summaryrefslogtreecommitdiffstats
path: root/src/usr/diag/prdf/common/plat/pegasus/prdfLaneRepair.H
blob: ae6b0d903fe1b6b356e845b09c4fa8432888d245 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
/* IBM_PROLOG_BEGIN_TAG                                                   */
/* This is an automatically generated prolog.                             */
/*                                                                        */
/* $Source: src/usr/diag/prdf/common/plat/pegasus/prdfLaneRepair.H $      */
/*                                                                        */
/* OpenPOWER HostBoot Project                                             */
/*                                                                        */
/* COPYRIGHT International Business Machines Corp. 2013,2014              */
/*                                                                        */
/* Licensed under the Apache License, Version 2.0 (the "License");        */
/* you may not use this file except in compliance with the License.       */
/* You may obtain a copy of the License at                                */
/*                                                                        */
/*     http://www.apache.org/licenses/LICENSE-2.0                         */
/*                                                                        */
/* Unless required by applicable law or agreed to in writing, software    */
/* distributed under the License is distributed on an "AS IS" BASIS,      */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or        */
/* implied. See the License for the specific language governing           */
/* permissions and limitations under the License.                         */
/*                                                                        */
/* IBM_PROLOG_END_TAG                                                     */

#ifndef _PRDFLANEREPAIR_H
#define _PRDFLANEREPAIR_H

/** @file  prdfLaneRepair.H
 *  @brief Common Lane Repair code for Lane Spared, Spares Exceeded, and
 *         Too Many Bus Errors conditions.
 */

#include<iipconst.h>
#include <targeting/common/target.H>

namespace PRDF
{

class ExtensibleChip;
struct STEP_CODE_DATA_STRUCT;

namespace LaneRepair
{
    /**
     * @brief Handles a Lane Repair Event
     * @param i_chip    Chip that detected the lane repair event
     * @param i_busType Bus connection type (X,A, MEMBUF, or MCS)
     * @param i_busPos  Bus position
     * @param i_sc      The step code data struct.
     * @param i_spareDeployed  True if FIR bit indicates a spare was deployed
     * @return  Non-SUCCESS if an internal function fails, SUCCESS otherwise.
     */
    int32_t handleLaneRepairEvent (ExtensibleChip * i_chip,
                                   TARGETING::TYPE i_busType,
                                   uint32_t i_busPos,
                                   STEP_CODE_DATA_STRUCT & i_sc,
                                   bool i_spareDeployed);

    // Utility functions for secondary FIR bits

    /**
     * @brief clean up secondary FIR bits ( MBI/MCIFIR bit 10 )
     * @param i_chip    Chip that detected the lane repair event
     * @param i_busType Bus connection type (X,A, MEMBUF, or MCS)
     * @param i_busPos  Bus position
     * @note  This will only clear FIR bits if spare deploy attention is present
     *        on DMI bus. It does not check for spare deployed  attention type
     *        Calling fucntion should make ensure that.
     * @return  Non-SUCCESS if an internal function fails, SUCCESS otherwise.
     */
    int32_t cleanupSecondaryFirBits(  ExtensibleChip * i_chip,
                       TARGETING::TYPE i_busType,
                       uint32_t i_busPos );

    /**
     * @brief Checks if spare bit is set for DMI Bus.
     * @param i_mcsChip    MCS chip.
     * @param i_mbChip    Membuf chip.
     * @return  True if spare bit is set false otherwise.
     * @note This function will check both ends of DMI bus to check
     *       if spare deployed attention is raised on any side.
     */
    bool isSpareBitOnDMIBus( ExtensibleChip * i_mcsChip,
                             ExtensibleChip * i_mbChip );

} // end namespace LaneRepair
} // end namespace PRDF

#endif /* _PRDFLANEREPAIR_H */
OpenPOWER on IntegriCloud