WIP: bonw15 GPU ACPI

Change-Id: Ie000be60805029c7fcce9480852f685aa91dd999

src/mainboard/system76/rpl/acpi/mainboard.asl

@@ -14,7 +14,11 @@ Scope (\_SB) {
 		#include "backlight.asl"
 
 #if CONFIG(DRIVERS_GFX_NVIDIA)
-#if CONFIG(SOC_INTEL_ALDERLAKE_PCH_P) || CONFIG(BOARD_SYSTEM76_BONW15)
+#if CONFIG(BOARD_SYSTEM76_BONW15)
+		Scope (PEG1) {
+			#include "../variants/bonw15/acpi/gpu.asl"
+		}
+#elif CONFIG(SOC_INTEL_ALDERLAKE_PCH_P)
 		Scope (PEG2) {
 			#include <drivers/gfx/nvidia/acpi/tigerlake.asl>
 		}

src/mainboard/system76/rpl/variants/bonw15/acpi/dsm.asl

@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#define NV_ERROR_SUCCESS 0x0
+#define NV_ERROR_UNSPECIFIED 0x80000001
+#define NV_ERROR_UNSUPPORTED 0x80000002
+
+#include "gps.asl"
+
+Method (_DSM, 4, Serialized) {
+	Printf("GPU _DSM")
+	If (Arg0 == ToUUID (GPS_DSM_GUID)) {
+		If (ToInteger(Arg1) == GPS_REVISION_ID) {
+			Return (GPS(Arg2, Arg3))
+		} Else {
+			Printf("  Unsupported GPS revision: %o", SFST(Arg1))
+			Return (NV_ERROR_UNSUPPORTED)
+		}
+	} Else {
+		Printf("  Unsupported GUID: %o", IDST(Arg0))
+		Return (NV_ERROR_UNSPECIFIED)
+	}
+}

src/mainboard/system76/rpl/variants/bonw15/acpi/gps.asl

@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#define GPS_DSM_GUID "A3132D01-8CDA-49BA-A52E-BC9D46DF6B81"
+#define GPS_REVISION_ID 0x00000200
+#define GPS_FUNC_SUPPORT 0x00000000
+#define GPS_FUNC_PSHARESTATUS 0x00000020
+#define GPS_FUNC_PSHAREPARAMS 0x0000002A
+
+Method(GPS, 2, Serialized) {
+	Printf("  GPU GPS")
+	Switch(ToInteger(Arg0)) {
+		Case(GPS_FUNC_SUPPORT) {
+			Printf("    Supported Functions")
+			Return(ITOB(
+				(1 << GPS_FUNC_SUPPORT) |
+				(1 << GPS_FUNC_PSHARESTATUS) |
+				(1 << GPS_FUNC_PSHAREPARAMS)
+			))
+		}
+		Case(GPS_FUNC_PSHARESTATUS) {
+			Printf("    Power Share Status")
+			Return(ITOB(0))
+		}
+		Case(GPS_FUNC_PSHAREPARAMS) {
+			Printf("    Power Share Parameters")
+
+			CreateField(Arg1, 0, 4, QTYP) // Query type
+
+			Name(GPSP, Buffer(36) { 0x00 })
+			CreateDWordField(GPSP, 0, RSTS) // Response status
+			CreateDWordField(GPSP, 4, VERS) // Version
+
+			// Set query type of response
+			RSTS = QTYP
+			// Set version of response
+			VERS = 0x00010000
+
+			Switch(ToInteger(QTYP)) {
+				Case(0) {
+					Printf("      Request Current Information")
+					// No required information
+					Return(GPSP)
+				}
+				Case(1) {
+					Printf("      Request Supported Fields")
+					// Support GPU temperature field
+					RSTS |= (1 << 8)
+					Return(GPSP)
+				}
+				Case(2) {
+					Printf("      Request Current Limits")
+					// No required limits
+					Return(GPSP)
+				}
+				Default {
+					Printf("      Unknown Query: %o", SFST(QTYP))
+					Return(NV_ERROR_UNSUPPORTED)
+				}
+			}
+		}
+		Default {
+			Printf("    Unsupported function: %o", SFST(Arg0))
+			Return(NV_ERROR_UNSUPPORTED)
+		}
+	}
+}

src/mainboard/system76/rpl/variants/bonw15/acpi/gpu.asl

@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+Device (DEV0) {
+	Name(_ADR, 0x00000000)
+
+	#include "utility.asl"
+	#include "dsm.asl"
+}
+
+#if CONFIG(DRIVERS_GFX_NVIDIA_DYNAMIC_BOOST)
+Scope (\_SB) {
+	Device(NPCF) {
+		#include "utility.asl"
+		#include "nvpcf.asl"
+	}
+}
+#endif

src/mainboard/system76/rpl/variants/bonw15/acpi/nvpcf.asl

@@ -0,0 +1,111 @@
+#define NVPCF_DSM_GUID "36b49710-2483-11e7-9598-0800200c9a66"
+#define NVPCF_REVISION_ID 0x00000200
+#define NVPCF_ERROR_SUCCESS 0x0
+#define NVPCF_ERROR_GENERIC 0x80000001
+#define NVPCF_ERROR_UNSUPPORTED 0x80000002
+#define NVPCF_FUNC_GET_SUPPORTED 0x00000000
+#define NVPCF_FUNC_GET_STATIC_CONFIG_TABLES 0x00000001
+#define NVPCF_FUNC_UPDATE_DYNAMIC_PARAMS 0x00000002
+
+Name(_HID, "NVDA0820")
+
+Name(_UID, "NPCF")
+
+Method(_DSM, 4, Serialized) {
+	Printf("NVPCF _DSM")
+	If (Arg0 == ToUUID(NVPCF_DSM_GUID)) {
+		If (ToInteger(Arg1) == NVPCF_REVISION_ID) {
+			Return(NPCF(Arg2, Arg3))
+		} Else {
+			Printf("  Unsupported NVPCF revision: %o", SFST(Arg1))
+			Return(NVPCF_ERROR_GENERIC)
+		}
+	} Else {
+		Printf("  Unsupported GUID: %o", IDST(Arg0))
+		Return(NVPCF_ERROR_GENERIC)
+	}
+}
+
+Method(NPCF, 2, Serialized) {
+	Printf("  NVPCF NPCF")
+	Switch(ToInteger(Arg0)) {
+		Case(NVPCF_FUNC_GET_SUPPORTED) {
+			Printf("    Supported Functions")
+			Return(ITOB(
+				(1 << NVPCF_FUNC_GET_SUPPORTED) |
+				(1 << NVPCF_FUNC_GET_STATIC_CONFIG_TABLES) |
+				(1 << NVPCF_FUNC_UPDATE_DYNAMIC_PARAMS)
+			))
+		}
+		Case(NVPCF_FUNC_GET_STATIC_CONFIG_TABLES) {
+			Printf("    Get Static Config")
+			Return(Buffer(14) {
+				// Device table header
+				0x20, 0x03, 0x01,
+				// Intel + NVIDIA
+				0x00,
+				// Controller table header
+				0x23, 0x04, 0x05, 0x01,
+				// Dynamic boost controller
+				0x01,
+				// Supports DC
+				0x01,
+				// Reserved
+				0x00, 0x00, 0x00,
+				// Checksum
+				0xAD
+			})
+		}
+		Case(NVPCF_FUNC_UPDATE_DYNAMIC_PARAMS) {
+			Printf("    Update Dynamic Boost")
+
+			CreateField(Arg1, 0x28, 2, ICMD) // Input command
+
+			Name(PCFP, Buffer(49) {
+				// Table version
+				0x23,
+				// Table header size
+				0x05,
+				// Size of common status in bytes
+				0x10,
+				// Size of controller entry in bytes
+				0x1C,
+				// Other fields filled in later
+			})
+			CreateByteField(PCFP, 0x04, CCNT) // Controller count
+			CreateWordField(PCFP, 0x19, ATPP) // AC TPP offset
+			CreateWordField(PCFP, 0x1D, AMXP) // AC maximum TGP offset
+			CreateWordField(PCFP, 0x21, AMNP) // AC minimum TGP offset
+
+			Switch(ToInteger(ICMD)) {
+				Case(0) {
+					Printf("      Get Controller Params")
+					// Number of controllers
+					CCNT = 1
+					// AC total processor power offset from default TGP in 1/8 watt units
+					ATPP = (CONFIG_DRIVERS_GFX_NVIDIA_DYNAMIC_BOOST_TPP << 3)
+					// AC maximum TGP offset from default TGP in 1/8 watt units
+					AMXP = (CONFIG_DRIVERS_GFX_NVIDIA_DYNAMIC_BOOST_MAX << 3)
+					// AC minimum TGP offset from default TGP in 1/8 watt units
+					AMNP = (CONFIG_DRIVERS_GFX_NVIDIA_DYNAMIC_BOOST_MIN << 3)
+					Printf("PCFP: %o", SFST(PCFP))
+					Return(PCFP)
+				}
+				Case(1) {
+					Printf("      Set Controller Status")
+					//TODO
+					Printf("PCFP: %o", SFST(PCFP))
+					Return(PCFP)
+				}
+				Default {
+					Printf("      Unknown Input Command: %o", SFST(ICMD))
+					Return(NV_ERROR_UNSUPPORTED)
+				}
+			}
+		}
+		Default {
+			Printf("    Unsupported function: %o", SFST(Arg0))
+			Return(NVPCF_ERROR_UNSUPPORTED)
+		}
+	}
+}

src/mainboard/system76/rpl/variants/bonw15/acpi/utility.asl

@@ -0,0 +1,63 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+// Convert a byte to a hex string, trimming extra parts
+Method (BHEX, 1) {
+	Local0 = ToHexString(Arg0)
+	Return (Mid(Local0, SizeOf(Local0) - 2, 2))
+}
+
+// UUID to string
+Method (IDST, 1) {
+	Local0 = ""
+	Fprintf(
+		Local0,
+		"%o%o%o%o-%o%o-%o%o-%o%o-%o%o%o%o%o%o",
+		BHEX(DerefOf(Arg0[3])),
+		BHEX(DerefOf(Arg0[2])),
+		BHEX(DerefOf(Arg0[1])),
+		BHEX(DerefOf(Arg0[0])),
+		BHEX(DerefOf(Arg0[5])),
+		BHEX(DerefOf(Arg0[4])),
+		BHEX(DerefOf(Arg0[7])),
+		BHEX(DerefOf(Arg0[6])),
+		BHEX(DerefOf(Arg0[8])),
+		BHEX(DerefOf(Arg0[9])),
+		BHEX(DerefOf(Arg0[10])),
+		BHEX(DerefOf(Arg0[11])),
+		BHEX(DerefOf(Arg0[12])),
+		BHEX(DerefOf(Arg0[13])),
+		BHEX(DerefOf(Arg0[14])),
+		BHEX(DerefOf(Arg0[15]))
+	)
+	Return (Local0)
+}
+
+// Safe hex conversion, checks type first
+Method (SFST, 1) {
+	Local0 = ObjectType(Arg0)
+	If (Local0 == 1 || Local0 == 2 || Local0 == 3) {
+		Return (ToHexString(Arg0))
+	} Else {
+		Return (Concatenate("Type: ", Arg0))
+	}
+}
+
+// Convert from 4-byte buffer to 32-bit integer
+Method (BTOI, 1) {
+	Return(
+		DerefOf(Arg0[0]) |
+		(DerefOf(Arg0[1]) << 8) |
+		(DerefOf(Arg0[2]) << 16) |
+		(DerefOf(Arg0[3]) << 24)
+	)
+}
+
+// Convert from 32-bit integer to 4-byte buffer
+Method (ITOB, 1) {
+	Local0 = Buffer(4) { 0, 0, 0, 0 }
+	Local0[0] = Arg0 & 0xFF
+	Local0[1] = (Arg0 >> 8) & 0xFF
+	Local0[2] = (Arg0 >> 16) & 0xFF
+	Local0[3] = (Arg0 >> 24) & 0xFF
+	Return (Local0)
+}