From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>,
benh@kernel.crashing.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org
Cc: michael@ellerman.id.au, scottwood@freescale.com,
srivatsa.bhat@linux.vnet.ibm.com, preeti@linux.vnet.ibm.com,
linux-pm@lists.linux-foundation.org, svaidy@linux.vnet.ibm.com
Subject: Re: [PATCH V7 7/7] powernv/cpuidle: Enable idle powernv cpu to call into the cpuidle framework.
Date: Wed, 06 Nov 2013 22:11:02 +0100 [thread overview]
Message-ID: <527AB066.6050805@linaro.org> (raw)
In-Reply-To: <20131029110201.31547.55088.stgit@deepthi.in.ibm.com>
On 10/29/2013 12:02 PM, Deepthi Dharwar wrote:
> This patch enables idle cpu on the powernv platform to hook on to the cpuidle
> framework, if available, else call on to default idle platform
> code.
>
> Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
> ---
> arch/powerpc/platforms/powernv/setup.c | 13 ++++++++++++-
> 1 file changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
> index e239dcf..42a6ba0 100644
> --- a/arch/powerpc/platforms/powernv/setup.c
> +++ b/arch/powerpc/platforms/powernv/setup.c
> @@ -25,6 +25,7 @@
> #include <linux/of.h>
> #include <linux/interrupt.h>
> #include <linux/bug.h>
> +#include <linux/cpuidle.h>
>
> #include <asm/machdep.h>
> #include <asm/firmware.h>
> @@ -192,6 +193,16 @@ static void __init pnv_setup_machdep_rtas(void)
> }
> #endif /* CONFIG_PPC_POWERNV_RTAS */
>
> +void powernv_idle(void)
> +{
> + /* Hook to cpuidle framework if available, else
> + * call on default platform idle code
> + */
> + if (cpuidle_idle_call()) {
> + power7_idle();
> + }
> +}
> +
> static int __init pnv_probe(void)
> {
> unsigned long root = of_get_flat_dt_root();
> @@ -222,7 +233,7 @@ define_machine(powernv) {
> .show_cpuinfo = pnv_show_cpuinfo,
> .progress = pnv_progress,
> .machine_shutdown = pnv_shutdown,
> - .power_save = power7_idle,
> + .power_save = powernv_idle,
> .calibrate_decr = generic_calibrate_decr,
> #ifdef CONFIG_KEXEC
> .kexec_cpu_down = pnv_kexec_cpu_down,
>
--
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prev parent reply other threads:[~2013-11-06 21:11 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-29 11:01 [PATCH V7 0/7] POWER/cpuidle: Generic IBM-POWER cpuidle driver enabled for PSERIES and POWERNV platforms Deepthi Dharwar
2013-10-29 11:01 ` [PATCH V7 1/7] pseries/cpuidle: Move processor_idle.c to drivers/cpuidle Deepthi Dharwar
2013-11-06 20:58 ` Daniel Lezcano
2013-10-29 11:01 ` [PATCH V7 2/7] pseries/cpuidle: Use cpuidle_register() for initialisation Deepthi Dharwar
2013-11-06 21:00 ` Daniel Lezcano
2013-10-29 11:01 ` [PATCH V7 3/7] pseries/cpuidle: Make pseries_idle backend driver a non-module Deepthi Dharwar
2013-11-06 21:01 ` Daniel Lezcano
2013-10-29 11:01 ` [PATCH V7 4/7] pseries/cpuidle: Remove MAX_IDLE_STATE macro Deepthi Dharwar
2013-11-06 21:02 ` Daniel Lezcano
2013-10-29 11:01 ` [PATCH V7 5/7] POWER/cpuidle: Generic POWER CPUIDLE driver supporting PSERIES Deepthi Dharwar
2013-11-06 21:05 ` Daniel Lezcano
2013-11-07 4:15 ` Deepthi Dharwar
2013-11-07 5:01 ` Benjamin Herrenschmidt
2013-11-07 5:27 ` Deepthi Dharwar
2013-10-29 11:01 ` [PATCH V7 6/7] POWER/cpuidle: Enable powernv cpuidle support Deepthi Dharwar
2013-11-06 21:06 ` Daniel Lezcano
2013-10-29 11:02 ` [PATCH V7 7/7] powernv/cpuidle: Enable idle powernv cpu to call into the cpuidle framework Deepthi Dharwar
2013-11-06 21:11 ` Daniel Lezcano [this message]
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