Commit Graph

1912 Commits

Author SHA1 Message Date
aendk 58a4d04399 Relax requirement of checks in async CUDA copies from backend and buffer type to just buffer type, to avoid linking issues 2026-01-19 10:37:08 +01:00
aendk d75d64bb60 Reworked backend detection in ggml-backend.cpp to avoid linking
conflicts
2026-01-19 10:37:08 +01:00
aendk bc4cdcaca6 Adds macro guards to allow compilation in non-CUDA builds 2026-01-19 10:37:08 +01:00
aendk e7ad9b382f Exchanges synchronous copy with async copy function. 2026-01-19 10:37:07 +01:00
aendk 377490f1e2 Adds function to relax sync requirements between input copies on
supported backends (CUDA for now)
2026-01-19 10:37:07 +01:00
aendk 05cc38ba89 Adds CPU-to-CUDA copy capability to
ggml_backend_cuda_cpy_tensor_async()
2026-01-19 10:37:07 +01:00
lhez d1b4757ded
opencl: fix q6_K mv for m=1 (#18893) 2026-01-17 13:50:32 -08:00
Reese Levine a89002f07b
ggml webgpu: support for backend sampling (#18880)
* ggml webgpu: add SOFTPLUS unary operator

Implements SOFTPLUS (log(1 + exp(x))) with f16/f32 support. Uses f32
precision for intermediate calculations to prevent f16 overflow.

* Add shader implementation and 4 variants (f32/f16, inplace/non-inplace)
* Register pipelines and device support
* Follow Vulkan backend numerical stability pattern

* ggml webgpu: add EXPM1 unary operator

Implements EXPM1 (exp(x) - 1) with f16/f32 support.

* Add shader implementation and 4 variants (f32/f16, inplace/non-inplace)
* Register pipelines and device support

* ggml webgpu: add FLOOR unary operator

Implements FLOOR (rounds down to nearest integer) with f16/f32 support.

* Add shader implementation and 4 variants (f32/f16, inplace/non-inplace)
* Register pipelines and device support

* ggml webgpu: add CEIL unary operator

Implements CEIL (rounds up to nearest integer) with f16/f32 support.

* Add shader implementation and 4 variants (f32/f16, inplace/non-inplace)
* Register pipelines and device support

* ggml webgpu: add ROUND unary operator

Implements ROUND (rounds to nearest integer) with f16/f32 support.

* Add shader implementation and 4 variants (f32/f16, inplace/non-inplace)
* Register pipelines and device support

* ggml webgpu: add TRUNC unary operator

Implements TRUNC (truncates towards zero) with f16/f32 support.

* Add shader implementation and 4 variants (f32/f16, inplace/non-inplace)
* Register pipelines and device support

* docs : update WebGPU support for unary operators (FLOOR, CEIL, ROUND, TRUNC, EXPM1, SOFTPLUS)

* Updates to webgpu get_memory

* Add argmax

* Add argmax,cumsum,sum,sum_rows

* Add necessary CPY/GET_ROWS operators

* Support for argsort using multi-pass strategy

* Update set_rows for i32 indices, move to pre-wgsl

* Port unary operators to pre-wgsl and support FILL

* Implement PAD

* Add support for top-k

* clean up, scope pipeline init mutex

* fix newline

* Add support for log

* Update LOG for better precision, and ops doc

---------

Co-authored-by: Abhijit Ramesh <abhijitramesh2k@gmail.com>
2026-01-16 16:12:43 -08:00
Thore Koritzius 388ce82241
ggml : extend ggml_pool_1d + metal (#16429)
* chore: resolve conflicts

* feat: ggml metal impl

* fix: ggml_metal_kargs_pool_1d struct

* fix: require contiguous input

* chore: test pool_1d

* chore: limit pool1d test cases to p0=0 and s0=k0 to conform with asserts

* chore: add p0 and s0 to testing

* fix: allow padding for cpu and metal

* Update ggml/src/ggml-metal/ggml-metal.metal

* fix: correct single-threaded loop

* ggml : cleanup

* tests : add ne[1] != 1 tests

* fix: ne[1] handling in np

* cont : fixes

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
2026-01-16 16:59:56 +02:00
Perry Naseck 0802d4cfb3
ggml-blas: hide warnings from included BLAS headers (#18818)
* fix compile def openblas, blis for compat libs, nvpl compile def, warn if no blas vendor set

* ggml-blas: hide warnings from included BLAS headers
2026-01-16 13:38:25 +02:00
Raul Torres 4ea2eaac01
CANN: Remove unused `ggml_cann_get_device` function (#18625) 2026-01-16 16:34:09 +08:00
Chenguang Li e20fa27a02
CANN: fix an issue where get_env was not fully renamed (#18796)
* CANN: fix an issue where get_env was not fully renamed

* ci: add cann with acl group

* ci: define use_acl_graph using GitHub Action

* ci: update cann dockerfile with acl graph
2026-01-16 16:24:04 +08:00
hipudding baa4ba0aec
CANN: support gated linear attn (#18653)
* CANN: support gated linear attn

This change adds support for the GGML_OP_GATED_LINEAR_ATTN operator.
The feature was implemented by YushengZhao. Because the previous
submission was based on an outdated codebase, this PR was rebased to
merge.

Co-authored-by: YushengZhao <yusheng.chao@outlook.com>
Co-authored-by: hipudding <huafengchun@gmail.com>

* CANN: optimize OP gla

Optimize gla for high preformance

* Remove unused comments

---------

Co-authored-by: 赵禹昇 <2501112001@cninfer02.localdomain>
Co-authored-by: YushengZhao <yusheng.chao@outlook.com>
2026-01-16 16:18:49 +08:00
shaofeiqi 785a710085
OpenCL: add SOLVE_TRI op support (#18846) 2026-01-15 11:17:17 -08:00
Georgi Gerganov 6e7fc8a146
cuda : print less debug logs when disabling cuda graphs (#18868) 2026-01-15 20:53:01 +02:00
Johannes Gäßler 5c662d21a3
CUDA: fix allignment on register spill for FA (#18815) 2026-01-15 15:14:50 +01:00
shalinib-ibm 8cc0ba957b
ggml-cpu: optimize ggml_vec_dot_bf16 for Power9 (#18837) 2026-01-15 17:31:18 +08:00
Max Krasnyansky cff777f226
hexagon: support for OP_CPY, host buffers now optional, hvx-utils refactoring and optimizations (#18822)
* hexagon: disable repack buffers if host buffers are disabled, improved handling of env vars

* hexagon: add support for OP_CPY fp16/fp32 -> fp16/fp32

Factore out all hvx_copy functions into hvx-copy.h header and reduced code duplication.
Update HTP ops infra to support OP_CPY

* hexagon: cleanup and refactor hex/hvx/htp headers and helper libs

hex is basically all scalar/core platform stuff (L2, DMA, basic utils)
hvx is all hvx related utils, helpers, etc
htp is higher level stuff like Ops, etc

hvx-utils library got a nice round of cleanup and refactoring to reduce duplication

use hvx_vec_store_a where possible

* hexagon: refactor HVX sigmoid functions to hvx-sigmoid.h

Moved sigmoid and tanh vector functions from hvx-utils.h to a new header
hvx-sigmoid.h. Implemented aligned and unaligned variants for sigmoid
array processing using a macro pattern similar to hvx-copy.h. Updated
act-ops.c to use the new aligned variant hvx_sigmoid_f32_aa. Removed
unused hvx-sigmoid.c.

* hexagon: factor out hvx-sqrt.h

* hexagon: mintor update to hvx-utils.h

* hexagon: remove spurios log

* hexagon: factor out and optimize hvx_add/sub/mul

* hexagon: remove _opt variants of add/sub/mul as they simply fully aligned versions

* hexagon: refactor reduction functions to hvx-reduce.h

Moved `hvx_self_max_f32` and `hvx_self_sum_f32` from `hvx-utils.h`/`.c` to `hvx-reduce.h`.
Renamed them to `hvx_reduce_max_f32` and `hvx_reduce_sum_f32`.
Added aligned (`_a`) and unaligned (`_u`) variants and used macros to unify logic.
Updated `softmax-ops.c` to use the new functions.

* hexagon: refactor the rest of arithmetic functions to hvx-arith.h

Moved `hvx_sum_of_squares_f32`, `hvx_min_scalar_f32`, and `hvx_clamp_scalar_f32` from `hvx-utils.c/h` to `hvx-arith.h`. Implemented aligned/unaligned variants (`_aa`, `_au`, etc.) and used macros to reduce code duplication. Updated `hvx_min_scalar_f32` and `hvx_clamp_scalar_f32` to use `dst, src, ..., n` argument order. Updated call sites in `act-ops.c`.

Refactor Hexagon HVX arithmetic functions (min, clamp) to hvx-arith.h

Moved `hvx_min_scalar_f32` and `hvx_clamp_scalar_f32` from `hvx-utils.c/h` to `hvx-arith.h`. Implemented aligned/unaligned variants (`_aa`, `_au`, etc.) and used macros to reduce code duplication. Updated these functions to use `dst, src, ..., n` argument order and updated call sites in `act-ops.c`. `hvx_sum_of_squares_f32` remains in `hvx-utils.c` as requested.

* hexagon: refactor hvx_sum_of_squares_f32

- Modify `hvx_sum_of_squares_f32` in `ggml/src/ggml-hexagon/htp/hvx-reduce.h` to use `dst, src` signature.
- Implement `_a` (aligned) and `_u` (unaligned) variants for `hvx_sum_of_squares_f32`.
- Update `hvx_reduce_loop_body` macro to support both returning and storing results via `finalize_op`.
- Update existing reduction functions in `hvx-reduce.h` to use the updated macro.
- Update `rms_norm_htp_f32` in `ggml/src/ggml-hexagon/htp/unary-ops.c` to match the new signature.

* hexagon: use hvx_splat instead of memset

* hexagon: consistent use of f32/f16 in all function names to match the rest of GGML

* hexagon: fix hvx_copy_f16_f32 on v75 and older

* hexagon: update readme to include GGML_HEXAGON_EXPERIMENTAL

* scripts: update snapdragon/adb scripts to enable host param
2026-01-14 21:46:12 -08:00
Oliver Simons 36f0132464
CUDA: Factor out and re-use `block_reduce` function (#18785)
* CUDA: Refactor and expose two_stage_warp_reduce_* function

* Use `two_stage_warp_reduce` also in softmax kernel, move smem out of it

Moving smem out of `__device__` function to `__global__` function
allows for explicit smem reuse, as either compiler or cuda rt seem to not
free it afterwards (`cudaFuncSetAttribute` fails when not accounting for
it once for each call to two_stage_warp_reduce)

* Update ggml/src/ggml-cuda/common.cuh

Co-authored-by: Aman Gupta <amangupta052@gmail.com>

* Use two_stage_warp_reduce in group_norm_f32

* Use two_stage_warp_reduce in rms_norm_f32

* Fix smem calculation which expects bytes

* Make `two_stage_warp_reduce` accept all values warp_reduce accepts

Also integrate it into norm_f32 function

* Use two_stage_warp_reduce in l2_norm_f32

* Use type traits for block reduction for better legibility

Also adresss other requests by @am17an such as variable renaming

* Make norm tests cover all cuda paths

* Mark columns % WARP_SIZE !=0 as supported for RMS_NORM_BACK

Unit-tests passed locally, let's see if they pass in the CI as well

* Use `enum class` for `block_reduce_method`

This is more type-safe than plain enum

* Rename variables as suggested in code review by @am17an

* Rename two_stage_warp_reduce -> block_reduce

* Fix trailing whitespace in common.cuh

* Make condition of static_assert type-dependent

This delays evaluation until the template is actually instantiated.
Otherwise, some compilers may evaluate the assert when parsing the
template, resulting in build errors as observed here:

https://github.com/ggml-org/llama.cpp/actions/runs/20960323123/job/60235530068?pr=18785

* Inline definitions

---------

Co-authored-by: Aman Gupta <amangupta052@gmail.com>
2026-01-15 10:44:54 +08:00
Jeff Bolz 3e4bb29666
vulkan: Check maxStorageBufferRange in supports_op (#18709)
* vulkan: Check maxStorageBufferRange in supports_op

* skip maxStorageBufferRange check when shader64BitIndexing is enabled
2026-01-14 10:59:05 +01:00
Daniel Bevenius 01cbdfd7eb
CUDA : fix typo in clang pragma comment [no ci] (#18830) 2026-01-14 10:31:49 +01:00
Ruben Ortlam 635ef78ec5
vulkan: work around Intel fp16 bug in mmq (#18814) 2026-01-14 09:41:23 +01:00
Perry Naseck 7d587e5544
ggml-metal: do not copy headers for embedded, use current binary dir for embedded (#18705) 2026-01-14 09:22:25 +02:00
yulo ea4a321f2a
HIP: add fattn-mma-f16 for RDNA4 (#18481)
* finish VQ mma

* flash_attn_ext_f16_iter

* KQ_rowsum

* correct exp

* fix scale error

* fix softmax scale

* fix softmax scale

* enable fattn on cpu side

* fix random error

* disable fattn-mma-f16 on rdna3

* fix wrong col for rdna

* use identity mat to transpose

* resolve conflicts

* basic tuning for DeepSeek-R1-Distill-Qwen-1.5B

* fix volta compile error

* align rdna4 policy for fattn

* adjust fattn policy

* adjust kernel selection logic

* update as the review comments

* keep fattn-wmma logic

* adjust kernel selection logic

---------

Co-authored-by: zhang hui <you@example.com>
Co-authored-by: Johannes Gäßler <johannesg@5d6.de>
2026-01-13 13:52:16 +01:00
Georgi Gerganov 0a57271ab6
CUDA : fix unused argument when USE_CUDA_GRAPH=OFF (#18800) 2026-01-13 12:25:53 +02:00
Jeff Bolz 8e2da778da
vulkan: change memory_logger to be controlled by an env var (#18769) 2026-01-12 13:32:55 +01:00
Jeff Bolz 2bbe4c2cf8
vulkan: Use VK_EXT_shader_64bit_indexing to handle large mat_mul(_id) (#18678)
This fixes incoherent output in Llama-4-Maverick-17B-128E-PAB-Q8_0, which
has a mul_mat_id with an A matrix that's Q8_0 8192 x 5120 x 128.

This should work when the number of blocks in the A matrix is less than 2^32
(for mul_mat_vec or mul_mm_cm2), or for mul_mm I think the limit is like
2^32*LOAD_VEC_A elements.

- Divide batch_stride by QUANT_K earlier, so the block index calculation works in 32b.
- Each vk_pipeline_struct has a linked list of pipelines that will allow it to handle
variants. So far this change just adds a single use case for this, compiling with the
e64BitIndexingEXT flag.
- Use the 64b indexing variant when the A matrix is larger than maxStorageBufferRange.

64-bit indexing has some cost - around 3-5% in MoE models, so it's worth the effort
to avoid enabling it unconditionally.
2026-01-12 12:32:13 +01:00
Ruben Ortlam 1051ecd289
vulkan: Disable large coopmat matmul configuration on proprietary AMD driver (#18763)
* vulkan: Disable large coopmat matmul configuration on proprietary AMD driver

* Also disable the large tile size
2026-01-12 07:29:35 +01:00
Ruben Ortlam 0e76501e1d
Vulkan: Optimize Matmul parameters for AMD GPUs with Coopmat support (#18749)
* vulkan: Enable and optimize large matmul parameter combination for AMD

* limit tuning to AMD GPUs with coopmat support

* use tx_m values instead of _l
2026-01-11 17:33:33 +01:00
shaofeiqi 707cbafcaa
opencl: add SOFTPLUS op support (#18726) 2026-01-10 21:57:44 -08:00
Johannes Gäßler d2ff4e23ac
HIP: adjust RDNA3.5 MMQ kernel selction logic (#18666) 2026-01-10 17:19:01 +01:00
Perry Naseck 657a2e644b
cmake : update blas logic (#18205) 2026-01-10 18:00:54 +02:00
Michael Wand 600a366478
Corrected: changed s13 = src1->nb[3] instead of nb[2] (#18724) 2026-01-10 10:16:07 +01:00
shaofeiqi 593da7fa49
opencl: add EXPM1 op (#18704) 2026-01-09 10:13:13 -08:00
Reese Levine 9e41884dce
Updates to webgpu get_memory (#18707) 2026-01-09 08:17:18 -08:00
Aaron Teo 046d5fd44e
llama: use host memory if device reports 0 memory (#18587) 2026-01-09 05:34:56 +08:00
Masashi Yoshimura 480160d472
ggml-webgpu: Fix GGML_MEM_ALIGN to 8 for emscripten. (#18628)
* Fix GGML_MEM_ALIGN to 8 for emscripten.

* Add a comment explaining the need for GGML_MEM_ALIGN == 8 in 64-bit wasm with emscripten
2026-01-08 08:36:42 -08:00
Reese Levine 15bff84bf5
ggml webgpu: initial flashattention implementation (#18610)
* FlashAttention (#13)

* Add inplace softmax

* Move rms_norm to split row approach

* Update debug for supports_op

* clean up debug statements

* neg f16xf32xip builds and runs, havent actually ran a model that uses neg kernel yet though

* neg passes backend test

* unary operators pass ggml tests

* rms_norm double declaration bug atoned

* abides by editor-config

* removed vestigial files

* fixed autoconfig

* All operators (inlcluding xielu) working

* removed unnecesarry checking if node->src[1] exists for unary operators

* responded and dealt with PR comments

* implemented REPL_Template support and removed bug in unary operators kernel

* formatted embed wgsl and ggml-webgpu.cpp

* Faster tensors (#8)

Add fast matrix and matrix/vector multiplication.

* Use map for shader replacements instead of pair of strings

* Wasm (#9)

* webgpu : fix build on emscripten

* more debugging stuff

* test-backend-ops: force single thread on wasm

* fix single-thread case for init_tensor_uniform

* use jspi

* add pthread

* test: remember to set n_thread for cpu backend

* Add buffer label and enable dawn-specific toggles to turn off some checks

* Intermediate state

* Fast working f16/f32 vec4

* Working float fast mul mat

* Clean up naming of mul_mat to match logical model, start work on q mul_mat

* Setup for subgroup matrix mat mul

* Basic working subgroup matrix

* Working subgroup matrix tiling

* Handle weirder sg matrix sizes (but still % sg matrix size)

* Working start to gemv

* working f16 accumulation with shared memory staging

* Print out available subgroup matrix configurations

* Vectorize dst stores for sg matrix shader

* Gemv working scalar

* Minor set_rows optimization (#4)

* updated optimization, fixed errors

* non vectorized version now dispatches one thread per element

* Simplify

* Change logic for set_rows pipelines

---------

Co-authored-by: Neha Abbas <nehaabbas@macbookpro.lan>
Co-authored-by: Neha Abbas <nehaabbas@ReeseLevines-MacBook-Pro.local>
Co-authored-by: Reese Levine <reeselevine1@gmail.com>

* Comment on dawn toggles

* Working subgroup matrix code for (semi)generic sizes

* Remove some comments

* Cleanup code

* Update dawn version and move to portable subgroup size

* Try to fix new dawn release

* Update subgroup size comment

* Only check for subgroup matrix configs if they are supported

* Add toggles for subgroup matrix/f16 support on nvidia+vulkan

* Make row/col naming consistent

* Refactor shared memory loading

* Move sg matrix stores to correct file

* Working q4_0

* Formatting

* Work with emscripten builds

* Fix test-backend-ops emscripten for f16/quantized types

* Use emscripten memory64 to support get_memory

* Add build flags and try ci

---------

Co-authored-by: Xuan Son Nguyen <son@huggingface.co>

* Remove extra whitespace

* Move wasm single-thread logic out of test-backend-ops for cpu backend

* Disable multiple threads for emscripten single-thread builds in ggml_graph_plan

* Refactored pipelines and workgroup calculations (#10)

* refactored pipelines

* refactored workgroup calculation

* removed commented out block of prior maps

* Clean up ceiling division pattern

---------

Co-authored-by: Neha Abbas <nehaabbas@eduroam-169-233-141-223.ucsc.edu>
Co-authored-by: Reese Levine <reeselevine1@gmail.com>

* Start work on flash attention

* Shader structure set up (many bugs still)

* debugging

* Working first test

* Working with head grouping, head sizes to 128, logit softcap, mask/sinks enabled, f32

* Generalize softmax to work with multiple subgroups, f16 accumulation, mask shared memory tiling

* Start work on integrating pre-wgsl

* Separate structs/initial shader compilation library into separate files

* Work on compilation choices for flashattention

* Work on subgroup matrix/tile size portability

* subgroup size agnostic online softmax

* Cleanups, quantization types

* more cleanup

* fix wasm build

* Refactor flashattention to increase parallelism, use direct loads for KV in somce cases

* Checkpoint

* formatting

* Update to account for default kv cache padding

* formatting shader

* Add workflow for ggml-ci webgpu

* Try passing absolute path to dawn in ggml-ci

* Avoid error on device destruction, add todos for proper cleanup

* Fix unused warning

* Forgot one parameter unused

* Move some flashattn computation to f32 for correctness
2026-01-08 08:23:39 -08:00
Jeff Bolz 2524c26164
vulkan: fix push constant size for quantize_q8_1 (#18687)
I added an assert to catch further mismatches, and it found several.
Fix those, too.
2026-01-08 15:40:58 +01:00
Jeff Bolz cb14b06995
vulkan: optimize ssm_scan (#18630)
* vulkan: optimize ssm_scan

* fix warp vs subgroup naming
2026-01-08 15:16:54 +01:00
도로로도로또 945bf10627
metal : add MoE kernel specialization for ne20=5 (#18667)
Add template specialization for kernel_mul_mm_id_map0 with ne20=5
to support models using 5 active experts (e.g., VAETKI).
2026-01-08 12:37:45 +02:00
Doctor Shotgun 9a5724dee2
ggml: add env var GGML_OP_OFFLOAD_MIN_BATCH (#18535)
* ggml: add env var GGML_OP_OFFLOAD_MIN_BATCH
* makes the min_batch_size for triggering op offload configurable via env var, defaulting to the prior hardcoded value of 32

* ggml: read GGML_OP_OFFLOAD_MIN_BATCH once and store to dev ctx

* cann: forward declaration of device context struct

* cann: move offload op check after device context declaration

* cuda: fix whitespace

Co-authored-by: Aman Gupta <amangupta052@gmail.com>

---------

Co-authored-by: Aman Gupta <amangupta052@gmail.com>
2026-01-08 11:03:21 +02:00
shaofeiqi 568371a726
opencl: add FILL op support (#18682) 2026-01-07 22:04:50 -08:00
Oliver Walsh f5245b5e4e
cuda : fix build on cuda 12.8 (#18672)
compute121 requires 12.9

Signed-off-by: Oliver Walsh <owalsh@redhat.com>
2026-01-07 22:32:44 +01:00
Jeff Bolz ca4a8370bc
vulkan: reject ops when a tensor is too large to allocate (#18646) 2026-01-07 12:03:32 +01:00
virajwad 03023296cf
vulkan: Warptile tuning for Intel Xe2/Xe3 (#18178)
* modify warptile tuning for xe3

* intel vendor check w/ coopmat support

* fix back formatting

* fix formatting change 2

* move intel check to chip specific tuning part

* Change to support both windows and linux

* modify m_warptile to l_warptile for intel

* modify warptile tuning for bf16 matmuls to fix regression (m_warptile to l_warptile)

* Code style changes

* Code style changes (2)

* Code style changes (3)
2026-01-07 11:59:47 +01:00
Eve 8c77a04cc7
vulkan: more mul mat optimizations (#18533)
* q4_k

* q5_k

* q2_k

* q4_1

* q5_1

* better buf index
2026-01-07 11:13:17 +01:00
hipudding 3333951d86
CANN: Fix rename for get_env (#18652)
In #18624, get_env in ggml-cann was renamed to get_env_as_lowercase
to accurately reflect the function’s behavior and reduce the chance
of misuse. However, the update missed renaming call sites in other
files. This commit fixes that oversight.
2026-01-07 16:11:31 +08:00
Raul Torres 193ee38a1b
CANN: Rename `get_env` to `get_env_as_lowercase` (#18624) 2026-01-07 10:01:25 +08:00
Max Krasnyansky 95ea9e0861
Hexagon add support for f16/f32 flash attention, scale, set-rows and improve f16/32 matmul (#18611)
* hexagon: improve fp16 matmul and add fp32/fp16 flash-attention

* hexagon: add support for set-rows fp32 -> fp16 with i32/i64 row-idx

* hexagon: add support for SCALE fp32

* hexagon: replace scalar fp32 -> fp16 copy with HVX

* hexagon: optimize flash_atten_ext with aligned VTCM buffers and DMA

- Implements double-buffered DMA prefetching for K, V, and Mask tensors.
- Ensures K and V rows in VTCM are padded to 128 bytes to support aligned HVX operations.
- Correctly synchronizes DMA transfers to prevent race conditions.
- Uses `FLASH_ATTN_BLOCK_SIZE` of 128 for efficient chunking.

* hexagon: use aligned mad_f16

* hexagon: flash_atten more aligned ops

* hexagon: optimize scale_f32 hvx helpers

* hexagon: unroll fa loops

* hexagon: remove unused set-rows log

* hexagon: flash_attn_ext add support for DMAing Q

- Update `op_flash_attn_ext` to include Q row size in scratchpad allocation.
- Pad Q row size to 128 bytes for alignment.
- Implement DMA transfer for Q tensor in `flash_attn_ext_f16_thread`.
- Update dot product computations to use VTCM-buffered Q data.

* hexagon: fix handling of NANs hvx dotproducts

* hexagon: cleanup spad allocation in flash-atten

* hexagon: improve fp16/fp32 matmul

- Introduced `vec_dot_f16_f16` and `vec_dot_f16_f16_rx2` kernels using efficient HVX dot product intrinsics.
- Added `quantize_fp32_f16` to copy/convert weights from DDR to VTCM
- Updated `op_matmul` to use the optimized path when VTCM capacity allows and broadcasting requirements are compatible.
- Implemented fallback logic to the original implementation for complex broadcasting scenarios.

* hexagon: fix HVX_ARCH check

* hexagon: matmul cleanup and fp16 fixes

Use aligned vec_dot_f16 for 2d matmuls and unaligned version for 4d.

* hexagon: fix fp16 x fp16 matmuls and some minor refactoring

* hexagon: add support for GET_ROWS f32 -> f32

Also optimize SET_ROWS threading a bit when we have just a few rows to process.

* hexagon: optimize set-rows threading

* hexagon: update adb/run-bench.sh to properly support experimental and verbose options

* hexagon: flash_atten use aligned vectors for dot products
2026-01-06 17:38:29 -08:00