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| author | Chen, Gong <gong.chen@linux.intel.com> | 2013-12-06 01:17:08 -0500 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2013-12-11 18:06:47 +0100 |
| commit | c700f013adb0ec57518a7fe0163e3117659ce249 (patch) | |
| tree | 6912ad9bc257178853c1f1c7e7c643391227dde7 | |
| parent | 545104dd2ba0feb62544284ee1d6c98fe6ef8245 (diff) | |
| download | linux-c700f013adb0ec57518a7fe0163e3117659ce249.tar.bz2 | |
EDAC: Add an edac_report parameter to EDAC
This new parameter is used to control how to report HW error reporting,
especially for newer Intel platform, like Ivybridge-EX, which contains
an enhanced error decoding functionality in the firmware, i.e. eMCA.
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/1386310630-12529-2-git-send-email-gong.chen@linux.intel.com
[ Boris: massage commit message. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
| -rw-r--r-- | Documentation/kernel-parameters.txt | 8 | ||||
| -rw-r--r-- | drivers/edac/edac_stub.c | 19 | ||||
| -rw-r--r-- | include/linux/edac.h | 28 |
3 files changed, 55 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 50680a59a2ff..453092c822f1 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -881,6 +881,14 @@ bytes respectively. Such letter suffixes can also be entirely omitted. The xen output can only be used by Xen PV guests. + edac_report= [HW,EDAC] Control how to report EDAC event + Format: {"on" | "off" | "force"} + on: enable EDAC to report H/W event. May be overridden + by other higher priority error reporting module. + off: disable H/W event reporting through EDAC. + force: enforce the use of EDAC to report H/W event. + default: on. + ekgdboc= [X86,KGDB] Allow early kernel console debugging ekgdboc=kbd diff --git a/drivers/edac/edac_stub.c b/drivers/edac/edac_stub.c index 351945fa2ecd..9d9e18aefaaa 100644 --- a/drivers/edac/edac_stub.c +++ b/drivers/edac/edac_stub.c @@ -29,6 +29,25 @@ EXPORT_SYMBOL_GPL(edac_err_assert); static atomic_t edac_subsys_valid = ATOMIC_INIT(0); +int edac_report_status = EDAC_REPORTING_ENABLED; +EXPORT_SYMBOL_GPL(edac_report_status); + +static int __init edac_report_setup(char *str) +{ + if (!str) + return -EINVAL; + + if (!strncmp(str, "on", 2)) + set_edac_report_status(EDAC_REPORTING_ENABLED); + else if (!strncmp(str, "off", 3)) + set_edac_report_status(EDAC_REPORTING_DISABLED); + else if (!strncmp(str, "force", 5)) + set_edac_report_status(EDAC_REPORTING_FORCE); + + return 0; +} +__setup("edac_report=", edac_report_setup); + /* * called to determine if there is an EDAC driver interested in * knowing an event (such as NMI) occurred diff --git a/include/linux/edac.h b/include/linux/edac.h index dbdffe8d4469..8e6c20af11a2 100644 --- a/include/linux/edac.h +++ b/include/linux/edac.h @@ -35,6 +35,34 @@ extern void edac_atomic_assert_error(void); extern struct bus_type *edac_get_sysfs_subsys(void); extern void edac_put_sysfs_subsys(void); +enum { + EDAC_REPORTING_ENABLED, + EDAC_REPORTING_DISABLED, + EDAC_REPORTING_FORCE +}; + +extern int edac_report_status; +#ifdef CONFIG_EDAC +static inline int get_edac_report_status(void) +{ + return edac_report_status; +} + +static inline void set_edac_report_status(int new) +{ + edac_report_status = new; +} +#else +static inline int get_edac_report_status(void) +{ + return EDAC_REPORTING_DISABLED; +} + +static inline void set_edac_report_status(int new) +{ +} +#endif + static inline void opstate_init(void) { switch (edac_op_state) { |