RD-N2-Cfg1 platform supports only the platform co-ordinated LPI. So fix
the LPI Level ID value accordingly.
Additionally, as this platform does not support residency counter, clear
the residency counter frequency from _LPI object's control method. As
the cpus are directly connected to the interconnect on this platform,
remove the cluster _LPI control method as well.
Signed-off-by: Pranav Madhu <pranav.ma...@arm.com>
Reviewed-by: Pierre Gondois <pierre.gond...@arm.com>
Reviewed-by: Thomas Abraham <thomas.abra...@arm.com>
---
Platform/ARM/SgiPkg/AcpiTables/RdN2Cfg1/Dsdt.asl | 54 ++------------------
1 file changed, 4 insertions(+), 50 deletions(-)
diff --git a/Platform/ARM/SgiPkg/AcpiTables/RdN2Cfg1/Dsdt.asl
b/Platform/ARM/SgiPkg/AcpiTables/RdN2Cfg1/Dsdt.asl
index b6decc77f480..2e9e588806c6 100644
--- a/Platform/ARM/SgiPkg/AcpiTables/RdN2Cfg1/Dsdt.asl
+++ b/Platform/ARM/SgiPkg/AcpiTables/RdN2Cfg1/Dsdt.asl
@@ -68,38 +68,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD",
"ARMSGI",
Return (Arg3)
}
- Name (CLPI, Package () { /* LPI for Cluster, support 1 LPI state */
- 0, // Version
- 0, // Level Index
- 1, // Count
- Package () { // Power Gating state for Cluster
- 2500, // Min residency (uS)
- 1150, // Wake latency (uS)
- 1, // Flags
- 1, // Arch Context Flags
- 100, // Residency Counter Frequency
- 0, // No Parent State
- 0x00000020, // Integer Entry method
- ResourceTemplate () { // Null Residency Counter
- Register (SystemMemory, 0, 0, 0, 0)
- },
- ResourceTemplate () { // Null Usage Counter
- Register (SystemMemory, 0, 0, 0, 0)
- },
- "LPI2-Cluster"
- },
- })
-
Name (PLPI, Package () { /* LPI for Processor, support 2 LPI states */
0, // Version
- 1, // Level Index
+ 0, // Level Index
2, // Count
Package () { // WFI for CPU
1, // Min residency (uS)
1, // Wake latency (uS)
1, // Flags
0, // Arch Context lost Flags (no loss)
- 100, // Residency Counter Frequency
+ 0, // Residency Counter Frequency
0, // No parent state
ResourceTemplate () { // Register Entry method
Register (FFixedHW,
@@ -122,8 +100,8 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD",
"ARMSGI",
350, // Wake latency (uS)
1, // Flags
1, // Arch Context lost Flags (Core context lost)
- 100, // Residency Counter Frequency
- 1, // Parent node can be in any shallower state
+ 0, // Residency Counter Frequency
+ 0, // No parent state
ResourceTemplate () { // Register Entry method
Register (FFixedHW,
32, // Bit Width
@@ -145,9 +123,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD",
"ARMSGI",
Device (CL00) { // Cluster 0
Name (_HID, "ACPI0010")
Name (_UID, 0)
- Method (_LPI, 0, NotSerialized) {
- Return (\_SB.CLPI)
- }
Device (CP00) { // Neoverse N2 core 0
Name (_HID, "ACPI0007")
@@ -172,9 +147,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD",
"ARMSGI",
Device (CL01) { // Cluster 1
Name (_HID, "ACPI0010")
Name (_UID, 1)
- Method (_LPI, 0, NotSerialized) {
- Return (\_SB.CLPI)
- }
Device (CP01) { // Neoverse N2 core 1
Name (_HID, "ACPI0007")
@@ -199,9 +171,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD",
"ARMSGI",
Device (CL02) { // Cluster 2
Name (_HID, "ACPI0010")
Name (_UID, 2)
- Method (_LPI, 0, NotSerialized) {
- Return (\_SB.CLPI)
- }
Device (CP02) { // Neoverse N2 core 2
Name (_HID, "ACPI0007")
@@ -226,9 +195,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD",
"ARMSGI",
Device (CL03) { // Cluster 3
Name (_HID, "ACPI0010")
Name (_UID, 3)
- Method (_LPI, 0, NotSerialized) {
- Return (\_SB.CLPI)
- }
Device (CP03) { // Neoverse N2 core 3
Name (_HID, "ACPI0007")
@@ -253,9 +219,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD",
"ARMSGI",
Device (CL04) { // Cluster 4
Name (_HID, "ACPI0010")
Name (_UID, 4)
- Method (_LPI, 0, NotSerialized) {
- Return (\_SB.CLPI)
- }
Device (CP04) { // Neoverse N2 core 4
Name (_HID, "ACPI0007")
@@ -280,9 +243,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD",
"ARMSGI",
Device (CL05) { // Cluster 5
Name (_HID, "ACPI0010")
Name (_UID, 5)
- Method (_LPI, 0, NotSerialized) {
- Return (\_SB.CLPI)
- }
Device (CP05) { // Neoverse N2 core 5
Name (_HID, "ACPI0007")
@@ -307,9 +267,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD",
"ARMSGI",
Device (CL06) { // Cluster 6
Name (_HID, "ACPI0010")
Name (_UID, 6)
- Method (_LPI, 0, NotSerialized) {
- Return (\_SB.CLPI)
- }
Device (CP06) { // Neoverse N2 core 6
Name (_HID, "ACPI0007")
@@ -334,9 +291,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD",
"ARMSGI",
Device (CL07) { // Cluster 7
Name (_HID, "ACPI0010")
Name (_UID, 7)
- Method (_LPI, 0, NotSerialized) {
- Return (\_SB.CLPI)
- }
Device (CP07) { // Neoverse N2 core 7
Name (_HID, "ACPI0007")
--
2.25.1
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