4 * (C) 2007 www.softwarebitmaker.com
6 * This file is licensed under the terms of the GNU General Public
7 * License version 2. This program is licensed "as is" without any
8 * warranty of any kind, whether express or implied.
10 * Author: Doug Thompson <dougthompson@xmission.com>
13 #include <linux/edac.h>
15 #include "edac_core.h"
16 #include "edac_module.h"
18 #define EDAC_VERSION "Ver: 3.0.0"
20 #ifdef CONFIG_EDAC_DEBUG
21 /* Values of 0 to 4 will generate output */
22 int edac_debug_level
= 2;
23 EXPORT_SYMBOL_GPL(edac_debug_level
);
26 /* scope is to module level only */
27 struct workqueue_struct
*edac_workqueue
;
30 * edac_op_state_to_string()
32 char *edac_op_state_to_string(int opstate
)
34 if (opstate
== OP_RUNNING_POLL
)
36 else if (opstate
== OP_RUNNING_INTERRUPT
)
38 else if (opstate
== OP_RUNNING_POLL_INTR
)
40 else if (opstate
== OP_ALLOC
)
42 else if (opstate
== OP_OFFLINE
)
49 * edac_workqueue_setup
50 * initialize the edac work queue for polling operations
52 static int edac_workqueue_setup(void)
54 edac_workqueue
= create_singlethread_workqueue("edac-poller");
55 if (edac_workqueue
== NULL
)
62 * edac_workqueue_teardown
63 * teardown the edac workqueue
65 static void edac_workqueue_teardown(void)
68 flush_workqueue(edac_workqueue
);
69 destroy_workqueue(edac_workqueue
);
70 edac_workqueue
= NULL
;
76 * module initialization entry point
78 static int __init
edac_init(void)
82 edac_printk(KERN_INFO
, EDAC_MC
, EDAC_VERSION
"\n");
85 * Harvest and clear any boot/initialization PCI parity errors
87 * FIXME: This only clears errors logged by devices present at time of
88 * module initialization. We should also do an initial clear
89 * of each newly hotplugged device.
91 edac_pci_clear_parity_errors();
93 err
= edac_mc_sysfs_init();
99 /* Setup/Initialize the workq for this core */
100 err
= edac_workqueue_setup();
102 edac_printk(KERN_ERR
, EDAC_MC
, "init WorkQueue failure\n");
114 * module exit/termination function
116 static void __exit
edac_exit(void)
120 /* tear down the various subsystems */
121 edac_workqueue_teardown();
122 edac_mc_sysfs_exit();
127 * Inform the kernel of our entry and exit points
129 module_init(edac_init
);
130 module_exit(edac_exit
);
132 MODULE_LICENSE("GPL");
133 MODULE_AUTHOR("Doug Thompson www.softwarebitmaker.com, et al");
134 MODULE_DESCRIPTION("Core library routines for EDAC reporting");
136 /* refer to *_sysfs.c files for parameters that are exported via sysfs */
138 #ifdef CONFIG_EDAC_DEBUG
139 module_param(edac_debug_level
, int, 0644);
140 MODULE_PARM_DESC(edac_debug_level
, "Debug level");