diff --git a/include/vkd3d_d3d12.idl b/include/vkd3d_d3d12.idl
index 34aa63b9..ba75e7dd 100644
--- a/include/vkd3d_d3d12.idl
+++ b/include/vkd3d_d3d12.idl
@@ -2277,6 +2277,41 @@ typedef struct D3D12_FEATURE_DATA_D3D12_OPTIONS5
     D3D12_RAYTRACING_TIER RaytracingTier;
 } D3D12_FEATURE_DATA_D3D12_OPTIONS5;
 
+typedef enum D3D12_VARIABLE_SHADING_RATE_TIER
+{
+    D3D12_VARIABLE_SHADING_RATE_TIER_NOT_SUPPORTED = 0x0,
+    D3D12_VARIABLE_SHADING_RATE_TIER_1 = 0x1,
+    D3D12_VARIABLE_SHADING_RATE_TIER_2 = 0x2,
+} D3D12_VARIABLE_SHADING_RATE_TIER;
+
+typedef struct D3D12_FEATURE_DATA_D3D12_OPTIONS6
+{
+    BOOL AdditionalShadingRatesSupported;
+    BOOL PerPrimitiveShadingRateSupportedWithViewportIndexing;
+    D3D12_VARIABLE_SHADING_RATE_TIER VariableShadingRateTier;
+    UINT ShadingRateImageTileSize;
+    BOOL BackgroundProcessingSupported;
+} D3D12_FEATURE_DATA_D3D12_OPTIONS6;
+
+typedef enum D3D12_MESH_SHADER_TIER
+{
+    D3D12_MESH_SHADER_TIER_NOT_SUPPORTED = 0x0,
+    D3D12_MESH_SHADER_TIER_1 = 0xa,
+} D3D12_MESH_SHADER_TIER;
+
+typedef enum D3D12_SAMPLER_FEEDBACK_TIER
+{
+    D3D12_SAMPLER_FEEDBACK_TIER_NOT_SUPPORTED = 0x0,
+    D3D12_SAMPLER_FEEDBACK_TIER_0_9 = 0x5a,
+    D3D12_SAMPLER_FEEDBACK_TIER_1_0 = 0x64,
+} D3D12_SAMPLER_FEEDBACK_TIER;
+
+typedef struct D3D12_FEATURE_DATA_D3D12_OPTIONS7
+{
+    D3D12_MESH_SHADER_TIER MeshShaderTier;
+    D3D12_SAMPLER_FEEDBACK_TIER SamplerFeedbackTier;
+} D3D12_FEATURE_DATA_D3D12_OPTIONS7;
+
 typedef enum D3D12_FEATURE
 {
     D3D12_FEATURE_D3D12_OPTIONS = 0,