projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 14a43e69 BH |
1 | /* |
| 2 | * PowerNV OPAL API wrappers | |
| 3 | * | |
| 4 | * Copyright 2011 IBM Corp. | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public License | |
| 8 | * as published by the Free Software Foundation; either version | |
| 9 | * 2 of the License, or (at your option) any later version. | |
| 10 | */ | |
| 11 | ||
| 12 | #include <asm/ppc_asm.h> | |
| 13 | #include <asm/hvcall.h> | |
| 14 | #include <asm/asm-offsets.h> | |
| 15 | #include <asm/opal.h> | |
| c49f6353 AB |
16 | #include <asm/jump_label.h> |
| 17 | ||
| 18 | .section ".text" | |
| 19 | ||
| 20 | #ifdef CONFIG_TRACEPOINTS | |
| 1bc9e47a | 21 | #ifdef HAVE_JUMP_LABEL |
| c49f6353 AB |
22 | #define OPAL_BRANCH(LABEL) \ |
| 23 | ARCH_STATIC_BRANCH(LABEL, opal_tracepoint_key) | |
| 24 | #else | |
| 25 | ||
| 26 | .section ".toc","aw" | |
| 27 | ||
| 28 | .globl opal_tracepoint_refcount | |
| 29 | opal_tracepoint_refcount: | |
| 30 | .llong 0 | |
| 31 | ||
| 32 | .section ".text" | |
| 33 | ||
| 34 | /* | |
| 35 | * We branch around this in early init by using an unconditional cpu | |
| 36 | * feature. | |
| 37 | */ | |
| 38 | #define OPAL_BRANCH(LABEL) \ | |
| 39 | BEGIN_FTR_SECTION; \ | |
| 40 | b 1f; \ | |
| 41 | END_FTR_SECTION(0, 1); \ | |
| 42 | ld r12,opal_tracepoint_refcount@toc(r2); \ | |
| 43 | std r12,32(r1); \ | |
| 44 | cmpdi r12,0; \ | |
| 45 | bne- LABEL; \ | |
| 46 | 1: | |
| 47 | ||
| 48 | #endif | |
| 49 | ||
| 50 | #else | |
| 51 | #define OPAL_BRANCH(LABEL) | |
| 52 | #endif | |
| 14a43e69 BH |
53 | |
| 54 | /* TODO: | |
| 55 | * | |
| 56 | * - Trace irqs in/off (needs saving/restoring all args, argh...) | |
| 57 | * - Get r11 feed up by Dave so I can have better register usage | |
| 58 | */ | |
| c49f6353 | 59 | |
| 14a43e69 | 60 | #define OPAL_CALL(name, token) \ |
| 19d36c21 | 61 | _GLOBAL_TOC(name); \ |
| 14a43e69 | 62 | mflr r0; \ |
| 14a43e69 | 63 | std r0,16(r1); \ |
| c49f6353 AB |
64 | li r0,token; \ |
| 65 | OPAL_BRANCH(opal_tracepoint_entry) \ | |
| 66 | mfcr r12; \ | |
| bbe30b3b | 67 | stw r12,8(r1); \ |
| 14a43e69 | 68 | std r1,PACAR1(r13); \ |
| c49f6353 | 69 | li r11,0; \ |
| 14a43e69 | 70 | mfmsr r12; \ |
| c49f6353 | 71 | ori r11,r11,MSR_EE; \ |
| 14a43e69 | 72 | std r12,PACASAVEDMSR(r13); \ |
| c49f6353 | 73 | andc r12,r12,r11; \ |
| 14a43e69 | 74 | mtmsrd r12,1; \ |
| c49f6353 AB |
75 | LOAD_REG_ADDR(r11,opal_return); \ |
| 76 | mtlr r11; \ | |
| 77 | li r11,MSR_DR|MSR_IR|MSR_LE;\ | |
| 78 | andc r12,r12,r11; \ | |
| 14a43e69 BH |
79 | mtspr SPRN_HSRR1,r12; \ |
| 80 | LOAD_REG_ADDR(r11,opal); \ | |
| 81 | ld r12,8(r11); \ | |
| 82 | ld r2,0(r11); \ | |
| 83 | mtspr SPRN_HSRR0,r12; \ | |
| 84 | hrfid | |
| 85 | ||
| ad0289e4 | 86 | opal_return: |
| be401b37 BH |
87 | /* |
| 88 | * Fixup endian on OPAL return... we should be able to simplify | |
| 89 | * this by instead converting the below trampoline to a set of | |
| 90 | * bytes (always BE) since MSR:LE will end up fixed up as a side | |
| 91 | * effect of the rfid. | |
| 92 | */ | |
| 93 | FIXUP_ENDIAN | |
| 14a43e69 | 94 | ld r2,PACATOC(r13); |
| bbe30b3b | 95 | lwz r4,8(r1); |
| 14a43e69 BH |
96 | ld r5,16(r1); |
| 97 | ld r6,PACASAVEDMSR(r13); | |
| 98 | mtspr SPRN_SRR0,r5; | |
| 99 | mtspr SPRN_SRR1,r6; | |
| 100 | mtcr r4; | |
| 101 | rfid | |
| 102 | ||
| c49f6353 AB |
103 | #ifdef CONFIG_TRACEPOINTS |
| 104 | opal_tracepoint_entry: | |
| 105 | stdu r1,-STACKFRAMESIZE(r1) | |
| 106 | std r0,STK_REG(R23)(r1) | |
| 107 | std r3,STK_REG(R24)(r1) | |
| 108 | std r4,STK_REG(R25)(r1) | |
| 109 | std r5,STK_REG(R26)(r1) | |
| 110 | std r6,STK_REG(R27)(r1) | |
| 111 | std r7,STK_REG(R28)(r1) | |
| 112 | std r8,STK_REG(R29)(r1) | |
| 113 | std r9,STK_REG(R30)(r1) | |
| 114 | std r10,STK_REG(R31)(r1) | |
| 115 | mr r3,r0 | |
| 116 | addi r4,r1,STK_REG(R24) | |
| 117 | bl __trace_opal_entry | |
| 118 | ld r0,STK_REG(R23)(r1) | |
| 119 | ld r3,STK_REG(R24)(r1) | |
| 120 | ld r4,STK_REG(R25)(r1) | |
| 121 | ld r5,STK_REG(R26)(r1) | |
| 122 | ld r6,STK_REG(R27)(r1) | |
| 123 | ld r7,STK_REG(R28)(r1) | |
| 124 | ld r8,STK_REG(R29)(r1) | |
| 125 | ld r9,STK_REG(R30)(r1) | |
| 126 | ld r10,STK_REG(R31)(r1) | |
| 127 | LOAD_REG_ADDR(r11,opal_tracepoint_return) | |
| 128 | mfcr r12 | |
| 129 | std r11,16(r1) | |
| 130 | stw r12,8(r1) | |
| 131 | std r1,PACAR1(r13) | |
| 132 | li r11,0 | |
| 133 | mfmsr r12 | |
| 134 | ori r11,r11,MSR_EE | |
| 135 | std r12,PACASAVEDMSR(r13) | |
| 136 | andc r12,r12,r11 | |
| 137 | mtmsrd r12,1 | |
| 138 | LOAD_REG_ADDR(r11,opal_return) | |
| 139 | mtlr r11 | |
| 140 | li r11,MSR_DR|MSR_IR|MSR_LE | |
| 141 | andc r12,r12,r11 | |
| 142 | mtspr SPRN_HSRR1,r12 | |
| 143 | LOAD_REG_ADDR(r11,opal) | |
| 144 | ld r12,8(r11) | |
| 145 | ld r2,0(r11) | |
| 146 | mtspr SPRN_HSRR0,r12 | |
| 147 | hrfid | |
| 148 | ||
| 149 | opal_tracepoint_return: | |
| 150 | std r3,STK_REG(R31)(r1) | |
| 151 | mr r4,r3 | |
| 152 | ld r0,STK_REG(R23)(r1) | |
| 153 | bl __trace_opal_exit | |
| 154 | ld r3,STK_REG(R31)(r1) | |
| 155 | addi r1,r1,STACKFRAMESIZE | |
| 156 | ld r0,16(r1) | |
| 157 | mtlr r0 | |
| 158 | blr | |
| 159 | #endif | |
| 160 | ||
| e28b05e7 | 161 | OPAL_CALL(opal_invalid_call, OPAL_INVALID_CALL); |
| 14a43e69 BH |
162 | OPAL_CALL(opal_console_write, OPAL_CONSOLE_WRITE); |
| 163 | OPAL_CALL(opal_console_read, OPAL_CONSOLE_READ); | |
| 164 | OPAL_CALL(opal_console_write_buffer_space, OPAL_CONSOLE_WRITE_BUFFER_SPACE); | |
| 165 | OPAL_CALL(opal_rtc_read, OPAL_RTC_READ); | |
| 166 | OPAL_CALL(opal_rtc_write, OPAL_RTC_WRITE); | |
| 167 | OPAL_CALL(opal_cec_power_down, OPAL_CEC_POWER_DOWN); | |
| 168 | OPAL_CALL(opal_cec_reboot, OPAL_CEC_REBOOT); | |
| 169 | OPAL_CALL(opal_read_nvram, OPAL_READ_NVRAM); | |
| 170 | OPAL_CALL(opal_write_nvram, OPAL_WRITE_NVRAM); | |
| 171 | OPAL_CALL(opal_handle_interrupt, OPAL_HANDLE_INTERRUPT); | |
| 172 | OPAL_CALL(opal_poll_events, OPAL_POLL_EVENTS); | |
| 173 | OPAL_CALL(opal_pci_set_hub_tce_memory, OPAL_PCI_SET_HUB_TCE_MEMORY); | |
| 174 | OPAL_CALL(opal_pci_set_phb_tce_memory, OPAL_PCI_SET_PHB_TCE_MEMORY); | |
| 175 | OPAL_CALL(opal_pci_config_read_byte, OPAL_PCI_CONFIG_READ_BYTE); | |
| 176 | OPAL_CALL(opal_pci_config_read_half_word, OPAL_PCI_CONFIG_READ_HALF_WORD); | |
| 177 | OPAL_CALL(opal_pci_config_read_word, OPAL_PCI_CONFIG_READ_WORD); | |
| 178 | OPAL_CALL(opal_pci_config_write_byte, OPAL_PCI_CONFIG_WRITE_BYTE); | |
| 179 | OPAL_CALL(opal_pci_config_write_half_word, OPAL_PCI_CONFIG_WRITE_HALF_WORD); | |
| 180 | OPAL_CALL(opal_pci_config_write_word, OPAL_PCI_CONFIG_WRITE_WORD); | |
| 181 | OPAL_CALL(opal_set_xive, OPAL_SET_XIVE); | |
| 182 | OPAL_CALL(opal_get_xive, OPAL_GET_XIVE); | |
| 183 | OPAL_CALL(opal_register_exception_handler, OPAL_REGISTER_OPAL_EXCEPTION_HANDLER); | |
| 184 | OPAL_CALL(opal_pci_eeh_freeze_status, OPAL_PCI_EEH_FREEZE_STATUS); | |
| 185 | OPAL_CALL(opal_pci_eeh_freeze_clear, OPAL_PCI_EEH_FREEZE_CLEAR); | |
| 5ca27efb | 186 | OPAL_CALL(opal_pci_eeh_freeze_set, OPAL_PCI_EEH_FREEZE_SET); |
| 5b642340 | 187 | OPAL_CALL(opal_pci_err_inject, OPAL_PCI_ERR_INJECT); |
| 14a43e69 BH |
188 | OPAL_CALL(opal_pci_shpc, OPAL_PCI_SHPC); |
| 189 | OPAL_CALL(opal_pci_phb_mmio_enable, OPAL_PCI_PHB_MMIO_ENABLE); | |
| 190 | OPAL_CALL(opal_pci_set_phb_mem_window, OPAL_PCI_SET_PHB_MEM_WINDOW); | |
| 191 | OPAL_CALL(opal_pci_map_pe_mmio_window, OPAL_PCI_MAP_PE_MMIO_WINDOW); | |
| 192 | OPAL_CALL(opal_pci_set_phb_table_memory, OPAL_PCI_SET_PHB_TABLE_MEMORY); | |
| 193 | OPAL_CALL(opal_pci_set_pe, OPAL_PCI_SET_PE); | |
| 194 | OPAL_CALL(opal_pci_set_peltv, OPAL_PCI_SET_PELTV); | |
| 195 | OPAL_CALL(opal_pci_set_mve, OPAL_PCI_SET_MVE); | |
| 196 | OPAL_CALL(opal_pci_set_mve_enable, OPAL_PCI_SET_MVE_ENABLE); | |
| 197 | OPAL_CALL(opal_pci_get_xive_reissue, OPAL_PCI_GET_XIVE_REISSUE); | |
| 198 | OPAL_CALL(opal_pci_set_xive_reissue, OPAL_PCI_SET_XIVE_REISSUE); | |
| 199 | OPAL_CALL(opal_pci_set_xive_pe, OPAL_PCI_SET_XIVE_PE); | |
| 200 | OPAL_CALL(opal_get_xive_source, OPAL_GET_XIVE_SOURCE); | |
| 201 | OPAL_CALL(opal_get_msi_32, OPAL_GET_MSI_32); | |
| 202 | OPAL_CALL(opal_get_msi_64, OPAL_GET_MSI_64); | |
| 203 | OPAL_CALL(opal_start_cpu, OPAL_START_CPU); | |
| 204 | OPAL_CALL(opal_query_cpu_status, OPAL_QUERY_CPU_STATUS); | |
| 205 | OPAL_CALL(opal_write_oppanel, OPAL_WRITE_OPPANEL); | |
| 206 | OPAL_CALL(opal_pci_map_pe_dma_window, OPAL_PCI_MAP_PE_DMA_WINDOW); | |
| 207 | OPAL_CALL(opal_pci_map_pe_dma_window_real, OPAL_PCI_MAP_PE_DMA_WINDOW_REAL); | |
| 208 | OPAL_CALL(opal_pci_reset, OPAL_PCI_RESET); | |
| f11fe552 BH |
209 | OPAL_CALL(opal_pci_get_hub_diag_data, OPAL_PCI_GET_HUB_DIAG_DATA); |
| 210 | OPAL_CALL(opal_pci_get_phb_diag_data, OPAL_PCI_GET_PHB_DIAG_DATA); | |
| 211 | OPAL_CALL(opal_pci_fence_phb, OPAL_PCI_FENCE_PHB); | |
| 212 | OPAL_CALL(opal_pci_reinit, OPAL_PCI_REINIT); | |
| 213 | OPAL_CALL(opal_pci_mask_pe_error, OPAL_PCI_MASK_PE_ERROR); | |
| 214 | OPAL_CALL(opal_set_slot_led_status, OPAL_SET_SLOT_LED_STATUS); | |
| 215 | OPAL_CALL(opal_get_epow_status, OPAL_GET_EPOW_STATUS); | |
| 216 | OPAL_CALL(opal_set_system_attention_led, OPAL_SET_SYSTEM_ATTENTION_LED); | |
| 23773230 GS |
217 | OPAL_CALL(opal_pci_next_error, OPAL_PCI_NEXT_ERROR); |
| 218 | OPAL_CALL(opal_pci_poll, OPAL_PCI_POLL); | |
| 137436c9 | 219 | OPAL_CALL(opal_pci_msi_eoi, OPAL_PCI_MSI_EOI); |
| 23773230 | 220 | OPAL_CALL(opal_pci_get_phb_diag_data2, OPAL_PCI_GET_PHB_DIAG_DATA2); |
| cc0efb57 BH |
221 | OPAL_CALL(opal_xscom_read, OPAL_XSCOM_READ); |
| 222 | OPAL_CALL(opal_xscom_write, OPAL_XSCOM_WRITE); | |
| 223 | OPAL_CALL(opal_lpc_read, OPAL_LPC_READ); | |
| 224 | OPAL_CALL(opal_lpc_write, OPAL_LPC_WRITE); | |
| 13906db6 | 225 | OPAL_CALL(opal_return_cpu, OPAL_RETURN_CPU); |
| 4926616c | 226 | OPAL_CALL(opal_reinit_cpus, OPAL_REINIT_CPUS); |
| 774fea1a SS |
227 | OPAL_CALL(opal_read_elog, OPAL_ELOG_READ); |
| 228 | OPAL_CALL(opal_send_ack_elog, OPAL_ELOG_ACK); | |
| 229 | OPAL_CALL(opal_get_elog_size, OPAL_ELOG_SIZE); | |
| 230 | OPAL_CALL(opal_resend_pending_logs, OPAL_ELOG_RESEND); | |
| 231 | OPAL_CALL(opal_write_elog, OPAL_ELOG_WRITE); | |
| 50bd6153 VH |
232 | OPAL_CALL(opal_validate_flash, OPAL_FLASH_VALIDATE); |
| 233 | OPAL_CALL(opal_manage_flash, OPAL_FLASH_MANAGE); | |
| 234 | OPAL_CALL(opal_update_flash, OPAL_FLASH_UPDATE); | |
| 97eb001f | 235 | OPAL_CALL(opal_resync_timebase, OPAL_RESYNC_TIMEBASE); |
| bffe6bda | 236 | OPAL_CALL(opal_check_token, OPAL_CHECK_TOKEN); |
| c7e64b9c SS |
237 | OPAL_CALL(opal_dump_init, OPAL_DUMP_INIT); |
| 238 | OPAL_CALL(opal_dump_info, OPAL_DUMP_INFO); | |
| 239 | OPAL_CALL(opal_dump_info2, OPAL_DUMP_INFO2); | |
| 240 | OPAL_CALL(opal_dump_read, OPAL_DUMP_READ); | |
| 241 | OPAL_CALL(opal_dump_ack, OPAL_DUMP_ACK); | |
| 24366360 MS |
242 | OPAL_CALL(opal_get_msg, OPAL_GET_MSG); |
| 243 | OPAL_CALL(opal_check_completion, OPAL_CHECK_ASYNC_COMPLETION); | |
| c7e64b9c | 244 | OPAL_CALL(opal_dump_resend_notification, OPAL_DUMP_RESEND); |
| f7d98d18 | 245 | OPAL_CALL(opal_sync_host_reboot, OPAL_SYNC_HOST_REBOOT); |
| 7224adbb | 246 | OPAL_CALL(opal_sensor_read, OPAL_SENSOR_READ); |
| 4029cd66 NG |
247 | OPAL_CALL(opal_get_param, OPAL_GET_PARAM); |
| 248 | OPAL_CALL(opal_set_param, OPAL_SET_PARAM); | |
| 0ef95b41 | 249 | OPAL_CALL(opal_handle_hmi, OPAL_HANDLE_HMI); |
| b09c2ec4 VH |
250 | OPAL_CALL(opal_register_dump_region, OPAL_REGISTER_DUMP_REGION); |
| 251 | OPAL_CALL(opal_unregister_dump_region, OPAL_UNREGISTER_DUMP_REGION); | |
| 09521736 | 252 | OPAL_CALL(opal_pci_set_phb_cxl_mode, OPAL_PCI_SET_PHB_CXL_MODE); |
| 16b1d26e NG |
253 | OPAL_CALL(opal_tpo_write, OPAL_WRITE_TPO); |
| 254 | OPAL_CALL(opal_tpo_read, OPAL_READ_TPO); | |
| 608b286d JK |
255 | OPAL_CALL(opal_ipmi_send, OPAL_IPMI_SEND); |
| 256 | OPAL_CALL(opal_ipmi_recv, OPAL_IPMI_RECV); | |
| 47083450 | 257 | OPAL_CALL(opal_i2c_request, OPAL_I2C_REQUEST); |