "pcnt.h"
 #include "../gui/Linux.h"
 #include "../libpcsxcore/misc.h"
 
@@ -192,6 +193,7 @@ int main(int argc, char *argv[])
 			SysMessage("Failed loading plugins!");
 			return 1;
 		}
+		pcnt_hook_plugins();
 
 		if (OpenPlugins() == -1) {
 			return 1;
diff --git a/frontend/pcnt.h b/frontend/pcnt.h
new file mode 100644
index 0000000..57bc88a
--- /dev/null
+++ b/frontend/pcnt.h
@@ -0,0 +1,52 @@
+
+enum pcounters {
+	PCNT_ALL,
+	PCNT_GPU,
+	PCNT_SPU,
+	PCNT_CNT
+};
+
+extern unsigned int pcounters[PCNT_CNT];
+extern unsigned int pcounter_starts[PCNT_CNT];
+
+#define pcnt_start(id) \
+	pcounter_starts[id] = pcnt_get()
+
+#define pcnt_end(id) \
+	pcounters[id] += pcnt_get() - pcounter_starts[id]
+
+void pcnt_hook_plugins(void);
+
+static inline void pcnt_print(float fps)
+{
+	unsigned int total, gpu, spu, rem;
+	int i;
+
+	for (i = 0; i < PCNT_CNT; i++)
+		pcounters[i] >>= 10;
+
+	total = pcounters[PCNT_ALL];
+	gpu = pcounters[PCNT_GPU];
+	spu = pcounters[PCNT_SPU];
+	rem = total - gpu - spu;
+	if (!total)
+		total++;
+
+	printf("%2.1f %6u %6u %6u (%2d %2d %2d)\n", fps, gpu, spu, rem,
+		gpu * 100 / total, spu * 100 / total, rem * 100 / total);
+
+	memset(pcounters, 0, sizeof(pcounters));
+}
+
+static inline unsigned int pcnt_get(void)
+{
+	unsigned int val;
+#ifdef __ARM_ARCH_7A__
+	__asm__ volatile("mrc p15, 0, %0, c9, c13, 0"
+			 : "=r"(val));
+#else
+	val = 0;
+#endif
+	return val;
+}
+
diff --git a/frontend/plugin.c b/frontend/plugin.c
index bea6eb5..d6aca8a 100644
--- a/frontend/plugin.c
+++ b/frontend/plugin.c
@@ -199,3 +199,76 @@ void *plugin_link(enum builtint_plugins_e id, const char *sym)
 	return NULL;
 }
 
+/* basic profile stuff */
+#include "pcnt.h"
+
+unsigned int pcounters[PCNT_CNT];
+unsigned int pcounter_starts[PCNT_CNT];
+
+#define pc_hook_func(name, args, pargs, cnt) \
+extern void (*name) args; \
+static void (*o_##name) args; \
+static void w_##name args \
+{ \
+	unsigned int pc_start = pcnt_get(); \
+	o_##name pargs; \
+	pcounters[cnt] += pcnt_get() - pc_start; \
+}
+
+#define pc_hook_func_ret(retn, name, args, pargs, cnt) \
+extern retn (*name) args; \
+static retn (*o_##name) args; \
+static retn w_##name args \
+{ \
+	retn ret; \
+	unsigned int pc_start = pcnt_get(); \
+	ret = o_##name pargs; \
+	pcounters[cnt] += pcnt_get() - pc_start; \
+	return ret; \
+}
+
+pc_hook_func              (GPU_writeStatus, (uint32_t a0), (a0), PCNT_GPU)
+pc_hook_func              (GPU_writeData, (uint32_t a0), (a0), PCNT_GPU)
+pc_hook_func              (GPU_writeDataMem, (uint32_t *a0, int a1), (a0, a1), PCNT_GPU)
+pc_hook_func_ret(uint32_t, GPU_readStatus, (void), (), PCNT_GPU)
+pc_hook_func_ret(uint32_t, GPU_readData, (void), (), PCNT_GPU)
+pc_hook_func              (GPU_readDataMem, (uint32_t *a0, int a1), (a0, a1), PCNT_GPU)
+pc_hook_func_ret(long,     GPU_dmaChain, (uint32_t *a0, int32_t a1), (a0, a1), PCNT_GPU)
+pc_hook_func              (GPU_updateLace, (void), (), PCNT_GPU)
+
+pc_hook_func              (SPU_writeRegister, (unsigned long a0, unsigned short a1), (a0, a1), PCNT_SPU)
+pc_hook_func_ret(unsigned short,SPU_readRegister, (unsigned long a0), (a0), PCNT_SPU)
+pc_hook_func              (SPU_writeDMA, (unsigned short a0), (a0), PCNT_SPU)
+pc_hook_func_ret(unsigned short,SPU_readDMA, (void), (), PCNT_SPU)
+pc_hook_func              (SPU_writeDMAMem, (unsigned short *a0, int a1), (a0, a1), PCNT_SPU)
+pc_hook_func              (SPU_readDMAMem, (unsigned short *a0, int a1), (a0, a1), PCNT_SPU)
+pc_hook_func              (SPU_playADPCMchannel, (void *a0), (a0), PCNT_SPU)
+pc_hook_func              (SPU_async, (unsigned int a0), (a0), PCNT_SPU)
+pc_hook_func              (SPU_playCDDAchannel, (short *a0, int a1), (a0, a1), PCNT_SPU)
+
+#define hook_it(name) { \
+	o_##name = name; \
+	name = w_##name; \
+}
+
+void pcnt_hook_plugins(void)
+{
+	hook_it(GPU_writeStatus);
+	hook_it(GPU_writeData);
+	hook_it(GPU_writeDataMem);
+	hook_it(GPU_readStatus);
+	hook_it(GPU_readData);
+	hook_it(GPU_readDataMem);
+	hook_it(GPU_dmaChain);
+	hook_it(GPU_updateLace);
+	hook_it(SPU_writeRegister);
+	hook_it(SPU_readRegister);
+	hook_it(SPU_writeDMA);
+	hook_it(SPU_readDMA);
+	hook_it(SPU_writeDMAMem);
+	hook_it(SPU_readDMAMem);
+	hook_it(SPU_playADPCMchannel);
+	hook_it(SPU_async);
+	hook_it(SPU_playCDDAchannel);
+}
+