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edac: create top-level debugfs directory 

Create a single, top-level "edac" directory for debugfs. An "mc[0-N]"
directory is then created for each memory controller. Individual drivers
can create additional entries such as h/w error injection control.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Rob Herring 2012-06-11 21:32:12 -05:00 committed by Mauro Carvalho Chehab
parent c10538396b
commit e7930ba49e
3 changed files with 39 additions and 1 deletions
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23
drivers/edac/edac_mc_sysfs.c
View File

@ -899,13 +899,33 @@ static struct device_type mci_attr_type = {
};
#ifdef CONFIG_EDAC_DEBUG
static struct dentry *edac_debugfs;
int __init edac_debugfs_init(void)
{
edac_debugfs = debugfs_create_dir("edac", NULL);
if (IS_ERR(edac_debugfs)) {
edac_debugfs = NULL;
return -ENOMEM;
}
return 0;
}
void __exit edac_debugfs_exit(void)
{
debugfs_remove(edac_debugfs);
}
int edac_create_debug_nodes(struct mem_ctl_info *mci)
{
struct dentry *d, *parent;
char name[80];
int i;
d = debugfs_create_dir(mci->dev.kobj.name, mci->debugfs);
if (!edac_debugfs)
return -ENODEV;
d = debugfs_create_dir(mci->dev.kobj.name, edac_debugfs);
if (!d)
return -ENOMEM;
parent = d;
@ -930,6 +950,7 @@ int edac_create_debug_nodes(struct mem_ctl_info *mci)
if (!d)
goto nomem;
mci->debugfs = parent;
return 0;
nomem:
debugfs_remove(mci->debugfs);

3
drivers/edac/edac_module.c
View File

@ -94,6 +94,8 @@ static int __init edac_init(void)
if (err)
goto error;
edac_debugfs_init();
/* Setup/Initialize the workq for this core */
err = edac_workqueue_setup();
if (err) {
@ -118,6 +120,7 @@ static void __exit edac_exit(void)
/* tear down the various subsystems */
edac_workqueue_teardown();
edac_mc_sysfs_exit();
edac_debugfs_exit();
}
/*

14
drivers/edac/edac_module.h
View File

@ -56,6 +56,20 @@ extern void edac_mc_reset_delay_period(int value);
extern void *edac_align_ptr(void **p, unsigned size, int n_elems);
/*
* EDAC debugfs functions
*/
#ifdef CONFIG_EDAC_DEBUG
int edac_debugfs_init(void);
void edac_debugfs_exit(void);
#else
static inline int edac_debugfs_init(void)
{
return -ENODEV;
}
static inline void edac_debugfs_exit(void) {}
#endif
/*
* EDAC PCI functions
*/