github llama.cpp · 2d ago · inference

llama.cpp b11070 overhauls Hexagon buffer and DMA handling for 64-bit mappings

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The llama.cpp project released version b11070, featuring a significant overhaul of the Hexagon backend to support 64-bit memory mappings and extended buffer handling. This update enables proper DMA (Direct Memory Access) support for larger models and complex operations on Qualcomm Hexagon DSPs.

Enabled extended buffer mappings and 64-bit DMA via the `hex-dma64` module.
Expanded binary operations to support more DMA scenarios and updated SSM_CONV to use DMA with 64-bit support.
Increased the number of memory mappings (mmaps) to 64 to prevent eviction in larger models.
Rewrote softmax and GDN loops to utilize DMA, improving HVX register usage.
Added a secondary ring as a fallback for too-large DMA transactions.

The release includes binaries for macOS, Linux, Windows, Android, and openEuler across CPU, GPU (CUDA, Vulkan, ROCm), and NPU backends.

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