diff options
Diffstat (limited to 'src/soc/intel/alderlake/acpi/tcss_dma.asl')
-rw-r--r-- | src/soc/intel/alderlake/acpi/tcss_dma.asl | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/acpi/tcss_dma.asl b/src/soc/intel/alderlake/acpi/tcss_dma.asl new file mode 100644 index 0000000000..da2e8fe97d --- /dev/null +++ b/src/soc/intel/alderlake/acpi/tcss_dma.asl @@ -0,0 +1,111 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +OperationRegion (DPME, SystemMemory, BASE(_ADR), 0x100) +Field (DPME, AnyAcc, NoLock, Preserve) +{ + VDID, 32, + Offset(0x84), /* 0x84, DMA CFG PM CAP */ + PMST, 2, /* 1:0, PM_STATE */ + , 6, + PMEE, 1, /* 8, PME_EN */ + , 6, + PMES, 1, /* 15, PME_STATUS */ + Offset(0xC8), /* 0xC8, TBT NVM FW Revision */ + , 31, + INFR, 1, /* TBT NVM FW Ready */ + Offset(0xEC), /* 0xEC, TBT TO PCIE Register */ + TB2P, 32, /* TBT to PCIe */ + P2TB, 32, /* PCIe to TBT */ + Offset(0xFC), /* 0xFC, DMA RTD3 Force Power */ + DD3E, 1, /* 0:0 DMA RTD3 Enable */ + DFPE, 1, /* 1:1 DMA Force Power */ + , 22, + DMAD, 8 /* 31:24 DMA Active Delay */ +} + +Name (STAT, 0x1) /* Variable to save power state 1 - D0, 0 - D3C */ + +Method (_S0W, 0x0) +{ + Return (0x4) +} + +Method (_PR0) +{ + If (DUID == 0) { + Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT0 }) + } Else { + Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT1 }) + } +} + +Method (_PR3) +{ + If (DUID == 0) { + Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT0 }) + } Else { + Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT1 }) + } +} + +/* + * RTD3 Exit Method to bring TBT controller out of RTD3 mode. + */ +Method (D3CX, 0, Serialized) +{ + DD3E = 0 /* Disable DMA RTD3 */ + STAT = 0x1 +} + +/* + * RTD3 Entry method to enable TBT controller RTD3 mode. + */ +Method (D3CE, 0, Serialized) +{ + DD3E = 1 /* Enable DMA RTD3 */ + STAT = 0 +} + +/* + * Variable to skip TCSS/TBT D3 cold; 1+: Skip D3CE, 0 - Enable D3CE + * TCSS D3 Cold and TBT RTD3 is only available when system power state is in S0. + */ +Name (SD3C, 0) + +Method (_DSW, 3) +{ + /* If entering Sx (Arg1 > 1), need to skip TCSS D3Cold & TBT RTD3/D3Cold. */ + SD3C = Arg1 +} + +Method (_PRW, 0) +{ + Return (Package() { 0x6D, 4 }) +} + +Method (_DSD, 0) +{ + Return( + Package() + { + /* Thunderbolt GUID for IMR_VALID at ../drivers/acpi/property.c */ + ToUUID("C44D002F-69F9-4E7D-A904-A7BAABDF43F7"), + Package () + { + Package (2) { "IMR_VALID", 1 } + }, + + /* Thunderbolt GUID for WAKE_SUPPORTED at ../drivers/acpi/property.c */ + ToUUID("6C501103-C189-4296-BA72-9BF5A26EBE5D"), + Package () + { + Package (2) { "WAKE_SUPPORTED", 1 } + } + } + ) +} + +Method (_DSM, 4, Serialized) +{ + Return (Buffer() { 0 }) +} |