bab9bb6b69
Create new directories:
ceph
config
config-files
filesystem
kernel
kernel/kernel-modules
ldap
logging
strorage-drivers
tools
utilities
virt
Retire directories:
connectivity
core
devtools
support
extended
Delete two packages:
tgt
irqbalance
Relocated packages:
base/
dhcp
initscripts
libevent
lighttpd
linuxptp
memcached
net-snmp
novnc
ntp
openssh
pam
procps
sanlock
shadow
sudo
systemd
util-linux
vim
watchdog
ceph/
python-cephclient
config/
facter
puppet-4.8.2
puppet-modules
filesystem/
e2fsprogs
nfs-utils
nfscheck
kernel/
kernel-std
kernel-rt
kernel/kernel-modules/
mlnx-ofa_kernel
ldap/
nss-pam-ldapd
openldap
logging/
syslog-ng
logrotate
networking/
lldpd
iproute
mellanox
python-ryu
mlx4-config
python/
python-2.7.5
python-django
python-gunicorn
python-setuptools
python-smartpm
python-voluptuous
security/
shim-signed
shim-unsigned
tboot
strorage-drivers/
python-3parclient
python-lefthandclient
virt/
cloud-init
libvirt
libvirt-python
qemu
tools/
storage-topology
vm-topology
utilities/
tis-extensions
namespace-utils
nova-utils
update-motd
Change-Id: I37ade764d873c701b35eac5881eb40412ba64a86
Story: 2002801
Task: 22687
Signed-off-by: Scott Little <scott.little@windriver.com>
72 lines
2.6 KiB
Diff
72 lines
2.6 KiB
Diff
From e3d73746230638fd50670d67843346ccaebb885b Mon Sep 17 00:00:00 2001
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Message-Id: <e3d73746230638fd50670d67843346ccaebb885b.1527544850.git.Jim.Somerville@windriver.com>
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In-Reply-To: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
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References: <b6ceef1c915827b50ce3f76da4dc47f3eb768b44.1527544850.git.Jim.Somerville@windriver.com>
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From: Alex Shi <alex.shi@linaro.org>
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Date: Thu, 12 Jan 2017 21:27:04 +0800
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Subject: [PATCH 19/26] cpuidle/menu: add per CPU PM QoS resume latency
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consideration
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[ commit 9908859acaa95640d4a07991a93f7cd5bfc18e02 from linux-stable ]
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There may be special requirements on CPU response time, like if
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a interrupt is pinned to a CPU, that CPU should not go into excessively deep
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idle states. For this reason, add a mechanism for adding PM QoS resume
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latency constraints for individual CPUs and modify the menu governor to take
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them into account.
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To that end, extend the device PM QoS pm_qos_resume_latency attribute
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to CPUs, which is possible, because the exit latency for CPUs is
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effectively equivalent to the resume latency for devices.
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Signed-off-by: Alex Shi <alex.shi@linaro.org>
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Acked-by: Rik van Riel <riel@redhat.com>
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[ rjw : Subject & changelog ]
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Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Signed-off-by: Alex Kozyrev <alex.kozyrev@windriver.com>
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Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
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---
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drivers/cpuidle/governors/menu.c | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
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index eb9fb0e..fe2dcb8 100644
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--- a/drivers/cpuidle/governors/menu.c
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+++ b/drivers/cpuidle/governors/menu.c
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@@ -19,6 +19,7 @@
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#include <linux/tick.h>
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#include <linux/sched.h>
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#include <linux/math64.h>
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+#include <linux/cpu.h>
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#include <linux/module.h>
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#define BUCKETS 12
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@@ -259,10 +260,12 @@ again:
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static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
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{
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struct menu_device *data = &__get_cpu_var(menu_devices);
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+ struct device *device = get_cpu_device(dev->cpu);
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int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY);
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int i;
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int multiplier;
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struct timespec t;
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+ int resume_latency = dev_pm_qos_read_value(device);
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if (data->needs_update) {
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menu_update(drv, dev);
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@@ -271,6 +274,10 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
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data->exit_us = 0;
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+ /* resume_latency is 0 means no restriction */
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+ if (resume_latency && resume_latency < latency_req)
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+ latency_req = resume_latency;
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+
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/* Special case when user has set very strict latency requirement */
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if (unlikely(latency_req == 0))
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return 0;
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--
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1.8.3.1
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