From: Dmitriy Zavin <dmitriyz@google.com>
To: linux-kernel@vger.kernel.org
Cc: ak@suse.de, akpm@osdl.org
Subject: [PATCH 0/4 v2] therm_throt: Refactor thermal throttle processing, and keep a total count of events.
Date: Thu, 21 Sep 2006 17:48:00 -0700 [thread overview]
Message-ID: <11588860842488-git-send-email-dmitriyz@google.com> (raw)
This patch-set factors out the thermal throttle processing code
from i386 and x86_64 into a separate file (therm_throt.c).
This allows consistent reporting of CPU thermal throttle events.
Furthermore, a counter is added to /sys that keeps track of the
number of thermal events, such that the user knows how bad the
thermal problem might be (since the logging to syslog and mcelog
is rate limited).
Tested on 32bit and 64bit Intel P4 Xeons.
Differences from last cut:
- No more #ifdef CONFIG_X86_64.. sorry Andi :). x86_64 specific
code is in arch/x86_64/kernel/mce.c
- Commented the need/use for time_before64/time_after64.
(I addressed Andi Kleen's concern about these macros in a
followup from last attempt, but never got a response.)
- More comments in therm_throt.c and individual patch descriptions
arch/i386/kernel/cpu/mcheck/Makefile | 2
arch/i386/kernel/cpu/mcheck/p4.c | 26 +---
arch/i386/kernel/cpu/mcheck/therm_throt.c | 171 ++++++++++++++++++++++++++++++
arch/x86_64/kernel/Makefile | 4
arch/x86_64/kernel/mce.c | 27 ++++
arch/x86_64/kernel/mce_intel.c | 30 +----
include/asm-i386/therm_throt.h | 9 +
include/asm-x86_64/mce.h | 4
include/asm-x86_64/therm_throt.h | 1
include/linux/jiffies.h | 15 ++
10 files changed, 248 insertions(+), 41 deletions(-)
next reply other threads:[~2006-09-22 0:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-22 0:48 Dmitriy Zavin [this message]
2006-09-22 0:48 ` [PATCH 1/4] x86_64/i386 therm mce: Refactor thermal throttle processing Dmitriy Zavin
2006-09-22 0:48 ` [PATCH 2/4] jiffies: Add 64bit jiffies compares (for use with get_jiffies_64) Dmitriy Zavin
2006-09-22 0:48 ` [PATCH 3/4] therm_throt: Make the jiffies compares use the 64bit safe macros Dmitriy Zavin
2006-09-22 0:48 ` [PATCH 4/4] therm_throt: Add a cumulative thermal throttle event counter Dmitriy Zavin
2006-09-22 5:51 ` Andi Kleen
2006-09-22 5:50 ` [PATCH 1/4] x86_64/i386 therm mce: Refactor thermal throttle processing Andi Kleen
2006-09-22 5:49 ` [PATCH 0/4 v2] therm_throt: Refactor thermal throttle processing, and keep a total count of events Andi Kleen
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