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-rw-r--r--src/soc/amd/common/block/acpi/cpu_power_state.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/soc/amd/common/block/acpi/cpu_power_state.c b/src/soc/amd/common/block/acpi/cpu_power_state.c
index d518ea082e..2cfc3cb57c 100644
--- a/src/soc/amd/common/block/acpi/cpu_power_state.c
+++ b/src/soc/amd/common/block/acpi/cpu_power_state.c
@@ -46,6 +46,11 @@ static uint32_t get_pstate_core_power(union pstate_msr pstate_reg)
return power_in_mw;
}
+static uint32_t get_visible_pstate_count(void)
+{
+ return (rdmsr(PS_LIM_REG).lo & PS_LIM_MAX_VAL_MASK) >> PS_MAX_VAL_SHFT;
+}
+
/*
* Populate structure describing enabled p-states and return count of enabled p-states.
*/
@@ -57,7 +62,7 @@ static size_t get_pstate_info(struct acpi_sw_pstate *pstate_values,
uint32_t max_pstate;
pstate_count = 0;
- max_pstate = (rdmsr(PS_LIM_REG).lo & PS_LIM_MAX_VAL_MASK) >> PS_MAX_VAL_SHFT;
+ max_pstate = get_visible_pstate_count();
for (pstate = 0; pstate <= max_pstate; pstate++) {
pstate_reg.raw = rdmsr(PSTATE_MSR(pstate)).raw;