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EDAC: Carve out debugfs functionality
... into a separate compilation unit and drop a couple of CONFIG_EDAC_DEBUG ifdefferies. Rename edac_create_debug_nodes() to edac_create_debugfs_nodes(), while at it. No functionality change. Cc: <linux-edac@vger.kernel.org> Signed-off-by: Borislav Petkov <bp@suse.de>
This commit is contained in:
Borislav Petkov
parent
1f93e4a96c
commit
7ac8bf9bc9
@ -12,6 +12,8 @@ obj-$(CONFIG_EDAC_MM_EDAC) += edac_core.o
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edac_core-y := edac_mc.o edac_device.o edac_mc_sysfs.o
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edac_core-y += edac_module.o edac_device_sysfs.o
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edac_core-$(CONFIG_EDAC_DEBUG) += debugfs.o
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ifdef CONFIG_PCI
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edac_core-y += edac_pci.o edac_pci_sysfs.o
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endif
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103
drivers/edac/debugfs.c
Normal file
103
drivers/edac/debugfs.c
Normal file
@ -0,0 +1,103 @@
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#include "edac_module.h"
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static struct dentry *edac_debugfs;
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static ssize_t edac_fake_inject_write(struct file *file,
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const char __user *data,
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size_t count, loff_t *ppos)
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{
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struct device *dev = file->private_data;
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struct mem_ctl_info *mci = to_mci(dev);
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static enum hw_event_mc_err_type type;
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u16 errcount = mci->fake_inject_count;
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if (!errcount)
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errcount = 1;
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type = mci->fake_inject_ue ? HW_EVENT_ERR_UNCORRECTED
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: HW_EVENT_ERR_CORRECTED;
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printk(KERN_DEBUG
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"Generating %d %s fake error%s to %d.%d.%d to test core handling. NOTE: this won't test the driver-specific decoding logic.\n",
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errcount,
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(type == HW_EVENT_ERR_UNCORRECTED) ? "UE" : "CE",
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errcount > 1 ? "s" : "",
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mci->fake_inject_layer[0],
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mci->fake_inject_layer[1],
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mci->fake_inject_layer[2]
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);
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edac_mc_handle_error(type, mci, errcount, 0, 0, 0,
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mci->fake_inject_layer[0],
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mci->fake_inject_layer[1],
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mci->fake_inject_layer[2],
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"FAKE ERROR", "for EDAC testing only");
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return count;
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}
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static const struct file_operations debug_fake_inject_fops = {
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.open = simple_open,
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.write = edac_fake_inject_write,
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.llseek = generic_file_llseek,
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};
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int __init edac_debugfs_init(void)
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{
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edac_debugfs = debugfs_create_dir("edac", NULL);
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if (IS_ERR(edac_debugfs)) {
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edac_debugfs = NULL;
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return -ENOMEM;
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}
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return 0;
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}
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void edac_debugfs_exit(void)
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{
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debugfs_remove(edac_debugfs);
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}
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int edac_create_debugfs_nodes(struct mem_ctl_info *mci)
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{
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struct dentry *d, *parent;
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char name[80];
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int i;
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if (!edac_debugfs)
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return -ENODEV;
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d = debugfs_create_dir(mci->dev.kobj.name, edac_debugfs);
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if (!d)
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return -ENOMEM;
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parent = d;
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for (i = 0; i < mci->n_layers; i++) {
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sprintf(name, "fake_inject_%s",
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edac_layer_name[mci->layers[i].type]);
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d = debugfs_create_u8(name, S_IRUGO | S_IWUSR, parent,
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&mci->fake_inject_layer[i]);
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if (!d)
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goto nomem;
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}
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d = debugfs_create_bool("fake_inject_ue", S_IRUGO | S_IWUSR, parent,
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&mci->fake_inject_ue);
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if (!d)
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goto nomem;
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d = debugfs_create_u16("fake_inject_count", S_IRUGO | S_IWUSR, parent,
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&mci->fake_inject_count);
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if (!d)
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goto nomem;
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d = debugfs_create_file("fake_inject", S_IWUSR, parent,
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&mci->dev,
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&debug_fake_inject_fops);
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if (!d)
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goto nomem;
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mci->debugfs = parent;
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return 0;
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nomem:
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debugfs_remove(mci->debugfs);
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return -ENOMEM;
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}
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@ -94,6 +94,8 @@ do { \
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#define edac_dev_name(dev) (dev)->dev_name
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#define to_mci(k) container_of(k, struct mem_ctl_info, dev)
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/*
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* The following are the structures to provide for a generic
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* or abstract 'edac_device'. This set of structures and the
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@ -785,47 +785,6 @@ static ssize_t mci_max_location_show(struct device *dev,
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return p - data;
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}
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#ifdef CONFIG_EDAC_DEBUG
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static ssize_t edac_fake_inject_write(struct file *file,
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const char __user *data,
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size_t count, loff_t *ppos)
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{
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struct device *dev = file->private_data;
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struct mem_ctl_info *mci = to_mci(dev);
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static enum hw_event_mc_err_type type;
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u16 errcount = mci->fake_inject_count;
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if (!errcount)
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errcount = 1;
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type = mci->fake_inject_ue ? HW_EVENT_ERR_UNCORRECTED
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: HW_EVENT_ERR_CORRECTED;
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printk(KERN_DEBUG
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"Generating %d %s fake error%s to %d.%d.%d to test core handling. NOTE: this won't test the driver-specific decoding logic.\n",
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errcount,
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(type == HW_EVENT_ERR_UNCORRECTED) ? "UE" : "CE",
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errcount > 1 ? "s" : "",
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mci->fake_inject_layer[0],
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mci->fake_inject_layer[1],
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mci->fake_inject_layer[2]
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);
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edac_mc_handle_error(type, mci, errcount, 0, 0, 0,
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mci->fake_inject_layer[0],
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mci->fake_inject_layer[1],
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mci->fake_inject_layer[2],
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"FAKE ERROR", "for EDAC testing only");
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return count;
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}
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static const struct file_operations debug_fake_inject_fops = {
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.open = simple_open,
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.write = edac_fake_inject_write,
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.llseek = generic_file_llseek,
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};
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#endif
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/* default Control file */
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static DEVICE_ATTR(reset_counters, S_IWUSR, NULL, mci_reset_counters_store);
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@ -896,71 +855,6 @@ static struct device_type mci_attr_type = {
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.release = mci_attr_release,
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};
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#ifdef CONFIG_EDAC_DEBUG
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static struct dentry *edac_debugfs;
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int __init edac_debugfs_init(void)
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{
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edac_debugfs = debugfs_create_dir("edac", NULL);
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if (IS_ERR(edac_debugfs)) {
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edac_debugfs = NULL;
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return -ENOMEM;
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}
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return 0;
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}
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void edac_debugfs_exit(void)
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{
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debugfs_remove(edac_debugfs);
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}
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static int edac_create_debug_nodes(struct mem_ctl_info *mci)
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{
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struct dentry *d, *parent;
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char name[80];
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int i;
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if (!edac_debugfs)
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return -ENODEV;
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d = debugfs_create_dir(mci->dev.kobj.name, edac_debugfs);
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if (!d)
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return -ENOMEM;
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parent = d;
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for (i = 0; i < mci->n_layers; i++) {
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sprintf(name, "fake_inject_%s",
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edac_layer_name[mci->layers[i].type]);
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d = debugfs_create_u8(name, S_IRUGO | S_IWUSR, parent,
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&mci->fake_inject_layer[i]);
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if (!d)
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goto nomem;
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}
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d = debugfs_create_bool("fake_inject_ue", S_IRUGO | S_IWUSR, parent,
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&mci->fake_inject_ue);
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if (!d)
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goto nomem;
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d = debugfs_create_u16("fake_inject_count", S_IRUGO | S_IWUSR, parent,
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&mci->fake_inject_count);
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if (!d)
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goto nomem;
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d = debugfs_create_file("fake_inject", S_IWUSR, parent,
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&mci->dev,
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&debug_fake_inject_fops);
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if (!d)
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goto nomem;
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mci->debugfs = parent;
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return 0;
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nomem:
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debugfs_remove(mci->debugfs);
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return -ENOMEM;
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}
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#endif
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/*
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* Create a new Memory Controller kobject instance,
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* mc<id> under the 'mc' directory
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@ -1039,9 +933,7 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci,
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goto fail_unregister_dimm;
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#endif
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#ifdef CONFIG_EDAC_DEBUG
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edac_create_debug_nodes(mci);
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#endif
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edac_create_debugfs_nodes(mci);
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return 0;
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fail_unregister_dimm:
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@ -63,12 +63,14 @@ extern void *edac_align_ptr(void **p, unsigned size, int n_elems);
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#ifdef CONFIG_EDAC_DEBUG
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int edac_debugfs_init(void);
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void edac_debugfs_exit(void);
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int edac_create_debugfs_nodes(struct mem_ctl_info *mci);
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#else
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static inline int edac_debugfs_init(void)
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{
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return -ENODEV;
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}
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static inline void edac_debugfs_exit(void) {}
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static inline int edac_create_debugfs_nodes(struct mem_ctl_info *mci) { return 0; }
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#endif
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/*
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@ -769,12 +769,10 @@ struct mem_ctl_info {
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/* the internal state of this controller instance */
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int op_state;
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#ifdef CONFIG_EDAC_DEBUG
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struct dentry *debugfs;
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u8 fake_inject_layer[EDAC_MAX_LAYERS];
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u32 fake_inject_ue;
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u16 fake_inject_count;
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#endif
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};
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/*
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