From: John Stultz <john.stultz@linaro.org>
To: lkml <linux-kernel@vger.kernel.org>
Cc: John Stultz <john.stultz@linaro.org>,
Dave Jones <davej@codemonkey.org.uk>,
Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Richard Cochran <richardcochran@gmail.com>,
Prarit Bhargava <prarit@redhat.com>,
Stephen Boyd <sboyd@codeaurora.org>,
Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <peterz@infradead.org>
Subject: [PATCH 11/12] clocksource: Add some debug info about clocksources being registered
Date: Wed, 11 Mar 2015 21:16:39 -0700 [thread overview]
Message-ID: <1426133800-29329-12-git-send-email-john.stultz@linaro.org> (raw)
In-Reply-To: <1426133800-29329-1-git-send-email-john.stultz@linaro.org>
Print the mask, max_cycles, and max_idle_ns values for clocksources
being registered.
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
kernel/time/clocksource.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index e31bd60..757d770 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -704,6 +704,9 @@ void __clocksource_updatefreq_scale(struct clocksource *cs, u32 scale, u32 freq)
cs->name);
clocksource_update_max_deferment(cs);
+
+ pr_info("clocksource %s: mask: 0x%llx max_cycles: 0x%llx, max_idle_ns: %lld ns\n",
+ cs->name, cs->mask, cs->max_cycles, cs->max_idle_ns);
}
EXPORT_SYMBOL_GPL(__clocksource_updatefreq_scale);
--
1.9.1
next prev parent reply other threads:[~2015-03-12 4:18 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-12 4:16 [PATCH 00/12] Increased clocksource validation and cleanups (v4) John Stultz
2015-03-12 4:16 ` [PATCH 01/12] clocksource: Simplify clocks_calc_max_nsecs logic John Stultz
2015-03-13 9:01 ` [tip:timers/core] clocksource: Simplify the clocks_calc_max_nsecs () logic tip-bot for John Stultz
2015-03-12 4:16 ` [PATCH 02/12] clocksource: Simplify logic around clocksource wrapping safety margins John Stultz
2015-03-12 5:55 ` Ingo Molnar
2015-03-13 9:01 ` [tip:timers/core] clocksource: Simplify the " tip-bot for John Stultz
2015-03-12 4:16 ` [PATCH 03/12] clocksource: Add max_cycles to clocksource structure John Stultz
2015-03-13 9:01 ` [tip:timers/core] clocksource: Add 'max_cycles' to ' struct clocksource' tip-bot for John Stultz
2015-03-12 4:16 ` [PATCH 04/12] time: Add debugging checks to warn if we see delays John Stultz
2015-03-12 6:32 ` Ingo Molnar
2015-03-13 9:02 ` [tip:timers/core] timekeeping: " tip-bot for John Stultz
2015-03-12 4:16 ` [PATCH 05/12] time: Add infrastructure to cap clocksource reads to the max_cycles value John Stultz
2015-03-13 9:02 ` [tip:timers/core] timekeeping: Add checks to cap clocksource reads to the 'max_cycles' value tip-bot for John Stultz
2015-03-12 4:16 ` [PATCH 06/12] time: Try to catch clocksource delta underflows John Stultz
2015-03-13 9:02 ` [tip:timers/core] timekeeping: " tip-bot for John Stultz
2015-03-12 4:16 ` [PATCH 07/12] time: Add warnings when overflows or underflows are observed John Stultz
2015-03-12 7:37 ` Ingo Molnar
2015-03-13 9:03 ` [tip:timers/core] timekeeping: " tip-bot for John Stultz
2015-03-12 4:16 ` [PATCH 08/12] clocksource: Improve clocksource watchdog reporting John Stultz
2015-03-13 9:03 ` [tip:timers/core] " tip-bot for John Stultz
2015-03-12 4:16 ` [PATCH 09/12] clocksource: Mostly kill clocksource_register() John Stultz
2015-03-13 9:03 ` [tip:timers/core] " tip-bot for John Stultz
2015-03-12 4:16 ` [PATCH 10/12] sparc: Convert to using clocksource_register_hz() John Stultz
2015-03-13 9:04 ` [tip:timers/core] clocksource, sparc32: " tip-bot for John Stultz
2015-03-12 4:16 ` John Stultz [this message]
2015-03-13 9:04 ` [tip:timers/core] clocksource: Add some debug info about clocksources being registered tip-bot for John Stultz
2015-03-12 4:16 ` [PATCH 12/12] clocksource: Rename __clocksource_updatefreq_* to __clocksource_update_freq_* John Stultz
2015-03-13 9:04 ` [tip:timers/core] clocksource: Rename __clocksource_updatefreq_*( ) to __clocksource_update_freq_*() tip-bot for John Stultz
2015-03-12 9:19 ` [PATCH 00/12] Increased clocksource validation and cleanups (v4) Ingo Molnar
2015-03-12 16:26 ` John Stultz
2015-03-13 8:58 ` Ingo Molnar
2015-03-13 17:54 ` John Stultz
2015-03-16 8:28 ` Ingo Molnar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1426133800-29329-12-git-send-email-john.stultz@linaro.org \
--to=john.stultz@linaro.org \
--cc=davej@codemonkey.org.uk \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=peterz@infradead.org \
--cc=prarit@redhat.com \
--cc=richardcochran@gmail.com \
--cc=sboyd@codeaurora.org \
--cc=tglx@linutronix.de \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®