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3af0ada7dd
linux/drivers/cpuidle
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Gautham R. Shenoy 3af0ada7dd cpuidle: pseries: Set the latency-hint before entering CEDE 
As per the PAPR, each H_CEDE call is associated with a latency-hint to
be passed in the VPA field "cede_latency_hint". The CEDE states that
we were implicitly entering so far is CEDE with latency-hint = 0.

This patch explicitly sets the latency hint corresponding to the CEDE
state that we are currently entering. While at it, we save the
previous hint, to be restored once we wakeup from CEDE. This will be
required in the future when we expose extended-cede states through the
cpuidle framework, where each of them will have a different
cede-latency hint.

Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
[mpe: Make cede_latency_hint static]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1596087177-30329-2-git-send-email-ego@linux.vnet.ibm.com
2020-07-30 22:53:50 +10:00
..
governors cpuidle: teo: Fix intervals[] array indexing bug 2020-01-13 11:14:58 +01:00
coupled.c cpuidle: coupled: fix warnings when compiling with W=1 2020-01-23 00:30:28 +01:00
cpuidle-arm.c thermal: cpuidle: Register cpuidle cooling device 2020-05-19 12:58:07 +02:00
cpuidle-at91.c drivers/cpuidle: Convert non-modular drivers to use builtin_platform_driver 2015-06-16 14:12:38 -04:00
cpuidle-big_little.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cpuidle-calxeda.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
cpuidle-clps711x.c cpuidle: clps711x: convert to devm_platform_ioremap_resource() 2019-12-20 10:04:27 +01:00
cpuidle-cps.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cpuidle-exynos.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cpuidle-haltpoll.c cpuidle-haltpoll: Fix small typo 2020-04-08 14:35:45 +02:00
cpuidle-kirkwood.c cpuidle: kirkwood: convert to devm_platform_ioremap_resource() 2019-12-20 10:05:44 +01:00
cpuidle-mvebu-v7.c cpuidle: mvebu: disable the bind/unbind attributes and use builtin_platform_driver 2015-10-23 12:40:48 +02:00
cpuidle-powernv.c cpuidle/powernv : Remove dead code block 2020-07-15 11:07:20 +10:00
cpuidle-psci-domain.c cpuidle: psci: Add support for PM domains by using genpd 2020-01-02 16:52:57 +01:00
cpuidle-psci.c - Add the hwmon support on the i.MX SC (Anson Huang) 2020-06-12 14:10:21 -07:00
cpuidle-psci.h cpuidle: psci: Add support for PM domains by using genpd 2020-01-02 16:52:57 +01:00
cpuidle-pseries.c cpuidle: pseries: Set the latency-hint before entering CEDE 2020-07-30 22:53:50 +10:00
cpuidle-qcom-spm.c cpuidle: Convert Qualcomm SPM driver to a generic CPUidle driver 2020-05-26 10:46:01 +02:00
cpuidle-tegra.c cpuidle: tegra: Support CPU cluster power-down state on Tegra30 2020-05-06 18:42:55 +02:00
cpuidle-ux500.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cpuidle-zynq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
cpuidle.c PM: QoS: Drop PM_QOS_CPU_DMA_LATENCY notifier chain 2020-02-13 11:26:27 +01:00
cpuidle.h cpuidle: allow governor switch on cpuidle_register_driver() 2019-09-11 17:36:30 +02:00
driver.c cpuidle: Drop unused cpuidle_driver_ref/unref() functions 2020-01-09 16:47:22 +01:00
dt_idle_states.c cpuidle: dt: Support hierarchical CPU idle states 2020-01-02 16:50:08 +01:00
dt_idle_states.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
governor.c cpuidle: Call cpu_latency_qos_limit() instead of pm_qos_request() 2020-02-13 11:26:57 +01:00
Kconfig cpuidle: Fix Kconfig indentation 2019-11-29 11:47:35 +01:00
Kconfig.arm cpuidle: Convert Qualcomm SPM driver to a generic CPUidle driver 2020-05-26 10:46:01 +02:00
Kconfig.mips treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Kconfig.powerpc treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile cpuidle: Convert Qualcomm SPM driver to a generic CPUidle driver 2020-05-26 10:46:01 +02:00
poll_state.c cpuidle: Drop disabled field from struct cpuidle_state 2019-11-29 11:48:39 +01:00
sysfs.c cpuidle: Fix three reference count leaks 2020-05-29 18:07:18 +02:00