diff options
| -rw-r--r-- | drivers/edac/i10nm_base.c | 52 | ||||
| -rw-r--r-- | drivers/edac/skx_base.c | 50 | ||||
| -rw-r--r-- | drivers/edac/skx_common.c | 57 | ||||
| -rw-r--r-- | drivers/edac/skx_common.h | 8 |
4 files changed, 109 insertions, 58 deletions
diff --git a/drivers/edac/i10nm_base.c b/drivers/edac/i10nm_base.c index c334fb7c63df..6f06aec4877c 100644 --- a/drivers/edac/i10nm_base.c +++ b/drivers/edac/i10nm_base.c @@ -181,6 +181,54 @@ static struct notifier_block i10nm_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/i10nm_test/addr. + */ +static struct dentry *i10nm_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_i10nm_debug(void) +{ + i10nm_test = edac_debugfs_create_dir("i10nm_test"); + if (!i10nm_test) + return; + + if (!edac_debugfs_create_file("addr", 0200, i10nm_test, + NULL, &fops_u64_wo)) { + debugfs_remove(i10nm_test); + i10nm_test = NULL; + } +} + +static void teardown_i10nm_debug(void) +{ + debugfs_remove_recursive(i10nm_test); +} +#else +static inline void setup_i10nm_debug(void) {} +static inline void teardown_i10nm_debug(void) {} +#endif /*CONFIG_EDAC_DEBUG*/ + static int __init i10nm_init(void) { u8 mc = 0, src_id = 0, node_id = 0; @@ -249,7 +297,7 @@ static int __init i10nm_init(void) opstate_init(); mce_register_decode_chain(&i10nm_mce_dec); - setup_skx_debug("i10nm_test"); + setup_i10nm_debug(); i10nm_printk(KERN_INFO, "%s\n", I10NM_REVISION); @@ -262,7 +310,7 @@ fail: static void __exit i10nm_exit(void) { edac_dbg(2, "\n"); - teardown_skx_debug(); + teardown_i10nm_debug(); mce_unregister_decode_chain(&i10nm_mce_dec); skx_adxl_put(); skx_remove(); diff --git a/drivers/edac/skx_base.c b/drivers/edac/skx_base.c index adae4c848ca1..a5c8fa3a249a 100644 --- a/drivers/edac/skx_base.c +++ b/drivers/edac/skx_base.c @@ -540,6 +540,54 @@ 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 inline void setup_skx_debug(void) {} +static inline void teardown_skx_debug(void) {} +#endif /*CONFIG_EDAC_DEBUG*/ + /* * skx_init: * make sure we are running on the correct cpu model @@ -619,7 +667,7 @@ static int __init skx_init(void) /* Ensure that the OPSTATE is set correctly for POLL or NMI */ opstate_init(); - setup_skx_debug("skx_test"); + setup_skx_debug(); mce_register_decode_chain(&skx_mce_dec); diff --git a/drivers/edac/skx_common.c b/drivers/edac/skx_common.c index 0e96e7b5b0a7..b0dddcfa9baa 100644 --- a/drivers/edac/skx_common.c +++ b/drivers/edac/skx_common.c @@ -1,7 +1,15 @@ // SPDX-License-Identifier: GPL-2.0 /* - * Common codes for both the skx_edac driver and Intel 10nm server EDAC driver. - * Originally split out from the skx_edac driver. + * + * Shared code by both skx_edac and i10nm_edac. Originally split out + * from the skx_edac driver. + * + * This file is linked into both skx_edac and i10nm_edac drivers. In + * order to avoid link errors, this file must be like a pure library + * without including symbols and defines which would otherwise conflict, + * when linked once into a module and into a built-in object, at the + * same time. For example, __this_module symbol references when that + * file is being linked into a built-in object. * * Copyright (c) 2018, Intel Corporation. */ @@ -644,48 +652,3 @@ void skx_remove(void) kfree(d); } } - -#ifdef CONFIG_EDAC_DEBUG -/* - * Debug feature. - * Exercise the address decode logic by writing an address to - * /sys/kernel/debug/edac/dirname/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"); - -void setup_skx_debug(const char *dirname) -{ - skx_test = edac_debugfs_create_dir(dirname); - if (!skx_test) - return; - - if (!edac_debugfs_create_file("addr", 0200, skx_test, - NULL, &fops_u64_wo)) { - debugfs_remove(skx_test); - skx_test = NULL; - } -} - -void teardown_skx_debug(void) -{ - debugfs_remove_recursive(skx_test); -} -#endif /*CONFIG_EDAC_DEBUG*/ diff --git a/drivers/edac/skx_common.h b/drivers/edac/skx_common.h index d25374e34d4f..d18fa98669af 100644 --- a/drivers/edac/skx_common.h +++ b/drivers/edac/skx_common.h @@ -141,12 +141,4 @@ int skx_mce_check_error(struct notifier_block *nb, unsigned long val, void skx_remove(void); -#ifdef CONFIG_EDAC_DEBUG -void setup_skx_debug(const char *dirname); -void teardown_skx_debug(void); -#else -static inline void setup_skx_debug(const char *dirname) {} -static inline void teardown_skx_debug(void) {} -#endif /*CONFIG_EDAC_DEBUG*/ - #endif /* _SKX_COMM_EDAC_H */ |