diff options
Diffstat (limited to 'src/soc/intel/broadwell/acpi/ctdp.asl')
| -rw-r--r-- | src/soc/intel/broadwell/acpi/ctdp.asl | 80 |
1 files changed, 39 insertions, 41 deletions
diff --git a/src/soc/intel/broadwell/acpi/ctdp.asl b/src/soc/intel/broadwell/acpi/ctdp.asl index 83914826f2..b18ec78ecd 100644 --- a/src/soc/intel/broadwell/acpi/ctdp.asl +++ b/src/soc/intel/broadwell/acpi/ctdp.asl @@ -9,8 +9,7 @@ Scope (\_SB.PCI0.MCHC) Name (CTCU, 2) /* CTDP Up Select */ Name (SPL1, 0) /* Saved PL1 value */ - OperationRegion (MCHB, SystemMemory, - Add (MCH_BASE_ADDRESS, 0x5000), 0x1000) + OperationRegion (MCHB, SystemMemory, MCH_BASE_ADDRESS + 0x5000, 0x1000) Field (MCHB, DWordAcc, Lock, Preserve) { Offset (0x930), /* PACKAGE_POWER_SKU */ @@ -51,7 +50,7 @@ Scope (\_SB.PCI0.MCHC) } /* - * Search CPU0 _PSS looking for control=arg0 and then + * Search CPU0 _PSS looking for control = arg0 and then * return previous P-state entry number for new _PPC * * Format of _PSS: @@ -62,17 +61,16 @@ Scope (\_SB.PCI0.MCHC) External (\_SB.CP00._PSS) Method (PSSS, 1, NotSerialized) { - Store (One, Local0) /* Start at P1 */ - Store (SizeOf (\_SB.CP00._PSS), Local1) + Local0 = 1 /* Start at P1 */ + Local1 = SizeOf (\_SB.CP00._PSS) - While (LLess (Local0, Local1)) { + While (Local0 < Local1) { /* Store _PSS entry Control value to Local2 */ - ShiftRight (DeRefOf (Index (DeRefOf (Index - (\_SB.CP00._PSS, Local0)), 4)), 8, Local2) - If (LEqual (Local2, Arg0)) { - Return (Subtract (Local0, 1)) + Local2 = DeRefOf (Index (DeRefOf (Index (\_SB.CP00._PSS, Local0)), 4)) >> 8 + If (Local2 == Arg0) { + Return (Local0 - 1) } - Increment (Local0) + Local0++ } Return (0) @@ -83,7 +81,7 @@ Scope (\_SB.PCI0.MCHC) { /* Haswell ULT PL2 = 25W */ /* FIXME: update for broadwell */ - Return (Multiply (25, 8)) + Return (25 * 8) } /* Set Config TDP Down */ @@ -92,31 +90,31 @@ Scope (\_SB.PCI0.MCHC) If (Acquire (CTCM, 100)) { Return (0) } - If (LEqual (CTCD, CTCC)) { + If (CTCD == CTCC) { Release (CTCM) Return (0) } - Store ("Set TDP Down", Debug) + Debug = "Set TDP Down" /* Set CTC */ - Store (CTCD, CTCS) + CTCS = CTCD /* Set TAR */ - Store (TARD, TARS) + TARS = TARD /* Set PPC limit and notify OS */ - Store (PSSS (TARD), PPCM) + PPCM = PSSS (TARD) PPCN () /* Set PL2 */ - Store (CPL2 (CTDD), PL2V) + PL2V = CPL2 (CTDD) /* Set PL1 */ - Store (CTDD, PL1V) + PL1V = CTDD /* Store the new TDP Down setting */ - Store (CTCD, CTCC) + CTCC = CTCD Release (CTCM) Return (1) @@ -128,31 +126,31 @@ Scope (\_SB.PCI0.MCHC) If (Acquire (CTCM, 100)) { Return (0) } - If (LEqual (CTCN, CTCC)) { + If (CTCN == CTCC) { Release (CTCM) Return (0) } - Store ("Set TDP Nominal", Debug) + Debug = "Set TDP Nominal" /* Set PL1 */ - Store (CTDN, PL1V) + PL1V = CTDN /* Set PL2 */ - Store (CPL2 (CTDN), PL2V) + PL2V = CPL2 (CTDN) /* Set PPC limit and notify OS */ - Store (PSSS (TARN), PPCM) + PPCM = PSSS (TARN) PPCN () /* Set TAR */ - Store (TARN, TARS) + TARS = TARN /* Set CTC */ - Store (CTCN, CTCS) + CTCS = CTCN /* Store the new TDP Nominal setting */ - Store (CTCN, CTCC) + CTCC = CTCN Release (CTCM) Return (1) @@ -161,7 +159,7 @@ Scope (\_SB.PCI0.MCHC) /* Calculate PL1 value based on requested TDP */ Method (TDPP, 1, NotSerialized) { - Return (Multiply (ShiftLeft (Subtract (PUNI, 1), 2), Arg0)) + Return (((PUNI - 1) << 2) * Arg0) } /* Enable Controllable TDP to limit PL1 to requested value */ @@ -171,22 +169,22 @@ Scope (\_SB.PCI0.MCHC) Return (0) } - Store ("Enable PL1 Limit", Debug) + Debug = "Enable PL1 Limit" /* Set _PPC to LFM */ - Store (PSSS (LFM_), Local0) - Add (Local0, 1, PPCM) + Local0 = PSSS (LFM_) + PPCM = Local0 + 1 \PPCN () /* Set TAR to LFM-1 */ - Subtract (LFM_, 1, TARS) + TARS = LFM_ - 1 /* Set PL1 to desired value */ - Store (PL1V, SPL1) - Store (TDPP (Arg0), PL1V) + SPL1 = PL1V + PL1V = TDPP (Arg0) /* Set PL1 CLAMP bit */ - Store (One, PL1C) + PL1C = 1 Release (CTCM) Return (1) @@ -199,19 +197,19 @@ Scope (\_SB.PCI0.MCHC) Return (0) } - Store ("Disable PL1 Limit", Debug) + Debug = "Disable PL1 Limit" /* Clear PL1 CLAMP bit */ - Store (Zero, PL1C) + PL1C = 0 /* Set PL1 to normal value */ - Store (SPL1, PL1V) + PL1V = SPL1 /* Set TAR to 0 */ - Store (Zero, TARS) + TARS = 0 /* Set _PPC to 0 */ - Store (Zero, PPCM) + PPCM = 0 \PPCN () Release (CTCM) |