Contributors: 12
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Borislav Petkov |
228 |
33.58% |
8 |
32.00% |
| Huang Ying |
111 |
16.35% |
2 |
8.00% |
| Chen Gong |
98 |
14.43% |
2 |
8.00% |
| Tony Luck |
85 |
12.52% |
2 |
8.00% |
| Andi Kleen |
75 |
11.05% |
3 |
12.00% |
| Yazen Ghannam |
44 |
6.48% |
2 |
8.00% |
| Naveen N. Rao |
20 |
2.95% |
1 |
4.00% |
| Chen Yucong |
9 |
1.33% |
1 |
4.00% |
| Aravind Gopalakrishnan |
4 |
0.59% |
1 |
4.00% |
| Kay Sievers |
3 |
0.44% |
1 |
4.00% |
| Vishal Verma |
1 |
0.15% |
1 |
4.00% |
| Greg Kroah-Hartman |
1 |
0.15% |
1 |
4.00% |
| Total |
679 |
|
25 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __X86_MCE_INTERNAL_H__
#define __X86_MCE_INTERNAL_H__
#undef pr_fmt
#define pr_fmt(fmt) "mce: " fmt
#include <linux/device.h>
#include <asm/mce.h>
enum severity_level {
MCE_NO_SEVERITY,
MCE_DEFERRED_SEVERITY,
MCE_UCNA_SEVERITY = MCE_DEFERRED_SEVERITY,
MCE_KEEP_SEVERITY,
MCE_SOME_SEVERITY,
MCE_AO_SEVERITY,
MCE_UC_SEVERITY,
MCE_AR_SEVERITY,
MCE_PANIC_SEVERITY,
};
extern struct blocking_notifier_head x86_mce_decoder_chain;
#define ATTR_LEN 16
#define INITIAL_CHECK_INTERVAL 5 * 60 /* 5 minutes */
/* One object for each MCE bank, shared by all CPUs */
struct mce_bank {
u64 ctl; /* subevents to enable */
unsigned char init; /* initialise bank? */
struct device_attribute attr; /* device attribute */
char attrname[ATTR_LEN]; /* attribute name */
};
struct mce_evt_llist {
struct llist_node llnode;
struct mce mce;
};
void mce_gen_pool_process(struct work_struct *__unused);
bool mce_gen_pool_empty(void);
int mce_gen_pool_add(struct mce *mce);
int mce_gen_pool_init(void);
struct llist_node *mce_gen_pool_prepare_records(void);
extern int (*mce_severity)(struct mce *a, int tolerant, char **msg, bool is_excp);
struct dentry *mce_get_debugfs_dir(void);
extern struct mce_bank *mce_banks;
extern mce_banks_t mce_banks_ce_disabled;
#ifdef CONFIG_X86_MCE_INTEL
unsigned long cmci_intel_adjust_timer(unsigned long interval);
bool mce_intel_cmci_poll(void);
void mce_intel_hcpu_update(unsigned long cpu);
void cmci_disable_bank(int bank);
#else
# define cmci_intel_adjust_timer mce_adjust_timer_default
static inline bool mce_intel_cmci_poll(void) { return false; }
static inline void mce_intel_hcpu_update(unsigned long cpu) { }
static inline void cmci_disable_bank(int bank) { }
#endif
void mce_timer_kick(unsigned long interval);
#ifdef CONFIG_ACPI_APEI
int apei_write_mce(struct mce *m);
ssize_t apei_read_mce(struct mce *m, u64 *record_id);
int apei_check_mce(void);
int apei_clear_mce(u64 record_id);
#else
static inline int apei_write_mce(struct mce *m)
{
return -EINVAL;
}
static inline ssize_t apei_read_mce(struct mce *m, u64 *record_id)
{
return 0;
}
static inline int apei_check_mce(void)
{
return 0;
}
static inline int apei_clear_mce(u64 record_id)
{
return -EINVAL;
}
#endif
void mce_inject_log(struct mce *m);
/*
* We consider records to be equivalent if bank+status+addr+misc all match.
* This is only used when the system is going down because of a fatal error
* to avoid cluttering the console log with essentially repeated information.
* In normal processing all errors seen are logged.
*/
static inline bool mce_cmp(struct mce *m1, struct mce *m2)
{
return m1->bank != m2->bank ||
m1->status != m2->status ||
m1->addr != m2->addr ||
m1->misc != m2->misc;
}
extern struct device_attribute dev_attr_trigger;
#ifdef CONFIG_X86_MCELOG_LEGACY
void mce_work_trigger(void);
void mce_register_injector_chain(struct notifier_block *nb);
void mce_unregister_injector_chain(struct notifier_block *nb);
#else
static inline void mce_work_trigger(void) { }
static inline void mce_register_injector_chain(struct notifier_block *nb) { }
static inline void mce_unregister_injector_chain(struct notifier_block *nb) { }
#endif
struct mca_config {
bool dont_log_ce;
bool cmci_disabled;
bool ignore_ce;
__u64 lmce_disabled : 1,
disabled : 1,
ser : 1,
recovery : 1,
bios_cmci_threshold : 1,
__reserved : 59;
u8 banks;
s8 bootlog;
int tolerant;
int monarch_timeout;
int panic_timeout;
u32 rip_msr;
};
extern struct mca_config mca_cfg;
struct mce_vendor_flags {
/*
* Indicates that overflow conditions are not fatal, when set.
*/
__u64 overflow_recov : 1,
/*
* (AMD) SUCCOR stands for S/W UnCorrectable error COntainment and
* Recovery. It indicates support for data poisoning in HW and deferred
* error interrupts.
*/
succor : 1,
/*
* (AMD) SMCA: This bit indicates support for Scalable MCA which expands
* the register space for each MCA bank and also increases number of
* banks. Also, to accommodate the new banks and registers, the MCA
* register space is moved to a new MSR range.
*/
smca : 1,
__reserved_0 : 61;
};
extern struct mce_vendor_flags mce_flags;
struct mca_msr_regs {
u32 (*ctl) (int bank);
u32 (*status) (int bank);
u32 (*addr) (int bank);
u32 (*misc) (int bank);
};
extern struct mca_msr_regs msr_ops;
/* Decide whether to add MCE record to MCE event pool or filter it out. */
extern bool filter_mce(struct mce *m);
#ifdef CONFIG_X86_MCE_AMD
extern bool amd_filter_mce(struct mce *m);
#else
static inline bool amd_filter_mce(struct mce *m) { return false; };
#endif
#endif /* __X86_MCE_INTERNAL_H__ */