Hi Suzuki,
On 7/18/2019 1:58 PM, Suzuki K Poulose wrote:
Hi Sai,
etr@6048000 {
+ compatible = "arm,coresight-tmc", "arm,primecell";
+ reg = <0x06048000 0x1000>;
+
+ clocks = <&rpmcc RPM_SMD_QDSS_CLK>, <&rpmcc
RPM_SMD_QDSS_A_CLK>;
+ clock-names = "apb_pclk", "atclk";
+ arm,scatter-gather;
Please could you confirm that you have tested the scatter-gather mode
with ETR ? Either via perf/sysfs. Please could you share your results ?
Unless verified
this is going to be fatal for the system.
Similarly for other platforms.
Yes I have tested with scatter-gather mode with ETR on all platforms
which I have posted via sysfs(not perf) before on previous versions of
this patch series and no issues were found. And I suppose this was
discussed in v2 of this patch series [1].
As said in one of the series initially [1], QCOM msm downstream kernels
have been using scatter gather mode and we haven't seen any fatal issues.
[1] https://patchwork.kernel.org/patch/10769535/
Thanks,
Sai
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
