hexagon: MUL_MAT and MUL_MAT_ID rework : 32x32 tiled weight repack, kernel-params, cached graphs (#24954)

* hex-mm: new weight layout and fusion updates

* hvx-mm: unroll the new tiled vec_dots to optimize hvx register util

* hex-mm: optimize dyn.quant format for q8_0 and q8_1 to reduce overhead in vec_dots.

* hvx-mm: parallel quantizer per block for large rows

* hvx-mm: simplify and futher optimize dyn.quant and vec_dots

* hvx-mm: keep intermediate per tile accumulators in fp16

* hmx-mm: optimize weight dequant by aligning the repacked tiles with the DMA

* hmx-mm: remove qweight scratch and just use vtcm_weight

* hmx-mm: remove all unused and obsolete code

* hmx-mm: the new tiled repack format is here to stay -- rename all x4x2 to _tiled

* hmx-mm: improve activation processing with dma prefetch

* hex-mm: fix hmx/hvx fallback logic and MUL_MAT_ID allocation (unbreaks OLMoE)

* hex-mm: align the weight tiles with dma just like we did in hmx-mm

* hex-mm: factor out common mm bits into htp/matmul-ops.h

* hex-mm: start moving mm kernel selection to the host

* hex-mm: move all of the matmul param compute into the host

* hmx-mm: restore pipelined mode

* hmx-mm: unroll the dequant functions to optimize register usage

* hmx-mm: further improve activation process

* hex-mm: use vtcm_seq_alloc for all vtcm allocations and define more common functions

* hex-mm: improve mm optimizer to acount for number of activation threads

* hex-mm: fix matmul-id kernel params selection (unbreaks OLMoE and LFM)

* hexagon: remove support for arch < v73 since HMX is now required for most use-cases

* hex-mm: cleanup naming for consistency

* hex-mm: make sure matmul fusion accounts for vtcm allocation

* hex-mm: minor cleanup for kernel_params definition

* hex-mm: replace hardcoded limits with proper checks for vtcm requirements

* hex-mm: add support for non-tiled mm as a fallback option and factor out hvx kernels into separate header

* hex-mm: remove unused functions

* hex-mm: add shorthand for MM_SELECT in run-tool script

* hvx-mm: factor out hvx/hmx microkernels and unify matmul entry and dispatch

* hex-mm: further cleanup matmul fallback path

* hex-mm: refactor matmul entry point and dispatch a bit further

* hexagon: update cmake build to enable hmx for everything

* hex-ops: optimize kernel_param updates and include summary in the logs

* hex-mm: add support for GGML_HEXAGON_MM_SELECT

* hex-mm: add hex-common header

* hex-mm: pass correct number of tasks to workpool

* hex-mm: add proper checks for no-work in dyn.quant tasks

* hex-mm: convert all quantizers into a macro

* hex-mm: fix hvx-flat fallback to pass all MUL_MAT tests

* hex-mm: vectorize q8_1 quantizer

* hex-mm: improve fused ffn mm stride handling

* hex-mm: consistent use of n_threads and pipeline in kernel_params

* hexagon: minor formatting

* hex-mm: update MUL_MAT_ID kernel_param handling to make sure host/npu are in sync

* hvx-mm: go back to accumulating in fp32 in tiled hvx kernels, more accurate and same perf

* hvx-mm: unroll the loops and remove masking that is not needed for tiled accums

* hmx-mm: optimize activation processing (slit loops, some unrolling, etc)

* hmx-mm: minor optimization for output processing

* hex-mm: consistent use of uint32_t and size_t in mm kernels

* hex-mm: remove legacy restrictions for rows to be multiple of 256

* hexagon: replace sprintf with snprintf

* hex-mm: relax hardcoded nrows checks and rely on VTCM size requirements

* hexagon: minor alignment fix

* hexagon: fix trailing spaces

* hex-mm: relax padding from 256 to 128 (leftovers)

* hex-mm: remove redundant checks for weight align to 128

we always use 2D dma for the weights and align them properly

* hmx-mm: MUL_MAT_ID better work distribution between hvx threads and hmx tracing

* hex-mm: specialize per-token mmid activation handling

* hex-profile: update python scripts to handle kernel-params section in the logging output

* hex-mm: move n_prefetch (aka dma_depth) into kernel params and remove unused fields

* hex-trace: use easier to parse format, simply and fix post-proc scripts

* hmx-mm: relax 32 row limit for output processing which helps utilization

* hmx-mm: use start-chunk idx for tracing info

* hmx-mm: parameterize activation dma pipeline

* hexagon: add support for simple graph caching to avoid recomputing kernel-params

* hex-mm: remove left-over repack functions

* hex-mm: tighten n_prefetch asserts

* hex-mm: remove duplicate round/align_up helper

* hexagon: cleanup common header used in host/npu

* hexagon: update early wakeup threshold

* hmx-mm: define cost constants and update solver to assume that repacked ne[1] is padded to 32

* hmx-mm: make precompute_matmul a bit more readable (split into smaller functions, etc)

* hex-mm: remove n_threads constraint

* hex-mm: minor formatting updates

* hex-mm: remove obsolete profiling logs

* hex-mm: restore hardcode gate to refuse lm-head to avoid repacking that tensor

ggml/src/ggml-hexagon/htp/hvx-base.h

@@ -170,25 +170,7 @@ static inline HVX_VectorPair hvx_vec_f16_to_f32(HVX_Vector v) {
 }
 #endif
 
-/* Q6_Vsf_equals_Vw is only available on v73+.*/
-#if __HVX_ARCH__ < 73
-static inline HVX_Vector hvx_vec_i32_to_qf32(HVX_Vector const in)
-{
-    HVX_Vector const vzero = Q6_V_vzero();
-    HVX_VectorPred is_zero = Q6_Q_vcmp_eq_VwVw(in, vzero);
-    HVX_Vector lshift = Q6_Vw_vnormamt_Vw(in);
-    HVX_Vector normalized = Q6_Vw_vasl_VwVw(in, lshift);
-    HVX_Vector vexp = Q6_Vw_vsub_VwVw(Q6_V_vsplat_R(0x7f + 30), lshift);
-    HVX_Vector mant = Q6_V_vand_VV(Q6_V_vsplat_R(0xFFFFFF00), normalized);
-    HVX_Vector ret = Q6_V_vmux_QVV(is_zero, vzero, Q6_Vw_vadd_VwVw(mant, vexp));
-    return ret;
-}
 
-static inline HVX_Vector Q6_Vsf_equals_Vw(HVX_Vector const in)
-{
-    return Q6_Vsf_equals_Vqf32(hvx_vec_i32_to_qf32(in));
-}
-#endif
 
 static inline HVX_Vector hvx_vec_i16_from_hf_rnd_sat(HVX_Vector vin) {
     // This looks complicated.
@@ -305,4 +287,17 @@ static inline HVX_Vector hvx_vec_mul_f32_f32(HVX_Vector a, HVX_Vector b) {
 
 #endif // __HVX_ARCH__ < 79
 
+static inline HVX_Vector hvx_vec_load_act_tile(const uint8_t * y_q, uint32_t kt, HVX_Vector * v_act_all) {
+    if (kt % 4 == 0) {
+        *v_act_all = hvx_vmem(y_q + kt * 32);
+        return *v_act_all;
+    } else if (kt % 4 == 1) {
+        return Q6_V_vror_VR(*v_act_all, 32);
+    } else if (kt % 4 == 2) {
+        return Q6_V_vror_VR(*v_act_all, 64);
+    } else {
+        return Q6_V_vror_VR(*v_act_all, 96);
+    }
+}
+
 #endif /* HVX_BASE_H */