Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 328/663] powerpc/time: Enable sched clock for irqtime | Date | Mon, 1 Mar 2021 17:09:36 +0100 |
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From: Pingfan Liu <kernelfans@gmail.com>
[ 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 <kernelfans@gmail.com> [mpe: Add fixes tag] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1603349479-26185-1-git-send-email-kernelfans@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org> --- 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 7d372ff3504b2..1d20f0f77a920 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -53,6 +53,7 @@ #include <linux/of_clk.h> #include <linux/suspend.h> #include <linux/sched/cputime.h> +#include <linux/sched/clock.h> #include <linux/processor.h> #include <asm/trace.h> @@ -1095,6 +1096,7 @@ void __init time_init(void) tick_setup_hrtimer_broadcast(); of_clk_init(NULL); + enable_sched_clock_irqtime(); } /* -- 2.27.0
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