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813e74c57b
PD#SWPL-6028 Problem: enable ftrce in ramoops for new tm2 dtbs Solution: enable ftrce in ramoops for new tm2 dtbs Verify: verified ok Change-Id: Ia7ee3b11784a69ef7d6b7671f9ad75c14ae477f7 Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com> Signed-off-by: Luan Yuan <luan.yuan@amlogic.com> debug: improve ftrace_ramoops for io trace [2/2] PD#SWPL-6028 Problem: improve ftrace_ramoops to debug bus hang Solution: 1. in uboot setenv initargs $initargs ramoops_io_en=1 loglevel=3;save;reset 2. in linux command line: cat /sys/module/kernel/parameters/ramoops_io_en to check if success. 3. after watchdog reboot, get trace data with: cat /sys/fs/pstore/ftrace-ramoops-0 Verify: TL1 x301 Change-Id: If1a2582b40a3ded31eedef5355eb0b8a5bf495c3 Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com> debug: save irqflag locally when ftrace_ramoops io [1/1] PD#SWPL-6028 Problem: save irqflag locally when ftrace_ramoops io Solution: save irqflag locally when ftrace_ramoops io Verify: TL1 x301 Change-Id: I6df9700cceaccc97dc983d88ada73197a6968f73 Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com> debug: do not print old_size when ftrace_size is 0 [1/1] PD#SWPL-6028 Problem: do not print old_size when ftrace_size is 0 Solution: do not print old_size when ftrace_size is 0 Verify: TL1 x301 Change-Id: I00a71c83fede14a2606c5e7eea5d8c4fdaeb5553 Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com> dts: change ftrace-size. [1/1] PD#SWPL-6028 Problem: add ftrace-size. Solution: add ftrace-size. Verify: no. Change-Id: I42d34edf665632dfe29d04df192964238b8e3df8 Signed-off-by: Jianxiong Pan <jianxiong.pan@amlogic.com> Signed-off-by: Luan Yuan <luan.yuan@amlogic.com>
83 lines
1.9 KiB
C
83 lines
1.9 KiB
C
#ifndef __PSTORE_INTERNAL_H__
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#define __PSTORE_INTERNAL_H__
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#include <linux/types.h>
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#include <linux/time.h>
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#include <linux/pstore.h>
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#if NR_CPUS <= 2 && defined(CONFIG_ARM_THUMB)
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#define PSTORE_CPU_IN_IP 0x1
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#elif NR_CPUS <= 4 && defined(CONFIG_ARM)
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#define PSTORE_CPU_IN_IP 0x3
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#endif
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struct pstore_ftrace_record {
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unsigned long ip;
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unsigned long parent_ip;
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#ifndef PSTORE_CPU_IN_IP
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unsigned int cpu;
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#endif
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#ifdef CONFIG_AMLOGIC_DEBUG_FTRACE_PSTORE
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int pid;
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unsigned long val1;
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unsigned long val2;
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unsigned long long time;
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unsigned char comm[8];
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unsigned int flag;
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#endif
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};
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#ifdef CONFIG_AMLOGIC_DEBUG_FTRACE_PSTORE
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void notrace pstore_ftrace_save(struct pstore_ftrace_record *rec);
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void notrace pstore_ftrace_dump(struct pstore_ftrace_record *rec,
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struct seq_file *s);
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#endif
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static inline void
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pstore_ftrace_encode_cpu(struct pstore_ftrace_record *rec, unsigned int cpu)
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{
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#ifndef PSTORE_CPU_IN_IP
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rec->cpu = cpu;
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#else
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rec->ip |= cpu;
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#endif
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}
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static inline unsigned int
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pstore_ftrace_decode_cpu(struct pstore_ftrace_record *rec)
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{
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#ifndef PSTORE_CPU_IN_IP
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return rec->cpu;
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#else
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return rec->ip & PSTORE_CPU_IN_IP;
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#endif
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}
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#ifdef CONFIG_PSTORE_FTRACE
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extern void pstore_register_ftrace(void);
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extern void pstore_unregister_ftrace(void);
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#else
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static inline void pstore_register_ftrace(void) {}
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static inline void pstore_unregister_ftrace(void) {}
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#endif
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#ifdef CONFIG_PSTORE_PMSG
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extern void pstore_register_pmsg(void);
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extern void pstore_unregister_pmsg(void);
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#else
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static inline void pstore_register_pmsg(void) {}
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static inline void pstore_unregister_pmsg(void) {}
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#endif
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extern struct pstore_info *psinfo;
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extern void pstore_set_kmsg_bytes(int);
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extern void pstore_get_records(int);
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extern int pstore_mkfile(enum pstore_type_id, char *psname, u64 id,
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int count, char *data, bool compressed,
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size_t size, struct timespec time,
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struct pstore_info *psi);
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extern bool pstore_is_mounted(void);
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#endif
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