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author | Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com> | 2024-07-30 04:49:18 +0000 |
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committer | Ingo Molnar <mingo@kernel.org> | 2024-09-05 12:02:14 +0200 |
commit | 8d72eba1cf8cecd76a2b4c1dd7673c2dc775f514 (patch) | |
tree | c1214a67224e4bb4313ad399dd024c2b114a14e6 /fs/init.c | |
parent | 2ab9d830262c132ab5db2f571003d80850d56b2a (diff) |
perf/x86/rapl: Fix the energy-pkg event for AMD CPUs
After commit:
63edbaa48a57 ("x86/cpu/topology: Add support for the AMD 0x80000026 leaf")
... on AMD processors that support extended CPUID leaf 0x80000026, the
topology_die_cpumask() and topology_logical_die_id() macros no longer
return the package cpumask and package ID, instead they return the CCD
(Core Complex Die) mask and ID respectively.
This leads to the energy-pkg event scope to be modified to CCD instead of package.
So, change the PMU scope for AMD and Hygon back to package.
On a 12 CCD 1 Package AMD Zen4 Genoa machine:
Before:
$ cat /sys/devices/power/cpumask
0,8,16,24,32,40,48,56,64,72,80,88.
The expected cpumask here is supposed to be just "0", as it is a package
scope event, only one CPU will be collecting the event for all the CPUs in
the package.
After:
$ cat /sys/devices/power/cpumask
0
[ mingo: Cleaned up the changelog ]
Signed-off-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20240904100934.3260-1-Dhananjay.Ugwekar@amd.com
Diffstat (limited to 'fs/init.c')
0 files changed, 0 insertions, 0 deletions