[codex] add Gemma4 turbo4 V-cache Vulkan smoke

.github/workflows/release.yml

@@ -1234,6 +1234,9 @@ jobs:
           path: llama-${{ steps.tag.outputs.name }}-bin-${{ matrix.chip_type }}-openEuler-${{ matrix.arch }}${{ matrix.use_acl_graph == 'on' && '-aclgraph' || '' }}.tar.gz
           name: llama-bin-${{ matrix.chip_type }}-openEuler-${{ matrix.arch }}${{ matrix.use_acl_graph == 'on' && '-aclgraph' || '' }}.tar.gz
 
+  ui-build:
+    uses: ./.github/workflows/ui-build.yml
+
   release:
     if: ${{ ( github.event_name == 'push' && github.ref == 'refs/heads/master' ) || github.event.inputs.create_release == 'true' }}
 
@@ -1259,6 +1262,7 @@ jobs:
       - macOS-cpu
       - ios-xcode-build
       - openEuler-cann
+      - ui-build
 
     outputs:
       tag_name: ${{ steps.tag.outputs.name }}
@@ -1318,6 +1322,18 @@ jobs:
           mv -v artifact/*.zip release
           mv -v artifact/*.tar.gz release
 
+      - name: Download UI build
+        id: download_ui
+        uses: actions/download-artifact@v7
+        with:
+          name: ui-build
+          path: ./ui-dist
+
+      - name: Package UI
+        id: package_ui
+        run: |
+          tar -czvf release/llama-${{ steps.tag.outputs.name }}-ui.tar.gz --transform "s,^\.,llama-${{ steps.tag.outputs.name }}," -C ./ui-dist .
+
       - name: Create release
         id: create_release
         uses: ggml-org/action-create-release@v1
@@ -1367,6 +1383,9 @@ jobs:
             - [openEuler aarch64 (310p)](https://github.com/ggml-org/llama.cpp/releases/download/${{ steps.tag.outputs.name }}/llama-${{ steps.tag.outputs.name }}-bin-310p-openEuler-aarch64.tar.gz)
             - [openEuler aarch64 (910b, ACL Graph)](https://github.com/ggml-org/llama.cpp/releases/download/${{ steps.tag.outputs.name }}/llama-${{ steps.tag.outputs.name }}-bin-910b-openEuler-aarch64-aclgraph.tar.gz)
 
+            **UI:**
+            - [UI](https://github.com/ggml-org/llama.cpp/releases/download/${{ steps.tag.outputs.name }}/llama-${{ steps.tag.outputs.name }}-ui.tar.gz)
+
       - name: Upload release
         id: upload_release
         uses: actions/github-script@v8

.github/workflows/server.yml

@@ -54,8 +54,13 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  ui-build:
+    name: Build Web UI
+    uses: ./.github/workflows/ui-build.yml
+
   server:
     runs-on: ubuntu-latest
+    needs: ui-build
 
     name: server (${{ matrix.wf_name }})
     strategy:
@@ -93,12 +98,11 @@ jobs:
           fetch-depth: 0
           ref: ${{ github.event.inputs.sha || github.event.pull_request.head.sha || github.sha || github.head_ref || github.ref_name }}
 
-      - name: Setup Node.js
-        uses: actions/setup-node@v6
+      - name: Download built UI
+        uses: actions/download-artifact@v7
         with:
-          node-version: "24"
-          cache: "npm"
-          cache-dependency-path: "tools/ui/package-lock.json"
+          name: ui-build
+          path: tools/ui/dist
 
       - name: Build
         id: cmake_build

.github/workflows/ui-build.yml

@@ -31,7 +31,7 @@ jobs:
 
       - name: Generate checksums
         run: |
-          cd build/tools/ui/dist
+          cd tools/ui/dist
           for f in *; do
             sha256sum "$f" | awk '{print $1, $2}' >> checksums.txt
           done
@@ -40,5 +40,5 @@ jobs:
         uses: actions/upload-artifact@v6
         with:
           name: ui-build
-          path: build/tools/ui/dist/
+          path: tools/ui/dist/
           retention-days: 1

.github/workflows/ui-publish.yml

@@ -38,7 +38,7 @@ jobs:
         uses: actions/download-artifact@v7
         with:
           name: ui-build
-          path: build/tools/ui/dist/
+          path: tools/ui/dist/
 
       - name: Install Hugging Face Hub CLI
         run: pip install -U huggingface_hub
@@ -49,12 +49,12 @@ jobs:
       - name: Sync built files to Hugging Face bucket (version tag)
         run: |
           # Upload the built files to the Hugging Face bucket under the release version
-          hf buckets sync build/tools/ui/dist hf://buckets/ggml-org/${{ env.HF_BUCKET_NAME }}/${{ inputs.version_tag }} --delete --quiet
+          hf buckets sync tools/ui/dist hf://buckets/ggml-org/${{ env.HF_BUCKET_NAME }}/${{ inputs.version_tag }} --delete --quiet
 
       - name: Sync built files to Hugging Face bucket (latest)
         run: |
           # Also upload to the 'latest' directory for fallback downloads
-          hf buckets sync build/tools/ui/dist hf://buckets/ggml-org/${{ env.HF_BUCKET_NAME }}/latest --delete --quiet
+          hf buckets sync tools/ui/dist hf://buckets/ggml-org/${{ env.HF_BUCKET_NAME }}/latest --delete --quiet
 
       - name: Verify upload
         run: |

CMakeLists.txt

@@ -112,16 +112,6 @@ option(LLAMA_BUILD_APP       "llama: build the unified binary"
 option(LLAMA_BUILD_UI        "llama: build the embedded Web UI for server"                                       ON)
 option(LLAMA_USE_PREBUILT_UI "llama: use prebuilt UI from HF Bucket when available (requires LLAMA_BUILD_UI=ON)" ON)
 
-# Backward compat: when old var is set but new one isn't, forward the value
-if(DEFINED LLAMA_BUILD_WEBUI)
-    set(LLAMA_BUILD_UI ${LLAMA_BUILD_WEBUI})
-    message(DEPRECATION "LLAMA_BUILD_WEBUI is deprecated, use LLAMA_BUILD_UI instead")
-endif()
-if(DEFINED LLAMA_USE_PREBUILT_WEBUI)
-    set(LLAMA_USE_PREBUILT_UI ${LLAMA_USE_PREBUILT_WEBUI})
-    message(DEPRECATION "LLAMA_USE_PREBUILT_WEBUI is deprecated, use LLAMA_USE_PREBUILT_UI instead")
-endif()
-
 option(LLAMA_TOOLS_INSTALL "llama: install tools" ${LLAMA_TOOLS_INSTALL_DEFAULT})
 option(LLAMA_TESTS_INSTALL "llama: install tests" ON)
 

common/common.h

@@ -617,11 +617,7 @@ struct common_params {
     std::map<std::string, std::string> default_template_kwargs;
 
     // UI configs
-#ifdef LLAMA_UI_DEFAULT_ENABLED
-    bool ui = LLAMA_UI_DEFAULT_ENABLED != 0;
-#else
-    bool ui = true; // default to enabled when not set
-#endif
+    bool ui = true;
 
     // Deprecated: use ui, ui_mcp_proxy, ui_config_json instead
     bool webui = ui;

docs/backend/snapdragon/CMakeUserPresets.json

@@ -33,8 +33,8 @@
         "name": "arm64-windows-snapdragon",
         "inherits": [ "base", "arm64-windows-llvm" ],
         "cacheVariables": {
-            "CMAKE_C_FLAGS":   "-march=armv8.7a+fp16 -fvectorize -ffp-model=fast -flto -D_GNU_SOURCE",
-            "CMAKE_CXX_FLAGS": "-march=armv8.7a+fp16 -fvectorize -ffp-model=fast -flto -D_GNU_SOURCE",
+            "CMAKE_C_FLAGS":   "-march=armv8.7a+fp16+dotprod+i8mm -fvectorize -ffp-model=fast -flto -D_GNU_SOURCE",
+            "CMAKE_CXX_FLAGS": "-march=armv8.7a+fp16+dotprod+i8mm -fvectorize -ffp-model=fast -flto -D_GNU_SOURCE",
             "CMAKE_C_FLAGS_RELEASE":          "-O3 -DNDEBUG",
             "CMAKE_CXX_FLAGS_RELEASE":        "-O3 -DNDEBUG",
             "CMAKE_C_FLAGS_RELWITHDEBINFO":   "-O3 -DNDEBUG -g",

docs/backend/snapdragon/README.md

@@ -24,7 +24,7 @@ Native Windows 11 arm64 builds has the following tools dependencies:
   - UCRT and Driver Kit
 - LLVM core libraries and Clang compiler (winget)
 - CMake, Git, Python (winget)
-- Hexagon SDK Community Edition 6.4 or later (see windows.md)
+- Hexagon SDK Community Edition 6.6 or later (see windows.md)
 - OpenCL SDK 2.3 or later (see windows.md)
 
 Note: The rest of the **Windows** build process assumes that you're running natively in Powershell.
@@ -45,7 +45,7 @@ Preset CMake variables:
   GGML_HEXAGON="ON"
   GGML_OPENCL="ON"
   GGML_OPENMP="OFF"
-  HEXAGON_SDK_ROOT="/opt/hexagon/6.4.0.2"
+  HEXAGON_SDK_ROOT="/opt/hexagon/6.6.0.0"
 ...
 -- Including OpenCL backend
 -- Including Hexagon backend

docs/backend/snapdragon/windows.md

@@ -28,15 +28,15 @@ c:\Qualcomm\OpenCL_SDK\2.3.2
 
 Either use the trimmed down version (optimized for CI) from
 
-    https://github.com/snapdragon-toolchain/hexagon-sdk/releases/download/v6.4.0.2/hexagon-sdk-v6.4.0.2-arm64-wos.tar.xz
+    https://github.com/snapdragon-toolchain/hexagon-sdk/releases/download/v6.6.0.0/hexagon-sdk-v6.6.0.0-arm64-wos.tar.xz
 
 Or download the complete official version from
 
-    https://softwarecenter.qualcomm.com/catalog/item/Hexagon_SDK?version=6.4.0.2
+    https://softwarecenter.qualcomm.com/catalog/item/Hexagon_SDK?version=6.6.0.0
 
 Unzip/untar the archive into
 ```
-c:\Qualcomm\Hexagon_SDK\6.4.0.2
+c:\Qualcomm\Hexagon_SDK\6.6.0.0
 ```
 
 ## Install the latest Adreno GPU driver
@@ -123,10 +123,10 @@ The overall Hexagon backend build procedure for Windows on Snapdragon is the sam
 However, additional settings are required for generating and signing HTP Ops libraries.
 ```
 > $env:OPENCL_SDK_ROOT="C:\Qualcomm\OpenCL_SDK\2.3.2"
-> $env:HEXAGON_SDK_ROOT="C:\Qualcomm\Hexagon_SDK\6.4.0.2"
-> $env:HEXAGON_TOOLS_ROOT="C:\Qualcomm\Hexagon_SDK\6.4.0.2\tools\HEXAGON_Tools\19.0.04"
+> $env:HEXAGON_SDK_ROOT="C:\Qualcomm\Hexagon_SDK\6.6.0.0"
+> $env:HEXAGON_TOOLS_ROOT="C:\Qualcomm\Hexagon_SDK\6.6.0.0\tools\HEXAGON_Tools\19.0.07"
 > $env:HEXAGON_HTP_CERT="c:\Users\MyUsers\Certs\ggml-htp-v1.pfx"
-> $env:WINDOWS_SDK_BIN="C:\Program Files (x86)\Windows Kits\10\bin\10.0.26100.0\arm64"
+> $env:WINDOWS_SDK_BIN="C:\Program Files (x86)\Windows Kits\10\bin\10.0.26100.0"
 
 > cmake --preset arm64-windows-snapdragon-release -B build-wos
 ...

examples/model-conversion/scripts/embedding/run-original-model.py

@@ -64,7 +64,7 @@ def load_model_and_tokenizer(model_path, use_sentence_transformers=False, device
         print("Using SentenceTransformer to apply all numbered layers")
         model = SentenceTransformer(model_path)
         tokenizer = model.tokenizer
-        config = model[0].auto_model.config
+        config = model[0].auto_model.config  # ty: ignore[unresolved-attribute]
     else:
         tokenizer = AutoTokenizer.from_pretrained(model_path)
         config = AutoConfig.from_pretrained(model_path, trust_remote_code=True)

ggml/src/ggml-hexagon/htp/hmx-flash-attn-ops.c

@@ -852,9 +852,10 @@ static void fa_softmax_thread(unsigned int n, unsigned int i, void * data) {
             v_s_rowmax1 = hvx_vec_reduce_max_f16(v_s_rowmax1);
 
             // Splat m_prev[r], m_prev[r+1] from the per-row accumulator.
-            // vror brings the target lane to lane 0, then extract + re-splat.
-            HVX_Vector v_m_prev0 = hvx_vec_splat_f16(hvx_vec_get_f16(Q6_V_vror_VR(m_prev_v, r_vec_off * 2)));
-            HVX_Vector v_m_prev1 = hvx_vec_splat_f16(hvx_vec_get_f16(Q6_V_vror_VR(m_prev_v, (r_vec_off + 1) * 2)));
+            // vror brings the target lane to lane 0, then vdelta replicates it
+            // across all lanes — stays in the vector domain (no store/reload).
+            HVX_Vector v_m_prev0 = hvx_vec_repl_f16(Q6_V_vror_VR(m_prev_v, r_vec_off * 2));
+            HVX_Vector v_m_prev1 = hvx_vec_repl_f16(Q6_V_vror_VR(m_prev_v, (r_vec_off + 1) * 2));
 
             // HVX max — both operands are splats, so result is splat of m_new.
             HVX_Vector v_dup_m0 = Q6_Vhf_vmax_VhfVhf(v_m_prev0, v_s_rowmax0);

requirements/requirements-convert_hf_to_gguf.txt

@@ -1,8 +1,8 @@
 -r ./requirements-convert_legacy_llama.txt
 --extra-index-url https://download.pytorch.org/whl/cpu
 
-## Embedding Gemma requires PyTorch 2.6.0 or later
-torch~=2.6.0; platform_machine != "s390x"
+## Embedding Gemma requires PyTorch 2.6.0 or later, bumped to 2.11.0 for compatibility
+torch==2.11.0; platform_machine != "s390x"
 
 # torch s390x packages can only be found from nightly builds
 --extra-index-url https://download.pytorch.org/whl/nightly

scripts/snapdragon/windows/setup-build.ps1

@@ -7,10 +7,10 @@ $ErrorActionPreference = "Stop"
 $BaseDir = "C:\Qualcomm"
 
 # SDK 1: Hexagon
-$HexagonUrl     = "https://github.com/snapdragon-toolchain/hexagon-sdk/releases/download/v6.4.0.2/hexagon-sdk-v6.4.0.2-arm64-wos.tar.xz"
+$HexagonUrl     = "https://github.com/snapdragon-toolchain/hexagon-sdk/releases/download/v6.6.0.0/hexagon-sdk-v6.6.0.0-arm64-wos.tar.xz"
 $HexagonParent  = Join-Path $BaseDir "Hexagon_SDK"
-$HexagonSdkVersion   = "6.4.0.2"
-$HexagonToolsVersion = "19.0.04"
+$HexagonSdkVersion   = "6.6.0.0"
+$HexagonToolsVersion = "19.0.07"
 $HexagonSdkTarget    = Join-Path $HexagonParent $HexagonSdkVersion
 $HexagonToolsTarget  = Join-Path $HexagonSdkTarget "\tools\HEXAGON_Tools\$HexagonToolsVersion"