| H A D | ghes.c | 48 #include <acpi/ghes.h>
237 static struct ghes *ghes_new(struct acpi_hest_generic *generic) ghes_new()
239 struct ghes *ghes; ghes_new() local
243 ghes = kzalloc(sizeof(*ghes), GFP_KERNEL); ghes_new()
244 if (!ghes) ghes_new()
246 ghes->generic = generic; ghes_new()
258 ghes->estatus = kmalloc(error_block_length, GFP_KERNEL); ghes_new()
259 if (!ghes->estatus) { ghes_new()
264 return ghes; ghes_new()
269 kfree(ghes); ghes_new()
273 static void ghes_fini(struct ghes *ghes) ghes_fini() argument
275 kfree(ghes->estatus); ghes_fini()
276 apei_unmap_generic_address(&ghes->generic->error_status_address); ghes_fini()
333 static int ghes_read_estatus(struct ghes *ghes, int silent) ghes_read_estatus() argument
335 struct acpi_hest_generic *g = ghes->generic; ghes_read_estatus()
351 ghes_copy_tofrom_phys(ghes->estatus, buf_paddr, ghes_read_estatus()
352 sizeof(*ghes->estatus), 1); ghes_read_estatus()
353 if (!ghes->estatus->block_status) ghes_read_estatus()
356 ghes->buffer_paddr = buf_paddr; ghes_read_estatus()
357 ghes->flags |= GHES_TO_CLEAR; ghes_read_estatus()
360 len = cper_estatus_len(ghes->estatus); ghes_read_estatus()
361 if (len < sizeof(*ghes->estatus)) ghes_read_estatus()
363 if (len > ghes->generic->error_block_length) ghes_read_estatus()
365 if (cper_estatus_check_header(ghes->estatus)) ghes_read_estatus()
367 ghes_copy_tofrom_phys(ghes->estatus + 1, ghes_read_estatus()
368 buf_paddr + sizeof(*ghes->estatus), ghes_read_estatus()
369 len - sizeof(*ghes->estatus), 1); ghes_read_estatus()
370 if (cper_estatus_check(ghes->estatus)) ghes_read_estatus()
381 static void ghes_clear_estatus(struct ghes *ghes) ghes_clear_estatus() argument
383 ghes->estatus->block_status = 0; ghes_clear_estatus()
384 if (!(ghes->flags & GHES_TO_CLEAR)) ghes_clear_estatus()
386 ghes_copy_tofrom_phys(ghes->estatus, ghes->buffer_paddr, ghes_clear_estatus()
387 sizeof(ghes->estatus->block_status), 0); ghes_clear_estatus()
388 ghes->flags &= ~GHES_TO_CLEAR; ghes_clear_estatus()
423 static void ghes_do_proc(struct ghes *ghes, ghes_do_proc() argument
436 ghes_edac_report_mem_error(ghes, sev, mem_err); apei_estatus_for_each_section()
646 static int ghes_proc(struct ghes *ghes) ghes_proc() argument
650 rc = ghes_read_estatus(ghes, 0); ghes_proc()
653 if (!ghes_estatus_cached(ghes->estatus)) { ghes_proc()
654 if (ghes_print_estatus(NULL, ghes->generic, ghes->estatus)) ghes_proc()
655 ghes_estatus_cache_add(ghes->generic, ghes->estatus); ghes_proc()
657 ghes_do_proc(ghes, ghes->estatus); ghes_proc()
659 ghes_clear_estatus(ghes); ghes_proc()
663 static void ghes_add_timer(struct ghes *ghes) ghes_add_timer() argument
665 struct acpi_hest_generic *g = ghes->generic; ghes_add_timer()
674 ghes->timer.expires = round_jiffies_relative(expire); ghes_add_timer()
675 add_timer(&ghes->timer); ghes_add_timer()
680 struct ghes *ghes = (void *)data; ghes_poll_func() local
682 ghes_proc(ghes); ghes_poll_func()
683 if (!(ghes->flags & GHES_EXITING)) ghes_poll_func()
684 ghes_add_timer(ghes); ghes_poll_func()
689 struct ghes *ghes = data; ghes_irq_func() local
692 rc = ghes_proc(ghes); ghes_irq_func()
702 struct ghes *ghes; ghes_notify_sci() local
706 list_for_each_entry_rcu(ghes, &ghes_sci, list) { ghes_notify_sci()
707 if (!ghes_proc(ghes)) ghes_notify_sci()
762 ghes_do_proc(estatus_node->ghes, estatus); ghes_proc_in_irq()
801 static void __process_error(struct ghes *ghes) __process_error() argument
808 if (ghes_estatus_cached(ghes->estatus)) __process_error()
811 len = cper_estatus_len(ghes->estatus); __process_error()
818 estatus_node->ghes = ghes; __process_error()
819 estatus_node->generic = ghes->generic; __process_error()
821 memcpy(estatus, ghes->estatus, len); __process_error()
826 static void __ghes_panic(struct ghes *ghes) __ghes_panic() argument
830 __ghes_print_estatus(KERN_EMERG, ghes->generic, ghes->estatus); __ghes_panic()
840 struct ghes *ghes; ghes_notify_nmi() local
846 list_for_each_entry_rcu(ghes, &ghes_nmi, list) { ghes_notify_nmi()
847 if (ghes_read_estatus(ghes, 1)) { ghes_notify_nmi()
848 ghes_clear_estatus(ghes); ghes_notify_nmi()
852 sev = ghes_severity(ghes->estatus->error_severity); ghes_notify_nmi()
854 __ghes_panic(ghes); ghes_notify_nmi()
856 if (!(ghes->flags & GHES_TO_CLEAR)) ghes_notify_nmi()
859 __process_error(ghes); ghes_notify_nmi()
860 ghes_clear_estatus(ghes); ghes_notify_nmi()
892 static void ghes_nmi_add(struct ghes *ghes) ghes_nmi_add() argument
896 len = ghes_esource_prealloc_size(ghes->generic); ghes_nmi_add()
900 register_nmi_handler(NMI_LOCAL, ghes_notify_nmi, 0, "ghes"); ghes_nmi_add()
901 list_add_rcu(&ghes->list, &ghes_nmi); ghes_nmi_add()
905 static void ghes_nmi_remove(struct ghes *ghes) ghes_nmi_remove() argument
910 list_del_rcu(&ghes->list); ghes_nmi_remove()
912 unregister_nmi_handler(NMI_LOCAL, "ghes"); ghes_nmi_remove()
915 * To synchronize with NMI handler, ghes can only be ghes_nmi_remove()
919 len = ghes_esource_prealloc_size(ghes->generic); ghes_nmi_remove()
928 static inline void ghes_nmi_add(struct ghes *ghes) ghes_nmi_add() argument
931 ghes->generic->header.source_id); ghes_nmi_add()
935 static inline void ghes_nmi_remove(struct ghes *ghes) ghes_nmi_remove() argument
938 ghes->generic->header.source_id); ghes_nmi_remove()
950 struct ghes *ghes = NULL; ghes_probe() local
988 ghes = ghes_new(generic); ghes_probe()
989 if (IS_ERR(ghes)) { ghes_probe()
990 rc = PTR_ERR(ghes); ghes_probe()
991 ghes = NULL; ghes_probe()
995 rc = ghes_edac_register(ghes, &ghes_dev->dev); ghes_probe()
1001 ghes->timer.function = ghes_poll_func; ghes_probe()
1002 ghes->timer.data = (unsigned long)ghes; ghes_probe()
1003 init_timer_deferrable(&ghes->timer); ghes_probe()
1004 ghes_add_timer(ghes); ghes_probe()
1008 rc = acpi_gsi_to_irq(generic->notify.vector, &ghes->irq); ghes_probe()
1014 rc = request_irq(ghes->irq, ghes_irq_func, 0, "GHES IRQ", ghes); ghes_probe()
1025 list_add_rcu(&ghes->list, &ghes_sci); ghes_probe()
1029 ghes_nmi_add(ghes); ghes_probe()
1034 platform_set_drvdata(ghes_dev, ghes); ghes_probe()
1038 ghes_edac_unregister(ghes); ghes_probe()
1040 if (ghes) { ghes_probe()
1041 ghes_fini(ghes); ghes_probe()
1042 kfree(ghes); ghes_probe()
1049 struct ghes *ghes; ghes_remove() local
1052 ghes = platform_get_drvdata(ghes_dev); ghes_remove()
1053 generic = ghes->generic; ghes_remove()
1055 ghes->flags |= GHES_EXITING; ghes_remove()
1058 del_timer_sync(&ghes->timer); ghes_remove()
1061 free_irq(ghes->irq, ghes); ghes_remove()
1065 list_del_rcu(&ghes->list); ghes_remove()
1071 ghes_nmi_remove(ghes); ghes_remove()
1078 ghes_fini(ghes); ghes_remove()
1080 ghes_edac_unregister(ghes); ghes_remove()
1082 kfree(ghes); ghes_remove()
|