From: Andy Gross <andy.gross@linaro.org>
To: "Gupta, Puja" <pujag@codeaurora.org>
Cc: Stanimir Varbanov <stanimir.varbanov@linaro.org>,
Ohad Ben-Cohen <ohad@wizery.com>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Stephen Boyd <sboyd@codeaurora.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Rob Clark <robdclark@gmail.com>,
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org
Subject: Re: [PATCH 2/4] firmware: qcom: scm: add iommu scm calls for pg table
Date: Tue, 30 Aug 2016 16:15:32 -0500 [thread overview]
Message-ID: <20160830211532.GE24683@hector.attlocal.net> (raw)
In-Reply-To: <14e4872a-7775-4221-140a-e08d28ae9098@codeaurora.org>
On Wed, Aug 24, 2016 at 11:35:29AM -0700, Gupta, Puja wrote:
> On 8/19/2016 8:53 AM, Stanimir Varbanov wrote:
> >Those two scm calls are used to get the size of secure iommu
> >page table and to pass physical memory address for this page
> >table. The calls are used by remoteproc venus driver to load
> >the firmware.
> Do we really need these additional scm calls for venus? why can't we just
> reuse existing __qcom_scm_pas_mem_setup() call?
Keep in mind this is with the smmu-v1 on 8916. It seems like the downstream
kernel has to do extra stuff when dealing with the older smmu. The newer
platforms handle this quasi-transparently.
Regards,
Andy
next prev parent reply other threads:[~2016-08-30 21:15 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-19 15:53 [PATCH 0/4] Venus remoteproc driver Stanimir Varbanov
2016-08-19 15:53 ` [PATCH 1/4] firmware: qcom: scm: add a video command for state setting Stanimir Varbanov
2016-08-19 15:53 ` [PATCH 2/4] firmware: qcom: scm: add iommu scm calls for pg table Stanimir Varbanov
2016-08-22 16:29 ` kbuild test robot
2016-08-24 18:35 ` Gupta, Puja
2016-08-25 9:08 ` Stanimir Varbanov
2016-08-30 21:15 ` Andy Gross [this message]
2016-08-19 15:53 ` [PATCH 3/4] dt-binding: remoteproc: venus rproc dt binding document Stanimir Varbanov
2016-08-23 17:32 ` Rob Herring
2016-08-23 18:21 ` Bjorn Andersson
2016-08-24 15:36 ` Stanimir Varbanov
2016-08-25 0:05 ` Bjorn Andersson
2016-08-25 11:10 ` Stanimir Varbanov
2016-08-26 22:23 ` Bjorn Andersson
2016-08-29 11:48 ` Stanimir Varbanov
2016-08-30 17:17 ` Bjorn Andersson
2016-09-01 14:58 ` Stanimir Varbanov
2016-09-01 20:46 ` Andy Gross
2016-09-02 11:52 ` Marek Szyprowski
2016-09-02 20:12 ` Bjorn Andersson
2016-09-07 11:52 ` Stanimir Varbanov
2016-09-15 8:46 ` Marek Szyprowski
2016-08-19 15:53 ` [PATCH 4/4] remoteproc: qcom: add Venus video core firmware loader driver Stanimir Varbanov
2016-10-18 16:23 ` Stanimir Varbanov
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