* + sched_clock-document-4mhz-vs-1mhz-decision.patch added to -mm tree
@ 2013-08-28 21:14 akpm
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From: akpm @ 2013-08-28 21:14 UTC (permalink / raw)
To: mm-commits, voice.shen, tglx, rmk, sboyd
Subject: + sched_clock-document-4mhz-vs-1mhz-decision.patch added to -mm tree
To: sboyd@codeaurora.org,rmk@arm.linux.org.uk,tglx@linutronix.de,voice.shen@atmel.com
From: akpm@linux-foundation.org
Date: Wed, 28 Aug 2013 14:14:10 -0700
The patch titled
Subject: sched_clock: document 4Mhz vs 1Mhz decision
has been added to the -mm tree. Its filename is
sched_clock-document-4mhz-vs-1mhz-decision.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/sched_clock-document-4mhz-vs-1mhz-decision.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/sched_clock-document-4mhz-vs-1mhz-decision.patch
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------------------------------------------------------
From: Stephen Boyd <sboyd@codeaurora.org>
Subject: sched_clock: document 4Mhz vs 1Mhz decision
Bo Shen sent a patch to change this to 1Mhz instead of 4Mhz but according
to Russell King the use of 4Mhz was intentional. Add a comment to this
effect so that others don't try to change the code as well.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Bo Shen <voice.shen@atmel.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
kernel/time/sched_clock.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN kernel/time/sched_clock.c~sched_clock-document-4mhz-vs-1mhz-decision kernel/time/sched_clock.c
--- a/kernel/time/sched_clock.c~sched_clock-document-4mhz-vs-1mhz-decision
+++ a/kernel/time/sched_clock.c
@@ -128,6 +128,10 @@ void __init setup_sched_clock(u32 (*read
clocks_calc_mult_shift(&cd.mult, &cd.shift, rate, NSEC_PER_SEC, 0);
r = rate;
+ /*
+ * Use 4MHz instead of 1MHz so that things like 1.832Mhz show as
+ * 1832Khz
+ */
if (r >= 4000000) {
r /= 1000000;
r_unit = 'M';
_
Patches currently in -mm which might be from sboyd@codeaurora.org are
drivers-iommu-remove-unnecessary-platform_set_drvdata.patch
sched_clock-document-4mhz-vs-1mhz-decision.patch
panic-call-panic-handlers-before-kmsg_dump.patch
linux-next.patch
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2013-08-28 21:14 + sched_clock-document-4mhz-vs-1mhz-decision.patch added to -mm tree akpm
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