microsoft · hariharans29 · Nov 13, 2025 · Sep 15, 2025 · Nov 13, 2025 · Nov 13, 2025
diff --git a/cmake/deps.txt b/cmake/deps.txt
@@ -56,5 +56,5 @@ extensions;https://github.com/microsoft/onnxruntime-extensions/archive/c24b7bab0
 directx_headers;https://github.com/microsoft/DirectX-Headers/archive/refs/tags/v1.613.1.zip;47653509a3371eabb156360f42faf582f314bf2e
 cudnn_frontend;https://github.com/NVIDIA/cudnn-frontend/archive/refs/tags/v1.12.0.zip;7e733cfdc410d777b76122d64232499205589a96
 dawn;https://github.com/google/dawn/archive/13c1635a14574ebb7116b56a69f5519301417fda.zip;0aadd28fc385cf7d657d5fc70a352372d2d3c76a
-kleidiai;https://github.com/ARM-software/kleidiai/archive/refs/tags/v1.10.0.tar.gz;11b62149cb2514b3b9069cc435c3aa7a4e82b97a
+kleidiai;https://github.com/ARM-software/kleidiai/archive/refs/tags/v1.15.0.tar.gz;62ccd24ab60bcef68766440fb42d79071ac2a5d2
 duktape;https://github.com/svaarala/duktape/releases/download/v2.7.0/duktape-2.7.0.tar.xz;8200c8e417dbab7adcc12c4dbdef7651cfc55794
diff --git a/onnxruntime/contrib_ops/cpu/quantization/dynamic_quantize_matmul.cc b/onnxruntime/contrib_ops/cpu/quantization/dynamic_quantize_matmul.cc
@@ -1,7 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-#include "core/common/cpuid_info.h"  // for CPUIDInfo::GetCPUIDInfo().HasArm_SME()
+#include "core/common/cpuid_info.h"  // for CPUIDInfo::GetCPUIDInfo().HasArm_SME2()
 #include "core/common/narrow.h"
 #include "core/common/safeint.h"
 #include "core/mlas/inc/mlas.h"
@@ -213,9 +213,9 @@ class DynamicQuantizeMatMul final : public MatMulIntegerToFloatBase {
         }
       }
 
-      // Currently, MlasDynamicQGemmBatch() and associated functions require SME or else they are no-ops.
+      // Currently, MlasDynamicQGemmBatch() and associated functions require SME2 or else they are no-ops.
       // We check that here too before attempting to use them.
-      if (!CPUIDInfo::GetCPUIDInfo().HasArm_SME()) {
+      if (!CPUIDInfo::GetCPUIDInfo().HasArm_SME2()) {
         can_use_dynamic_quant_mlas_ = false;
       }
 

diff --git a/onnxruntime/core/mlas/lib/kleidiai/convolve_kleidiai.cpp b/onnxruntime/core/mlas/lib/kleidiai/convolve_kleidiai.cpp
@@ -12,6 +12,7 @@
 #include <functional>
 #include <unordered_map>
 
+#include "kai/ukernels/matmul/imatmul_clamp_f32_f32p_f32p/kai_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme_mopa.h"
 #include "kai/ukernels/matmul/imatmul_clamp_f32_f32p_f32p/kai_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa.h"
 #include "kai/ukernels/matmul/pack/kai_lhs_imatmul_pack_x32p2vlx1_x32p_sme.h"
 #include "kai/ukernels/matmul/pack/kai_rhs_imatmul_pack_kxn_x32p2vlx1b_x32_x32_sme.h"
@@ -161,24 +162,7 @@ static bool CheckCapabilitiesSme(const MLAS_CONV_PARAMETERS* Parameters) {
         return false;
     }
 
-    //optimization checks - is the implementation optimal for the conv request
-
-    const auto n_step = kai_get_n_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa();
-    const auto m_step = kai_get_m_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa();
-
-    auto M = ComputeConvOutSize(Parameters->InputShape[0], ComputeKernelSize(Parameters->DilationShape[0],
-                                Parameters->KernelShape[0]), Parameters->Padding[0], Parameters->StrideShape[0]) *
-             ComputeConvOutSize(Parameters->InputShape[1], ComputeKernelSize(Parameters->DilationShape[1],
-                                Parameters->KernelShape[1]), Parameters->Padding[1], Parameters->StrideShape[1]);
     auto N = Parameters->FilterCount;
-    auto K = Parameters->InputChannels * Parameters->KernelShape[0] * Parameters->KernelShape[1];
-
-    //Can use these variables to add other conditions as required
-    MLAS_UNREFERENCED_PARAMETER(M);
-    MLAS_UNREFERENCED_PARAMETER(K);
-    MLAS_UNREFERENCED_PARAMETER(m_step);
-    MLAS_UNREFERENCED_PARAMETER(n_step);
-
     if (N == 1 || Parameters->KernelShape[0] < 3 || Parameters->KernelShape[1] < 3) {
         KLEIDIAI_DEBUG_LOG("CheckCapabilitiesSme returning false on optimization checks.");
         return false;
@@ -314,8 +298,8 @@ static void MultiThreadedLHSPackSme(MLAS_THREADPOOL* ThreadPool, const size_t ci
                                     const size_t kw, const void * const* lhs_ptrs, std::byte* lhs_data,
                                     const float* in_data,
                                     const float* pad_ptr) {
-
-    auto m_step = kai_get_m_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa();
+    size_t m_step = ArmKleidiAI::UseSME2 ? kai_get_m_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa()
+                                         : kai_get_m_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme_mopa();
 
     // Minimize the kernel call count for the number of available threads
     auto RequiredTiles = MlasDivRoundup(m, m_step);
@@ -399,7 +383,9 @@ static std::shared_ptr<const void*[]> LhsPtrFill(const size_t ci, const size_t i
 
     const auto m = ComputeConvOutSize(ih, kh, padding, sh) * ComputeConvOutSize(iw, kw, padding, sw);
 
-    const auto m_step = kai_get_m_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa();
+    const auto m_step = ArmKleidiAI::UseSME2 ? kai_get_m_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa()
+                                             : kai_get_m_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme_mopa();
+
     const auto lhs_ptrs_k = kh * kw;
     const auto lhs_ptrs_m = m_step * MlasDivRoundup(m, m_step);
     auto lhs_ptrs = std::shared_ptr<const void*[]>(new const void*[lhs_ptrs_k * lhs_ptrs_m],
@@ -505,13 +491,13 @@ static std::unique_ptr<std::byte[]> LhsPackImageDataSme(const size_t ci, const s
 }
 
 static void ConvolveSme(const size_t co, //channels out
-                        const size_t ci, //channels in
-                        const size_t ih, //image height
-                        const size_t iw, //image width
-                        const size_t kh, //kernel height
-                        const size_t kw, //kernel width
-                        const size_t sh, //kernel stride height
-                        const size_t sw, //kernel stride width
+                        const size_t ci,  //channels in
+                        const size_t ih,  //image height
+                        const size_t iw,  //image width
+                        const size_t kh,  //kernel height
+                        const size_t kw,  //kernel width
+                        const size_t sh,  //kernel stride height
+                        const size_t sw,  //kernel stride width
                         const size_t dilationh, //kernel dilation stride
                         const size_t dilationw, //kernel dilation stride
                         const size_t padding,   //padding size
@@ -532,10 +518,12 @@ static void ConvolveSme(const size_t co, //channels out
     const auto m = ComputeConvOutSize(ih, d_kh, padding, sh) *
                    ComputeConvOutSize(iw, d_kw, padding, sw);
 
-    auto n_step = kai_get_n_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa();
-    auto m_step = kai_get_m_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa();
+    size_t n_step = ArmKleidiAI::UseSME2 ? kai_get_n_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa()
+                                         : kai_get_n_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme_mopa();
+    size_t m_step = ArmKleidiAI::UseSME2 ? kai_get_m_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa()
+                                         : kai_get_m_step_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme_mopa();
 
-    //tile iteration dimensions
+    // tile iteration dimensions
     std::array<size_t,3> dim;
     dim[0] = 1;                          // B
     dim[1] = MlasDivRoundup(m, m_step);  // M
@@ -571,29 +559,23 @@ static void ConvolveSme(const size_t co, //channels out
         auto lhs = LhsPackImageDataSme(ci, ih, iw, d_kh, d_kw, sh, sw, padding, in, ThreadPool);
         auto rhs = RhsPackWeightsBiasSme(co, ci, kh, kw, dilationh, dilationw, weights, bias, ThreadPool);
 
-
-        MlasTrySimpleParallel(ThreadPool,
-            static_cast<ptrdiff_t>(dim[0]*dim[1]*dim[2]),
-            [&](ptrdiff_t tid)
-        {
+        MlasTrySimpleParallel(ThreadPool, static_cast<ptrdiff_t>(dim[0] * dim[1] * dim[2]), [&](ptrdiff_t tid) {
             //compute B,M,N index from iteration index
             //ptrdiff_t BIdx = tid / (dim[1] * dim[2]);
             ptrdiff_t MIdx = (tid % (dim[1] * dim[2])) / dim[2];
             ptrdiff_t NIdx = (tid % (dim[1] * dim[2])) % dim[2];
 
             // Get rhs tile, B
-            const size_t rhs_packed_offset =
-                kai_get_rhs_packed_offset_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa(NIdx*n_step,
-                                                                                                   d_kh*d_kw,ci);
+            const size_t rhs_packed_offset = ArmKleidiAI::UseSME2 ? kai_get_rhs_packed_offset_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa(NIdx * n_step, d_kh * d_kw, ci)
+                                                                  : kai_get_rhs_packed_offset_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme_mopa(NIdx * n_step, d_kh * d_kw, ci);
 
             auto BTile = reinterpret_cast<const void*>(
                 reinterpret_cast<const std::byte*>(rhs.get()) + rhs_packed_offset
             );
 
             // Get lhs tile, A
-            const size_t lhs_packed_offset =
-                kai_get_lhs_packed_offset_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa(MIdx*m_step,
-                                                                                                   d_kh*d_kw,ci);
+            const size_t lhs_packed_offset = ArmKleidiAI::UseSME2 ? kai_get_lhs_packed_offset_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa(MIdx * m_step, d_kh * d_kw, ci)
+                                                                  : kai_get_lhs_packed_offset_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme_mopa(MIdx * m_step, d_kh * d_kw, ci);
 
             auto ATile = reinterpret_cast<const float*>(
                 reinterpret_cast<const std::byte*>(lhs.get()) + lhs_packed_offset
@@ -607,12 +589,19 @@ static void ConvolveSme(const size_t co, //channels out
                 MIdx * m_step * co * sizeof(float) +
                 NIdx * n_step * sizeof(float)];
 
-            KLEIDIAI_KERNEL_LOG("kai_run_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa"
-                                << " M=" << TileSizeM << " N=" << TileSizeN << " k_chunk_count=" << (d_kh*d_kw) << " k_chunk_length=" << ci);
-            kai_run_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa(
-                TileSizeM, TileSizeN, d_kh*d_kw, ci, ATile, BTile, CTile, co * sizeof(float),
-                -std::numeric_limits<float>::max(), std::numeric_limits<float>::max()
-            );
+            if (ArmKleidiAI::UseSME2) {
+                KLEIDIAI_KERNEL_LOG("kai_run_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa" << " M=" << TileSizeM << " N=" << TileSizeN << " k_chunk_count=" << (d_kh * d_kw) << " k_chunk_length=" << ci);
+                kai_run_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme2_mopa(
+                    TileSizeM, TileSizeN, d_kh * d_kw, ci, ATile, BTile, CTile, co * sizeof(float),
+                    -std::numeric_limits<float>::max(), std::numeric_limits<float>::max()
+                );
+            } else {
+                KLEIDIAI_KERNEL_LOG("kai_run_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme_mopa" << " M=" << TileSizeM << " N=" << TileSizeN << " k_chunk_count=" << (d_kh * d_kw) << " k_chunk_length=" << ci);
+                kai_run_imatmul_clamp_f32_f32p2vlx1_f32p2vlx1b_2vlx2vl_sme_mopa(
+                    TileSizeM, TileSizeN, d_kh * d_kw, ci, ATile, BTile, CTile, co * sizeof(float),
+                    -std::numeric_limits<float>::max(), std::numeric_limits<float>::max()
+                );
+            }
         });
 
         if (result == tmp_mlas_aligned) {
@@ -712,11 +701,11 @@ ArmKleidiAI::MlasConv(
     )
 {
     if(!CheckCapabilitiesSme(Parameters)){
-        //Fallback to Default Mlas
+        // Fallback to Default Mlas
         return false;
     };
     ConvolveSme(Parameters->FilterCount, Parameters->InputChannels,          // channel out, in
-                Parameters->InputShape[0], Parameters->InputShape[1],        // image dimensions
+                Parameters->InputShape[0], Parameters->InputShape[1],         // image dimensions
                 Parameters->KernelShape[0], Parameters->KernelShape[1],      // kernel dimensions
                 Parameters->StrideShape[0], Parameters->StrideShape[1],      // kernel stride dimensions
                 Parameters->DilationShape[0], Parameters->DilationShape[1],  // kernel dilation

diff --git a/onnxruntime/core/mlas/lib/kleidiai/mlasi_kleidiai.h b/onnxruntime/core/mlas/lib/kleidiai/mlasi_kleidiai.h
@@ -6,7 +6,7 @@
 
 #pragma once
 
-#include "mlasi.h"
+#include "../mlasi.h"
 #include <iostream>
 
 // Fix to ensure compatibility with MSVC build
@@ -50,13 +50,12 @@
 #endif
 
 namespace ArmKleidiAI {
+
 // By default we should try for SME2 first before falling back to SME.
 inline const bool UseSME2 = MLAS_CPUIDINFO::GetCPUIDInfo().HasArm_SME2();
 
-//
 // Buffer packing routines.
 //
-
 size_t
 MLASCALL
 MlasGemmPackBSize(

diff --git a/onnxruntime/core/mlas/lib/qgemm.cpp b/onnxruntime/core/mlas/lib/qgemm.cpp
@@ -210,9 +210,9 @@ MlasDynamicQGemmBatch (
     MLAS_THREADPOOL* ThreadPool
 ) {
 #if defined(USE_KLEIDIAI) && !defined(_MSC_VER)
-    //No fallback and putting in guards
-    if(MLAS_CPUIDINFO::GetCPUIDInfo().HasArm_SME()){
-    ArmKleidiAI::MlasDynamicQGemmBatch(Shape, DataParams, BatchN, ThreadPool);
+    //No fallback and putting in guards. This implementation is SME2 specific.
+    if(ArmKleidiAI::UseSME2){
+        ArmKleidiAI::MlasDynamicQGemmBatch(Shape, DataParams, BatchN, ThreadPool);
     }
 #endif
 

diff --git a/onnxruntime/test/mlas/unittest/test_dynamic_qgemm.cpp b/onnxruntime/test/mlas/unittest/test_dynamic_qgemm.cpp
@@ -20,9 +20,9 @@ class MlasDynamicQgemmTest {
 
  public:
   void Test(size_t M, size_t N, size_t K, size_t BatchSize) {
-    // Currently, MlasDynamicQGemmBatch() and associated functions require SME or else they are no-ops.
-    if (!MLAS_CPUIDINFO::GetCPUIDInfo().HasArm_SME()) {
-      GTEST_SKIP() << "MlasDynamicQGemmBatch() requires ARM64 SME but it was not detected. Skipping test.";
+    // Currently, MlasDynamicQGemmBatch() and associated functions require SME2 or else they are no-ops.
+    if (!MLAS_CPUIDINFO::GetCPUIDInfo().HasArm_SME2()) {
+      GTEST_SKIP() << "MlasDynamicQGemmBatch() requires ARM64 SME2 but it was not detected. Skipping test.";
     }
 
     // Setup buffers for holding various data