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
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
|
/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/hwpf/src/plat/plat_hw_access.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 */
#include <fapi2.H>
#include "hw_access.H"
#include "plat_hw_access.H"
#include "p9_perv_scom_addresses.H"
#include <p9_putRingUtils.H>
namespace fapi2
{
struct restoreOpcgRegisters g_opcgData;
uint64_t decodeScanRegionData(const uint32_t i_ringAddress)
{
uint32_t l_scan_region = (i_ringAddress & 0x0000FFF0) << 13;
uint32_t l_scan_type = 0x00008000 >> (i_ringAddress & 0x0000000F);
// This is special case if encoded type is 0xF
if ( (i_ringAddress & 0x0000000F) == 0xF)
{
l_scan_type = 0x00008000 | (l_scan_type << 12);
}
uint64_t l_value = l_scan_region;
l_value = (l_value << 32) | l_scan_type;
return l_value;
}
ReturnCode getRing_setup(const uint32_t i_ringAddress,
const RingMode i_ringMode)
{
fapi2::ReturnCode l_rc = FAPI2_RC_SUCCESS;
uint64_t l_scanRegion = 0;
uint32_t l_chipletId = i_ringAddress >> 24;
Target<fapi2::TARGET_TYPE_PROC_CHIP> l_proc = plat_getChipTarget();
do
{
l_scanRegion = decodeScanRegionData(i_ringAddress);
if (i_ringMode & fapi2::RING_MODE_SET_PULSE_SL)
{
l_rc = storeOPCGRegData (l_proc, g_opcgData, l_chipletId);
if(l_rc != fapi2::FAPI2_RC_SUCCESS)
{
break;
}
l_rc = setupScanRegionForSetPulse(l_proc, l_scanRegion,
i_ringMode,l_chipletId);
if(l_rc != fapi2::FAPI2_RC_SUCCESS)
{
break;
}
}
else
{
// Set up the scan region for the ring.
l_rc = setupScanRegion(l_proc, l_scanRegion, l_chipletId);
if(l_rc != fapi2::FAPI2_RC_SUCCESS)
{
break;
}
}
// Write a 64 bit value for header.
const uint64_t l_header = 0xa5a5a5a5a5a5a5a5;
uint32_t l_scomAddress = 0x0003E000 | (i_ringAddress & 0xFF000000);
l_rc = fapi2::putScom(l_proc, l_scomAddress, l_header);
if(l_rc != fapi2::FAPI2_RC_SUCCESS)
{
break;
}
}while(0);
return l_rc;
}
ReturnCode getRing_granule_data(const uint32_t i_ringAddress,
uint64_t *o_data,
const uint32_t i_bitShiftValue)
{
fapi2::ReturnCode l_rc = FAPI2_RC_SUCCESS;
uint32_t l_chipletId = i_ringAddress & 0xFF000000;
fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP> l_proc;
uint32_t l_scomAddress = 0x00039000 | i_bitShiftValue;
l_scomAddress |= l_chipletId;
do
{
fapi2::buffer<uint64_t> l_ringData;
l_rc = fapi2::getScom(l_proc, l_scomAddress, l_ringData);
if(l_rc != fapi2::FAPI2_RC_SUCCESS)
{
break;
}
*o_data = l_ringData;
} while(0);
return l_rc;
}
ReturnCode getRing_verifyAndcleanup(const uint32_t i_ringAddress,
const RingMode i_ringMode)
{
fapi2::ReturnCode l_rc = FAPI2_RC_SUCCESS;
uint32_t l_chipletId = i_ringAddress >> 24;
fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP> l_proc;
do
{
// Verify header
uint64_t l_header = 0xa5a5a5a5a5a5a5a5;
l_rc = verifyHeader(l_proc, l_header, l_chipletId,i_ringMode);
if(l_rc != fapi2::FAPI2_RC_SUCCESS)
{
break;
}
l_rc = cleanScanRegionandTypeData(l_proc, l_chipletId);
if(l_rc != fapi2::FAPI2_RC_SUCCESS)
{
break;
}
if (i_ringMode & fapi2::RING_MODE_SET_PULSE_SL)
{
l_rc = restoreOPCGRegData(l_proc, g_opcgData, l_chipletId);
if(l_rc != fapi2::FAPI2_RC_SUCCESS)
{
break;
}
}
}while(0);
return l_rc;
}
uint32_t getscom_abs_wrap(const uint32_t i_addr, uint64_t *o_data)
{
uint32_t l_rc = 0;
FAPI_INF("getScom: address: 0x%08X", i_addr);
l_rc = getscom_abs(i_addr, o_data);
if( PIB_NO_ERROR != l_rc )
{
l_rc = p9_pibErrRetry( i_addr, o_data, l_rc, true);
}
FAPI_INF("getScom: returned rc: 0x%08X, data HI: 0x%08X, "
"data LO: 0x%08X", l_rc, (*o_data >> 32),
static_cast<uint32_t>(*o_data & 0xFFFFFFFF));
return l_rc;
}
uint32_t putscom_abs_wrap(const uint32_t i_addr, uint64_t i_data)
{
uint32_t l_rc = 0;
FAPI_INF("putScom: address: 0x%08X, data HI: 0x%08X, data LO: 0x%08X",
i_addr, (i_data >> 32),
static_cast<uint32_t>(i_data & 0xFFFFFFFF));
l_rc = putscom_abs(i_addr, i_data);
if( PIB_NO_ERROR != l_rc )
{
l_rc = p9_pibErrRetry( i_addr, &i_data, l_rc, false);
}
FAPI_INF("putScom: returned rc: 0x%08X", l_rc);
return l_rc;
}
uint32_t p9_pibErrRetry( const uint32_t i_addr, uint64_t *io_data,
const uint8_t i_pibErr, const bool i_isRead)
{
FAPI_INF("Entering p9_pibErrRetry");
static const uint8_t MAX_RETRIES = 2;
static const uint64_t REG_BIT0 = (uint64_t)(0x1)<<63;
uint8_t l_retryCount = 0;
uint32_t pibErr = i_pibErr;
do
{
// Only retry for parity and timeout errors
if (( i_pibErr != PIB_PARITY_ERROR )
&& ( i_pibErr != PIB_TIMEOUT_ERROR ))
{
break;
}
for(l_retryCount = 0; l_retryCount < MAX_RETRIES; l_retryCount++)
{
// RESET_PCB: Reset all PCB elements outside of the standby domain
pibErr = putscom_abs( PERV_PIB_RESET_REG, REG_BIT0 );
if( pibErr ) break;
// RESET_PCB: clear it again
pibErr = putscom_abs( PERV_PIB_RESET_REG, 0);
if( pibErr ) break;
FAPI_DBG( "*** Retry %i ***", l_retryCount );
if ( i_isRead )
{
pibErr = getscom_abs(i_addr, io_data);
}
else
{
pibErr = putscom_abs(i_addr, *io_data);
}
if( PIB_NO_ERROR == pibErr )
{
FAPI_INF("Read/Write Retry Successful");
break;
}
if ( pibErr != i_pibErr ) break;
}
}while(0);
FAPI_INF("Exiting p9_pibErrRetry");
return pibErr;
}
};
|
