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ACPI: CPPC: add sysfs entry for guaranteed performance

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Expose the CPPC guaranteed performance as reported by the platform through
GuaranteedPerformanceRegister.

The current value is already read in cppc_get_perf_caps() and stored in
struct cppc_perf_caps (to be used by the intel_pstate driver), so only the
attribute itself needs to be defined.

Signed-off-by: Petr Tesařík <ptesarik@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Petr Tesařík
2024-06-06 13:55:41 +02:00
committed by Rafael J. Wysocki
parent 83a7eefedc
commit 8c6294ccb5
1 changed files with 2 additions and 0 deletions
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drivers/acpi/cppc_acpi.c
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@@ -160,6 +160,7 @@ show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, highest_perf);
show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, lowest_perf);
show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, nominal_perf);
show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, lowest_nonlinear_perf);
show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, guaranteed_perf);
show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, lowest_freq);
show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, nominal_freq);
@@ -196,6 +197,7 @@ static struct attribute *cppc_attrs[] = {
&highest_perf.attr,
&lowest_perf.attr,
&lowest_nonlinear_perf.attr,
&guaranteed_perf.attr,
&nominal_perf.attr,
&nominal_freq.attr,
&lowest_freq.attr,