diff options
Diffstat (limited to 'src/soc/intel/alderlake/acpi/tcss.asl')
| -rw-r--r-- | src/soc/intel/alderlake/acpi/tcss.asl | 964 |
1 files changed, 964 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/acpi/tcss.asl b/src/soc/intel/alderlake/acpi/tcss.asl new file mode 100644 index 0000000000..1b13260bc6 --- /dev/null +++ b/src/soc/intel/alderlake/acpi/tcss.asl @@ -0,0 +1,964 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include <soc/iomap.h> + +/* + * Type C Subsystem(TCSS) topology provides Runtime D3 support for USB host controller(xHCI), + * USB device controller(xDCI), Thunderbolt DMA devices and Thunderbolt PCIe controllers. + * PCIe RP0/RP1 is grouped with DMA0 and PCIe RP2/RP3 is grouped with DMA1. + */ +#define TCSS_TBT_PCIE0_RP0 0 +#define TCSS_TBT_PCIE0_RP1 1 +#define TCSS_TBT_PCIE0_RP2 2 +#define TCSS_TBT_PCIE0_RP3 3 +#define TCSS_XHCI 4 +#define TCSS_XDCI 5 +#define TCSS_DMA0 6 +#define TCSS_DMA1 7 + +/* + * MAILBOX_BIOS_CMD_TCSS_DEVEN_INTERFACE + * Command code 0x15 + * Description: Gateway command for handling TCSS DEVEN clear/restore. + * Field PARAM1[15:8] of the _INTERFACE register is used in this command to select from + * a pre-defined set of subcommands. + */ +#define MAILBOX_BIOS_CMD_TCSS_DEVEN_INTERFACE 0x00000015 +#define TCSS_DEVEN_MAILBOX_SUBCMD_GET_STATUS 0 /* Sub-command 0 */ +#define TCSS_DEVEN_MAILBOX_SUBCMD_TCSS_CHANGE_REQ 1 /* Sub-command 1 */ +#define TCSS_IOM_ACK_TIMEOUT_IN_MS 100 + +#define MCHBAR_TCSS_DEVEN_OFFSET 0x7090 + +#define REVISION_ID 1 +#define UNRECOGNIZED_UUID 0x4 +#define UNRECOGNIZED_REVISION 0x8 + +#define USB_TUNNELING 0x1 +#define DISPLAY_PORT_TUNNELING 0x2 +#define PCIE_TUNNELING 0x4 +#define INTER_DOMAIN_USB4_INTERNET_PROTOCOL 0x8 + +Scope (\_SB) +{ + /* Device base address */ + Method (BASE, 1) + { + Local0 = Arg0 & 0x7 /* Function number */ + Local1 = (Arg0 >> 16) & 0x1F /* Device number */ + Local2 = (Local0 << 12) + (Local1 << 15) + Local3 = \_SB.PCI0.GPCB() + Local2 + Return (Local3) + } + + /* + * Define PCH ACPIBASE IO as an ACPI operating region. The base address can be + * found in Device 31, Function 2, Offset 40h. + */ + OperationRegion (PMIO, SystemIO, ACPI_BASE_ADDRESS, 0x80) + Field (PMIO, ByteAcc, NoLock, Preserve) { + Offset(0x6C), /* 0x6C, General Purpose Event 0 Status [127:96] */ + , 19, + CPWS, 1, /* CPU WAKE STATUS */ + Offset(0x7C), /* 0x7C, General Purpose Event 0 Enable [127:96] */ + , 19, + CPWE, 1 /* CPU WAKE EN */ + } + + Name (C2PW, 0) /* Set default value to 0. */ + + /* + * C2PM (CPU to PCH Method) + * + * This object is Enable/Disable GPE_CPU_WAKE_EN. + * Arguments: (4) + * Arg0 - An Integer containing the device wake capability + * Arg1 - An Integer containing the target system state + * Arg2 - An Integer containing the target device state + * Arg3 - An Integer containing the request device type + * Return Value: + * return 0 + */ + Method (C2PM, 4, NotSerialized) + { + Local0 = 1 << Arg3 + /* This method is used to enable/disable wake from Tcss Device (WKEN). */ + If (Arg0 && Arg1) + { /* If entering Sx and enabling wake, need to enable WAKE capability. */ + If (CPWE == 0) { /* If CPU WAKE EN is not set, Set it. */ + If (CPWS) { /* If CPU WAKE STATUS is set, Clear it. */ + /* Clear CPU WAKE STATUS by writing 1. */ + CPWS = 1 + } + CPWE = 1 /* Set CPU WAKE EN by writing 1. */ + } + If ((C2PW & Local0) == 0) { + /* Set Corresponding Device En BIT in C2PW. */ + C2PW |= Local0 + } + } Else { /* If Staying in S0 or Disabling Wake. */ + If (Arg0 || Arg2) { /* Check if Exiting D0 and arming for wake. */ + /* If CPU WAKE EN is not set, Set it. */ + If (CPWE == 0) { + /* If CPU WAKE STATUS is set, Clear it. */ + If (CPWS) { + /* Clear CPU WAKE STATUS by writing 1. */ + CPWS = 1 + } + CPWE = 1 /* Set CPU WAKE EN by writing 1. */ + } + If ((C2PW & Local0) == 0) { + /* Set Corresponding Device En BIT in C2PW. */ + C2PW |= Local0 + } + } Else { + /* + * Disable runtime PME, either because staying in D0 or + * disabling wake. + */ + If ((C2PW & Local0) != 0) { + /* + * Clear Corresponding Device En BIT in C2PW. + */ + C2PW &= ~Local0 + } + If ((CPWE != 0) && (C2PW == 0)) { + /* + * If CPU WAKE EN is set, Clear it. Clear CPU WAKE EN + * by writing 0. + */ + CPWE = 0 + } + } + } + Return (0) + } + + Method (_OSC, 4, Serialized) + { + CreateDWordField (Arg3, 0, CDW1) + If (Arg0 == ToUUID("0811B06E-4A27-44F9-8D60-3CBBC22E7B48")) { + /* Platform-Wide _OSC Capabilities + * Arg0: UUID = {0811B06E-4A27-44F9-8D60-3CBBC22E7B48} + * Arg1: Revision ID = 1 + * Arg2: Count of entries (DWORD) in Arge3 (Integer): 3 + * Arg3: DWORD capabilities buffer: + * First DWORD: The standard definition bits are used to return errors. + * Second DWORD: See ACPI specification Platform-Wide _OSC Capabilities + * DWORD2 table for Bits 0-17. Bit 18 is newly defined as native USB4 + * support. The OS sets this bit to indicate support for an OSPM-native + * USB4 Connection Manager which handles USB4 connection events and + * link management. + */ + If (Arg1 != REVISION_ID) { + CDW1 |= UNRECOGNIZED_REVISION + } + Return (Arg3) + } ElseIf (Arg0 == ToUUID("23A0D13A-26AB-486C-9C5F-0FFA525A575A")) { + /* + * Operating System Capabilities for USB4 + * Arg0: UUID = {23A0D13A-26AB-486C-9C5F-0FFA525A575A} + * Arg1: Revision ID = 1 + * Arg2: Count of entries (DWORD) in Arg3 (Integer): 3 + * Arg3: DWORD capabilities buffer: + * First DWORD: The standard definition bits are used to return errors. + * Second DWORD: OSPM support field for USB4, bits [31:0] reserved. + * Third DWORD: OSPM control field for USB4. + * bit 0: USB tunneling + * bit 1: DisplayPort tunneling + * bit 2: PCIe tunneling + * bit 3: Inter-domain USB4 internet protocol + * bit 31:4: reserved + * Return: The platform acknowledges the capabilities buffer by + * returning a buffer of DWORD of the same length. Masked/Cleared bits + * in the control field indicate that the platform does not permit OSPM + * control of the respectively capabilities or features. + */ + CreateDWordField (Arg3, 8, CDW3) + Local0 = CDW3 + + If (Arg1 != REVISION_ID) { + CDW1 |= UNRECOGNIZED_REVISION + Return (Arg3) + } + Local0 |= USB_TUNNELING | DISPLAY_PORT_TUNNELING | PCIE_TUNNELING | + INTER_DOMAIN_USB4_INTERNET_PROTOCOL + CDW3 = Local0 + Return (Arg3) + } Else { + CDW1 |= UNRECOGNIZED_UUID + Return (Arg3) + } + } +} + +Scope (_GPE) +{ + /* PCI Express Hot-Plug wake event */ + Method (_L61, 0, NotSerialized) + { + /* + * Delay for 100ms to meet the timing requirements of the PCI Express Base + * Specification, Revision 1.0A, Section 6.6 ("...software must wait at least + * 100ms from the end of reset of one or more device before it is permitted + * to issue Configuration Requests to those devices"). + */ + Sleep (100) + + If (CondRefOf (\_SB.PCI0.TXHC)) { + /* Invoke PCIe root ports wake event handler */ + \_SB.PCI0.TRP0.HPEV() + \_SB.PCI0.TRP1.HPEV() + \_SB.PCI0.TRP2.HPEV() + \_SB.PCI0.TRP3.HPEV() + } + + /* Check Root Port 0 for a Hot Plug Event if the port is enabled */ + If (((\_SB.PCI0.TRP0.VDID != 0xFFFFFFFF) && \_SB.PCI0.TRP0.HPSX)) { + If (\_SB.PCI0.TRP0.PDCX) { + /* Clear all status bits */ + \_SB.PCI0.TRP0.PDCX = 1 + \_SB.PCI0.TRP0.HPSX = 1 + /* + * Intercept Presence Detect Changed interrupt and make sure + * the L0s is disabled on empty slots. + */ + If (!\_SB.PCI0.TRP0.PDSX) { + /* + * The PCIe slot is empty, so disable L0s on hot unplug. + */ + \_SB.PCI0.TRP0.L0SE = 0 + } + /* Performs proper notification to the OS. */ + Notify (\_SB.PCI0.TRP0, 0) + } Else { + /* False event. Clear Hot-Plug status, then exit. */ + \_SB.PCI0.TRP0.HPSX = 1 + } + } + + /* Check Root Port 1 for a Hot Plug Event if the port is enabled */ + If (((\_SB.PCI0.TRP1.VDID != 0xFFFFFFFF) && \_SB.PCI0.TRP1.HPSX)) { + If (\_SB.PCI0.TRP1.PDCX) { + \_SB.PCI0.TRP1.PDCX = 1 + \_SB.PCI0.TRP1.HPSX = 1 + If (!\_SB.PCI0.TRP1.PDSX) { + \_SB.PCI0.TRP1.L0SE = 0 + } + Notify (\_SB.PCI0.TRP1, 0) + } Else { + \_SB.PCI0.TRP1.HPSX = 1 + } + } + + /* Check Root Port 2 for a Hot Plug Event if the port is enabled */ + If (((\_SB.PCI0.TRP2.VDID != 0xFFFFFFFF) && \_SB.PCI0.TRP2.HPSX)) { + If (\_SB.PCI0.TRP2.PDCX) { + \_SB.PCI0.TRP2.PDCX = 1 + \_SB.PCI0.TRP2.HPSX = 1 + If (!\_SB.PCI0.TRP2.PDSX) { + \_SB.PCI0.TRP2.L0SE = 0 + } + Notify (\_SB.PCI0.TRP2, 0) + } Else { + \_SB.PCI0.TRP2.HPSX = 1 + } + } + + /* Check Root Port 3 for a Hot Plug Event if the port is enabled */ + If (((\_SB.PCI0.TRP3.VDID != 0xFFFFFFFF) && \_SB.PCI0.TRP3.HPSX)) { + If (\_SB.PCI0.TRP3.PDCX) { + \_SB.PCI0.TRP3.PDCX = 1 + \_SB.PCI0.TRP3.HPSX = 1 + If (!\_SB.PCI0.TRP3.PDSX) { + \_SB.PCI0.TRP3.L0SE = 0 + } + Notify (\_SB.PCI0.TRP3, 0) + } Else { + \_SB.PCI0.TRP3.HPSX = 1 + } + } + } + + /* PCI Express power management event */ + Method (_L69, 0, Serialized) + { + If (CondRefOf (\_SB.PCI0.TXHC)) { + If (\_SB.PCI0.TRP0.HPME() == 1) { + Notify (\_SB.PCI0.TDM0, 0x2) + Notify (\_SB.PCI0.TRP0, 0x2) + } + + If (\_SB.PCI0.TRP1.HPME() == 1) { + Notify (\_SB.PCI0.TDM0, 0x2) + Notify (\_SB.PCI0.TRP1, 0x2) + } + + If (\_SB.PCI0.TRP2.HPME() == 1) { + Notify (\_SB.PCI0.TDM1, 0x2) + Notify (\_SB.PCI0.TRP2, 0x2) + } + + If (\_SB.PCI0.TRP3.HPME() == 1) { + Notify (\_SB.PCI0.TDM1, 0x2) + Notify (\_SB.PCI0.TRP3, 0x2) + } + } + + /* Invoke PCIe root ports power management status handler */ + \_SB.PCI0.TRP0.HPME() + \_SB.PCI0.TRP1.HPME() + \_SB.PCI0.TRP2.HPME() + \_SB.PCI0.TRP3.HPME() + } +} + +Scope (\_SB.PCI0) +{ + Device (IOM) + { + Name (_HID, "INTC1072") + Name (_DDN, "Intel(R) Alder Lake Input Output Manager(IOM) driver") + /* IOM preserved MMIO range from 0xFBC10000 to 0xFBC11600. */ + Name (_CRS, ResourceTemplate () { + Memory32Fixed (ReadWrite, IOM_BASE_ADDRESS, IOM_BASE_SIZE) + }) + } + + /* + * Operation region defined to access the TCSS_DEVEN. Get the MCHBAR in offset + * 0x48 in B0:D0:F0. TCSS device enable base address is in offset 0x7090 of MCHBAR. + */ + OperationRegion (TDEN, SystemMemory, (GMHB() + MCHBAR_TCSS_DEVEN_OFFSET), 0x4) + Field (TDEN, ByteAcc, NoLock, Preserve) + { + TRE0, 1, /* PCIE0_EN */ + TRE1, 1, /* PCIE1_EN */ + TRE2, 1, /* PCIE2_EN */ + TRE3, 1, /* PCIE3_EN */ + , 4, + THCE, 1, /* XHCI_EN */ + TDCE, 1, /* XDCI_EN */ + DME0, 1, /* TBT_DMA0_EN */ + DME1, 1, /* TBT_DMA1_EN */ + , 20 + } + + /* + * Operation region defined to access the IOM REGBAR. Get the MCHBAR in offset + * 0x48 in B0:D0:F0. REGBAR Base address is in offset 0x7110 of MCHBAR. + */ + OperationRegion (MBAR, SystemMemory, (GMHB() + 0x7100), 0x1000) + Field (MBAR, ByteAcc, NoLock, Preserve) + { + Offset(0x10), + RBAR, 64 /* RegBar, offset 0x7110 in MCHBAR */ + } + Field (MBAR, DWordAcc, NoLock, Preserve) + { + Offset(0x304), /* PRIMDN_MASK1_0_0_0_MCHBAR_IMPH, offset 0x7404 */ + , 31, + TCD3, 1 /* [31:31] TCSS IN D3 bit */ + } + + /* + * Operation region defined to access the pCode mailbox interface. Get the MCHBAR + * in offset 0x48 in B0:D0:F0. MMIO address is in offset 0x5DA0 of MCHBAR. + */ + OperationRegion (PBAR, SystemMemory, (GMHB() + 0x5DA0), 0x08) + Field (PBAR, DWordAcc, NoLock, Preserve) + { + PMBD, 32, /* pCode MailBox Data, offset 0x5DA0 in MCHBAR */ + PMBC, 8, /* pCode MailBox Command, [7:0] of offset 0x5DA4 in MCHBAR */ + PSCM, 8, /* pCode MailBox Sub-Command, [15:8] of offset 0x5DA4 in MCHBAR */ + , 15, /* Reserved */ + PMBR, 1 /* pCode MailBox RunBit, [31:31] of offset 0x5DA4 in MCHBAR */ + } + + /* + * Poll pCode MailBox Ready + * + * Return 0xFF - Timeout + * 0x00 - Ready + */ + Method (PMBY, 0) + { + Local0 = 0 + While (PMBR && (Local0 < 1000)) { + Local0++ + Stall (1) + } + If (Local0 == 1000) { + Printf("Timeout occurred.") + Return (0xFF) + } + Return (0) + } + + /* + * Method to send pCode MailBox command TCSS_DEVEN_MAILBOX_SUBCMD_GET_STATUS + * + * Result will be updated in DATA[1:0] + * DATA[0:0] TCSS_DEVEN_CURRENT_STATE: + * 0 - TCSS Deven in normal state. + * 1 - TCSS Deven is cleared by BIOS Mailbox request. + * DATA[1:1] TCSS_DEVEN_REQUEST_STATUS: + * 0 - IDLE. TCSS DEVEN has reached its final requested state. + * 1 - In Progress. TCSS DEVEN is currently in progress of switching state + * according to given request (bit 0 reflects source state). + * + * Return 0x00 - TCSS Deven in normal state + * 0x01 - TCSS Deven is cleared by BIOS Mailbox request + * 0x1x - TCSS Deven is in progress of switching state according to given request + * 0xFE - Command timeout + * 0xFF - Command corrupt + */ + Method (DSGS, 0) + { + If ((PMBY () == 0)) { + PMBC = MAILBOX_BIOS_CMD_TCSS_DEVEN_INTERFACE + PSCM = TCSS_DEVEN_MAILBOX_SUBCMD_GET_STATUS + PMBR = 1 + If (PMBY () == 0) { + Local0 = PMBD + Local1 = PMBC + Stall (10) + If ((Local0 != PMBD) || (Local1 != PMBC)) { + Printf("pCode MailBox is corrupt.") + Return (0xFF) + } + Return (Local0) + } Else { + Printf("pCode MailBox is not ready.") + Return (0xFE) + } + } Else { + Printf("pCode MailBox is not ready.") + Return (0xFE) + } + } + + /* + * Method to send pCode MailBox command TCSS_DEVEN_MAILBOX_SUBCMD_TCSS_CHANGE_REQ + * + * Arg0 : 0 - Restore to previously saved value of TCSS DEVEN + * 1 - Save current TCSS DEVEN value and clear it + * + * Return 0x00 - MAILBOX_BIOS_CMD_CLEAR_TCSS_DEVEN command completed + * 0xFD - Input argument is invalid + * 0xFE - Command timeout + * 0xFF - Command corrupt + */ + Method (DSCR, 1) + { + If (Arg0 > 1) { + Printf("pCode MailBox is corrupt.") + Return (0xFD) + } + If ((PMBY () == 0)) { + PMBC = MAILBOX_BIOS_CMD_TCSS_DEVEN_INTERFACE + PSCM = TCSS_DEVEN_MAILBOX_SUBCMD_TCSS_CHANGE_REQ + PMBD = Arg0 + PMBR = 1 + If ((PMBY () == 0)) { + Local0 = PMBD + Local1 = PMBC + Stall (10) + If ((Local0 != PMBD) || (Local1 != PMBC)) { + Printf("pCode MailBox is corrupt.") + Return (0xFF) + } + /* Poll TCSS_DEVEN_REQUEST_STATUS, timeout value is 10ms. */ + Local0 = 0 + While ((DSGS () & 0x10) && (Local0 < 100)) { + Stall (100) + Local0++ + } + If (Local0 == 100) { + Printf("pCode MailBox is not ready.") + Return (0xFE) + } Else { + Return (0x00) + } + } Else { + Printf("pCode MailBox is not ready.") + Return (0xFE) + } + } Else { + Printf("pCode MailBox is not ready.") + Return (0xFE) + } + } + + /* + * IOM REG BAR Base address is in offset 0x7110 in MCHBAR. + */ + Method (IOMA, 0) + { + Return (^RBAR & ~0x1) + } + + /* + * From RegBar Base, IOM_TypeC_SW_configuration_1 is in offset 0xC10040, where + * 0x40 is the register offset. + */ + OperationRegion (IOMR, SystemMemory, (IOMA() + 0xC10000), 0x100) + Field (IOMR, DWordAcc, NoLock, Preserve) + { + Offset(0x40), + , 15, + TD3C, 1, /* [15:15] Type C D3 cold bit */ + TACK, 1, /* [16:16] IOM Acknowledge bit */ + DPOF, 1, /* [17:17] Set 1 to indicate IOM, all the */ + /* display is OFF, clear otherwise */ + Offset(0x70), /* Pyhsical addr is offset 0x70. */ + IMCD, 32, /* R_SA_IOM_BIOS_MAIL_BOX_CMD */ + IMDA, 32 /* R_SA_IOM_BIOS_MAIL_BOX_DATA */ + } + + /* + * TBT Group0 ON method + */ + Method (TG0N, 0) + { + If (\_SB.PCI0.TDM0.VDID == 0xFFFFFFFF) { + Printf("TDM0 does not exist.") + } Else { + If (\_SB.PCI0.TDM0.STAT == 0) { + /* DMA0 is in D3Cold early. */ + \_SB.PCI0.TDM0.D3CX() /* RTD3 Exit */ + + Printf("Bring TBT RPs out of D3Code.") + If (\_SB.PCI0.TRP0.VDID != 0xFFFFFFFF) { + /* RP0 D3 cold exit. */ + \_SB.PCI0.TRP0.D3CX() + } + If (\_SB.PCI0.TRP1.VDID != 0xFFFFFFFF) { + /* RP1 D3 cold exit. */ + \_SB.PCI0.TRP1.D3CX() + } + } Else { + Printf("Drop TG0N due to it is already exit D3 cold.") + } + + /* TBT RTD3 exit 10ms delay. */ + Sleep (10) + } + } + + /* + * TBT Group0 OFF method + */ + Method (TG0F, 0) + { + If (\_SB.PCI0.TDM0.VDID == 0xFFFFFFFF) { + Printf("TDM0 does not exist.") + } Else { + If (\_SB.PCI0.TDM0.STAT == 1) { + /* DMA0 is not in D3Cold now. */ + \_SB.PCI0.TDM0.D3CE() /* Enable DMA RTD3 */ + + Printf("Push TBT RPs to D3Cold together") + If (\_SB.PCI0.TRP0.VDID != 0xFFFFFFFF) { + /* Put RP0 to D3 cold. */ + \_SB.PCI0.TRP0.D3CE() + } + If (\_SB.PCI0.TRP1.VDID != 0xFFFFFFFF) { + /* Put RP1 to D3 cold. */ + \_SB.PCI0.TRP1.D3CE() + } + } + } + } + + /* + * TBT Group1 ON method + */ + Method (TG1N, 0) + { + If (\_SB.PCI0.TDM1.VDID == 0xFFFFFFFF) { + Printf("TDM1 does not exist.") + } Else { + If (\_SB.PCI0.TDM1.STAT == 0) { + /* DMA1 is in D3Cold early. */ + \_SB.PCI0.TDM1.D3CX() /* RTD3 Exit */ + + Printf("Bring TBT RPs out of D3Code.") + If (\_SB.PCI0.TRP2.VDID != 0xFFFFFFFF) { + /* RP2 D3 cold exit. */ + \_SB.PCI0.TRP2.D3CX() + } + If (\_SB.PCI0.TRP3.VDID != 0xFFFFFFFF) { + /* RP3 D3 cold exit. */ + \_SB.PCI0.TRP3.D3CX() + } + } Else { + Printf("Drop TG1N due to it is already exit D3 cold.") + } + + /* TBT RTD3 exit 10ms delay. */ + Sleep (10) + } + } + + /* + * TBT Group1 OFF method + */ + Method (TG1F, 0) + { + If (\_SB.PCI0.TDM1.VDID == 0xFFFFFFFF) { + Printf("TDM1 does not exist.") + } Else { + If (\_SB.PCI0.TDM1.STAT == 1) { + /* DMA1 is not in D3Cold now */ + \_SB.PCI0.TDM1.D3CE() /* Enable DMA RTD3. */ + + Printf("Push TBT RPs to D3Cold together") + If (\_SB.PCI0.TRP2.VDID != 0xFFFFFFFF) { + /* Put RP2 to D3 cold. */ + \_SB.PCI0.TRP2.D3CE() + } + If (\_SB.PCI0.TRP3.VDID != 0xFFFFFFFF) { + /* Put RP3 to D3 cold */ + \_SB.PCI0.TRP3.D3CE() + } + } + } + } + + PowerResource (TBT0, 5, 1) + { + Method (_STA, 0) + { + Return (\_SB.PCI0.TDM0.STAT) + } + + Method (_ON, 0) + { + TG0N() + } + + Method (_OFF, 0) + { + If (\_SB.PCI0.TDM0.SD3C == 0) { + TG0F() + } + } + } + + PowerResource (TBT1, 5, 1) + { + Method (_STA, 0) + { + Return (\_SB.PCI0.TDM1.STAT) + } + + Method (_ON, 0) + { + TG1N() + } + + Method (_OFF, 0) + { + If (\_SB.PCI0.TDM1.SD3C == 0) { + TG1F() + } + } + } + + Method (TCON, 0) + { + /* Reset IOM D3 cold bit if it is in D3 cold now. */ + If (TD3C == 1) /* It was in D3 cold before. */ + { + /* Reset IOM D3 cold bit. */ + TD3C = 0 /* Request IOM for D3 cold exit sequence. */ + Local0 = 0 /* Time check counter variable */ + /* Wait for ack, the maximum wait time for the ack is 100 msec. */ + While ((TACK != 0) && (Local0 < TCSS_IOM_ACK_TIMEOUT_IN_MS)) { + /* + * Wait in this loop until TACK becomes 0 with timeout + * TCSS_IOM_ACK_TIMEOUT_IN_MS by default. + */ + Sleep (1) /* Delay of 1ms. */ + Local0++ + } + + If (Local0 == TCSS_IOM_ACK_TIMEOUT_IN_MS) { + Printf("Error: Timeout occurred.") + } + Else + { + /* + * Program IOP MCTP Drop (TCSS_IN_D3) after D3 cold exit and + * acknowledgement by IOM. + */ + TCD3 = 0 + /* + * If the TCSS Deven is cleared by BIOS Mailbox request, then + * restore to previously saved value of TCSS DEVNE. + */ + Local0 = 0 + While (\_SB.PCI0.TXHC.VDID == 0xFFFFFFFF) { + If (DSGS () == 1) { + DSCR (0) + } + Local0++ + If (Local0 == 5) { + Printf("pCode mailbox command failed.") + Break + } + } + } + } + Else { + Printf("Drop TCON due to it is already exit D3 cold.") + } + } + + Method (TCOF, 0) + { + If ((\_SB.PCI0.TXHC.SD3C != 0) || (\_SB.PCI0.TDM0.SD3C != 0) + || (\_SB.PCI0.TDM1.SD3C != 0)) + { + Printf("Skip D3C entry.") + Return + } + + /* + * If the TCSS Deven in normal state, then Save current TCSS DEVEN value and + * clear it. + */ + Local0 = 0 + While (\_SB.PCI0.TXHC.VDID != 0xFFFFFFFF) { + If (DSGS () == 0) { + DSCR (1) + } + Local0++ + If (Local0 == 5) { + Printf("pCode mailbox command failed.") + Break + } + } + + /* + * Program IOM MCTP Drop (TCSS_IN_D3) in D3Cold entry before entering D3 cold. + */ + TCD3 = 1 + + /* Request IOM for D3 cold entry sequence. */ + TD3C = 1 + } + + PowerResource (D3C, 5, 0) + { + /* + * Variable to save power state + * 1 - TC Cold request cleared. + * 0 - TC Cold request sent. + */ + Name (STAT, 0x1) + + Method (_STA, 0) + { + Return (STAT) + } + + Method (_ON, 0) + { + \_SB.PCI0.TCON() + STAT = 1 + } + + Method (_OFF, 0) + { + \_SB.PCI0.TCOF() + STAT = 0 + } + } + + /* + * TCSS xHCI device + */ + Device (TXHC) + { + Name (_ADR, 0x000D0000) + Name (_DDN, "North XHCI controller") + Name (_STR, Unicode ("North XHCI controller")) + Name (DCPM, TCSS_XHCI) + + Method (_STA, 0x0, NotSerialized) + { + If (THCE == 1) { + Return (0x0F) + } Else { + Return (0x0) + } + } + #include "tcss_xhci.asl" + } + + /* + * TCSS DMA0 device + */ + Device (TDM0) + { + Name (_ADR, 0x000D0002) + Name (_DDN, "TBT DMA0 controller") + Name (_STR, Unicode ("TBT DMA0 controller")) + Name (DUID, 0) /* TBT DMA number */ + Name (DCPM, TCSS_DMA0) + + Method (_STA, 0x0, NotSerialized) + { + If (DME0 == 1) { + Return (0x0F) + } Else { + Return (0x0) + } + } + #include "tcss_dma.asl" + } + + /* + * TCSS DMA1 device + */ + Device (TDM1) + { + Name (_ADR, 0x000D0003) + Name (_DDN, "TBT DMA1 controller") + Name (_STR, Unicode ("TBT DMA1 controller")) + Name (DUID, 1) /* TBT DMA number */ + Name (DCPM, TCSS_DMA1) + + Method (_STA, 0x0, NotSerialized) + { + If (DME1 == 1) { + Return (0x0F) + } Else { + Return (0x0) + } + } + #include "tcss_dma.asl" + } + + /* + * TCSS PCIE Root Port #00 + */ + Device (TRP0) + { + Name (_ADR, 0x00070000) + Name (TUID, 0) /* TBT PCIE RP Number 0 for RP00 */ + Name (LTEN, 0) /* Latency Tolerance Reporting Mechanism, 0:Disable, 1:Enable */ + Name (LMSL, 0) /* PCIE LTR max snoop Latency */ + Name (LNSL, 0) /* PCIE LTR max no snoop Latency */ + Name (DCPM, TCSS_TBT_PCIE0_RP0) + + Method (_STA, 0x0, NotSerialized) + { + If (TRE0 == 1) { + Return (0x0F) + } Else { + Return (0x0) + } + } + + Method (_INI) + { + LTEN = 0 + LMSL = 0x88C8 + LNSL = 0x88C8 + } + #include "tcss_pcierp.asl" + } + + /* + * TCSS PCIE Root Port #01 + */ + Device (TRP1) + { + Name (_ADR, 0x00070001) + Name (TUID, 1) /* TBT PCIE RP Number 1 for RP01 */ + Name (LTEN, 0) /* Latency Tolerance Reporting Mechanism, 0:Disable, 1:Enable */ + Name (LMSL, 0) /* PCIE LTR max snoop Latency */ + Name (LNSL, 0) /* PCIE LTR max no snoop Latency */ + Name (DCPM, TCSS_TBT_PCIE0_RP1) + + Method (_STA, 0x0, NotSerialized) + { + If (TRE1 == 1) { + Return (0x0F) + } Else { + Return (0x0) + } + } + + Method (_INI) + { + LTEN = 0 + LMSL = 0x88C8 + LNSL = 0x88C8 + } + #include "tcss_pcierp.asl" + } + + /* + * TCSS PCIE Root Port #02 + */ + Device (TRP2) + { + Name (_ADR, 0x00070002) + Name (TUID, 2) /* TBT PCIE RP Number 2 for RP02 */ + Name (LTEN, 0) /* Latency Tolerance Reporting Mechanism, 0:Disable, 1:Enable */ + Name (LMSL, 0) /* PCIE LTR max snoop Latency */ + Name (LNSL, 0) /* PCIE LTR max no snoop Latency */ + Name (DCPM, TCSS_TBT_PCIE0_RP2) + + Method (_STA, 0x0, NotSerialized) + { + If (TRE2 == 1) { + Return (0x0F) + } Else { + Return (0x0) + } + } + + Method (_INI) + { + LTEN = 0 + LMSL = 0x88C8 + LNSL = 0x88C8 + } + #include "tcss_pcierp.asl" + } + + /* + * TCSS PCIE Root Port #03 + */ + Device (TRP3) + { + Name (_ADR, 0x00070003) + Name (TUID, 3) /* TBT PCIE RP Number 3 for RP03 */ + Name (LTEN, 0) /* Latency Tolerance Reporting Mechanism, 0:Disable, 1:Enable */ + Name (LMSL, 0) /* PCIE LTR max snoop Latency */ + Name (LNSL, 0) /* PCIE LTR max no snoop Latency */ + Name (DCPM, TCSS_TBT_PCIE0_RP3) + + Method (_STA, 0x0, NotSerialized) + { + If (TRE3 == 1) { + Return (0x0F) + } Else { + Return (0x0) + } + } + + Method (_INI) + { + LTEN = 0 + LMSL = 0x88C8 + LNSL = 0x88C8 + } + #include "tcss_pcierp.asl" + } +} |