-
-#include <linux/freezer.h>
-#include <linux/kthread.h>
+/*
+ * edac_module.c
+ *
+ * (C) 2007 www.softwarebitmaker.com
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ *
+ * Author: Doug Thompson <dougthompson@xmission.com>
+ *
+ */
#include <linux/edac.h>
#include "edac_core.h"
#include "edac_module.h"
-#define EDAC_MC_VERSION "Ver: 2.0.4 " __DATE__
+#define EDAC_VERSION "Ver: 2.1.0 " __DATE__
#ifdef CONFIG_EDAC_DEBUG
/* Values of 0 to 4 will generate output */
-int edac_debug_level = 1;
+int edac_debug_level = 2;
EXPORT_SYMBOL_GPL(edac_debug_level);
#endif
/* scope is to module level only */
struct workqueue_struct *edac_workqueue;
-/* private to this file */
-static struct task_struct *edac_thread;
-
-
-/*
- * sysfs object: /sys/devices/system/edac
- * need to export to other files in this modules
- */
-static struct sysdev_class edac_class = {
- set_kset_name("edac"),
-};
-static int edac_class_valid = 0;
-
/*
- * edac_get_edac_class()
- *
- * return pointer to the edac class of 'edac'
+ * edac_op_state_to_string()
*/
-struct sysdev_class *edac_get_edac_class(void)
+char *edac_op_state_to_string(int opstate)
{
- struct sysdev_class *classptr=NULL;
-
- if (edac_class_valid)
- classptr = &edac_class;
-
- return classptr;
-}
-
-/*
- * edac_register_sysfs_edac_name()
- *
- * register the 'edac' into /sys/devices/system
- *
- * return:
- * 0 success
- * !0 error
- */
-static int edac_register_sysfs_edac_name(void)
-{
- int err;
-
- /* create the /sys/devices/system/edac directory */
- err = sysdev_class_register(&edac_class);
-
- if (err) {
- debugf1("%s() error=%d\n", __func__, err);
- return err;
- }
-
- edac_class_valid = 1;
- return 0;
-}
-
-/*
- * sysdev_class_unregister()
- *
- * unregister the 'edac' from /sys/devices/system
- */
-static void edac_unregister_sysfs_edac_name(void)
-{
- /* only if currently registered, then unregister it */
- if (edac_class_valid)
- sysdev_class_unregister(&edac_class);
-
- edac_class_valid = 0;
-}
-
-
-/*
- * Check MC status every edac_get_poll_msec().
- * Check PCI status every edac_get_poll_msec() as well.
- *
- * This where the work gets done for edac.
- *
- * SMP safe, doesn't use NMI, and auto-rate-limits.
- */
-static void do_edac_check(void)
-{
- debugf3("%s()\n", __func__);
-
- /* perform the poll activities */
- edac_check_mc_devices();
- edac_pci_do_parity_check();
-}
-
-/*
- * handler for EDAC to check if NMI type handler has asserted interrupt
- */
-static int edac_assert_error_check_and_clear(void)
-{
- int vreg;
-
- if(edac_op_state == EDAC_OPSTATE_POLL)
- return 1;
-
- vreg = atomic_read(&edac_err_assert);
- if(vreg) {
- atomic_set(&edac_err_assert, 0);
- return 1;
- }
-
- return 0;
-}
-
-/*
- * Action thread for EDAC to perform the POLL operations
- */
-static int edac_kernel_thread(void *arg)
-{
- int msec;
-
- while (!kthread_should_stop()) {
- if(edac_assert_error_check_and_clear())
- do_edac_check();
-
- /* goto sleep for the interval */
- msec = (HZ * edac_get_poll_msec()) / 1000;
- schedule_timeout_interruptible(msec);
- try_to_freeze();
- }
-
- return 0;
+ if (opstate == OP_RUNNING_POLL)
+ return "POLLED";
+ else if (opstate == OP_RUNNING_INTERRUPT)
+ return "INTERRUPT";
+ else if (opstate == OP_RUNNING_POLL_INTR)
+ return "POLL-INTR";
+ else if (opstate == OP_ALLOC)
+ return "ALLOC";
+ else if (opstate == OP_OFFLINE)
+ return "OFFLINE";
+
+ return "UNKNOWN";
}
/*
}
}
-
/*
* edac_init
* module initialization entry point
{
int err = 0;
- edac_printk(KERN_INFO, EDAC_MC, EDAC_MC_VERSION "\n");
+ edac_printk(KERN_INFO, EDAC_MC, EDAC_VERSION "\n");
/*
* Harvest and clear any boot/initialization PCI parity errors
*
* FIXME: This only clears errors logged by devices present at time of
- * module initialization. We should also do an initial clear
- * of each newly hotplugged device.
+ * module initialization. We should also do an initial clear
+ * of each newly hotplugged device.
*/
edac_pci_clear_parity_errors();
/*
- * perform the registration of the /sys/devices/system/edac object
+ * now set up the mc_kset under the edac class object
*/
- if (edac_register_sysfs_edac_name()) {
- edac_printk(KERN_ERR, EDAC_MC,
- "Error initializing 'edac' kobject\n");
- err = -ENODEV;
+ err = edac_sysfs_setup_mc_kset();
+ if (err)
goto error;
- }
- /* Create the MC sysfs entries, must be first
- */
- if (edac_sysfs_memctrl_setup()) {
- edac_printk(KERN_ERR, EDAC_MC,
- "Error initializing sysfs code\n");
- err = -ENODEV;
- goto error_sysfs;
- }
-
- /* Create the PCI parity sysfs entries */
- if (edac_sysfs_pci_setup()) {
- edac_printk(KERN_ERR, EDAC_MC,
- "PCI: Error initializing sysfs code\n");
- err = -ENODEV;
- goto error_mem;
- }
-
- /* Setup/Initialize the edac_device system */
+ /* Setup/Initialize the workq for this core */
err = edac_workqueue_setup();
if (err) {
edac_printk(KERN_ERR, EDAC_MC, "init WorkQueue failure\n");
- goto error_pci;
- }
-
- /* create our kernel thread */
- edac_thread = kthread_run(edac_kernel_thread, NULL, "kedac");
-
- if (IS_ERR(edac_thread)) {
- err = PTR_ERR(edac_thread);
- goto error_work;
+ goto workq_fail;
}
return 0;
/* Error teardown stack */
-error_work:
- edac_workqueue_teardown();
-error_pci:
- edac_sysfs_pci_teardown();
-error_mem:
- edac_sysfs_memctrl_teardown();
-error_sysfs:
- edac_unregister_sysfs_edac_name();
+workq_fail:
+ edac_sysfs_teardown_mc_kset();
+
error:
return err;
}
static void __exit edac_exit(void)
{
debugf0("%s()\n", __func__);
- kthread_stop(edac_thread);
- /* tear down the various subsystems*/
+ /* tear down the various subsystems */
edac_workqueue_teardown();
- edac_sysfs_memctrl_teardown();
- edac_sysfs_pci_teardown();
- edac_unregister_sysfs_edac_name();
+ edac_sysfs_teardown_mc_kset();
}
/*
module_param(edac_debug_level, int, 0644);
MODULE_PARM_DESC(edac_debug_level, "Debug level");
#endif
-
git.openpandora.org / pandora-kernel.git / blobdiff