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Commit 2bad742388d23c15f2cb355bb992046e30065a11

Authored by Anton Blanchard
Committed by Benjamin Herrenschmidt
1 parent 4966bfa1b3
Exists in master and in 13 other branches dlt-processor-sdk-linux-03.00.00.04, processor-sdk-linux-02.00.01, smarc-ti-linux-3.15.y, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-04.01.00.06, smarct3x-processor-sdk-linux-02.00.01, smarct3x-processor-sdk-linux-03.00.00.04, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-04.01.00.06, smarct4x-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-03.00.00.04, ti-linux-3.15.y, ti-lsk-linux-4.1.y

powerpc/powernv: Use uint64_t instead of size_t in OPAL APIs 

Using size_t in our APIs is asking for trouble, especially
when some OPAL calls use size_t pointers.

Signed-off-by: Anton Blanchard <anton@samba.org>
Reviewed-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

Showing 2 changed files with 7 additions and 7 deletions Inline Diff

arch/powerpc/include/asm/opal.h
Diff comments   View file @ 2bad742
1 /* 1 /*
2 * PowerNV OPAL definitions. 2 * PowerNV OPAL definitions.
3 * 3 *
4 * Copyright 2011 IBM Corp. 4 * Copyright 2011 IBM Corp.
5 * 5 *
6 * This program is free software; you can redistribute it and/or 6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License 7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version. 9 * 2 of the License, or (at your option) any later version.
10 */ 10 */
11 11
12 #ifndef __OPAL_H 12 #ifndef __OPAL_H
13 #define __OPAL_H 13 #define __OPAL_H
14 14
15 /****** Takeover interface ********/ 15 /****** Takeover interface ********/
16 16
17 /* PAPR H-Call used to querty the HAL existence and/or instanciate 17 /* PAPR H-Call used to querty the HAL existence and/or instanciate
18 * it from within pHyp (tech preview only). 18 * it from within pHyp (tech preview only).
19 * 19 *
20 * This is exclusively used in prom_init.c 20 * This is exclusively used in prom_init.c
21 */ 21 */
22 22
23 #ifndef __ASSEMBLY__ 23 #ifndef __ASSEMBLY__
24 24
25 struct opal_takeover_args { 25 struct opal_takeover_args {
26 u64 k_image; /* r4 */ 26 u64 k_image; /* r4 */
27 u64 k_size; /* r5 */ 27 u64 k_size; /* r5 */
28 u64 k_entry; /* r6 */ 28 u64 k_entry; /* r6 */
29 u64 k_entry2; /* r7 */ 29 u64 k_entry2; /* r7 */
30 u64 hal_addr; /* r8 */ 30 u64 hal_addr; /* r8 */
31 u64 rd_image; /* r9 */ 31 u64 rd_image; /* r9 */
32 u64 rd_size; /* r10 */ 32 u64 rd_size; /* r10 */
33 u64 rd_loc; /* r11 */ 33 u64 rd_loc; /* r11 */
34 }; 34 };
35 35
36 /* 36 /*
37 * SG entry 37 * SG entry
38 * 38 *
39 * WARNING: The current implementation requires each entry 39 * WARNING: The current implementation requires each entry
40 * to represent a block that is 4k aligned *and* each block 40 * to represent a block that is 4k aligned *and* each block
41 * size except the last one in the list to be as well. 41 * size except the last one in the list to be as well.
42 */ 42 */
43 struct opal_sg_entry { 43 struct opal_sg_entry {
44 void *data; 44 void *data;
45 long length; 45 long length;
46 }; 46 };
47 47
48 /* sg list */ 48 /* sg list */
49 struct opal_sg_list { 49 struct opal_sg_list {
50 unsigned long num_entries; 50 unsigned long num_entries;
51 struct opal_sg_list *next; 51 struct opal_sg_list *next;
52 struct opal_sg_entry entry[]; 52 struct opal_sg_entry entry[];
53 }; 53 };
54 54
55 /* We calculate number of sg entries based on PAGE_SIZE */ 55 /* We calculate number of sg entries based on PAGE_SIZE */
56 #define SG_ENTRIES_PER_NODE ((PAGE_SIZE - 16) / sizeof(struct opal_sg_entry)) 56 #define SG_ENTRIES_PER_NODE ((PAGE_SIZE - 16) / sizeof(struct opal_sg_entry))
57 57
58 extern long opal_query_takeover(u64 *hal_size, u64 *hal_align); 58 extern long opal_query_takeover(u64 *hal_size, u64 *hal_align);
59 59
60 extern long opal_do_takeover(struct opal_takeover_args *args); 60 extern long opal_do_takeover(struct opal_takeover_args *args);
61 61
62 struct rtas_args; 62 struct rtas_args;
63 extern int opal_enter_rtas(struct rtas_args *args, 63 extern int opal_enter_rtas(struct rtas_args *args,
64 unsigned long data, 64 unsigned long data,
65 unsigned long entry); 65 unsigned long entry);
66 66
67 #endif /* __ASSEMBLY__ */ 67 #endif /* __ASSEMBLY__ */
68 68
69 /****** OPAL APIs ******/ 69 /****** OPAL APIs ******/
70 70
71 /* Return codes */ 71 /* Return codes */
72 #define OPAL_SUCCESS 0 72 #define OPAL_SUCCESS 0
73 #define OPAL_PARAMETER -1 73 #define OPAL_PARAMETER -1
74 #define OPAL_BUSY -2 74 #define OPAL_BUSY -2
75 #define OPAL_PARTIAL -3 75 #define OPAL_PARTIAL -3
76 #define OPAL_CONSTRAINED -4 76 #define OPAL_CONSTRAINED -4
77 #define OPAL_CLOSED -5 77 #define OPAL_CLOSED -5
78 #define OPAL_HARDWARE -6 78 #define OPAL_HARDWARE -6
79 #define OPAL_UNSUPPORTED -7 79 #define OPAL_UNSUPPORTED -7
80 #define OPAL_PERMISSION -8 80 #define OPAL_PERMISSION -8
81 #define OPAL_NO_MEM -9 81 #define OPAL_NO_MEM -9
82 #define OPAL_RESOURCE -10 82 #define OPAL_RESOURCE -10
83 #define OPAL_INTERNAL_ERROR -11 83 #define OPAL_INTERNAL_ERROR -11
84 #define OPAL_BUSY_EVENT -12 84 #define OPAL_BUSY_EVENT -12
85 #define OPAL_HARDWARE_FROZEN -13 85 #define OPAL_HARDWARE_FROZEN -13
86 #define OPAL_WRONG_STATE -14 86 #define OPAL_WRONG_STATE -14
87 #define OPAL_ASYNC_COMPLETION -15 87 #define OPAL_ASYNC_COMPLETION -15
88 88
89 /* API Tokens (in r0) */ 89 /* API Tokens (in r0) */
90 #define OPAL_INVALID_CALL -1 90 #define OPAL_INVALID_CALL -1
91 #define OPAL_CONSOLE_WRITE 1 91 #define OPAL_CONSOLE_WRITE 1
92 #define OPAL_CONSOLE_READ 2 92 #define OPAL_CONSOLE_READ 2
93 #define OPAL_RTC_READ 3 93 #define OPAL_RTC_READ 3
94 #define OPAL_RTC_WRITE 4 94 #define OPAL_RTC_WRITE 4
95 #define OPAL_CEC_POWER_DOWN 5 95 #define OPAL_CEC_POWER_DOWN 5
96 #define OPAL_CEC_REBOOT 6 96 #define OPAL_CEC_REBOOT 6
97 #define OPAL_READ_NVRAM 7 97 #define OPAL_READ_NVRAM 7
98 #define OPAL_WRITE_NVRAM 8 98 #define OPAL_WRITE_NVRAM 8
99 #define OPAL_HANDLE_INTERRUPT 9 99 #define OPAL_HANDLE_INTERRUPT 9
100 #define OPAL_POLL_EVENTS 10 100 #define OPAL_POLL_EVENTS 10
101 #define OPAL_PCI_SET_HUB_TCE_MEMORY 11 101 #define OPAL_PCI_SET_HUB_TCE_MEMORY 11
102 #define OPAL_PCI_SET_PHB_TCE_MEMORY 12 102 #define OPAL_PCI_SET_PHB_TCE_MEMORY 12
103 #define OPAL_PCI_CONFIG_READ_BYTE 13 103 #define OPAL_PCI_CONFIG_READ_BYTE 13
104 #define OPAL_PCI_CONFIG_READ_HALF_WORD 14 104 #define OPAL_PCI_CONFIG_READ_HALF_WORD 14
105 #define OPAL_PCI_CONFIG_READ_WORD 15 105 #define OPAL_PCI_CONFIG_READ_WORD 15
106 #define OPAL_PCI_CONFIG_WRITE_BYTE 16 106 #define OPAL_PCI_CONFIG_WRITE_BYTE 16
107 #define OPAL_PCI_CONFIG_WRITE_HALF_WORD 17 107 #define OPAL_PCI_CONFIG_WRITE_HALF_WORD 17
108 #define OPAL_PCI_CONFIG_WRITE_WORD 18 108 #define OPAL_PCI_CONFIG_WRITE_WORD 18
109 #define OPAL_SET_XIVE 19 109 #define OPAL_SET_XIVE 19
110 #define OPAL_GET_XIVE 20 110 #define OPAL_GET_XIVE 20
111 #define OPAL_GET_COMPLETION_TOKEN_STATUS 21 /* obsolete */ 111 #define OPAL_GET_COMPLETION_TOKEN_STATUS 21 /* obsolete */
112 #define OPAL_REGISTER_OPAL_EXCEPTION_HANDLER 22 112 #define OPAL_REGISTER_OPAL_EXCEPTION_HANDLER 22
113 #define OPAL_PCI_EEH_FREEZE_STATUS 23 113 #define OPAL_PCI_EEH_FREEZE_STATUS 23
114 #define OPAL_PCI_SHPC 24 114 #define OPAL_PCI_SHPC 24
115 #define OPAL_CONSOLE_WRITE_BUFFER_SPACE 25 115 #define OPAL_CONSOLE_WRITE_BUFFER_SPACE 25
116 #define OPAL_PCI_EEH_FREEZE_CLEAR 26 116 #define OPAL_PCI_EEH_FREEZE_CLEAR 26
117 #define OPAL_PCI_PHB_MMIO_ENABLE 27 117 #define OPAL_PCI_PHB_MMIO_ENABLE 27
118 #define OPAL_PCI_SET_PHB_MEM_WINDOW 28 118 #define OPAL_PCI_SET_PHB_MEM_WINDOW 28
119 #define OPAL_PCI_MAP_PE_MMIO_WINDOW 29 119 #define OPAL_PCI_MAP_PE_MMIO_WINDOW 29
120 #define OPAL_PCI_SET_PHB_TABLE_MEMORY 30 120 #define OPAL_PCI_SET_PHB_TABLE_MEMORY 30
121 #define OPAL_PCI_SET_PE 31 121 #define OPAL_PCI_SET_PE 31
122 #define OPAL_PCI_SET_PELTV 32 122 #define OPAL_PCI_SET_PELTV 32
123 #define OPAL_PCI_SET_MVE 33 123 #define OPAL_PCI_SET_MVE 33
124 #define OPAL_PCI_SET_MVE_ENABLE 34 124 #define OPAL_PCI_SET_MVE_ENABLE 34
125 #define OPAL_PCI_GET_XIVE_REISSUE 35 125 #define OPAL_PCI_GET_XIVE_REISSUE 35
126 #define OPAL_PCI_SET_XIVE_REISSUE 36 126 #define OPAL_PCI_SET_XIVE_REISSUE 36
127 #define OPAL_PCI_SET_XIVE_PE 37 127 #define OPAL_PCI_SET_XIVE_PE 37
128 #define OPAL_GET_XIVE_SOURCE 38 128 #define OPAL_GET_XIVE_SOURCE 38
129 #define OPAL_GET_MSI_32 39 129 #define OPAL_GET_MSI_32 39
130 #define OPAL_GET_MSI_64 40 130 #define OPAL_GET_MSI_64 40
131 #define OPAL_START_CPU 41 131 #define OPAL_START_CPU 41
132 #define OPAL_QUERY_CPU_STATUS 42 132 #define OPAL_QUERY_CPU_STATUS 42
133 #define OPAL_WRITE_OPPANEL 43 133 #define OPAL_WRITE_OPPANEL 43
134 #define OPAL_PCI_MAP_PE_DMA_WINDOW 44 134 #define OPAL_PCI_MAP_PE_DMA_WINDOW 44
135 #define OPAL_PCI_MAP_PE_DMA_WINDOW_REAL 45 135 #define OPAL_PCI_MAP_PE_DMA_WINDOW_REAL 45
136 #define OPAL_PCI_RESET 49 136 #define OPAL_PCI_RESET 49
137 #define OPAL_PCI_GET_HUB_DIAG_DATA 50 137 #define OPAL_PCI_GET_HUB_DIAG_DATA 50
138 #define OPAL_PCI_GET_PHB_DIAG_DATA 51 138 #define OPAL_PCI_GET_PHB_DIAG_DATA 51
139 #define OPAL_PCI_FENCE_PHB 52 139 #define OPAL_PCI_FENCE_PHB 52
140 #define OPAL_PCI_REINIT 53 140 #define OPAL_PCI_REINIT 53
141 #define OPAL_PCI_MASK_PE_ERROR 54 141 #define OPAL_PCI_MASK_PE_ERROR 54
142 #define OPAL_SET_SLOT_LED_STATUS 55 142 #define OPAL_SET_SLOT_LED_STATUS 55
143 #define OPAL_GET_EPOW_STATUS 56 143 #define OPAL_GET_EPOW_STATUS 56
144 #define OPAL_SET_SYSTEM_ATTENTION_LED 57 144 #define OPAL_SET_SYSTEM_ATTENTION_LED 57
145 #define OPAL_RESERVED1 58 145 #define OPAL_RESERVED1 58
146 #define OPAL_RESERVED2 59 146 #define OPAL_RESERVED2 59
147 #define OPAL_PCI_NEXT_ERROR 60 147 #define OPAL_PCI_NEXT_ERROR 60
148 #define OPAL_PCI_EEH_FREEZE_STATUS2 61 148 #define OPAL_PCI_EEH_FREEZE_STATUS2 61
149 #define OPAL_PCI_POLL 62 149 #define OPAL_PCI_POLL 62
150 #define OPAL_PCI_MSI_EOI 63 150 #define OPAL_PCI_MSI_EOI 63
151 #define OPAL_PCI_GET_PHB_DIAG_DATA2 64 151 #define OPAL_PCI_GET_PHB_DIAG_DATA2 64
152 #define OPAL_XSCOM_READ 65 152 #define OPAL_XSCOM_READ 65
153 #define OPAL_XSCOM_WRITE 66 153 #define OPAL_XSCOM_WRITE 66
154 #define OPAL_LPC_READ 67 154 #define OPAL_LPC_READ 67
155 #define OPAL_LPC_WRITE 68 155 #define OPAL_LPC_WRITE 68
156 #define OPAL_RETURN_CPU 69 156 #define OPAL_RETURN_CPU 69
157 #define OPAL_ELOG_READ 71 157 #define OPAL_ELOG_READ 71
158 #define OPAL_ELOG_WRITE 72 158 #define OPAL_ELOG_WRITE 72
159 #define OPAL_ELOG_ACK 73 159 #define OPAL_ELOG_ACK 73
160 #define OPAL_ELOG_RESEND 74 160 #define OPAL_ELOG_RESEND 74
161 #define OPAL_ELOG_SIZE 75 161 #define OPAL_ELOG_SIZE 75
162 #define OPAL_FLASH_VALIDATE 76 162 #define OPAL_FLASH_VALIDATE 76
163 #define OPAL_FLASH_MANAGE 77 163 #define OPAL_FLASH_MANAGE 77
164 #define OPAL_FLASH_UPDATE 78 164 #define OPAL_FLASH_UPDATE 78
165 #define OPAL_RESYNC_TIMEBASE 79 165 #define OPAL_RESYNC_TIMEBASE 79
166 #define OPAL_DUMP_INIT 81 166 #define OPAL_DUMP_INIT 81
167 #define OPAL_DUMP_INFO 82 167 #define OPAL_DUMP_INFO 82
168 #define OPAL_DUMP_READ 83 168 #define OPAL_DUMP_READ 83
169 #define OPAL_DUMP_ACK 84 169 #define OPAL_DUMP_ACK 84
170 #define OPAL_GET_MSG 85 170 #define OPAL_GET_MSG 85
171 #define OPAL_CHECK_ASYNC_COMPLETION 86 171 #define OPAL_CHECK_ASYNC_COMPLETION 86
172 #define OPAL_SYNC_HOST_REBOOT 87 172 #define OPAL_SYNC_HOST_REBOOT 87
173 #define OPAL_SENSOR_READ 88 173 #define OPAL_SENSOR_READ 88
174 #define OPAL_GET_PARAM 89 174 #define OPAL_GET_PARAM 89
175 #define OPAL_SET_PARAM 90 175 #define OPAL_SET_PARAM 90
176 #define OPAL_DUMP_RESEND 91 176 #define OPAL_DUMP_RESEND 91
177 #define OPAL_DUMP_INFO2 94 177 #define OPAL_DUMP_INFO2 94
178 178
179 #ifndef __ASSEMBLY__ 179 #ifndef __ASSEMBLY__
180 180
181 #include <linux/notifier.h> 181 #include <linux/notifier.h>
182 182
183 /* Other enums */ 183 /* Other enums */
184 enum OpalVendorApiTokens { 184 enum OpalVendorApiTokens {
185 OPAL_START_VENDOR_API_RANGE = 1000, OPAL_END_VENDOR_API_RANGE = 1999 185 OPAL_START_VENDOR_API_RANGE = 1000, OPAL_END_VENDOR_API_RANGE = 1999
186 }; 186 };
187 187
188 enum OpalFreezeState { 188 enum OpalFreezeState {
189 OPAL_EEH_STOPPED_NOT_FROZEN = 0, 189 OPAL_EEH_STOPPED_NOT_FROZEN = 0,
190 OPAL_EEH_STOPPED_MMIO_FREEZE = 1, 190 OPAL_EEH_STOPPED_MMIO_FREEZE = 1,
191 OPAL_EEH_STOPPED_DMA_FREEZE = 2, 191 OPAL_EEH_STOPPED_DMA_FREEZE = 2,
192 OPAL_EEH_STOPPED_MMIO_DMA_FREEZE = 3, 192 OPAL_EEH_STOPPED_MMIO_DMA_FREEZE = 3,
193 OPAL_EEH_STOPPED_RESET = 4, 193 OPAL_EEH_STOPPED_RESET = 4,
194 OPAL_EEH_STOPPED_TEMP_UNAVAIL = 5, 194 OPAL_EEH_STOPPED_TEMP_UNAVAIL = 5,
195 OPAL_EEH_STOPPED_PERM_UNAVAIL = 6 195 OPAL_EEH_STOPPED_PERM_UNAVAIL = 6
196 }; 196 };
197 197
198 enum OpalEehFreezeActionToken { 198 enum OpalEehFreezeActionToken {
199 OPAL_EEH_ACTION_CLEAR_FREEZE_MMIO = 1, 199 OPAL_EEH_ACTION_CLEAR_FREEZE_MMIO = 1,
200 OPAL_EEH_ACTION_CLEAR_FREEZE_DMA = 2, 200 OPAL_EEH_ACTION_CLEAR_FREEZE_DMA = 2,
201 OPAL_EEH_ACTION_CLEAR_FREEZE_ALL = 3 201 OPAL_EEH_ACTION_CLEAR_FREEZE_ALL = 3
202 }; 202 };
203 203
204 enum OpalPciStatusToken { 204 enum OpalPciStatusToken {
205 OPAL_EEH_NO_ERROR = 0, 205 OPAL_EEH_NO_ERROR = 0,
206 OPAL_EEH_IOC_ERROR = 1, 206 OPAL_EEH_IOC_ERROR = 1,
207 OPAL_EEH_PHB_ERROR = 2, 207 OPAL_EEH_PHB_ERROR = 2,
208 OPAL_EEH_PE_ERROR = 3, 208 OPAL_EEH_PE_ERROR = 3,
209 OPAL_EEH_PE_MMIO_ERROR = 4, 209 OPAL_EEH_PE_MMIO_ERROR = 4,
210 OPAL_EEH_PE_DMA_ERROR = 5 210 OPAL_EEH_PE_DMA_ERROR = 5
211 }; 211 };
212 212
213 enum OpalPciErrorSeverity { 213 enum OpalPciErrorSeverity {
214 OPAL_EEH_SEV_NO_ERROR = 0, 214 OPAL_EEH_SEV_NO_ERROR = 0,
215 OPAL_EEH_SEV_IOC_DEAD = 1, 215 OPAL_EEH_SEV_IOC_DEAD = 1,
216 OPAL_EEH_SEV_PHB_DEAD = 2, 216 OPAL_EEH_SEV_PHB_DEAD = 2,
217 OPAL_EEH_SEV_PHB_FENCED = 3, 217 OPAL_EEH_SEV_PHB_FENCED = 3,
218 OPAL_EEH_SEV_PE_ER = 4, 218 OPAL_EEH_SEV_PE_ER = 4,
219 OPAL_EEH_SEV_INF = 5 219 OPAL_EEH_SEV_INF = 5
220 }; 220 };
221 221
222 enum OpalShpcAction { 222 enum OpalShpcAction {
223 OPAL_SHPC_GET_LINK_STATE = 0, 223 OPAL_SHPC_GET_LINK_STATE = 0,
224 OPAL_SHPC_GET_SLOT_STATE = 1 224 OPAL_SHPC_GET_SLOT_STATE = 1
225 }; 225 };
226 226
227 enum OpalShpcLinkState { 227 enum OpalShpcLinkState {
228 OPAL_SHPC_LINK_DOWN = 0, 228 OPAL_SHPC_LINK_DOWN = 0,
229 OPAL_SHPC_LINK_UP = 1 229 OPAL_SHPC_LINK_UP = 1
230 }; 230 };
231 231
232 enum OpalMmioWindowType { 232 enum OpalMmioWindowType {
233 OPAL_M32_WINDOW_TYPE = 1, 233 OPAL_M32_WINDOW_TYPE = 1,
234 OPAL_M64_WINDOW_TYPE = 2, 234 OPAL_M64_WINDOW_TYPE = 2,
235 OPAL_IO_WINDOW_TYPE = 3 235 OPAL_IO_WINDOW_TYPE = 3
236 }; 236 };
237 237
238 enum OpalShpcSlotState { 238 enum OpalShpcSlotState {
239 OPAL_SHPC_DEV_NOT_PRESENT = 0, 239 OPAL_SHPC_DEV_NOT_PRESENT = 0,
240 OPAL_SHPC_DEV_PRESENT = 1 240 OPAL_SHPC_DEV_PRESENT = 1
241 }; 241 };
242 242
243 enum OpalExceptionHandler { 243 enum OpalExceptionHandler {
244 OPAL_MACHINE_CHECK_HANDLER = 1, 244 OPAL_MACHINE_CHECK_HANDLER = 1,
245 OPAL_HYPERVISOR_MAINTENANCE_HANDLER = 2, 245 OPAL_HYPERVISOR_MAINTENANCE_HANDLER = 2,
246 OPAL_SOFTPATCH_HANDLER = 3 246 OPAL_SOFTPATCH_HANDLER = 3
247 }; 247 };
248 248
249 enum OpalPendingState { 249 enum OpalPendingState {
250 OPAL_EVENT_OPAL_INTERNAL = 0x1, 250 OPAL_EVENT_OPAL_INTERNAL = 0x1,
251 OPAL_EVENT_NVRAM = 0x2, 251 OPAL_EVENT_NVRAM = 0x2,
252 OPAL_EVENT_RTC = 0x4, 252 OPAL_EVENT_RTC = 0x4,
253 OPAL_EVENT_CONSOLE_OUTPUT = 0x8, 253 OPAL_EVENT_CONSOLE_OUTPUT = 0x8,
254 OPAL_EVENT_CONSOLE_INPUT = 0x10, 254 OPAL_EVENT_CONSOLE_INPUT = 0x10,
255 OPAL_EVENT_ERROR_LOG_AVAIL = 0x20, 255 OPAL_EVENT_ERROR_LOG_AVAIL = 0x20,
256 OPAL_EVENT_ERROR_LOG = 0x40, 256 OPAL_EVENT_ERROR_LOG = 0x40,
257 OPAL_EVENT_EPOW = 0x80, 257 OPAL_EVENT_EPOW = 0x80,
258 OPAL_EVENT_LED_STATUS = 0x100, 258 OPAL_EVENT_LED_STATUS = 0x100,
259 OPAL_EVENT_PCI_ERROR = 0x200, 259 OPAL_EVENT_PCI_ERROR = 0x200,
260 OPAL_EVENT_DUMP_AVAIL = 0x400, 260 OPAL_EVENT_DUMP_AVAIL = 0x400,
261 OPAL_EVENT_MSG_PENDING = 0x800, 261 OPAL_EVENT_MSG_PENDING = 0x800,
262 }; 262 };
263 263
264 enum OpalMessageType { 264 enum OpalMessageType {
265 OPAL_MSG_ASYNC_COMP = 0, /* params[0] = token, params[1] = rc, 265 OPAL_MSG_ASYNC_COMP = 0, /* params[0] = token, params[1] = rc,
266 * additional params function-specific 266 * additional params function-specific
267 */ 267 */
268 OPAL_MSG_MEM_ERR, 268 OPAL_MSG_MEM_ERR,
269 OPAL_MSG_EPOW, 269 OPAL_MSG_EPOW,
270 OPAL_MSG_SHUTDOWN, 270 OPAL_MSG_SHUTDOWN,
271 OPAL_MSG_TYPE_MAX, 271 OPAL_MSG_TYPE_MAX,
272 }; 272 };
273 273
274 /* Machine check related definitions */ 274 /* Machine check related definitions */
275 enum OpalMCE_Version { 275 enum OpalMCE_Version {
276 OpalMCE_V1 = 1, 276 OpalMCE_V1 = 1,
277 }; 277 };
278 278
279 enum OpalMCE_Severity { 279 enum OpalMCE_Severity {
280 OpalMCE_SEV_NO_ERROR = 0, 280 OpalMCE_SEV_NO_ERROR = 0,
281 OpalMCE_SEV_WARNING = 1, 281 OpalMCE_SEV_WARNING = 1,
282 OpalMCE_SEV_ERROR_SYNC = 2, 282 OpalMCE_SEV_ERROR_SYNC = 2,
283 OpalMCE_SEV_FATAL = 3, 283 OpalMCE_SEV_FATAL = 3,
284 }; 284 };
285 285
286 enum OpalMCE_Disposition { 286 enum OpalMCE_Disposition {
287 OpalMCE_DISPOSITION_RECOVERED = 0, 287 OpalMCE_DISPOSITION_RECOVERED = 0,
288 OpalMCE_DISPOSITION_NOT_RECOVERED = 1, 288 OpalMCE_DISPOSITION_NOT_RECOVERED = 1,
289 }; 289 };
290 290
291 enum OpalMCE_Initiator { 291 enum OpalMCE_Initiator {
292 OpalMCE_INITIATOR_UNKNOWN = 0, 292 OpalMCE_INITIATOR_UNKNOWN = 0,
293 OpalMCE_INITIATOR_CPU = 1, 293 OpalMCE_INITIATOR_CPU = 1,
294 }; 294 };
295 295
296 enum OpalMCE_ErrorType { 296 enum OpalMCE_ErrorType {
297 OpalMCE_ERROR_TYPE_UNKNOWN = 0, 297 OpalMCE_ERROR_TYPE_UNKNOWN = 0,
298 OpalMCE_ERROR_TYPE_UE = 1, 298 OpalMCE_ERROR_TYPE_UE = 1,
299 OpalMCE_ERROR_TYPE_SLB = 2, 299 OpalMCE_ERROR_TYPE_SLB = 2,
300 OpalMCE_ERROR_TYPE_ERAT = 3, 300 OpalMCE_ERROR_TYPE_ERAT = 3,
301 OpalMCE_ERROR_TYPE_TLB = 4, 301 OpalMCE_ERROR_TYPE_TLB = 4,
302 }; 302 };
303 303
304 enum OpalMCE_UeErrorType { 304 enum OpalMCE_UeErrorType {
305 OpalMCE_UE_ERROR_INDETERMINATE = 0, 305 OpalMCE_UE_ERROR_INDETERMINATE = 0,
306 OpalMCE_UE_ERROR_IFETCH = 1, 306 OpalMCE_UE_ERROR_IFETCH = 1,
307 OpalMCE_UE_ERROR_PAGE_TABLE_WALK_IFETCH = 2, 307 OpalMCE_UE_ERROR_PAGE_TABLE_WALK_IFETCH = 2,
308 OpalMCE_UE_ERROR_LOAD_STORE = 3, 308 OpalMCE_UE_ERROR_LOAD_STORE = 3,
309 OpalMCE_UE_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 4, 309 OpalMCE_UE_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 4,
310 }; 310 };
311 311
312 enum OpalMCE_SlbErrorType { 312 enum OpalMCE_SlbErrorType {
313 OpalMCE_SLB_ERROR_INDETERMINATE = 0, 313 OpalMCE_SLB_ERROR_INDETERMINATE = 0,
314 OpalMCE_SLB_ERROR_PARITY = 1, 314 OpalMCE_SLB_ERROR_PARITY = 1,
315 OpalMCE_SLB_ERROR_MULTIHIT = 2, 315 OpalMCE_SLB_ERROR_MULTIHIT = 2,
316 }; 316 };
317 317
318 enum OpalMCE_EratErrorType { 318 enum OpalMCE_EratErrorType {
319 OpalMCE_ERAT_ERROR_INDETERMINATE = 0, 319 OpalMCE_ERAT_ERROR_INDETERMINATE = 0,
320 OpalMCE_ERAT_ERROR_PARITY = 1, 320 OpalMCE_ERAT_ERROR_PARITY = 1,
321 OpalMCE_ERAT_ERROR_MULTIHIT = 2, 321 OpalMCE_ERAT_ERROR_MULTIHIT = 2,
322 }; 322 };
323 323
324 enum OpalMCE_TlbErrorType { 324 enum OpalMCE_TlbErrorType {
325 OpalMCE_TLB_ERROR_INDETERMINATE = 0, 325 OpalMCE_TLB_ERROR_INDETERMINATE = 0,
326 OpalMCE_TLB_ERROR_PARITY = 1, 326 OpalMCE_TLB_ERROR_PARITY = 1,
327 OpalMCE_TLB_ERROR_MULTIHIT = 2, 327 OpalMCE_TLB_ERROR_MULTIHIT = 2,
328 }; 328 };
329 329
330 enum OpalThreadStatus { 330 enum OpalThreadStatus {
331 OPAL_THREAD_INACTIVE = 0x0, 331 OPAL_THREAD_INACTIVE = 0x0,
332 OPAL_THREAD_STARTED = 0x1, 332 OPAL_THREAD_STARTED = 0x1,
333 OPAL_THREAD_UNAVAILABLE = 0x2 /* opal-v3 */ 333 OPAL_THREAD_UNAVAILABLE = 0x2 /* opal-v3 */
334 }; 334 };
335 335
336 enum OpalPciBusCompare { 336 enum OpalPciBusCompare {
337 OpalPciBusAny = 0, /* Any bus number match */ 337 OpalPciBusAny = 0, /* Any bus number match */
338 OpalPciBus3Bits = 2, /* Match top 3 bits of bus number */ 338 OpalPciBus3Bits = 2, /* Match top 3 bits of bus number */
339 OpalPciBus4Bits = 3, /* Match top 4 bits of bus number */ 339 OpalPciBus4Bits = 3, /* Match top 4 bits of bus number */
340 OpalPciBus5Bits = 4, /* Match top 5 bits of bus number */ 340 OpalPciBus5Bits = 4, /* Match top 5 bits of bus number */
341 OpalPciBus6Bits = 5, /* Match top 6 bits of bus number */ 341 OpalPciBus6Bits = 5, /* Match top 6 bits of bus number */
342 OpalPciBus7Bits = 6, /* Match top 7 bits of bus number */ 342 OpalPciBus7Bits = 6, /* Match top 7 bits of bus number */
343 OpalPciBusAll = 7, /* Match bus number exactly */ 343 OpalPciBusAll = 7, /* Match bus number exactly */
344 }; 344 };
345 345
346 enum OpalDeviceCompare { 346 enum OpalDeviceCompare {
347 OPAL_IGNORE_RID_DEVICE_NUMBER = 0, 347 OPAL_IGNORE_RID_DEVICE_NUMBER = 0,
348 OPAL_COMPARE_RID_DEVICE_NUMBER = 1 348 OPAL_COMPARE_RID_DEVICE_NUMBER = 1
349 }; 349 };
350 350
351 enum OpalFuncCompare { 351 enum OpalFuncCompare {
352 OPAL_IGNORE_RID_FUNCTION_NUMBER = 0, 352 OPAL_IGNORE_RID_FUNCTION_NUMBER = 0,
353 OPAL_COMPARE_RID_FUNCTION_NUMBER = 1 353 OPAL_COMPARE_RID_FUNCTION_NUMBER = 1
354 }; 354 };
355 355
356 enum OpalPeAction { 356 enum OpalPeAction {
357 OPAL_UNMAP_PE = 0, 357 OPAL_UNMAP_PE = 0,
358 OPAL_MAP_PE = 1 358 OPAL_MAP_PE = 1
359 }; 359 };
360 360
361 enum OpalPeltvAction { 361 enum OpalPeltvAction {
362 OPAL_REMOVE_PE_FROM_DOMAIN = 0, 362 OPAL_REMOVE_PE_FROM_DOMAIN = 0,
363 OPAL_ADD_PE_TO_DOMAIN = 1 363 OPAL_ADD_PE_TO_DOMAIN = 1
364 }; 364 };
365 365
366 enum OpalMveEnableAction { 366 enum OpalMveEnableAction {
367 OPAL_DISABLE_MVE = 0, 367 OPAL_DISABLE_MVE = 0,
368 OPAL_ENABLE_MVE = 1 368 OPAL_ENABLE_MVE = 1
369 }; 369 };
370 370
371 enum OpalPciResetScope { 371 enum OpalPciResetScope {
372 OPAL_PHB_COMPLETE = 1, OPAL_PCI_LINK = 2, OPAL_PHB_ERROR = 3, 372 OPAL_PHB_COMPLETE = 1, OPAL_PCI_LINK = 2, OPAL_PHB_ERROR = 3,
373 OPAL_PCI_HOT_RESET = 4, OPAL_PCI_FUNDAMENTAL_RESET = 5, 373 OPAL_PCI_HOT_RESET = 4, OPAL_PCI_FUNDAMENTAL_RESET = 5,
374 OPAL_PCI_IODA_TABLE_RESET = 6, 374 OPAL_PCI_IODA_TABLE_RESET = 6,
375 }; 375 };
376 376
377 enum OpalPciReinitScope { 377 enum OpalPciReinitScope {
378 OPAL_REINIT_PCI_DEV = 1000 378 OPAL_REINIT_PCI_DEV = 1000
379 }; 379 };
380 380
381 enum OpalPciResetState { 381 enum OpalPciResetState {
382 OPAL_DEASSERT_RESET = 0, 382 OPAL_DEASSERT_RESET = 0,
383 OPAL_ASSERT_RESET = 1 383 OPAL_ASSERT_RESET = 1
384 }; 384 };
385 385
386 enum OpalPciMaskAction { 386 enum OpalPciMaskAction {
387 OPAL_UNMASK_ERROR_TYPE = 0, 387 OPAL_UNMASK_ERROR_TYPE = 0,
388 OPAL_MASK_ERROR_TYPE = 1 388 OPAL_MASK_ERROR_TYPE = 1
389 }; 389 };
390 390
391 enum OpalSlotLedType { 391 enum OpalSlotLedType {
392 OPAL_SLOT_LED_ID_TYPE = 0, 392 OPAL_SLOT_LED_ID_TYPE = 0,
393 OPAL_SLOT_LED_FAULT_TYPE = 1 393 OPAL_SLOT_LED_FAULT_TYPE = 1
394 }; 394 };
395 395
396 enum OpalLedAction { 396 enum OpalLedAction {
397 OPAL_TURN_OFF_LED = 0, 397 OPAL_TURN_OFF_LED = 0,
398 OPAL_TURN_ON_LED = 1, 398 OPAL_TURN_ON_LED = 1,
399 OPAL_QUERY_LED_STATE_AFTER_BUSY = 2 399 OPAL_QUERY_LED_STATE_AFTER_BUSY = 2
400 }; 400 };
401 401
402 enum OpalEpowStatus { 402 enum OpalEpowStatus {
403 OPAL_EPOW_NONE = 0, 403 OPAL_EPOW_NONE = 0,
404 OPAL_EPOW_UPS = 1, 404 OPAL_EPOW_UPS = 1,
405 OPAL_EPOW_OVER_AMBIENT_TEMP = 2, 405 OPAL_EPOW_OVER_AMBIENT_TEMP = 2,
406 OPAL_EPOW_OVER_INTERNAL_TEMP = 3 406 OPAL_EPOW_OVER_INTERNAL_TEMP = 3
407 }; 407 };
408 408
409 /* 409 /*
410 * Address cycle types for LPC accesses. These also correspond 410 * Address cycle types for LPC accesses. These also correspond
411 * to the content of the first cell of the "reg" property for 411 * to the content of the first cell of the "reg" property for
412 * device nodes on the LPC bus 412 * device nodes on the LPC bus
413 */ 413 */
414 enum OpalLPCAddressType { 414 enum OpalLPCAddressType {
415 OPAL_LPC_MEM = 0, 415 OPAL_LPC_MEM = 0,
416 OPAL_LPC_IO = 1, 416 OPAL_LPC_IO = 1,
417 OPAL_LPC_FW = 2, 417 OPAL_LPC_FW = 2,
418 }; 418 };
419 419
420 /* System parameter permission */ 420 /* System parameter permission */
421 enum OpalSysparamPerm { 421 enum OpalSysparamPerm {
422 OPAL_SYSPARAM_READ = 0x1, 422 OPAL_SYSPARAM_READ = 0x1,
423 OPAL_SYSPARAM_WRITE = 0x2, 423 OPAL_SYSPARAM_WRITE = 0x2,
424 OPAL_SYSPARAM_RW = (OPAL_SYSPARAM_READ | OPAL_SYSPARAM_WRITE), 424 OPAL_SYSPARAM_RW = (OPAL_SYSPARAM_READ | OPAL_SYSPARAM_WRITE),
425 }; 425 };
426 426
427 struct opal_msg { 427 struct opal_msg {
428 __be32 msg_type; 428 __be32 msg_type;
429 __be32 reserved; 429 __be32 reserved;
430 __be64 params[8]; 430 __be64 params[8];
431 }; 431 };
432 432
433 struct opal_machine_check_event { 433 struct opal_machine_check_event {
434 enum OpalMCE_Version version:8; /* 0x00 */ 434 enum OpalMCE_Version version:8; /* 0x00 */
435 uint8_t in_use; /* 0x01 */ 435 uint8_t in_use; /* 0x01 */
436 enum OpalMCE_Severity severity:8; /* 0x02 */ 436 enum OpalMCE_Severity severity:8; /* 0x02 */
437 enum OpalMCE_Initiator initiator:8; /* 0x03 */ 437 enum OpalMCE_Initiator initiator:8; /* 0x03 */
438 enum OpalMCE_ErrorType error_type:8; /* 0x04 */ 438 enum OpalMCE_ErrorType error_type:8; /* 0x04 */
439 enum OpalMCE_Disposition disposition:8; /* 0x05 */ 439 enum OpalMCE_Disposition disposition:8; /* 0x05 */
440 uint8_t reserved_1[2]; /* 0x06 */ 440 uint8_t reserved_1[2]; /* 0x06 */
441 uint64_t gpr3; /* 0x08 */ 441 uint64_t gpr3; /* 0x08 */
442 uint64_t srr0; /* 0x10 */ 442 uint64_t srr0; /* 0x10 */
443 uint64_t srr1; /* 0x18 */ 443 uint64_t srr1; /* 0x18 */
444 union { /* 0x20 */ 444 union { /* 0x20 */
445 struct { 445 struct {
446 enum OpalMCE_UeErrorType ue_error_type:8; 446 enum OpalMCE_UeErrorType ue_error_type:8;
447 uint8_t effective_address_provided; 447 uint8_t effective_address_provided;
448 uint8_t physical_address_provided; 448 uint8_t physical_address_provided;
449 uint8_t reserved_1[5]; 449 uint8_t reserved_1[5];
450 uint64_t effective_address; 450 uint64_t effective_address;
451 uint64_t physical_address; 451 uint64_t physical_address;
452 uint8_t reserved_2[8]; 452 uint8_t reserved_2[8];
453 } ue_error; 453 } ue_error;
454 454
455 struct { 455 struct {
456 enum OpalMCE_SlbErrorType slb_error_type:8; 456 enum OpalMCE_SlbErrorType slb_error_type:8;
457 uint8_t effective_address_provided; 457 uint8_t effective_address_provided;
458 uint8_t reserved_1[6]; 458 uint8_t reserved_1[6];
459 uint64_t effective_address; 459 uint64_t effective_address;
460 uint8_t reserved_2[16]; 460 uint8_t reserved_2[16];
461 } slb_error; 461 } slb_error;
462 462
463 struct { 463 struct {
464 enum OpalMCE_EratErrorType erat_error_type:8; 464 enum OpalMCE_EratErrorType erat_error_type:8;
465 uint8_t effective_address_provided; 465 uint8_t effective_address_provided;
466 uint8_t reserved_1[6]; 466 uint8_t reserved_1[6];
467 uint64_t effective_address; 467 uint64_t effective_address;
468 uint8_t reserved_2[16]; 468 uint8_t reserved_2[16];
469 } erat_error; 469 } erat_error;
470 470
471 struct { 471 struct {
472 enum OpalMCE_TlbErrorType tlb_error_type:8; 472 enum OpalMCE_TlbErrorType tlb_error_type:8;
473 uint8_t effective_address_provided; 473 uint8_t effective_address_provided;
474 uint8_t reserved_1[6]; 474 uint8_t reserved_1[6];
475 uint64_t effective_address; 475 uint64_t effective_address;
476 uint8_t reserved_2[16]; 476 uint8_t reserved_2[16];
477 } tlb_error; 477 } tlb_error;
478 } u; 478 } u;
479 }; 479 };
480 480
481 /* FSP memory errors handling */ 481 /* FSP memory errors handling */
482 enum OpalMemErr_Version { 482 enum OpalMemErr_Version {
483 OpalMemErr_V1 = 1, 483 OpalMemErr_V1 = 1,
484 }; 484 };
485 485
486 enum OpalMemErrType { 486 enum OpalMemErrType {
487 OPAL_MEM_ERR_TYPE_RESILIENCE = 0, 487 OPAL_MEM_ERR_TYPE_RESILIENCE = 0,
488 OPAL_MEM_ERR_TYPE_DYN_DALLOC, 488 OPAL_MEM_ERR_TYPE_DYN_DALLOC,
489 OPAL_MEM_ERR_TYPE_SCRUB, 489 OPAL_MEM_ERR_TYPE_SCRUB,
490 }; 490 };
491 491
492 /* Memory Reilience error type */ 492 /* Memory Reilience error type */
493 enum OpalMemErr_ResilErrType { 493 enum OpalMemErr_ResilErrType {
494 OPAL_MEM_RESILIENCE_CE = 0, 494 OPAL_MEM_RESILIENCE_CE = 0,
495 OPAL_MEM_RESILIENCE_UE, 495 OPAL_MEM_RESILIENCE_UE,
496 OPAL_MEM_RESILIENCE_UE_SCRUB, 496 OPAL_MEM_RESILIENCE_UE_SCRUB,
497 }; 497 };
498 498
499 /* Dynamic Memory Deallocation type */ 499 /* Dynamic Memory Deallocation type */
500 enum OpalMemErr_DynErrType { 500 enum OpalMemErr_DynErrType {
501 OPAL_MEM_DYNAMIC_DEALLOC = 0, 501 OPAL_MEM_DYNAMIC_DEALLOC = 0,
502 }; 502 };
503 503
504 /* OpalMemoryErrorData->flags */ 504 /* OpalMemoryErrorData->flags */
505 #define OPAL_MEM_CORRECTED_ERROR 0x0001 505 #define OPAL_MEM_CORRECTED_ERROR 0x0001
506 #define OPAL_MEM_THRESHOLD_EXCEEDED 0x0002 506 #define OPAL_MEM_THRESHOLD_EXCEEDED 0x0002
507 #define OPAL_MEM_ACK_REQUIRED 0x8000 507 #define OPAL_MEM_ACK_REQUIRED 0x8000
508 508
509 struct OpalMemoryErrorData { 509 struct OpalMemoryErrorData {
510 enum OpalMemErr_Version version:8; /* 0x00 */ 510 enum OpalMemErr_Version version:8; /* 0x00 */
511 enum OpalMemErrType type:8; /* 0x01 */ 511 enum OpalMemErrType type:8; /* 0x01 */
512 uint16_t flags; /* 0x02 */ 512 uint16_t flags; /* 0x02 */
513 uint8_t reserved_1[4]; /* 0x04 */ 513 uint8_t reserved_1[4]; /* 0x04 */
514 514
515 union { 515 union {
516 /* Memory Resilience corrected/uncorrected error info */ 516 /* Memory Resilience corrected/uncorrected error info */
517 struct { 517 struct {
518 enum OpalMemErr_ResilErrType resil_err_type:8; 518 enum OpalMemErr_ResilErrType resil_err_type:8;
519 uint8_t reserved_1[7]; 519 uint8_t reserved_1[7];
520 uint64_t physical_address_start; 520 uint64_t physical_address_start;
521 uint64_t physical_address_end; 521 uint64_t physical_address_end;
522 } resilience; 522 } resilience;
523 /* Dynamic memory deallocation error info */ 523 /* Dynamic memory deallocation error info */
524 struct { 524 struct {
525 enum OpalMemErr_DynErrType dyn_err_type:8; 525 enum OpalMemErr_DynErrType dyn_err_type:8;
526 uint8_t reserved_1[7]; 526 uint8_t reserved_1[7];
527 uint64_t physical_address_start; 527 uint64_t physical_address_start;
528 uint64_t physical_address_end; 528 uint64_t physical_address_end;
529 } dyn_dealloc; 529 } dyn_dealloc;
530 } u; 530 } u;
531 }; 531 };
532 532
533 enum { 533 enum {
534 OPAL_P7IOC_DIAG_TYPE_NONE = 0, 534 OPAL_P7IOC_DIAG_TYPE_NONE = 0,
535 OPAL_P7IOC_DIAG_TYPE_RGC = 1, 535 OPAL_P7IOC_DIAG_TYPE_RGC = 1,
536 OPAL_P7IOC_DIAG_TYPE_BI = 2, 536 OPAL_P7IOC_DIAG_TYPE_BI = 2,
537 OPAL_P7IOC_DIAG_TYPE_CI = 3, 537 OPAL_P7IOC_DIAG_TYPE_CI = 3,
538 OPAL_P7IOC_DIAG_TYPE_MISC = 4, 538 OPAL_P7IOC_DIAG_TYPE_MISC = 4,
539 OPAL_P7IOC_DIAG_TYPE_I2C = 5, 539 OPAL_P7IOC_DIAG_TYPE_I2C = 5,
540 OPAL_P7IOC_DIAG_TYPE_LAST = 6 540 OPAL_P7IOC_DIAG_TYPE_LAST = 6
541 }; 541 };
542 542
543 struct OpalIoP7IOCErrorData { 543 struct OpalIoP7IOCErrorData {
544 uint16_t type; 544 uint16_t type;
545 545
546 /* GEM */ 546 /* GEM */
547 uint64_t gemXfir; 547 uint64_t gemXfir;
548 uint64_t gemRfir; 548 uint64_t gemRfir;
549 uint64_t gemRirqfir; 549 uint64_t gemRirqfir;
550 uint64_t gemMask; 550 uint64_t gemMask;
551 uint64_t gemRwof; 551 uint64_t gemRwof;
552 552
553 /* LEM */ 553 /* LEM */
554 uint64_t lemFir; 554 uint64_t lemFir;
555 uint64_t lemErrMask; 555 uint64_t lemErrMask;
556 uint64_t lemAction0; 556 uint64_t lemAction0;
557 uint64_t lemAction1; 557 uint64_t lemAction1;
558 uint64_t lemWof; 558 uint64_t lemWof;
559 559
560 union { 560 union {
561 struct OpalIoP7IOCRgcErrorData { 561 struct OpalIoP7IOCRgcErrorData {
562 uint64_t rgcStatus; /* 3E1C10 */ 562 uint64_t rgcStatus; /* 3E1C10 */
563 uint64_t rgcLdcp; /* 3E1C18 */ 563 uint64_t rgcLdcp; /* 3E1C18 */
564 }rgc; 564 }rgc;
565 struct OpalIoP7IOCBiErrorData { 565 struct OpalIoP7IOCBiErrorData {
566 uint64_t biLdcp0; /* 3C0100, 3C0118 */ 566 uint64_t biLdcp0; /* 3C0100, 3C0118 */
567 uint64_t biLdcp1; /* 3C0108, 3C0120 */ 567 uint64_t biLdcp1; /* 3C0108, 3C0120 */
568 uint64_t biLdcp2; /* 3C0110, 3C0128 */ 568 uint64_t biLdcp2; /* 3C0110, 3C0128 */
569 uint64_t biFenceStatus; /* 3C0130, 3C0130 */ 569 uint64_t biFenceStatus; /* 3C0130, 3C0130 */
570 570
571 uint8_t biDownbound; /* BI Downbound or Upbound */ 571 uint8_t biDownbound; /* BI Downbound or Upbound */
572 }bi; 572 }bi;
573 struct OpalIoP7IOCCiErrorData { 573 struct OpalIoP7IOCCiErrorData {
574 uint64_t ciPortStatus; /* 3Dn008 */ 574 uint64_t ciPortStatus; /* 3Dn008 */
575 uint64_t ciPortLdcp; /* 3Dn010 */ 575 uint64_t ciPortLdcp; /* 3Dn010 */
576 576
577 uint8_t ciPort; /* Index of CI port: 0/1 */ 577 uint8_t ciPort; /* Index of CI port: 0/1 */
578 }ci; 578 }ci;
579 }; 579 };
580 }; 580 };
581 581
582 /** 582 /**
583 * This structure defines the overlay which will be used to store PHB error 583 * This structure defines the overlay which will be used to store PHB error
584 * data upon request. 584 * data upon request.
585 */ 585 */
586 enum { 586 enum {
587 OPAL_PHB_ERROR_DATA_VERSION_1 = 1, 587 OPAL_PHB_ERROR_DATA_VERSION_1 = 1,
588 }; 588 };
589 589
590 enum { 590 enum {
591 OPAL_PHB_ERROR_DATA_TYPE_P7IOC = 1, 591 OPAL_PHB_ERROR_DATA_TYPE_P7IOC = 1,
592 OPAL_PHB_ERROR_DATA_TYPE_PHB3 = 2 592 OPAL_PHB_ERROR_DATA_TYPE_PHB3 = 2
593 }; 593 };
594 594
595 enum { 595 enum {
596 OPAL_P7IOC_NUM_PEST_REGS = 128, 596 OPAL_P7IOC_NUM_PEST_REGS = 128,
597 OPAL_PHB3_NUM_PEST_REGS = 256 597 OPAL_PHB3_NUM_PEST_REGS = 256
598 }; 598 };
599 599
600 struct OpalIoPhbErrorCommon { 600 struct OpalIoPhbErrorCommon {
601 uint32_t version; 601 uint32_t version;
602 uint32_t ioType; 602 uint32_t ioType;
603 uint32_t len; 603 uint32_t len;
604 }; 604 };
605 605
606 struct OpalIoP7IOCPhbErrorData { 606 struct OpalIoP7IOCPhbErrorData {
607 struct OpalIoPhbErrorCommon common; 607 struct OpalIoPhbErrorCommon common;
608 608
609 uint32_t brdgCtl; 609 uint32_t brdgCtl;
610 610
611 // P7IOC utl regs 611 // P7IOC utl regs
612 uint32_t portStatusReg; 612 uint32_t portStatusReg;
613 uint32_t rootCmplxStatus; 613 uint32_t rootCmplxStatus;
614 uint32_t busAgentStatus; 614 uint32_t busAgentStatus;
615 615
616 // P7IOC cfg regs 616 // P7IOC cfg regs
617 uint32_t deviceStatus; 617 uint32_t deviceStatus;
618 uint32_t slotStatus; 618 uint32_t slotStatus;
619 uint32_t linkStatus; 619 uint32_t linkStatus;
620 uint32_t devCmdStatus; 620 uint32_t devCmdStatus;
621 uint32_t devSecStatus; 621 uint32_t devSecStatus;
622 622
623 // cfg AER regs 623 // cfg AER regs
624 uint32_t rootErrorStatus; 624 uint32_t rootErrorStatus;
625 uint32_t uncorrErrorStatus; 625 uint32_t uncorrErrorStatus;
626 uint32_t corrErrorStatus; 626 uint32_t corrErrorStatus;
627 uint32_t tlpHdr1; 627 uint32_t tlpHdr1;
628 uint32_t tlpHdr2; 628 uint32_t tlpHdr2;
629 uint32_t tlpHdr3; 629 uint32_t tlpHdr3;
630 uint32_t tlpHdr4; 630 uint32_t tlpHdr4;
631 uint32_t sourceId; 631 uint32_t sourceId;
632 632
633 uint32_t rsv3; 633 uint32_t rsv3;
634 634
635 // Record data about the call to allocate a buffer. 635 // Record data about the call to allocate a buffer.
636 uint64_t errorClass; 636 uint64_t errorClass;
637 uint64_t correlator; 637 uint64_t correlator;
638 638
639 //P7IOC MMIO Error Regs 639 //P7IOC MMIO Error Regs
640 uint64_t p7iocPlssr; // n120 640 uint64_t p7iocPlssr; // n120
641 uint64_t p7iocCsr; // n110 641 uint64_t p7iocCsr; // n110
642 uint64_t lemFir; // nC00 642 uint64_t lemFir; // nC00
643 uint64_t lemErrorMask; // nC18 643 uint64_t lemErrorMask; // nC18
644 uint64_t lemWOF; // nC40 644 uint64_t lemWOF; // nC40
645 uint64_t phbErrorStatus; // nC80 645 uint64_t phbErrorStatus; // nC80
646 uint64_t phbFirstErrorStatus; // nC88 646 uint64_t phbFirstErrorStatus; // nC88
647 uint64_t phbErrorLog0; // nCC0 647 uint64_t phbErrorLog0; // nCC0
648 uint64_t phbErrorLog1; // nCC8 648 uint64_t phbErrorLog1; // nCC8
649 uint64_t mmioErrorStatus; // nD00 649 uint64_t mmioErrorStatus; // nD00
650 uint64_t mmioFirstErrorStatus; // nD08 650 uint64_t mmioFirstErrorStatus; // nD08
651 uint64_t mmioErrorLog0; // nD40 651 uint64_t mmioErrorLog0; // nD40
652 uint64_t mmioErrorLog1; // nD48 652 uint64_t mmioErrorLog1; // nD48
653 uint64_t dma0ErrorStatus; // nD80 653 uint64_t dma0ErrorStatus; // nD80
654 uint64_t dma0FirstErrorStatus; // nD88 654 uint64_t dma0FirstErrorStatus; // nD88
655 uint64_t dma0ErrorLog0; // nDC0 655 uint64_t dma0ErrorLog0; // nDC0
656 uint64_t dma0ErrorLog1; // nDC8 656 uint64_t dma0ErrorLog1; // nDC8
657 uint64_t dma1ErrorStatus; // nE00 657 uint64_t dma1ErrorStatus; // nE00
658 uint64_t dma1FirstErrorStatus; // nE08 658 uint64_t dma1FirstErrorStatus; // nE08
659 uint64_t dma1ErrorLog0; // nE40 659 uint64_t dma1ErrorLog0; // nE40
660 uint64_t dma1ErrorLog1; // nE48 660 uint64_t dma1ErrorLog1; // nE48
661 uint64_t pestA[OPAL_P7IOC_NUM_PEST_REGS]; 661 uint64_t pestA[OPAL_P7IOC_NUM_PEST_REGS];
662 uint64_t pestB[OPAL_P7IOC_NUM_PEST_REGS]; 662 uint64_t pestB[OPAL_P7IOC_NUM_PEST_REGS];
663 }; 663 };
664 664
665 struct OpalIoPhb3ErrorData { 665 struct OpalIoPhb3ErrorData {
666 struct OpalIoPhbErrorCommon common; 666 struct OpalIoPhbErrorCommon common;
667 667
668 uint32_t brdgCtl; 668 uint32_t brdgCtl;
669 669
670 /* PHB3 UTL regs */ 670 /* PHB3 UTL regs */
671 uint32_t portStatusReg; 671 uint32_t portStatusReg;
672 uint32_t rootCmplxStatus; 672 uint32_t rootCmplxStatus;
673 uint32_t busAgentStatus; 673 uint32_t busAgentStatus;
674 674
675 /* PHB3 cfg regs */ 675 /* PHB3 cfg regs */
676 uint32_t deviceStatus; 676 uint32_t deviceStatus;
677 uint32_t slotStatus; 677 uint32_t slotStatus;
678 uint32_t linkStatus; 678 uint32_t linkStatus;
679 uint32_t devCmdStatus; 679 uint32_t devCmdStatus;
680 uint32_t devSecStatus; 680 uint32_t devSecStatus;
681 681
682 /* cfg AER regs */ 682 /* cfg AER regs */
683 uint32_t rootErrorStatus; 683 uint32_t rootErrorStatus;
684 uint32_t uncorrErrorStatus; 684 uint32_t uncorrErrorStatus;
685 uint32_t corrErrorStatus; 685 uint32_t corrErrorStatus;
686 uint32_t tlpHdr1; 686 uint32_t tlpHdr1;
687 uint32_t tlpHdr2; 687 uint32_t tlpHdr2;
688 uint32_t tlpHdr3; 688 uint32_t tlpHdr3;
689 uint32_t tlpHdr4; 689 uint32_t tlpHdr4;
690 uint32_t sourceId; 690 uint32_t sourceId;
691 691
692 uint32_t rsv3; 692 uint32_t rsv3;
693 693
694 /* Record data about the call to allocate a buffer */ 694 /* Record data about the call to allocate a buffer */
695 uint64_t errorClass; 695 uint64_t errorClass;
696 uint64_t correlator; 696 uint64_t correlator;
697 697
698 uint64_t nFir; /* 000 */ 698 uint64_t nFir; /* 000 */
699 uint64_t nFirMask; /* 003 */ 699 uint64_t nFirMask; /* 003 */
700 uint64_t nFirWOF; /* 008 */ 700 uint64_t nFirWOF; /* 008 */
701 701
702 /* PHB3 MMIO Error Regs */ 702 /* PHB3 MMIO Error Regs */
703 uint64_t phbPlssr; /* 120 */ 703 uint64_t phbPlssr; /* 120 */
704 uint64_t phbCsr; /* 110 */ 704 uint64_t phbCsr; /* 110 */
705 uint64_t lemFir; /* C00 */ 705 uint64_t lemFir; /* C00 */
706 uint64_t lemErrorMask; /* C18 */ 706 uint64_t lemErrorMask; /* C18 */
707 uint64_t lemWOF; /* C40 */ 707 uint64_t lemWOF; /* C40 */
708 uint64_t phbErrorStatus; /* C80 */ 708 uint64_t phbErrorStatus; /* C80 */
709 uint64_t phbFirstErrorStatus; /* C88 */ 709 uint64_t phbFirstErrorStatus; /* C88 */
710 uint64_t phbErrorLog0; /* CC0 */ 710 uint64_t phbErrorLog0; /* CC0 */
711 uint64_t phbErrorLog1; /* CC8 */ 711 uint64_t phbErrorLog1; /* CC8 */
712 uint64_t mmioErrorStatus; /* D00 */ 712 uint64_t mmioErrorStatus; /* D00 */
713 uint64_t mmioFirstErrorStatus; /* D08 */ 713 uint64_t mmioFirstErrorStatus; /* D08 */
714 uint64_t mmioErrorLog0; /* D40 */ 714 uint64_t mmioErrorLog0; /* D40 */
715 uint64_t mmioErrorLog1; /* D48 */ 715 uint64_t mmioErrorLog1; /* D48 */
716 uint64_t dma0ErrorStatus; /* D80 */ 716 uint64_t dma0ErrorStatus; /* D80 */
717 uint64_t dma0FirstErrorStatus; /* D88 */ 717 uint64_t dma0FirstErrorStatus; /* D88 */
718 uint64_t dma0ErrorLog0; /* DC0 */ 718 uint64_t dma0ErrorLog0; /* DC0 */
719 uint64_t dma0ErrorLog1; /* DC8 */ 719 uint64_t dma0ErrorLog1; /* DC8 */
720 uint64_t dma1ErrorStatus; /* E00 */ 720 uint64_t dma1ErrorStatus; /* E00 */
721 uint64_t dma1FirstErrorStatus; /* E08 */ 721 uint64_t dma1FirstErrorStatus; /* E08 */
722 uint64_t dma1ErrorLog0; /* E40 */ 722 uint64_t dma1ErrorLog0; /* E40 */
723 uint64_t dma1ErrorLog1; /* E48 */ 723 uint64_t dma1ErrorLog1; /* E48 */
724 uint64_t pestA[OPAL_PHB3_NUM_PEST_REGS]; 724 uint64_t pestA[OPAL_PHB3_NUM_PEST_REGS];
725 uint64_t pestB[OPAL_PHB3_NUM_PEST_REGS]; 725 uint64_t pestB[OPAL_PHB3_NUM_PEST_REGS];
726 }; 726 };
727 727
728 typedef struct oppanel_line { 728 typedef struct oppanel_line {
729 const char * line; 729 const char * line;
730 uint64_t line_len; 730 uint64_t line_len;
731 } oppanel_line_t; 731 } oppanel_line_t;
732 732
733 /* /sys/firmware/opal */ 733 /* /sys/firmware/opal */
734 extern struct kobject *opal_kobj; 734 extern struct kobject *opal_kobj;
735 735
736 /* /ibm,opal */ 736 /* /ibm,opal */
737 extern struct device_node *opal_node; 737 extern struct device_node *opal_node;
738 738
739 /* API functions */ 739 /* API functions */
740 int64_t opal_invalid_call(void); 740 int64_t opal_invalid_call(void);
741 int64_t opal_console_write(int64_t term_number, __be64 *length, 741 int64_t opal_console_write(int64_t term_number, __be64 *length,
742 const uint8_t *buffer); 742 const uint8_t *buffer);
743 int64_t opal_console_read(int64_t term_number, __be64 *length, 743 int64_t opal_console_read(int64_t term_number, __be64 *length,
744 uint8_t *buffer); 744 uint8_t *buffer);
745 int64_t opal_console_write_buffer_space(int64_t term_number, 745 int64_t opal_console_write_buffer_space(int64_t term_number,
746 __be64 *length); 746 __be64 *length);
747 int64_t opal_rtc_read(__be32 *year_month_day, 747 int64_t opal_rtc_read(__be32 *year_month_day,
748 __be64 *hour_minute_second_millisecond); 748 __be64 *hour_minute_second_millisecond);
749 int64_t opal_rtc_write(uint32_t year_month_day, 749 int64_t opal_rtc_write(uint32_t year_month_day,
750 uint64_t hour_minute_second_millisecond); 750 uint64_t hour_minute_second_millisecond);
751 int64_t opal_cec_power_down(uint64_t request); 751 int64_t opal_cec_power_down(uint64_t request);
752 int64_t opal_cec_reboot(void); 752 int64_t opal_cec_reboot(void);
753 int64_t opal_read_nvram(uint64_t buffer, uint64_t size, uint64_t offset); 753 int64_t opal_read_nvram(uint64_t buffer, uint64_t size, uint64_t offset);
754 int64_t opal_write_nvram(uint64_t buffer, uint64_t size, uint64_t offset); 754 int64_t opal_write_nvram(uint64_t buffer, uint64_t size, uint64_t offset);
755 int64_t opal_handle_interrupt(uint64_t isn, __be64 *outstanding_event_mask); 755 int64_t opal_handle_interrupt(uint64_t isn, __be64 *outstanding_event_mask);
756 int64_t opal_poll_events(__be64 *outstanding_event_mask); 756 int64_t opal_poll_events(__be64 *outstanding_event_mask);
757 int64_t opal_pci_set_hub_tce_memory(uint64_t hub_id, uint64_t tce_mem_addr, 757 int64_t opal_pci_set_hub_tce_memory(uint64_t hub_id, uint64_t tce_mem_addr,
758 uint64_t tce_mem_size); 758 uint64_t tce_mem_size);
759 int64_t opal_pci_set_phb_tce_memory(uint64_t phb_id, uint64_t tce_mem_addr, 759 int64_t opal_pci_set_phb_tce_memory(uint64_t phb_id, uint64_t tce_mem_addr,
760 uint64_t tce_mem_size); 760 uint64_t tce_mem_size);
761 int64_t opal_pci_config_read_byte(uint64_t phb_id, uint64_t bus_dev_func, 761 int64_t opal_pci_config_read_byte(uint64_t phb_id, uint64_t bus_dev_func,
762 uint64_t offset, uint8_t *data); 762 uint64_t offset, uint8_t *data);
763 int64_t opal_pci_config_read_half_word(uint64_t phb_id, uint64_t bus_dev_func, 763 int64_t opal_pci_config_read_half_word(uint64_t phb_id, uint64_t bus_dev_func,
764 uint64_t offset, __be16 *data); 764 uint64_t offset, __be16 *data);
765 int64_t opal_pci_config_read_word(uint64_t phb_id, uint64_t bus_dev_func, 765 int64_t opal_pci_config_read_word(uint64_t phb_id, uint64_t bus_dev_func,
766 uint64_t offset, __be32 *data); 766 uint64_t offset, __be32 *data);
767 int64_t opal_pci_config_write_byte(uint64_t phb_id, uint64_t bus_dev_func, 767 int64_t opal_pci_config_write_byte(uint64_t phb_id, uint64_t bus_dev_func,
768 uint64_t offset, uint8_t data); 768 uint64_t offset, uint8_t data);
769 int64_t opal_pci_config_write_half_word(uint64_t phb_id, uint64_t bus_dev_func, 769 int64_t opal_pci_config_write_half_word(uint64_t phb_id, uint64_t bus_dev_func,
770 uint64_t offset, uint16_t data); 770 uint64_t offset, uint16_t data);
771 int64_t opal_pci_config_write_word(uint64_t phb_id, uint64_t bus_dev_func, 771 int64_t opal_pci_config_write_word(uint64_t phb_id, uint64_t bus_dev_func,
772 uint64_t offset, uint32_t data); 772 uint64_t offset, uint32_t data);
773 int64_t opal_set_xive(uint32_t isn, uint16_t server, uint8_t priority); 773 int64_t opal_set_xive(uint32_t isn, uint16_t server, uint8_t priority);
774 int64_t opal_get_xive(uint32_t isn, __be16 *server, uint8_t *priority); 774 int64_t opal_get_xive(uint32_t isn, __be16 *server, uint8_t *priority);
775 int64_t opal_register_exception_handler(uint64_t opal_exception, 775 int64_t opal_register_exception_handler(uint64_t opal_exception,
776 uint64_t handler_address, 776 uint64_t handler_address,
777 uint64_t glue_cache_line); 777 uint64_t glue_cache_line);
778 int64_t opal_pci_eeh_freeze_status(uint64_t phb_id, uint64_t pe_number, 778 int64_t opal_pci_eeh_freeze_status(uint64_t phb_id, uint64_t pe_number,
779 uint8_t *freeze_state, 779 uint8_t *freeze_state,
780 __be16 *pci_error_type, 780 __be16 *pci_error_type,
781 __be64 *phb_status); 781 __be64 *phb_status);
782 int64_t opal_pci_eeh_freeze_clear(uint64_t phb_id, uint64_t pe_number, 782 int64_t opal_pci_eeh_freeze_clear(uint64_t phb_id, uint64_t pe_number,
783 uint64_t eeh_action_token); 783 uint64_t eeh_action_token);
784 int64_t opal_pci_shpc(uint64_t phb_id, uint64_t shpc_action, uint8_t *state); 784 int64_t opal_pci_shpc(uint64_t phb_id, uint64_t shpc_action, uint8_t *state);
785 785
786 786
787 787
788 int64_t opal_pci_phb_mmio_enable(uint64_t phb_id, uint16_t window_type, 788 int64_t opal_pci_phb_mmio_enable(uint64_t phb_id, uint16_t window_type,
789 uint16_t window_num, uint16_t enable); 789 uint16_t window_num, uint16_t enable);
790 int64_t opal_pci_set_phb_mem_window(uint64_t phb_id, uint16_t window_type, 790 int64_t opal_pci_set_phb_mem_window(uint64_t phb_id, uint16_t window_type,
791 uint16_t window_num, 791 uint16_t window_num,
792 uint64_t starting_real_address, 792 uint64_t starting_real_address,
793 uint64_t starting_pci_address, 793 uint64_t starting_pci_address,
794 uint16_t segment_size); 794 uint16_t segment_size);
795 int64_t opal_pci_map_pe_mmio_window(uint64_t phb_id, uint16_t pe_number, 795 int64_t opal_pci_map_pe_mmio_window(uint64_t phb_id, uint16_t pe_number,
796 uint16_t window_type, uint16_t window_num, 796 uint16_t window_type, uint16_t window_num,
797 uint16_t segment_num); 797 uint16_t segment_num);
798 int64_t opal_pci_set_phb_table_memory(uint64_t phb_id, uint64_t rtt_addr, 798 int64_t opal_pci_set_phb_table_memory(uint64_t phb_id, uint64_t rtt_addr,
799 uint64_t ivt_addr, uint64_t ivt_len, 799 uint64_t ivt_addr, uint64_t ivt_len,
800 uint64_t reject_array_addr, 800 uint64_t reject_array_addr,
801 uint64_t peltv_addr); 801 uint64_t peltv_addr);
802 int64_t opal_pci_set_pe(uint64_t phb_id, uint64_t pe_number, uint64_t bus_dev_func, 802 int64_t opal_pci_set_pe(uint64_t phb_id, uint64_t pe_number, uint64_t bus_dev_func,
803 uint8_t bus_compare, uint8_t dev_compare, uint8_t func_compare, 803 uint8_t bus_compare, uint8_t dev_compare, uint8_t func_compare,
804 uint8_t pe_action); 804 uint8_t pe_action);
805 int64_t opal_pci_set_peltv(uint64_t phb_id, uint32_t parent_pe, uint32_t child_pe, 805 int64_t opal_pci_set_peltv(uint64_t phb_id, uint32_t parent_pe, uint32_t child_pe,
806 uint8_t state); 806 uint8_t state);
807 int64_t opal_pci_set_mve(uint64_t phb_id, uint32_t mve_number, uint32_t pe_number); 807 int64_t opal_pci_set_mve(uint64_t phb_id, uint32_t mve_number, uint32_t pe_number);
808 int64_t opal_pci_set_mve_enable(uint64_t phb_id, uint32_t mve_number, 808 int64_t opal_pci_set_mve_enable(uint64_t phb_id, uint32_t mve_number,
809 uint32_t state); 809 uint32_t state);
810 int64_t opal_pci_get_xive_reissue(uint64_t phb_id, uint32_t xive_number, 810 int64_t opal_pci_get_xive_reissue(uint64_t phb_id, uint32_t xive_number,
811 uint8_t *p_bit, uint8_t *q_bit); 811 uint8_t *p_bit, uint8_t *q_bit);
812 int64_t opal_pci_set_xive_reissue(uint64_t phb_id, uint32_t xive_number, 812 int64_t opal_pci_set_xive_reissue(uint64_t phb_id, uint32_t xive_number,
813 uint8_t p_bit, uint8_t q_bit); 813 uint8_t p_bit, uint8_t q_bit);
814 int64_t opal_pci_msi_eoi(uint64_t phb_id, uint32_t hw_irq); 814 int64_t opal_pci_msi_eoi(uint64_t phb_id, uint32_t hw_irq);
815 int64_t opal_pci_set_xive_pe(uint64_t phb_id, uint32_t pe_number, 815 int64_t opal_pci_set_xive_pe(uint64_t phb_id, uint32_t pe_number,
816 uint32_t xive_num); 816 uint32_t xive_num);
817 int64_t opal_get_xive_source(uint64_t phb_id, uint32_t xive_num, 817 int64_t opal_get_xive_source(uint64_t phb_id, uint32_t xive_num,
818 __be32 *interrupt_source_number); 818 __be32 *interrupt_source_number);
819 int64_t opal_get_msi_32(uint64_t phb_id, uint32_t mve_number, uint32_t xive_num, 819 int64_t opal_get_msi_32(uint64_t phb_id, uint32_t mve_number, uint32_t xive_num,
820 uint8_t msi_range, __be32 *msi_address, 820 uint8_t msi_range, __be32 *msi_address,
821 __be32 *message_data); 821 __be32 *message_data);
822 int64_t opal_get_msi_64(uint64_t phb_id, uint32_t mve_number, 822 int64_t opal_get_msi_64(uint64_t phb_id, uint32_t mve_number,
823 uint32_t xive_num, uint8_t msi_range, 823 uint32_t xive_num, uint8_t msi_range,
824 __be64 *msi_address, __be32 *message_data); 824 __be64 *msi_address, __be32 *message_data);
825 int64_t opal_start_cpu(uint64_t thread_number, uint64_t start_address); 825 int64_t opal_start_cpu(uint64_t thread_number, uint64_t start_address);
826 int64_t opal_query_cpu_status(uint64_t thread_number, uint8_t *thread_status); 826 int64_t opal_query_cpu_status(uint64_t thread_number, uint8_t *thread_status);
827 int64_t opal_write_oppanel(oppanel_line_t *lines, uint64_t num_lines); 827 int64_t opal_write_oppanel(oppanel_line_t *lines, uint64_t num_lines);
828 int64_t opal_pci_map_pe_dma_window(uint64_t phb_id, uint16_t pe_number, uint16_t window_id, 828 int64_t opal_pci_map_pe_dma_window(uint64_t phb_id, uint16_t pe_number, uint16_t window_id,
829 uint16_t tce_levels, uint64_t tce_table_addr, 829 uint16_t tce_levels, uint64_t tce_table_addr,
830 uint64_t tce_table_size, uint64_t tce_page_size); 830 uint64_t tce_table_size, uint64_t tce_page_size);
831 int64_t opal_pci_map_pe_dma_window_real(uint64_t phb_id, uint16_t pe_number, 831 int64_t opal_pci_map_pe_dma_window_real(uint64_t phb_id, uint16_t pe_number,
832 uint16_t dma_window_number, uint64_t pci_start_addr, 832 uint16_t dma_window_number, uint64_t pci_start_addr,
833 uint64_t pci_mem_size); 833 uint64_t pci_mem_size);
834 int64_t opal_pci_reset(uint64_t phb_id, uint8_t reset_scope, uint8_t assert_state); 834 int64_t opal_pci_reset(uint64_t phb_id, uint8_t reset_scope, uint8_t assert_state);
835 835
836 int64_t opal_pci_get_hub_diag_data(uint64_t hub_id, void *diag_buffer, 836 int64_t opal_pci_get_hub_diag_data(uint64_t hub_id, void *diag_buffer,
837 uint64_t diag_buffer_len); 837 uint64_t diag_buffer_len);
838 int64_t opal_pci_get_phb_diag_data(uint64_t phb_id, void *diag_buffer, 838 int64_t opal_pci_get_phb_diag_data(uint64_t phb_id, void *diag_buffer,
839 uint64_t diag_buffer_len); 839 uint64_t diag_buffer_len);
840 int64_t opal_pci_get_phb_diag_data2(uint64_t phb_id, void *diag_buffer, 840 int64_t opal_pci_get_phb_diag_data2(uint64_t phb_id, void *diag_buffer,
841 uint64_t diag_buffer_len); 841 uint64_t diag_buffer_len);
842 int64_t opal_pci_fence_phb(uint64_t phb_id); 842 int64_t opal_pci_fence_phb(uint64_t phb_id);
843 int64_t opal_pci_reinit(uint64_t phb_id, uint64_t reinit_scope, uint64_t data); 843 int64_t opal_pci_reinit(uint64_t phb_id, uint64_t reinit_scope, uint64_t data);
844 int64_t opal_pci_mask_pe_error(uint64_t phb_id, uint16_t pe_number, uint8_t error_type, uint8_t mask_action); 844 int64_t opal_pci_mask_pe_error(uint64_t phb_id, uint16_t pe_number, uint8_t error_type, uint8_t mask_action);
845 int64_t opal_set_slot_led_status(uint64_t phb_id, uint64_t slot_id, uint8_t led_type, uint8_t led_action); 845 int64_t opal_set_slot_led_status(uint64_t phb_id, uint64_t slot_id, uint8_t led_type, uint8_t led_action);
846 int64_t opal_get_epow_status(__be64 *status); 846 int64_t opal_get_epow_status(__be64 *status);
847 int64_t opal_set_system_attention_led(uint8_t led_action); 847 int64_t opal_set_system_attention_led(uint8_t led_action);
848 int64_t opal_pci_next_error(uint64_t phb_id, uint64_t *first_frozen_pe, 848 int64_t opal_pci_next_error(uint64_t phb_id, uint64_t *first_frozen_pe,
849 uint16_t *pci_error_type, uint16_t *severity); 849 uint16_t *pci_error_type, uint16_t *severity);
850 int64_t opal_pci_poll(uint64_t phb_id); 850 int64_t opal_pci_poll(uint64_t phb_id);
851 int64_t opal_return_cpu(void); 851 int64_t opal_return_cpu(void);
852 852
853 int64_t opal_xscom_read(uint32_t gcid, uint64_t pcb_addr, __be64 *val); 853 int64_t opal_xscom_read(uint32_t gcid, uint64_t pcb_addr, __be64 *val);
854 int64_t opal_xscom_write(uint32_t gcid, uint64_t pcb_addr, uint64_t val); 854 int64_t opal_xscom_write(uint32_t gcid, uint64_t pcb_addr, uint64_t val);
855 855
856 int64_t opal_lpc_write(uint32_t chip_id, enum OpalLPCAddressType addr_type, 856 int64_t opal_lpc_write(uint32_t chip_id, enum OpalLPCAddressType addr_type,
857 uint32_t addr, uint32_t data, uint32_t sz); 857 uint32_t addr, uint32_t data, uint32_t sz);
858 int64_t opal_lpc_read(uint32_t chip_id, enum OpalLPCAddressType addr_type, 858 int64_t opal_lpc_read(uint32_t chip_id, enum OpalLPCAddressType addr_type,
859 uint32_t addr, __be32 *data, uint32_t sz); 859 uint32_t addr, __be32 *data, uint32_t sz);
860 860
861 int64_t opal_read_elog(uint64_t buffer, size_t size, uint64_t log_id); 861 int64_t opal_read_elog(uint64_t buffer, uint64_t size, uint64_t log_id);
862 int64_t opal_get_elog_size(uint64_t *log_id, size_t *size, uint64_t *elog_type); 862 int64_t opal_get_elog_size(uint64_t *log_id, uint64_t *size, uint64_t *elog_type);
863 int64_t opal_write_elog(uint64_t buffer, uint64_t size, uint64_t offset); 863 int64_t opal_write_elog(uint64_t buffer, uint64_t size, uint64_t offset);
864 int64_t opal_send_ack_elog(uint64_t log_id); 864 int64_t opal_send_ack_elog(uint64_t log_id);
865 void opal_resend_pending_logs(void); 865 void opal_resend_pending_logs(void);
866 866
867 int64_t opal_validate_flash(uint64_t buffer, uint32_t *size, uint32_t *result); 867 int64_t opal_validate_flash(uint64_t buffer, uint32_t *size, uint32_t *result);
868 int64_t opal_manage_flash(uint8_t op); 868 int64_t opal_manage_flash(uint8_t op);
869 int64_t opal_update_flash(uint64_t blk_list); 869 int64_t opal_update_flash(uint64_t blk_list);
870 int64_t opal_dump_init(uint8_t dump_type); 870 int64_t opal_dump_init(uint8_t dump_type);
871 int64_t opal_dump_info(uint32_t *dump_id, uint32_t *dump_size); 871 int64_t opal_dump_info(uint32_t *dump_id, uint32_t *dump_size);
872 int64_t opal_dump_info2(uint32_t *dump_id, uint32_t *dump_size, uint32_t *dump_type); 872 int64_t opal_dump_info2(uint32_t *dump_id, uint32_t *dump_size, uint32_t *dump_type);
873 int64_t opal_dump_read(uint32_t dump_id, uint64_t buffer); 873 int64_t opal_dump_read(uint32_t dump_id, uint64_t buffer);
874 int64_t opal_dump_ack(uint32_t dump_id); 874 int64_t opal_dump_ack(uint32_t dump_id);
875 int64_t opal_dump_resend_notification(void); 875 int64_t opal_dump_resend_notification(void);
876 876
877 int64_t opal_get_msg(uint64_t buffer, size_t size); 877 int64_t opal_get_msg(uint64_t buffer, uint64_t size);
878 int64_t opal_check_completion(uint64_t buffer, size_t size, uint64_t token); 878 int64_t opal_check_completion(uint64_t buffer, uint64_t size, uint64_t token);
879 int64_t opal_sync_host_reboot(void); 879 int64_t opal_sync_host_reboot(void);
880 int64_t opal_get_param(uint64_t token, uint32_t param_id, uint64_t buffer, 880 int64_t opal_get_param(uint64_t token, uint32_t param_id, uint64_t buffer,
881 size_t length); 881 uint64_t length);
882 int64_t opal_set_param(uint64_t token, uint32_t param_id, uint64_t buffer, 882 int64_t opal_set_param(uint64_t token, uint32_t param_id, uint64_t buffer,
883 size_t length); 883 uint64_t length);
884 int64_t opal_sensor_read(uint32_t sensor_hndl, int token, __be32 *sensor_data); 884 int64_t opal_sensor_read(uint32_t sensor_hndl, int token, __be32 *sensor_data);
885 885
886 /* Internal functions */ 886 /* Internal functions */
887 extern int early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data); 887 extern int early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data);
888 extern int early_init_dt_scan_recoverable_ranges(unsigned long node, 888 extern int early_init_dt_scan_recoverable_ranges(unsigned long node,
889 const char *uname, int depth, void *data); 889 const char *uname, int depth, void *data);
890 890
891 extern int opal_get_chars(uint32_t vtermno, char *buf, int count); 891 extern int opal_get_chars(uint32_t vtermno, char *buf, int count);
892 extern int opal_put_chars(uint32_t vtermno, const char *buf, int total_len); 892 extern int opal_put_chars(uint32_t vtermno, const char *buf, int total_len);
893 893
894 extern void hvc_opal_init_early(void); 894 extern void hvc_opal_init_early(void);
895 895
896 /* Internal functions */ 896 /* Internal functions */
897 extern int early_init_dt_scan_opal(unsigned long node, const char *uname, 897 extern int early_init_dt_scan_opal(unsigned long node, const char *uname,
898 int depth, void *data); 898 int depth, void *data);
899 899
900 extern int opal_notifier_register(struct notifier_block *nb); 900 extern int opal_notifier_register(struct notifier_block *nb);
901 extern int opal_notifier_unregister(struct notifier_block *nb); 901 extern int opal_notifier_unregister(struct notifier_block *nb);
902 902
903 extern int opal_message_notifier_register(enum OpalMessageType msg_type, 903 extern int opal_message_notifier_register(enum OpalMessageType msg_type,
904 struct notifier_block *nb); 904 struct notifier_block *nb);
905 extern void opal_notifier_enable(void); 905 extern void opal_notifier_enable(void);
906 extern void opal_notifier_disable(void); 906 extern void opal_notifier_disable(void);
907 extern void opal_notifier_update_evt(uint64_t evt_mask, uint64_t evt_val); 907 extern void opal_notifier_update_evt(uint64_t evt_mask, uint64_t evt_val);
908 908
909 extern int opal_get_chars(uint32_t vtermno, char *buf, int count); 909 extern int opal_get_chars(uint32_t vtermno, char *buf, int count);
910 extern int opal_put_chars(uint32_t vtermno, const char *buf, int total_len); 910 extern int opal_put_chars(uint32_t vtermno, const char *buf, int total_len);
911 911
912 extern int __opal_async_get_token(void); 912 extern int __opal_async_get_token(void);
913 extern int opal_async_get_token_interruptible(void); 913 extern int opal_async_get_token_interruptible(void);
914 extern int __opal_async_release_token(int token); 914 extern int __opal_async_release_token(int token);
915 extern int opal_async_release_token(int token); 915 extern int opal_async_release_token(int token);
916 extern int opal_async_wait_response(uint64_t token, struct opal_msg *msg); 916 extern int opal_async_wait_response(uint64_t token, struct opal_msg *msg);
917 extern int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data); 917 extern int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data);
918 918
919 extern void hvc_opal_init_early(void); 919 extern void hvc_opal_init_early(void);
920 920
921 struct rtc_time; 921 struct rtc_time;
922 extern int opal_set_rtc_time(struct rtc_time *tm); 922 extern int opal_set_rtc_time(struct rtc_time *tm);
923 extern void opal_get_rtc_time(struct rtc_time *tm); 923 extern void opal_get_rtc_time(struct rtc_time *tm);
924 extern unsigned long opal_get_boot_time(void); 924 extern unsigned long opal_get_boot_time(void);
925 extern void opal_nvram_init(void); 925 extern void opal_nvram_init(void);
926 extern void opal_flash_init(void); 926 extern void opal_flash_init(void);
927 extern int opal_elog_init(void); 927 extern int opal_elog_init(void);
928 extern void opal_platform_dump_init(void); 928 extern void opal_platform_dump_init(void);
929 extern void opal_sys_param_init(void); 929 extern void opal_sys_param_init(void);
930 extern void opal_msglog_init(void); 930 extern void opal_msglog_init(void);
931 931
932 extern int opal_machine_check(struct pt_regs *regs); 932 extern int opal_machine_check(struct pt_regs *regs);
933 extern bool opal_mce_check_early_recovery(struct pt_regs *regs); 933 extern bool opal_mce_check_early_recovery(struct pt_regs *regs);
934 934
935 extern void opal_shutdown(void); 935 extern void opal_shutdown(void);
936 extern int opal_resync_timebase(void); 936 extern int opal_resync_timebase(void);
937 937
938 extern void opal_lpc_init(void); 938 extern void opal_lpc_init(void);
939 939
940 #endif /* __ASSEMBLY__ */ 940 #endif /* __ASSEMBLY__ */
941 941
942 #endif /* __OPAL_H */ 942 #endif /* __OPAL_H */
943 943
arch/powerpc/platforms/powernv/opal-elog.c
Diff comments   View file @ 2bad742
1 /* 1 /*
2 * Error log support on PowerNV. 2 * Error log support on PowerNV.
3 * 3 *
4 * Copyright 2013,2014 IBM Corp. 4 * Copyright 2013,2014 IBM Corp.
5 * 5 *
6 * This program is free software; you can redistribute it and/or 6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License 7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version. 9 * 2 of the License, or (at your option) any later version.
10 */ 10 */
11 #include <linux/kernel.h> 11 #include <linux/kernel.h>
12 #include <linux/init.h> 12 #include <linux/init.h>
13 #include <linux/of.h> 13 #include <linux/of.h>
14 #include <linux/slab.h> 14 #include <linux/slab.h>
15 #include <linux/sysfs.h> 15 #include <linux/sysfs.h>
16 #include <linux/fs.h> 16 #include <linux/fs.h>
17 #include <linux/vmalloc.h> 17 #include <linux/vmalloc.h>
18 #include <linux/fcntl.h> 18 #include <linux/fcntl.h>
19 #include <linux/kobject.h> 19 #include <linux/kobject.h>
20 #include <asm/uaccess.h> 20 #include <asm/uaccess.h>
21 #include <asm/opal.h> 21 #include <asm/opal.h>
22 22
23 struct elog_obj { 23 struct elog_obj {
24 struct kobject kobj; 24 struct kobject kobj;
25 struct bin_attribute raw_attr; 25 struct bin_attribute raw_attr;
26 uint64_t id; 26 uint64_t id;
27 uint64_t type; 27 uint64_t type;
28 size_t size; 28 size_t size;
29 char *buffer; 29 char *buffer;
30 }; 30 };
31 #define to_elog_obj(x) container_of(x, struct elog_obj, kobj) 31 #define to_elog_obj(x) container_of(x, struct elog_obj, kobj)
32 32
33 struct elog_attribute { 33 struct elog_attribute {
34 struct attribute attr; 34 struct attribute attr;
35 ssize_t (*show)(struct elog_obj *elog, struct elog_attribute *attr, 35 ssize_t (*show)(struct elog_obj *elog, struct elog_attribute *attr,
36 char *buf); 36 char *buf);
37 ssize_t (*store)(struct elog_obj *elog, struct elog_attribute *attr, 37 ssize_t (*store)(struct elog_obj *elog, struct elog_attribute *attr,
38 const char *buf, size_t count); 38 const char *buf, size_t count);
39 }; 39 };
40 #define to_elog_attr(x) container_of(x, struct elog_attribute, attr) 40 #define to_elog_attr(x) container_of(x, struct elog_attribute, attr)
41 41
42 static ssize_t elog_id_show(struct elog_obj *elog_obj, 42 static ssize_t elog_id_show(struct elog_obj *elog_obj,
43 struct elog_attribute *attr, 43 struct elog_attribute *attr,
44 char *buf) 44 char *buf)
45 { 45 {
46 return sprintf(buf, "0x%llx\n", elog_obj->id); 46 return sprintf(buf, "0x%llx\n", elog_obj->id);
47 } 47 }
48 48
49 static const char *elog_type_to_string(uint64_t type) 49 static const char *elog_type_to_string(uint64_t type)
50 { 50 {
51 switch (type) { 51 switch (type) {
52 case 0: return "PEL"; 52 case 0: return "PEL";
53 default: return "unknown"; 53 default: return "unknown";
54 } 54 }
55 } 55 }
56 56
57 static ssize_t elog_type_show(struct elog_obj *elog_obj, 57 static ssize_t elog_type_show(struct elog_obj *elog_obj,
58 struct elog_attribute *attr, 58 struct elog_attribute *attr,
59 char *buf) 59 char *buf)
60 { 60 {
61 return sprintf(buf, "0x%llx %s\n", 61 return sprintf(buf, "0x%llx %s\n",
62 elog_obj->type, 62 elog_obj->type,
63 elog_type_to_string(elog_obj->type)); 63 elog_type_to_string(elog_obj->type));
64 } 64 }
65 65
66 static ssize_t elog_ack_show(struct elog_obj *elog_obj, 66 static ssize_t elog_ack_show(struct elog_obj *elog_obj,
67 struct elog_attribute *attr, 67 struct elog_attribute *attr,
68 char *buf) 68 char *buf)
69 { 69 {
70 return sprintf(buf, "ack - acknowledge log message\n"); 70 return sprintf(buf, "ack - acknowledge log message\n");
71 } 71 }
72 72
73 static ssize_t elog_ack_store(struct elog_obj *elog_obj, 73 static ssize_t elog_ack_store(struct elog_obj *elog_obj,
74 struct elog_attribute *attr, 74 struct elog_attribute *attr,
75 const char *buf, 75 const char *buf,
76 size_t count) 76 size_t count)
77 { 77 {
78 opal_send_ack_elog(elog_obj->id); 78 opal_send_ack_elog(elog_obj->id);
79 sysfs_remove_file_self(&elog_obj->kobj, &attr->attr); 79 sysfs_remove_file_self(&elog_obj->kobj, &attr->attr);
80 kobject_put(&elog_obj->kobj); 80 kobject_put(&elog_obj->kobj);
81 return count; 81 return count;
82 } 82 }
83 83
84 static struct elog_attribute id_attribute = 84 static struct elog_attribute id_attribute =
85 __ATTR(id, 0666, elog_id_show, NULL); 85 __ATTR(id, 0666, elog_id_show, NULL);
86 static struct elog_attribute type_attribute = 86 static struct elog_attribute type_attribute =
87 __ATTR(type, 0666, elog_type_show, NULL); 87 __ATTR(type, 0666, elog_type_show, NULL);
88 static struct elog_attribute ack_attribute = 88 static struct elog_attribute ack_attribute =
89 __ATTR(acknowledge, 0660, elog_ack_show, elog_ack_store); 89 __ATTR(acknowledge, 0660, elog_ack_show, elog_ack_store);
90 90
91 static struct kset *elog_kset; 91 static struct kset *elog_kset;
92 92
93 static ssize_t elog_attr_show(struct kobject *kobj, 93 static ssize_t elog_attr_show(struct kobject *kobj,
94 struct attribute *attr, 94 struct attribute *attr,
95 char *buf) 95 char *buf)
96 { 96 {
97 struct elog_attribute *attribute; 97 struct elog_attribute *attribute;
98 struct elog_obj *elog; 98 struct elog_obj *elog;
99 99
100 attribute = to_elog_attr(attr); 100 attribute = to_elog_attr(attr);
101 elog = to_elog_obj(kobj); 101 elog = to_elog_obj(kobj);
102 102
103 if (!attribute->show) 103 if (!attribute->show)
104 return -EIO; 104 return -EIO;
105 105
106 return attribute->show(elog, attribute, buf); 106 return attribute->show(elog, attribute, buf);
107 } 107 }
108 108
109 static ssize_t elog_attr_store(struct kobject *kobj, 109 static ssize_t elog_attr_store(struct kobject *kobj,
110 struct attribute *attr, 110 struct attribute *attr,
111 const char *buf, size_t len) 111 const char *buf, size_t len)
112 { 112 {
113 struct elog_attribute *attribute; 113 struct elog_attribute *attribute;
114 struct elog_obj *elog; 114 struct elog_obj *elog;
115 115
116 attribute = to_elog_attr(attr); 116 attribute = to_elog_attr(attr);
117 elog = to_elog_obj(kobj); 117 elog = to_elog_obj(kobj);
118 118
119 if (!attribute->store) 119 if (!attribute->store)
120 return -EIO; 120 return -EIO;
121 121
122 return attribute->store(elog, attribute, buf, len); 122 return attribute->store(elog, attribute, buf, len);
123 } 123 }
124 124
125 static const struct sysfs_ops elog_sysfs_ops = { 125 static const struct sysfs_ops elog_sysfs_ops = {
126 .show = elog_attr_show, 126 .show = elog_attr_show,
127 .store = elog_attr_store, 127 .store = elog_attr_store,
128 }; 128 };
129 129
130 static void elog_release(struct kobject *kobj) 130 static void elog_release(struct kobject *kobj)
131 { 131 {
132 struct elog_obj *elog; 132 struct elog_obj *elog;
133 133
134 elog = to_elog_obj(kobj); 134 elog = to_elog_obj(kobj);
135 kfree(elog->buffer); 135 kfree(elog->buffer);
136 kfree(elog); 136 kfree(elog);
137 } 137 }
138 138
139 static struct attribute *elog_default_attrs[] = { 139 static struct attribute *elog_default_attrs[] = {
140 &id_attribute.attr, 140 &id_attribute.attr,
141 &type_attribute.attr, 141 &type_attribute.attr,
142 &ack_attribute.attr, 142 &ack_attribute.attr,
143 NULL, 143 NULL,
144 }; 144 };
145 145
146 static struct kobj_type elog_ktype = { 146 static struct kobj_type elog_ktype = {
147 .sysfs_ops = &elog_sysfs_ops, 147 .sysfs_ops = &elog_sysfs_ops,
148 .release = &elog_release, 148 .release = &elog_release,
149 .default_attrs = elog_default_attrs, 149 .default_attrs = elog_default_attrs,
150 }; 150 };
151 151
152 /* Maximum size of a single log on FSP is 16KB */ 152 /* Maximum size of a single log on FSP is 16KB */
153 #define OPAL_MAX_ERRLOG_SIZE 16384 153 #define OPAL_MAX_ERRLOG_SIZE 16384
154 154
155 static ssize_t raw_attr_read(struct file *filep, struct kobject *kobj, 155 static ssize_t raw_attr_read(struct file *filep, struct kobject *kobj,
156 struct bin_attribute *bin_attr, 156 struct bin_attribute *bin_attr,
157 char *buffer, loff_t pos, size_t count) 157 char *buffer, loff_t pos, size_t count)
158 { 158 {
159 int opal_rc; 159 int opal_rc;
160 160
161 struct elog_obj *elog = to_elog_obj(kobj); 161 struct elog_obj *elog = to_elog_obj(kobj);
162 162
163 /* We may have had an error reading before, so let's retry */ 163 /* We may have had an error reading before, so let's retry */
164 if (!elog->buffer) { 164 if (!elog->buffer) {
165 elog->buffer = kzalloc(elog->size, GFP_KERNEL); 165 elog->buffer = kzalloc(elog->size, GFP_KERNEL);
166 if (!elog->buffer) 166 if (!elog->buffer)
167 return -EIO; 167 return -EIO;
168 168
169 opal_rc = opal_read_elog(__pa(elog->buffer), 169 opal_rc = opal_read_elog(__pa(elog->buffer),
170 elog->size, elog->id); 170 elog->size, elog->id);
171 if (opal_rc != OPAL_SUCCESS) { 171 if (opal_rc != OPAL_SUCCESS) {
172 pr_err("ELOG: log read failed for log-id=%llx\n", 172 pr_err("ELOG: log read failed for log-id=%llx\n",
173 elog->id); 173 elog->id);
174 kfree(elog->buffer); 174 kfree(elog->buffer);
175 elog->buffer = NULL; 175 elog->buffer = NULL;
176 return -EIO; 176 return -EIO;
177 } 177 }
178 } 178 }
179 179
180 memcpy(buffer, elog->buffer + pos, count); 180 memcpy(buffer, elog->buffer + pos, count);
181 181
182 return count; 182 return count;
183 } 183 }
184 184
185 static struct elog_obj *create_elog_obj(uint64_t id, size_t size, uint64_t type) 185 static struct elog_obj *create_elog_obj(uint64_t id, size_t size, uint64_t type)
186 { 186 {
187 struct elog_obj *elog; 187 struct elog_obj *elog;
188 int rc; 188 int rc;
189 189
190 elog = kzalloc(sizeof(*elog), GFP_KERNEL); 190 elog = kzalloc(sizeof(*elog), GFP_KERNEL);
191 if (!elog) 191 if (!elog)
192 return NULL; 192 return NULL;
193 193
194 elog->kobj.kset = elog_kset; 194 elog->kobj.kset = elog_kset;
195 195
196 kobject_init(&elog->kobj, &elog_ktype); 196 kobject_init(&elog->kobj, &elog_ktype);
197 197
198 sysfs_bin_attr_init(&elog->raw_attr); 198 sysfs_bin_attr_init(&elog->raw_attr);
199 199
200 elog->raw_attr.attr.name = "raw"; 200 elog->raw_attr.attr.name = "raw";
201 elog->raw_attr.attr.mode = 0400; 201 elog->raw_attr.attr.mode = 0400;
202 elog->raw_attr.size = size; 202 elog->raw_attr.size = size;
203 elog->raw_attr.read = raw_attr_read; 203 elog->raw_attr.read = raw_attr_read;
204 204
205 elog->id = id; 205 elog->id = id;
206 elog->size = size; 206 elog->size = size;
207 elog->type = type; 207 elog->type = type;
208 208
209 elog->buffer = kzalloc(elog->size, GFP_KERNEL); 209 elog->buffer = kzalloc(elog->size, GFP_KERNEL);
210 210
211 if (elog->buffer) { 211 if (elog->buffer) {
212 rc = opal_read_elog(__pa(elog->buffer), 212 rc = opal_read_elog(__pa(elog->buffer),
213 elog->size, elog->id); 213 elog->size, elog->id);
214 if (rc != OPAL_SUCCESS) { 214 if (rc != OPAL_SUCCESS) {
215 pr_err("ELOG: log read failed for log-id=%llx\n", 215 pr_err("ELOG: log read failed for log-id=%llx\n",
216 elog->id); 216 elog->id);
217 kfree(elog->buffer); 217 kfree(elog->buffer);
218 elog->buffer = NULL; 218 elog->buffer = NULL;
219 } 219 }
220 } 220 }
221 221
222 rc = kobject_add(&elog->kobj, NULL, "0x%llx", id); 222 rc = kobject_add(&elog->kobj, NULL, "0x%llx", id);
223 if (rc) { 223 if (rc) {
224 kobject_put(&elog->kobj); 224 kobject_put(&elog->kobj);
225 return NULL; 225 return NULL;
226 } 226 }
227 227
228 rc = sysfs_create_bin_file(&elog->kobj, &elog->raw_attr); 228 rc = sysfs_create_bin_file(&elog->kobj, &elog->raw_attr);
229 if (rc) { 229 if (rc) {
230 kobject_put(&elog->kobj); 230 kobject_put(&elog->kobj);
231 return NULL; 231 return NULL;
232 } 232 }
233 233
234 kobject_uevent(&elog->kobj, KOBJ_ADD); 234 kobject_uevent(&elog->kobj, KOBJ_ADD);
235 235
236 return elog; 236 return elog;
237 } 237 }
238 238
239 static void elog_work_fn(struct work_struct *work) 239 static void elog_work_fn(struct work_struct *work)
240 { 240 {
241 size_t elog_size; 241 uint64_t elog_size;
242 uint64_t log_id; 242 uint64_t log_id;
243 uint64_t elog_type; 243 uint64_t elog_type;
244 int rc; 244 int rc;
245 char name[2+16+1]; 245 char name[2+16+1];
246 246
247 rc = opal_get_elog_size(&log_id, &elog_size, &elog_type); 247 rc = opal_get_elog_size(&log_id, &elog_size, &elog_type);
248 if (rc != OPAL_SUCCESS) { 248 if (rc != OPAL_SUCCESS) {
249 pr_err("ELOG: Opal log read failed\n"); 249 pr_err("ELOG: Opal log read failed\n");
250 return; 250 return;
251 } 251 }
252 252
253 BUG_ON(elog_size > OPAL_MAX_ERRLOG_SIZE); 253 BUG_ON(elog_size > OPAL_MAX_ERRLOG_SIZE);
254 254
255 if (elog_size >= OPAL_MAX_ERRLOG_SIZE) 255 if (elog_size >= OPAL_MAX_ERRLOG_SIZE)
256 elog_size = OPAL_MAX_ERRLOG_SIZE; 256 elog_size = OPAL_MAX_ERRLOG_SIZE;
257 257
258 sprintf(name, "0x%llx", log_id); 258 sprintf(name, "0x%llx", log_id);
259 259
260 /* we may get notified twice, let's handle 260 /* we may get notified twice, let's handle
261 * that gracefully and not create two conflicting 261 * that gracefully and not create two conflicting
262 * entries. 262 * entries.
263 */ 263 */
264 if (kset_find_obj(elog_kset, name)) 264 if (kset_find_obj(elog_kset, name))
265 return; 265 return;
266 266
267 create_elog_obj(log_id, elog_size, elog_type); 267 create_elog_obj(log_id, elog_size, elog_type);
268 } 268 }
269 269
270 static DECLARE_WORK(elog_work, elog_work_fn); 270 static DECLARE_WORK(elog_work, elog_work_fn);
271 271
272 static int elog_event(struct notifier_block *nb, 272 static int elog_event(struct notifier_block *nb,
273 unsigned long events, void *change) 273 unsigned long events, void *change)
274 { 274 {
275 /* check for error log event */ 275 /* check for error log event */
276 if (events & OPAL_EVENT_ERROR_LOG_AVAIL) 276 if (events & OPAL_EVENT_ERROR_LOG_AVAIL)
277 schedule_work(&elog_work); 277 schedule_work(&elog_work);
278 return 0; 278 return 0;
279 } 279 }
280 280
281 static struct notifier_block elog_nb = { 281 static struct notifier_block elog_nb = {
282 .notifier_call = elog_event, 282 .notifier_call = elog_event,
283 .next = NULL, 283 .next = NULL,
284 .priority = 0 284 .priority = 0
285 }; 285 };
286 286
287 int __init opal_elog_init(void) 287 int __init opal_elog_init(void)
288 { 288 {
289 int rc = 0; 289 int rc = 0;
290 290
291 elog_kset = kset_create_and_add("elog", NULL, opal_kobj); 291 elog_kset = kset_create_and_add("elog", NULL, opal_kobj);
292 if (!elog_kset) { 292 if (!elog_kset) {
293 pr_warn("%s: failed to create elog kset\n", __func__); 293 pr_warn("%s: failed to create elog kset\n", __func__);
294 return -1; 294 return -1;
295 } 295 }
296 296
297 rc = opal_notifier_register(&elog_nb); 297 rc = opal_notifier_register(&elog_nb);
298 if (rc) { 298 if (rc) {
299 pr_err("%s: Can't register OPAL event notifier (%d)\n", 299 pr_err("%s: Can't register OPAL event notifier (%d)\n",
300 __func__, rc); 300 __func__, rc);
301 return rc; 301 return rc;
302 } 302 }
303 303
304 /* We are now ready to pull error logs from opal. */ 304 /* We are now ready to pull error logs from opal. */
305 opal_resend_pending_logs(); 305 opal_resend_pending_logs();
306 306
307 return 0; 307 return 0;
308 } 308 }
309 309