diff options
Diffstat (limited to 'src/northbridge/intel/haswell/acpi')
| -rw-r--r-- | src/northbridge/intel/haswell/acpi/hostbridge.asl | 116 |
1 files changed, 99 insertions, 17 deletions
diff --git a/src/northbridge/intel/haswell/acpi/hostbridge.asl b/src/northbridge/intel/haswell/acpi/hostbridge.asl index 681f6dc1fd..30ee3e548e 100644 --- a/src/northbridge/intel/haswell/acpi/hostbridge.asl +++ b/src/northbridge/intel/haswell/acpi/hostbridge.asl @@ -106,35 +106,45 @@ Device (MCHC) Name (CTCN, 0) /* CTDP Nominal Select */ Name (CTCD, 1) /* CTDP Down Select */ Name (CTCU, 2) /* CTDP Up Select */ + Name (SPL1, 0) /* Saved PL1 value */ - OperationRegion (MCHB, SystemMemory, DEFAULT_MCHBAR, 0x8000) + OperationRegion (MCHB, SystemMemory, Add(DEFAULT_MCHBAR,0x5000), 0x1000) Field (MCHB, DWordAcc, Lock, Preserve) { - Offset (0x5930), + Offset (0x930), /* PACKAGE_POWER_SKU */ CTDN, 15, /* CTDP Nominal PL1 */ - Offset (0x59a0), + Offset (0x938), /* PACKAGE_POWER_SKU_UNIT */ + PUNI, 4, /* Power Units */ + , 4, + EUNI, 5, /* Energy Units */ + , 3, + TUNI, 4, /* Time Units */ + Offset (0x958), /* PLATFORM_INFO */ + , 40, + LFM_, 8, /* Maximum Efficiency Ratio (LFM) */ + Offset (0x9a0), /* TURBO_POWER_LIMIT1 */ PL1V, 15, /* Power Limit 1 Value */ PL1E, 1, /* Power Limit 1 Enable */ PL1C, 1, /* Power Limit 1 Clamp */ PL1T, 7, /* Power Limit 1 Time */ - Offset (0x59a4), + Offset (0x9a4), /* TURBO_POWER_LIMIT2 */ PL2V, 15, /* Power Limit 2 Value */ PL2E, 1, /* Power Limit 2 Enable */ PL2C, 1, /* Power Limit 2 Clamp */ PL2T, 7, /* Power Limit 2 Time */ - Offset (0x5f3c), + Offset (0xf3c), /* CONFIG_TDP_NOMINAL */ TARN, 8, /* CTDP Nominal Turbo Activation Ratio */ - Offset (0x5f40), + Offset (0xf40), /* CONFIG_TDP_LEVEL1 */ CTDD, 15, /* CTDP Down PL1 */ - , 1, + , 1, TARD, 8, /* CTDP Down Turbo Activation Ratio */ - Offset (0x5f48), + Offset (0xf48), /* MSR_CONFIG_TDP_LEVEL2 */ CTDU, 15, /* CTDP Up PL1 */ - , 1, + , 1, TARU, 8, /* CTDP Up Turbo Activation Ratio */ - Offset (0x5f50), + Offset (0xf50), /* CONFIG_TDP_CONTROL */ CTCS, 2, /* CTDP Select */ - Offset (0x5f54), + Offset (0xf54), /* TURBO_ACTIVATION_RATIO */ TARS, 8, /* Turbo Activation Ratio Select */ } @@ -166,7 +176,19 @@ Device (MCHC) Return (0) } - /* Set TDP Down */ + /* Calculate PL2 based on chip type */ + Method (CPL2, 1, NotSerialized) + { + If (\ISLP ()) { + /* Haswell ULT PL2 = 25W */ + Return (Multiply (25, 8)) + } Else { + /* Haswell Mobile PL2 = 1.25 * PL1 */ + Return (Divide (Multiply (Arg0, 125), 100)) + } + } + + /* Set Config TDP Down */ Method (STND, 0, Serialized) { If (Acquire (CTCM, 100)) { @@ -189,8 +211,8 @@ Device (MCHC) Store (PSSS (TARD), PPCM) PPCN () - /* Set PL2 to 1.25 * PL1 */ - Divide (Multiply (CTDD, 125), 100, Local0, PL2V) + /* Set PL2 */ + Store (CPL2 (CTDD), PL2V) /* Set PL1 */ Store (CTDD, PL1V) @@ -202,7 +224,7 @@ Device (MCHC) Return (1) } - /* Set TDP Nominal from Down */ + /* Set Config TDP Nominal from Down */ Method (STDN, 0, Serialized) { If (Acquire (CTCM, 100)) { @@ -218,8 +240,8 @@ Device (MCHC) /* Set PL1 */ Store (CTDN, PL1V) - /* Set PL2 to 1.25 * PL1 */ - Divide (Multiply (CTDN, 125), 100, Local0, PL2V) + /* Set PL2 */ + Store (CPL2 (CTDN), PL2V) /* Set PPC limit and notify OS */ Store (PSSS (TARN), PPCM) @@ -237,6 +259,66 @@ Device (MCHC) Release (CTCM) Return (1) } + + /* Calculate PL1 value based on requested TDP */ + Method (TDPP, 1, NotSerialized) + { + Return (Multiply (ShiftLeft (Subtract (PUNI, 1), 2), Arg0)) + } + + /* Enable Controllable TDP to limit PL1 to requested value */ + Method (CTLE, 1, Serialized) + { + If (Acquire (CTCM, 100)) { + Return (0) + } + + Store ("Enable PL1 Limit", Debug) + + /* Set _PPC to LFM */ + Store (PSSS (LFM_), Local0) + Add (Local0, 1, PPCM) + \PPCN () + + /* Set TAR to LFM-1 */ + Subtract (LFM_, 1, TARS) + + /* Set PL1 to desired value */ + Store (PL1V, SPL1) + Store (TDPP (Arg0), PL1V) + + /* Set PL1 CLAMP bit */ + Store (One, PL1C) + + Release (CTCM) + Return (1) + } + + /* Disable Controllable TDP */ + Method (CTLD, 0, Serialized) + { + If (Acquire (CTCM, 100)) { + Return (0) + } + + Store ("Disable PL1 Limit", Debug) + + /* Clear PL1 CLAMP bit */ + Store (Zero, PL1C) + + /* Set PL1 to normal value */ + Store (SPL1, PL1V) + + /* Set TAR to 0 */ + Store (Zero, TARS) + + /* Set _PPC to 0 */ + Store (Zero, PPCM) + \PPCN () + + Release (CTCM) + Return (1) + } } // Current Resource Settings |