public inbox for linux-acpi@vger.kernel.org
 help / color / mirror / Atom feed
From: Thomas Renninger <trenn@suse.de>
Cc: Thomas Renninger <trenn@suse.de>,
	arjan@linux.intel.com, lenb@kernel.org,
	linux-acpi@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 2/8] cpuidle: Rename X86 specific idle poll state[0] from C0 to CPUIDLE
Date: Thu,  2 Dec 2010 17:42:22 +0100	[thread overview]
Message-ID: <1291308148-28628-3-git-send-email-trenn@suse.de> (raw)
In-Reply-To: <1291308148-28628-2-git-send-email-trenn@suse.de>

C0 means and is well know as "not idle".
All documentation out there uses this term as "running"/"not idle"
state. Also Linux userspace tools (e.g. cpufreq-aperf and turbostat)
show C0 residency which there is correct, but means something totally
else than cpuidle "POLL" state.


Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: arjan@linux.intel.com
CC: lenb@kernel.org
CC: linux-acpi@vger.kernel.org
CC: Ingo Molnar <mingo@elte.hu>
CC: linux-kernel@vger.kernel.org
---
 drivers/cpuidle/cpuidle.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 08d5f05..99cc8fc 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -260,7 +260,7 @@ static void poll_idle_init(struct cpuidle_device *dev)
 
 	cpuidle_set_statedata(state, NULL);
 
-	snprintf(state->name, CPUIDLE_NAME_LEN, "C0");
+	snprintf(state->name, CPUIDLE_NAME_LEN, "POLL");
 	snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
 	state->exit_latency = 0;
 	state->target_residency = 0;
-- 
1.6.0.2


  reply	other threads:[~2010-12-02 16:42 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1291308148-28628-1-git-send-email-trenn@suse.de>
2010-12-02 16:42 ` [PATCH 1/8] acpi: Use ACPI C-state type instead of enumeration value to export cpuidle state name Thomas Renninger
2010-12-02 16:42   ` Thomas Renninger [this message]
2010-12-02 16:42     ` [PATCH 3/8] X86/perf: fix power:cpu_idle double end events and throw cpu_idle events from the cpuidle layer Thomas Renninger
2010-12-02 16:42       ` [PATCH 4/8] X86: Cleanup idle= internal variables by getting rid of idle_halt idle_nomwait Thomas Renninger
2010-12-02 16:42         ` [PATCH 5/8] cpuidle: Introduce .abbr (abbrevation) for cpuidle states Thomas Renninger
2010-12-02 16:42           ` [PATCH 6/8] acpi: processor->cpuidle: Only set cpuidle check_bm flag if pr->flags.bm_check is set Thomas Renninger
2010-12-02 16:42             ` [PATCH 7/8] perf timechart: Map power:cpu_idle events to the corresponding cpuidle state Thomas Renninger
2010-12-02 16:51               ` Thomas Renninger
2010-12-02 17:33           ` [PATCH 5/8] cpuidle: Introduce .abbr (abbrevation) for cpuidle states Bjorn Helgaas
2010-12-02 17:31     ` [PATCH 2/8] cpuidle: Rename X86 specific idle poll state[0] from C0 to CPUIDLE Bjorn Helgaas

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=1291308148-28628-3-git-send-email-trenn@suse.de \
    --to=trenn@suse.de \
    --cc=arjan@linux.intel.com \
    --cc=lenb@kernel.org \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@elte.hu \
    /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