diff options
author | Alvaro Fernández Rojas <noltari@gmail.com> | 2016-06-20 23:24:50 +0200 |
---|---|---|
committer | Zoltan HERPAI <wigyori@uid0.hu> | 2016-06-20 23:24:50 +0200 |
commit | 2dc1e11c688a439084692e0b86d20adc0310d42c (patch) | |
tree | 75d7685ac955c38262433c6b8757cd1169b63e35 /target/linux/brcm2708/patches-4.4/0218-cpufreq-Temporarily-ignore-io_is_busy-1.patch | |
parent | 14cd93c1ec0fecdd49d5bbf9ebec1a9bf02d6803 (diff) | |
download | master-187ad058-2dc1e11c688a439084692e0b86d20adc0310d42c.tar.gz master-187ad058-2dc1e11c688a439084692e0b86d20adc0310d42c.tar.bz2 master-187ad058-2dc1e11c688a439084692e0b86d20adc0310d42c.zip |
As usual these patches were extracted from the raspberry pi repo:
https://github.com/raspberrypi/linux/tree/rpi-4.4.y
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0218-cpufreq-Temporarily-ignore-io_is_busy-1.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.4/0218-cpufreq-Temporarily-ignore-io_is_busy-1.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0218-cpufreq-Temporarily-ignore-io_is_busy-1.patch b/target/linux/brcm2708/patches-4.4/0218-cpufreq-Temporarily-ignore-io_is_busy-1.patch new file mode 100644 index 0000000000..7f809afda0 --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0218-cpufreq-Temporarily-ignore-io_is_busy-1.patch @@ -0,0 +1,31 @@ +From 65d0fed05912509d60d94fdba8debe1a095c73a6 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Wed, 30 Mar 2016 17:23:15 +0100 +Subject: [PATCH 218/304] cpufreq: Temporarily ignore io_is_busy=1 + +To speed testing of the new sdhost driver that adapts to changes in +core_freq, hack the on-demand governor to treat io_is_busy=1 as +io_is_busy=0. The io_is_busy feature can still be forced using +io_is_busy=2. + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + drivers/cpufreq/cpufreq_ondemand.c | 7 ++++++- + 1 file changed, 6 insertions(+), 1 deletion(-) + +--- a/drivers/cpufreq/cpufreq_ondemand.c ++++ b/drivers/cpufreq/cpufreq_ondemand.c +@@ -307,7 +307,12 @@ static ssize_t store_io_is_busy(struct d + ret = sscanf(buf, "%u", &input); + if (ret != 1) + return -EINVAL; +- od_tuners->io_is_busy = !!input; ++ // XXX temporary hack ++ if (input > 1) ++ input = 1; ++ else ++ input = 0; ++ od_tuners->io_is_busy = input; + + /* we need to re-evaluate prev_cpu_idle */ + for_each_online_cpu(j) { |