diff options
-rw-r--r-- | arch/x86/kernel/cpu/mcheck/mce-apei.c | 4 | ||||
-rw-r--r-- | drivers/acpi/apei/Kconfig | 9 | ||||
-rw-r--r-- | drivers/acpi/apei/Makefile | 1 | ||||
-rw-r--r-- | drivers/acpi/apei/apei-base.c | 4 | ||||
-rw-r--r-- | drivers/acpi/apei/erst-dbg.c | 207 | ||||
-rw-r--r-- | drivers/acpi/apei/ghes.c | 172 | ||||
-rw-r--r-- | drivers/acpi/apei/hest.c | 76 | ||||
-rw-r--r-- | include/linux/cper.h | 8 |
8 files changed, 386 insertions, 95 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce-apei.c b/arch/x86/kernel/cpu/mcheck/mce-apei.c index 745b54f9be89..8209472b27a5 100644 --- a/arch/x86/kernel/cpu/mcheck/mce-apei.c +++ b/arch/x86/kernel/cpu/mcheck/mce-apei.c | |||
@@ -80,7 +80,7 @@ int apei_write_mce(struct mce *m) | |||
80 | rcd.hdr.revision = CPER_RECORD_REV; | 80 | rcd.hdr.revision = CPER_RECORD_REV; |
81 | rcd.hdr.signature_end = CPER_SIG_END; | 81 | rcd.hdr.signature_end = CPER_SIG_END; |
82 | rcd.hdr.section_count = 1; | 82 | rcd.hdr.section_count = 1; |
83 | rcd.hdr.error_severity = CPER_SER_FATAL; | 83 | rcd.hdr.error_severity = CPER_SEV_FATAL; |
84 | /* timestamp, platform_id, partition_id are all invalid */ | 84 | /* timestamp, platform_id, partition_id are all invalid */ |
85 | rcd.hdr.validation_bits = 0; | 85 | rcd.hdr.validation_bits = 0; |
86 | rcd.hdr.record_length = sizeof(rcd); | 86 | rcd.hdr.record_length = sizeof(rcd); |
@@ -96,7 +96,7 @@ int apei_write_mce(struct mce *m) | |||
96 | rcd.sec_hdr.validation_bits = 0; | 96 | rcd.sec_hdr.validation_bits = 0; |
97 | rcd.sec_hdr.flags = CPER_SEC_PRIMARY; | 97 | rcd.sec_hdr.flags = CPER_SEC_PRIMARY; |
98 | rcd.sec_hdr.section_type = CPER_SECTION_TYPE_MCE; | 98 | rcd.sec_hdr.section_type = CPER_SECTION_TYPE_MCE; |
99 | rcd.sec_hdr.section_severity = CPER_SER_FATAL; | 99 | rcd.sec_hdr.section_severity = CPER_SEV_FATAL; |
100 | 100 | ||
101 | memcpy(&rcd.mce, m, sizeof(*m)); | 101 | memcpy(&rcd.mce, m, sizeof(*m)); |
102 | 102 | ||
diff --git a/drivers/acpi/apei/Kconfig b/drivers/acpi/apei/Kconfig index f8c668f27b5a..907e350f1c7d 100644 --- a/drivers/acpi/apei/Kconfig +++ b/drivers/acpi/apei/Kconfig | |||
@@ -28,3 +28,12 @@ config ACPI_APEI_EINJ | |||
28 | EINJ provides a hardware error injection mechanism, it is | 28 | EINJ provides a hardware error injection mechanism, it is |
29 | mainly used for debugging and testing the other parts of | 29 | mainly used for debugging and testing the other parts of |
30 | APEI and some other RAS features. | 30 | APEI and some other RAS features. |
31 | |||
32 | config ACPI_APEI_ERST_DEBUG | ||
33 | tristate "APEI Error Record Serialization Table (ERST) Debug Support" | ||
34 | depends on ACPI_APEI | ||
35 | help | ||
36 | ERST is a way provided by APEI to save and retrieve hardware | ||
37 | error infomation to and from a persistent store. Enable this | ||
38 | if you want to debugging and testing the ERST kernel support | ||
39 | and firmware implementation. | ||
diff --git a/drivers/acpi/apei/Makefile b/drivers/acpi/apei/Makefile index b13b03a17789..d1d1bc0a4ee1 100644 --- a/drivers/acpi/apei/Makefile +++ b/drivers/acpi/apei/Makefile | |||
@@ -1,5 +1,6 @@ | |||
1 | obj-$(CONFIG_ACPI_APEI) += apei.o | 1 | obj-$(CONFIG_ACPI_APEI) += apei.o |
2 | obj-$(CONFIG_ACPI_APEI_GHES) += ghes.o | 2 | obj-$(CONFIG_ACPI_APEI_GHES) += ghes.o |
3 | obj-$(CONFIG_ACPI_APEI_EINJ) += einj.o | 3 | obj-$(CONFIG_ACPI_APEI_EINJ) += einj.o |
4 | obj-$(CONFIG_ACPI_APEI_ERST_DEBUG) += erst-dbg.o | ||
4 | 5 | ||
5 | apei-y := apei-base.o hest.o cper.o erst.o | 6 | apei-y := apei-base.o hest.o cper.o erst.o |
diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c index 216e1e948ff6..73fd0c7487c1 100644 --- a/drivers/acpi/apei/apei-base.c +++ b/drivers/acpi/apei/apei-base.c | |||
@@ -482,14 +482,14 @@ err_unmap_ioport: | |||
482 | list_for_each_entry(res, &resources->ioport, list) { | 482 | list_for_each_entry(res, &resources->ioport, list) { |
483 | if (res == res_bak) | 483 | if (res == res_bak) |
484 | break; | 484 | break; |
485 | release_mem_region(res->start, res->end - res->start); | 485 | release_region(res->start, res->end - res->start); |
486 | } | 486 | } |
487 | res_bak = NULL; | 487 | res_bak = NULL; |
488 | err_unmap_iomem: | 488 | err_unmap_iomem: |
489 | list_for_each_entry(res, &resources->iomem, list) { | 489 | list_for_each_entry(res, &resources->iomem, list) { |
490 | if (res == res_bak) | 490 | if (res == res_bak) |
491 | break; | 491 | break; |
492 | release_region(res->start, res->end - res->start); | 492 | release_mem_region(res->start, res->end - res->start); |
493 | } | 493 | } |
494 | return -EINVAL; | 494 | return -EINVAL; |
495 | } | 495 | } |
diff --git a/drivers/acpi/apei/erst-dbg.c b/drivers/acpi/apei/erst-dbg.c new file mode 100644 index 000000000000..5281ddda2777 --- /dev/null +++ b/drivers/acpi/apei/erst-dbg.c | |||
@@ -0,0 +1,207 @@ | |||
1 | /* | ||
2 | * APEI Error Record Serialization Table debug support | ||
3 | * | ||
4 | * ERST is a way provided by APEI to save and retrieve hardware error | ||
5 | * infomation to and from a persistent store. This file provide the | ||
6 | * debugging/testing support for ERST kernel support and firmware | ||
7 | * implementation. | ||
8 | * | ||
9 | * Copyright 2010 Intel Corp. | ||
10 | * Author: Huang Ying <ying.huang@intel.com> | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License version | ||
14 | * 2 as published by the Free Software Foundation. | ||
15 | * | ||
16 | * This program is distributed in the hope that it will be useful, | ||
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
19 | * GNU General Public License for more details. | ||
20 | * | ||
21 | * You should have received a copy of the GNU General Public License | ||
22 | * along with this program; if not, write to the Free Software | ||
23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
24 | */ | ||
25 | |||
26 | #include <linux/kernel.h> | ||
27 | #include <linux/module.h> | ||
28 | #include <linux/uaccess.h> | ||
29 | #include <acpi/apei.h> | ||
30 | #include <linux/miscdevice.h> | ||
31 | |||
32 | #include "apei-internal.h" | ||
33 | |||
34 | #define ERST_DBG_PFX "ERST DBG: " | ||
35 | |||
36 | #define ERST_DBG_RECORD_LEN_MAX 4096 | ||
37 | |||
38 | static void *erst_dbg_buf; | ||
39 | static unsigned int erst_dbg_buf_len; | ||
40 | |||
41 | /* Prevent erst_dbg_read/write from being invoked concurrently */ | ||
42 | static DEFINE_MUTEX(erst_dbg_mutex); | ||
43 | |||
44 | static int erst_dbg_open(struct inode *inode, struct file *file) | ||
45 | { | ||
46 | if (erst_disable) | ||
47 | return -ENODEV; | ||
48 | |||
49 | return nonseekable_open(inode, file); | ||
50 | } | ||
51 | |||
52 | static long erst_dbg_ioctl(struct file *f, unsigned int cmd, unsigned long arg) | ||
53 | { | ||
54 | int rc; | ||
55 | u64 record_id; | ||
56 | u32 record_count; | ||
57 | |||
58 | switch (cmd) { | ||
59 | case APEI_ERST_CLEAR_RECORD: | ||
60 | rc = copy_from_user(&record_id, (void __user *)arg, | ||
61 | sizeof(record_id)); | ||
62 | if (rc) | ||
63 | return -EFAULT; | ||
64 | return erst_clear(record_id); | ||
65 | case APEI_ERST_GET_RECORD_COUNT: | ||
66 | rc = erst_get_record_count(); | ||
67 | if (rc < 0) | ||
68 | return rc; | ||
69 | record_count = rc; | ||
70 | rc = put_user(record_count, (u32 __user *)arg); | ||
71 | if (rc) | ||
72 | return rc; | ||
73 | return 0; | ||
74 | default: | ||
75 | return -ENOTTY; | ||
76 | } | ||
77 | } | ||
78 | |||
79 | static ssize_t erst_dbg_read(struct file *filp, char __user *ubuf, | ||
80 | size_t usize, loff_t *off) | ||
81 | { | ||
82 | int rc; | ||
83 | ssize_t len = 0; | ||
84 | u64 id; | ||
85 | |||
86 | if (*off != 0) | ||
87 | return -EINVAL; | ||
88 | |||
89 | if (mutex_lock_interruptible(&erst_dbg_mutex) != 0) | ||
90 | return -EINTR; | ||
91 | |||
92 | retry_next: | ||
93 | rc = erst_get_next_record_id(&id); | ||
94 | if (rc) | ||
95 | goto out; | ||
96 | /* no more record */ | ||
97 | if (id == APEI_ERST_INVALID_RECORD_ID) | ||
98 | goto out; | ||
99 | retry: | ||
100 | rc = len = erst_read(id, erst_dbg_buf, erst_dbg_buf_len); | ||
101 | /* The record may be cleared by others, try read next record */ | ||
102 | if (rc == -ENOENT) | ||
103 | goto retry_next; | ||
104 | if (rc < 0) | ||
105 | goto out; | ||
106 | if (len > ERST_DBG_RECORD_LEN_MAX) { | ||
107 | pr_warning(ERST_DBG_PFX | ||
108 | "Record (ID: 0x%llx) length is too long: %zd\n", | ||
109 | id, len); | ||
110 | rc = -EIO; | ||
111 | goto out; | ||
112 | } | ||
113 | if (len > erst_dbg_buf_len) { | ||
114 | kfree(erst_dbg_buf); | ||
115 | rc = -ENOMEM; | ||
116 | erst_dbg_buf = kmalloc(len, GFP_KERNEL); | ||
117 | if (!erst_dbg_buf) | ||
118 | goto out; | ||
119 | erst_dbg_buf_len = len; | ||
120 | goto retry; | ||
121 | } | ||
122 | |||
123 | rc = -EINVAL; | ||
124 | if (len > usize) | ||
125 | goto out; | ||
126 | |||
127 | rc = -EFAULT; | ||
128 | if (copy_to_user(ubuf, erst_dbg_buf, len)) | ||
129 | goto out; | ||
130 | rc = 0; | ||
131 | out: | ||
132 | mutex_unlock(&erst_dbg_mutex); | ||
133 | return rc ? rc : len; | ||
134 | } | ||
135 | |||
136 | static ssize_t erst_dbg_write(struct file *filp, const char __user *ubuf, | ||
137 | size_t usize, loff_t *off) | ||
138 | { | ||
139 | int rc; | ||
140 | struct cper_record_header *rcd; | ||
141 | |||
142 | if (!capable(CAP_SYS_ADMIN)) | ||
143 | return -EPERM; | ||
144 | |||
145 | if (usize > ERST_DBG_RECORD_LEN_MAX) { | ||
146 | pr_err(ERST_DBG_PFX "Too long record to be written\n"); | ||
147 | return -EINVAL; | ||
148 | } | ||
149 | |||
150 | if (mutex_lock_interruptible(&erst_dbg_mutex)) | ||
151 | return -EINTR; | ||
152 | if (usize > erst_dbg_buf_len) { | ||
153 | kfree(erst_dbg_buf); | ||
154 | rc = -ENOMEM; | ||
155 | erst_dbg_buf = kmalloc(usize, GFP_KERNEL); | ||
156 | if (!erst_dbg_buf) | ||
157 | goto out; | ||
158 | erst_dbg_buf_len = usize; | ||
159 | } | ||
160 | rc = copy_from_user(erst_dbg_buf, ubuf, usize); | ||
161 | if (rc) { | ||
162 | rc = -EFAULT; | ||
163 | goto out; | ||
164 | } | ||
165 | rcd = erst_dbg_buf; | ||
166 | rc = -EINVAL; | ||
167 | if (rcd->record_length != usize) | ||
168 | goto out; | ||
169 | |||
170 | rc = erst_write(erst_dbg_buf); | ||
171 | |||
172 | out: | ||
173 | mutex_unlock(&erst_dbg_mutex); | ||
174 | return rc < 0 ? rc : usize; | ||
175 | } | ||
176 | |||
177 | static const struct file_operations erst_dbg_ops = { | ||
178 | .owner = THIS_MODULE, | ||
179 | .open = erst_dbg_open, | ||
180 | .read = erst_dbg_read, | ||
181 | .write = erst_dbg_write, | ||
182 | .unlocked_ioctl = erst_dbg_ioctl, | ||
183 | }; | ||
184 | |||
185 | static struct miscdevice erst_dbg_dev = { | ||
186 | .minor = MISC_DYNAMIC_MINOR, | ||
187 | .name = "erst_dbg", | ||
188 | .fops = &erst_dbg_ops, | ||
189 | }; | ||
190 | |||
191 | static __init int erst_dbg_init(void) | ||
192 | { | ||
193 | return misc_register(&erst_dbg_dev); | ||
194 | } | ||
195 | |||
196 | static __exit void erst_dbg_exit(void) | ||
197 | { | ||
198 | misc_deregister(&erst_dbg_dev); | ||
199 | kfree(erst_dbg_buf); | ||
200 | } | ||
201 | |||
202 | module_init(erst_dbg_init); | ||
203 | module_exit(erst_dbg_exit); | ||
204 | |||
205 | MODULE_AUTHOR("Huang Ying"); | ||
206 | MODULE_DESCRIPTION("APEI Error Record Serialization Table debug support"); | ||
207 | MODULE_LICENSE("GPL"); | ||
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index fd0cc016a099..385a6059714a 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c | |||
@@ -41,6 +41,8 @@ | |||
41 | #include <linux/interrupt.h> | 41 | #include <linux/interrupt.h> |
42 | #include <linux/cper.h> | 42 | #include <linux/cper.h> |
43 | #include <linux/kdebug.h> | 43 | #include <linux/kdebug.h> |
44 | #include <linux/platform_device.h> | ||
45 | #include <linux/mutex.h> | ||
44 | #include <acpi/apei.h> | 46 | #include <acpi/apei.h> |
45 | #include <acpi/atomicio.h> | 47 | #include <acpi/atomicio.h> |
46 | #include <acpi/hed.h> | 48 | #include <acpi/hed.h> |
@@ -87,6 +89,7 @@ struct ghes { | |||
87 | * used for that. | 89 | * used for that. |
88 | */ | 90 | */ |
89 | static LIST_HEAD(ghes_sci); | 91 | static LIST_HEAD(ghes_sci); |
92 | static DEFINE_MUTEX(ghes_list_mutex); | ||
90 | 93 | ||
91 | static struct ghes *ghes_new(struct acpi_hest_generic *generic) | 94 | static struct ghes *ghes_new(struct acpi_hest_generic *generic) |
92 | { | 95 | { |
@@ -132,26 +135,26 @@ static void ghes_fini(struct ghes *ghes) | |||
132 | } | 135 | } |
133 | 136 | ||
134 | enum { | 137 | enum { |
135 | GHES_SER_NO = 0x0, | 138 | GHES_SEV_NO = 0x0, |
136 | GHES_SER_CORRECTED = 0x1, | 139 | GHES_SEV_CORRECTED = 0x1, |
137 | GHES_SER_RECOVERABLE = 0x2, | 140 | GHES_SEV_RECOVERABLE = 0x2, |
138 | GHES_SER_PANIC = 0x3, | 141 | GHES_SEV_PANIC = 0x3, |
139 | }; | 142 | }; |
140 | 143 | ||
141 | static inline int ghes_severity(int severity) | 144 | static inline int ghes_severity(int severity) |
142 | { | 145 | { |
143 | switch (severity) { | 146 | switch (severity) { |
144 | case CPER_SER_INFORMATIONAL: | 147 | case CPER_SEV_INFORMATIONAL: |
145 | return GHES_SER_NO; | 148 | return GHES_SEV_NO; |
146 | case CPER_SER_CORRECTED: | 149 | case CPER_SEV_CORRECTED: |
147 | return GHES_SER_CORRECTED; | 150 | return GHES_SEV_CORRECTED; |
148 | case CPER_SER_RECOVERABLE: | 151 | case CPER_SEV_RECOVERABLE: |
149 | return GHES_SER_RECOVERABLE; | 152 | return GHES_SEV_RECOVERABLE; |
150 | case CPER_SER_FATAL: | 153 | case CPER_SEV_FATAL: |
151 | return GHES_SER_PANIC; | 154 | return GHES_SEV_PANIC; |
152 | default: | 155 | default: |
153 | /* Unkown, go panic */ | 156 | /* Unkown, go panic */ |
154 | return GHES_SER_PANIC; | 157 | return GHES_SEV_PANIC; |
155 | } | 158 | } |
156 | } | 159 | } |
157 | 160 | ||
@@ -237,16 +240,16 @@ static void ghes_clear_estatus(struct ghes *ghes) | |||
237 | 240 | ||
238 | static void ghes_do_proc(struct ghes *ghes) | 241 | static void ghes_do_proc(struct ghes *ghes) |
239 | { | 242 | { |
240 | int ser, processed = 0; | 243 | int sev, processed = 0; |
241 | struct acpi_hest_generic_data *gdata; | 244 | struct acpi_hest_generic_data *gdata; |
242 | 245 | ||
243 | ser = ghes_severity(ghes->estatus->error_severity); | 246 | sev = ghes_severity(ghes->estatus->error_severity); |
244 | apei_estatus_for_each_section(ghes->estatus, gdata) { | 247 | apei_estatus_for_each_section(ghes->estatus, gdata) { |
245 | #ifdef CONFIG_X86_MCE | 248 | #ifdef CONFIG_X86_MCE |
246 | if (!uuid_le_cmp(*(uuid_le *)gdata->section_type, | 249 | if (!uuid_le_cmp(*(uuid_le *)gdata->section_type, |
247 | CPER_SEC_PLATFORM_MEM)) { | 250 | CPER_SEC_PLATFORM_MEM)) { |
248 | apei_mce_report_mem_error( | 251 | apei_mce_report_mem_error( |
249 | ser == GHES_SER_CORRECTED, | 252 | sev == GHES_SEV_CORRECTED, |
250 | (struct cper_sec_mem_err *)(gdata+1)); | 253 | (struct cper_sec_mem_err *)(gdata+1)); |
251 | processed = 1; | 254 | processed = 1; |
252 | } | 255 | } |
@@ -293,18 +296,15 @@ static struct notifier_block ghes_notifier_sci = { | |||
293 | .notifier_call = ghes_notify_sci, | 296 | .notifier_call = ghes_notify_sci, |
294 | }; | 297 | }; |
295 | 298 | ||
296 | static int hest_ghes_parse(struct acpi_hest_header *hest_hdr, void *data) | 299 | static int __devinit ghes_probe(struct platform_device *ghes_dev) |
297 | { | 300 | { |
298 | struct acpi_hest_generic *generic; | 301 | struct acpi_hest_generic *generic; |
299 | struct ghes *ghes = NULL; | 302 | struct ghes *ghes = NULL; |
300 | int rc = 0; | 303 | int rc = -EINVAL; |
301 | 304 | ||
302 | if (hest_hdr->type != ACPI_HEST_TYPE_GENERIC_ERROR) | 305 | generic = ghes_dev->dev.platform_data; |
303 | return 0; | ||
304 | |||
305 | generic = (struct acpi_hest_generic *)hest_hdr; | ||
306 | if (!generic->enabled) | 306 | if (!generic->enabled) |
307 | return 0; | 307 | return -ENODEV; |
308 | 308 | ||
309 | if (generic->error_block_length < | 309 | if (generic->error_block_length < |
310 | sizeof(struct acpi_hest_generic_status)) { | 310 | sizeof(struct acpi_hest_generic_status)) { |
@@ -327,62 +327,91 @@ static int hest_ghes_parse(struct acpi_hest_header *hest_hdr, void *data) | |||
327 | ghes = NULL; | 327 | ghes = NULL; |
328 | goto err; | 328 | goto err; |
329 | } | 329 | } |
330 | switch (generic->notify.type) { | 330 | if (generic->notify.type == ACPI_HEST_NOTIFY_SCI) { |
331 | case ACPI_HEST_NOTIFY_POLLED: | 331 | mutex_lock(&ghes_list_mutex); |
332 | pr_warning(GHES_PFX | ||
333 | "Generic hardware error source: %d notified via POLL is not supported!\n", | ||
334 | generic->header.source_id); | ||
335 | break; | ||
336 | case ACPI_HEST_NOTIFY_EXTERNAL: | ||
337 | case ACPI_HEST_NOTIFY_LOCAL: | ||
338 | pr_warning(GHES_PFX | ||
339 | "Generic hardware error source: %d notified via IRQ is not supported!\n", | ||
340 | generic->header.source_id); | ||
341 | break; | ||
342 | case ACPI_HEST_NOTIFY_SCI: | ||
343 | if (list_empty(&ghes_sci)) | 332 | if (list_empty(&ghes_sci)) |
344 | register_acpi_hed_notifier(&ghes_notifier_sci); | 333 | register_acpi_hed_notifier(&ghes_notifier_sci); |
345 | list_add_rcu(&ghes->list, &ghes_sci); | 334 | list_add_rcu(&ghes->list, &ghes_sci); |
346 | break; | 335 | mutex_unlock(&ghes_list_mutex); |
347 | case ACPI_HEST_NOTIFY_NMI: | 336 | } else { |
348 | pr_warning(GHES_PFX | 337 | unsigned char *notify = NULL; |
349 | "Generic hardware error source: %d notified via NMI is not supported!\n", | 338 | |
350 | generic->header.source_id); | 339 | switch (generic->notify.type) { |
351 | break; | 340 | case ACPI_HEST_NOTIFY_POLLED: |
352 | default: | 341 | notify = "POLL"; |
353 | pr_warning(FW_WARN GHES_PFX | 342 | break; |
354 | "Unknown notification type: %u for generic hardware error source: %d\n", | 343 | case ACPI_HEST_NOTIFY_EXTERNAL: |
355 | generic->notify.type, generic->header.source_id); | 344 | case ACPI_HEST_NOTIFY_LOCAL: |
356 | break; | 345 | notify = "IRQ"; |
346 | break; | ||
347 | case ACPI_HEST_NOTIFY_NMI: | ||
348 | notify = "NMI"; | ||
349 | break; | ||
350 | } | ||
351 | if (notify) { | ||
352 | pr_warning(GHES_PFX | ||
353 | "Generic hardware error source: %d notified via %s is not supported!\n", | ||
354 | generic->header.source_id, notify); | ||
355 | } else { | ||
356 | pr_warning(FW_WARN GHES_PFX | ||
357 | "Unknown notification type: %u for generic hardware error source: %d\n", | ||
358 | generic->notify.type, generic->header.source_id); | ||
359 | } | ||
360 | rc = -ENODEV; | ||
361 | goto err; | ||
357 | } | 362 | } |
363 | platform_set_drvdata(ghes_dev, ghes); | ||
358 | 364 | ||
359 | return 0; | 365 | return 0; |
360 | err: | 366 | err: |
361 | if (ghes) | 367 | if (ghes) { |
362 | ghes_fini(ghes); | 368 | ghes_fini(ghes); |
369 | kfree(ghes); | ||
370 | } | ||
363 | return rc; | 371 | return rc; |
364 | } | 372 | } |
365 | 373 | ||
366 | static void ghes_cleanup(void) | 374 | static int __devexit ghes_remove(struct platform_device *ghes_dev) |
367 | { | 375 | { |
368 | struct ghes *ghes, *nghes; | 376 | struct ghes *ghes; |
377 | struct acpi_hest_generic *generic; | ||
369 | 378 | ||
370 | if (!list_empty(&ghes_sci)) | 379 | ghes = platform_get_drvdata(ghes_dev); |
371 | unregister_acpi_hed_notifier(&ghes_notifier_sci); | 380 | generic = ghes->generic; |
381 | |||
382 | switch (generic->notify.type) { | ||
383 | case ACPI_HEST_NOTIFY_SCI: | ||
384 | mutex_lock(&ghes_list_mutex); | ||
385 | list_del_rcu(&ghes->list); | ||
386 | if (list_empty(&ghes_sci)) | ||
387 | unregister_acpi_hed_notifier(&ghes_notifier_sci); | ||
388 | mutex_unlock(&ghes_list_mutex); | ||
389 | break; | ||
390 | default: | ||
391 | BUG(); | ||
392 | break; | ||
393 | } | ||
372 | 394 | ||
373 | synchronize_rcu(); | 395 | synchronize_rcu(); |
396 | ghes_fini(ghes); | ||
397 | kfree(ghes); | ||
374 | 398 | ||
375 | list_for_each_entry_safe(ghes, nghes, &ghes_sci, list) { | 399 | platform_set_drvdata(ghes_dev, NULL); |
376 | list_del(&ghes->list); | 400 | |
377 | ghes_fini(ghes); | 401 | return 0; |
378 | kfree(ghes); | ||
379 | } | ||
380 | } | 402 | } |
381 | 403 | ||
404 | static struct platform_driver ghes_platform_driver = { | ||
405 | .driver = { | ||
406 | .name = "GHES", | ||
407 | .owner = THIS_MODULE, | ||
408 | }, | ||
409 | .probe = ghes_probe, | ||
410 | .remove = ghes_remove, | ||
411 | }; | ||
412 | |||
382 | static int __init ghes_init(void) | 413 | static int __init ghes_init(void) |
383 | { | 414 | { |
384 | int rc; | ||
385 | |||
386 | if (acpi_disabled) | 415 | if (acpi_disabled) |
387 | return -ENODEV; | 416 | return -ENODEV; |
388 | 417 | ||
@@ -391,32 +420,12 @@ static int __init ghes_init(void) | |||
391 | return -EINVAL; | 420 | return -EINVAL; |
392 | } | 421 | } |
393 | 422 | ||
394 | rc = apei_hest_parse(hest_ghes_parse, NULL); | 423 | return platform_driver_register(&ghes_platform_driver); |
395 | if (rc) { | ||
396 | pr_err(GHES_PFX | ||
397 | "Error during parsing HEST generic hardware error sources.\n"); | ||
398 | goto err_cleanup; | ||
399 | } | ||
400 | |||
401 | if (list_empty(&ghes_sci)) { | ||
402 | pr_info(GHES_PFX | ||
403 | "No functional generic hardware error sources.\n"); | ||
404 | rc = -ENODEV; | ||
405 | goto err_cleanup; | ||
406 | } | ||
407 | |||
408 | pr_info(GHES_PFX | ||
409 | "Generic Hardware Error Source support is initialized.\n"); | ||
410 | |||
411 | return 0; | ||
412 | err_cleanup: | ||
413 | ghes_cleanup(); | ||
414 | return rc; | ||
415 | } | 424 | } |
416 | 425 | ||
417 | static void __exit ghes_exit(void) | 426 | static void __exit ghes_exit(void) |
418 | { | 427 | { |
419 | ghes_cleanup(); | 428 | platform_driver_unregister(&ghes_platform_driver); |
420 | } | 429 | } |
421 | 430 | ||
422 | module_init(ghes_init); | 431 | module_init(ghes_init); |
@@ -425,3 +434,4 @@ module_exit(ghes_exit); | |||
425 | MODULE_AUTHOR("Huang Ying"); | 434 | MODULE_AUTHOR("Huang Ying"); |
426 | MODULE_DESCRIPTION("APEI Generic Hardware Error Source support"); | 435 | MODULE_DESCRIPTION("APEI Generic Hardware Error Source support"); |
427 | MODULE_LICENSE("GPL"); | 436 | MODULE_LICENSE("GPL"); |
437 | MODULE_ALIAS("platform:GHES"); | ||
diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c index e7f40d362cb3..343168d18266 100644 --- a/drivers/acpi/apei/hest.c +++ b/drivers/acpi/apei/hest.c | |||
@@ -34,6 +34,7 @@ | |||
34 | #include <linux/kdebug.h> | 34 | #include <linux/kdebug.h> |
35 | #include <linux/highmem.h> | 35 | #include <linux/highmem.h> |
36 | #include <linux/io.h> | 36 | #include <linux/io.h> |
37 | #include <linux/platform_device.h> | ||
37 | #include <acpi/apei.h> | 38 | #include <acpi/apei.h> |
38 | 39 | ||
39 | #include "apei-internal.h" | 40 | #include "apei-internal.h" |
@@ -47,11 +48,6 @@ EXPORT_SYMBOL_GPL(hest_disable); | |||
47 | 48 | ||
48 | static struct acpi_table_hest *hest_tab; | 49 | static struct acpi_table_hest *hest_tab; |
49 | 50 | ||
50 | static int hest_void_parse(struct acpi_hest_header *hest_hdr, void *data) | ||
51 | { | ||
52 | return 0; | ||
53 | } | ||
54 | |||
55 | static int hest_esrc_len_tab[ACPI_HEST_TYPE_RESERVED] = { | 51 | static int hest_esrc_len_tab[ACPI_HEST_TYPE_RESERVED] = { |
56 | [ACPI_HEST_TYPE_IA32_CHECK] = -1, /* need further calculation */ | 52 | [ACPI_HEST_TYPE_IA32_CHECK] = -1, /* need further calculation */ |
57 | [ACPI_HEST_TYPE_IA32_CORRECTED_CHECK] = -1, | 53 | [ACPI_HEST_TYPE_IA32_CORRECTED_CHECK] = -1, |
@@ -125,6 +121,69 @@ int apei_hest_parse(apei_hest_func_t func, void *data) | |||
125 | } | 121 | } |
126 | EXPORT_SYMBOL_GPL(apei_hest_parse); | 122 | EXPORT_SYMBOL_GPL(apei_hest_parse); |
127 | 123 | ||
124 | struct ghes_arr { | ||
125 | struct platform_device **ghes_devs; | ||
126 | unsigned int count; | ||
127 | }; | ||
128 | |||
129 | static int hest_parse_ghes_count(struct acpi_hest_header *hest_hdr, void *data) | ||
130 | { | ||
131 | int *count = data; | ||
132 | |||
133 | if (hest_hdr->type == ACPI_HEST_TYPE_GENERIC_ERROR) | ||
134 | (*count)++; | ||
135 | return 0; | ||
136 | } | ||
137 | |||
138 | static int hest_parse_ghes(struct acpi_hest_header *hest_hdr, void *data) | ||
139 | { | ||
140 | struct acpi_hest_generic *generic; | ||
141 | struct platform_device *ghes_dev; | ||
142 | struct ghes_arr *ghes_arr = data; | ||
143 | int rc; | ||
144 | |||
145 | if (hest_hdr->type != ACPI_HEST_TYPE_GENERIC_ERROR) | ||
146 | return 0; | ||
147 | generic = (struct acpi_hest_generic *)hest_hdr; | ||
148 | if (!generic->enabled) | ||
149 | return 0; | ||
150 | ghes_dev = platform_device_alloc("GHES", hest_hdr->source_id); | ||
151 | if (!ghes_dev) | ||
152 | return -ENOMEM; | ||
153 | ghes_dev->dev.platform_data = generic; | ||
154 | rc = platform_device_add(ghes_dev); | ||
155 | if (rc) | ||
156 | goto err; | ||
157 | ghes_arr->ghes_devs[ghes_arr->count++] = ghes_dev; | ||
158 | |||
159 | return 0; | ||
160 | err: | ||
161 | platform_device_put(ghes_dev); | ||
162 | return rc; | ||
163 | } | ||
164 | |||
165 | static int hest_ghes_dev_register(unsigned int ghes_count) | ||
166 | { | ||
167 | int rc, i; | ||
168 | struct ghes_arr ghes_arr; | ||
169 | |||
170 | ghes_arr.count = 0; | ||
171 | ghes_arr.ghes_devs = kmalloc(sizeof(void *) * ghes_count, GFP_KERNEL); | ||
172 | if (!ghes_arr.ghes_devs) | ||
173 | return -ENOMEM; | ||
174 | |||
175 | rc = apei_hest_parse(hest_parse_ghes, &ghes_arr); | ||
176 | if (rc) | ||
177 | goto err; | ||
178 | out: | ||
179 | kfree(ghes_arr.ghes_devs); | ||
180 | return rc; | ||
181 | err: | ||
182 | for (i = 0; i < ghes_arr.count; i++) | ||
183 | platform_device_unregister(ghes_arr.ghes_devs[i]); | ||
184 | goto out; | ||
185 | } | ||
186 | |||
128 | static int __init setup_hest_disable(char *str) | 187 | static int __init setup_hest_disable(char *str) |
129 | { | 188 | { |
130 | hest_disable = 1; | 189 | hest_disable = 1; |
@@ -137,6 +196,7 @@ static int __init hest_init(void) | |||
137 | { | 196 | { |
138 | acpi_status status; | 197 | acpi_status status; |
139 | int rc = -ENODEV; | 198 | int rc = -ENODEV; |
199 | unsigned int ghes_count = 0; | ||
140 | 200 | ||
141 | if (acpi_disabled) | 201 | if (acpi_disabled) |
142 | goto err; | 202 | goto err; |
@@ -158,7 +218,11 @@ static int __init hest_init(void) | |||
158 | goto err; | 218 | goto err; |
159 | } | 219 | } |
160 | 220 | ||
161 | rc = apei_hest_parse(hest_void_parse, NULL); | 221 | rc = apei_hest_parse(hest_parse_ghes_count, &ghes_count); |
222 | if (rc) | ||
223 | goto err; | ||
224 | |||
225 | rc = hest_ghes_dev_register(ghes_count); | ||
162 | if (rc) | 226 | if (rc) |
163 | goto err; | 227 | goto err; |
164 | 228 | ||
diff --git a/include/linux/cper.h b/include/linux/cper.h index 4b38f905b705..bf972f81e2a7 100644 --- a/include/linux/cper.h +++ b/include/linux/cper.h | |||
@@ -39,10 +39,10 @@ | |||
39 | * Severity difinition for error_severity in struct cper_record_header | 39 | * Severity difinition for error_severity in struct cper_record_header |
40 | * and section_severity in struct cper_section_descriptor | 40 | * and section_severity in struct cper_section_descriptor |
41 | */ | 41 | */ |
42 | #define CPER_SER_RECOVERABLE 0x0 | 42 | #define CPER_SEV_RECOVERABLE 0x0 |
43 | #define CPER_SER_FATAL 0x1 | 43 | #define CPER_SEV_FATAL 0x1 |
44 | #define CPER_SER_CORRECTED 0x2 | 44 | #define CPER_SEV_CORRECTED 0x2 |
45 | #define CPER_SER_INFORMATIONAL 0x3 | 45 | #define CPER_SEV_INFORMATIONAL 0x3 |
46 | 46 | ||
47 | /* | 47 | /* |
48 | * Validation bits difinition for validation_bits in struct | 48 | * Validation bits difinition for validation_bits in struct |