Implement cpu_get_real_ticks for Alpha.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

diff --git a/qemu-timer.h b/qemu-timer.h
index 62da887584a7b56eb80e0cd7072553cdee5cf5a8..1494f7940612fb97c85a886b939686931b446e86 100644 (file)
--- a/qemu-timer.h
+++ b/qemu-timer.h
@@ -209,6 +209,19 @@ static inline int64_t cpu_get_real_ticks(void)
     return (int64_t)(count * cyc_per_count);
 }
 
+#elif defined(__alpha__)
+
+static inline int64_t cpu_get_real_ticks(void)
+{
+    uint64_t cc;
+    uint32_t cur, ofs;
+
+    asm volatile("rpcc %0" : "=r"(cc));
+    cur = cc;
+    ofs = cc >> 32;
+    return cur - ofs;
+}
+
 #else
 /* The host CPU doesn't have an easily accessible cycle counter.
    Just return a monotonically increasing value.  This will be