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From: Sibi Sankar <sibis@codeaurora.org>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Georgi Djakov <georgi.djakov@linaro.org>,
	vireshk@kernel.org, nm@ti.com, sboyd@kernel.org,
	rjw@rjwysocki.net, saravanak@google.com, mka@chromium.org,
	robh+dt@kernel.org, rnayak@codeaurora.org,
	bjorn.andersson@linaro.org, vincent.guittot@linaro.org,
	jcrouse@codeaurora.org, evgreen@chromium.org,
	linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v8 04/10] OPP: Add support for parsing interconnect bandwidth
Date: Fri, 29 May 2020 17:09:51 +0530	[thread overview]
Message-ID: <423a76300ccc9a8fa9e825cab56d4d36@codeaurora.org> (raw)
In-Reply-To: <20200529044437.5wmbbews2vn66dia@vireshk-i7>

On 2020-05-29 10:14, Viresh Kumar wrote:
> On 12-05-20, 15:53, Georgi Djakov wrote:
>>  struct dev_pm_opp *_opp_allocate(struct opp_table *table)
>>  {
>>  	struct dev_pm_opp *opp;
>> -	int count, supply_size;
>> +	int supply_count, supply_size, icc_size;
>> 
>>  	/* Allocate space for at least one supply */
>> -	count = table->regulator_count > 0 ? table->regulator_count : 1;
>> -	supply_size = sizeof(*opp->supplies) * count;
>> +	supply_count = table->regulator_count > 0 ? table->regulator_count : 
>> 1;
>> +	supply_size = sizeof(*opp->supplies) * supply_count;
>> +	icc_size = sizeof(*opp->bandwidth) * table->path_count;
>> 
>>  	/* allocate new OPP node and supplies structures */
>> -	opp = kzalloc(sizeof(*opp) + supply_size, GFP_KERNEL);
>> +	opp = kzalloc(sizeof(*opp) + supply_size + icc_size, GFP_KERNEL);
>> +
>>  	if (!opp)
>>  		return NULL;
>> 
>>  	/* Put the supplies at the end of the OPP structure as an empty 
>> array */
>>  	opp->supplies = (struct dev_pm_opp_supply *)(opp + 1);
>> +	opp->bandwidth = (struct dev_pm_opp_icc_bw *)(opp->supplies + 
>> supply_count);
>>  	INIT_LIST_HEAD(&opp->node);
> 
> Added this delta here.
> 
> diff --git a/drivers/opp/core.c b/drivers/opp/core.c
> index 7302f2631f8d..dfbd3d10410c 100644
> --- a/drivers/opp/core.c
> +++ b/drivers/opp/core.c
> @@ -1330,7 +1330,8 @@ struct dev_pm_opp *_opp_allocate(struct opp_table 
> *table)
> 
>         /* Put the supplies at the end of the OPP structure as an empty 
> array */
>         opp->supplies = (struct dev_pm_opp_supply *)(opp + 1);
> -       opp->bandwidth = (struct dev_pm_opp_icc_bw *)(opp->supplies +
> supply_count);
> +       if (icc_size)
> +               opp->bandwidth = (struct dev_pm_opp_icc_bw
> *)(opp->supplies + supply_count);

nice catch!
Reviewed-by: Sibi Sankar <sibis@codeaurora.org>

>         INIT_LIST_HEAD(&opp->node);
> 
>         return opp;

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project.

  reply	other threads:[~2020-05-29 11:40 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-12 12:53 [PATCH v8 00/10] Introduce OPP bandwidth bindings Georgi Djakov
2020-05-12 12:53 ` [PATCH v8 01/10] dt-bindings: opp: Introduce opp-peak-kBps and opp-avg-kBps bindings Georgi Djakov
2020-05-12 12:53 ` [PATCH v8 02/10] OPP: Add helpers for reading the binding properties Georgi Djakov
2020-05-13  6:40   ` Viresh Kumar
2020-05-12 12:53 ` [PATCH v8 03/10] interconnect: Add of_icc_get_by_index() helper function Georgi Djakov
2020-05-12 12:53 ` [PATCH v8 04/10] OPP: Add support for parsing interconnect bandwidth Georgi Djakov
2020-05-12 21:35   ` Matthias Kaehlcke
2020-05-13  6:41   ` Viresh Kumar
2020-05-13  7:01     ` Viresh Kumar
2020-05-29  4:44   ` Viresh Kumar
2020-05-29 11:39     ` Sibi Sankar [this message]
2020-05-12 12:53 ` [PATCH v8 05/10] OPP: Add sanity checks in _read_opp_key() Georgi Djakov
2020-05-12 12:53 ` [PATCH v8 06/10] OPP: Update the bandwidth on OPP frequency changes Georgi Djakov
2020-05-12 12:53 ` [PATCH v8 07/10] cpufreq: dt: Add support for interconnect bandwidth scaling Georgi Djakov
2020-05-12 12:53 ` [PATCH v8 08/10] cpufreq: dt: Validate all interconnect paths Georgi Djakov
2020-05-12 21:47   ` Matthias Kaehlcke
2020-05-13  6:42   ` Viresh Kumar
2020-05-12 12:53 ` [PATCH v8 09/10] dt-bindings: interconnect: Add interconnect-tags bindings Georgi Djakov
2020-05-13 10:19   ` Viresh Kumar
2020-05-19 18:58   ` Rob Herring
2020-05-19 19:57     ` Saravana Kannan
2020-05-20 18:51       ` Sibi Sankar
2020-05-20 19:13         ` Saravana Kannan
2020-05-26 17:08           ` Sibi Sankar
2020-05-12 12:53 ` [PATCH v8 10/10] OPP: Add support for setting interconnect-tags Georgi Djakov
2020-05-13  6:43   ` Viresh Kumar
2020-05-13  6:55 ` [PATCH v8 00/10] Introduce OPP bandwidth bindings Viresh Kumar
2020-05-13 10:10   ` Georgi Djakov
2020-05-13 10:18     ` Viresh Kumar
2020-05-18 11:41 ` [PATCH] opp: Expose bandwidth information via debugfs Viresh Kumar
2020-05-27  4:07 ` [PATCH] opp: Remove bandwidth votes when target_freq is zero Viresh Kumar
2020-05-27  4:13 ` [PATCH V2] " Viresh Kumar
2020-05-27  8:11   ` Georgi Djakov
2020-05-27 18:31   ` Sibi Sankar

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