soc/intel/{tgl,adl}/acpi: Unify the way D3Cold is enabled

Both Alder Lake and Tiger Lake have Kconfig options for S3, which
disables support for D3Cold. Unify these so that they are easier
to compare.

Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: I6eaba99e5483053a91ca20df2b7788edac5d65b2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72798
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

4 files changed, 162 insertions, 168 deletions

diff --git a/src/soc/intel/tigerlake/acpi/tcss.asl b/src/soc/intel/tigerlake/acpi/tcss.asl
index 08b348062f31..be9d306f6eb2 100644
--- a/src/soc/intel/tigerlake/acpi/tcss.asl
+++ b/src/soc/intel/tigerlake/acpi/tcss.asl
@@ -42,12 +42,6 @@
 
 Scope (\_SB)
 {
-#if CONFIG(SOC_INTEL_TIGERLAKE_S3)
-	Name (S0IX, 0)
-#else
-	Name (S0IX, 1)
-#endif
-
 	/* Device base address */
 	Method (BASE, 1)
 	{
@@ -682,118 +676,118 @@ Scope (\_SB.PCI0)
 		}
 	}
 
-	If (S0IX == 1) {
-		Method (TCON, 0)
+#if !CONFIG(SOC_INTEL_TIGERLAKE_S3)
+	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 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
 			{
-				/* 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. */
+				/*
+				 * 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 == 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
-						}
+					If (Local0 == 5) {
+						Printf("pCode mailbox command failed.")
+						Break
 					}
 				}
 			}
-			Else {
-				Printf("Drop TCON due to it is already exit D3 cold.")
-			}
 		}
+		Else {
+			Printf("Drop TCON due to it is already exit D3 cold.")
+		}
+	}
 
-		Method (TCOF, 0)
+	Method (TCOF, 0)
+	{
+		If ((\_SB.PCI0.TXHC.SD3C != 0) || (\_SB.PCI0.TDM0.SD3C != 0)
+					       || (\_SB.PCI0.TDM1.SD3C != 0))
 		{
-			If ((\_SB.PCI0.TXHC.SD3C != 0) || (\_SB.PCI0.TDM0.SD3C != 0)
-						       || (\_SB.PCI0.TDM1.SD3C != 0))
-			{
-				Printf("Skip D3C entry.")
-				Return
-			}
+			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
-				}
+		/*
+		 * 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
+		/*
+		 * 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
-		}
+		/* 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)
+	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 (_STA, 0)
+		{
+			Return (STAT)
+		}
 
-			Method (_ON, 0)
-			{
-				\_SB.PCI0.TCON()
-				STAT = 1
-			}
+		Method (_ON, 0)
+		{
+			\_SB.PCI0.TCON()
+			STAT = 1
+		}
 
-			Method (_OFF, 0)
-			{
-				\_SB.PCI0.TCOF()
-				STAT = 0
-			}
+		Method (_OFF, 0)
+		{
+			\_SB.PCI0.TCOF()
+			STAT = 0
 		}
-	} /* End: S0IX */
+	}
+#endif	// SOC_INTEL_TIGERLAKE_S3
 
 	/*
 	 * TCSS xHCI device
diff --git a/src/soc/intel/tigerlake/acpi/tcss_dma.asl b/src/soc/intel/tigerlake/acpi/tcss_dma.asl
index ff0c5a9a4725..3c19ef621e1b 100644
--- a/src/soc/intel/tigerlake/acpi/tcss_dma.asl
+++ b/src/soc/intel/tigerlake/acpi/tcss_dma.asl
@@ -27,11 +27,11 @@ Name (STAT, 0x1)  /* Variable to save power state 1 - D0, 0 - D3C */
 
 Method (_S0W, 0x0)
 {
-	If (S0IX == 1) {
-		Return (0x04)
-	} Else {
-		Return (0x03)
-	}
+#if !CONFIG(SOC_INTEL_TIGERLAKE_S3)
+	Return (0x04)
+#else
+	Return (0x03)
+#endif	// SOC_INTEL_TIGERLAKE_S3
 }
 
 /*
@@ -40,36 +40,36 @@ Method (_S0W, 0x0)
  */
 Method (_PR0)
 {
-	If (S0IX == 1) {
-		If (DUID == 0) {
-			Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT0 })
-		} Else {
-			Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT1 })
-		}
+#if !CONFIG(SOC_INTEL_TIGERLAKE_S3)
+	If (DUID == 0) {
+		Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT0 })
+	} Else {
+		Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT1 })
+	}
+#else
+	If (DUID == 0) {
+		Return (Package() { \_SB.PCI0.TBT0 })
 	} Else {
-		If (DUID == 0) {
-			Return (Package() { \_SB.PCI0.TBT0 })
-		} Else {
-			Return (Package() { \_SB.PCI0.TBT1 })
-		}
+		Return (Package() { \_SB.PCI0.TBT1 })
 	}
+#endif	// SOC_INTEL_TIGERLAKE_S3
 }
 
 Method (_PR3)
 {
-	If (S0IX == 1) {
-		If (DUID == 0) {
-			Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT0 })
-		} Else {
-			Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT1 })
-		}
+#if !CONFIG(SOC_INTEL_TIGERLAKE_S3)
+	If (DUID == 0) {
+		Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT0 })
+	} Else {
+		Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT1 })
+	}
+#else
+	If (DUID == 0) {
+		Return (Package() { \_SB.PCI0.TBT0 })
 	} Else {
-		If (DUID == 0) {
-			Return (Package() { \_SB.PCI0.TBT0 })
-		} Else {
-			Return (Package() { \_SB.PCI0.TBT1 })
-		}
+		Return (Package() { \_SB.PCI0.TBT1 })
 	}
+#endif	// SOC_INTEL_TIGERLAKE_S3
 }
 
 /*
diff --git a/src/soc/intel/tigerlake/acpi/tcss_pcierp.asl b/src/soc/intel/tigerlake/acpi/tcss_pcierp.asl
index 5ef5dff50357..fda58e70cf46 100644
--- a/src/soc/intel/tigerlake/acpi/tcss_pcierp.asl
+++ b/src/soc/intel/tigerlake/acpi/tcss_pcierp.asl
@@ -247,45 +247,45 @@ Method (_PS3, 0, Serialized)
 
 Method (_S0W, 0x0, NotSerialized)
 {
-	If (S0IX == 1) {
-		Return (0x4)
-	} Else {
-		Return (0x3)
-	}
+#if !CONFIG(SOC_INTEL_TIGERLAKE_S3)
+	Return (0x4)
+#else
+	Return (0x3)
+#endif	// SOC_INTEL_ALDERLAKE_S3
 }
 
 Method (_PR0)
 {
-	If (S0IX == 1) {
-		If ((TUID == 0) || (TUID == 1)) {
-			Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT0 })
-		} Else {
-			Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT1 })
-		}
+#if !CONFIG(SOC_INTEL_TIGERLAKE_S3)
+	If ((TUID == 0) || (TUID == 1)) {
+		Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT0 })
 	} Else {
-		If ((TUID == 0) || (TUID == 1)) {
-			Return (Package() { \_SB.PCI0.TBT0 })
-		} Else {
-			Return (Package() { \_SB.PCI0.TBT1 })
-		}
+		Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT1 })
+	}
+#else
+	If ((TUID == 0) || (TUID == 1)) {
+		Return (Package() { \_SB.PCI0.TBT0 })
+	} Else {
+		Return (Package() { \_SB.PCI0.TBT1 })
 	}
+#endif	// SOC_INTEL_TIGERLAKE_S3
 }
 
 Method (_PR3)
 {
-	If (S0IX == 1) {
-		If ((TUID == 0) || (TUID == 1)) {
-			Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT0 })
-		} Else {
-			Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT1 })
-		}
+#if !CONFIG(SOC_INTEL_TIGERLAKE_S3)
+	If ((TUID == 0) || (TUID == 1)) {
+		Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT0 })
 	} Else {
-		If ((TUID == 0) || (TUID == 1)) {
-			Return (Package() { \_SB.PCI0.TBT0 })
-		} Else {
-			Return (Package() { \_SB.PCI0.TBT1 })
-		}
+		Return (Package() { \_SB.PCI0.D3C, \_SB.PCI0.TBT1 })
+	}
+#else
+	If ((TUID == 0) || (TUID == 1)) {
+		Return (Package() { \_SB.PCI0.TBT0 })
+	} Else {
+		Return (Package() { \_SB.PCI0.TBT1 })
 	}
+#endif	// SOC_INTEL_TIGERLAKE_S3
 }
 
 /*
diff --git a/src/soc/intel/tigerlake/acpi/tcss_xhci.asl b/src/soc/intel/tigerlake/acpi/tcss_xhci.asl
index 1ca4117697c8..a3b8c8faf775 100644
--- a/src/soc/intel/tigerlake/acpi/tcss_xhci.asl
+++ b/src/soc/intel/tigerlake/acpi/tcss_xhci.asl
@@ -30,11 +30,11 @@ Method (_PS3, 0, Serialized)
 
 Method (_S0W, 0x0, NotSerialized)
 {
-	If (S0IX == 1) {
-		Return (0x4)
-	} Else {
-		Return (0x3)
-	}
+#if !CONFIG(SOC_INTEL_TIGERLAKE_S3)
+	Return (0x4)
+#else
+	Return (0x3)
+#endif	// SOC_INTEL_TIGERLAKE_S3
 }
 
 /*
@@ -43,17 +43,17 @@ Method (_S0W, 0x0, NotSerialized)
  */
 Name (SD3C, 0)
 
-If (S0IX == 1) {
-	Method (_PR0)
-	{
-		Return (Package () { \_SB.PCI0.D3C })
-	}
+#if !CONFIG(SOC_INTEL_TIGERLAKE_S3)
+Method (_PR0)
+{
+	Return (Package () { \_SB.PCI0.D3C })
+}
 
-	Method (_PR3)
-	{
-		Return (Package () { \_SB.PCI0.D3C })
-	}
+Method (_PR3)
+{
+	Return (Package () { \_SB.PCI0.D3C })
 }
+#endif	// SOC_INTEL_TIGERLAKE_S3
 
 /*
  * XHCI controller _DSM method