From e2428a013014feac81af60f65f9b16cc244327aa Mon Sep 17 00:00:00 2001 From: Usama Arif Date: Thu, 9 May 2019 11:03:17 +0100 Subject: COMPMID-2194: Refactor activation function macro in OpenCL. New Macros for activation. This commit contains the new macros for activation. Only the activation_layer utilizes the new macros in this commit. Change-Id: I2fa8567cc876e8cb67a1e876652bc348b7ed23ea Signed-off-by: Usama Arif Reviewed-on: https://review.mlplatform.org/c/1104 Comments-Addressed: Arm Jenkins Reviewed-by: Gian Marco Iodice Tested-by: Arm Jenkins --- src/core/CL/cl_kernels/activation_float_helpers.h | 70 +++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 src/core/CL/cl_kernels/activation_float_helpers.h (limited to 'src/core/CL/cl_kernels/activation_float_helpers.h') diff --git a/src/core/CL/cl_kernels/activation_float_helpers.h b/src/core/CL/cl_kernels/activation_float_helpers.h new file mode 100644 index 0000000000..fefbcab5df --- /dev/null +++ b/src/core/CL/cl_kernels/activation_float_helpers.h @@ -0,0 +1,70 @@ +/* + * Copyright (c) 2019 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. + */ + +#include "helpers.h" + +#if GPU_ARCH == GPU_ARCH_BIFROST +#define MLA(a, b, c) (fma(c, b, a)) +#else // GPU_ARCH == GPU_ARCH_BIFROST +#define MLA(a, b, c) ((b) * (c) + (a)) +#endif // GPU_ARCH == GPU_ARCH_BIFROST +// Logistic Activation +#define logistic_op(DATA_TYPE, x, A_VAL, B_VAL) ((DATA_TYPE)1.0 / ((DATA_TYPE)1.0 + exp(-x))) + +// Hyperbolic Tangent Activation +#define tanh_op(DATA_TYPE, x, A_VAL, B_VAL) ((DATA_TYPE)A_VAL * tanh((DATA_TYPE)B_VAL * x)) + +// RELU Tangent Activation +#define relu_op(DATA_TYPE, x, A_VAL, B_VAL) (max((DATA_TYPE)0.0, x)) + +// Bounded RELU Activation +#define brelu_op(DATA_TYPE, x, A_VAL, B_VAL) (min((DATA_TYPE)A_VAL, max((DATA_TYPE)0.0, x))) + +// Lower Upper Bounded RELU Activation +#define lu_brelu_op(DATA_TYPE, x, A_VAL, B_VAL) (min(max(x, (DATA_TYPE)B_VAL), (DATA_TYPE)A_VAL)) + +// Leaky RELU Activation +#define lrelu_op(DATA_TYPE, x, A_VAL, B_VAL) ((min(x, (DATA_TYPE)0.0) * (DATA_TYPE)A_VAL) + max(x, (DATA_TYPE)0.0)) + +// Soft RELU Activation +#define srelu_op(DATA_TYPE, x, A_VAL, B_VAL) (log((DATA_TYPE)1.0 + exp(x))) + +// Absolute Activation +#define abs_op(DATA_TYPE, x, A_VAL, B_VAL) (fabs(x)) + +// Square Activation +#define square_op(DATA_TYPE, x, A_VAL, B_VAL) (x * x) + +// Square-root Activation +#define sqrt_op(DATA_TYPE, x, A_VAL, B_VAL) (sqrt(x)) + +// Linear Activation +#define linear_op(DATA_TYPE, x, A_VAL, B_VAL) (MLA((DATA_TYPE)B_VAL, (DATA_TYPE)A_VAL, x)) + +// Identity Activation +#define _op(DATA_TYPE, x, A_VAL, B_VAL) (x) + +#define OP(op, DATA_TYPE, x, A_VAL, B_VAL) op##_op(x, DATA_TYPE, A_VAL, B_VAL) + +#define ACTIVATION(op, DATA_TYPE, x, A_VAL, B_VAL) OP(op, x, DATA_TYPE, A_VAL, B_VAL) -- cgit v1.2.1