diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/include/asm/fadump.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/powerpc/include/asm/fadump.h | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/include/asm/fadump.h b/ANDROID_3.4.5/arch/powerpc/include/asm/fadump.h deleted file mode 100644 index 88dbf965..00000000 --- a/ANDROID_3.4.5/arch/powerpc/include/asm/fadump.h +++ /dev/null @@ -1,218 +0,0 @@ -/* - * Firmware Assisted dump header file. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * Copyright 2011 IBM Corporation - * Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> - */ - -#ifndef __PPC64_FA_DUMP_H__ -#define __PPC64_FA_DUMP_H__ - -#ifdef CONFIG_FA_DUMP - -/* - * The RMA region will be saved for later dumping when kernel crashes. - * RMA is Real Mode Area, the first block of logical memory address owned - * by logical partition, containing the storage that may be accessed with - * translate off. - */ -#define RMA_START 0x0 -#define RMA_END (ppc64_rma_size) - -/* - * On some Power systems where RMO is 128MB, it still requires minimum of - * 256MB for kernel to boot successfully. When kdump infrastructure is - * configured to save vmcore over network, we run into OOM issue while - * loading modules related to network setup. Hence we need aditional 64M - * of memory to avoid OOM issue. - */ -#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 -#define FADUMP_REAL_MODE_REGION 0x0011 - -/* Dump request flag */ -#define FADUMP_REQUEST_FLAG 0x00000001 - -/* FAD commands */ -#define FADUMP_REGISTER 1 -#define FADUMP_UNREGISTER 2 -#define FADUMP_INVALIDATE 3 - -/* Dump status flag */ -#define FADUMP_ERROR_FLAG 0x2000 - -#define FADUMP_CPU_ID_MASK ((1UL << 32) - 1) - -#define CPU_UNKNOWN (~((u32)0)) - -/* Utility macros */ -#define SKIP_TO_NEXT_CPU(reg_entry) \ -({ \ - while (reg_entry->reg_id != REG_ID("CPUEND")) \ - reg_entry++; \ - reg_entry++; \ -}) - -/* Kernel Dump section info */ -struct fadump_section { - u32 request_flag; - u16 source_data_type; - u16 error_flags; - u64 source_address; - u64 source_len; - u64 bytes_dumped; - u64 destination_address; -}; - -/* ibm,configure-kernel-dump header. */ -struct fadump_section_header { - u32 dump_format_version; - u16 dump_num_sections; - u16 dump_status_flag; - u32 offset_first_dump_section; - - /* Fields for disk dump option. */ - u32 dd_block_size; - u64 dd_block_offset; - u64 dd_num_blocks; - u32 dd_offset_disk_path; - - /* Maximum time allowed to prevent an automatic dump-reboot. */ - u32 max_time_auto; -}; - -/* - * Firmware Assisted dump memory structure. This structure is required for - * registering future kernel dump with power firmware through rtas call. - * - * No disk dump option. Hence disk dump path string section is not included. - */ -struct fadump_mem_struct { - struct fadump_section_header header; - - /* Kernel dump sections */ - struct fadump_section cpu_state_data; - struct fadump_section hpte_region; - struct fadump_section rmr_region; -}; - -/* Firmware-assisted dump configuration details. */ -struct fw_dump { - unsigned long cpu_state_data_size; - unsigned long hpte_region_size; - unsigned long boot_memory_size; - unsigned long reserve_dump_area_start; - unsigned long reserve_dump_area_size; - /* cmd line option during boot */ - unsigned long reserve_bootvar; - - unsigned long fadumphdr_addr; - unsigned long cpu_notes_buf; - unsigned long cpu_notes_buf_size; - - int ibm_configure_kernel_dump; - - unsigned long fadump_enabled:1; - unsigned long fadump_supported:1; - unsigned long dump_active:1; - 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 REG_ID(x) str_to_u64(x) - -#define FADUMP_CRASH_INFO_MAGIC STR_TO_HEX("FADMPINF") -#define REGSAVE_AREA_MAGIC STR_TO_HEX("REGSAVE") - -/* The firmware-assisted dump format. - * - * The register save area is an area in the partition's memory used to preserve - * the register contents (CPU state data) for the active CPUs during a firmware - * assisted dump. The dump format contains register save area header followed - * by register entries. Each list of registers for a CPU starts with - * "CPUSTRT" and ends with "CPUEND". - */ - -/* Register save area header. */ -struct fadump_reg_save_area_header { - u64 magic_number; - u32 version; - u32 num_cpu_offset; -}; - -/* Register entry. */ -struct fadump_reg_entry { - u64 reg_id; - u64 reg_value; -}; - -/* fadump crash info structure */ -struct fadump_crash_info_header { - u64 magic_number; - u64 elfcorehdr_addr; - u32 crashing_cpu; - struct pt_regs regs; - struct cpumask cpu_online_mask; -}; - -/* 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); -extern int setup_fadump(void); -extern int is_fadump_active(void); -extern void crash_fadump(struct pt_regs *, const char *); -extern void fadump_cleanup(void); - -extern void vmcore_cleanup(void); -#else /* CONFIG_FA_DUMP */ -static inline int is_fadump_active(void) { return 0; } -static inline void crash_fadump(struct pt_regs *regs, const char *str) { } -#endif -#endif |