cpufreq/amd-pstate: Move perf values into a union

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By storing perf values in a union all the writes and reads can
be done atomically, removing the need for some concurrency protections.

While making this change, also drop the cached frequency values,
using inline helpers to calculate them on demand from perf value.

Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Reviewed-by: Dhananjay Ugwekar <dhananjay.ugwekar@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>

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This commit is contained in:

Mario Limonciello 2025-01-17 18:34:38 -06:00

parent a9b9b4c2a4

commit 009d1c29a4

3 changed files with 162 additions and 120 deletions

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18

drivers/cpufreq/amd-pstate-ut.c

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213

drivers/cpufreq/amd-pstate.c

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51

drivers/cpufreq/amd-pstate.h

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