From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Akhil P Oommen <quic_akhilpo@quicinc.com>
Cc: freedreno <freedreno@lists.freedesktop.org>,
dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
Rob Clark <robdclark@gmail.com>,
Stephen Boyd <swboyd@chromium.org>,
Douglas Anderson <dianders@chromium.org>,
Andy Gross <agross@kernel.org>,
Konrad Dybcio <konrad.dybcio@somainline.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Michael Turquette <mturquette@baylibre.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Rob Herring <robh+dt@kernel.org>, Stephen Boyd <sboyd@kernel.org>,
devicetree@vger.kernel.org, linux-clk@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/5] clk/qcom: Support gdsc collapse polling using 'reset' inteface
Date: Tue, 9 Aug 2022 16:05:43 -0500 [thread overview]
Message-ID: <YvLMJ2yQRhBFp2y9@baldur> (raw)
In-Reply-To: <1659172664-10345-1-git-send-email-quic_akhilpo@quicinc.com>
On Sat 30 Jul 04:17 CDT 2022, Akhil P Oommen wrote:
>
> Some clients like adreno gpu driver would like to ensure that its gdsc
> is collapsed at hardware during a gpu reset sequence. This is because it
> has a votable gdsc which could be ON due to a vote from another subsystem
> like tz, hyp etc or due to an internal hardware signal. To allow
> this, gpucc driver can expose an interface to the client driver using
> reset framework. Using this the client driver can trigger a polling within
> the gdsc driver.
>
> This series is rebased on top of linus's master branch.
>
> Related discussion: https://patchwork.freedesktop.org/patch/493144/
>
Forgive me if I'm assuming too much, but isn't this an extension of:
85a3d920d30a ("clk: qcom: Add a dummy enable function for GX gdsc")
With the additional requirement that disable should really ensure that
the GDSC is turned off?
Regards,
Bjorn
>
> Akhil P Oommen (5):
> dt-bindings: clk: qcom: Support gpu cx gdsc reset
> clk: qcom: Allow custom reset ops
> clk: qcom: gpucc-sc7280: Add cx collapse reset support
> clk: qcom: gdsc: Add a reset op to poll gdsc collapse
> arm64: dts: qcom: sc7280: Add Reset support for gpu
>
> arch/arm64/boot/dts/qcom/sc7280.dtsi | 3 +++
> drivers/clk/qcom/gdsc.c | 23 +++++++++++++++++++----
> drivers/clk/qcom/gdsc.h | 7 +++++++
> drivers/clk/qcom/gpucc-sc7280.c | 6 ++++++
> drivers/clk/qcom/reset.c | 6 ++++++
> drivers/clk/qcom/reset.h | 2 ++
> include/dt-bindings/clock/qcom,gpucc-sc7280.h | 3 +++
> 7 files changed, 46 insertions(+), 4 deletions(-)
>
> --
> 2.7.4
>
WARNING: multiple messages have this Message-ID (diff)
From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Akhil P Oommen <quic_akhilpo@quicinc.com>
Cc: devicetree@vger.kernel.org, Stephen Boyd <sboyd@kernel.org>,
linux-arm-msm@vger.kernel.org,
Michael Turquette <mturquette@baylibre.com>,
Konrad Dybcio <konrad.dybcio@somainline.org>,
Douglas Anderson <dianders@chromium.org>,
dri-devel@lists.freedesktop.org,
Stephen Boyd <swboyd@chromium.org>,
Rob Herring <robh+dt@kernel.org>, Andy Gross <agross@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
freedreno <freedreno@lists.freedesktop.org>,
linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/5] clk/qcom: Support gdsc collapse polling using 'reset' inteface
Date: Tue, 9 Aug 2022 16:05:43 -0500 [thread overview]
Message-ID: <YvLMJ2yQRhBFp2y9@baldur> (raw)
In-Reply-To: <1659172664-10345-1-git-send-email-quic_akhilpo@quicinc.com>
On Sat 30 Jul 04:17 CDT 2022, Akhil P Oommen wrote:
>
> Some clients like adreno gpu driver would like to ensure that its gdsc
> is collapsed at hardware during a gpu reset sequence. This is because it
> has a votable gdsc which could be ON due to a vote from another subsystem
> like tz, hyp etc or due to an internal hardware signal. To allow
> this, gpucc driver can expose an interface to the client driver using
> reset framework. Using this the client driver can trigger a polling within
> the gdsc driver.
>
> This series is rebased on top of linus's master branch.
>
> Related discussion: https://patchwork.freedesktop.org/patch/493144/
>
Forgive me if I'm assuming too much, but isn't this an extension of:
85a3d920d30a ("clk: qcom: Add a dummy enable function for GX gdsc")
With the additional requirement that disable should really ensure that
the GDSC is turned off?
Regards,
Bjorn
>
> Akhil P Oommen (5):
> dt-bindings: clk: qcom: Support gpu cx gdsc reset
> clk: qcom: Allow custom reset ops
> clk: qcom: gpucc-sc7280: Add cx collapse reset support
> clk: qcom: gdsc: Add a reset op to poll gdsc collapse
> arm64: dts: qcom: sc7280: Add Reset support for gpu
>
> arch/arm64/boot/dts/qcom/sc7280.dtsi | 3 +++
> drivers/clk/qcom/gdsc.c | 23 +++++++++++++++++++----
> drivers/clk/qcom/gdsc.h | 7 +++++++
> drivers/clk/qcom/gpucc-sc7280.c | 6 ++++++
> drivers/clk/qcom/reset.c | 6 ++++++
> drivers/clk/qcom/reset.h | 2 ++
> include/dt-bindings/clock/qcom,gpucc-sc7280.h | 3 +++
> 7 files changed, 46 insertions(+), 4 deletions(-)
>
> --
> 2.7.4
>
next prev parent reply other threads:[~2022-08-09 21:07 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-30 9:17 [PATCH 0/5] clk/qcom: Support gdsc collapse polling using 'reset' inteface Akhil P Oommen
2022-07-30 9:17 ` Akhil P Oommen
2022-07-30 9:17 ` [PATCH 1/5] dt-bindings: clk: qcom: Support gpu cx gdsc reset Akhil P Oommen
2022-07-30 9:17 ` Akhil P Oommen
2022-08-03 6:37 ` Krzysztof Kozlowski
2022-08-03 6:37 ` Krzysztof Kozlowski
2022-07-30 9:17 ` [PATCH 2/5] clk: qcom: Allow custom reset ops Akhil P Oommen
2022-07-30 9:17 ` Akhil P Oommen
2022-07-30 13:10 ` kernel test robot
2022-08-01 15:20 ` [Freedreno] " Akhil P Oommen
2022-08-01 15:20 ` Akhil P Oommen
2022-08-01 15:20 ` Akhil P Oommen
2022-08-02 7:06 ` Dmitry Baryshkov
2022-08-02 7:06 ` Dmitry Baryshkov
2022-07-30 9:17 ` [PATCH 3/5] clk: qcom: gpucc-sc7280: Add cx collapse reset support Akhil P Oommen
2022-07-30 9:17 ` Akhil P Oommen
2022-08-02 7:02 ` Dmitry Baryshkov
2022-08-02 7:02 ` Dmitry Baryshkov
2022-08-02 7:15 ` Dmitry Baryshkov
2022-08-02 7:15 ` Dmitry Baryshkov
2022-08-03 10:20 ` Akhil P Oommen
2022-08-03 10:20 ` Akhil P Oommen
2022-07-30 9:17 ` [PATCH 4/5] clk: qcom: gdsc: Add a reset op to poll gdsc collapse Akhil P Oommen
2022-07-30 9:17 ` Akhil P Oommen
2022-07-30 9:17 ` [PATCH 5/5] arm64: dts: qcom: sc7280: Add Reset support for gpu Akhil P Oommen
2022-07-30 9:17 ` Akhil P Oommen
2022-08-02 7:02 ` [PATCH 0/5] clk/qcom: Support gdsc collapse polling using 'reset' inteface Dmitry Baryshkov
2022-08-02 7:02 ` Dmitry Baryshkov
2022-08-02 18:32 ` Rob Clark
2022-08-02 18:32 ` Rob Clark
2022-08-03 10:01 ` Akhil P Oommen
2022-08-03 10:01 ` Akhil P Oommen
2022-08-09 21:05 ` Bjorn Andersson [this message]
2022-08-09 21:05 ` Bjorn Andersson
2022-08-11 11:15 ` Akhil P Oommen
2022-08-11 11:15 ` Akhil P Oommen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YvLMJ2yQRhBFp2y9@baldur \
--to=bjorn.andersson@linaro.org \
--cc=agross@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=dianders@chromium.org \
--cc=dri-devel@lists.freedesktop.org \
--cc=freedreno@lists.freedesktop.org \
--cc=konrad.dybcio@somainline.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-clk@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mturquette@baylibre.com \
--cc=p.zabel@pengutronix.de \
--cc=quic_akhilpo@quicinc.com \
--cc=robdclark@gmail.com \
--cc=robh+dt@kernel.org \
--cc=sboyd@kernel.org \
--cc=swboyd@chromium.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.