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From: "Liang, Ma" <liang.j.ma@intel.com>
To: Lee Daly <lee.daly@intel.com>
Cc: david.hunt@intel.com, dev@dpdk.org, stable@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] lib/librte_power: set new frequecy on turbo_disable
Date: Mon, 15 Apr 2019 17:11:10 +0100	[thread overview]
Message-ID: <20190415161110.GA17469@sivswdev09.ir.intel.com> (raw)
Message-ID: <20190415161110.c7I9guETeUY3EZ2BZFYol0BhrHsyhVV2yCOwnyEf2iU@z> (raw)
In-Reply-To: <1555084647-75896-1-git-send-email-lee.daly@intel.com>


Acked-by: Liang Ma <liang.j.ma@intel.com>

On 12 Apr 16:57, Lee Daly wrote:
> This patch will ensure the correct max frequency of a core is set in
> the lcore_power_info struct when disabling turbo, while using the
> intel pstate driver.
> 
> Fixes: e6c6dc0f96c8 ("power: add p-state driver compatibility")
> Cc: liang.j.ma@intel.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Lee Daly <lee.daly@intel.com>
> ---
>  lib/librte_power/power_pstate_cpufreq.c | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/librte_power/power_pstate_cpufreq.c b/lib/librte_power/power_pstate_cpufreq.c
> index 336c13869..d2ac75123 100644
> --- a/lib/librte_power/power_pstate_cpufreq.c
> +++ b/lib/librte_power/power_pstate_cpufreq.c
> @@ -810,7 +810,15 @@ power_pstate_disable_turbo(unsigned int lcore_id)
>  
>  	pi->turbo_enable = 0;
>  
> -
> +	if ((pi->turbo_available) && (pi->curr_idx <= 1)) {
> +		/* Try to set freq to max by default coming out of turbo */
> +		if (power_pstate_cpufreq_freq_max(lcore_id) < 0) {
> +			RTE_LOG(ERR, POWER,
> +				"Failed to set frequency of lcore %u to max\n",
> +				lcore_id);
> +			return -1;
> +		}
> +	}
>  	return 0;
>  }
>  
> -- 
> 2.17.1
> 

  parent reply	other threads:[~2019-04-15 16:11 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-12 15:57 Lee Daly
2019-04-12 15:57 ` Lee Daly
2019-04-15  9:21 ` Hunt, David
2019-04-15  9:21   ` Hunt, David
2019-04-22 22:12   ` Thomas Monjalon
2019-04-22 22:12     ` Thomas Monjalon
2019-04-15 16:11 ` Liang, Ma [this message]
2019-04-15 16:11   ` Liang, Ma
2019-04-15 16:36   ` Stephen Hemminger
2019-04-15 16:36     ` Stephen Hemminger
2019-04-16  9:25     ` Bruce Richardson
2019-04-16  9:25       ` Bruce Richardson

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