cpu/intel/model_206{5,a}x: Rework acpi/cpu.asl

Use acpigen_write_processor_cnot to implement notifications to the CPU.
Automatically generate \PPKG in SSDT.

Change-Id: Iecc54e94484f5f11e0ba8ef6d1d844276e484b4d
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/29886
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/cpu/intel/model_2065x/acpi.c

@@ -331,6 +331,13 @@ void generate_cpu_entries(struct device *device)
 			acpigen_pop_len();
 		}
 	}
+
+	/* PPKG is usually used for thermal management
+	   of the first and only package. */
+	acpigen_write_processor_package("PPKG", 0, cores_per_package);
+
+	/* Add a method to notify processor nodes */
+	acpigen_write_processor_cnot(cores_per_package);
 }
 
 struct chip_operations cpu_intel_model_2065x_ops = {

src/cpu/intel/model_206ax/acpi.c

@@ -334,6 +334,13 @@ void generate_cpu_entries(struct device *device)
 			acpigen_pop_len();
 		}
 	}
+
+	/* PPKG is usually used for thermal management
+	   of the first and only package. */
+	acpigen_write_processor_package("PPKG", 0, cores_per_package);
+
+	/* Add a method to notify processor nodes */
+	acpigen_write_processor_cnot(cores_per_package);
 }
 
 struct chip_operations cpu_intel_model_206ax_ops = {

src/cpu/intel/model_206ax/acpi/cpu.asl

@@ -14,84 +14,23 @@
  * GNU General Public License for more details.
  */
 
-/* These devices are created at runtime */
+/* These come from the dynamically created CPU SSDT */
-External (\_PR.CP00, DeviceObj)
+External (\_PR.CNOT, MethodObj)
-External (\_PR.CP01, DeviceObj)
-External (\_PR.CP02, DeviceObj)
-External (\_PR.CP03, DeviceObj)
-External (\_PR.CP04, DeviceObj)
-External (\_PR.CP05, DeviceObj)
-External (\_PR.CP06, DeviceObj)
-External (\_PR.CP07, DeviceObj)
 
-/* Notify OS to re-read CPU tables, assuming ^2 CPU count */
+/* Notify OS to re-read CPU tables */
 Method (PNOT)
 {
-	If (LGreaterEqual (\PCNT, 2)) {
+	\_PR.CNOT (0x81)
-		Notify (\_PR.CP00, 0x81)  // _CST
-		Notify (\_PR.CP01, 0x81)  // _CST
-	}
-	If (LGreaterEqual (\PCNT, 4)) {
-		Notify (\_PR.CP02, 0x81)  // _CST
-		Notify (\_PR.CP03, 0x81)  // _CST
-	}
-	If (LGreaterEqual (\PCNT, 8)) {
-		Notify (\_PR.CP04, 0x81)  // _CST
-		Notify (\_PR.CP05, 0x81)  // _CST
-		Notify (\_PR.CP06, 0x81)  // _CST
-		Notify (\_PR.CP07, 0x81)  // _CST
-	}
 }
 
-/* Notify OS to re-read CPU _PPC limit, assuming ^2 CPU count */
+/* Notify OS to re-read CPU _PPC limit */
 Method (PPCN)
 {
-	If (LGreaterEqual (\PCNT, 2)) {
+	\_PR.CNOT (0x80)
-		Notify (\_PR.CP00, 0x80)  // _PPC
-		Notify (\_PR.CP01, 0x80)  // _PPC
-	}
-	If (LGreaterEqual (\PCNT, 4)) {
-		Notify (\_PR.CP02, 0x80)  // _PPC
-		Notify (\_PR.CP03, 0x80)  // _PPC
-	}
-	If (LGreaterEqual (\PCNT, 8)) {
-		Notify (\_PR.CP04, 0x80)  // _PPC
-		Notify (\_PR.CP05, 0x80)  // _PPC
-		Notify (\_PR.CP06, 0x80)  // _PPC
-		Notify (\_PR.CP07, 0x80)  // _PPC
-	}
 }
 
-/* Notify OS to re-read Throttle Limit tables, assuming ^2 CPU count */
+/* Notify OS to re-read Throttle Limit tables */
 Method (TNOT)
 {
-	If (LGreaterEqual (\PCNT, 2)) {
+	\_PR.CNOT (0x82)
-		Notify (\_PR.CP00, 0x82)  // _TPC
-		Notify (\_PR.CP01, 0x82)  // _TPC
-	}
-	If (LGreaterEqual (\PCNT, 4)) {
-		Notify (\_PR.CP02, 0x82)  // _TPC
-		Notify (\_PR.CP03, 0x82)  // _TPC
-	}
-	If (LGreaterEqual (\PCNT, 8)) {
-		Notify (\_PR.CP04, 0x82)  // _TPC
-		Notify (\_PR.CP05, 0x82)  // _TPC
-		Notify (\_PR.CP06, 0x82)  // _TPC
-		Notify (\_PR.CP07, 0x82)  // _TPC
-	}
-}
-
-/* Return a package containing enabled processor entries */
-Method (PPKG)
-{
-	If (LGreaterEqual (\PCNT, 8)) {
-		Return (Package() {\_PR.CP00, \_PR.CP01, \_PR.CP02, \_PR.CP03,
-				   \_PR.CP04, \_PR.CP05, \_PR.CP06, \_PR.CP07})
-	} ElseIf (LGreaterEqual (\PCNT, 4)) {
-		Return (Package() {\_PR.CP00, \_PR.CP01, \_PR.CP02, \_PR.CP03})
-	} ElseIf (LGreaterEqual (\PCNT, 2)) {
-		Return (Package() {\_PR.CP00, \_PR.CP01})
-	} Else {
-		Return (Package() {\_PR.CP00})
-	}
 }

src/ec/lenovo/h8/acpi/thermal.asl

@@ -46,12 +46,9 @@ Scope(\_TZ)
 		Name (_TC1, 0x02)
 		Name (_TC2, 0x05)
 
-#if !IS_ENABLED(CONFIG_CPU_INTEL_MODEL_206AX) && \
-	!IS_ENABLED(CONFIG_CPU_INTEL_MODEL_2065X) && \
-	!IS_ENABLED(CONFIG_CPU_INTEL_MODEL_306AX)
 /* Generated by acpigen */
 External (\PPKG, MethodObj)
-#endif
+
 		/* Processors used for passive cooling */
 		Method (_PSL, 0, Serialized)
 		{

src/mainboard/gigabyte/ga-b75m-d3h/acpi/thermal.asl

@@ -15,6 +15,8 @@
 
 // Thermal Zone
 
+External (\PPKG, MethodObj)
+
 Scope (\_TZ)
 {
 	ThermalZone (THRM)

src/mainboard/gigabyte/ga-b75m-d3v/acpi/thermal.asl

@@ -15,6 +15,8 @@
 
 // Thermal Zone
 
+External (\PPKG, MethodObj)
+
 Scope (\_TZ)
 {
 	ThermalZone (THRM)

src/mainboard/gigabyte/ga-h61m-s2pv/acpi/thermal.asl

@@ -15,6 +15,8 @@
 
 // Thermal Zone
 
+External (\PPKG, MethodObj)
+
 Scope (\_TZ)
 {
 	ThermalZone (THRM)

src/mainboard/google/butterfly/acpi/thermal.asl

@@ -15,6 +15,8 @@
 
 // Thermal Zone
 
+External (\PPKG, MethodObj)
+
 #define HAVE_THERMALZONE
 Scope (\_TZ)
 {

src/mainboard/google/link/acpi/thermal.asl

@@ -15,6 +15,8 @@
 
 // Thermal Zone
 
+External (\PPKG, MethodObj)
+
 #define HAVE_THERMALZONE
 Scope (\_TZ)
 {

src/mainboard/google/parrot/acpi/thermal.asl

@@ -15,6 +15,8 @@
 
 // Thermal Zone
 
+External (\PPKG, MethodObj)
+
 #define HAVE_THERMALZONE
 Scope (\_TZ)
 {

src/mainboard/google/stout/acpi/thermal.asl

@@ -15,6 +15,8 @@
 
 // Thermal Zone
 
+External (\PPKG, MethodObj)
+
 #define HAVE_THERMALZONE
 Scope (\_TZ)
 {

src/mainboard/intel/emeraldlake2/acpi/thermal.asl

@@ -15,6 +15,8 @@
 
 // Thermal Zone
 
+External (\PPKG, MethodObj)
+
 #define HAVE_THERMALZONE
 Scope (\_TZ)
 {

src/mainboard/kontron/ktqm77/acpi/thermal.asl

@@ -16,6 +16,8 @@
 
 // Thermal Zone
 
+External (\PPKG, MethodObj)
+
 #define HAVE_THERMALZONE
 Scope (\_TZ)
 {

src/mainboard/roda/rv11/acpi/thermal.asl

@@ -15,6 +15,8 @@
 
 // Thermal Zone
 
+External (\PPKG, MethodObj)
+
 #define HAVE_THERMALZONE
 Scope (\_TZ)
 {

src/mainboard/samsung/lumpy/acpi/thermal.asl

@@ -15,6 +15,8 @@
 
 // Thermal Zone
 
+External (\PPKG, MethodObj)
+
 #define HAVE_THERMALZONE
 Scope (\_TZ)
 {

src/mainboard/samsung/stumpy/acpi/thermal.asl

@@ -15,6 +15,8 @@
 
 // Thermal Zone
 
+External (\PPKG, MethodObj)
+
 Scope (\_TZ)
 {
 	ThermalZone (THRM)