linux 2.6.16.38 w/ vs2.0.3-rc1
[linux-2.6.git] / drivers / edac / i82860_edac.c
index fd34216..52596e7 100644 (file)
@@ -9,6 +9,7 @@
  * by Thayne Harbaugh of Linux Networx. (http://lnxi.com)
  */
 
+
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include "edac_mc.h"
 
-#define i82860_printk(level, fmt, arg...) \
-       edac_printk(level, "i82860", fmt, ##arg)
-
-#define i82860_mc_printk(mci, level, fmt, arg...) \
-       edac_mc_chipset_printk(mci, level, "i82860", fmt, ##arg)
 
 #ifndef PCI_DEVICE_ID_INTEL_82860_0
 #define PCI_DEVICE_ID_INTEL_82860_0    0x2531
@@ -52,15 +48,15 @@ struct i82860_error_info {
 
 static const struct i82860_dev_info i82860_devs[] = {
        [I82860] = {
-               .ctl_name = "i82860"
-       },
+                   .ctl_name = "i82860"},
 };
 
 static struct pci_dev *mci_pdev = NULL;        /* init dev: in case that AGP code
-                                        * has already registered driver
-                                        */
+                                          has already registered driver */
 
-static void i82860_get_error_info(struct mem_ctl_info *mci,
+static int i82860_registered = 1;
+
+static void i82860_get_error_info (struct mem_ctl_info *mci,
                struct i82860_error_info *info)
 {
        /*
@@ -82,15 +78,14 @@ static void i82860_get_error_info(struct mem_ctl_info *mci,
         */
        if (!(info->errsts2 & 0x0003))
                return;
-
        if ((info->errsts ^ info->errsts2) & 0x0003) {
                pci_read_config_dword(mci->pdev, I82860_EAP, &info->eap);
                pci_read_config_word(mci->pdev, I82860_DERRCTL_STS,
-                               &info->derrsyn);
+                   &info->derrsyn);
        }
 }
 
-static int i82860_process_error_info(struct mem_ctl_info *mci,
+static int i82860_process_error_info (struct mem_ctl_info *mci,
                struct i82860_error_info *info, int handle_errors)
 {
        int row;
@@ -112,8 +107,8 @@ static int i82860_process_error_info(struct mem_ctl_info *mci,
        if (info->errsts & 0x0002)
                edac_mc_handle_ue(mci, info->eap, 0, row, "i82860 UE");
        else
-               edac_mc_handle_ce(mci, info->eap, 0, info->derrsyn, row, 0,
-                               "i82860 UE");
+               edac_mc_handle_ce(mci, info->eap, 0, info->derrsyn, row,
+                                      0, "i82860 UE");
 
        return 1;
 }
@@ -122,7 +117,7 @@ static void i82860_check(struct mem_ctl_info *mci)
 {
        struct i82860_error_info info;
 
-       debugf1("MC%d: %s()\n", mci->mc_idx, __func__);
+       debugf1("MC%d: " __FILE__ ": %s()\n", mci->mc_idx, __func__);
        i82860_get_error_info(mci, &info);
        i82860_process_error_info(mci, &info, 1);
 }
@@ -133,7 +128,6 @@ static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
        int index;
        struct mem_ctl_info *mci = NULL;
        unsigned long last_cumul_size;
-       struct i82860_error_info discard;
 
        u16 mchcfg_ddim;        /* DRAM Data Integrity Mode 0=none,2=edac */
 
@@ -146,20 +140,21 @@ static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
           going to make 1 channel for group.
         */
        mci = edac_mc_alloc(0, 16, 1);
-
        if (!mci)
                return -ENOMEM;
 
-       debugf3("%s(): init mci\n", __func__);
+       debugf3("MC: " __FILE__ ": %s(): init mci\n", __func__);
+
        mci->pdev = pdev;
        mci->mtype_cap = MEM_FLAG_DDR;
 
+
        mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED;
        /* I"m not sure about this but I think that all RDRAM is SECDED */
        mci->edac_cap = EDAC_FLAG_SECDED;
        /* adjust FLAGS */
 
-       mci->mod_name = EDAC_MOD_STR;
+       mci->mod_name = BS_MOD_STR;
        mci->mod_ver = "$Revision: 1.1.2.6 $";
        mci->ctl_name = i82860_devs[dev_idx].ctl_name;
        mci->edac_check = i82860_check;
@@ -180,13 +175,12 @@ static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
                struct csrow_info *csrow = &mci->csrows[index];
 
                pci_read_config_word(mci->pdev, I82860_GBA + index * 2,
-                               &value);
+                                    &value);
 
                cumul_size = (value & I82860_GBA_MASK) <<
                    (I82860_GBA_SHIFT - PAGE_SHIFT);
-               debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index,
-                       cumul_size);
-
+               debugf3("MC: " __FILE__ ": %s(): (%d) cumul_size 0x%x\n",
+                       __func__, index, cumul_size);
                if (cumul_size == last_cumul_size)
                        continue;       /* not populated */
 
@@ -194,43 +188,42 @@ static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
                csrow->last_page = cumul_size - 1;
                csrow->nr_pages = cumul_size - last_cumul_size;
                last_cumul_size = cumul_size;
-               csrow->grain = 1 << 12;  /* I82860_EAP has 4KiB reolution */
+               csrow->grain = 1 << 12; /* I82860_EAP has 4KiB reolution */
                csrow->mtype = MEM_RMBS;
                csrow->dtype = DEV_UNKNOWN;
                csrow->edac_mode = mchcfg_ddim ? EDAC_SECDED : EDAC_NONE;
        }
 
-       i82860_get_error_info(mci, &discard);  /* clear counters */
+       /* clear counters */
+       pci_write_bits16(mci->pdev, I82860_ERRSTS, 0x0003, 0x0003);
 
        if (edac_mc_add_mc(mci)) {
-               debugf3("%s(): failed edac_mc_add_mc()\n", __func__);
+               debugf3("MC: " __FILE__
+                       ": %s(): failed edac_mc_add_mc()\n",
+                       __func__);
                edac_mc_free(mci);
        } else {
                /* get this far and it's successful */
-               debugf3("%s(): success\n", __func__);
+               debugf3("MC: " __FILE__ ": %s(): success\n", __func__);
                rc = 0;
        }
-
        return rc;
 }
 
 /* returns count (>= 0), or negative on error */
 static int __devinit i82860_init_one(struct pci_dev *pdev,
-               const struct pci_device_id *ent)
+                                    const struct pci_device_id *ent)
 {
        int rc;
 
-       debugf0("%s()\n", __func__);
-       i82860_printk(KERN_INFO, "i82860 init one\n");
+       debugf0("MC: " __FILE__ ": %s()\n", __func__);
 
-       if (pci_enable_device(pdev) < 0)
+       printk(KERN_INFO "i82860 init one\n");
+       if(pci_enable_device(pdev) < 0)
                return -EIO;
-
        rc = i82860_probe1(pdev, ent->driver_data);
-
-       if (rc == 0)
+       if(rc == 0)
                mci_pdev = pci_dev_get(pdev);
-
        return rc;
 }
 
@@ -238,28 +231,23 @@ static void __devexit i82860_remove_one(struct pci_dev *pdev)
 {
        struct mem_ctl_info *mci;
 
-       debugf0("%s()\n", __func__);
-
-       if ((mci = edac_mc_del_mc(pdev)) == NULL)
-               return;
+       debugf0(__FILE__ ": %s()\n", __func__);
 
-       edac_mc_free(mci);
+       mci = edac_mc_find_mci_by_pdev(pdev);
+       if ((mci != NULL) && (edac_mc_del_mc(mci) == 0))
+               edac_mc_free(mci);
 }
 
 static const struct pci_device_id i82860_pci_tbl[] __devinitdata = {
-       {
-               PCI_VEND_DEV(INTEL, 82860_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
-               I82860
-       },
-       {
-               0,
-       }       /* 0 terminated list. */
+       {PCI_VEND_DEV(INTEL, 82860_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+        I82860},
+       {0,}                    /* 0 terminated list. */
 };
 
 MODULE_DEVICE_TABLE(pci, i82860_pci_tbl);
 
 static struct pci_driver i82860_driver = {
-       .name = EDAC_MOD_STR,
+       .name = BS_MOD_STR,
        .probe = i82860_init_one,
        .remove = __devexit_p(i82860_remove_one),
        .id_table = i82860_pci_tbl,
@@ -269,56 +257,43 @@ static int __init i82860_init(void)
 {
        int pci_rc;
 
-       debugf3("%s()\n", __func__);
-
+       debugf3("MC: " __FILE__ ": %s()\n", __func__);
        if ((pci_rc = pci_register_driver(&i82860_driver)) < 0)
-               goto fail0;
+               return pci_rc;
 
        if (!mci_pdev) {
+               i82860_registered = 0;
                mci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
-                                       PCI_DEVICE_ID_INTEL_82860_0, NULL);
-
+                                         PCI_DEVICE_ID_INTEL_82860_0, NULL);
                if (mci_pdev == NULL) {
                        debugf0("860 pci_get_device fail\n");
-                       pci_rc = -ENODEV;
-                       goto fail1;
+                       return -ENODEV;
                }
-
                pci_rc = i82860_init_one(mci_pdev, i82860_pci_tbl);
-
                if (pci_rc < 0) {
                        debugf0("860 init fail\n");
-                       pci_rc = -ENODEV;
-                       goto fail1;
+                       pci_dev_put(mci_pdev);
+                       return -ENODEV;
                }
        }
-
        return 0;
-
-fail1:
-       pci_unregister_driver(&i82860_driver);
-
-fail0:
-       if (mci_pdev != NULL)
-               pci_dev_put(mci_pdev);
-
-       return pci_rc;
 }
 
 static void __exit i82860_exit(void)
 {
-       debugf3("%s()\n", __func__);
+       debugf3("MC: " __FILE__ ": %s()\n", __func__);
 
        pci_unregister_driver(&i82860_driver);
-
-       if (mci_pdev != NULL)
+       if (!i82860_registered) {
+               i82860_remove_one(mci_pdev);
                pci_dev_put(mci_pdev);
+       }
 }
 
 module_init(i82860_init);
 module_exit(i82860_exit);
 
 MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com) "
-       "Ben Woodard <woodard@redhat.com>");
+MODULE_AUTHOR
+    ("Red Hat Inc. (http://www.redhat.com.com) Ben Woodard <woodard@redhat.com>");
 MODULE_DESCRIPTION("ECC support for Intel 82860 memory hub controllers");