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
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: sbe/sbefw/sbeHostUtils.C $ */
/* */
/* OpenPOWER sbe Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2016 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* 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 */
/*
* @file: ppe/sbe/sbefw/sbeHostUtils.C
*
* @brief This file contains the PSU Access Utility Functions
*
*/
#include "sbetrace.H"
#include "sbe_sp_intf.H"
#include "sbeHostUtils.H"
#include "sbeHostMsg.H"
#include "sbe_host_intf.H"
#include "sbeerrorcodes.H"
#include "assert.h"
///////////////////////////////////////////////////////////////////
// PSU->SBE register access utilities
///////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////
uint32_t sbeReadPsu2SbeMbxReg (uint32_t i_addr,
const uint8_t i_count,
uint64_t *o_pData,
bool i_isFinalRead)
{
#define SBE_FUNC " sbeReadPsu2SbeMbxReg "
SBE_DEBUG(SBE_FUNC"i_count[0x%02X], i_addr=[0x%08X]", i_count, i_addr);
uint32_t l_rc = SBE_SEC_OPERATION_SUCCESSFUL;
uint8_t l_count = 0;
assert((i_count >0 ) && (NULL != o_pData))
assert( (SBE_HOST_PSU_MBOX_REG0 <= i_addr) &&
(SBE_HOST_PSU_MBOX_REG3 >= (i_addr + i_count - 1)) )
while (l_count < i_count)
{
l_rc = getscom_abs ( i_addr,
reinterpret_cast<uint64_t*>(&o_pData[l_count]) );
if (l_rc)
{
// Error while reading from PSU->SBE mbx register
SBE_ERROR(SBE_FUNC"getscom_abs failed,"
"l_rc=[0x%08X], i_addr=[0x%08X]",
l_rc, i_addr);
break;
}
SBE_DEBUG(SBE_FUNC"l_data=[0x%016X]", o_pData[l_count]);
++l_count;
++i_addr;
}
// Set the Ack bit in SBE->PSU DB register
// if the message requires ack and if its a final read operation
if ((i_isFinalRead) && (SBE_SEC_OPERATION_SUCCESSFUL == l_rc))
{
l_rc = sbeAcknowledgeHost();
if (l_rc)
{
SBE_ERROR(SBE_FUNC " Failed to Sent Ack to Host over "
"SBE_SBE2PSU_DOORBELL_SET_BIT1");
}
}
return l_rc;
#undef SBE_FUNC
}
///////////////////////////////////////////////////////////////////
// SBE->PSU register access utilities
///////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////
uint32_t sbeIntrHostUponRespWaiting ()
{
uint32_t l_rc = SBE_SEC_OPERATION_SUCCESSFUL;
// Interrupt the host by setting bit0 in SBE->PSU DB register
// if the caller requested for it.
if (g_sbePsu2SbeCmdReqHdr.flags & SBE_PSU_FLAGS_RESP_REQUIRED)
{
l_rc = sbeSetSbe2PsuDbBitX(SBE_SBE2PSU_DOORBELL_SET_BIT0);
}
return l_rc;
}
///////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////
uint32_t sbeAcknowledgeHost ()
{
uint32_t l_rc = SBE_SEC_OPERATION_SUCCESSFUL;
// Set the Ack bit in SBE->PSU DB register
// if the caller requested for it.
if (g_sbePsu2SbeCmdReqHdr.flags & SBE_PSU_FLAGS_ACK_REQUIRED)
{
l_rc = sbeSetSbe2PsuDbBitX(SBE_SBE2PSU_DOORBELL_SET_BIT1);
}
return l_rc;
}
///////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////
uint32_t sbeWriteSbe2PsuMbxReg (uint32_t i_addr,
const uint64_t *i_pData,
const uint8_t i_count,
bool i_setBit0ToIntrHB)
{
#define SBE_FUNC " sbeWriteSbe2PsuMbxReg "
SBE_DEBUG(SBE_FUNC"i_count[0x%02X], i_addr=[0x%08X]", i_count, i_addr);
uint32_t l_rc = SBE_SEC_OPERATION_SUCCESSFUL;
uint8_t l_count = 0;
assert( (i_count >0 ) && (NULL != i_pData) )
assert( (SBE_HOST_PSU_MBOX_REG4 <= i_addr) &&
(SBE_HOST_PSU_MBOX_REG7 >= (i_addr + i_count - 1)) )
if( g_sbePsu2SbeCmdReqHdr.flags & SBE_PSU_FLAGS_RESP_REQUIRED )
{
while (l_count < i_count)
{
SBE_DEBUG(SBE_FUNC"l_data=[0x%016X]", *(i_pData+l_count));
l_rc = putscom_abs ( i_addr, *(i_pData+l_count) );
if (l_rc)
{
// Error while reading from PSU->SBE mbx register
SBE_ERROR(SBE_FUNC"putscom_abs failed,"
"l_rc=[0x%08X], i_addr=[0x%08X]",
l_rc, i_addr);
break;
}
++l_count;
++i_addr;
}
if( (i_setBit0ToIntrHB) && (SBE_SEC_OPERATION_SUCCESSFUL == l_rc) )
{
// indicate the Host via Bit SBE_SBE2PSU_DOORBELL_SET_BIT0
l_rc = sbeSetSbe2PsuDbBitX(SBE_SBE2PSU_DOORBELL_SET_BIT0);
if(l_rc)
{
SBE_ERROR(SBE_FUNC " Failed to Sent Ack to Host over "
"SBE_SBE2PSU_DOORBELL_SET_BIT0");
}
}
}
return l_rc;
#undef SBE_FUNC
}
|
