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| author | Gautham R. Shenoy <gautham.shenoy@amd.com> | 2025-11-07 13:11:41 +0530 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-11-07 18:37:42 +0100 |
| commit | 4fe5934db4a7187d358f1af1b3ef9b6dd59bce58 (patch) | |
| tree | 99c02536f6aabe4f5f5a5902470804fac71574a4 /rust/macros/zeroable.rs | |
| parent | 1642fabff19f768e9a8fea85d55a2d6d43ecffe3 (diff) | |
ACPI: CPPC: Detect preferred core availability on online CPUs
Commit 279f838a61f9 ("x86/amd: Detect preferred cores in
amd_get_boost_ratio_numerator()") introduced the ability to detect the
preferred core on AMD platforms by checking if there at least two
distinct highest_perf values.
However, it uses for_each_present_cpu() to iterate through all the
CPUs in the platform, which is problematic when the kernel is booted
with "nosmt=force" commandline option.
Hence limit the search to only the online CPUs.
Fixes: 279f838a61f9 ("x86/amd: Detect preferred cores in amd_get_boost_ratio_numerator()")
Reported-by: Christopher Harris <chris.harris79@gmail.com>
Closes: https://lore.kernel.org/lkml/CAM+eXpdDT7KjLV0AxEwOLkSJ2QtrsvGvjA2cCHvt1d0k2_C4Cw@mail.gmail.com/
Reviewed-by: "Mario Limonciello (AMD) (kernel.org)" <superm1@kernel.org>
Tested-by: Chrisopher Harris <chris.harris79@gmail.com>
Signed-off-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Link: https://patch.msgid.link/20251107074145.2340-2-gautham.shenoy@amd.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'rust/macros/zeroable.rs')
0 files changed, 0 insertions, 0 deletions