[edk2-devel] [edk2-platforms][PATCH V1 14/17] Platform/Sgi: ACPI CPPC support for RD-V1 quad-chip platform

Pranav Madhu pranav.madhu at arm.com
Wed Apr 28 12:35:57 UTC 2021


Enable ACPI CPPC mechanism for RD-V1 quad-chip platform as defined by
the ACPI specification. The implementation uses AMU registers accessible
as Fixed-feature Hardware (FFixedHW) for monitoring the performance.
Non-secure SCMI fastchannels are used to communicate with SCP to set the
desired performance. RD-V1 quad-chip platform does not support CPPC
revision 1 and below. So update the _OSC method to let OSPM know about
this fact.

Signed-off-by: Pranav Madhu <pranav.madhu at arm.com>
---
 Platform/ARM/SgiPkg/AcpiTables/RdV1Mc/Dsdt.asl | 162 ++++++++++++++++++++
 1 file changed, 162 insertions(+)

diff --git a/Platform/ARM/SgiPkg/AcpiTables/RdV1Mc/Dsdt.asl b/Platform/ARM/SgiPkg/AcpiTables/RdV1Mc/Dsdt.asl
index 82eb91638426..622d522532a3 100644
--- a/Platform/ARM/SgiPkg/AcpiTables/RdV1Mc/Dsdt.asl
+++ b/Platform/ARM/SgiPkg/AcpiTables/RdV1Mc/Dsdt.asl
@@ -29,6 +29,12 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
             And (CAP0, Not (OSC_CAP_OS_INITIATED_LPI), CAP0)
             Or (STS0, OSC_STS_CAPABILITY_MASKED, STS0)
           }
+
+          If (And (CAP0, OSC_CAP_CPPC_SUPPORT)) {
+            /* CPPC revision 1 and below not supported */
+            And (CAP0, Not (OSC_CAP_CPPC_SUPPORT), CAP0)
+            Or (STS0, OSC_STS_CAPABILITY_MASKED, STS0)
+          }
         } Else {
           And (STS0, Not (OSC_STS_MASK), STS0)
           Or (STS0, Or (OSC_STS_FAILURE, OSC_STS_UNRECOGNIZED_REV), STS0)
@@ -102,6 +108,15 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 0)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x06000500, 0x06000504, 20, 130, 130, 65, 65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (0)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -117,6 +132,15 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 1)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x06000518, 0x0600051C, 20, 130, 130, 65, 65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (1)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -132,6 +156,15 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 2)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x06000530, 0x06000534, 20, 130, 130, 65, 65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (2)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -147,6 +180,15 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 3)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x06000548, 0x0600054C, 20, 130, 130, 65, 65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (3)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -162,6 +204,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 4)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x040006000500, 0x040006000504, 20, 130, 130, 65,
+                             65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (4)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -177,6 +229,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 5)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x040006000518, 0x04000600051C, 20, 130, 130, 65,
+                             65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (5)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -192,6 +254,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 6)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x040006000530, 0x040006000534, 20, 130, 130, 65,
+                             65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (6)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -207,6 +279,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 7)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x040006000548, 0x04000600054C, 20, 130, 130, 65,
+                             65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (7)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -222,6 +304,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 8)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x080006000500, 0x080006000504, 20, 130, 130, 65,
+                             65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (8)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -237,6 +329,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 9)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x080006000518, 0x08000600051C, 20, 130, 130, 65,
+                             65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (9)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -252,6 +354,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 10)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x080006000530, 0x080006000534, 20, 130, 130, 65,
+                             65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (10)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -267,6 +379,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 11)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x080006000548, 0x08000600054C, 20, 130, 130, 65,
+                             65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (11)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -282,6 +404,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 12)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x0C0006000500, 0x0C0006000504, 20, 130, 130, 65,
+                             65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (12)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -297,6 +429,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 13)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x0C0006000518, 0x0C000600051C, 20, 130, 130, 65,
+                             65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (13)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -312,6 +454,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 14)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x0C0006000530, 0x0C0006000534, 20, 130, 130, 65,
+                             65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (14)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
@@ -327,6 +479,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", "ARMSGI",
         Name (_UID, 15)
         Name (_STA, 0xF)
 
+        Name (_CPC, Package()
+          CPPC_PACKAGE_INIT (0x0C0006000548, 0x0C000600054C, 20, 130, 130, 65,
+                             65, 5)
+        )
+
+        Name (_PSD, Package () {
+          Package ()
+            PSD_INIT (15)
+        })
+
         Method (_LPI, 0, NotSerialized) {
           Return (\_SB.PLPI)
         }
-- 
2.17.1



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