From: Adrian Hunter <adrian.hunter@intel.com>
To: George Spelvin <linux@horizon.com>
Cc: tglx@linutronix.de, ak@linux.intel.com, hpa@zytor.com,
linux-kernel@vger.kernel.org, luto@amacapital.net,
mingo@kernel.org, torvalds@linux-foundation.org
Subject: Re: Discussion: quick_pit_calibrate is slow
Date: Wed, 10 Jun 2015 11:13:07 +0300 [thread overview]
Message-ID: <5577F193.70702@intel.com> (raw)
In-Reply-To: <20150610070842.4980.qmail@ns.horizon.com>
On 10/06/15 10:08, George Spelvin wrote:
> The 8254 timer latches the msbyte when the lsbyte is read
> and returns the latched value on the next read
Are you sure about? The docs I've read don't seem to say that.
next prev parent reply other threads:[~2015-06-10 8:15 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-03 6:27 [PATCH RFC] x86, tsc: Allow for high latency in quick_pit_calibrate() George Spelvin
2015-06-03 18:29 ` George Spelvin
2015-06-03 18:48 ` H. Peter Anvin
2015-06-03 19:07 ` George Spelvin
2015-06-04 16:38 ` George Spelvin
2015-06-04 16:52 ` Linus Torvalds
2015-06-04 17:54 ` George Spelvin
2015-06-04 18:07 ` Linus Torvalds
2015-06-05 5:52 ` George Spelvin
2015-06-05 6:16 ` Ingo Molnar
2015-06-05 5:58 ` Ingo Molnar
2015-06-05 8:24 ` George Spelvin
2015-06-05 8:31 ` Ingo Molnar
2015-06-05 20:17 ` George Spelvin
2015-06-06 21:50 ` George Spelvin
2015-06-09 6:54 ` [RFC PATCH] Make quick_pit_calibrate more robust George Spelvin
2015-06-09 9:13 ` Adrian Hunter
2015-06-09 9:54 ` George Spelvin
2015-06-10 7:08 ` Discussion: quick_pit_calibrate is slow George Spelvin
2015-06-10 7:30 ` Ingo Molnar
2015-06-10 8:47 ` George Spelvin
2015-06-10 9:25 ` Ingo Molnar
2015-06-10 15:43 ` George Spelvin
2015-06-10 15:56 ` Arjan van de Ven
2015-06-10 16:27 ` George Spelvin
2015-06-10 18:38 ` George Spelvin
2015-06-10 19:30 ` Arjan van de Ven
2015-06-10 22:19 ` George Spelvin
2015-06-10 8:13 ` Adrian Hunter [this message]
2015-06-10 8:55 ` George Spelvin
2015-06-10 9:12 ` Ingo Molnar
2015-06-10 16:11 ` George Spelvin
2015-06-10 7:32 ` Discussion: quick_pit_calibrate isn't quick George Spelvin
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