提交 a51cc321 编写于 作者: B Bas Nieuwenhuizen 提交者: Zheng Zengkai

tools/power/turbostat: Fix turbostat for AMD Zen CPUs

stable inclusion
from stable-5.10.36
commit b24f0e3810361575759b151d5b16ac8d9be95618
bugzilla: 51867
CVE: NA

--------------------------------

commit 301b1d3a upstream.

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: 9972d5d8 ("tools/power turbostat: Enable accumulate RAPL display")
Reported-by: Nyouling257 <youling257@gmail.com>
Tested-by: Nyouling257 <youling257@gmail.com>
Tested-by: NKurt Garloff <kurt@garloff.de>
Tested-by: NBingsong Si <owen.si@ucloud.cn>
Tested-by: NArtem S. Tashkinov <aros@gmx.com>
Co-developed-by: NBingsong Si <owen.si@ucloud.cn>
Co-developed-by: NTerry Bowman <terry.bowman@amd.com>
Signed-off-by: NBas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: NChen Yu <yu.c.chen@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>
Cc: Salvatore Bonaccorso <carnil@debian.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Acked-by: NWeilong Chen <chenweilong@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
上级 c9cfd066
......@@ -297,7 +297,10 @@ int idx_to_offset(int idx)
switch (idx) {
case IDX_PKG_ENERGY:
offset = MSR_PKG_ENERGY_STATUS;
if (do_rapl & RAPL_AMD_F17H)
offset = MSR_PKG_ENERGY_STAT;
else
offset = MSR_PKG_ENERGY_STATUS;
break;
case IDX_DRAM_ENERGY:
offset = MSR_DRAM_ENERGY_STATUS;
......@@ -326,6 +329,7 @@ int offset_to_idx(int offset)
switch (offset) {
case MSR_PKG_ENERGY_STATUS:
case MSR_PKG_ENERGY_STAT:
idx = IDX_PKG_ENERGY;
break;
case MSR_DRAM_ENERGY_STATUS:
......@@ -353,7 +357,7 @@ int idx_valid(int idx)
{
switch (idx) {
case IDX_PKG_ENERGY:
return do_rapl & RAPL_PKG;
return do_rapl & (RAPL_PKG | RAPL_AMD_F17H);
case IDX_DRAM_ENERGY:
return do_rapl & RAPL_DRAM;
case IDX_PP0_ENERGY:
......
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