feat: support Granite-Docling model #2109
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- Update vendor/llama.cpp submodule to commit be47fb92 (2026-01-01) - Bump version 0.3.16 -> 0.4.0 Critical fixes: - Remove phantom flash_attn field from llama_context_params (caused segfaults) - Add 3 missing params to llama_params_fit (margin, n_ctx_min, log_level) - Migrate flash_attn bool -> flash_attn_type enum (BREAKING CHANGE) - Add flash_attn_type to TYPE_CHECKING block - Fix test: use flash_attn_type instead of removed flash_attn field - FIX CRITICAL: kv_cache_seq_rm must preserve seq_id=-1 semantics (all sequences) * The wrapper was incorrectly converting -1 to 0, breaking context rewind * This caused 'discontinuity' errors on multi-turn conversations API changes: - flash_attn: bool field REMOVED from structs - flash_attn_type: int enum ADDED (AUTO=-1, DISABLED=0, ENABLED=1) - High-level API maintains backward compatibility via wrapper - Server default changed: flash_attn=False -> flash_attn=None (AUTO mode) New features: - 20+ new functions (memory API, state management, samplers, vocab queries) - 5 new enums (flash_attn_type, params_fit_status, model_meta_key, etc.) - 6 new struct fields across llama_model_params, llama_context_params, mtmd_context_params Deprecated removals: - 11 llama_kv_self_* functions (replaced by llama_memory_*) - llama_sampler_init_softmax - verbosity field from mtmd_context_params
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Applies on top of #2108 which has the necessary changes to MTMD.
This adds chat formats to support https://huggingface.co/ggml-org/granite-docling-258M-GGUF and its ancestor, https://huggingface.co/ggml-org/SmolVLM-256M-Instruct-GGUF (and various other SmolVLM models)
In order to use Granite-Docling effectively for table structure, equation and layout extraction, it is necessary to enable special tokens in the chat completion output, so this adds a
specialflag to all of the chat completion functions which matches what--specialdoes inllama-cli(this is enabled by default inllama-mtmd-cli)