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Date: Fri, 16 Apr 2010 11:11:45 +0200 From: Michal Simek <michal.simek@...alogix.com> To: Arnd Bergmann <arnd@...db.de> CC: wuzhangjin@...il.com, Steven Rostedt <rostedt@...dmis.org>, Thomas Gleixner <tglx@...utronix.de>, LKML <linux-kernel@...r.kernel.org> Subject: Re: sched_clock - microblaze Arnd Bergmann wrote: > On Friday 16 April 2010, Michal Simek wrote: >> Why is sched_clock called in init_idle? Do you get any non zero value on >> any ARCH? > > Yes, some architectures return a real-time value here that starts before boot. > Also, when the clock starts at boot time, there can be a significant time > spent in the firmware and early kernel code before we get to init_idle. ok. I will return 0 before timer initialization. Thanks for explanation, Michal > > Arnd -- Michal Simek, Ing. (M.Eng) PetaLogix - Linux Solutions for a Reconfigurable World w: www.petalogix.com p: +61-7-30090663,+42-0-721842854 f: +61-7-30090663 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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