1 /******************************************************************************
2 * Copyright (c) 2013-2015, Texas Instruments Incorporated - http://www.ti.com/
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
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8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of Texas Instruments Incorporated nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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27 *****************************************************************************/
29 #include "ti_cblas_acc.h"
30 #include "../../ticblas/ticblas.h"
32 #ifdef __cplusplus
33 extern "C" {
34 #endif
35 CBLAS_INDEX __real_cblas_icamax(const int N, const void *X, const int incX) ;
37 #ifdef __cplusplus
38 }
39 extern "C"
40 #endif
41 CBLAS_INDEX cblas_icamax(const int N, const void *X, const int incX)
42 {
44 /* Do an init on first use */
45 if (!ti_cblas_init_done) ti_cblas_init();
46 TI_CBLAS_DEBUG_PRINT("Intercepted call to %s\n", "cblas_icamax");
48 TI_CBLAS_PROFILE_START();
49 /* Dynamic condtional offload to ARM */
50 if ((TI_CBLAS_L1_OFFLOAD == TI_CBLAS_OFFLOAD_NONE)) {
51 TI_CBLAS_DEBUG_PRINT("Executing ARM %s\n", "cblas_icamax");
52 CBLAS_INDEX rval = __real_cblas_icamax(N,X,incX);
53 TI_CBLAS_PROFILE_REPORT(" Entire %s call (ARM) took %8.2f us\n","cblas_icamax", (float) clock_diff);
54 return rval;
55 }
56 /* End ARM offload */
58 /******************************************************************/
59 /* DSP offload WILL be done if control reaches here */
60 TI_CBLAS_DEBUG_PRINT("Offloading to DSP %s\n", "cblas_icamax");
62 /* Lookup kernel pointer from global table */
63 #ifdef __cplusplus
64 Event e;
65 Kernel* __K;
66 #else
67 cl_kernel __K;
68 #endif
69 __K = ti_cblas_get_kernel(TI_CBLAS_CBLAS_ICAMAX_IDX, "ocl_cblas_icamax");
70 #ifdef __cplusplus
71 try
72 #else
73 cl_int err = CL_SUCCESS;
74 #endif
75 {
77 #ifdef __cplusplus
78 __K->setArg(0, N);
79 #else
80 err |= clSetKernelArg(__K, 0, sizeof(N), &N);
81 #endif
82 /* For const arguments we use CL_MEM_USE_READ_ONLY */
84 int size_bufX;
85 size_bufX = 2*(1+(N-1)*abs(incX))*sizeof(float);
86 size_bufX = MAX(size_bufX,1);
88 #ifdef __cplusplus
89 Buffer buf_X(*ti_cblas_ocl_context, CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR, size_bufX, (void *)X);
90 __K->setArg(1, buf_X);
91 #else
92 cl_mem buf_X = clCreateBuffer(ti_cblas_ocl_context, CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR, size_bufX, (void *)X, &err);
93 TI_CBLAS_OCL_CHKERROR("clCreateBuffer",err);
94 err |= clSetKernelArg(__K, 1, sizeof(buf_X), &buf_X);
95 TI_CBLAS_OCL_CHKERROR("clSetKernelArg",err);
96 #endif
98 #ifdef __cplusplus
99 __K->setArg(2, incX);
100 #else
101 err |= clSetKernelArg(__K, 2, sizeof(incX), &incX);
102 #endif
104 /* create a buffer argument to get the return value from the DSP */
105 CBLAS_INDEX retval;
106 #ifdef __cplusplus
107 Buffer buf_retval(*ti_cblas_ocl_context, CL_MEM_READ_WRITE|CL_MEM_USE_HOST_PTR, sizeof(CBLAS_INDEX), &retval);
108 __K->setArg(3, buf_retval);
109 #else
110 cl_mem buf_retval = clCreateBuffer(*ti_cblas_ocl_context, CL_MEM_READ_WRITE|CL_MEM_USE_HOST_PTR, sizeof(CBLAS_INDEX), &retval, &err);
111 TI_CBLAS_OCL_CHKERROR("clCreateBuffer",err);
112 err |= clSetKernelArg(__K, 3, sizeof(buf_retval), &buf_retval);
113 TI_CBLAS_OCL_CHKERROR("clSetKernelArg",err);
114 #endif
116 #ifdef __cplusplus
117 ti_cblas_ocl_Q->enqueueTask(*__K, 0, &e);
118 e.wait();
119 #else
120 cl_event e;
121 err |= clEnqueueTask(ti_cblas_ocl_Q, __K, 0, 0, &e);
122 TI_CBLAS_OCL_CHKERROR("clEnqueueTask",err);
123 err |= clWaitForEvents(1, &e);
124 TI_CBLAS_OCL_CHKERROR("clWaitForEvents",err);
125 err |= clReleaseEvent(e);
126 TI_CBLAS_OCL_CHKERROR("clReleaseEvent",err);
127 #endif
129 ti_cblas_delete_kernel(__K);
131 TI_CBLAS_DEBUG_PRINT("Finished executing %s\n", "cblas_icamax");
132 TI_CBLAS_PROFILE_REPORT(" Entire %s call (DSP) took %8.2f us\n","cblas_icamax", (float) clock_diff);
133 return retval;
134 }
136 #ifdef __cplusplus
137 catch (Error err)
138 {
139 ti_cblas_error(err.what(),err.err());
140 return 0;
141 }
142 #endif
143 }