From 14a43e69ed257a1fadadf9fea2c05adb1686419f Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 19 Sep 2011 17:44:57 +0000 Subject: powerpc/powernv: Basic support for OPAL Add definition of OPAL interfaces along with the wrappers to call into OPAL runtime and the early device-tree parsing hook to locate the OPAL runtime firmware. Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/opal.h | 382 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 381 insertions(+), 1 deletion(-) (limited to 'arch/powerpc/include/asm/opal.h') diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index ecdb283f8b7c..c7a3202d10a0 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -37,14 +37,394 @@ extern long opal_query_takeover(u64 *hal_size, u64 *hal_align); extern long opal_do_takeover(struct opal_takeover_args *args); +struct rtas_args; extern int opal_enter_rtas(struct rtas_args *args, unsigned long data, unsigned long entry); - #endif /* __ASSEMBLY__ */ /****** OPAL APIs ******/ +/* Return codes */ +#define OPAL_SUCCESS 0 +#define OPAL_PARAMETER -1 +#define OPAL_BUSY -2 +#define OPAL_PARTIAL -3 +#define OPAL_CONSTRAINED -4 +#define OPAL_CLOSED -5 +#define OPAL_HARDWARE -6 +#define OPAL_UNSUPPORTED -7 +#define OPAL_PERMISSION -8 +#define OPAL_NO_MEM -9 +#define OPAL_RESOURCE -10 +#define OPAL_INTERNAL_ERROR -11 +#define OPAL_BUSY_EVENT -12 +#define OPAL_HARDWARE_FROZEN -13 + +/* API Tokens (in r0) */ +#define OPAL_CONSOLE_WRITE 1 +#define OPAL_CONSOLE_READ 2 +#define OPAL_RTC_READ 3 +#define OPAL_RTC_WRITE 4 +#define OPAL_CEC_POWER_DOWN 5 +#define OPAL_CEC_REBOOT 6 +#define OPAL_READ_NVRAM 7 +#define OPAL_WRITE_NVRAM 8 +#define OPAL_HANDLE_INTERRUPT 9 +#define OPAL_POLL_EVENTS 10 +#define OPAL_PCI_SET_HUB_TCE_MEMORY 11 +#define OPAL_PCI_SET_PHB_TCE_MEMORY 12 +#define OPAL_PCI_CONFIG_READ_BYTE 13 +#define OPAL_PCI_CONFIG_READ_HALF_WORD 14 +#define OPAL_PCI_CONFIG_READ_WORD 15 +#define OPAL_PCI_CONFIG_WRITE_BYTE 16 +#define OPAL_PCI_CONFIG_WRITE_HALF_WORD 17 +#define OPAL_PCI_CONFIG_WRITE_WORD 18 +#define OPAL_SET_XIVE 19 +#define OPAL_GET_XIVE 20 +#define OPAL_GET_COMPLETION_TOKEN_STATUS 21 /* obsolete */ +#define OPAL_REGISTER_OPAL_EXCEPTION_HANDLER 22 +#define OPAL_PCI_EEH_FREEZE_STATUS 23 +#define OPAL_PCI_SHPC 24 +#define OPAL_CONSOLE_WRITE_BUFFER_SPACE 25 +#define OPAL_PCI_EEH_FREEZE_CLEAR 26 +#define OPAL_PCI_PHB_MMIO_ENABLE 27 +#define OPAL_PCI_SET_PHB_MEM_WINDOW 28 +#define OPAL_PCI_MAP_PE_MMIO_WINDOW 29 +#define OPAL_PCI_SET_PHB_TABLE_MEMORY 30 +#define OPAL_PCI_SET_PE 31 +#define OPAL_PCI_SET_PELTV 32 +#define OPAL_PCI_SET_MVE 33 +#define OPAL_PCI_SET_MVE_ENABLE 34 +#define OPAL_PCI_GET_XIVE_REISSUE 35 +#define OPAL_PCI_SET_XIVE_REISSUE 36 +#define OPAL_PCI_SET_XIVE_PE 37 +#define OPAL_GET_XIVE_SOURCE 38 +#define OPAL_GET_MSI_32 39 +#define OPAL_GET_MSI_64 40 +#define OPAL_START_CPU 41 +#define OPAL_QUERY_CPU_STATUS 42 +#define OPAL_WRITE_OPPANEL 43 +#define OPAL_PCI_MAP_PE_DMA_WINDOW 44 +#define OPAL_PCI_MAP_PE_DMA_WINDOW_REAL 45 +#define OPAL_PCI_RESET 49 + +#ifndef __ASSEMBLY__ + +/* Other enums */ +enum OpalVendorApiTokens { + OPAL_START_VENDOR_API_RANGE = 1000, OPAL_END_VENDOR_API_RANGE = 1999 +}; +enum OpalFreezeState { + OPAL_EEH_STOPPED_NOT_FROZEN = 0, + OPAL_EEH_STOPPED_MMIO_FREEZE = 1, + OPAL_EEH_STOPPED_DMA_FREEZE = 2, + OPAL_EEH_STOPPED_MMIO_DMA_FREEZE = 3, + OPAL_EEH_STOPPED_RESET = 4, + OPAL_EEH_STOPPED_TEMP_UNAVAIL = 5, + OPAL_EEH_STOPPED_PERM_UNAVAIL = 6 +}; +enum OpalEehFreezeActionToken { + OPAL_EEH_ACTION_CLEAR_FREEZE_MMIO = 1, + OPAL_EEH_ACTION_CLEAR_FREEZE_DMA = 2, + OPAL_EEH_ACTION_CLEAR_FREEZE_ALL = 3 +}; +enum OpalPciStatusToken { + OPAL_EEH_PHB_NO_ERROR = 0, + OPAL_EEH_PHB_FATAL = 1, + OPAL_EEH_PHB_RECOVERABLE = 2, + OPAL_EEH_PHB_BUS_ERROR = 3, + OPAL_EEH_PCI_NO_DEVSEL = 4, + OPAL_EEH_PCI_TA = 5, + OPAL_EEH_PCIEX_UR = 6, + OPAL_EEH_PCIEX_CA = 7, + OPAL_EEH_PCI_MMIO_ERROR = 8, + OPAL_EEH_PCI_DMA_ERROR = 9 +}; +enum OpalShpcAction { + OPAL_SHPC_GET_LINK_STATE = 0, + OPAL_SHPC_GET_SLOT_STATE = 1 +}; +enum OpalShpcLinkState { + OPAL_SHPC_LINK_DOWN = 0, + OPAL_SHPC_LINK_UP = 1 +}; +enum OpalMmioWindowType { + OPAL_M32_WINDOW_TYPE = 1, + OPAL_M64_WINDOW_TYPE = 2, + OPAL_IO_WINDOW_TYPE = 3 +}; +enum OpalShpcSlotState { + OPAL_SHPC_DEV_NOT_PRESENT = 0, + OPAL_SHPC_DEV_PRESENT = 1 +}; +enum OpalExceptionHandler { + OPAL_MACHINE_CHECK_HANDLER = 1, + OPAL_HYPERVISOR_MAINTENANCE_HANDLER = 2, + OPAL_SOFTPATCH_HANDLER = 3 +}; +enum OpalPendingState { + OPAL_EVENT_OPAL_INTERNAL = 0x1, + OPAL_EVENT_NVRAM = 0x2, + OPAL_EVENT_RTC = 0x4, + OPAL_EVENT_CONSOLE_OUTPUT = 0x8, + OPAL_EVENT_CONSOLE_INPUT = 0x10 +}; + +/* Machine check related definitions */ +enum OpalMCE_Version { + OpalMCE_V1 = 1, +}; + +enum OpalMCE_Severity { + OpalMCE_SEV_NO_ERROR = 0, + OpalMCE_SEV_WARNING = 1, + OpalMCE_SEV_ERROR_SYNC = 2, + OpalMCE_SEV_FATAL = 3, +}; + +enum OpalMCE_Disposition { + OpalMCE_DISPOSITION_RECOVERED = 0, + OpalMCE_DISPOSITION_NOT_RECOVERED = 1, +}; + +enum OpalMCE_Initiator { + OpalMCE_INITIATOR_UNKNOWN = 0, + OpalMCE_INITIATOR_CPU = 1, +}; + +enum OpalMCE_ErrorType { + OpalMCE_ERROR_TYPE_UNKNOWN = 0, + OpalMCE_ERROR_TYPE_UE = 1, + OpalMCE_ERROR_TYPE_SLB = 2, + OpalMCE_ERROR_TYPE_ERAT = 3, + OpalMCE_ERROR_TYPE_TLB = 4, +}; + +enum OpalMCE_UeErrorType { + OpalMCE_UE_ERROR_INDETERMINATE = 0, + OpalMCE_UE_ERROR_IFETCH = 1, + OpalMCE_UE_ERROR_PAGE_TABLE_WALK_IFETCH = 2, + OpalMCE_UE_ERROR_LOAD_STORE = 3, + OpalMCE_UE_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 4, +}; + +enum OpalMCE_SlbErrorType { + OpalMCE_SLB_ERROR_INDETERMINATE = 0, + OpalMCE_SLB_ERROR_PARITY = 1, + OpalMCE_SLB_ERROR_MULTIHIT = 2, +}; + +enum OpalMCE_EratErrorType { + OpalMCE_ERAT_ERROR_INDETERMINATE = 0, + OpalMCE_ERAT_ERROR_PARITY = 1, + OpalMCE_ERAT_ERROR_MULTIHIT = 2, +}; + +enum OpalMCE_TlbErrorType { + OpalMCE_TLB_ERROR_INDETERMINATE = 0, + OpalMCE_TLB_ERROR_PARITY = 1, + OpalMCE_TLB_ERROR_MULTIHIT = 2, +}; + +enum OpalThreadStatus { + OPAL_THREAD_INACTIVE = 0x0, + OPAL_THREAD_STARTED = 0x1 +}; + +enum OpalPciBusCompare { + OpalPciBusAny = 0, /* Any bus number match */ + OpalPciBus3Bits = 2, /* Match top 3 bits of bus number */ + OpalPciBus4Bits = 3, /* Match top 4 bits of bus number */ + OpalPciBus5Bits = 4, /* Match top 5 bits of bus number */ + OpalPciBus6Bits = 5, /* Match top 6 bits of bus number */ + OpalPciBus7Bits = 6, /* Match top 7 bits of bus number */ + OpalPciBusAll = 7, /* Match bus number exactly */ +}; + +enum OpalDeviceCompare { + OPAL_IGNORE_RID_DEVICE_NUMBER = 0, + OPAL_COMPARE_RID_DEVICE_NUMBER = 1 +}; + +enum OpalFuncCompare { + OPAL_IGNORE_RID_FUNCTION_NUMBER = 0, + OPAL_COMPARE_RID_FUNCTION_NUMBER = 1 +}; + +enum OpalPeAction { + OPAL_UNMAP_PE = 0, + OPAL_MAP_PE = 1 +}; + +enum OpalPciResetAndReinitScope { + OPAL_PHB_COMPLETE = 1, OPAL_PCI_LINK = 2, OPAL_PHB_ERROR = 3, + OPAL_PCI_HOT_RESET = 4, OPAL_PCI_FUNDAMENTAL_RESET = 5, + OPAL_PCI_IODA_RESET = 6, +}; + +enum OpalPciResetState { OPAL_DEASSERT_RESET = 0, OPAL_ASSERT_RESET = 1 }; + +struct opal_machine_check_event { + enum OpalMCE_Version version:8; /* 0x00 */ + uint8_t in_use; /* 0x01 */ + enum OpalMCE_Severity severity:8; /* 0x02 */ + enum OpalMCE_Initiator initiator:8; /* 0x03 */ + enum OpalMCE_ErrorType error_type:8; /* 0x04 */ + enum OpalMCE_Disposition disposition:8; /* 0x05 */ + uint8_t reserved_1[2]; /* 0x06 */ + uint64_t gpr3; /* 0x08 */ + uint64_t srr0; /* 0x10 */ + uint64_t srr1; /* 0x18 */ + union { /* 0x20 */ + struct { + enum OpalMCE_UeErrorType ue_error_type:8; + uint8_t effective_address_provided; + uint8_t physical_address_provided; + uint8_t reserved_1[5]; + uint64_t effective_address; + uint64_t physical_address; + uint8_t reserved_2[8]; + } ue_error; + + struct { + enum OpalMCE_SlbErrorType slb_error_type:8; + uint8_t effective_address_provided; + uint8_t reserved_1[6]; + uint64_t effective_address; + uint8_t reserved_2[16]; + } slb_error; + + struct { + enum OpalMCE_EratErrorType erat_error_type:8; + uint8_t effective_address_provided; + uint8_t reserved_1[6]; + uint64_t effective_address; + uint8_t reserved_2[16]; + } erat_error; + + struct { + enum OpalMCE_TlbErrorType tlb_error_type:8; + uint8_t effective_address_provided; + uint8_t reserved_1[6]; + uint64_t effective_address; + uint8_t reserved_2[16]; + } tlb_error; + } u; +}; + +typedef struct oppanel_line { + /* XXX */ +} oppanel_line_t; + +/* API functions */ +int64_t opal_console_write(int64_t term_number, int64_t *length, + const uint8_t *buffer); +int64_t opal_console_read(int64_t term_number, int64_t *length, + uint8_t *buffer); +int64_t opal_console_write_buffer_space(int64_t term_number, + int64_t *length); +int64_t opal_rtc_read(uint32_t *year_month_day, + uint64_t *hour_minute_second_millisecond); +int64_t opal_rtc_write(uint32_t year_month_day, + uint64_t hour_minute_second_millisecond); +int64_t opal_cec_power_down(uint64_t request); +int64_t opal_cec_reboot(void); +int64_t opal_read_nvram(uint64_t buffer, uint64_t size, uint64_t offset); +int64_t opal_write_nvram(uint64_t buffer, uint64_t size, uint64_t offset); +int64_t opal_handle_interrupt(uint64_t isn, uint64_t *outstanding_event_mask); +int64_t opal_poll_events(uint64_t *outstanding_event_mask); +int64_t opal_pci_set_hub_tce_memory(uint64_t hub_id, uint64_t tce_mem_addr, + uint64_t tce_mem_size); +int64_t opal_pci_set_phb_tce_memory(uint64_t phb_id, uint64_t tce_mem_addr, + uint64_t tce_mem_size); +int64_t opal_pci_config_read_byte(uint64_t phb_id, uint64_t bus_dev_func, + uint64_t offset, uint8_t *data); +int64_t opal_pci_config_read_half_word(uint64_t phb_id, uint64_t bus_dev_func, + uint64_t offset, uint16_t *data); +int64_t opal_pci_config_read_word(uint64_t phb_id, uint64_t bus_dev_func, + uint64_t offset, uint32_t *data); +int64_t opal_pci_config_write_byte(uint64_t phb_id, uint64_t bus_dev_func, + uint64_t offset, uint8_t data); +int64_t opal_pci_config_write_half_word(uint64_t phb_id, uint64_t bus_dev_func, + uint64_t offset, uint16_t data); +int64_t opal_pci_config_write_word(uint64_t phb_id, uint64_t bus_dev_func, + uint64_t offset, uint32_t data); +int64_t opal_set_xive(uint32_t isn, uint16_t server, uint8_t priority); +int64_t opal_get_xive(uint32_t isn, uint16_t *server, uint8_t *priority); +int64_t opal_register_exception_handler(uint64_t opal_exception, + uint64_t handler_address, + uint64_t glue_cache_line); +int64_t opal_pci_eeh_freeze_status(uint64_t phb_id, uint64_t pe_number, + uint8_t *freeze_state, + uint16_t *pci_error_type, + uint64_t *phb_status); +int64_t opal_pci_eeh_freeze_clear(uint64_t phb_id, uint64_t pe_number, + uint64_t eeh_action_token); +int64_t opal_pci_shpc(uint64_t phb_id, uint64_t shpc_action, uint8_t *state); + + + +int64_t opal_pci_phb_mmio_enable(uint64_t phb_id, uint16_t window_type, + uint16_t window_num, uint16_t enable); +int64_t opal_pci_set_phb_mem_window(uint64_t phb_id, uint16_t window_type, + uint16_t window_num, + uint64_t starting_real_address, + uint64_t starting_pci_address, + uint16_t segment_size); +int64_t opal_pci_map_pe_mmio_window(uint64_t phb_id, uint16_t pe_number, + uint16_t window_type, uint16_t window_num, + uint16_t segment_num); +int64_t opal_pci_set_phb_table_memory(uint64_t phb_id, uint64_t rtt_addr, + uint64_t ivt_addr, uint64_t ivt_len, + uint64_t reject_array_addr, + uint64_t peltv_addr); +int64_t opal_pci_set_pe(uint64_t phb_id, uint64_t pe_number, uint64_t bus_dev_func, + uint8_t bus_compare, uint8_t dev_compare, uint8_t func_compare, + uint8_t pe_action); +int64_t opal_pci_set_peltv(uint64_t phb_id, uint32_t parent_pe, uint32_t child_pe, + uint8_t state); +int64_t opal_pci_set_mve(uint64_t phb_id, uint32_t mve_number, uint32_t pe_number); +int64_t opal_pci_set_mve_enable(uint64_t phb_id, uint32_t mve_number, + uint32_t state); +int64_t opal_pci_get_xive_reissue(uint64_t phb_id, uint32_t xive_number, + uint8_t *p_bit, uint8_t *q_bit); +int64_t opal_pci_set_xive_reissue(uint64_t phb_id, uint32_t xive_number, + uint8_t p_bit, uint8_t q_bit); +int64_t opal_pci_set_xive_pe(uint64_t phb_id, uint32_t pe_number, + uint32_t xive_num); +int64_t opal_get_xive_source(uint64_t phb_id, uint32_t xive_num, + int32_t *interrupt_source_number); +int64_t opal_get_msi_32(uint64_t phb_id, uint32_t mve_number, uint32_t xive_num, + uint8_t msi_range, uint32_t *msi_address, + uint32_t *message_data); +int64_t opal_get_msi_64(uint64_t phb_id, uint32_t mve_number, + uint32_t xive_num, uint8_t msi_range, + uint64_t *msi_address, uint32_t *message_data); +int64_t opal_start_cpu(uint64_t thread_number, uint64_t start_address); +int64_t opal_query_cpu_status(uint64_t thread_number, uint8_t *thread_status); +int64_t opal_write_oppanel(oppanel_line_t *lines, uint64_t num_lines); +int64_t opal_pci_map_pe_dma_window(uint64_t phb_id, uint16_t pe_number, uint16_t window_id, + uint16_t tce_levels, uint64_t tce_table_addr, + uint64_t tce_table_size, uint64_t tce_page_size); +int64_t opal_pci_map_pe_dma_window_real(uint64_t phb_id, uint16_t pe_number, + uint16_t dma_window_number, uint64_t pci_start_addr, + uint64_t pci_mem_size); +int64_t opal_pci_reset(uint64_t phb_id, uint8_t reset_scope, uint8_t assert_state); + +/* Internal functions */ +extern int early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data); + +extern int opal_get_chars(uint32_t vtermno, char *buf, int count); +extern int opal_put_chars(uint32_t vtermno, const char *buf, int total_len); + +extern void hvc_opal_init_early(void); + +/* Internal functions */ +extern int early_init_dt_scan_opal(unsigned long node, const char *uname, + int depth, void *data); + +#endif /* __ASSEMBLY__ */ #endif /* __OPAL_H */ -- cgit v1.2.3