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
next prev parent 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
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