diff options
Diffstat (limited to 'arch/powerpc/include/asm/rtas-types.h')
| -rw-r--r-- | arch/powerpc/include/asm/rtas-types.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/rtas-types.h b/arch/powerpc/include/asm/rtas-types.h new file mode 100644 index 000000000000..aa420561bc10 --- /dev/null +++ b/arch/powerpc/include/asm/rtas-types.h @@ -0,0 +1,124 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef _ASM_POWERPC_RTAS_TYPES_H +#define _ASM_POWERPC_RTAS_TYPES_H + +#include <linux/spinlock_types.h> + +typedef __be32 rtas_arg_t; + +struct rtas_args { + __be32 token; + __be32 nargs; + __be32 nret; + rtas_arg_t args[16]; + rtas_arg_t *rets; /* Pointer to return values in args[]. */ +}; + +struct rtas_t { + unsigned long entry; /* physical address pointer */ + unsigned long base; /* physical address pointer */ + unsigned long size; + arch_spinlock_t lock; + struct rtas_args args; + struct device_node *dev; /* virtual address pointer */ +}; + +struct rtas_suspend_me_data { + atomic_t working; /* number of cpus accessing this struct */ + atomic_t done; + int token; /* ibm,suspend-me */ + atomic_t error; + struct completion *complete; /* wait on this until working == 0 */ +}; + +struct rtas_error_log { + /* Byte 0 */ + u8 byte0; /* Architectural version */ + + /* Byte 1 */ + u8 byte1; + /* XXXXXXXX + * XXX 3: Severity level of error + * XX 2: Degree of recovery + * X 1: Extended log present? + * XX 2: Reserved + */ + + /* Byte 2 */ + u8 byte2; + /* XXXXXXXX + * XXXX 4: Initiator of event + * XXXX 4: Target of failed operation + */ + u8 byte3; /* General event or error*/ + __be32 extended_log_length; /* length in bytes */ + unsigned char buffer[1]; /* Start of extended log */ + /* Variable length. */ +}; + +/* RTAS general extended event log, Version 6. The extended log starts + * from "buffer" field of struct rtas_error_log defined above. + */ +struct rtas_ext_event_log_v6 { + /* Byte 0 */ + u8 byte0; + /* XXXXXXXX + * X 1: Log valid + * X 1: Unrecoverable error + * X 1: Recoverable (correctable or successfully retried) + * X 1: Bypassed unrecoverable error (degraded operation) + * X 1: Predictive error + * X 1: "New" log (always 1 for data returned from RTAS) + * X 1: Big Endian + * X 1: Reserved + */ + + /* Byte 1 */ + u8 byte1; /* reserved */ + + /* Byte 2 */ + u8 byte2; + /* XXXXXXXX + * X 1: Set to 1 (indicating log is in PowerPC format) + * XXX 3: Reserved + * XXXX 4: Log format used for bytes 12-2047 + */ + + /* Byte 3 */ + u8 byte3; /* reserved */ + /* Byte 4-11 */ + u8 reserved[8]; /* reserved */ + /* Byte 12-15 */ + __be32 company_id; /* Company ID of the company */ + /* that defines the format for */ + /* the vendor specific log type */ + /* Byte 16-end of log */ + u8 vendor_log[1]; /* Start of vendor specific log */ + /* Variable length. */ +}; + +/* Vendor specific Platform Event Log Format, Version 6, section header */ +struct pseries_errorlog { + __be16 id; /* 0x00 2-byte ASCII section ID */ + __be16 length; /* 0x02 Section length in bytes */ + u8 version; /* 0x04 Section version */ + u8 subtype; /* 0x05 Section subtype */ + __be16 creator_component; /* 0x06 Creator component ID */ + u8 data[]; /* 0x08 Start of section data */ +}; + +/* RTAS pseries hotplug errorlog section */ +struct pseries_hp_errorlog { + u8 resource; + u8 action; + u8 id_type; + u8 reserved; + union { + __be32 drc_index; + __be32 drc_count; + struct { __be32 count, index; } ic; + char drc_name[1]; + } _drc_u; +}; + +#endif /* _ASM_POWERPC_RTAS_TYPES_H */ |