diff options
| -rw-r--r-- | drivers/edac/i5100_edac.c | 71 |
1 files changed, 70 insertions, 1 deletions
diff --git a/drivers/edac/i5100_edac.c b/drivers/edac/i5100_edac.c index 0a0345b..ad4cc89 100644 --- a/drivers/edac/i5100_edac.c +++ b/drivers/edac/i5100_edac.c @@ -27,6 +27,7 @@ #include <linux/edac.h> #include <linux/delay.h> #include <linux/mmzone.h> +#include <linux/debugfs.h> #include "edac_core.h" @@ -360,8 +361,12 @@ struct i5100_priv { u8 inject_deviceptr2; u16 inject_eccmask1; u16 inject_eccmask2; + + struct dentry *debugfs; }; +static struct dentry *i5100_debugfs; + /* map a rank/chan to a slot number on the mainboard */ static int i5100_rank_to_slot(const struct mem_ctl_info *mci, int chan, int rank) @@ -944,6 +949,61 @@ static void i5100_do_inject(struct mem_ctl_info *mci) pci_write_config_byte(priv->einj, I5100_DINJ0, 0xab); } +#define to_mci(k) container_of(k, struct mem_ctl_info, dev) +static ssize_t inject_enable_write(struct file *file, const char __user *data, + size_t count, loff_t *ppos) +{ + struct device *dev = file->private_data; + struct mem_ctl_info *mci = to_mci(dev); + + i5100_do_inject(mci); + + return count; +} + +static int inject_enable_open(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +static const struct file_operations i5100_inject_enable_fops = { + .open = inject_enable_open, + .write = inject_enable_write, + .llseek = generic_file_llseek, +}; + +static int i5100_setup_debugfs(struct mem_ctl_info *mci) +{ + struct i5100_priv *priv = mci->pvt_info; + + if (!i5100_debugfs) + return -ENODEV; + + priv->debugfs = debugfs_create_dir(mci->bus.name, i5100_debugfs); + + if (!priv->debugfs) + return -ENOMEM; + + debugfs_create_x8("inject_channel", S_IRUGO | S_IWUSR, priv->debugfs, + &priv->inject_channel); + debugfs_create_x8("inject_hlinesel", S_IRUGO | S_IWUSR, priv->debugfs, + &priv->inject_hlinesel); + debugfs_create_x8("inject_deviceptr1", S_IRUGO | S_IWUSR, priv->debugfs, + &priv->inject_deviceptr1); + debugfs_create_x8("inject_deviceptr2", S_IRUGO | S_IWUSR, priv->debugfs, + &priv->inject_deviceptr2); + debugfs_create_x16("inject_eccmask1", S_IRUGO | S_IWUSR, priv->debugfs, + &priv->inject_eccmask1); + debugfs_create_x16("inject_eccmask2", S_IRUGO | S_IWUSR, priv->debugfs, + &priv->inject_eccmask2); + debugfs_create_file("inject_enable", S_IWUSR, priv->debugfs, + &mci->dev, &i5100_inject_enable_fops); + + return 0; + +} + static int i5100_init_one(struct pci_dev *pdev, const struct pci_device_id *id) { int rc; @@ -1097,6 +1157,8 @@ static int i5100_init_one(struct pci_dev *pdev, const struct pci_device_id *id) goto bail_scrub; } + i5100_setup_debugfs(mci); + return ret; bail_scrub: @@ -1141,6 +1203,9 @@ static void i5100_remove_one(struct pci_dev *pdev) priv = mci->pvt_info; + if (priv->debugfs) + debugfs_remove_recursive(priv->debugfs); + priv->scrub_enable = 0; cancel_delayed_work_sync(&(priv->i5100_scrubbing)); @@ -1173,13 +1238,17 @@ static int __init i5100_init(void) { int pci_rc; - pci_rc = pci_register_driver(&i5100_driver); + i5100_debugfs = debugfs_create_dir("i5100_edac", NULL); + pci_rc = pci_register_driver(&i5100_driver); return (pci_rc < 0) ? pci_rc : 0; } static void __exit i5100_exit(void) { + if (i5100_debugfs) + debugfs_remove(i5100_debugfs); + pci_unregister_driver(&i5100_driver); } |
