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From: Sibi Sankar <sibis@codeaurora.org>
To: Brian Norris <briannorris@chromium.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>,
	Ohad Ben-Cohen <ohad@wizery.com>,
	linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org
Subject: Re: [PATCH] remoteproc: qcom: q6v5-pil: add SCM probe dependency
Date: Tue, 09 Oct 2018 22:51:35 +0530	[thread overview]
Message-ID: <68bfe0ebe76c7a071f3c2c53a88a6508@codeaurora.org> (raw)
In-Reply-To: <20181009170232.GA86621@ban.mtv.corp.google.com>


On 2018-10-09 22:32, Brian Norris wrote:
> On Mon, Oct 08, 2018 at 11:21:25PM -0700, Bjorn Andersson wrote:
>> On Mon 08 Oct 19:08 PDT 2018, Brian Norris wrote:
>> 
>> > Similar to qcom_q6v5_pas and qcom_wcnss drivers, probe will fail if SCM
>> > is not up.
>> >
>> 
>> Thanks Brian, this dependency was introduced with the memory ownership
>> support.
> 
> That's a good point. I'm actually not that familiar with this 
> particular
> driver--I was just trying to resolve an OOPS I saw while bringing this
> driver up--but that does look correct.
> 
>> I applied it with an updated conditional to make it explicit that it
>> related to need_mem_protection, updated the commit message to describe
>> actual relationship to the memory protection mechanism and added a
>> Fixes: tag.
> 
> Your version looks good, thanks.
> 
>> Don't we also need to add the ability to disable need_mem_protection
>> when we're running ATF?
> 
> I'm not sure exactly, but FWIW I'm running some form of ATF on SDM845
> and I'm running with 'needs_memory_protection' (hence, this patch).
> 

AFAIK ATF will eventually support the hyp assign calls even though they
are just stubs as of now.

> Regards,
> Brian

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

      reply	other threads:[~2018-10-09 17:21 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-09  2:08 [PATCH] remoteproc: qcom: q6v5-pil: add SCM probe dependency Brian Norris
2018-10-09  6:21 ` Bjorn Andersson
2018-10-09 17:02   ` Brian Norris
2018-10-09 17:21     ` Sibi Sankar [this message]

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