diff options
| author |   Borislav Petkov <bp@suse.de> | 2017-03-27 11:33:02 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2017-03-28 08:54:48 +0200 |
| commit | 011d8261117249eab97bc86a8e1ac7731e03e319 (patch) | |
| tree | 5e4a07f4ac44d81b62344ee3c8dadadf1f77cf66 /include/linux/ras.h | |
| parent | x86/mce: Rename mce_log to mce_log_buffer (diff) | |
| download | linux-dev-011d8261117249eab97bc86a8e1ac7731e03e319.tar.xz linux-dev-011d8261117249eab97bc86a8e1ac7731e03e319.zip | |
RAS: Add a Corrected Errors Collector
Introduce a simple data structure for collecting correctable errors
along with accessors. More detailed description in the code itself.
The error decoding is done with the decoding chain now and
mce_first_notifier() gets to see the error first and the CEC decides
whether to log it and then the rest of the chain doesn't hear about it -
basically the main reason for the CE collector - or to continue running
the notifiers.
When the CEC hits the action threshold, it will try to soft-offine the
page containing the ECC and then the whole decoding chain gets to see
the error.
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20170327093304.10683-5-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/ras.h')
| -rw-r--r-- | include/linux/ras.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/linux/ras.h b/include/linux/ras.h index 2aceeafd6fe5..ffb147185e8d 100644 --- a/include/linux/ras.h +++ b/include/linux/ras.h @@ -1,14 +1,25 @@ #ifndef __RAS_H__ #define __RAS_H__ +#include <asm/errno.h> + #ifdef CONFIG_DEBUG_FS int ras_userspace_consumers(void); void ras_debugfs_init(void); int ras_add_daemon_trace(void); #else static inline int ras_userspace_consumers(void) { return 0; } -static inline void ras_debugfs_init(void) { return; } +static inline void ras_debugfs_init(void) { } static inline int ras_add_daemon_trace(void) { return 0; } #endif +#ifdef CONFIG_RAS_CEC +void __init cec_init(void); +int __init parse_cec_param(char *str); +int cec_add_elem(u64 pfn); +#else +static inline void __init cec_init(void) { } +static inline int cec_add_elem(u64 pfn) { return -ENODEV; } #endif + +#endif /* __RAS_H__ */ |