DeepSeek-V4: FP4 CSA indexer (gfx950)#1581

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jun/fp4_indexer

Commits on Jun 30, 2026

feat(deepseek_v4): Add fp4 indexer
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feat(deepseek_v4): gate FP4 indexer behind --enable-deepseek-v4-fp4-indexer

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claude
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Commits on Jul 1, 2026

perf(deepseek_v4): write FP4 decode cta_info via fused single-kernel schedule

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claude
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Commits on Jul 15, 2026

fix(dsv4): HCA paged-gather must account for k2_hca entries per block

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claude
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