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> 16 17/* TODO: 18 * 19 * - Trace irqs in/off (needs saving/restoring all args, argh...) 20 * - Get r11 feed up by Dave so I can have better register usage 21 */ 22#define OPAL_CALL(name, token) \ 23 _GLOBAL(name); \ 24 mflr r0; \ 25 mfcr r12; \ 26 std r0,16(r1); \ 27 stw r12,8(r1); \ 28 std r1,PACAR1(r13); \ 29 li r0,0; \ 30 mfmsr r12; \ 31 ori r0,r0,MSR_EE; \ 32 std r12,PACASAVEDMSR(r13); \ 33 andc r12,r12,r0; \ 34 mtmsrd r12,1; \ 35 LOAD_REG_ADDR(r0,opal_return); \ 36 mtlr r0; \ 37 li r0,MSR_DR|MSR_IR|MSR_LE;\ 38 andc r12,r12,r0; \ 39 li r0,token; \ 40 mtspr SPRN_HSRR1,r12; \ 41 LOAD_REG_ADDR(r11,opal); \ 42 ld r12,8(r11); \ 43 ld r2,0(r11); \ 44 mtspr SPRN_HSRR0,r12; \ 45 hrfid 46 47opal_return: 48 /* 49 * Fixup endian on OPAL return... we should be able to simplify 50 * this by instead converting the below trampoline to a set of 51 * bytes (always BE) since MSR:LE will end up fixed up as a side 52 * effect of the rfid. 53 */ 54 FIXUP_ENDIAN 55 ld r2,PACATOC(r13); 56 lwz r4,8(r1); 57 ld r5,16(r1); 58 ld r6,PACASAVEDMSR(r13); 59 mtspr SPRN_SRR0,r5; 60 mtspr SPRN_SRR1,r6; 61 mtcr r4; 62 rfid 63 64OPAL_CALL(opal_invalid_call, OPAL_INVALID_CALL); 65OPAL_CALL(opal_console_write, OPAL_CONSOLE_WRITE); 66OPAL_CALL(opal_console_read, OPAL_CONSOLE_READ); 67OPAL_CALL(opal_console_write_buffer_space, OPAL_CONSOLE_WRITE_BUFFER_SPACE); 68OPAL_CALL(opal_rtc_read, OPAL_RTC_READ); 69OPAL_CALL(opal_rtc_write, OPAL_RTC_WRITE); 70OPAL_CALL(opal_cec_power_down, OPAL_CEC_POWER_DOWN); 71OPAL_CALL(opal_cec_reboot, OPAL_CEC_REBOOT); 72OPAL_CALL(opal_read_nvram, OPAL_READ_NVRAM); 73OPAL_CALL(opal_write_nvram, OPAL_WRITE_NVRAM); 74OPAL_CALL(opal_handle_interrupt, OPAL_HANDLE_INTERRUPT); 75OPAL_CALL(opal_poll_events, OPAL_POLL_EVENTS); 76OPAL_CALL(opal_pci_set_hub_tce_memory, OPAL_PCI_SET_HUB_TCE_MEMORY); 77OPAL_CALL(opal_pci_set_phb_tce_memory, OPAL_PCI_SET_PHB_TCE_MEMORY); 78OPAL_CALL(opal_pci_config_read_byte, OPAL_PCI_CONFIG_READ_BYTE); 79OPAL_CALL(opal_pci_config_read_half_word, OPAL_PCI_CONFIG_READ_HALF_WORD); 80OPAL_CALL(opal_pci_config_read_word, OPAL_PCI_CONFIG_READ_WORD); 81OPAL_CALL(opal_pci_config_write_byte, OPAL_PCI_CONFIG_WRITE_BYTE); 82OPAL_CALL(opal_pci_config_write_half_word, OPAL_PCI_CONFIG_WRITE_HALF_WORD); 83OPAL_CALL(opal_pci_config_write_word, OPAL_PCI_CONFIG_WRITE_WORD); 84OPAL_CALL(opal_set_xive, OPAL_SET_XIVE); 85OPAL_CALL(opal_get_xive, OPAL_GET_XIVE); 86OPAL_CALL(opal_register_exception_handler, OPAL_REGISTER_OPAL_EXCEPTION_HANDLER); 87OPAL_CALL(opal_pci_eeh_freeze_status, OPAL_PCI_EEH_FREEZE_STATUS); 88OPAL_CALL(opal_pci_eeh_freeze_clear, OPAL_PCI_EEH_FREEZE_CLEAR); 89OPAL_CALL(opal_pci_shpc, OPAL_PCI_SHPC); 90OPAL_CALL(opal_pci_phb_mmio_enable, OPAL_PCI_PHB_MMIO_ENABLE); 91OPAL_CALL(opal_pci_set_phb_mem_window, OPAL_PCI_SET_PHB_MEM_WINDOW); 92OPAL_CALL(opal_pci_map_pe_mmio_window, OPAL_PCI_MAP_PE_MMIO_WINDOW); 93OPAL_CALL(opal_pci_set_phb_table_memory, OPAL_PCI_SET_PHB_TABLE_MEMORY); 94OPAL_CALL(opal_pci_set_pe, OPAL_PCI_SET_PE); 95OPAL_CALL(opal_pci_set_peltv, OPAL_PCI_SET_PELTV); 96OPAL_CALL(opal_pci_set_mve, OPAL_PCI_SET_MVE); 97OPAL_CALL(opal_pci_set_mve_enable, OPAL_PCI_SET_MVE_ENABLE); 98OPAL_CALL(opal_pci_get_xive_reissue, OPAL_PCI_GET_XIVE_REISSUE); 99OPAL_CALL(opal_pci_set_xive_reissue, OPAL_PCI_SET_XIVE_REISSUE); 100OPAL_CALL(opal_pci_set_xive_pe, OPAL_PCI_SET_XIVE_PE); 101OPAL_CALL(opal_get_xive_source, OPAL_GET_XIVE_SOURCE); 102OPAL_CALL(opal_get_msi_32, OPAL_GET_MSI_32); 103OPAL_CALL(opal_get_msi_64, OPAL_GET_MSI_64); 104OPAL_CALL(opal_start_cpu, OPAL_START_CPU); 105OPAL_CALL(opal_query_cpu_status, OPAL_QUERY_CPU_STATUS); 106OPAL_CALL(opal_write_oppanel, OPAL_WRITE_OPPANEL); 107OPAL_CALL(opal_pci_map_pe_dma_window, OPAL_PCI_MAP_PE_DMA_WINDOW); 108OPAL_CALL(opal_pci_map_pe_dma_window_real, OPAL_PCI_MAP_PE_DMA_WINDOW_REAL); 109OPAL_CALL(opal_pci_reset, OPAL_PCI_RESET); 110OPAL_CALL(opal_pci_get_hub_diag_data, OPAL_PCI_GET_HUB_DIAG_DATA); 111OPAL_CALL(opal_pci_get_phb_diag_data, OPAL_PCI_GET_PHB_DIAG_DATA); 112OPAL_CALL(opal_pci_fence_phb, OPAL_PCI_FENCE_PHB); 113OPAL_CALL(opal_pci_reinit, OPAL_PCI_REINIT); 114OPAL_CALL(opal_pci_mask_pe_error, OPAL_PCI_MASK_PE_ERROR); 115OPAL_CALL(opal_set_slot_led_status, OPAL_SET_SLOT_LED_STATUS); 116OPAL_CALL(opal_get_epow_status, OPAL_GET_EPOW_STATUS); 117OPAL_CALL(opal_set_system_attention_led, OPAL_SET_SYSTEM_ATTENTION_LED); 118OPAL_CALL(opal_pci_next_error, OPAL_PCI_NEXT_ERROR); 119OPAL_CALL(opal_pci_poll, OPAL_PCI_POLL); 120OPAL_CALL(opal_pci_msi_eoi, OPAL_PCI_MSI_EOI); 121OPAL_CALL(opal_pci_get_phb_diag_data2, OPAL_PCI_GET_PHB_DIAG_DATA2); 122OPAL_CALL(opal_xscom_read, OPAL_XSCOM_READ); 123OPAL_CALL(opal_xscom_write, OPAL_XSCOM_WRITE); 124OPAL_CALL(opal_lpc_read, OPAL_LPC_READ); 125OPAL_CALL(opal_lpc_write, OPAL_LPC_WRITE); 126OPAL_CALL(opal_return_cpu, OPAL_RETURN_CPU); 127OPAL_CALL(opal_reinit_cpus, OPAL_REINIT_CPUS); 128OPAL_CALL(opal_read_elog, OPAL_ELOG_READ); 129OPAL_CALL(opal_send_ack_elog, OPAL_ELOG_ACK); 130OPAL_CALL(opal_get_elog_size, OPAL_ELOG_SIZE); 131OPAL_CALL(opal_resend_pending_logs, OPAL_ELOG_RESEND); 132OPAL_CALL(opal_write_elog, OPAL_ELOG_WRITE); 133OPAL_CALL(opal_validate_flash, OPAL_FLASH_VALIDATE); 134OPAL_CALL(opal_manage_flash, OPAL_FLASH_MANAGE); 135OPAL_CALL(opal_update_flash, OPAL_FLASH_UPDATE); 136OPAL_CALL(opal_resync_timebase, OPAL_RESYNC_TIMEBASE); 137OPAL_CALL(opal_dump_init, OPAL_DUMP_INIT); 138OPAL_CALL(opal_dump_info, OPAL_DUMP_INFO); 139OPAL_CALL(opal_dump_info2, OPAL_DUMP_INFO2); 140OPAL_CALL(opal_dump_read, OPAL_DUMP_READ); 141OPAL_CALL(opal_dump_ack, OPAL_DUMP_ACK); 142OPAL_CALL(opal_get_msg, OPAL_GET_MSG); 143OPAL_CALL(opal_check_completion, OPAL_CHECK_ASYNC_COMPLETION); 144OPAL_CALL(opal_dump_resend_notification, OPAL_DUMP_RESEND); 145OPAL_CALL(opal_sync_host_reboot, OPAL_SYNC_HOST_REBOOT); 146OPAL_CALL(opal_sensor_read, OPAL_SENSOR_READ); 147OPAL_CALL(opal_get_param, OPAL_GET_PARAM); 148OPAL_CALL(opal_set_param, OPAL_SET_PARAM); 149