X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=frontend%2Fpcnt.h;h=3969aa4ec7688d17e3a6ab8db30c3d8aafea3da5;hb=6e1a0c4dc569a9635344e42e2f9e973f0b9ab6d5;hp=232ae07766dc8db3815b528fd03ed57915c57f0a;hpb=fc42805bfb38d33e23b4eddb115cf9ab88a4345a;p=pcsx_rearmed.git

diff --git a/frontend/pcnt.h b/frontend/pcnt.h
index 232ae077..3969aa4e 100644
--- a/frontend/pcnt.h
+++ b/frontend/pcnt.h
@@ -83,6 +83,19 @@ static inline unsigned int pcnt_get(void)
 	return val;
 }
 
+static inline void pcnt_init(void)
+{
+#ifdef __ARM_ARCH_7A__
+	int v;
+	asm volatile("mrc p15, 0, %0, c9, c12, 0" : "=r"(v));
+	v |= 5; // master enable, ccnt reset
+	v &= ~8; // ccnt divider 0
+	asm volatile("mcr p15, 0, %0, c9, c12, 0" :: "r"(v));
+	// enable cycle counter
+	asm volatile("mcr p15, 0, %0, c9, c12, 1" :: "r"(1<<31));
+#endif
+}
+
 #else
 
 #define pcnt_start(id)