diff options
Diffstat (limited to 'arch/powerpc/include/asm/fadump.h')
| -rw-r--r-- | arch/powerpc/include/asm/fadump.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/fadump.h b/arch/powerpc/include/asm/fadump.h index bbaf278bdcc..9e172a5d53c 100644 --- a/arch/powerpc/include/asm/fadump.h +++ b/arch/powerpc/include/asm/fadump.h @@ -43,6 +43,12 @@ #define MIN_BOOT_MEM (((RMA_END < (0x1UL << 28)) ? (0x1UL << 28) : RMA_END) \ + (0x1UL << 26)) +#define memblock_num_regions(memblock_type) (memblock.memblock_type.cnt) + +#ifndef ELF_CORE_EFLAGS +#define ELF_CORE_EFLAGS 0 +#endif + /* Firmware provided dump sections */ #define FADUMP_CPU_STATE_DATA 0x0001 #define FADUMP_HPTE_REGION 0x0002 @@ -56,6 +62,9 @@ #define FADUMP_UNREGISTER 2 #define FADUMP_INVALIDATE 3 +/* Dump status flag */ +#define FADUMP_ERROR_FLAG 0x2000 + /* Kernel Dump section info */ struct fadump_section { u32 request_flag; @@ -109,6 +118,7 @@ struct fw_dump { /* cmd line option during boot */ unsigned long reserve_bootvar; + unsigned long fadumphdr_addr; int ibm_configure_kernel_dump; unsigned long fadump_enabled:1; @@ -117,6 +127,39 @@ struct fw_dump { unsigned long dump_registered:1; }; +/* + * Copy the ascii values for first 8 characters from a string into u64 + * variable at their respective indexes. + * e.g. + * The string "FADMPINF" will be converted into 0x4641444d50494e46 + */ +static inline u64 str_to_u64(const char *str) +{ + u64 val = 0; + int i; + + for (i = 0; i < sizeof(val); i++) + val = (*str) ? (val << 8) | *str++ : val << 8; + return val; +} +#define STR_TO_HEX(x) str_to_u64(x) + +#define FADUMP_CRASH_INFO_MAGIC STR_TO_HEX("FADMPINF") + +/* fadump crash info structure */ +struct fadump_crash_info_header { + u64 magic_number; + u64 elfcorehdr_addr; +}; + +/* Crash memory ranges */ +#define INIT_CRASHMEM_RANGES (INIT_MEMBLOCK_REGIONS + 2) + +struct fad_crash_memory_ranges { + unsigned long long base; + unsigned long long size; +}; + extern int early_init_dt_scan_fw_dump(unsigned long node, const char *uname, int depth, void *data); extern int fadump_reserve_mem(void); |