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716ff71ae2
linux/drivers/cpuidle
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Li RongQing 716ff71ae2 cpuidle-haltpoll: Replace default_idle() with arch_cpu_idle() 
When a KVM guest has MWAIT, mwait_idle() is used as the default idle
function.

However, the cpuidle-haltpoll driver calls default_idle() from
default_enter_idle() directly and that one uses HLT instead of MWAIT,
which may affect performance adversely, because MWAIT is preferred to
HLT as explained by the changelog of commit aebef63cf7 ("x86: Remove
vendor checks from prefer_mwait_c1_over_halt").

Make default_enter_idle() call arch_cpu_idle(), which can use MWAIT,
instead of default_idle() to address this issue.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Li RongQing <lirongqing@baidu.com>
[ rjw: Changelog rewrite ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-01-20 17:33:52 +01:00
..
governors cpuidle: teo: Introduce util-awareness 2023-01-10 20:53:22 +01:00
coupled.c cpuidle: coupled: Drop duplicate word from a comment 2022-08-31 20:54:01 +02:00
cpuidle-arm.c thermal: cpuidle: Register cpuidle cooling device 2020-05-19 12:58:07 +02:00
cpuidle-at91.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
cpuidle-big_little.c cpuidle: big.LITTLE: enable driver only on Peach-Pit/Pi Chromebooks 2020-10-26 10:15:24 +01:00
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: Replace default_idle() with arch_cpu_idle() 2023-01-20 17:33:52 +01:00
cpuidle-kirkwood.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
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 powerpc/cpuidle: Set CPUIDLE_FLAG_POLLING for snooze state 2022-12-06 23:18:19 +11:00
cpuidle-psci-domain.c cpuidle: psci: Extend information in log about OSI/PC mode 2022-10-28 20:06:36 +02:00
cpuidle-psci.c context_tracking: Take IRQ eqs entrypoints over RCU 2022-07-05 13:32:59 -07:00
cpuidle-psci.h cpuidle: Factor-out power domain related code from PSCI domain driver 2022-03-10 09:29:44 -08:00
cpuidle-pseries.c powerpc/cpuidle: Set CPUIDLE_FLAG_POLLING for snooze state 2022-12-06 23:18:19 +11:00
cpuidle-qcom-spm.c firmware: qcom: scm: Drop cpumask parameter from set_boot_addr() 2022-02-03 21:54:48 -06:00
cpuidle-riscv-sbi.c cpuidle: riscv-sbi: Fix CPU_PM_CPU_IDLE_ENTER_xyz() macro usage 2022-09-23 03:56:00 -07:00
cpuidle-tegra.c cpuidle: tegra: Check whether PMC is ready 2021-10-05 19:11:40 +02:00
cpuidle-ux500.c mfd/cpuidle: ux500: Rename driver symbol 2021-08-16 13:42:34 +01:00
cpuidle-zynq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
cpuidle.c More power management updates for 5.20-rc1 2022-08-08 14:29:00 -07:00
cpuidle.h cpuidle: allow governor switch on cpuidle_register_driver() 2019-09-11 17:36:30 +02:00
driver.c cpuidle: Use s64 as exit_latency_ns and target_residency_ns data type 2021-04-07 19:26:44 +02:00
dt_idle_genpd.c cpuidle: Factor-out power domain related code from PSCI domain driver 2022-03-10 09:29:44 -08:00
dt_idle_genpd.h cpuidle: Factor-out power domain related code from PSCI domain driver 2022-03-10 09:29:44 -08:00
dt_idle_states.c cpuidle: dt: Clarify a comment and simplify code in dt_init_idle_driver() 2022-10-28 20:07:28 +02:00
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: Remove redundant check in cpuidle_switch_governor() 2022-09-03 20:14:51 +02:00
Kconfig cpuidle-haltpoll: select haltpoll governor 2023-01-13 20:50:46 +01:00
Kconfig.arm cpuidle: cpuidle-arm: remove arm64 support 2022-06-23 14:19:33 +01:00
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
Kconfig.riscv cpuidle: Add RISC-V SBI CPU idle driver 2022-03-10 09:29:51 -08:00
Makefile cpuidle: Add RISC-V SBI CPU idle driver 2022-03-10 09:29:51 -08:00
poll_state.c cpuidle: Drop disabled field from struct cpuidle_state 2019-11-29 11:48:39 +01:00
sysfs.c cpuidle: use default_groups in kobj_type 2022-01-05 18:31:17 +01:00