Files
Max KrasnyanskyandGitHub b2dd28a3b6 hexagon: L2 cache handling rework (dirty bit tracking with lazy flushing) and more MUL_MAT updates (#25762)
* hex-mm: fix artificial limit in the solver that restricted number of act-prep threads

* hex-mm: fix warning

* hex-prof: do not apply --top to the timeline report

* hmx-mm: add suport for tiled act-processing to better distribute hvx work

* hex-l2: add tracing for l2flush events

* workqueue: redo the legacy workpool api to match hmx-queue and dma-queue

* hmx-mm: fix f32 activation buffer alignmnet for nhvx=5,6,7

* hex-work: minor cleanup for work-queue apis

* hex-work: further cleanup of the work-queue api

* hex-l2: optimize l2flushes at the opbatch level

* hex-work: remove unused mask

* hex-work: no need to drop hvx ctx in the work-queue

* hex-work: add explicit wakeup/suspend and make threads spin

* hex-bufs: mark any non-weight tensor as compute

* hex-dma: dma-queue support for alias queues and cached dma

* hex-l2: track tensor aliases and delay or skip flushes as much as possible

* hex-l2: simplify tensor alias handling

* hex-l2: handle overlapping views as a circular list of aliases

* hex-tens: add flags helper

* hex-l2: add helper for marking tensors clearn/dirty

* hex-l2: mark binary and rope outputs as l2-clean and keep the rest as is for now

* hex-l2: proper support for handling all tensor overlap scenarios

* hex-trace: instrument matmul init code and cleanup trace checks

* hex-thread: introduce dedicated main thread with explicit stack and priority

* hex-l2: track dirty state as bitmap and introduce threaded flush

* hex-trace: remove redundant checks for ctx != null

* hex-l2: allocate entire context as one buffer and l2fetch it after big flushes

* hex-l2: disable tensor clearing in binary and rope for now seems to cause issues with fusion

* hmx-mm: update act proc to use fastdivs and fix DMA overflow

* hmx-mm: make MUL_MAT_ID kernels robust to multi-chunk cases (start_row>0)

* hex-queue: remove obsolete queue interfaces and flush hmx-queue at the end of the op-batch

* hex-queue: dont use early wakeup for small op-batches

* hex-tensors: properly cap max_tensors in op-batches and dirty_map

* hex-l2: make sure threaded l2flush does proper rounding

* hex-l2: factor out htp_tensor_flush for reuse (if needed)

* hex-l2: optimize tensor flushes by coalescing flush-all

* hex-l2: optimize multi-threaded flush

* hex-drv: futureproof version checks

* hexagon: fix errors and warnings on windows

* hex-main: update main thread to only use dspqueue_read, dspqueue_peek is not available on some platforms

* hex-main: add fallback mode for dspqueue with callbacks

* hex-main: introduce fallback mode for using dspqueue callbacks for full op processing

* hex-main: remove early wakeup, not helping and seems to cause some errors with certain batch sizes

* hex-l2: make sure to use invalidate version of flushall

* hex-l2: dont try to trace early l2flush at the start of op-batch

* hex-main: remove offset_ctx that must be zero anyway

* hex-hmx: fix hmx_queue_depth to use idx_write - idx_read

* hex-hmx: use atomic_load for idx_read/write

* hex-main: add static assert to make sure n_threads are aligned
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