- unsigned int tbl, tbu0, tbu1;
- unsigned long long ret;
+ unsigned int tbl, tbu0, tbu1;
+ unsigned long long ret;
+
+ do {
+ if (arch_flags & ARCH_FLAG_1) {
+ tbu0 = mfspr(SPRN_ATBU);
+ tbl = mfspr(SPRN_ATBL);
+ tbu1 = mfspr(SPRN_ATBU);
+ } else {
+ tbu0 = mfspr(SPRN_TBRU);
+ tbl = mfspr(SPRN_TBRL);
+ tbu1 = mfspr(SPRN_TBRU);
+ }
+ } while (tbu0 != tbu1);
+
+ ret = (((unsigned long long)tbu0) << 32) | tbl;
+ return ret;
+}
+
+static void atb_child(void)
+{
+ arch_flags |= ARCH_FLAG_1;
+ get_cpu_clock();
+ _exit(0);
+}
+
+static void atb_clocktest(void)
+{
+ pid_t pid;