+/* MATH */
+
+static inline unsigned int hweight32(unsigned int w)
+{
+ unsigned int res = w - ((w >> 1) & 0x55555555);
+ res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
+ res = (res + (res >> 4)) & 0x0F0F0F0F;
+ res = res + (res >> 8);
+ return (res + (res >> 16)) & 0x000000FF;
+}
+
+static inline int fls(int x)
+{
+ int r;
+//ust// #ifdef CONFIG_X86_CMOV
+ asm("bsrl %1,%0\n\t"
+ "cmovzl %2,%0"
+ : "=&r" (r) : "rm" (x), "rm" (-1));
+//ust// #else
+//ust// asm("bsrl %1,%0\n\t"
+//ust// "jnz 1f\n\t"
+//ust// "movl $-1,%0\n"
+//ust// "1:" : "=r" (r) : "rm" (x));
+//ust// #endif
+ return r + 1;
+}
+
+static __inline__ int get_count_order(unsigned int count)
+{
+ int order;
+
+ order = fls(count) - 1;
+ if (count & (count - 1))
+ order++;
+ return order;
+}
+
+
+/* ARRAYS */
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+
+/* TRACE CLOCK */
+
+static inline u64 trace_clock_read64(void)
+{
+ return 0LL;
+}
+
+static inline unsigned int trace_clock_frequency(void)
+{
+ return 0LL;
+}
+
+static inline u32 trace_clock_freq_scale(void)
+{
+ return 0;
+}
+