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
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
|
/*
* PowerNV OPAL API wrappers
*
* Copyright 2011 IBM Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/jump_label.h>
#include <asm/ppc_asm.h>
#include <asm/hvcall.h>
#include <asm/asm-offsets.h>
#include <asm/opal.h>
.section ".text"
#ifdef CONFIG_TRACEPOINTS
#ifdef HAVE_JUMP_LABEL
#define OPAL_BRANCH(LABEL) \
ARCH_STATIC_BRANCH(LABEL, opal_tracepoint_key)
#else
.section ".toc","aw"
.globl opal_tracepoint_refcount
opal_tracepoint_refcount:
.8byte 0
.section ".text"
/*
* We branch around this in early init by using an unconditional cpu
* feature.
*/
#define OPAL_BRANCH(LABEL) \
BEGIN_FTR_SECTION; \
b 1f; \
END_FTR_SECTION(0, 1); \
ld r11,opal_tracepoint_refcount@toc(r2); \
cmpdi r11,0; \
bne- LABEL; \
1:
#endif
#else
#define OPAL_BRANCH(LABEL)
#endif
/*
* DO_OPAL_CALL assumes:
* r0 = opal call token
* r12 = msr
* LR has been saved
*/
#define DO_OPAL_CALL() \
mfcr r11; \
stw r11,8(r1); \
li r11,0; \
ori r11,r11,MSR_EE; \
std r12,PACASAVEDMSR(r13); \
andc r12,r12,r11; \
mtmsrd r12,1; \
LOAD_REG_ADDR(r11,opal_return); \
mtlr r11; \
li r11,MSR_DR|MSR_IR|MSR_LE;\
andc r12,r12,r11; \
mtspr SPRN_HSRR1,r12; \
LOAD_REG_ADDR(r11,opal); \
ld r12,8(r11); \
ld r2,0(r11); \
mtspr SPRN_HSRR0,r12; \
hrfid
#define OPAL_CALL(name, token) \
_GLOBAL_TOC(name); \
mfmsr r12; \
mflr r0; \
andi. r11,r12,MSR_IR|MSR_DR; \
std r0,PPC_LR_STKOFF(r1); \
li r0,token; \
beq opal_real_call; \
OPAL_BRANCH(opal_tracepoint_entry) \
DO_OPAL_CALL()
opal_return:
/*
* Fixup endian on OPAL return... we should be able to simplify
* this by instead converting the below trampoline to a set of
* bytes (always BE) since MSR:LE will end up fixed up as a side
* effect of the rfid.
*/
FIXUP_ENDIAN_HV
ld r2,PACATOC(r13);
lwz r4,8(r1);
ld r5,PPC_LR_STKOFF(r1);
ld r6,PACASAVEDMSR(r13);
mtcr r4;
mtspr SPRN_HSRR0,r5;
mtspr SPRN_HSRR1,r6;
hrfid
opal_real_call:
mfcr r11
stw r11,8(r1)
/* Set opal return address */
LOAD_REG_ADDR(r11, opal_return_realmode)
mtlr r11
li r11,MSR_LE
andc r12,r12,r11
mtspr SPRN_HSRR1,r12
LOAD_REG_ADDR(r11,opal)
ld r12,8(r11)
ld r2,0(r11)
mtspr SPRN_HSRR0,r12
hrfid
opal_return_realmode:
FIXUP_ENDIAN_HV
ld r2,PACATOC(r13);
lwz r11,8(r1);
ld r12,PPC_LR_STKOFF(r1)
mtcr r11;
mtlr r12
blr
#ifdef CONFIG_TRACEPOINTS
opal_tracepoint_entry:
stdu r1,-STACKFRAMESIZE(r1)
std r0,STK_REG(R23)(r1)
std r3,STK_REG(R24)(r1)
std r4,STK_REG(R25)(r1)
std r5,STK_REG(R26)(r1)
std r6,STK_REG(R27)(r1)
std r7,STK_REG(R28)(r1)
std r8,STK_REG(R29)(r1)
std r9,STK_REG(R30)(r1)
std r10,STK_REG(R31)(r1)
mr r3,r0
addi r4,r1,STK_REG(R24)
bl __trace_opal_entry
ld r0,STK_REG(R23)(r1)
ld r3,STK_REG(R24)(r1)
ld r4,STK_REG(R25)(r1)
ld r5,STK_REG(R26)(r1)
ld r6,STK_REG(R27)(r1)
ld r7,STK_REG(R28)(r1)
ld r8,STK_REG(R29)(r1)
ld r9,STK_REG(R30)(r1)
ld r10,STK_REG(R31)(r1)
/* setup LR so we return via tracepoint_return */
LOAD_REG_ADDR(r11,opal_tracepoint_return)
std r11,16(r1)
mfmsr r12
DO_OPAL_CALL()
opal_tracepoint_return:
std r3,STK_REG(R31)(r1)
mr r4,r3
ld r3,STK_REG(R23)(r1)
bl __trace_opal_exit
ld r3,STK_REG(R31)(r1)
addi r1,r1,STACKFRAMESIZE
ld r0,16(r1)
mtlr r0
blr
#endif
OPAL_CALL(opal_invalid_call, OPAL_INVALID_CALL);
OPAL_CALL(opal_console_write, OPAL_CONSOLE_WRITE);
OPAL_CALL(opal_console_read, OPAL_CONSOLE_READ);
OPAL_CALL(opal_console_write_buffer_space, OPAL_CONSOLE_WRITE_BUFFER_SPACE);
OPAL_CALL(opal_rtc_read, OPAL_RTC_READ);
OPAL_CALL(opal_rtc_write, OPAL_RTC_WRITE);
OPAL_CALL(opal_cec_power_down, OPAL_CEC_POWER_DOWN);
OPAL_CALL(opal_cec_reboot, OPAL_CEC_REBOOT);
OPAL_CALL(opal_cec_reboot2, OPAL_CEC_REBOOT2);
OPAL_CALL(opal_read_nvram, OPAL_READ_NVRAM);
OPAL_CALL(opal_write_nvram, OPAL_WRITE_NVRAM);
OPAL_CALL(opal_handle_interrupt, OPAL_HANDLE_INTERRUPT);
OPAL_CALL(opal_poll_events, OPAL_POLL_EVENTS);
OPAL_CALL(opal_pci_set_hub_tce_memory, OPAL_PCI_SET_HUB_TCE_MEMORY);
OPAL_CALL(opal_pci_set_phb_tce_memory, OPAL_PCI_SET_PHB_TCE_MEMORY);
OPAL_CALL(opal_pci_config_read_byte, OPAL_PCI_CONFIG_READ_BYTE);
OPAL_CALL(opal_pci_config_read_half_word, OPAL_PCI_CONFIG_READ_HALF_WORD);
OPAL_CALL(opal_pci_config_read_word, OPAL_PCI_CONFIG_READ_WORD);
OPAL_CALL(opal_pci_config_write_byte, OPAL_PCI_CONFIG_WRITE_BYTE);
OPAL_CALL(opal_pci_config_write_half_word, OPAL_PCI_CONFIG_WRITE_HALF_WORD);
OPAL_CALL(opal_pci_config_write_word, OPAL_PCI_CONFIG_WRITE_WORD);
OPAL_CALL(opal_set_xive, OPAL_SET_XIVE);
OPAL_CALL(opal_get_xive, OPAL_GET_XIVE);
OPAL_CALL(opal_register_exception_handler, OPAL_REGISTER_OPAL_EXCEPTION_HANDLER);
OPAL_CALL(opal_pci_eeh_freeze_status, OPAL_PCI_EEH_FREEZE_STATUS);
OPAL_CALL(opal_pci_eeh_freeze_clear, OPAL_PCI_EEH_FREEZE_CLEAR);
OPAL_CALL(opal_pci_eeh_freeze_set, OPAL_PCI_EEH_FREEZE_SET);
OPAL_CALL(opal_pci_err_inject, OPAL_PCI_ERR_INJECT);
OPAL_CALL(opal_pci_shpc, OPAL_PCI_SHPC);
OPAL_CALL(opal_pci_phb_mmio_enable, OPAL_PCI_PHB_MMIO_ENABLE);
OPAL_CALL(opal_pci_set_phb_mem_window, OPAL_PCI_SET_PHB_MEM_WINDOW);
OPAL_CALL(opal_pci_map_pe_mmio_window, OPAL_PCI_MAP_PE_MMIO_WINDOW);
OPAL_CALL(opal_pci_set_phb_table_memory, OPAL_PCI_SET_PHB_TABLE_MEMORY);
OPAL_CALL(opal_pci_set_pe, OPAL_PCI_SET_PE);
OPAL_CALL(opal_pci_set_peltv, OPAL_PCI_SET_PELTV);
OPAL_CALL(opal_pci_set_mve, OPAL_PCI_SET_MVE);
OPAL_CALL(opal_pci_set_mve_enable, OPAL_PCI_SET_MVE_ENABLE);
OPAL_CALL(opal_pci_get_xive_reissue, OPAL_PCI_GET_XIVE_REISSUE);
OPAL_CALL(opal_pci_set_xive_reissue, OPAL_PCI_SET_XIVE_REISSUE);
OPAL_CALL(opal_pci_set_xive_pe, OPAL_PCI_SET_XIVE_PE);
OPAL_CALL(opal_get_xive_source, OPAL_GET_XIVE_SOURCE);
OPAL_CALL(opal_get_msi_32, OPAL_GET_MSI_32);
OPAL_CALL(opal_get_msi_64, OPAL_GET_MSI_64);
OPAL_CALL(opal_start_cpu, OPAL_START_CPU);
OPAL_CALL(opal_query_cpu_status, OPAL_QUERY_CPU_STATUS);
OPAL_CALL(opal_write_oppanel, OPAL_WRITE_OPPANEL);
OPAL_CALL(opal_pci_map_pe_dma_window, OPAL_PCI_MAP_PE_DMA_WINDOW);
OPAL_CALL(opal_pci_map_pe_dma_window_real, OPAL_PCI_MAP_PE_DMA_WINDOW_REAL);
OPAL_CALL(opal_pci_reset, OPAL_PCI_RESET);
OPAL_CALL(opal_pci_get_hub_diag_data, OPAL_PCI_GET_HUB_DIAG_DATA);
OPAL_CALL(opal_pci_get_phb_diag_data, OPAL_PCI_GET_PHB_DIAG_DATA);
OPAL_CALL(opal_pci_fence_phb, OPAL_PCI_FENCE_PHB);
OPAL_CALL(opal_pci_reinit, OPAL_PCI_REINIT);
OPAL_CALL(opal_pci_mask_pe_error, OPAL_PCI_MASK_PE_ERROR);
OPAL_CALL(opal_set_slot_led_status, OPAL_SET_SLOT_LED_STATUS);
OPAL_CALL(opal_get_epow_status, OPAL_GET_EPOW_STATUS);
OPAL_CALL(opal_get_dpo_status, OPAL_GET_DPO_STATUS);
OPAL_CALL(opal_set_system_attention_led, OPAL_SET_SYSTEM_ATTENTION_LED);
OPAL_CALL(opal_pci_next_error, OPAL_PCI_NEXT_ERROR);
OPAL_CALL(opal_pci_poll, OPAL_PCI_POLL);
OPAL_CALL(opal_pci_msi_eoi, OPAL_PCI_MSI_EOI);
OPAL_CALL(opal_pci_get_phb_diag_data2, OPAL_PCI_GET_PHB_DIAG_DATA2);
OPAL_CALL(opal_xscom_read, OPAL_XSCOM_READ);
OPAL_CALL(opal_xscom_write, OPAL_XSCOM_WRITE);
OPAL_CALL(opal_lpc_read, OPAL_LPC_READ);
OPAL_CALL(opal_lpc_write, OPAL_LPC_WRITE);
OPAL_CALL(opal_return_cpu, OPAL_RETURN_CPU);
OPAL_CALL(opal_reinit_cpus, OPAL_REINIT_CPUS);
OPAL_CALL(opal_read_elog, OPAL_ELOG_READ);
OPAL_CALL(opal_send_ack_elog, OPAL_ELOG_ACK);
OPAL_CALL(opal_get_elog_size, OPAL_ELOG_SIZE);
OPAL_CALL(opal_resend_pending_logs, OPAL_ELOG_RESEND);
OPAL_CALL(opal_write_elog, OPAL_ELOG_WRITE);
OPAL_CALL(opal_validate_flash, OPAL_FLASH_VALIDATE);
OPAL_CALL(opal_manage_flash, OPAL_FLASH_MANAGE);
OPAL_CALL(opal_update_flash, OPAL_FLASH_UPDATE);
OPAL_CALL(opal_resync_timebase, OPAL_RESYNC_TIMEBASE);
OPAL_CALL(opal_check_token, OPAL_CHECK_TOKEN);
OPAL_CALL(opal_dump_init, OPAL_DUMP_INIT);
OPAL_CALL(opal_dump_info, OPAL_DUMP_INFO);
OPAL_CALL(opal_dump_info2, OPAL_DUMP_INFO2);
OPAL_CALL(opal_dump_read, OPAL_DUMP_READ);
OPAL_CALL(opal_dump_ack, OPAL_DUMP_ACK);
OPAL_CALL(opal_get_msg, OPAL_GET_MSG);
OPAL_CALL(opal_write_oppanel_async, OPAL_WRITE_OPPANEL_ASYNC);
OPAL_CALL(opal_check_completion, OPAL_CHECK_ASYNC_COMPLETION);
OPAL_CALL(opal_dump_resend_notification, OPAL_DUMP_RESEND);
OPAL_CALL(opal_sync_host_reboot, OPAL_SYNC_HOST_REBOOT);
OPAL_CALL(opal_sensor_read, OPAL_SENSOR_READ);
OPAL_CALL(opal_get_param, OPAL_GET_PARAM);
OPAL_CALL(opal_set_param, OPAL_SET_PARAM);
OPAL_CALL(opal_handle_hmi, OPAL_HANDLE_HMI);
OPAL_CALL(opal_config_cpu_idle_state, OPAL_CONFIG_CPU_IDLE_STATE);
OPAL_CALL(opal_slw_set_reg, OPAL_SLW_SET_REG);
OPAL_CALL(opal_register_dump_region, OPAL_REGISTER_DUMP_REGION);
OPAL_CALL(opal_unregister_dump_region, OPAL_UNREGISTER_DUMP_REGION);
OPAL_CALL(opal_pci_set_phb_cxl_mode, OPAL_PCI_SET_PHB_CAPI_MODE);
OPAL_CALL(opal_tpo_write, OPAL_WRITE_TPO);
OPAL_CALL(opal_tpo_read, OPAL_READ_TPO);
OPAL_CALL(opal_ipmi_send, OPAL_IPMI_SEND);
OPAL_CALL(opal_ipmi_recv, OPAL_IPMI_RECV);
OPAL_CALL(opal_i2c_request, OPAL_I2C_REQUEST);
OPAL_CALL(opal_flash_read, OPAL_FLASH_READ);
OPAL_CALL(opal_flash_write, OPAL_FLASH_WRITE);
OPAL_CALL(opal_flash_erase, OPAL_FLASH_ERASE);
OPAL_CALL(opal_prd_msg, OPAL_PRD_MSG);
OPAL_CALL(opal_leds_get_ind, OPAL_LEDS_GET_INDICATOR);
OPAL_CALL(opal_leds_set_ind, OPAL_LEDS_SET_INDICATOR);
OPAL_CALL(opal_console_flush, OPAL_CONSOLE_FLUSH);
OPAL_CALL(opal_get_device_tree, OPAL_GET_DEVICE_TREE);
OPAL_CALL(opal_pci_get_presence_state, OPAL_PCI_GET_PRESENCE_STATE);
OPAL_CALL(opal_pci_get_power_state, OPAL_PCI_GET_POWER_STATE);
OPAL_CALL(opal_pci_set_power_state, OPAL_PCI_SET_POWER_STATE);
OPAL_CALL(opal_int_get_xirr, OPAL_INT_GET_XIRR);
OPAL_CALL(opal_int_set_cppr, OPAL_INT_SET_CPPR);
OPAL_CALL(opal_int_eoi, OPAL_INT_EOI);
OPAL_CALL(opal_int_set_mfrr, OPAL_INT_SET_MFRR);
OPAL_CALL(opal_pci_tce_kill, OPAL_PCI_TCE_KILL);
OPAL_CALL(opal_nmmu_set_ptcr, OPAL_NMMU_SET_PTCR);
OPAL_CALL(opal_xive_reset, OPAL_XIVE_RESET);
OPAL_CALL(opal_xive_get_irq_info, OPAL_XIVE_GET_IRQ_INFO);
OPAL_CALL(opal_xive_get_irq_config, OPAL_XIVE_GET_IRQ_CONFIG);
OPAL_CALL(opal_xive_set_irq_config, OPAL_XIVE_SET_IRQ_CONFIG);
OPAL_CALL(opal_xive_get_queue_info, OPAL_XIVE_GET_QUEUE_INFO);
OPAL_CALL(opal_xive_set_queue_info, OPAL_XIVE_SET_QUEUE_INFO);
OPAL_CALL(opal_xive_donate_page, OPAL_XIVE_DONATE_PAGE);
OPAL_CALL(opal_xive_alloc_vp_block, OPAL_XIVE_ALLOCATE_VP_BLOCK);
OPAL_CALL(opal_xive_free_vp_block, OPAL_XIVE_FREE_VP_BLOCK);
OPAL_CALL(opal_xive_allocate_irq, OPAL_XIVE_ALLOCATE_IRQ);
OPAL_CALL(opal_xive_free_irq, OPAL_XIVE_FREE_IRQ);
OPAL_CALL(opal_xive_get_vp_info, OPAL_XIVE_GET_VP_INFO);
OPAL_CALL(opal_xive_set_vp_info, OPAL_XIVE_SET_VP_INFO);
OPAL_CALL(opal_xive_sync, OPAL_XIVE_SYNC);
OPAL_CALL(opal_xive_dump, OPAL_XIVE_DUMP);
OPAL_CALL(opal_signal_system_reset, OPAL_SIGNAL_SYSTEM_RESET);
OPAL_CALL(opal_npu_init_context, OPAL_NPU_INIT_CONTEXT);
OPAL_CALL(opal_npu_destroy_context, OPAL_NPU_DESTROY_CONTEXT);
OPAL_CALL(opal_npu_map_lpar, OPAL_NPU_MAP_LPAR);
OPAL_CALL(opal_imc_counters_init, OPAL_IMC_COUNTERS_INIT);
OPAL_CALL(opal_imc_counters_start, OPAL_IMC_COUNTERS_START);
OPAL_CALL(opal_imc_counters_stop, OPAL_IMC_COUNTERS_STOP);
OPAL_CALL(opal_pci_set_p2p, OPAL_PCI_SET_P2P);
OPAL_CALL(opal_get_powercap, OPAL_GET_POWERCAP);
OPAL_CALL(opal_set_powercap, OPAL_SET_POWERCAP);
OPAL_CALL(opal_get_power_shift_ratio, OPAL_GET_POWER_SHIFT_RATIO);
OPAL_CALL(opal_set_power_shift_ratio, OPAL_SET_POWER_SHIFT_RATIO);
OPAL_CALL(opal_sensor_group_clear, OPAL_SENSOR_GROUP_CLEAR);
|
