meta : handle host views ( #30217 )
meta : handle views of tensors allocated on the host
A view shares the memory of its view_src, so ggml-alloc never allocates a view in
the buffer of the split it lands in - the scheduler copies the source into the
split and the ops that use the view read that copy. The view node itself is a noop
and does not need a split of its own, but the meta backend asserted when one was
left inside a meta split:
ggml_backend_meta_get_split_state() dereferenced tensor->buffer->context
the graph rebuild mapped every node with ggml_backend_meta_buffer_simple_tensor()
Accept such nodes when they are views of host tensors, which also generalizes the
previous s_copy_main workaround. This fixes the assert hit by KV cache views when
using --split-mode tensor with partial offload.
Assisted-by: pi:llama.cpp/Qwen3.8-Flash-Next
archs : re-enable sm tensor for K2 Horizon
cont : add TODO and reference
Website:
https://llama.app
Attestations:
https://github.com/ggml-org/llama.cpp/attestations/54357448
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