diff options
Diffstat (limited to 'drivers/cpuidle')
| -rw-r--r-- | drivers/cpuidle/cpuidle-at91.c | 5 | ||||
| -rw-r--r-- | drivers/cpuidle/cpuidle-kirkwood.c | 5 | ||||
| -rw-r--r-- | drivers/cpuidle/governors/haltpoll.c | 3 |
3 files changed, 5 insertions, 8 deletions
diff --git a/drivers/cpuidle/cpuidle-at91.c b/drivers/cpuidle/cpuidle-at91.c index 9c5853b6ca4a..45ee8e1e71ae 100644 --- a/drivers/cpuidle/cpuidle-at91.c +++ b/drivers/cpuidle/cpuidle-at91.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * based on arch/arm/mach-kirkwood/cpuidle.c * * CPU idle support for AT91 SoC * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - * * The cpu idle uses wait-for-interrupt and RAM self refresh in order * to implement two idle states - * #1 wait-for-interrupt diff --git a/drivers/cpuidle/cpuidle-kirkwood.c b/drivers/cpuidle/cpuidle-kirkwood.c index 511c4f46027a..13bf743f885b 100644 --- a/drivers/cpuidle/cpuidle-kirkwood.c +++ b/drivers/cpuidle/cpuidle-kirkwood.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * CPU idle Marvell Kirkwood SoCs * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - * * The cpu idle uses wait-for-interrupt and DDR self refresh in order * to implement two idle states - * #1 wait-for-interrupt diff --git a/drivers/cpuidle/governors/haltpoll.c b/drivers/cpuidle/governors/haltpoll.c index cb2a96eafc02..1dff3a52917d 100644 --- a/drivers/cpuidle/governors/haltpoll.c +++ b/drivers/cpuidle/governors/haltpoll.c @@ -19,6 +19,7 @@ #include <linux/sched.h> #include <linux/module.h> #include <linux/kvm_para.h> +#include <trace/events/power.h> static unsigned int guest_halt_poll_ns __read_mostly = 200000; module_param(guest_halt_poll_ns, uint, 0644); @@ -90,6 +91,7 @@ static void adjust_poll_limit(struct cpuidle_device *dev, u64 block_ns) if (val > guest_halt_poll_ns) val = guest_halt_poll_ns; + trace_guest_halt_poll_ns_grow(val, dev->poll_limit_ns); dev->poll_limit_ns = val; } else if (block_ns > guest_halt_poll_ns && guest_halt_poll_allow_shrink) { @@ -100,6 +102,7 @@ static void adjust_poll_limit(struct cpuidle_device *dev, u64 block_ns) val = 0; else val /= shrink; + trace_guest_halt_poll_ns_shrink(val, dev->poll_limit_ns); dev->poll_limit_ns = val; } } |