linux-kernel - Re: [PATCH v2 3/3] remoteproc: qcom: Add msm8996 specific changes in mss rproc driver.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 3 Mar 2017 10:23:02 -0800
From:   Stephen Boyd <sboyd@...eaurora.org>
To:     "Dwivedi, Avaneesh Kumar (avani)" <akdwived@...eaurora.org>
Cc:     bjorn.andersson@...aro.org, agross@...eaurora.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-remoteproc@...r.kernel.org
Subject: Re: [PATCH v2 3/3] remoteproc: qcom: Add msm8996 specific changes in
 mss rproc driver.

On 03/03, Dwivedi, Avaneesh Kumar (avani) wrote:
> On 2/28/2017 4:18 AM, Stephen Boyd wrote:
> >On 01/30, Avaneesh Kumar Dwivedi wrote:
> >>@@ -1213,6 +1299,47 @@ static int q6v5_remove(struct platform_device *pdev)
> >>  	return 0;
> >>  }
> >>+static const struct rproc_hexagon_res msm8996_mss = {
> >>+	.hexagon_mba_image = "mba.mbn",
> >>+	.proxy_supply = (struct qcom_mss_reg_res[]) {
> >>+		{
> >>+			.supply = "vdd_mx",
> >>+			.uV = 6,
> >>+		},
> >>+		{
> >>+			.supply = "vdd_cx",
> >>+			.uV = 7,
> >>+			.uA = 100000,
> >>+		},
> >vdd cx and vdd mx are corners. The plan is to _not_ use the
> >regulator framework for those, so treating them like supplies is
> >incorrect here.
> vdd cx and mx though in downstream are voted for corner but they are
> always ON domain upstream as per regulator team when i discussed
> with them.
> should i drop them altogether?

I would say yes, drop them. The on/off state doesn't matter here.
This code wants to max out the corner for a period of time until
the remote processor has booted far enough to make their own vote
on these RPM resources.

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