COMPMID-2411: Add (logistic and tanh) activation support for QSYMM16 for CL

Change-Id: I8d72490b1cc58563ba7b94664135586bc40e6526
Signed-off-by: Manuel Bottini <manuel.bottini@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1466
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>

1 files changed, 84 insertions, 0 deletions

diff --git a/src/core/CL/cl_kernels/activation_quant_helpers.h b/src/core/CL/cl_kernels/activation_quant_helpers.h
new file mode 100644
index 0000000000..402e7ac41f
--- /dev/null
+++ b/src/core/CL/cl_kernels/activation_quant_helpers.h
@@ -0,0 +1,84 @@
+/*
+ * 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"
+
+#define TYPE VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE)
+
+#if defined(S1_VAL) && !defined(S2_VAL)
+#define S2_VAL S1_VAL
+#endif // defined(S1_VAL) && !defined(S2_VAL)
+#if defined(O1_VAL) && !defined(O2_VAL)
+#define O2_VAL O1_VAL
+#endif // defined(O1_VAL) && !defined(O2_VAL)
+
+// RELU Activation
+inline TYPE relu_op(TYPE x)
+{
+    return max((TYPE)CONST_0, x);
+}
+// Bounded RELU Activation
+inline TYPE brelu_op(TYPE x)
+{
+    return min((TYPE)A_VAL, max(CONST_0, x));
+}
+// Lower Upper Bounded RELU Activation
+inline TYPE lu_brelu_op(TYPE x)
+{
+    return min(max(x, (TYPE)B_VAL), (TYPE)A_VAL);
+}
+
+#define ACTIVATION_OP2(op, x) op##_op(x)
+#define ACTIVATION_OP(op, x) ACTIVATION_OP2(op, x)
+
+#if defined(S1_VAL) && defined(S2_VAL)
+#if defined(O1_VAL) && defined(O2_VAL)
+#define PERFORM_ACTIVATION_QUANT(act, data)                                                       \
+    ({                                                                                            \
+        data = ACTIVATION_OP(act, data);                                                          \
+        \
+        VEC_DATA_TYPE(float, VEC_SIZE)                                                            \
+        fdata = CONVERT(data, VEC_DATA_TYPE(float, VEC_SIZE));                                    \
+        \
+        fdata = round((fdata - (float)O1_VAL) * ((float)S1_VAL / (float)S2_VAL) + (float)O2_VAL); \
+        data  = CONVERT_SAT(fdata, VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE));                           \
+    })
+#else // defined(O1_VAL) && defined(O2_VAL)
+#define PERFORM_ACTIVATION_QUANT(act, data)                             \
+    ({                                                                  \
+        data = ACTIVATION_OP(act, data);                                \
+        \
+        VEC_DATA_TYPE(float, VEC_SIZE)                                  \
+        fdata = CONVERT(data, VEC_DATA_TYPE(float, VEC_SIZE));          \
+        \
+        fdata = round((fdata) * ((float)S1_VAL / (float)S2_VAL));       \
+        data  = CONVERT_SAT(fdata, VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE)); \
+    })
+#endif /* defined(O1_VAL) && defined(O2_VAL) */
+#else  /* defined(S1_VAL) && defined(S2_VAL) */
+#define PERFORM_ACTIVATION_QUANT(act, data) \
+    ({                                      \
+        data = ACTIVATION_OP(act, data);    \
+    })
+#endif /* defined(S1_VAL) && defined(S2_VAL) */
\ No newline at end of file