From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- include/linux/pstore_ram.h | 89 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 include/linux/pstore_ram.h (limited to 'include/linux/pstore_ram.h') diff --git a/include/linux/pstore_ram.h b/include/linux/pstore_ram.h new file mode 100644 index 000000000..9c9d6c154 --- /dev/null +++ b/include/linux/pstore_ram.h @@ -0,0 +1,89 @@ +/* + * Copyright (C) 2010 Marco Stornelli + * Copyright (C) 2011 Kees Cook + * Copyright (C) 2011 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + * + */ + +#ifndef __LINUX_PSTORE_RAM_H__ +#define __LINUX_PSTORE_RAM_H__ + +#include +#include +#include +#include +#include + +struct persistent_ram_buffer; +struct rs_control; + +struct persistent_ram_ecc_info { + int block_size; + int ecc_size; + int symsize; + int poly; +}; + +struct persistent_ram_zone { + phys_addr_t paddr; + size_t size; + void *vaddr; + struct persistent_ram_buffer *buffer; + size_t buffer_size; + + /* ECC correction */ + char *par_buffer; + char *par_header; + struct rs_control *rs_decoder; + int corrected_bytes; + int bad_blocks; + struct persistent_ram_ecc_info ecc_info; + + char *old_log; + size_t old_log_size; +}; + +struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size, + u32 sig, struct persistent_ram_ecc_info *ecc_info, + unsigned int memtype); +void persistent_ram_free(struct persistent_ram_zone *prz); +void persistent_ram_zap(struct persistent_ram_zone *prz); + +int persistent_ram_write(struct persistent_ram_zone *prz, const void *s, + unsigned int count); + +void persistent_ram_save_old(struct persistent_ram_zone *prz); +size_t persistent_ram_old_size(struct persistent_ram_zone *prz); +void *persistent_ram_old(struct persistent_ram_zone *prz); +void persistent_ram_free_old(struct persistent_ram_zone *prz); +ssize_t persistent_ram_ecc_string(struct persistent_ram_zone *prz, + char *str, size_t len); + +/* + * Ramoops platform data + * @mem_size memory size for ramoops + * @mem_address physical memory address to contain ramoops + */ + +struct ramoops_platform_data { + unsigned long mem_size; + unsigned long mem_address; + unsigned int mem_type; + unsigned long record_size; + unsigned long console_size; + unsigned long ftrace_size; + unsigned long pmsg_size; + int dump_oops; + struct persistent_ram_ecc_info ecc_info; +}; + +#endif -- cgit v1.2.3-54-g00ecf