Enable experimental native Windows RDNA3 and RDNA4 targets

Share explicit target metadata across build/runtime/package guards, preserve native gfx11 WMMA with a Windows LDS lane exchange, select HIP devices by D3D12 LUID, and reject wrong-target/vkd3d installations before changing game files. Review all issue #10 logs and document compile-only coverage plus RX9070XT regressions.

Co-authored-by: realdody <[email protected]>

scripts/windows/gpu-target.ps1

@@ -1,19 +1,31 @@
 # Shared by the build, diagnostics, staging and game package scripts.
+function Get-D4RGpuTargets {
+    $registry=Join-Path $PSScriptRoot 'gpu-targets.json'
+    if (!(Test-Path -LiteralPath $registry)) { $registry=Join-Path $PSScriptRoot '../../tools/windows/gpu-targets.json' }
+    $data=Get-Content -LiteralPath $registry -Raw | ConvertFrom-Json
+    if ($data.schema -ne 1) { throw 'Unsupported GPU target registry schema.' }
+    return $data.targets
+}
+function Get-D4RGpuTargetInfo([string]$Target) {
+    $info=@(Get-D4RGpuTargets | Where-Object { $_.architecture -eq $Target })
+    if ($info.Count -ne 1) { throw "Unsupported GPU target: $Target" }
+    return $info[0]
+}
 function Get-D4RGpuTarget([string]$Root, [string]$Requested) {
     $configured=$null
     $targetFile=Join-Path $Root 'gpu-target.json'
     if (Test-Path -LiteralPath $targetFile) {
         $configured=(Get-Content -LiteralPath $targetFile -Raw | ConvertFrom-Json).architecture
-        if ($configured -notin @('gfx1200','gfx1201')) { throw "Unsupported package GPU target: $configured" }
+        [void](Get-D4RGpuTargetInfo $configured)
     }
     $target=if ($Requested) { $Requested } elseif ($configured) { $configured } else { 'gfx1201' }
-    if ($target -notin @('gfx1200','gfx1201')) { throw "Unsupported GPU target: $target" }
-    if (!$configured -and $target -ne 'gfx1201') { throw 'A gfx1200 build requires gpu-target.json; rebuild with -GpuArch gfx1200.' }
+    [void](Get-D4RGpuTargetInfo $target)
+    if (!$configured -and $target -ne 'gfx1201') { throw "A $target build requires gpu-target.json; rebuild with -GpuArch $target." }
     if ($configured -and $target -ne $configured) { throw "Requested $target differs from package target $configured" }
     return $target
 }
 function Assert-D4RCodeObjectTarget([string]$Path, [string]$Target) {
-    if ($Target -notin @('gfx1200','gfx1201')) { throw "Unsupported GPU target: $Target" }
+    $info=Get-D4RGpuTargetInfo $Target
     $reader=[IO.BinaryReader]::new([IO.File]::OpenRead($Path))
     try { $header=$reader.ReadBytes(64) } finally { $reader.Dispose() }
     if ($header.Length -ne 64 -or $header[0] -ne 127 -or $header[1] -ne 69 -or $header[2] -ne 76 -or $header[3] -ne 70 -or
@@ -21,6 +33,6 @@ function Assert-D4RCodeObjectTarget([string]$Path, [string]$Target) {
         throw "Invalid AMDGPU ELF64 code object: $Path"
     }
     # LLVM AMDGPU e_flags machine IDs; inspect, never patch or spoof them.
-    $expected=if ($Target -eq 'gfx1200') { 0x48 } else { 0x4e }
+    $expected=$info.elfMachine
     if ($header[48] -ne $expected) { throw "Code object does not target ${Target}: $Path (ELF machine=$($header[48]))" }
 }