1e46167840
Add support to update client's entry physical/virtual addresses, which is useful for DLKM, dynamic address changing clients. Currently, msm_minidump_add_region() returns 0 on success, instead of that, return 'region number' of the entry in the minidump table. So clients who wants to update their address in future, needs to book keep their entry in minidump table. Change-Id: I03abbbd87bf6d2e11cf637525412d352772821cf Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/* Copyright (c) 2017-18 The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __MINIDUMP_H
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#define __MINIDUMP_H
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#define MAX_NAME_LENGTH 12
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/* md_region - Minidump table entry
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* @name: Entry name, Minidump will dump binary with this name.
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* @id: Entry ID, used only for SDI dumps.
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* @virt_addr: Address of the entry.
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* @phys_addr: Physical address of the entry to dump.
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* @size: Number of byte to dump from @address location
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* it should be 4 byte aligned.
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*/
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struct md_region {
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char name[MAX_NAME_LENGTH];
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u32 id;
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u64 virt_addr;
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u64 phys_addr;
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u64 size;
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};
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#ifdef CONFIG_QCOM_MINIDUMP
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/*
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* Register an entry in Minidump table
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* Returns:
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* region number: entry position in minidump table.
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* Negetive error number on failures.
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*/
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extern int msm_minidump_add_region(const struct md_region *entry);
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/*
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* Update registered region address in Minidump table.
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* It does not hold any locks, so strictly serialize the region updates.
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* Returns:
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* Zero: on successfully update
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* Negetive error number on failures.
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*/
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extern int msm_minidump_update_region(int regno, const struct md_region *entry);
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extern bool msm_minidump_enabled(void);
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extern void dump_stack_minidump(u64 sp);
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#else
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static inline int msm_minidump_add_region(const struct md_region *entry)
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{
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/* Return quietly, if minidump is not supported */
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return 0;
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}
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static inline bool msm_minidump_enabled(void) { return false; }
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static inline void dump_stack_minidump(u64 sp) {}
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#endif
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#endif
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