1 files changed, 100 insertions, 0 deletions
diff --git a/src/mainboard/google/brox/acpi/gpu_top.asl b/src/mainboard/google/brox/acpi/gpu_top.asl
new file mode 100644
index 0000000000..492502c3d4
--- /dev/null
+++ b/src/mainboard/google/brox/acpi/gpu_top.asl
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "gpu_defines.h"
+
+Scope (\_SB.PCI0.PEG0)
+{
+	#include "peg.asl"
+
+	Device (PEGP)
+	{
+		Name (_ADR, 0x0)
+		OperationRegion (PCIC, PCI_Config, 0x00, 0x100)
+		Field (PCIC, DWordAcc, NoLock, Preserve)
+		{
+			NVID,	16,
+			NDID,	16,
+			CMDR,	8,
+			VGAR,	2008,			/* VGA Registers */
+		}
+
+		#include "utility.asl"
+		#include "power.asl"
+		#include "nvop.asl"
+		#include "nvjt.asl"
+		#include "nbci.asl"
+		#include "nvpcf.asl"
+		#include "gps.asl"
+		#include "gpu_ec.asl"
+
+		/* Convert D Notify from EC to GPU */
+		Method (CNVD, 1, NotSerialized)
+		{
+			Switch (ToInteger(Arg0)) {
+				Case (D1_EC) { Return (D1_GPU) }
+				Case (D2_EC) { Return (D2_GPU) }
+				Case (D3_EC) { Return (D3_GPU) }
+				Case (D4_EC) { Return (D4_GPU) }
+				Case (D5_EC) { Return (D5_GPU) }
+				Default { Return (D5_GPU) }
+			}
+		}
+
+		/* Current D Notify Value, defaults to D1
+		* Arg0 == Shared value
+		* Arg1 == force notification if no change (0 or 1)
+		*/
+		Name (CDNV, D1_EC)
+		Method (DNOT, 2, Serialized)
+		{
+			Printf ("EC: GPU D-Notify, %o", Arg0)
+			If ((Arg0 != CDNV) || (Arg1 == 1))
+			{
+				CDNV = Arg0
+				Local0 = CNVD (Arg0)
+				Notify (\_SB.PCI0.PEG0.PEGP, Local0)
+			}
+		}
+
+		Method (_DSM, 4, Serialized)
+		{
+			If (Arg0 == ToUUID (UUID_NVOP))
+			{
+				If (ToInteger(Arg1) >= REVISION_MIN_NVOP)
+				{
+					Return (NVOP (Arg2, Arg3))
+				}
+			}
+			ElseIf (Arg0 == ToUUID (UUID_NVJT))
+			{
+				If (ToInteger (Arg1) >= REVISION_MIN_NVJT)
+				{
+					Return (NVJT (Arg2, Arg3))
+				}
+			}
+			ElseIf (Arg0 == ToUUID (UUID_NBCI))
+			{
+				If (ToInteger (Arg1) >= REVISION_MIN_NBCI)
+				{
+					Return (NBCI (Arg2, Arg3))
+				}
+			}
+			ElseIf (Arg0 == ToUUID (UUID_NVPCF))
+			{
+				If (ToInteger (Arg1) >= REVISION_MIN_NVPCF)
+				{
+					Return (NPCF (Arg2, Arg3))
+				}
+			}
+			ElseIf (Arg0 == ToUUID (UUID_GPS))
+			{
+				If (ToInteger (Arg1) >= REVISION_MIN_GPS)
+				{
+					Return (GPS (Arg2, Arg3))
+				}
+			}
+
+			Return (NV_ERROR_UNSUPPORTED)
+		}
+	}
+}