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ACPI: CPPC: Add ACPI disabled check to acpi_cpc_valid()

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Make acpi_cpc_valid() check if ACPI is disabled, so that its callers
don't need to check that separately.  This will also cause the AMD
pstate driver to refuse to load right away when ACPI is disabled.

Also update the warning message in amd_pstate_init() to mention the
ACPI disabled case for completeness.

Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
[ rjw: Subject edits, new changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Perry Yuan
2022-08-15 00:35:48 +08:00
committed by Rafael J. Wysocki
parent 1c23f9e627
commit a2a9d18500
4 changed files with 6 additions and 3 deletions
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2
drivers/base/arch_topology.c
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@@ -353,7 +353,7 @@ void topology_init_cpu_capacity_cppc(void)
struct cppc_perf_caps perf_caps;
int cpu;
if (likely(acpi_disabled || !acpi_cpc_valid()))
if (likely(!acpi_cpc_valid()))
return;
raw_capacity = kcalloc(num_possible_cpus(), sizeof(*raw_capacity),