COMPMID-3112: Reworking heuristic for CLGEMM - part1

The new heuristic only affects the floating point execution

Change-Id: Ia6edc14ab1bdda4cee31b7afb096d0305d99b809
Signed-off-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/2942
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

7 files changed, 360 insertions, 20 deletions

diff --git a/arm_compute/runtime/CL/CLTypes.h b/arm_compute/runtime/CL/CLTypes.h
new file mode 100644
index 0000000000..f7b4ebd9b4
--- /dev/null
+++ b/arm_compute/runtime/CL/CLTypes.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2020 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef ARM_COMPUTE_RUNTIME_CLTYPES_H
+#define ARM_COMPUTE_RUNTIME_CLTYPES_H
+
+namespace arm_compute
+{
+/** OpenCL GEMM kernel types */
+enum class CLGEMMKernelType
+{
+    /** Native GEMM kernel with fixed block size.
+     * @note Temporary variant to keep compatibility with the old implementation.
+     * @note This variant will be deprecated in favor of a new and configurable NATIVE variant
+     */
+    NATIVE_V1,
+    /** Reshaped GEMM kernel where both lhs and rhs matrices are reshaped. Fixed block size fixed.
+     * @note Temporary variant to keep compatibility with the old implementation.
+     * @note This variant will be deprecated in favor of RESHAPED
+     */
+    RESHAPED_V1,
+    /** Reshaped GEMM kernel where both lhs and rhs matrices are reshaped. Configurable reshape and block size */
+    RESHAPED,
+    /** Reshaped GEMM kernel where only the rhs matrix is reshaped. Configurable reshape and block size */
+    RESHAPED_ONLY_RHS
+};
+
+/** OpenCL GEMM kernel selection parameters. These information are retrieved to select the GEMM kernel on OpenCL */
+struct CLGEMMKernelSelectionParams
+{
+    unsigned int m{ 0 };                        /**< Number of rows for the lhs matrix. Lhs matrix NOT transposed */
+    unsigned int n{ 0 };                        /**< Number of columns for the rhs matrix. Rhs matrix NOT transposed */
+    unsigned int k{ 0 };                        /**< Number of rows for the rhs matrix. Rhs matrix NOT transposed */
+    bool         is_rhs_constant{ false };      /**< True if the content of the rhs matrix is constant */
+    DataType     data_type{DataType::UNKNOWN};  /**< Data type */
+};
+} // namespace arm_compute
+#endif /* ARM_COMPUTE_RUNTIME_CLTYPES_H */
diff --git a/arm_compute/runtime/CL/ICLGEMMKernelSelection.h b/arm_compute/runtime/CL/ICLGEMMKernelSelection.h
new file mode 100644
index 0000000000..69b941109d
--- /dev/null
+++ b/arm_compute/runtime/CL/ICLGEMMKernelSelection.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2020 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef ARM_COMPUTE_ICLGEMMKERNELSELECTION_H
+#define ARM_COMPUTE_ICLGEMMKERNELSELECTION_H
+
+#include "arm_compute/core/GPUTarget.h"
+#include "arm_compute/core/Types.h"
+#include "arm_compute/runtime/CL/CLTypes.h"
+
+namespace arm_compute
+{
+namespace cl_gemm
+{
+/** Basic interface for the GEMM kernel selection */
+class ICLGEMMKernelSelection
+{
+public:
+    /** Constructor
+     *
+     * @param[in] arch GPU target
+     */
+    ICLGEMMKernelSelection(GPUTarget arch)
+        : _target(arch)
+    {
+    }
+    /** Default Move Constructor. */
+    ICLGEMMKernelSelection(ICLGEMMKernelSelection &&) = default;
+    /** Default move assignment operator */
+    ICLGEMMKernelSelection &operator=(ICLGEMMKernelSelection &&) = default;
+    /** Virtual destructor */
+    virtual ~ICLGEMMKernelSelection() = default;
+    /** Given the input parameters passed through @ref CLGEMMKernelSelectionParams, this method returns the @ref CLGEMMKernelType to use
+     *
+     * @param[in] params Input parameters used by the function to return the OpenCL GEMM's kernel
+     *
+     * @return @ref CLGEMMKernelType
+     */
+    virtual CLGEMMKernelType select_kernel(const CLGEMMKernelSelectionParams &params) = 0;
+
+protected:
+    GPUTarget _target; /**< GPU target could be used to call a dedicated heuristic for each GPU IP for a given GPU architecture */
+};
+} // namespace cl_gemm
+} // namespace arm_compute
+#endif /*ARM_COMPUTE_ICLGEMMKERNELSELECTION_H */
diff --git a/arm_compute/runtime/CL/functions/CLGEMM.h b/arm_compute/runtime/CL/functions/CLGEMM.h
index bb620eb6f7..7a4f12043e 100644
--- a/arm_compute/runtime/CL/functions/CLGEMM.h
+++ b/arm_compute/runtime/CL/functions/CLGEMM.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2019 ARM Limited.
+ * Copyright (c) 2016-2020 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -30,6 +30,7 @@
 #include "arm_compute/core/CL/kernels/CLGEMMReshapeLHSMatrixKernel.h"
 #include "arm_compute/core/CL/kernels/CLGEMMReshapeRHSMatrixKernel.h"
 #include "arm_compute/runtime/CL/CLTensor.h"
+#include "arm_compute/runtime/CL/CLTypes.h"
 #include "arm_compute/runtime/IFunction.h"
 #include "arm_compute/runtime/IMemoryManager.h"
 #include "arm_compute/runtime/IWeightsManager.h"
@@ -91,10 +92,10 @@ private:
 /** Basic function to execute GEMM on OpenCL. This function calls the following OpenCL kernels:
  *
  *  -# @ref CLGEMMReshapeLHSMatrixKernel (only if the RESHAPED_V1 is selected by the heuristic model)
- *  -# @ref CLGEMMReshapeRHSMatrixKernel (only if either the RESHAPED_V1 or RESHAPED_ONLY_RHS is selected by the select_gemm_type method())
- *  -# @ref CLGEMMMatrixMultiplyKernel (only if either the NATIVE or RESHAPED_V1 is selected by the select_gemm_type method())
- *  -# @ref CLGEMMMatrixMultiplyReshapedKernel (only if RESHAPED_V1 is selected by the select_gemm_type method())
- *  -# @ref CLGEMMMatrixMultiplyReshapedOnlyRHSKernel (only if RESHAPED_ONLY_RHS is selected by the select_gemm_type method())
+ *  -# @ref CLGEMMReshapeRHSMatrixKernel (only if either the RESHAPED_V1 or RESHAPED_ONLY_RHS is selected by the select_gemm_kernel method())
+ *  -# @ref CLGEMMMatrixMultiplyKernel (only if either the NATIVE or RESHAPED_V1 is selected by the select_gemm_kernel method())
+ *  -# @ref CLGEMMMatrixMultiplyReshapedKernel (only if RESHAPED_V1 is selected by the select_gemm_kernel method())
+ *  -# @ref CLGEMMMatrixMultiplyReshapedOnlyRHSKernel (only if RESHAPED_ONLY_RHS is selected by the select_gemm_kernel method())
  *
  */
 class CLGEMM : public IFunction
@@ -153,25 +154,16 @@ public:
     void prepare() override;
 
 private:
-    enum class GEMMType
-    {
-        NATIVE,
-        RESHAPED_V1,
-        RESHAPED_V2,
-        RESHAPED_ONLY_RHS
-    };
-
-    // TODO (COMPMID-2095)
-    static GEMMType select_gemm_type(unsigned int m, unsigned int n, unsigned int k, DataType data_type, bool reshape_b_only_on_first_run, GPUTarget gpu_target);
+    static CLGEMMKernelType select_gemm_kernel(unsigned int m, unsigned int n, unsigned int k, DataType data_type, bool reshape_b_only_on_first_run);
 
-    void configure_native(const ICLTensor *a, const ICLTensor *b, const ICLTensor *c, ICLTensor *output, float alpha, float beta, const GEMMInfo &gemm_info);
+    void configure_native_v1(const ICLTensor *a, const ICLTensor *b, const ICLTensor *c, ICLTensor *output, float alpha, float beta, const GEMMInfo &gemm_info);
     void configure_reshaped_v1(const ICLTensor *a, const ICLTensor *b, const ICLTensor *c, ICLTensor *output, float alpha, float beta, const GEMMInfo &gemm_info);
-    void configure_reshaped_v2(const ICLTensor *a, const ICLTensor *b, const ICLTensor *c, ICLTensor *output, float alpha, float beta, const GEMMInfo &gemm_info);
+    void configure_reshaped(const ICLTensor *a, const ICLTensor *b, const ICLTensor *c, ICLTensor *output, float alpha, float beta, const GEMMInfo &gemm_info);
     void configure_reshaped_only_rhs(const ICLTensor *a, const ICLTensor *b, const ICLTensor *c, ICLTensor *output, float alpha, float beta, const GEMMInfo &gemm_info);
 
-    static Status validate_native(const ITensorInfo *a, const ITensorInfo *b, const ITensorInfo *c, const ITensorInfo *output, float alpha, float beta, const GEMMInfo &gemm_info);
+    static Status validate_native_v1(const ITensorInfo *a, const ITensorInfo *b, const ITensorInfo *c, const ITensorInfo *output, float alpha, float beta, const GEMMInfo &gemm_info);
     static Status validate_reshaped_v1(const ITensorInfo *a, const ITensorInfo *b, const ITensorInfo *c, const ITensorInfo *output, float alpha, float beta, const GEMMInfo &gemm_info);
-    static Status validate_reshaped_v2(const ITensorInfo *a, const ITensorInfo *b, const ITensorInfo *c, const ITensorInfo *output, float alpha, float beta, const GEMMInfo &gemm_info);
+    static Status validate_reshaped(const ITensorInfo *a, const ITensorInfo *b, const ITensorInfo *c, const ITensorInfo *output, float alpha, float beta, const GEMMInfo &gemm_info);
     static Status validate_reshaped_only_rhs(const ITensorInfo *a, const ITensorInfo *b, const ITensorInfo *c, const ITensorInfo *output, float alpha, float beta, const GEMMInfo &gemm_info);
 
     MemoryGroup                                                  _memory_group;
@@ -187,7 +179,7 @@ private:
     const ICLTensor                                             *_original_b;
     bool                                                         _reshape_b_only_on_first_run;
     bool                                                         _is_prepared;
-    GEMMType                                                     _gemm_type;
+    CLGEMMKernelType                                             _gemm_kernel_type;
 };
 } // namespace arm_compute
 
diff --git a/arm_compute/runtime/CL/gemm/CLGEMMKernelSelection.h b/arm_compute/runtime/CL/gemm/CLGEMMKernelSelection.h
new file mode 100644
index 0000000000..47d787445e
--- /dev/null
+++ b/arm_compute/runtime/CL/gemm/CLGEMMKernelSelection.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2020 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef ARM_COMPUTE_CLGEMMKERNELSELECTION_H
+#define ARM_COMPUTE_CLGEMMKERNELSELECTION_H
+
+#include "arm_compute/runtime/CL/ICLGEMMKernelSelection.h"
+#include "arm_compute/runtime/CL/gemm/CLGEMMKernelSelectionBifrost.h"
+#include "arm_compute/runtime/CL/gemm/CLGEMMKernelSelectionMidgard.h"
+#include "arm_compute/runtime/CL/gemm/CLGEMMKernelSelectionValhall.h"
+
+#include <memory>
+
+namespace arm_compute
+{
+namespace cl_gemm
+{
+/** CLGEMMKernelSelection factory class */
+class CLGEMMKernelSelectionFactory final
+{
+public:
+    /** Static method to select the GEMM kernel accordingly with the GPU target and GEMM's dimensionality
+     *
+     * @param[in] gpu GPU target
+     *
+     * @return CLGEMMKernelSelection class
+     */
+    static std::unique_ptr<ICLGEMMKernelSelection> create(GPUTarget gpu)
+    {
+        switch(get_arch_from_target(gpu))
+        {
+            case GPUTarget::MIDGARD:
+                return support::cpp14::make_unique<CLGEMMKernelSelectionMidgard>(gpu);
+            case GPUTarget::BIFROST:
+                return support::cpp14::make_unique<CLGEMMKernelSelectionBifrost>(gpu);
+            case GPUTarget::VALHALL:
+                return support::cpp14::make_unique<CLGEMMKernelSelectionValhall>(gpu);
+            default:
+                ARM_COMPUTE_ERROR("Not supported GPU target");
+        }
+    }
+};
+} // namespace cl_gemm
+} // namespace arm_compute
+#endif /*ARM_COMPUTE_CLGEMMKERNELSELECTION_H */
diff --git a/arm_compute/runtime/CL/gemm/CLGEMMKernelSelectionBifrost.h b/arm_compute/runtime/CL/gemm/CLGEMMKernelSelectionBifrost.h
new file mode 100644
index 0000000000..94311fb3aa
--- /dev/null
+++ b/arm_compute/runtime/CL/gemm/CLGEMMKernelSelectionBifrost.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2020 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef ARM_COMPUTE_CLGEMMKERNELSELECTIONBIFROST_H
+#define ARM_COMPUTE_CLGEMMKERNELSELECTIONBIFROST_H
+
+#include "arm_compute/runtime/CL/ICLGEMMKernelSelection.h"
+
+namespace arm_compute
+{
+namespace cl_gemm
+{
+/** Bifrost based OpenCL GEMMKernel selection */
+class CLGEMMKernelSelectionBifrost final : public ICLGEMMKernelSelection
+{
+public:
+    /** Constructor
+     *
+     * @param[in] gpu GPU target
+     */
+    CLGEMMKernelSelectionBifrost(GPUTarget gpu);
+
+    // Inherited overridden method
+    CLGEMMKernelType select_kernel(const CLGEMMKernelSelectionParams &params) override;
+
+private:
+    CLGEMMKernelType default_f32(unsigned int m, unsigned int n, unsigned int k, bool is_rhs_constant);
+    CLGEMMKernelType default_f16(unsigned int m, unsigned int n, unsigned int k, bool is_rhs_constant);
+    CLGEMMKernelType default_q8(unsigned int m, unsigned int n, unsigned int k, bool is_rhs_constant);
+};
+} // namespace cl_gemm
+} // namespace arm_compute
+#endif /*ARM_COMPUTE_CLGEMMKERNELSELECTIONBIFROST_H */
diff --git a/arm_compute/runtime/CL/gemm/CLGEMMKernelSelectionMidgard.h b/arm_compute/runtime/CL/gemm/CLGEMMKernelSelectionMidgard.h
new file mode 100644
index 0000000000..c0bc4fc507
--- /dev/null
+++ b/arm_compute/runtime/CL/gemm/CLGEMMKernelSelectionMidgard.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2020 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef ARM_COMPUTE_CLGEMMKERNELSELECTIONMIDGARD_H
+#define ARM_COMPUTE_CLGEMMKERNELSELECTIONMIDGARD_H
+
+#include "arm_compute/runtime/CL/ICLGEMMKernelSelection.h"
+
+namespace arm_compute
+{
+namespace cl_gemm
+{
+/** Midgard based OpenCL GEMMKernel selection */
+class CLGEMMKernelSelectionMidgard final : public ICLGEMMKernelSelection
+{
+public:
+    /** Constructor
+     *
+     * @param[in] gpu GPU target
+     */
+    CLGEMMKernelSelectionMidgard(GPUTarget gpu);
+
+    // Inherited overridden method
+    CLGEMMKernelType select_kernel(const CLGEMMKernelSelectionParams &params) override;
+
+private:
+    CLGEMMKernelType default_f32(unsigned int m, unsigned int n, unsigned int k, bool is_rhs_constant);
+    CLGEMMKernelType default_f16(unsigned int m, unsigned int n, unsigned int k, bool is_rhs_constant);
+    CLGEMMKernelType default_q8(unsigned int m, unsigned int n, unsigned int k, bool is_rhs_constant);
+};
+} // namespace cl_gemm
+} // namespace arm_compute
+#endif /*ARM_COMPUTE_CLGEMMKERNELSELECTIONMIDGARD_H */
diff --git a/arm_compute/runtime/CL/gemm/CLGEMMKernelSelectionValhall.h b/arm_compute/runtime/CL/gemm/CLGEMMKernelSelectionValhall.h
new file mode 100644
index 0000000000..d9006e78f1
--- /dev/null
+++ b/arm_compute/runtime/CL/gemm/CLGEMMKernelSelectionValhall.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2020 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef ARM_COMPUTE_CLGEMMKERNELSELECTIONVALHALL_H
+#define ARM_COMPUTE_CLGEMMKERNELSELECTIONVALHALL_H
+
+#include "arm_compute/runtime/CL/ICLGEMMKernelSelection.h"
+
+namespace arm_compute
+{
+namespace cl_gemm
+{
+/** Valhall based OpenCL GEMMKernel selection */
+class CLGEMMKernelSelectionValhall final : public ICLGEMMKernelSelection
+{
+public:
+    /** Constructor
+     *
+     * @param[in] gpu GPU target
+     */
+    CLGEMMKernelSelectionValhall(GPUTarget gpu);
+
+    // Inherited overridden method
+    CLGEMMKernelType select_kernel(const CLGEMMKernelSelectionParams &params) override;
+
+private:
+    CLGEMMKernelType default_f32(unsigned int m, unsigned int n, unsigned int k, bool is_rhs_constant);
+    CLGEMMKernelType default_f16(unsigned int m, unsigned int n, unsigned int k, bool is_rhs_constant);
+    CLGEMMKernelType default_q8(unsigned int m, unsigned int n, unsigned int k, bool is_rhs_constant);
+};
+} // namespace cl_gemm
+} // namespace arm_compute
+#endif /*ARM_COMPUTE_CLGEMMKERNELSELECTIONVALHALL_H */