From 99e7c8d157707f735c406f93d8a3811aa2c73151 Mon Sep 17 00:00:00 2001 From: Pingfan Liu Date: Thu, 22 Oct 2020 14:51:19 +0800 Subject: [PATCH] powerpc/time: Enable sched clock for irqtime [ Upstream commit b709e32ef570b8b91dfbcb63cffac4324c87799f ] When CONFIG_IRQ_TIME_ACCOUNTING and CONFIG_VIRT_CPU_ACCOUNTING_GEN, powerpc does not enable "sched_clock_irqtime" and can not utilize irq time accounting. Like x86, powerpc does not use the sched_clock_register() interface. So it needs an dedicated call to enable_sched_clock_irqtime() to enable irq time accounting. Fixes: 518470fe962e ("powerpc: Add HAVE_IRQ_TIME_ACCOUNTING") Signed-off-by: Pingfan Liu [mpe: Add fixes tag] Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/1603349479-26185-1-git-send-email-kernelfans@gmail.com Signed-off-by: Sasha Levin --- arch/powerpc/kernel/time.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 7d372ff..1d20f0f 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -53,6 +53,7 @@ #include #include #include +#include #include #include @@ -1095,6 +1096,7 @@ void __init time_init(void) tick_setup_hrtimer_broadcast(); of_clk_init(NULL); + enable_sched_clock_irqtime(); } /* -- 2.7.4