dev-amdgpu,configs,gpu-compute: Add gfx942 version

This is the version for MI300. For the most part, it is the same as
MI200 with the exception of architected flat scratch (not yet
implemented in gem5) and therefore a new version enum is required.

Change-Id: Id18cd7b57c4eebd467c010a3f61e3117beb8d58a

configs/example/gpufs/runfs.py

@@ -134,9 +134,9 @@ def addRunFSOptions(parser):
     parser.add_argument(
         "--gpu-device",
         default="Vega10",
-        choices=["Vega10", "MI100", "MI200"],
-        help="GPU model to run: Vega10 (gfx900), MI100 (gfx908), or "
-        "MI200 (gfx90a)",
+        choices=["Vega10", "MI100", "MI200", "MI300X"],
+        help="GPU model to run: Vega10 (gfx900), MI100 (gfx908), MI200 "
+        "(gfx90a), or MI300X (gfx942).",
     )
 
     parser.add_argument(

configs/example/gpufs/system/amdgpu.py

@@ -191,10 +191,14 @@ def connectGPU(system, args):
         system.pc.south_bridge.gpu.DeviceID = 0x740F
         system.pc.south_bridge.gpu.SubsystemVendorID = 0x1002
         system.pc.south_bridge.gpu.SubsystemID = 0x0C34
+    elif args.gpu_device == "MI300X":
+        system.pc.south_bridge.gpu.DeviceID = 0x740F
+        system.pc.south_bridge.gpu.SubsystemVendorID = 0x1002
+        system.pc.south_bridge.gpu.SubsystemID = 0x0C34
     elif args.gpu_device == "Vega10":
         system.pc.south_bridge.gpu.DeviceID = 0x6863
     else:
-        panic(f"Unknown GPU device: {args.gpu_device}")
+        m5.util.panic(f"Unknown GPU device: {args.gpu_device}")
 
     # Use the gem5 default of 0x280 OR'd  with 0x10 which tells Linux there is
     # a PCI capabilities list to travse.

configs/example/gpufs/system/system.py

@@ -161,7 +161,7 @@ def makeGpuFSSystem(args):
             0x7D000,
         ]
         sdma_sizes = [0x1000] * 8
-    elif args.gpu_device == "MI200":
+    elif args.gpu_device == "MI200" or args.gpu_device == "MI300X":
         num_sdmas = 5
         sdma_bases = [
             0x4980,