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
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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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 void __real_cblas_cswap(const int N, void *X, const int incX, void *Y, const int incY) ;
37 #ifdef __cplusplus
38 }
39 extern "C"
40 #endif
41 void cblas_cswap(const int N, void *X, const int incX, void *Y, const int incY)
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_cswap");
48 /* OpenCL cannot deal with overlapping memory regions. This is an issue when you
49 * are trying to swap two rows of a matrix, where the matrix is column major. Hence,
50 * the offload of this routine to the DSP is disabled.
51 */
52 #ifndef TI_CBLAS_SWAP_ENABLE_OFFLOAD
53 TI_CBLAS_PROFILE_START();
54 TI_CBLAS_DEBUG_PRINT("Executing ARM %s\n", "cblas_cswap");
55 __real_cblas_cswap(N,X,incX,Y,incY);
56 TI_CBLAS_PROFILE_REPORT(" Entire %s call (ARM) took %8.2f us\n","cblas_cswap", (float) clock_diff);
57 return ;
58 #else
60 TI_CBLAS_PROFILE_START();
61 /* Dynamic condtional offload to ARM */
62 if ((TI_CBLAS_L1_OFFLOAD == TI_CBLAS_OFFLOAD_NONE)) {
63 TI_CBLAS_DEBUG_PRINT("Executing ARM %s\n", "cblas_cswap");
64 __real_cblas_cswap(N,X,incX,Y,incY);
65 TI_CBLAS_PROFILE_REPORT(" Entire %s call (ARM) took %8.2f us\n","cblas_cswap", (float) clock_diff);
66 return ;
67 }
68 /* End ARM offload */
70 /******************************************************************/
71 /* DSP offload WILL be done if control reaches here */
72 TI_CBLAS_DEBUG_PRINT("Offloading to DSP %s\n", "cblas_cswap");
74 /* Lookup kernel pointer from global table */
75 #ifdef __cplusplus
76 Event e;
77 Kernel* __K;
78 #else
79 cl_kernel __K;
80 #endif
81 __K = ti_cblas_get_kernel(TI_CBLAS_CBLAS_CSWAP_IDX, "ocl_cblas_cswap");
83 #ifdef __cplusplus
84 try
85 #else
86 cl_int err = CL_SUCCESS;
87 #endif
88 {
90 #ifdef __cplusplus
91 __K->setArg(0, N);
92 #else
93 err |= clSetKernelArg(__K, 0, sizeof(N), &N);
94 #endif
96 int size_bufX;
97 size_bufX = 2*(1+(N-1)*abs(incX))*sizeof(float);
98 size_bufX = MAX(size_bufX,1);
100 #ifdef __cplusplus
101 Buffer buf_X(*ti_cblas_ocl_context, CL_MEM_READ_WRITE|CL_MEM_USE_HOST_PTR, size_bufX, (void *)X);
102 __K->setArg(1, buf_X);
103 #else
104 cl_mem buf_X = clCreateBuffer(ti_cblas_ocl_context, CL_MEM_READ_WRITE|CL_MEM_USE_HOST_PTR, size_bufX, (void *)X, &err);
105 TI_CBLAS_OCL_CHKERROR("clCreateBuffer",err);
106 err |= clSetKernelArg(__K, 1, sizeof(buf_X), &buf_X);
107 TI_CBLAS_OCL_CHKERROR("clSetKernelArg",err);
108 #endif
110 #ifdef __cplusplus
111 __K->setArg(2, incX);
112 #else
113 err |= clSetKernelArg(__K, 2, sizeof(incX), &incX);
114 #endif
116 int size_bufY;
117 size_bufY = 2*(1+(N-1)*abs(incY))*sizeof(float);
118 size_bufY = MAX(size_bufY,1);
120 #ifdef __cplusplus
121 Buffer buf_Y(*ti_cblas_ocl_context, CL_MEM_READ_WRITE|CL_MEM_USE_HOST_PTR, size_bufY, (void *)Y);
122 __K->setArg(3, buf_Y);
123 #else
124 cl_mem buf_Y = clCreateBuffer(ti_cblas_ocl_context, CL_MEM_READ_WRITE|CL_MEM_USE_HOST_PTR, size_bufY, (void *)Y, &err);
125 TI_CBLAS_OCL_CHKERROR("clCreateBuffer",err);
126 err |= clSetKernelArg(__K, 3, sizeof(buf_Y), &buf_Y);
127 TI_CBLAS_OCL_CHKERROR("clSetKernelArg",err);
128 #endif
130 #ifdef __cplusplus
131 __K->setArg(4, incY);
132 #else
133 err |= clSetKernelArg(__K, 4, sizeof(incY), &incY);
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);
147 #endif
149 ti_cblas_delete_kernel(__K);
151 TI_CBLAS_DEBUG_PRINT("Finished executing %s\n", "cblas_cswap");
152 TI_CBLAS_PROFILE_REPORT(" Entire %s call (DSP) took %8.2f us\n","cblas_cswap", (float) clock_diff);
153 return ;
154 }
156 #ifdef __cplusplus
157 catch (Error err)
158 {
159 ti_cblas_error(err.what(),err.err());
160 return ;
161 }
162 #endif
163 #endif //TI_CBLAS_SWAP_ENABLE_OFFLOAD
164 }