Datasheet

Datasheet, Volume 2 483
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Processor Uncore Configuration Registers
4.4.2.17 P_STATE_LIMITS—P-State Limits Register
This register allows software to limit the maximum frequency allowed during run-time.
PCODE will sample this register in slow loop. Functionality added in B-step.
P_STATE_LIMITS
Bus: 1 Device: 10 Function: 0 Offset: D8h
Bit Attr
Reset
Value
Description
31 RW-KL 0b
Lock
This bit will lock all settings in this register.
30:16 RV 0h Reserved
15:8 RW-L 00h
P-State Offset
Hardware P-State control on the relative offset from P1. The offset field
determines the number of bins to drop P1 (dynamically).
7:0 RW-L FFh
P-State Limitation
This field indicates the maximum frequency limit allowed during run-time.