From: Mark Langsdorf <mark.langsdorf@calxeda.com>
To: linux-kernel@vger.kernel.org
Cc: Mark Langsdorf <mark.langsdorf@calxeda.com>,
cpufreq@vger.kernel.org, "Rafael J. Wysocki" <rjw@sisk.pl>
Subject: [PATCH 3/6] cpufreq: tolerate inexact values when collecting stats
Date: Tue, 30 Oct 2012 16:04:13 -0500 [thread overview]
Message-ID: <1351631056-25938-4-git-send-email-mark.langsdorf@calxeda.com> (raw)
In-Reply-To: <1351631056-25938-1-git-send-email-mark.langsdorf@calxeda.com>
Allow frequency values to vary by +/-5000 Hz when collecting stats.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Cc: cpufreq@vger.kernel.org
Cc: Rafael J. Wysocki <rjw@sisk.pl>
---
drivers/cpufreq/cpufreq_stats.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 3998316..4e2ea7e 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -158,9 +158,11 @@ static struct attribute_group stats_attr_group = {
static int freq_table_get_index(struct cpufreq_stats *stat, unsigned int freq)
{
int index;
- for (index = 0; index < stat->max_state; index++)
- if (stat->freq_table[index] == freq)
+ for (index = 0; index < stat->max_state; index++) {
+ if ((stat->freq_table[index] < (freq + 5000)) &&
+ (stat->freq_table[index] > (freq - 5000)))
return index;
+ }
return -1;
}
@@ -251,6 +253,8 @@ static int cpufreq_stats_create_table(struct cpufreq_policy *policy,
spin_lock(&cpufreq_stats_lock);
stat->last_time = get_jiffies_64();
stat->last_index = freq_table_get_index(stat, policy->cur);
+ if (stat->last_index > stat->max_state)
+ stat->last_index = stat->max_state - 1;
spin_unlock(&cpufreq_stats_lock);
cpufreq_cpu_put(data);
return 0;
--
1.7.11.7
next prev parent reply other threads:[~2012-10-30 21:06 UTC|newest]
Thread overview: 142+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-30 21:04 [PATCH 0/6] cpufreq: add support for Calxeda ECX-1000 (highbank) Mark Langsdorf
2012-10-30 21:04 ` [PATCH 1/6] arm: use devicetree to get smp_twd clock Mark Langsdorf
2012-10-30 21:04 ` [PATCH 2/6] clk, highbank: remove non-bypass reset mode Mark Langsdorf
2012-10-30 21:04 ` Mark Langsdorf [this message]
2012-10-30 21:04 ` [PATCH 4/6] arm highbank: add support for pl320 IPC Mark Langsdorf
2012-10-30 21:04 ` [PATCH 5/6] power: export opp cpufreq functions Mark Langsdorf
2012-10-31 1:17 ` Nishanth Menon
2012-10-30 21:04 ` [PATCH 6/6] cpufreq, highbank: add support for highbank cpufreq Mark Langsdorf
2012-10-31 0:21 ` [PATCH 0/6] cpufreq: add support for Calxeda ECX-1000 (highbank) Rafael J. Wysocki
2012-11-02 18:51 ` [PATCH 0/6 v2] " Mark Langsdorf
2012-11-02 18:51 ` [PATCH 1/6 v2] arm: use devicetree to get smp_twd clock Mark Langsdorf
2012-11-04 10:08 ` Russell King - ARM Linux
2012-11-05 22:28 ` Mark Langsdorf
2012-11-05 22:31 ` Russell King - ARM Linux
2012-11-05 22:49 ` Mark Langsdorf
2012-11-02 18:51 ` [PATCH 2/6 v2] clk, highbank: remove non-bypass reset mode Mark Langsdorf
2012-11-02 18:51 ` [PATCH 3/6 v2] cpufreq: tolerate inexact values when collecting stats Mark Langsdorf
2012-11-02 18:51 ` [PATCH 4/6 v2] arm highbank: add support for pl320 IPC Mark Langsdorf
2012-11-02 18:51 ` [PATCH 5/6 v2] power: export opp cpufreq functions Mark Langsdorf
2012-11-02 18:51 ` [PATCH 6/6 v2] cpufreq, highbank: add support for highbank cpufreq Mark Langsdorf
2012-11-02 21:45 ` [PATCH 0/6 v2] cpufreq: add support for Calxeda ECX-1000 (highbank) Rafael J. Wysocki
2012-11-06 20:18 ` [PATCH 0/6 v3] " Mark Langsdorf
2012-11-06 20:18 ` [PATCH 1/6 v3] arm: use devicetree to get smp_twd clock Mark Langsdorf
2012-11-06 20:18 ` [PATCH 2/6 v3] clk, highbank: remove non-bypass reset mode Mark Langsdorf
2012-11-06 20:18 ` [PATCH 3/6 v3] cpufreq: tolerate inexact values when collecting stats Mark Langsdorf
2012-11-06 20:18 ` [PATCH 4/6 v3] arm highbank: add support for pl320 IPC Mark Langsdorf
2012-11-06 20:18 ` [PATCH 5/6 v3] power: export opp cpufreq functions Mark Langsdorf
2012-11-06 20:18 ` [PATCH 6/6 v3] cpufreq, highbank: add support for highbank cpufreq Mark Langsdorf
2012-11-07 18:11 ` [PATCH 0/6 v3] cpufreq: add support for Calxeda ECX-1000 (highbank) Mark Langsdorf
2012-11-07 18:32 ` [PATCH 0/6 v4] " Mark Langsdorf
2012-11-07 18:32 ` [PATCH 1/6 v4] arm: use devicetree to get smp_twd clock Mark Langsdorf
2012-11-07 18:32 ` [PATCH 2/6 v4] clk, highbank: Prevent glitches in non-bypass reset mode Mark Langsdorf
2012-11-12 21:24 ` Mike Turquette
2012-11-12 21:35 ` Mark Langsdorf
2012-11-07 18:32 ` [PATCH 3/6 v4] cpufreq: tolerate inexact values when collecting stats Mark Langsdorf
2012-11-11 16:38 ` Borislav Petkov
2012-11-12 16:35 ` Mark Langsdorf
2012-11-13 16:24 ` Borislav Petkov
2012-11-13 16:33 ` Mark Langsdorf
2012-11-13 19:13 ` Mark Langsdorf
2012-11-17 14:50 ` Borislav Petkov
2012-11-24 10:05 ` Rafael J. Wysocki
2012-11-26 13:57 ` Mark Langsdorf
2012-11-26 15:25 ` Rafael J. Wysocki
2012-11-07 18:32 ` [PATCH 4/6 v4] arm highbank: add support for pl320 IPC Mark Langsdorf
2012-11-14 14:03 ` Rob Herring
2012-11-07 18:32 ` [PATCH 5/6 v4] power: export opp cpufreq functions Mark Langsdorf
2012-11-07 18:32 ` [PATCH 6/6 v4] cpufreq, highbank: add support for highbank cpufreq Mark Langsdorf
2012-11-07 18:51 ` Rob Herring
2012-11-24 10:07 ` [PATCH 0/6 v4] cpufreq: add support for Calxeda ECX-1000 (highbank) Rafael J. Wysocki
2012-11-27 15:04 ` [PATCH 0/6 v5] " Mark Langsdorf
2012-11-27 15:04 ` [PATCH 1/6 v5] arm: use devicetree to get smp_twd clock Mark Langsdorf
2012-11-27 15:04 ` [PATCH 2/6 v5] clk, highbank: Prevent glitches in non-bypass reset mode Mark Langsdorf
2012-11-27 18:15 ` Mike Turquette
2012-11-27 15:04 ` [PATCH 3/6 v5] cpufreq: tolerate inexact values when collecting stats Mark Langsdorf
2012-11-27 15:04 ` [PATCH 4/6 v5] arm highbank: add support for pl320 IPC Mark Langsdorf
2012-11-27 16:12 ` Thomas Petazzoni
2012-11-27 19:53 ` Mark Langsdorf
[not found] ` <1354602789308-564771.post@n7.nabble.com>
2013-01-29 2:26 ` liuhuan123
2013-02-06 5:43 ` liuhuan123
2013-02-21 5:11 ` liuhuan123
2013-03-21 4:01 ` liuhuan123
2013-03-12 5:29 ` liuhuan123
2012-11-27 15:04 ` [PATCH 5/6 v5] power: export opp cpufreq functions Mark Langsdorf
2012-11-27 15:04 ` [PATCH 6/6 v5] cpufreq, highbank: add support for highbank cpufreq Mark Langsdorf
2012-11-27 19:04 ` [PATCH 0/6 v5] cpufreq: add support for Calxeda ECX-1000 (highbank) Rafael J. Wysocki
2012-11-27 20:04 ` [PATCH 0/6 v6] " Mark Langsdorf
2012-11-27 20:04 ` [PATCH 1/6 v6] arm: use devicetree to get smp_twd clock Mark Langsdorf
2012-11-27 20:04 ` [PATCH 2/6 v6] clk, highbank: Prevent glitches in non-bypass reset mode Mark Langsdorf
2012-11-27 20:04 ` [PATCH 3/6 v6] cpufreq: tolerate inexact values when collecting stats Mark Langsdorf
2012-11-27 20:04 ` [PATCH 4/6 v6] arm highbank: add support for pl320 IPC Mark Langsdorf
2012-11-27 20:04 ` [PATCH 5/6 v6] power: export opp cpufreq functions Mark Langsdorf
2012-11-27 20:04 ` [PATCH 6/6 v6] cpufreq, highbank: add support for highbank cpufreq Mark Langsdorf
2012-11-28 2:32 ` Shawn Guo
2012-11-28 13:16 ` Mark Langsdorf
2012-11-28 14:58 ` Shawn Guo
2012-11-28 15:17 ` Shawn Guo
2012-11-28 15:01 ` Mark Langsdorf
2012-11-28 16:01 ` Mike Turquette
2012-11-28 16:18 ` Mark Langsdorf
2012-11-28 21:05 ` Mike Turquette
2012-11-29 0:24 ` Mark Langsdorf
2012-11-29 1:51 ` Shawn Guo
2012-11-29 4:34 ` Mike Turquette
2012-12-04 14:33 ` [PATCH 0/6 v7] cpufreq: add support for Calxeda ECX-1000 (highbank) Mark Langsdorf
2012-12-04 14:33 ` [PATCH 1/6 v7] arm: use devicetree to get smp_twd clock Mark Langsdorf
2012-12-04 14:33 ` [PATCH 2/6 v7] clk, highbank: Prevent glitches in non-bypass reset mode Mark Langsdorf
2012-12-04 14:33 ` [PATCH 3/6 v7] cpufreq: tolerate inexact values when collecting stats Mark Langsdorf
2012-12-04 14:34 ` [PATCH 4/6 v7] arm highbank: add support for pl320 IPC Mark Langsdorf
2012-12-04 14:34 ` [PATCH 5/6 v7] power: export opp cpufreq functions Mark Langsdorf
2012-12-04 14:34 ` [PATCH 6/6 v7] cpufreq, highbank: add support for highbank cpufreq Mark Langsdorf
2012-12-04 16:21 ` Shawn Guo
2012-12-05 16:48 ` [PATCH 0/6 v8] cpufreq: add support for Calxeda ECX-1000 (highbank) Mark Langsdorf
2012-12-05 16:48 ` [PATCH 1/6 v8] arm: use devicetree to get smp_twd clock Mark Langsdorf
2012-12-05 16:48 ` [PATCH 2/6 v8] clk, highbank: Prevent glitches in non-bypass reset mode Mark Langsdorf
2012-12-05 18:02 ` Mike Turquette
2012-12-05 16:48 ` [PATCH 3/6 v8] cpufreq: tolerate inexact values when collecting stats Mark Langsdorf
2012-12-05 16:48 ` [PATCH 4/6 v8] arm highbank: add support for pl320 IPC Mark Langsdorf
2012-12-05 16:48 ` [PATCH 5/6 v8] power: export opp cpufreq functions Mark Langsdorf
2012-12-05 16:48 ` [PATCH 6/6 v8] cpufreq, highbank: add support for highbank cpufreq Mark Langsdorf
2012-12-05 18:49 ` Mike Turquette
2012-12-05 22:09 ` Mark Langsdorf
2012-12-06 9:37 ` Shawn Guo
2012-12-27 13:12 ` [PATCH 0/6 v8] cpufreq: add support for Calxeda ECX-1000 (highbank) Rafael J. Wysocki
2012-12-27 13:28 ` Mark Langsdorf
2012-12-27 14:43 ` Rafael J. Wysocki
2012-12-06 22:42 ` [PATCH 0/6 v9] " Mark Langsdorf
2012-12-06 22:42 ` [PATCH 1/6 v9] arm: use devicetree to get smp_twd clock Mark Langsdorf
2012-12-07 14:55 ` Thiago Farina
2012-12-27 5:11 ` Prashant Gaikwad
2012-12-06 22:42 ` [PATCH 2/6 v9] clk, highbank: Prevent glitches in non-bypass reset mode Mark Langsdorf
2012-12-06 22:42 ` [PATCH 3/6 v9] cpufreq: tolerate inexact values when collecting stats Mark Langsdorf
2012-12-06 22:42 ` [PATCH 4/6 v9] arm highbank: add support for pl320 IPC Mark Langsdorf
2012-12-06 22:42 ` [PATCH 5/6 v9] power: export opp cpufreq functions Mark Langsdorf
2012-12-06 22:42 ` [PATCH 6/6 v9] cpufreq, highbank: add support for highbank cpufreq Mark Langsdorf
2012-12-07 7:04 ` Mike Turquette
2013-01-04 16:35 ` [PATCH 0/4 v10] cpufreq: add support for Calxeda ECX-1000 (highbank) Mark Langsdorf
2013-01-04 16:35 ` [PATCH 1/4 v10] arm: use devicetree to get smp_twd clock Mark Langsdorf
2013-01-10 23:34 ` Russell King - ARM Linux
2013-01-11 14:40 ` Rob Herring
2013-01-04 16:35 ` [PATCH 2/4 v10] clk, highbank: Prevent glitches in non-bypass reset mode Mark Langsdorf
2013-01-04 16:35 ` [PATCH 3/4 v10] arm highbank: add support for pl320 IPC Mark Langsdorf
2013-01-04 16:35 ` [PATCH 4/4 v10] cpufreq, highbank: add support for highbank cpufreq Mark Langsdorf
2013-01-25 19:46 ` [PATCH 0/4 v11] cpufreq: add support for Calxeda ECX-1000 (highbank) Mark Langsdorf
2013-01-25 19:46 ` [PATCH 1/4 v11] arm: use device tree to get smp_twd clock Mark Langsdorf
2013-01-25 21:03 ` Rafael J. Wysocki
2013-01-25 21:40 ` Russell King - ARM Linux
2013-01-25 22:15 ` Rafael J. Wysocki
2013-01-25 19:46 ` [PATCH 2/4 v11] clk, highbank: Prevent glitches in non-bypass reset mode Mark Langsdorf
2013-01-25 19:46 ` [PATCH 3/4 v11] arm highbank: add support for pl320 IPC Mark Langsdorf
2013-01-28 12:49 ` Rafael J. Wysocki
2013-01-28 13:44 ` Mark Langsdorf
2013-01-28 20:48 ` Rafael J. Wysocki
2013-01-25 19:46 ` [PATCH 4/4] cpufreq, highbank: add support for highbank cpufreq Mark Langsdorf
2013-01-26 14:39 ` Shawn Guo
2013-01-26 22:24 ` Rafael J. Wysocki
2013-01-28 8:37 ` Shawn Guo
2013-01-28 16:13 ` [PATCH 0/4 v12] cpufreq: add support for Calxeda ECX-1000 (highbank) Mark Langsdorf
2013-01-28 16:13 ` [PATCH 1/4 v12] arm: use device tree to get smp_twd clock Mark Langsdorf
2013-01-28 16:13 ` [PATCH 2/4 v12] clk, highbank: Prevent glitches in non-bypass reset mode Mark Langsdorf
2013-01-28 16:13 ` [PATCH 3/4 v12] arm highbank: add support for pl320 IPC Mark Langsdorf
2013-01-28 16:13 ` [PATCH 4/4 v12] cpufreq, highbank: add support for highbank cpufreq Mark Langsdorf
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