From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Lezcano Subject: Re: [PATCH v2 6/9] intel_idle: do C1E promotion disable quirk for hotplugged CPUs Date: Fri, 20 Dec 2013 22:52:35 +0100 Message-ID: <52B4BC23.4080102@linaro.org> References: <1387565251-7051-1-git-send-email-b.zolnierkie@samsung.com> <1387565251-7051-7-git-send-email-b.zolnierkie@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <1387565251-7051-7-git-send-email-b.zolnierkie@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org To: Bartlomiej Zolnierkiewicz , rjw@rjwysocki.net Cc: lenb@kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kyungmin.park@samsung.com List-Id: linux-pm@vger.kernel.org On 12/20/2013 07:47 PM, Bartlomiej Zolnierkiewicz wrote: > If the system is booted with some CPUs offline C1E promotion disable = quirk > won't be applied because on_each_cpu() in intel_idle_cpuidle_driver_i= nit() > operates only on online CPUs. Fix it by adding the C1E promotion disa= ble > handling to intel_idle_cpu_init() (which is also called during CPU_ON= LINE > operation). > > Signed-off-by: Bartlomiej Zolnierkiewicz > Signed-off-by: Kyungmin Park > Cc: Len Brown Reviewed-by: Daniel Lezcano > --- > drivers/idle/intel_idle.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c > index 92d1206..38da3fb 100644 > --- a/drivers/idle/intel_idle.c > +++ b/drivers/idle/intel_idle.c > @@ -683,6 +683,9 @@ static int intel_idle_cpu_init(int cpu) > if (icpu->auto_demotion_disable_flags) > smp_call_function_single(cpu, auto_demotion_disable, NULL, 1); > > + if (icpu->disable_promotion_to_c1e) > + smp_call_function_single(cpu, c1e_promotion_disable, NULL, 1); > + > return 0; > } --=20 Linaro.org =E2=94=82 Open source software fo= r ARM SoCs =46ollow Linaro: Facebook | Twitter | Blog