diff options
| -rw-r--r-- | drivers/edac/skx_edac.c | 94 |
1 files changed, 48 insertions, 46 deletions
diff --git a/drivers/edac/skx_edac.c b/drivers/edac/skx_edac.c index 6d38701c1b2e..93ef161bb5e1 100644 --- a/drivers/edac/skx_edac.c +++ b/drivers/edac/skx_edac.c @@ -921,52 +921,6 @@ static bool skx_decode(struct decoded_addr *res) skx_rir_decode(res) && skx_mad_decode(res); } -#ifdef CONFIG_EDAC_DEBUG -/* - * Debug feature. - * Exercise the address decode logic by writing an address to - * /sys/kernel/debug/edac/skx_test/addr. - */ -static struct dentry *skx_test; - -static int debugfs_u64_set(void *data, u64 val) -{ - struct decoded_addr res; - - res.addr = val; - skx_decode(&res); - - return 0; -} -DEFINE_SIMPLE_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n"); - -static void setup_skx_debug(void) -{ - skx_test = edac_debugfs_create_dir("skx_test"); - if (!skx_test) - return; - - if (!edac_debugfs_create_file("addr", 0200, skx_test, - NULL, &fops_u64_wo)) { - debugfs_remove(skx_test); - skx_test = NULL; - } -} - -static void teardown_skx_debug(void) -{ - debugfs_remove_recursive(skx_test); -} -#else -static void setup_skx_debug(void) -{ -} - -static void teardown_skx_debug(void) -{ -} -#endif /*CONFIG_EDAC_DEBUG*/ - static bool skx_adxl_decode(struct decoded_addr *res) { @@ -1171,6 +1125,54 @@ static struct notifier_block skx_mce_dec = { .priority = MCE_PRIO_EDAC, }; +#ifdef CONFIG_EDAC_DEBUG +/* + * Debug feature. + * Exercise the address decode logic by writing an address to + * /sys/kernel/debug/edac/skx_test/addr. + */ +static struct dentry *skx_test; + +static int debugfs_u64_set(void *data, u64 val) +{ + struct mce m; + + pr_warn_once("Fake error to 0x%llx injected via debugfs\n", val); + + memset(&m, 0, sizeof(m)); + /* ADDRV + MemRd + Unknown channel */ + m.status = MCI_STATUS_ADDRV + 0x90; + /* One corrected error */ + m.status |= BIT_ULL(MCI_STATUS_CEC_SHIFT); + m.addr = val; + skx_mce_check_error(NULL, 0, &m); + + return 0; +} +DEFINE_SIMPLE_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n"); + +static void setup_skx_debug(void) +{ + skx_test = edac_debugfs_create_dir("skx_test"); + if (!skx_test) + return; + + if (!edac_debugfs_create_file("addr", 0200, skx_test, + NULL, &fops_u64_wo)) { + debugfs_remove(skx_test); + skx_test = NULL; + } +} + +static void teardown_skx_debug(void) +{ + debugfs_remove_recursive(skx_test); +} +#else +static void setup_skx_debug(void) {} +static void teardown_skx_debug(void) {} +#endif /*CONFIG_EDAC_DEBUG*/ + static void skx_remove(void) { int i, j; |