tools/power/turbostat: Fix turbostat for AMD Zen CPUs
authorBas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Wed, 28 Apr 2021 09:09:03 +0000 (17:09 +0800)
committerLen Brown <len.brown@intel.com>
Tue, 4 May 2021 22:31:35 +0000 (18:31 -0400)
commit301b1d3a9104f4f3a8ab4171cf88d0f55d632b41
treee26f9f7e1678c46969c2783f21955fb52368fb82
parentba58ecde5eec898f647bba7cb07e6ec6ea1b875c
tools/power/turbostat: Fix turbostat for AMD Zen CPUs

It was reported that on Zen+ system turbostat started exiting,
which was tracked down to the MSR_PKG_ENERGY_STAT read failing because
offset_to_idx wasn't returning a non-negative index.

This patch combined the modification from Bingsong Si and
Bas Nieuwenhuizen and addd the MSR to the index system as alternative for
MSR_PKG_ENERGY_STATUS.

Fixes: 9972d5d84d76 ("tools/power turbostat: Enable accumulate RAPL display")
Reported-by: youling257 <youling257@gmail.com>
Tested-by: youling257 <youling257@gmail.com>
Tested-by: Kurt Garloff <kurt@garloff.de>
Tested-by: Bingsong Si <owen.si@ucloud.cn>
Tested-by: Artem S. Tashkinov <aros@gmx.com>
Co-developed-by: Bingsong Si <owen.si@ucloud.cn>
Co-developed-by: Terry Bowman <terry.bowman@amd.com>
Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
tools/power/x86/turbostat/turbostat.c