28 files changed, 605 insertions, 91 deletions

diff --git a/src/shader_recompiler/CMakeLists.txt b/src/shader_recompiler/CMakeLists.txt
index bbbfa98a3..7c11d15bf 100644
--- a/src/shader_recompiler/CMakeLists.txt
+++ b/src/shader_recompiler/CMakeLists.txt
@@ -41,6 +41,8 @@ add_library(shader_recompiler STATIC
     frontend/ir/opcodes.cpp
     frontend/ir/opcodes.h
     frontend/ir/opcodes.inc
+    frontend/ir/patch.cpp
+    frontend/ir/patch.h
     frontend/ir/post_order.cpp
     frontend/ir/post_order.h
     frontend/ir/pred.h
diff --git a/src/shader_recompiler/backend/spirv/emit_context.cpp b/src/shader_recompiler/backend/spirv/emit_context.cpp
index 032cf5e03..067f61613 100644
--- a/src/shader_recompiler/backend/spirv/emit_context.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_context.cpp
@@ -125,19 +125,36 @@ u32 NumVertices(InputTopology input_topology) {
     throw InvalidArgument("Invalid input topology {}", input_topology);
 }
 
-Id DefineInput(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin = std::nullopt) {
-    if (ctx.stage == Stage::Geometry) {
-        const u32 num_vertices{NumVertices(ctx.profile.input_topology)};
-        type = ctx.TypeArray(type, ctx.Constant(ctx.U32[1], num_vertices));
+Id DefineInput(EmitContext& ctx, Id type, bool per_invocation,
+               std::optional<spv::BuiltIn> builtin = std::nullopt) {
+    switch (ctx.stage) {
+    case Stage::TessellationControl:
+    case Stage::TessellationEval:
+        if (per_invocation) {
+            type = ctx.TypeArray(type, ctx.Constant(ctx.U32[1], 32u));
+        }
+        break;
+    case Stage::Geometry:
+        if (per_invocation) {
+            const u32 num_vertices{NumVertices(ctx.profile.input_topology)};
+            type = ctx.TypeArray(type, ctx.Constant(ctx.U32[1], num_vertices));
+        }
+        break;
+    default:
+        break;
     }
     return DefineVariable(ctx, type, builtin, spv::StorageClass::Input);
 }
 
-Id DefineOutput(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin = std::nullopt) {
+Id DefineOutput(EmitContext& ctx, Id type, std::optional<u32> invocations,
+                std::optional<spv::BuiltIn> builtin = std::nullopt) {
+    if (invocations && ctx.stage == Stage::TessellationControl) {
+        type = ctx.TypeArray(type, ctx.Constant(ctx.U32[1], *invocations));
+    }
     return DefineVariable(ctx, type, builtin, spv::StorageClass::Output);
 }
 
-void DefineGenericOutput(EmitContext& ctx, size_t index) {
+void DefineGenericOutput(EmitContext& ctx, size_t index, std::optional<u32> invocations) {
     static constexpr std::string_view swizzle{"xyzw"};
     const size_t base_attr_index{static_cast<size_t>(IR::Attribute::Generic0X) + index * 4};
     u32 element{0};
@@ -150,7 +167,7 @@ void DefineGenericOutput(EmitContext& ctx, size_t index) {
         }
         const u32 num_components{xfb_varying ? xfb_varying->components : remainder};
 
-        const Id id{DefineOutput(ctx, ctx.F32[num_components])};
+        const Id id{DefineOutput(ctx, ctx.F32[num_components], invocations)};
         ctx.Decorate(id, spv::Decoration::Location, static_cast<u32>(index));
         if (element > 0) {
             ctx.Decorate(id, spv::Decoration::Component, element);
@@ -161,10 +178,10 @@ void DefineGenericOutput(EmitContext& ctx, size_t index) {
             ctx.Decorate(id, spv::Decoration::Offset, xfb_varying->offset);
         }
         if (num_components < 4 || element > 0) {
-            ctx.Name(id, fmt::format("out_attr{}", index));
-        } else {
             const std::string_view subswizzle{swizzle.substr(element, num_components)};
             ctx.Name(id, fmt::format("out_attr{}_{}", index, subswizzle));
+        } else {
+            ctx.Name(id, fmt::format("out_attr{}", index));
         }
         const GenericElementInfo info{
             .id = id,
@@ -383,7 +400,7 @@ EmitContext::EmitContext(const Profile& profile_, IR::Program& program, u32& bin
     AddCapability(spv::Capability::Shader);
     DefineCommonTypes(program.info);
     DefineCommonConstants();
-    DefineInterfaces(program.info);
+    DefineInterfaces(program);
     DefineLocalMemory(program);
     DefineSharedMemory(program);
     DefineSharedMemoryFunctions(program);
@@ -472,9 +489,9 @@ void EmitContext::DefineCommonConstants() {
     f32_zero_value = Constant(F32[1], 0.0f);
 }
 
-void EmitContext::DefineInterfaces(const Info& info) {
-    DefineInputs(info);
-    DefineOutputs(info);
+void EmitContext::DefineInterfaces(const IR::Program& program) {
+    DefineInputs(program.info);
+    DefineOutputs(program);
 }
 
 void EmitContext::DefineLocalMemory(const IR::Program& program) {
@@ -972,26 +989,29 @@ void EmitContext::DefineLabels(IR::Program& program) {
 
 void EmitContext::DefineInputs(const Info& info) {
     if (info.uses_workgroup_id) {
-        workgroup_id = DefineInput(*this, U32[3], spv::BuiltIn::WorkgroupId);
+        workgroup_id = DefineInput(*this, U32[3], false, spv::BuiltIn::WorkgroupId);
     }
     if (info.uses_local_invocation_id) {
-        local_invocation_id = DefineInput(*this, U32[3], spv::BuiltIn::LocalInvocationId);
+        local_invocation_id = DefineInput(*this, U32[3], false, spv::BuiltIn::LocalInvocationId);
+    }
+    if (info.uses_invocation_id) {
+        invocation_id = DefineInput(*this, U32[1], false, spv::BuiltIn::InvocationId);
     }
     if (info.uses_is_helper_invocation) {
-        is_helper_invocation = DefineInput(*this, U1, spv::BuiltIn::HelperInvocation);
+        is_helper_invocation = DefineInput(*this, U1, false, spv::BuiltIn::HelperInvocation);
     }
     if (info.uses_subgroup_mask) {
-        subgroup_mask_eq = DefineInput(*this, U32[4], spv::BuiltIn::SubgroupEqMaskKHR);
-        subgroup_mask_lt = DefineInput(*this, U32[4], spv::BuiltIn::SubgroupLtMaskKHR);
-        subgroup_mask_le = DefineInput(*this, U32[4], spv::BuiltIn::SubgroupLeMaskKHR);
-        subgroup_mask_gt = DefineInput(*this, U32[4], spv::BuiltIn::SubgroupGtMaskKHR);
-        subgroup_mask_ge = DefineInput(*this, U32[4], spv::BuiltIn::SubgroupGeMaskKHR);
+        subgroup_mask_eq = DefineInput(*this, U32[4], false, spv::BuiltIn::SubgroupEqMaskKHR);
+        subgroup_mask_lt = DefineInput(*this, U32[4], false, spv::BuiltIn::SubgroupLtMaskKHR);
+        subgroup_mask_le = DefineInput(*this, U32[4], false, spv::BuiltIn::SubgroupLeMaskKHR);
+        subgroup_mask_gt = DefineInput(*this, U32[4], false, spv::BuiltIn::SubgroupGtMaskKHR);
+        subgroup_mask_ge = DefineInput(*this, U32[4], false, spv::BuiltIn::SubgroupGeMaskKHR);
     }
     if (info.uses_subgroup_invocation_id ||
         (profile.warp_size_potentially_larger_than_guest &&
          (info.uses_subgroup_vote || info.uses_subgroup_mask))) {
         subgroup_local_invocation_id =
-            DefineInput(*this, U32[1], spv::BuiltIn::SubgroupLocalInvocationId);
+            DefineInput(*this, U32[1], false, spv::BuiltIn::SubgroupLocalInvocationId);
     }
     if (info.uses_fswzadd) {
         const Id f32_one{Constant(F32[1], 1.0f)};
@@ -1004,29 +1024,32 @@ void EmitContext::DefineInputs(const Info& info) {
     if (info.loads_position) {
         const bool is_fragment{stage != Stage::Fragment};
         const spv::BuiltIn built_in{is_fragment ? spv::BuiltIn::Position : spv::BuiltIn::FragCoord};
-        input_position = DefineInput(*this, F32[4], built_in);
+        input_position = DefineInput(*this, F32[4], true, built_in);
     }
     if (info.loads_instance_id) {
         if (profile.support_vertex_instance_id) {
-            instance_id = DefineInput(*this, U32[1], spv::BuiltIn::InstanceId);
+            instance_id = DefineInput(*this, U32[1], true, spv::BuiltIn::InstanceId);
         } else {
-            instance_index = DefineInput(*this, U32[1], spv::BuiltIn::InstanceIndex);
-            base_instance = DefineInput(*this, U32[1], spv::BuiltIn::BaseInstance);
+            instance_index = DefineInput(*this, U32[1], true, spv::BuiltIn::InstanceIndex);
+            base_instance = DefineInput(*this, U32[1], true, spv::BuiltIn::BaseInstance);
         }
     }
     if (info.loads_vertex_id) {
         if (profile.support_vertex_instance_id) {
-            vertex_id = DefineInput(*this, U32[1], spv::BuiltIn::VertexId);
+            vertex_id = DefineInput(*this, U32[1], true, spv::BuiltIn::VertexId);
         } else {
-            vertex_index = DefineInput(*this, U32[1], spv::BuiltIn::VertexIndex);
-            base_vertex = DefineInput(*this, U32[1], spv::BuiltIn::BaseVertex);
+            vertex_index = DefineInput(*this, U32[1], true, spv::BuiltIn::VertexIndex);
+            base_vertex = DefineInput(*this, U32[1], true, spv::BuiltIn::BaseVertex);
         }
     }
     if (info.loads_front_face) {
-        front_face = DefineInput(*this, U1, spv::BuiltIn::FrontFacing);
+        front_face = DefineInput(*this, U1, true, spv::BuiltIn::FrontFacing);
     }
     if (info.loads_point_coord) {
-        point_coord = DefineInput(*this, F32[2], spv::BuiltIn::PointCoord);
+        point_coord = DefineInput(*this, F32[2], true, spv::BuiltIn::PointCoord);
+    }
+    if (info.loads_tess_coord) {
+        tess_coord = DefineInput(*this, F32[3], false, spv::BuiltIn::TessCoord);
     }
     for (size_t index = 0; index < info.input_generics.size(); ++index) {
         const InputVarying generic{info.input_generics[index]};
@@ -1038,7 +1061,7 @@ void EmitContext::DefineInputs(const Info& info) {
             continue;
         }
         const Id type{GetAttributeType(*this, input_type)};
-        const Id id{DefineInput(*this, type)};
+        const Id id{DefineInput(*this, type, true)};
         Decorate(id, spv::Decoration::Location, static_cast<u32>(index));
         Name(id, fmt::format("in_attr{}", index));
         input_generics[index] = id;
@@ -1059,58 +1082,98 @@ void EmitContext::DefineInputs(const Info& info) {
             break;
         }
     }
+    if (stage == Stage::TessellationEval) {
+        for (size_t index = 0; index < info.uses_patches.size(); ++index) {
+            if (!info.uses_patches[index]) {
+                continue;
+            }
+            const Id id{DefineInput(*this, F32[4], false)};
+            Decorate(id, spv::Decoration::Patch);
+            Decorate(id, spv::Decoration::Location, static_cast<u32>(index));
+            patches[index] = id;
+        }
+    }
 }
 
-void EmitContext::DefineOutputs(const Info& info) {
+void EmitContext::DefineOutputs(const IR::Program& program) {
+    const Info& info{program.info};
+    const std::optional<u32> invocations{program.invocations};
     if (info.stores_position || stage == Stage::VertexB) {
-        output_position = DefineOutput(*this, F32[4], spv::BuiltIn::Position);
+        output_position = DefineOutput(*this, F32[4], invocations, spv::BuiltIn::Position);
     }
     if (info.stores_point_size || profile.fixed_state_point_size) {
         if (stage == Stage::Fragment) {
             throw NotImplementedException("Storing PointSize in fragment stage");
         }
-        output_point_size = DefineOutput(*this, F32[1], spv::BuiltIn::PointSize);
+        output_point_size = DefineOutput(*this, F32[1], invocations, spv::BuiltIn::PointSize);
     }
     if (info.stores_clip_distance) {
         if (stage == Stage::Fragment) {
             throw NotImplementedException("Storing ClipDistance in fragment stage");
         }
         const Id type{TypeArray(F32[1], Constant(U32[1], 8U))};
-        clip_distances = DefineOutput(*this, type, spv::BuiltIn::ClipDistance);
+        clip_distances = DefineOutput(*this, type, invocations, spv::BuiltIn::ClipDistance);
     }
     if (info.stores_layer &&
         (profile.support_viewport_index_layer_non_geometry || stage == Stage::Geometry)) {
         if (stage == Stage::Fragment) {
             throw NotImplementedException("Storing Layer in fragment stage");
         }
-        layer = DefineOutput(*this, U32[1], spv::BuiltIn::Layer);
+        layer = DefineOutput(*this, U32[1], invocations, spv::BuiltIn::Layer);
     }
     if (info.stores_viewport_index &&
         (profile.support_viewport_index_layer_non_geometry || stage == Stage::Geometry)) {
         if (stage == Stage::Fragment) {
             throw NotImplementedException("Storing ViewportIndex in fragment stage");
         }
-        viewport_index = DefineOutput(*this, U32[1], spv::BuiltIn::ViewportIndex);
+        viewport_index = DefineOutput(*this, U32[1], invocations, spv::BuiltIn::ViewportIndex);
     }
     for (size_t index = 0; index < info.stores_generics.size(); ++index) {
         if (info.stores_generics[index]) {
-            DefineGenericOutput(*this, index);
+            DefineGenericOutput(*this, index, invocations);
         }
     }
-    if (stage == Stage::Fragment) {
+    switch (stage) {
+    case Stage::TessellationControl:
+        if (info.stores_tess_level_outer) {
+            const Id type{TypeArray(F32[1], Constant(U32[1], 4))};
+            output_tess_level_outer =
+                DefineOutput(*this, type, std::nullopt, spv::BuiltIn::TessLevelOuter);
+            Decorate(output_tess_level_outer, spv::Decoration::Patch);
+        }
+        if (info.stores_tess_level_inner) {
+            const Id type{TypeArray(F32[1], Constant(U32[1], 2))};
+            output_tess_level_inner =
+                DefineOutput(*this, type, std::nullopt, spv::BuiltIn::TessLevelInner);
+            Decorate(output_tess_level_inner, spv::Decoration::Patch);
+        }
+        for (size_t index = 0; index < info.uses_patches.size(); ++index) {
+            if (!info.uses_patches[index]) {
+                continue;
+            }
+            const Id id{DefineOutput(*this, F32[4], std::nullopt)};
+            Decorate(id, spv::Decoration::Patch);
+            Decorate(id, spv::Decoration::Location, static_cast<u32>(index));
+            patches[index] = id;
+        }
+        break;
+    case Stage::Fragment:
         for (u32 index = 0; index < 8; ++index) {
             if (!info.stores_frag_color[index]) {
                 continue;
             }
-            frag_color[index] = DefineOutput(*this, F32[4]);
+            frag_color[index] = DefineOutput(*this, F32[4], std::nullopt);
             Decorate(frag_color[index], spv::Decoration::Location, index);
             Name(frag_color[index], fmt::format("frag_color{}", index));
         }
         if (info.stores_frag_depth) {
-            frag_depth = DefineOutput(*this, F32[1]);
+            frag_depth = DefineOutput(*this, F32[1], std::nullopt);
             Decorate(frag_depth, spv::Decoration::BuiltIn, spv::BuiltIn::FragDepth);
             Name(frag_depth, "frag_depth");
         }
+        break;
+    default:
+        break;
     }
 }
 
diff --git a/src/shader_recompiler/backend/spirv/emit_context.h b/src/shader_recompiler/backend/spirv/emit_context.h
index 0da14d5f8..ba0a253b3 100644
--- a/src/shader_recompiler/backend/spirv/emit_context.h
+++ b/src/shader_recompiler/backend/spirv/emit_context.h
@@ -147,6 +147,7 @@ public:
 
     Id workgroup_id{};
     Id local_invocation_id{};
+    Id invocation_id{};
     Id is_helper_invocation{};
     Id subgroup_local_invocation_id{};
     Id subgroup_mask_eq{};
@@ -162,6 +163,7 @@ public:
     Id base_vertex{};
     Id front_face{};
     Id point_coord{};
+    Id tess_coord{};
     Id clip_distances{};
     Id layer{};
     Id viewport_index{};
@@ -204,6 +206,10 @@ public:
     Id output_position{};
     std::array<std::array<GenericElementInfo, 4>, 32> output_generics{};
 
+    Id output_tess_level_outer{};
+    Id output_tess_level_inner{};
+    std::array<Id, 30> patches{};
+
     std::array<Id, 8> frag_color{};
     Id frag_depth{};
 
@@ -212,7 +218,7 @@ public:
 private:
     void DefineCommonTypes(const Info& info);
     void DefineCommonConstants();
-    void DefineInterfaces(const Info& info);
+    void DefineInterfaces(const IR::Program& program);
     void DefineLocalMemory(const IR::Program& program);
     void DefineSharedMemory(const IR::Program& program);
     void DefineSharedMemoryFunctions(const IR::Program& program);
@@ -226,7 +232,7 @@ private:
     void DefineLabels(IR::Program& program);
 
     void DefineInputs(const Info& info);
-    void DefineOutputs(const Info& info);
+    void DefineOutputs(const IR::Program& program);
 };
 
 } // namespace Shader::Backend::SPIRV
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv.cpp b/src/shader_recompiler/backend/spirv/emit_spirv.cpp
index 3bf4c6a9e..105602ccf 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv.cpp
@@ -45,6 +45,8 @@ ArgType Arg(EmitContext& ctx, const IR::Value& arg) {
         return arg.Label();
     } else if constexpr (std::is_same_v<ArgType, IR::Attribute>) {
         return arg.Attribute();
+    } else if constexpr (std::is_same_v<ArgType, IR::Patch>) {
+        return arg.Patch();
     } else if constexpr (std::is_same_v<ArgType, IR::Reg>) {
         return arg.Reg();
     }
@@ -120,6 +122,30 @@ Id DefineMain(EmitContext& ctx, IR::Program& program) {
     return main;
 }
 
+spv::ExecutionMode ExecutionMode(TessPrimitive primitive) {
+    switch (primitive) {
+    case TessPrimitive::Isolines:
+        return spv::ExecutionMode::Isolines;
+    case TessPrimitive::Triangles:
+        return spv::ExecutionMode::Triangles;
+    case TessPrimitive::Quads:
+        return spv::ExecutionMode::Quads;
+    }
+    throw InvalidArgument("Tessellation primitive {}", primitive);
+}
+
+spv::ExecutionMode ExecutionMode(TessSpacing spacing) {
+    switch (spacing) {
+    case TessSpacing::Equal:
+        return spv::ExecutionMode::SpacingEqual;
+    case TessSpacing::FractionalOdd:
+        return spv::ExecutionMode::SpacingFractionalOdd;
+    case TessSpacing::FractionalEven:
+        return spv::ExecutionMode::SpacingFractionalEven;
+    }
+    throw InvalidArgument("Tessellation spacing {}", spacing);
+}
+
 void DefineEntryPoint(const IR::Program& program, EmitContext& ctx, Id main) {
     const std::span interfaces(ctx.interfaces.data(), ctx.interfaces.size());
     spv::ExecutionModel execution_model{};
@@ -134,6 +160,19 @@ void DefineEntryPoint(const IR::Program& program, EmitContext& ctx, Id main) {
     case Stage::VertexB:
         execution_model = spv::ExecutionModel::Vertex;
         break;
+    case Stage::TessellationControl:
+        execution_model = spv::ExecutionModel::TessellationControl;
+        ctx.AddCapability(spv::Capability::Tessellation);
+        ctx.AddExecutionMode(main, spv::ExecutionMode::OutputVertices, program.invocations);
+        break;
+    case Stage::TessellationEval:
+        execution_model = spv::ExecutionModel::TessellationEvaluation;
+        ctx.AddCapability(spv::Capability::Tessellation);
+        ctx.AddExecutionMode(main, ExecutionMode(ctx.profile.tess_primitive));
+        ctx.AddExecutionMode(main, ExecutionMode(ctx.profile.tess_spacing));
+        ctx.AddExecutionMode(main, ctx.profile.tess_clockwise ? spv::ExecutionMode::VertexOrderCw
+                                                              : spv::ExecutionMode::VertexOrderCcw);
+        break;
     case Stage::Geometry:
         execution_model = spv::ExecutionModel::Geometry;
         ctx.AddCapability(spv::Capability::Geometry);
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv.h b/src/shader_recompiler/backend/spirv/emit_spirv.h
index 55b2edba0..8caf30f1b 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv.h
+++ b/src/shader_recompiler/backend/spirv/emit_spirv.h
@@ -55,6 +55,8 @@ Id EmitGetAttribute(EmitContext& ctx, IR::Attribute attr, Id vertex);
 void EmitSetAttribute(EmitContext& ctx, IR::Attribute attr, Id value, Id vertex);
 Id EmitGetAttributeIndexed(EmitContext& ctx, Id offset, Id vertex);
 void EmitSetAttributeIndexed(EmitContext& ctx, Id offset, Id value, Id vertex);
+Id EmitGetPatch(EmitContext& ctx, IR::Patch patch);
+void EmitSetPatch(EmitContext& ctx, IR::Patch patch, Id value);
 void EmitSetFragColor(EmitContext& ctx, u32 index, u32 component, Id value);
 void EmitSetFragDepth(EmitContext& ctx, Id value);
 void EmitGetZFlag(EmitContext& ctx);
@@ -67,6 +69,7 @@ void EmitSetCFlag(EmitContext& ctx);
 void EmitSetOFlag(EmitContext& ctx);
 Id EmitWorkgroupId(EmitContext& ctx);
 Id EmitLocalInvocationId(EmitContext& ctx);
+Id EmitInvocationId(EmitContext& ctx);
 Id EmitIsHelperInvocation(EmitContext& ctx);
 Id EmitLoadLocal(EmitContext& ctx, Id word_offset);
 void EmitWriteLocal(EmitContext& ctx, Id word_offset, Id value);
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
index 59c56c5ba..4a1aeece5 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
@@ -32,13 +32,26 @@ std::optional<AttrInfo> AttrTypes(EmitContext& ctx, u32 index) {
 
 template <typename... Args>
 Id AttrPointer(EmitContext& ctx, Id pointer_type, Id vertex, Id base, Args&&... args) {
-    if (ctx.stage == Stage::Geometry) {
+    switch (ctx.stage) {
+    case Stage::TessellationControl:
+    case Stage::TessellationEval:
+    case Stage::Geometry:
         return ctx.OpAccessChain(pointer_type, base, vertex, std::forward<Args>(args)...);
-    } else {
+    default:
         return ctx.OpAccessChain(pointer_type, base, std::forward<Args>(args)...);
     }
 }
 
+template <typename... Args>
+Id OutputAccessChain(EmitContext& ctx, Id result_type, Id base, Args&&... args) {
+    if (ctx.stage == Stage::TessellationControl) {
+        const Id invocation_id{ctx.OpLoad(ctx.U32[1], ctx.invocation_id)};
+        return ctx.OpAccessChain(result_type, base, invocation_id, std::forward<Args>(args)...);
+    } else {
+        return ctx.OpAccessChain(result_type, base, std::forward<Args>(args)...);
+    }
+}
+
 std::optional<Id> OutputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
     if (IR::IsGeneric(attr)) {
         const u32 index{IR::GenericAttributeIndex(attr)};
@@ -49,7 +62,7 @@ std::optional<Id> OutputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
         } else {
             const u32 index_element{element - info.first_element};
             const Id index_id{ctx.Constant(ctx.U32[1], index_element)};
-            return ctx.OpAccessChain(ctx.output_f32, info.id, index_id);
+            return OutputAccessChain(ctx, ctx.output_f32, info.id, index_id);
         }
     }
     switch (attr) {
@@ -61,7 +74,7 @@ std::optional<Id> OutputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
     case IR::Attribute::PositionW: {
         const u32 element{static_cast<u32>(attr) % 4};
         const Id element_id{ctx.Constant(ctx.U32[1], element)};
-        return ctx.OpAccessChain(ctx.output_f32, ctx.output_position, element_id);
+        return OutputAccessChain(ctx, ctx.output_f32, ctx.output_position, element_id);
     }
     case IR::Attribute::ClipDistance0:
     case IR::Attribute::ClipDistance1:
@@ -74,7 +87,7 @@ std::optional<Id> OutputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
         const u32 base{static_cast<u32>(IR::Attribute::ClipDistance0)};
         const u32 index{static_cast<u32>(attr) - base};
         const Id clip_num{ctx.Constant(ctx.U32[1], index)};
-        return ctx.OpAccessChain(ctx.output_f32, ctx.clip_distances, clip_num);
+        return OutputAccessChain(ctx, ctx.output_f32, ctx.clip_distances, clip_num);
     }
     case IR::Attribute::Layer:
         return ctx.profile.support_viewport_index_layer_non_geometry ||
@@ -222,11 +235,18 @@ Id EmitGetAttribute(EmitContext& ctx, IR::Attribute attr, Id vertex) {
                             ctx.Constant(ctx.U32[1], std::numeric_limits<u32>::max()),
                             ctx.u32_zero_value);
     case IR::Attribute::PointSpriteS:
-        return ctx.OpLoad(ctx.F32[1], AttrPointer(ctx, ctx.input_f32, vertex, ctx.point_coord,
-                                                  ctx.u32_zero_value));
+        return ctx.OpLoad(ctx.F32[1],
+                          ctx.OpAccessChain(ctx.input_f32, ctx.point_coord, ctx.u32_zero_value));
     case IR::Attribute::PointSpriteT:
-        return ctx.OpLoad(ctx.F32[1], AttrPointer(ctx, ctx.input_f32, vertex, ctx.point_coord,
-                                                  ctx.Constant(ctx.U32[1], 1U)));
+        return ctx.OpLoad(ctx.F32[1], ctx.OpAccessChain(ctx.input_f32, ctx.point_coord,
+                                                        ctx.Constant(ctx.U32[1], 1U)));
+    case IR::Attribute::TessellationEvaluationPointU:
+        return ctx.OpLoad(ctx.F32[1],
+                          ctx.OpAccessChain(ctx.input_f32, ctx.tess_coord, ctx.u32_zero_value));
+    case IR::Attribute::TessellationEvaluationPointV:
+        return ctx.OpLoad(ctx.F32[1], ctx.OpAccessChain(ctx.input_f32, ctx.tess_coord,
+                                                        ctx.Constant(ctx.U32[1], 1U)));
+
     default:
         throw NotImplementedException("Read attribute {}", attr);
     }
@@ -240,9 +260,12 @@ void EmitSetAttribute(EmitContext& ctx, IR::Attribute attr, Id value, [[maybe_un
 }
 
 Id EmitGetAttributeIndexed(EmitContext& ctx, Id offset, Id vertex) {
-    if (ctx.stage == Stage::Geometry) {
+    switch (ctx.stage) {
+    case Stage::TessellationControl:
+    case Stage::TessellationEval:
+    case Stage::Geometry:
         return ctx.OpFunctionCall(ctx.F32[1], ctx.indexed_load_func, offset, vertex);
-    } else {
+    default:
         return ctx.OpFunctionCall(ctx.F32[1], ctx.indexed_load_func, offset);
     }
 }
@@ -251,6 +274,45 @@ void EmitSetAttributeIndexed(EmitContext& ctx, Id offset, Id value, [[maybe_unus
     ctx.OpFunctionCall(ctx.void_id, ctx.indexed_store_func, offset, value);
 }
 
+Id EmitGetPatch(EmitContext& ctx, IR::Patch patch) {
+    if (!IR::IsGeneric(patch)) {
+        throw NotImplementedException("Non-generic patch load");
+    }
+    const u32 index{IR::GenericPatchIndex(patch)};
+    const Id element{ctx.Constant(ctx.U32[1], IR::GenericPatchElement(patch))};
+    const Id pointer{ctx.OpAccessChain(ctx.input_f32, ctx.patches.at(index), element)};
+    return ctx.OpLoad(ctx.F32[1], pointer);
+}
+
+void EmitSetPatch(EmitContext& ctx, IR::Patch patch, Id value) {
+    const Id pointer{[&] {
+        if (IR::IsGeneric(patch)) {
+            const u32 index{IR::GenericPatchIndex(patch)};
+            const Id element{ctx.Constant(ctx.U32[1], IR::GenericPatchElement(patch))};
+            return ctx.OpAccessChain(ctx.output_f32, ctx.patches.at(index), element);
+        }
+        switch (patch) {
+        case IR::Patch::TessellationLodLeft:
+        case IR::Patch::TessellationLodRight:
+        case IR::Patch::TessellationLodTop:
+        case IR::Patch::TessellationLodBottom: {
+            const u32 index{static_cast<u32>(patch) - u32(IR::Patch::TessellationLodLeft)};
+            const Id index_id{ctx.Constant(ctx.U32[1], index)};
+            return ctx.OpAccessChain(ctx.output_f32, ctx.output_tess_level_outer, index_id);
+        }
+        case IR::Patch::TessellationLodInteriorU:
+            return ctx.OpAccessChain(ctx.output_f32, ctx.output_tess_level_inner,
+                                     ctx.u32_zero_value);
+        case IR::Patch::TessellationLodInteriorV:
+            return ctx.OpAccessChain(ctx.output_f32, ctx.output_tess_level_inner,
+                                     ctx.Constant(ctx.U32[1], 1u));
+        default:
+            throw NotImplementedException("Patch {}", patch);
+        }
+    }()};
+    ctx.OpStore(pointer, value);
+}
+
 void EmitSetFragColor(EmitContext& ctx, u32 index, u32 component, Id value) {
     const Id component_id{ctx.Constant(ctx.U32[1], component)};
     const Id pointer{ctx.OpAccessChain(ctx.output_f32, ctx.frag_color.at(index), component_id)};
@@ -301,6 +363,10 @@ Id EmitLocalInvocationId(EmitContext& ctx) {
     return ctx.OpLoad(ctx.U32[3], ctx.local_invocation_id);
 }
 
+Id EmitInvocationId(EmitContext& ctx) {
+    return ctx.OpLoad(ctx.U32[1], ctx.invocation_id);
+}
+
 Id EmitIsHelperInvocation(EmitContext& ctx) {
     return ctx.OpLoad(ctx.U1, ctx.is_helper_invocation);
 }
diff --git a/src/shader_recompiler/frontend/ir/ir_emitter.cpp b/src/shader_recompiler/frontend/ir/ir_emitter.cpp
index d66eb17a6..b821d9f47 100644
--- a/src/shader_recompiler/frontend/ir/ir_emitter.cpp
+++ b/src/shader_recompiler/frontend/ir/ir_emitter.cpp
@@ -331,6 +331,14 @@ void IREmitter::SetAttributeIndexed(const U32& phys_address, const F32& value, c
     Inst(Opcode::SetAttributeIndexed, phys_address, value, vertex);
 }
 
+F32 IREmitter::GetPatch(Patch patch) {
+    return Inst<F32>(Opcode::GetPatch, patch);
+}
+
+void IREmitter::SetPatch(Patch patch, const F32& value) {
+    Inst(Opcode::SetPatch, patch, value);
+}
+
 void IREmitter::SetFragColor(u32 index, u32 component, const F32& value) {
     Inst(Opcode::SetFragColor, Imm32(index), Imm32(component), value);
 }
@@ -363,6 +371,10 @@ U32 IREmitter::LocalInvocationIdZ() {
     return U32{CompositeExtract(Inst(Opcode::LocalInvocationId), 2)};
 }
 
+U32 IREmitter::InvocationId() {
+    return Inst<U32>(Opcode::InvocationId);
+}
+
 U1 IREmitter::IsHelperInvocation() {
     return Inst<U1>(Opcode::IsHelperInvocation);
 }
diff --git a/src/shader_recompiler/frontend/ir/ir_emitter.h b/src/shader_recompiler/frontend/ir/ir_emitter.h
index e70359eb1..7f8f1ad42 100644
--- a/src/shader_recompiler/frontend/ir/ir_emitter.h
+++ b/src/shader_recompiler/frontend/ir/ir_emitter.h
@@ -84,6 +84,9 @@ public:
     [[nodiscard]] F32 GetAttributeIndexed(const U32& phys_address, const U32& vertex);
     void SetAttributeIndexed(const U32& phys_address, const F32& value, const U32& vertex);
 
+    [[nodiscard]] F32 GetPatch(Patch patch);
+    void SetPatch(Patch patch, const F32& value);
+
     void SetFragColor(u32 index, u32 component, const F32& value);
     void SetFragDepth(const F32& value);
 
@@ -95,6 +98,7 @@ public:
     [[nodiscard]] U32 LocalInvocationIdY();
     [[nodiscard]] U32 LocalInvocationIdZ();
 
+    [[nodiscard]] U32 InvocationId();
     [[nodiscard]] U1 IsHelperInvocation();
 
     [[nodiscard]] U32 LaneId();
diff --git a/src/shader_recompiler/frontend/ir/microinstruction.cpp b/src/shader_recompiler/frontend/ir/microinstruction.cpp
index 204c55fa8..b2d7573d9 100644
--- a/src/shader_recompiler/frontend/ir/microinstruction.cpp
+++ b/src/shader_recompiler/frontend/ir/microinstruction.cpp
@@ -73,6 +73,7 @@ bool Inst::MayHaveSideEffects() const noexcept {
     case Opcode::EndPrimitive:
     case Opcode::SetAttribute:
     case Opcode::SetAttributeIndexed:
+    case Opcode::SetPatch:
     case Opcode::SetFragColor:
     case Opcode::SetFragDepth:
     case Opcode::WriteGlobalU8:
diff --git a/src/shader_recompiler/frontend/ir/opcodes.cpp b/src/shader_recompiler/frontend/ir/opcodes.cpp
index 7d3e0b2ab..7f04b647b 100644
--- a/src/shader_recompiler/frontend/ir/opcodes.cpp
+++ b/src/shader_recompiler/frontend/ir/opcodes.cpp
@@ -24,6 +24,7 @@ constexpr Type Label{Type::Label};
 constexpr Type Reg{Type::Reg};
 constexpr Type Pred{Type::Pred};
 constexpr Type Attribute{Type::Attribute};
+constexpr Type Patch{Type::Patch};
 constexpr Type U1{Type::U1};
 constexpr Type U8{Type::U8};
 constexpr Type U16{Type::U16};
diff --git a/src/shader_recompiler/frontend/ir/opcodes.inc b/src/shader_recompiler/frontend/ir/opcodes.inc
index 7a21fe746..a86542cd8 100644
--- a/src/shader_recompiler/frontend/ir/opcodes.inc
+++ b/src/shader_recompiler/frontend/ir/opcodes.inc
@@ -48,6 +48,8 @@ OPCODE(GetAttribute,                                        F32,            Attr
 OPCODE(SetAttribute,                                        Void,           Attribute,      F32,            U32,                                            )
 OPCODE(GetAttributeIndexed,                                 F32,            U32,            U32,                                                            )
 OPCODE(SetAttributeIndexed,                                 Void,           U32,            F32,            U32,                                            )
+OPCODE(GetPatch,                                            F32,            Patch,                                                                          )
+OPCODE(SetPatch,                                            Void,           Patch,          F32,                                                            )
 OPCODE(SetFragColor,                                        Void,           U32,            U32,            F32,                                            )
 OPCODE(SetFragDepth,                                        Void,           F32,                                                                            )
 OPCODE(GetZFlag,                                            U1,             Void,                                                                           )
@@ -60,6 +62,7 @@ OPCODE(SetCFlag,                                            Void,           U1,
 OPCODE(SetOFlag,                                            Void,           U1,                                                                             )
 OPCODE(WorkgroupId,                                         U32x3,                                                                                          )
 OPCODE(LocalInvocationId,                                   U32x3,                                                                                          )
+OPCODE(InvocationId,                                        U32,                                                                                            )
 OPCODE(IsHelperInvocation,                                  U1,                                                                                             )
 
 // Undefined
diff --git a/src/shader_recompiler/frontend/ir/patch.cpp b/src/shader_recompiler/frontend/ir/patch.cpp
new file mode 100644
index 000000000..1f770bc48
--- /dev/null
+++ b/src/shader_recompiler/frontend/ir/patch.cpp
@@ -0,0 +1,28 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "shader_recompiler/frontend/ir/patch.h"
+#include "shader_recompiler/exception.h"
+
+namespace Shader::IR {
+
+bool IsGeneric(Patch patch) noexcept {
+    return patch >= Patch::Component0 && patch <= Patch::Component119;
+}
+
+u32 GenericPatchIndex(Patch patch) {
+    if (!IsGeneric(patch)) {
+        throw InvalidArgument("Patch {} is not generic", patch);
+    }
+    return (static_cast<u32>(patch) - static_cast<u32>(Patch::Component0)) / 4;
+}
+
+u32 GenericPatchElement(Patch patch) {
+    if (!IsGeneric(patch)) {
+        throw InvalidArgument("Patch {} is not generic", patch);
+    }
+    return (static_cast<u32>(patch) - static_cast<u32>(Patch::Component0)) % 4;
+}
+
+} // namespace Shader::IR
diff --git a/src/shader_recompiler/frontend/ir/patch.h b/src/shader_recompiler/frontend/ir/patch.h
new file mode 100644
index 000000000..6d66ff0d6
--- /dev/null
+++ b/src/shader_recompiler/frontend/ir/patch.h
@@ -0,0 +1,149 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace Shader::IR {
+
+enum class Patch : u64 {
+    TessellationLodLeft,
+    TessellationLodTop,
+    TessellationLodRight,
+    TessellationLodBottom,
+    TessellationLodInteriorU,
+    TessellationLodInteriorV,
+    ComponentPadding0,
+    ComponentPadding1,
+    Component0,
+    Component1,
+    Component2,
+    Component3,
+    Component4,
+    Component5,
+    Component6,
+    Component7,
+    Component8,
+    Component9,
+    Component10,
+    Component11,
+    Component12,
+    Component13,
+    Component14,
+    Component15,
+    Component16,
+    Component17,
+    Component18,
+    Component19,
+    Component20,
+    Component21,
+    Component22,
+    Component23,
+    Component24,
+    Component25,
+    Component26,
+    Component27,
+    Component28,
+    Component29,
+    Component30,
+    Component31,
+    Component32,
+    Component33,
+    Component34,
+    Component35,
+    Component36,
+    Component37,
+    Component38,
+    Component39,
+    Component40,
+    Component41,
+    Component42,
+    Component43,
+    Component44,
+    Component45,
+    Component46,
+    Component47,
+    Component48,
+    Component49,
+    Component50,
+    Component51,
+    Component52,
+    Component53,
+    Component54,
+    Component55,
+    Component56,
+    Component57,
+    Component58,
+    Component59,
+    Component60,
+    Component61,
+    Component62,
+    Component63,
+    Component64,
+    Component65,
+    Component66,
+    Component67,
+    Component68,
+    Component69,
+    Component70,
+    Component71,
+    Component72,
+    Component73,
+    Component74,
+    Component75,
+    Component76,
+    Component77,
+    Component78,
+    Component79,
+    Component80,
+    Component81,
+    Component82,
+    Component83,
+    Component84,
+    Component85,
+    Component86,
+    Component87,
+    Component88,
+    Component89,
+    Component90,
+    Component91,
+    Component92,
+    Component93,
+    Component94,
+    Component95,
+    Component96,
+    Component97,
+    Component98,
+    Component99,
+    Component100,
+    Component101,
+    Component102,
+    Component103,
+    Component104,
+    Component105,
+    Component106,
+    Component107,
+    Component108,
+    Component109,
+    Component110,
+    Component111,
+    Component112,
+    Component113,
+    Component114,
+    Component115,
+    Component116,
+    Component117,
+    Component118,
+    Component119,
+};
+static_assert(static_cast<u64>(Patch::Component119) == 127);
+
+[[nodiscard]] bool IsGeneric(Patch patch) noexcept;
+
+[[nodiscard]] u32 GenericPatchIndex(Patch patch);
+
+[[nodiscard]] u32 GenericPatchElement(Patch patch);
+
+} // namespace Shader::IR
diff --git a/src/shader_recompiler/frontend/ir/type.h b/src/shader_recompiler/frontend/ir/type.h
index 9a32ca1e8..8b3b33852 100644
--- a/src/shader_recompiler/frontend/ir/type.h
+++ b/src/shader_recompiler/frontend/ir/type.h
@@ -20,26 +20,27 @@ enum class Type {
     Reg = 1 << 2,
     Pred = 1 << 3,
     Attribute = 1 << 4,
-    U1 = 1 << 5,
-    U8 = 1 << 6,
-    U16 = 1 << 7,
-    U32 = 1 << 8,
-    U64 = 1 << 9,
-    F16 = 1 << 10,
-    F32 = 1 << 11,
-    F64 = 1 << 12,
-    U32x2 = 1 << 13,
-    U32x3 = 1 << 14,
-    U32x4 = 1 << 15,
-    F16x2 = 1 << 16,
-    F16x3 = 1 << 17,
-    F16x4 = 1 << 18,
-    F32x2 = 1 << 19,
-    F32x3 = 1 << 20,
-    F32x4 = 1 << 21,
-    F64x2 = 1 << 22,
-    F64x3 = 1 << 23,
-    F64x4 = 1 << 24,
+    Patch = 1 << 5,
+    U1 = 1 << 6,
+    U8 = 1 << 7,
+    U16 = 1 << 8,
+    U32 = 1 << 9,
+    U64 = 1 << 10,
+    F16 = 1 << 11,
+    F32 = 1 << 12,
+    F64 = 1 << 13,
+    U32x2 = 1 << 14,
+    U32x3 = 1 << 15,
+    U32x4 = 1 << 16,
+    F16x2 = 1 << 17,
+    F16x3 = 1 << 18,
+    F16x4 = 1 << 19,
+    F32x2 = 1 << 20,
+    F32x3 = 1 << 21,
+    F32x4 = 1 << 22,
+    F64x2 = 1 << 23,
+    F64x3 = 1 << 24,
+    F64x4 = 1 << 25,
 };
 DECLARE_ENUM_FLAG_OPERATORS(Type)
 
diff --git a/src/shader_recompiler/frontend/ir/value.cpp b/src/shader_recompiler/frontend/ir/value.cpp
index 1e7ffb86d..bf5f8c0c2 100644
--- a/src/shader_recompiler/frontend/ir/value.cpp
+++ b/src/shader_recompiler/frontend/ir/value.cpp
@@ -18,6 +18,8 @@ Value::Value(IR::Pred value) noexcept : type{Type::Pred}, pred{value} {}
 
 Value::Value(IR::Attribute value) noexcept : type{Type::Attribute}, attribute{value} {}
 
+Value::Value(IR::Patch value) noexcept : type{Type::Patch}, patch{value} {}
+
 Value::Value(bool value) noexcept : type{Type::U1}, imm_u1{value} {}
 
 Value::Value(u8 value) noexcept : type{Type::U8}, imm_u8{value} {}
@@ -109,6 +111,11 @@ IR::Attribute Value::Attribute() const {
     return attribute;
 }
 
+IR::Patch Value::Patch() const {
+    ValidateAccess(Type::Patch);
+    return patch;
+}
+
 bool Value::U1() const {
     if (IsIdentity()) {
         return inst->Arg(0).U1();
@@ -182,6 +189,8 @@ bool Value::operator==(const Value& other) const {
         return pred == other.pred;
     case Type::Attribute:
         return attribute == other.attribute;
+    case Type::Patch:
+        return patch == other.patch;
     case Type::U1:
         return imm_u1 == other.imm_u1;
     case Type::U8:
diff --git a/src/shader_recompiler/frontend/ir/value.h b/src/shader_recompiler/frontend/ir/value.h
index a0962863d..303745563 100644
--- a/src/shader_recompiler/frontend/ir/value.h
+++ b/src/shader_recompiler/frontend/ir/value.h
@@ -9,6 +9,7 @@
 #include "shader_recompiler/frontend/ir/attribute.h"
 #include "shader_recompiler/frontend/ir/pred.h"
 #include "shader_recompiler/frontend/ir/reg.h"
+#include "shader_recompiler/frontend/ir/patch.h"
 #include "shader_recompiler/frontend/ir/type.h"
 
 namespace Shader::IR {
@@ -24,6 +25,7 @@ public:
     explicit Value(IR::Reg value) noexcept;
     explicit Value(IR::Pred value) noexcept;
     explicit Value(IR::Attribute value) noexcept;
+    explicit Value(IR::Patch value) noexcept;
     explicit Value(bool value) noexcept;
     explicit Value(u8 value) noexcept;
     explicit Value(u16 value) noexcept;
@@ -46,6 +48,7 @@ public:
     [[nodiscard]] IR::Reg Reg() const;
     [[nodiscard]] IR::Pred Pred() const;
     [[nodiscard]] IR::Attribute Attribute() const;
+    [[nodiscard]] IR::Patch Patch() const;
     [[nodiscard]] bool U1() const;
     [[nodiscard]] u8 U8() const;
     [[nodiscard]] u16 U16() const;
@@ -67,6 +70,7 @@ private:
         IR::Reg reg;
         IR::Pred pred;
         IR::Attribute attribute;
+        IR::Patch patch;
         bool imm_u1;
         u8 imm_u8;
         u16 imm_u16;
diff --git a/src/shader_recompiler/frontend/maxwell/program.cpp b/src/shader_recompiler/frontend/maxwell/program.cpp
index ab67446c8..20a1d61cc 100644
--- a/src/shader_recompiler/frontend/maxwell/program.cpp
+++ b/src/shader_recompiler/frontend/maxwell/program.cpp
@@ -70,6 +70,11 @@ IR::Program TranslateProgram(ObjectPool<IR::Inst>& inst_pool, ObjectPool<IR::Blo
     program.stage = env.ShaderStage();
     program.local_memory_size = env.LocalMemorySize();
     switch (program.stage) {
+    case Stage::TessellationControl: {
+        const ProgramHeader& sph{env.SPH()};
+        program.invocations = sph.common2.threads_per_input_primitive;
+        break;
+    }
     case Stage::Geometry: {
         const ProgramHeader& sph{env.SPH()};
         program.output_topology = sph.common3.output_topology;
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/load_store_attribute.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/load_store_attribute.cpp
index eb6a80de2..7d7dcc3cb 100644
--- a/src/shader_recompiler/frontend/maxwell/translate/impl/load_store_attribute.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/load_store_attribute.cpp
@@ -70,12 +70,6 @@ void TranslatorVisitor::ALD(u64 insn) {
         BitField<47, 2, Size> size;
     } const ald{insn};
 
-    if (ald.o != 0) {
-        throw NotImplementedException("O");
-    }
-    if (ald.patch != 0) {
-        throw NotImplementedException("P");
-    }
     const u64 offset{ald.absolute_offset.Value()};
     if (offset % 4 != 0) {
         throw NotImplementedException("Unaligned absolute offset {}", offset);
@@ -84,11 +78,19 @@ void TranslatorVisitor::ALD(u64 insn) {
     const u32 num_elements{NumElements(ald.size)};
     if (ald.index_reg == IR::Reg::RZ) {
         for (u32 element = 0; element < num_elements; ++element) {
-            const IR::Attribute attr{offset / 4 + element};
-            F(ald.dest_reg + element, ir.GetAttribute(attr, vertex));
+            if (ald.patch != 0) {
+                const IR::Patch patch{offset / 4 + element};
+                F(ald.dest_reg + element, ir.GetPatch(patch));
+            } else {
+                const IR::Attribute attr{offset / 4 + element};
+                F(ald.dest_reg + element, ir.GetAttribute(attr, vertex));
+            }
         }
         return;
     }
+    if (ald.patch != 0) {
+        throw NotImplementedException("Indirect patch read");
+    }
     HandleIndexed(*this, ald.index_reg, num_elements, [&](u32 element, IR::U32 final_offset) {
         F(ald.dest_reg + element, ir.GetAttributeIndexed(final_offset, vertex));
     });
@@ -106,9 +108,6 @@ void TranslatorVisitor::AST(u64 insn) {
         BitField<47, 2, Size> size;
     } const ast{insn};
 
-    if (ast.patch != 0) {
-        throw NotImplementedException("P");
-    }
     if (ast.index_reg != IR::Reg::RZ) {
         throw NotImplementedException("Indexed store");
     }
@@ -120,11 +119,19 @@ void TranslatorVisitor::AST(u64 insn) {
     const u32 num_elements{NumElements(ast.size)};
     if (ast.index_reg == IR::Reg::RZ) {
         for (u32 element = 0; element < num_elements; ++element) {
-            const IR::Attribute attr{offset / 4 + element};
-            ir.SetAttribute(attr, F(ast.src_reg + element), vertex);
+            if (ast.patch != 0) {
+                const IR::Patch patch{offset / 4 + element};
+                ir.SetPatch(patch, F(ast.src_reg + element));
+            } else {
+                const IR::Attribute attr{offset / 4 + element};
+                ir.SetAttribute(attr, F(ast.src_reg + element), vertex);
+            }
         }
         return;
     }
+    if (ast.patch != 0) {
+        throw NotImplementedException("Indexed tessellation patch store");
+    }
     HandleIndexed(*this, ast.index_reg, num_elements, [&](u32 element, IR::U32 final_offset) {
         ir.SetAttributeIndexed(final_offset, F(ast.src_reg + element), vertex);
     });
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/move_special_register.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/move_special_register.cpp
index bc822d585..660b84c20 100644
--- a/src/shader_recompiler/frontend/maxwell/translate/impl/move_special_register.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/move_special_register.cpp
@@ -113,6 +113,8 @@ enum class SpecialRegister : u64 {
 
 [[nodiscard]] IR::U32 Read(IR::IREmitter& ir, SpecialRegister special_register) {
     switch (special_register) {
+    case SpecialRegister::SR_INVOCATION_ID:
+        return ir.InvocationId();
     case SpecialRegister::SR_THREAD_KILL:
         return IR::U32{ir.Select(ir.IsHelperInvocation(), ir.Imm32(-1), ir.Imm32(0))};
     case SpecialRegister::SR_INVOCATION_INFO:
diff --git a/src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp b/src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
index 617ec05ce..aadcf7999 100644
--- a/src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
+++ b/src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
@@ -53,6 +53,10 @@ void GetAttribute(Info& info, IR::Attribute attribute) {
     case IR::Attribute::PointSpriteT:
         info.loads_point_coord = true;
         break;
+    case IR::Attribute::TessellationEvaluationPointU:
+    case IR::Attribute::TessellationEvaluationPointV:
+        info.loads_tess_coord = true;
+        break;
     default:
         throw NotImplementedException("Get attribute {}", attribute);
     }
@@ -94,6 +98,34 @@ void SetAttribute(Info& info, IR::Attribute attribute) {
     }
 }
 
+void GetPatch(Info& info, IR::Patch patch) {
+    if (!IR::IsGeneric(patch)) {
+        throw NotImplementedException("Reading non-generic patch {}", patch);
+    }
+    info.uses_patches.at(IR::GenericPatchIndex(patch)) = true;
+}
+
+void SetPatch(Info& info, IR::Patch patch) {
+    if (IR::IsGeneric(patch)) {
+        info.uses_patches.at(IR::GenericPatchIndex(patch)) = true;
+        return;
+    }
+    switch (patch) {
+    case IR::Patch::TessellationLodLeft:
+    case IR::Patch::TessellationLodTop:
+    case IR::Patch::TessellationLodRight:
+    case IR::Patch::TessellationLodBottom:
+        info.stores_tess_level_outer = true;
+        break;
+    case IR::Patch::TessellationLodInteriorU:
+    case IR::Patch::TessellationLodInteriorV:
+        info.stores_tess_level_inner = true;
+        break;
+    default:
+        throw NotImplementedException("Set patch {}", patch);
+    }
+}
+
 void VisitUsages(Info& info, IR::Inst& inst) {
     switch (inst.GetOpcode()) {
     case IR::Opcode::CompositeConstructF16x2:
@@ -350,6 +382,12 @@ void VisitUsages(Info& info, IR::Inst& inst) {
     case IR::Opcode::SetAttribute:
         SetAttribute(info, inst.Arg(0).Attribute());
         break;
+    case IR::Opcode::GetPatch:
+        GetPatch(info, inst.Arg(0).Patch());
+        break;
+    case IR::Opcode::SetPatch:
+        SetPatch(info, inst.Arg(0).Patch());
+        break;
     case IR::Opcode::GetAttributeIndexed:
         info.loads_indexed_attributes = true;
         break;
@@ -368,6 +406,9 @@ void VisitUsages(Info& info, IR::Inst& inst) {
     case IR::Opcode::LocalInvocationId:
         info.uses_local_invocation_id = true;
         break;
+    case IR::Opcode::InvocationId:
+        info.uses_invocation_id = true;
+        break;
     case IR::Opcode::IsHelperInvocation:
         info.uses_is_helper_invocation = true;
         break;
diff --git a/src/shader_recompiler/profile.h b/src/shader_recompiler/profile.h
index c26017d75..3a04f075e 100644
--- a/src/shader_recompiler/profile.h
+++ b/src/shader_recompiler/profile.h
@@ -38,6 +38,18 @@ enum class CompareFunction {
     Always,
 };
 
+enum class TessPrimitive {
+    Isolines,
+    Triangles,
+    Quads,
+};
+
+enum class TessSpacing {
+    Equal,
+    FractionalOdd,
+    FractionalEven,
+};
+
 struct TransformFeedbackVarying {
     u32 buffer{};
     u32 stride{};
@@ -74,6 +86,10 @@ struct Profile {
     bool convert_depth_mode{};
     bool force_early_z{};
 
+    TessPrimitive tess_primitive{};
+    TessSpacing tess_spacing{};
+    bool tess_clockwise{};
+
     InputTopology input_topology{};
 
     std::optional<float> fixed_state_point_size;
diff --git a/src/shader_recompiler/shader_info.h b/src/shader_recompiler/shader_info.h
index 336c6131a..4dbf9ed12 100644
--- a/src/shader_recompiler/shader_info.h
+++ b/src/shader_recompiler/shader_info.h
@@ -101,8 +101,10 @@ struct Info {
 
     bool uses_workgroup_id{};
     bool uses_local_invocation_id{};
+    bool uses_invocation_id{};
     bool uses_is_helper_invocation{};
     bool uses_subgroup_invocation_id{};
+    std::array<bool, 30> uses_patches{};
 
     std::array<InputVarying, 32> input_generics{};
     bool loads_position{};
@@ -110,6 +112,7 @@ struct Info {
     bool loads_vertex_id{};
     bool loads_front_face{};
     bool loads_point_coord{};
+    bool loads_tess_coord{};
     bool loads_indexed_attributes{};
 
     std::array<bool, 8> stores_frag_color{};
@@ -120,6 +123,8 @@ struct Info {
     bool stores_clip_distance{};
     bool stores_layer{};
     bool stores_viewport_index{};
+    bool stores_tess_level_outer{};
+    bool stores_tess_level_inner{};
     bool stores_indexed_attributes{};
 
     bool uses_fp16{};
diff --git a/src/video_core/renderer_vulkan/maxwell_to_vk.cpp b/src/video_core/renderer_vulkan/maxwell_to_vk.cpp
index dc4ff0da2..8f0b0b8ec 100644
--- a/src/video_core/renderer_vulkan/maxwell_to_vk.cpp
+++ b/src/video_core/renderer_vulkan/maxwell_to_vk.cpp
@@ -685,6 +685,19 @@ VkCullModeFlagBits CullFace(Maxwell::CullFace cull_face) {
     return {};
 }
 
+VkPolygonMode PolygonMode(Maxwell::PolygonMode polygon_mode) {
+    switch (polygon_mode) {
+    case Maxwell::PolygonMode::Point:
+        return VK_POLYGON_MODE_POINT;
+    case Maxwell::PolygonMode::Line:
+        return VK_POLYGON_MODE_LINE;
+    case Maxwell::PolygonMode::Fill:
+        return VK_POLYGON_MODE_FILL;
+    }
+    UNIMPLEMENTED_MSG("Unimplemented polygon mode={}", polygon_mode);
+    return {};
+}
+
 VkComponentSwizzle SwizzleSource(Tegra::Texture::SwizzleSource swizzle) {
     switch (swizzle) {
     case Tegra::Texture::SwizzleSource::Zero:
diff --git a/src/video_core/renderer_vulkan/maxwell_to_vk.h b/src/video_core/renderer_vulkan/maxwell_to_vk.h
index 9f78e15b6..50a599c11 100644
--- a/src/video_core/renderer_vulkan/maxwell_to_vk.h
+++ b/src/video_core/renderer_vulkan/maxwell_to_vk.h
@@ -65,6 +65,8 @@ VkFrontFace FrontFace(Maxwell::FrontFace front_face);
 
 VkCullModeFlagBits CullFace(Maxwell::CullFace cull_face);
 
+VkPolygonMode PolygonMode(Maxwell::PolygonMode polygon_mode);
+
 VkComponentSwizzle SwizzleSource(Tegra::Texture::SwizzleSource swizzle);
 
 VkViewportCoordinateSwizzleNV ViewportSwizzle(Maxwell::ViewportSwizzle swizzle);
diff --git a/src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp b/src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp
index 84720a6f9..d5e9dae0f 100644
--- a/src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp
+++ b/src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp
@@ -355,7 +355,8 @@ void GraphicsPipeline::MakePipeline(const Device& device, VkRenderPass render_pa
             static_cast<VkBool32>(state.depth_clamp_disabled == 0 ? VK_TRUE : VK_FALSE),
         .rasterizerDiscardEnable =
             static_cast<VkBool32>(state.rasterize_enable == 0 ? VK_TRUE : VK_FALSE),
-        .polygonMode = VK_POLYGON_MODE_FILL,
+        .polygonMode =
+            MaxwellToVK::PolygonMode(FixedPipelineState::UnpackPolygonMode(state.polygon_mode)),
         .cullMode = static_cast<VkCullModeFlags>(
             dynamic.cull_enable ? MaxwellToVK::CullFace(dynamic.CullFace()) : VK_CULL_MODE_NONE),
         .frontFace = MaxwellToVK::FrontFace(dynamic.FrontFace()),
diff --git a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
index ee22255bf..0bccc640a 100644
--- a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
+++ b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
@@ -1040,6 +1040,36 @@ Shader::Profile PipelineCache::MakeProfile(const GraphicsPipelineCacheKey& key,
         std::ranges::transform(key.state.attributes, profile.generic_input_types.begin(),
                                &CastAttributeType);
         break;
+    case Shader::Stage::TessellationEval:
+        // We have to flip tessellation clockwise for some reason...
+        profile.tess_clockwise = key.state.tessellation_clockwise == 0;
+        profile.tess_primitive = [&key] {
+            const u32 raw{key.state.tessellation_primitive.Value()};
+            switch (static_cast<Maxwell::TessellationPrimitive>(raw)) {
+            case Maxwell::TessellationPrimitive::Isolines:
+                return Shader::TessPrimitive::Isolines;
+            case Maxwell::TessellationPrimitive::Triangles:
+                return Shader::TessPrimitive::Triangles;
+            case Maxwell::TessellationPrimitive::Quads:
+                return Shader::TessPrimitive::Quads;
+            }
+            UNREACHABLE();
+            return Shader::TessPrimitive::Triangles;
+        }();
+        profile.tess_spacing = [&] {
+            const u32 raw{key.state.tessellation_spacing};
+            switch (static_cast<Maxwell::TessellationSpacing>(raw)) {
+            case Maxwell::TessellationSpacing::Equal:
+                return Shader::TessSpacing::Equal;
+            case Maxwell::TessellationSpacing::FractionalOdd:
+                return Shader::TessSpacing::FractionalOdd;
+            case Maxwell::TessellationSpacing::FractionalEven:
+                return Shader::TessSpacing::FractionalEven;
+            }
+            UNREACHABLE();
+            return Shader::TessSpacing::Equal;
+        }();
+        break;
     case Shader::Stage::Geometry:
         if (program.output_topology == Shader::OutputTopology::PointList) {
             profile.fixed_state_point_size = point_size;
diff --git a/src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp b/src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp
index 0412b5234..555b12ed7 100644
--- a/src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp
+++ b/src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp
@@ -91,7 +91,7 @@ StagingBufferPool::StagingBufferPool(const Device& device_, MemoryAllocator& mem
         .flags = 0,
         .size = STREAM_BUFFER_SIZE,
         .usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT |
-                 VK_BUFFER_USAGE_INDEX_BUFFER_BIT,
+                 VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_STORAGE_BUFFER_BIT,
         .sharingMode = VK_SHARING_MODE_EXCLUSIVE,
         .queueFamilyIndexCount = 0,
         .pQueueFamilyIndices = nullptr,
diff --git a/src/video_core/vulkan_common/vulkan_device.cpp b/src/video_core/vulkan_common/vulkan_device.cpp
index 87cfe6312..f0de19ba1 100644
--- a/src/video_core/vulkan_common/vulkan_device.cpp
+++ b/src/video_core/vulkan_common/vulkan_device.cpp
@@ -225,7 +225,7 @@ Device::Device(VkInstance instance_, vk::PhysicalDevice physical_, VkSurfaceKHR
             .drawIndirectFirstInstance = false,
             .depthClamp = true,
             .depthBiasClamp = true,
-            .fillModeNonSolid = false,
+            .fillModeNonSolid = true,
             .depthBounds = false,
             .wideLines = false,
             .largePoints = true,
@@ -670,6 +670,7 @@ void Device::CheckSuitability(bool requires_swapchain) const {
         std::make_pair(features.largePoints, "largePoints"),
         std::make_pair(features.multiViewport, "multiViewport"),
         std::make_pair(features.depthBiasClamp, "depthBiasClamp"),
+        std::make_pair(features.fillModeNonSolid, "fillModeNonSolid"),
         std::make_pair(features.geometryShader, "geometryShader"),
         std::make_pair(features.tessellationShader, "tessellationShader"),
         std::make_pair(features.occlusionQueryPrecise, "occlusionQueryPrecise"),