config: arrowlake-h enabling

data/Makefile.am

@@ -32,6 +32,7 @@ lpmd_config_DATA = \
 	  intel_lpmd_config_F6_M170.xml \
 	  intel_lpmd_config_F6_M181.xml \
 	  intel_lpmd_config_F6_M189.xml \
+	  intel_lpmd_config_F6_M197.xml \
 	  intel_lpmd_config_F6_M204.xml
 
 EXTRA_DIST = \

data/intel_lpmd_config_F6_M197.xml

@@ -0,0 +1,244 @@
+<?xml version="1.0"?>
+
+<!--
+Intel Energy Optimizer (LPMD) configuration for Arrow Lake-H
+(family 6, model 0xC5 / 197).
+
+  Performance (PerformanceDef=-1) -> LPMD_OFF  -> all CPUs active
+  Balanced    (BalancedDef= 0)    -> LPMD_AUTO -> E+L cores only (P-cores parked)
+  Powersaver  (PowersaverDef= 1)  -> LPMD_ON   -> L-cores only
+
+Design: P-cores are NEVER used in Balanced mode. All WLT states use
+ActiveLcores=ALL + ActiveEcores=ALL (topology-portable, not hardcoded
+CPU numbers). EPP/EPB vary per WLT state to spread the power-performance
+tradeoff across E+L cores. If the user wants P-cores, they select
+Performance mode or disable LPMD.
+-->
+
+<Configuration>
+	<!--
+		CPU format example: 1,2,4..6,8-10
+		Used by the force-on path (PowersaverDef=1).
+	-->
+	<lp_mode_cpus></lp_mode_cpus>
+
+	<!--
+		EPP to use in Low Power Mode
+		0-255: Valid EPP value to use in Low Power Mode
+		   -1: Don't change EPP in Low Power Mode
+		Left empty: LPMD does not override EPP — it stays under
+		PPD (power-profiles-daemon) control.
+	-->
+	<lp_mode_epp></lp_mode_epp>
+
+	<!--
+		Mode values
+		0: Cgroup v2
+		1: Cgroup v2 isolate
+		2: CPU idle injection
+	-->
+	<Mode>1</Mode>
+
+	<!--
+		Default behavior when Performance power setting is used
+		-1: force off. (Never enter Low Power Mode)
+		 1: force on. (Always stay in Low Power Mode)
+		 0: auto. (opportunistic Low Power Mode enter/exit)
+	-->
+	<PerformanceDef>-1</PerformanceDef>
+
+	<!--
+		Default behavior when Balanced power setting is used
+		-1: force off. (Never enter Low Power Mode)
+		 1: force on. (Always stay in Low Power Mode)
+		 0: auto. (opportunistic Low Power Mode enter/exit)
+	-->
+	<BalancedDef>0</BalancedDef>
+
+	<!--
+		Default behavior when Power saver setting is used
+		-1: force off. (Never enter Low Power Mode)
+		 1: force on. (Always stay in Low Power Mode)
+		 0: auto. (opportunistic Low Power Mode enter/exit)
+	-->
+	<PowersaverDef>1</PowersaverDef>
+
+	<!--
+		Use HFI LPM hints
+		0 : No
+		1 : Yes
+	-->
+	<HfiLpmEnable>0</HfiLpmEnable>
+
+	<!--
+		Use WLT hints
+		0 : No
+		1 : Yes
+	-->
+	<WLTHintEnable>1</WLTHintEnable>
+
+	<!--
+		Use WLT hint Poll enable
+		0 : No
+		1 : Yes
+	-->
+	<WLTHintPollEnable>1</WLTHintPollEnable>
+
+	<!--
+		Use HFI SUV hints
+		0 : No
+		1 : Yes
+		NOTE: SUV mode support was removed from the daemon (May 2025).
+		The parser accepts this element but discards the value.
+		Kept here for forward compatibility if the feature is restored.
+	-->
+	<HfiSuvEnable>0</HfiSuvEnable>
+
+	<!--
+		WLT hint mask: ANDed with the raw hardware WLT hint before
+		matching against each state's WLTType.
+		15 (0x0F) keeps the low 4 bits, which covers the defined
+		WLT classifications (0=Idle, 1=Battery Life, 2=Sustained, 3=Bursty).
+		Arrow Lake currently only produces values 0-3, so mask=15
+		is a no-op today — it serves as a forward-compatibility guard
+		in case future firmware uses upper bits for extended flags.
+		Set to -1 to disable masking entirely.
+	-->
+	<WLTHintMask>15</WLTHintMask>
+
+	<!--
+		Global utilization thresholds (0-100). Used by the legacy
+		UTIL_POWER fallback path when no per-state <States> config
+		exists. Since this config defines <States>, these globals
+		are not consumed — but kept for documentation and in case
+		the <States> block is removed.
+
+		util_entry_threshold: max system-wide load (%) to enter LPM.
+		util_exit_threshold: max busiest-CPU load (%) to stay in LPM
+		  (despite the name, it gates entry matching, not exit).
+		Clearing both disables the util monitor entirely.
+
+		Disabled here: in AUTO mode, all states resolve to E+L cores
+		(P-cores always parked), so load-based exit is unnecessary —
+		the CPU mask never changes, only EPP/EPB varies by WLT state.
+
+		<util_entry_threshold>10</util_entry_threshold>
+		<util_exit_threshold>95</util_exit_threshold>
+	-->
+
+	<!--
+		EntryDelayMS / ExitDelayMS / EntryHystMS / ExitHystMS are
+		currently parsed but have no runtime effect. Omitted here.
+	-->
+
+	<!--
+		Ignore ITMT setting during LP-mode enter/exit
+		0: disable ITMT upon LP-mode enter and re-enable ITMT upon LP-mode exit
+		1: do not touch ITMT setting during LP-mode enter/exit
+
+		Arrow Lake-H supports Turbo Boost Max Technology 3.0, but ITMT
+		is effectively a no-op here for two reasons:
+		1. lpmd parks P-cores via cgroup isolation — ITMT tells the
+		   scheduler to *prefer* P-cores, the opposite of what LPM does.
+		2. On kernel 6.14+, the toggle moved from sysctl to debugfs and
+		   is only created when a driver (intel_pstate / HFI) registers
+		   ITMT priorities. On kernel 6.17 with Arrow Lake-H, the toggle
+		   file is not created, so the daemon logs ERR and continues.
+		Kept at 0 for consistency with upstream configs (F6_M170/189/204).
+	-->
+	<IgnoreITMT>0</IgnoreITMT>
+
+	<!--
+		SoC Power Slider (BalancedSliderAC/DC, SliderOffsetAC/DC): omitted.
+		The slider is a Panther Lake hardware debut — Arrow Lake does not
+		expose the slider mailbox via the int340x thermal driver, so the
+		processor_thermal_soc_slider module loads but does not register a
+		platform-profile device. See F6_M204 config for Panther Lake values.
+	-->
+
+	<!--
+		WorkLoad Type hint states for Arrow Lake-H.
+
+		P-cores are NEVER activated in Balanced/AUTO mode. All states
+		use ActiveLcores=ALL + ActiveEcores=ALL (resolved at runtime to
+		the actual E+L CPU set) so the mask is topology-portable and
+		not hardcoded to specific CPU numbers.
+
+		EPP/EPB are differentiated per WLT state so E-cores and L-cores
+		operate on a power-performance spectrum under Speed Shift /
+		Thread Director control:
+
+		  UTIL_IDLE (WLT 0+1): EPP=192 "balance_power", EPB=8
+		    Idle or unclassified workload. Power-biased but E-cores
+		    can still respond to light interactive tasks.
+
+		  UTIL_IDLE_SUSTAIN (WLT 2): EPP=64, EPB=4
+		    Sustained compute. Lets E-cores boost for real work while
+		    P-cores stay parked.
+
+		  UTIL_IDLE_BURSTY (WLT 3): EPP=128 "balance_performance", EPB=6
+		    Bursty spikes. Moderate — E-cores absorb bursts without
+		    sustaining high power draw.
+
+		WLTTypeMask=3 on UTIL_IDLE merges WLT=0 (WLT_IDLE / deep idle)
+		and WLT=1 (WLT_BATTERY_LIFE / light usage) into one state.
+
+		WARNING: Do NOT split WLT 0 and 1 into separate states with
+		different EPP/EPB values. The hardware oscillates 
+		rapidly between WLT=0 and WLT=1 (~2x/sec observed in logs), and
+		since the EPP/EPB values would genuinely differ between the
+		two states, a value-change guard (like cgroup's "skip if
+		cpumask unchanged") cannot suppress the sysfs writes — each
+		transition would produce ~cpu-cores-count x 2 real writes 
+		(ex. 16 CPUs x EPP+EPB = ~32 sysfs writes). The power cost 
+		of that I/O churn outweighs any benefit from a more aggressive 
+		EPP during brief WLT=0 moments. If deep idle power savings 
+		are needed, Power Saver mode (L-cores only, EPP=255) already 
+		provides that.
+
+		Note on invalid/unexpected WLT values: some platform configs
+		(e.g. F6_M189) use a wildcard state with no WLTType to
+		catch all unmatched WLT values including invalid ones. Here,
+		WLTTypeMask=3 provides targeted handling — WLT 0 and 1 are
+		explicitly matched to UTIL_IDLE, while invalid or out-of-
+		range values (e.g. WLT_INVALID=4 from sysfs read failures)
+		match no state and the daemon holds its current state
+		unchanged (STATE_NONE in choose_next_state).
+	-->
+	<States>
+		<CPUFamily> 6 </CPUFamily>
+		<CPUModel> 197 </CPUModel>
+		<CPUConfig> * </CPUConfig>
+		<State>
+			<ID> 1 </ID>
+			<Name> UTIL_IDLE </Name>
+			<WLTTypeMask> 3 </WLTTypeMask>
+			<ActiveLcores>ALL</ActiveLcores>
+			<ActiveEcores>ALL</ActiveEcores>
+			<IRQMigrate>1</IRQMigrate>
+			<EPP>192</EPP>
+			<EPB>8</EPB>
+		</State>
+		<State>
+			<ID> 2 </ID>
+			<Name> UTIL_IDLE_SUSTAIN </Name>
+			<WLTType> 2 </WLTType>
+			<ActiveLcores>ALL</ActiveLcores>
+			<ActiveEcores>ALL</ActiveEcores>
+			<IRQMigrate>1</IRQMigrate>
+			<EPP>64</EPP>
+			<EPB>4</EPB>
+		</State>
+		<State>
+			<ID> 3 </ID>
+			<Name> UTIL_IDLE_BURSTY </Name>
+			<WLTType> 3 </WLTType>
+			<ActiveLcores>ALL</ActiveLcores>
+			<ActiveEcores>ALL</ActiveEcores>
+			<IRQMigrate>1</IRQMigrate>
+			<EPP>128</EPP>
+			<EPB>6</EPB>
+		</State>
+	</States>
+
+</Configuration>

src/lpmd_cpu.c

@@ -23,9 +23,10 @@ static struct cpu_model_entry id_table[] = {
 		{ 6, 0xbf }, // Raptorlake S
 		{ 6, 0xaa }, // Meteorlake
 		{ 6, 0xac }, // Meteorlake
-		{ 6, 0xb5 }, // ArrowLake
+		{ 6, 0xb5 }, // Arrowlake U
 		{ 6, 0xbd }, // Lunarlake
 		{ 6, 0xcc }, // Pantherlake
+		{ 6, 0xc5 }, // Arrowlake H
 		{ 0, 0 } // Last Invalid entry
 };