Re: [PATCH] New x86_64 time code for 2.5.70
Mika Penttilä (mika.penttila@kolumbus.fi)
Thu, 12 Jun 2003 00:32:01 +0300
/*
+ * Read the period, compute tick and quotient.
+ */
+
+ id = hpet_readl(HPET_ID);
+
+ if (!(id & HPET_ID_VENDOR) || !(id & HPET_ID_NUMBER) ||
+ !(id & HPET_ID_LEGSUP))
+ return -1;
+
+ hpet_period = hpet_readl(HPET_PERIOD);
+ if (hpet_period < 100000 || hpet_period > 100000000)
+ return -1;
+
Line below seems to be wrong, given hpet period is in fsecs.
+ hpet_tick = (tick_nsec + hpet_period / 2) / hpet_period;
--Mika
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/