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annotate TaskManager/kernel/ppe/DmaBuffer.cc @ 818:19c6cdeb23d6

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too few template-parameter-lists
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 23 May 2010 10:55:25 +0900
parents aaaa0baeab89
children
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include "types.h"
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4 #include "DmaBuffer.h"
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5
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6 #define ALIGN_DOWN(v, align) ((v)&(-align))
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7 #define ALIGN_UP(v, align) ALIGN_DOWN((v)+((align)-1), align)
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9
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10 DmaBuffer::DmaBuffer(int size)
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11 {
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12 #ifndef HAS_POSIX_MEMALIGN
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13 buffer[0] = malloc(size);
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14 buffer[1] = malloc(size);
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15 #else
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16 posix_memalign(&buffer[0],64,size);
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17 posix_memalign(&buffer[1],64,size);
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18 #endif
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19 flag = 0;
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20 }
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21
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22 DmaBuffer::~DmaBuffer(void)
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23 {
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24 free(buffer[0]);
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25 free(buffer[1]);
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26 }
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27
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28 void
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29 DmaBuffer::swap_buffer(void)
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30 {
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31 flag ^= 1;
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32 }
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33
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34 void
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35 DmaBuffer::get_buffer(void *_dst)
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36 {
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37 void **dst = (void**)_dst;
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38 *dst = buffer[flag];
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39 }