source: SVN/rincon/u-boot/cpu/ixp/npe/include/IxQMgrDispatcher_p.h @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

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Signed-off-by: Tim Harvey <tharvey@…>

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1/**
2 * @file    IxQMgrDispatcher_p.h
3 *
4 * @author Intel Corporation
5 * @date    07-Feb-2002
6 *
7 * @brief   This file contains the internal functions for dispatcher
8 *
9 *
10 * @par
11 * IXP400 SW Release version 2.0
12 *
13 * -- Copyright Notice --
14 *
15 * @par
16 * Copyright 2001-2005, Intel Corporation.
17 * All rights reserved.
18 *
19 * @par
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
22 * are met:
23 * 1. Redistributions of source code must retain the above copyright
24 *    notice, this list of conditions and the following disclaimer.
25 * 2. Redistributions in binary form must reproduce the above copyright
26 *    notice, this list of conditions and the following disclaimer in the
27 *    documentation and/or other materials provided with the distribution.
28 * 3. Neither the name of the Intel Corporation nor the names of its contributors
29 *    may be used to endorse or promote products derived from this software
30 *    without specific prior written permission.
31 *
32 * @par
33 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
34 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
35 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
36 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
37 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
38 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
39 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
41 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
42 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43 * SUCH DAMAGE.
44 *
45 * @par
46 * -- End of Copyright Notice --
47*/
48
49#ifndef IXQMGRDISPATCHER_P_H
50#define IXQMGRDISPATCHER_P_H
51
52/*
53 * User defined include files
54 */
55#include "IxQMgr.h"
56
57/*
58 * This structure defines the statistic data for a queue
59 */
60typedef struct
61{
62    unsigned callbackCnt;       /* Call count of callback                    */
63    unsigned priorityChangeCnt; /* Priority change count                     */
64    unsigned intNoCallbackCnt;  /* Interrupt fired but no callback set count */
65    unsigned intLostCallbackCnt;  /* Interrupt lost and detected ;  SCR541   */
66    BOOL notificationEnabled;    /* Interrupt enabled for this queue         */
67    IxQMgrSourceId srcSel;       /* interrupt source                         */
68    unsigned enableCount;        /* num times notif enabled by LLP           */
69    unsigned disableCount;       /* num of times notif disabled by LLP       */
70} IxQMgrDispatcherQStats;
71
72/*
73 * This structure defines statistic data for the disatcher
74 */
75typedef struct
76 {
77    unsigned loopRunCnt;       /* ixQMgrDispatcherLoopRun count */
78
79    IxQMgrDispatcherQStats queueStats[IX_QMGR_MAX_NUM_QUEUES];
80
81} IxQMgrDispatcherStats;
82
83/*
84 * Initialise the dispatcher component
85 */
86void
87ixQMgrDispatcherInit (void);
88
89/*
90 * Get the dispatcher statistics
91 */
92IxQMgrDispatcherStats*
93ixQMgrDispatcherStatsGet (void);
94
95/**
96 * Retrieve the number of leading zero bits starting from the MSB
97 * This function is implemented as an (extremely fast) asm routine
98 * for XSCALE processor (see clz instruction) and as a (slower) C
99 * function for other systems.
100 */
101unsigned int
102ixQMgrCountLeadingZeros(unsigned int value);
103
104#endif/*IXQMGRDISPATCHER_P_H*/
105
106
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