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:
7 * * Redistributions of source code must retain the above copyright
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
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
26 * THE POSSIBILITY OF SUCH DAMAGE.
27 *****************************************************************************/
29 #include "ti_cblas.h"
31 #ifdef __cplusplus
32 extern "C" {
33 #endif
34 float __real_cblas_sdot(const int N, const float *X, const int incX, const float *Y, const int incY) ;
36 #ifdef __cplusplus
37 }
38 extern "C"
39 #endif
40 float cblas_sdot(const int N, const float *X, const int incX, const float *Y, const int incY)
41 {
43 /* Do an init on first use */
44 if (!ti_cblas_init_done) ti_cblas_init();
45 TI_CBLAS_DEBUG_PRINT("Intercepted call to %s\n", "cblas_sdot");
47 TI_CBLAS_PROFILE_START();
48 /* Dynamic condtional offload to ARM */
49 if ((TI_CBLAS_L1_OFFLOAD == TI_CBLAS_OFFLOAD_NONE)) {
50 TI_CBLAS_DEBUG_PRINT("Executing ARM %s\n", "cblas_sdot");
51 float rval = __real_cblas_sdot(N,X,incX,Y,incY);
52 TI_CBLAS_PROFILE_REPORT(" Entire %s call (ARM) took %8.2f us\n","cblas_sdot", (float) clock_diff);
53 return rval;
54 }
55 /* End ARM offload */
57 /******************************************************************/
58 /* DSP offload WILL be done if control reaches here */
59 TI_CBLAS_DEBUG_PRINT("Offloading to DSP %s\n", "cblas_sdot");
61 /* Lookup kernel pointer from global table */
62 #ifdef __cplusplus
63 Event e;
64 Kernel* __K;
65 #else
66 cl_kernel __K;
67 #endif
68 __K = ti_cblas_get_kernel(TI_CBLAS_CBLAS_SDOT_IDX, "ocl_cblas_sdot");
69 #ifdef __cplusplus
70 try
71 #else
72 cl_int err = CL_SUCCESS;
73 #endif
74 {
76 #ifdef __cplusplus
77 __K->setArg(0, N);
78 #else
79 err |= clSetKernelArg(__K, 0, sizeof(N), &N);
80 #endif
81 /* For const arguments we use CL_MEM_USE_READ_ONLY */
83 int size_bufX;
84 size_bufX = (1+(N-1)*abs(incX))*sizeof(float);
85 size_bufX = MAX(size_bufX,1);
87 #ifdef __cplusplus
88 Buffer buf_X(*ti_cblas_ocl_context, CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR, size_bufX, (void *)X);
89 __K->setArg(1, buf_X);
90 #else
91 cl_mem buf_X = clCreateBuffer(ti_cblas_ocl_context, CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR, size_bufX, (void *)X, &err);
92 TI_CBLAS_OCL_CHKERROR("clCreateBuffer",err);
93 err |= clSetKernelArg(__K, 1, sizeof(buf_X), &buf_X);
94 TI_CBLAS_OCL_CHKERROR("clSetKernelArg",err);
95 #endif
97 #ifdef __cplusplus
98 __K->setArg(2, incX);
99 #else
100 err |= clSetKernelArg(__K, 2, sizeof(incX), &incX);
101 #endif
102 /* For const arguments we use CL_MEM_USE_READ_ONLY */
104 int size_bufY;
105 size_bufY = (1+(N-1)*abs(incY))*sizeof(float);
106 size_bufY = MAX(size_bufY,1);
108 #ifdef __cplusplus
109 Buffer buf_Y(*ti_cblas_ocl_context, CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR, size_bufY, (void *)Y);
110 __K->setArg(3, buf_Y);
111 #else
112 cl_mem buf_Y = clCreateBuffer(ti_cblas_ocl_context, CL_MEM_READ_ONLY|CL_MEM_USE_HOST_PTR, size_bufY, (void *)Y, &err);
113 TI_CBLAS_OCL_CHKERROR("clCreateBuffer",err);
114 err |= clSetKernelArg(__K, 3, sizeof(buf_Y), &buf_Y);
115 TI_CBLAS_OCL_CHKERROR("clSetKernelArg",err);
116 #endif
118 #ifdef __cplusplus
119 __K->setArg(4, incY);
120 #else
121 err |= clSetKernelArg(__K, 4, sizeof(incY), &incY);
122 #endif
124 /* create a buffer argument to get the return value from the DSP */
125 float retval;
126 #ifdef __cplusplus
127 Buffer buf_retval(*ti_cblas_ocl_context, CL_MEM_READ_WRITE|CL_MEM_USE_HOST_PTR, sizeof(float), &retval);
128 __K->setArg(5, buf_retval);
129 #else
130 cl_mem buf_retval = clCreateBuffer(ti_cblas_ocl_context, CL_MEM_READ_WRITE|CL_MEM_USE_HOST_PTR, sizeof(float), &retval, &err);
131 TI_CBLAS_OCL_CHKERROR("clCreateBuffer",err);
132 err |= clSetKernelArg(__K, 5, sizeof(buf_retval), &buf_retval);
133 TI_CBLAS_OCL_CHKERROR("clSetKernelArg",err);
134 #endif
136 #ifdef __cplusplus
137 ti_cblas_ocl_Q->enqueueTask(*__K, 0, &e);
138 e.wait();
139 #else
140 cl_event e;
141 err |= clEnqueueTask(ti_cblas_ocl_Q, __K, 0, 0, &e);
142 TI_CBLAS_OCL_CHKERROR("clEnqueueTask",err);
143 err |= clWaitForEvents(1, &e);
144 TI_CBLAS_OCL_CHKERROR("clWaitForEvents",err);
145 err |= clReleaseEvent(e);
146 TI_CBLAS_OCL_CHKERROR("clReleaseEvent",err);
148 #endif
150 ti_cblas_delete_kernel(__K);
152 TI_CBLAS_DEBUG_PRINT("Finished executing %s\n", "cblas_sdot");
153 TI_CBLAS_PROFILE_REPORT(" Entire %s call (DSP) took %8.2f us\n","cblas_sdot", (float) clock_diff);
154 return retval;
155 }
157 #ifdef __cplusplus
158 catch (Error err)
159 {
160 ti_cblas_error(err.what(),err.err());
161 return 0;
162 }
163 #endif
164 }