* File: mca.c
* Purpose: Generic MCA handling layer
*
- * Updated for latest kernel
* Copyright (C) 2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*
* Copyright (C) 2002 Dell Inc.
- * Copyright (C) Matt Domsch (Matt_Domsch@dell.com)
+ * Copyright (C) Matt Domsch <Matt_Domsch@dell.com>
*
* Copyright (C) 2002 Intel
- * Copyright (C) Jenna Hall (jenna.s.hall@intel.com)
+ * Copyright (C) Jenna Hall <jenna.s.hall@intel.com>
*
* Copyright (C) 2001 Intel
- * Copyright (C) Fred Lewis (frederick.v.lewis@intel.com)
+ * Copyright (C) Fred Lewis <frederick.v.lewis@intel.com>
*
* Copyright (C) 2000 Intel
- * Copyright (C) Chuck Fleckenstein (cfleck@co.intel.com)
+ * Copyright (C) Chuck Fleckenstein <cfleck@co.intel.com>
*
- * Copyright (C) 1999, 2004 Silicon Graphics, Inc.
- * Copyright (C) Vijay Chander(vijay@engr.sgi.com)
+ * Copyright (C) 1999, 2004-2008 Silicon Graphics, Inc.
+ * Copyright (C) Vijay Chander <vijay@engr.sgi.com>
*
- * 03/04/15 D. Mosberger Added INIT backtrace support.
- * 02/03/25 M. Domsch GUID cleanups
+ * Copyright (C) 2006 FUJITSU LIMITED
+ * Copyright (C) Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
*
- * 02/01/04 J. Hall Aligned MCA stack to 16 bytes, added platform vs. CPU
- * error flag, set SAL default return values, changed
- * error record structure to linked list, added init call
- * to sal_get_state_info_size().
+ * 2000-03-29 Chuck Fleckenstein <cfleck@co.intel.com>
+ * Fixed PAL/SAL update issues, began MCA bug fixes, logging issues,
+ * added min save state dump, added INIT handler.
*
- * 01/01/03 F. Lewis Added setup of CMCI and CPEI IRQs, logging of corrected
- * platform errors, completed code for logging of
- * corrected & uncorrected machine check errors, and
- * updated for conformance with Nov. 2000 revision of the
- * SAL 3.0 spec.
- * 00/03/29 C. Fleckenstein Fixed PAL/SAL update issues, began MCA bug fixes, logging issues,
- * added min save state dump, added INIT handler.
+ * 2001-01-03 Fred Lewis <frederick.v.lewis@intel.com>
+ * Added setup of CMCI and CPEI IRQs, logging of corrected platform
+ * errors, completed code for logging of corrected & uncorrected
+ * machine check errors, and updated for conformance with Nov. 2000
+ * revision of the SAL 3.0 spec.
+ *
+ * 2002-01-04 Jenna Hall <jenna.s.hall@intel.com>
+ * Aligned MCA stack to 16 bytes, added platform vs. CPU error flag,
+ * set SAL default return values, changed error record structure to
+ * linked list, added init call to sal_get_state_info_size().
+ *
+ * 2002-03-25 Matt Domsch <Matt_Domsch@dell.com>
+ * GUID cleanups.
+ *
+ * 2003-04-15 David Mosberger-Tang <davidm@hpl.hp.com>
+ * Added INIT backtrace support.
*
* 2003-12-08 Keith Owens <kaos@sgi.com>
- * smp_call_function() must not be called from interrupt context (can
- * deadlock on tasklist_lock). Use keventd to call smp_call_function().
+ * smp_call_function() must not be called from interrupt context
+ * (can deadlock on tasklist_lock).
+ * Use keventd to call smp_call_function().
*
* 2004-02-01 Keith Owens <kaos@sgi.com>
- * Avoid deadlock when using printk() for MCA and INIT records.
- * Delete all record printing code, moved to salinfo_decode in user space.
- * Mark variables and functions static where possible.
- * Delete dead variables and functions.
- * Reorder to remove the need for forward declarations and to consolidate
- * related code.
+ * Avoid deadlock when using printk() for MCA and INIT records.
+ * Delete all record printing code, moved to salinfo_decode in user
+ * space. Mark variables and functions static where possible.
+ * Delete dead variables and functions. Reorder to remove the need
+ * for forward declarations and to consolidate related code.
*
* 2005-08-12 Keith Owens <kaos@sgi.com>
- * Convert MCA/INIT handlers to use per event stacks and SAL/OS state.
+ * Convert MCA/INIT handlers to use per event stacks and SAL/OS
+ * state.
*
* 2005-10-07 Keith Owens <kaos@sgi.com>
* Add notify_die() hooks.
*
* 2006-09-15 Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
- * Add printing support for MCA/INIT.
+ * Add printing support for MCA/INIT.
*
* 2007-04-27 Russ Anderson <rja@sgi.com>
* Support multiple cpus going through OS_MCA in the same event.
/* Caller prevents this from being called after init */
static void * __init_refok mca_bootmem(void)
{
- void *p;
-
- p = alloc_bootmem(sizeof(struct ia64_mca_cpu) * NR_CPUS +
- KERNEL_STACK_SIZE);
- return (void *)ALIGN((unsigned long)p, KERNEL_STACK_SIZE);
+ return __alloc_bootmem(sizeof(struct ia64_mca_cpu),
+ KERNEL_STACK_SIZE, 0);
}
/* Do per-CPU MCA-related initialization. */
ia64_mca_cpu_init(void *cpu_data)
{
void *pal_vaddr;
+ void *data;
+ long sz = sizeof(struct ia64_mca_cpu);
+ int cpu = smp_processor_id();
static int first_time = 1;
- if (first_time) {
- void *mca_data;
- int cpu;
-
- first_time = 0;
- mca_data = mca_bootmem();
- for (cpu = 0; cpu < NR_CPUS; cpu++) {
- format_mca_init_stack(mca_data,
- offsetof(struct ia64_mca_cpu, mca_stack),
- "MCA", cpu);
- format_mca_init_stack(mca_data,
- offsetof(struct ia64_mca_cpu, init_stack),
- "INIT", cpu);
- __per_cpu_mca[cpu] = __pa(mca_data);
- mca_data += sizeof(struct ia64_mca_cpu);
- }
- }
-
/*
- * The MCA info structure was allocated earlier and its
- * physical address saved in __per_cpu_mca[cpu]. Copy that
- * address * to ia64_mca_data so we can access it as a per-CPU
- * variable.
+ * Structure will already be allocated if cpu has been online,
+ * then offlined.
*/
- __get_cpu_var(ia64_mca_data) = __per_cpu_mca[smp_processor_id()];
+ if (__per_cpu_mca[cpu]) {
+ data = __va(__per_cpu_mca[cpu]);
+ } else {
+ if (first_time) {
+ data = mca_bootmem();
+ first_time = 0;
+ } else
+ data = page_address(alloc_pages_node(numa_node_id(),
+ GFP_KERNEL, get_order(sz)));
+ if (!data)
+ panic("Could not allocate MCA memory for cpu %d\n",
+ cpu);
+ }
+ format_mca_init_stack(data, offsetof(struct ia64_mca_cpu, mca_stack),
+ "MCA", cpu);
+ format_mca_init_stack(data, offsetof(struct ia64_mca_cpu, init_stack),
+ "INIT", cpu);
+ __get_cpu_var(ia64_mca_data) = __per_cpu_mca[cpu] = __pa(data);
/*
* Stash away a copy of the PTE needed to map the per-CPU page.
projects / linux-2.6-omap-h63xx.git / blobdiff