From: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
To: Suzuki K Poulose <suzuki.poulose@arm.com>,
robh+dt@kernel.org, mathieu.poirier@linaro.org,
leo.yan@linaro.org, alexander.shishkin@linux.intel.com,
andy.gross@linaro.org, david.brown@linaro.org,
vivek.gautam@codeaurora.org, dianders@chromium.org,
sboyd@kernel.org, bjorn.andersson@linaro.org,
devicetree@vger.kernel.org, mark.rutland@arm.com
Cc: rnayak@codeaurora.org, sibis@codeaurora.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org
Subject: Re: [PATCHv2 2/4] arm64: dts: qcom: msm8996: Add Coresight support
Date: Fri, 18 Jan 2019 17:18:01 +0530 [thread overview]
Message-ID: <6543ad5c-bbcf-b3ec-332c-115e8e3d0825@codeaurora.org> (raw)
In-Reply-To: <1311e78a-21f6-6470-7861-39b3499974ce@arm.com>
Hi Suzuki,
On 1/18/2019 4:27 PM, Suzuki K Poulose wrote:
>
> If you want to use the scatter-gather mode, you must add
> "arm,scatter-gather"
> property to the node here.
>
> Have you tested the scatter-gather mode on the chip ? Does that work at
> all ?
> Note: You could try this by setting a buffer_size > 1M for the ETR and use
> it as a sink from the sysfs mode.
>
Yes the chip supports scatter-gather mode[1]. But is it required in
dt node since it's an optional property?
[1]
https://source.codeaurora.org/quic/la/kernel/msm-3.18/tree/arch/arm/boot/dts/qcom/msm8996-coresight-v3.dtsi?h=LA.BR.5.6#n24
Thanks,
Sai
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
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next prev parent reply other threads:[~2019-01-18 11:48 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-18 8:25 [PATCHv2 0/4] Add coresight support for SDM845 and MSM8996 Sai Prakash Ranjan
2019-01-18 8:25 ` [PATCHv2 1/4] arm64: dts: qcom: sdm845: Add Coresight support Sai Prakash Ranjan
2019-01-18 8:25 ` [PATCHv2 2/4] arm64: dts: qcom: msm8996: " Sai Prakash Ranjan
2019-01-18 10:57 ` Suzuki K Poulose
2019-01-18 11:48 ` Sai Prakash Ranjan [this message]
2019-01-18 12:04 ` Suzuki K Poulose
2019-01-18 12:08 ` Sai Prakash Ranjan
2019-01-18 8:25 ` [PATCHv2 3/4] coresight: etm4x: Add support to enable ETMv4.2 Sai Prakash Ranjan
2019-01-18 8:25 ` [PATCHv2 4/4] arm64: dts: qcom: sdm845: Remove the duplicate header inclusion Sai Prakash Ranjan
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