Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
[pandora-kernel.git] / drivers / edac / e7xxx_edac.c
index 5a5ecd5..96ecc49 100644 (file)
 #include <linux/pci.h>
 #include <linux/pci_ids.h>
 #include <linux/slab.h>
-#include "edac_mc.h"
+#include <linux/edac.h>
+#include "edac_core.h"
 
-#define        E7XXX_REVISION " Ver: 2.0.0 " __DATE__
+#define        E7XXX_REVISION " Ver: 2.0.2 " __DATE__
+#define        EDAC_MOD_STR    "e7xxx_edac"
 
 #define e7xxx_printk(level, fmt, arg...) \
        edac_printk(level, "e7xxx", fmt, ##arg)
@@ -142,23 +144,21 @@ struct e7xxx_error_info {
        u32 dram_uelog_add;
 };
 
+static struct edac_pci_ctl_info *e7xxx_pci;
+
 static const struct e7xxx_dev_info e7xxx_devs[] = {
        [E7500] = {
                .err_dev = PCI_DEVICE_ID_INTEL_7500_1_ERR,
-               .ctl_name = "E7500"
-       },
+               .ctl_name = "E7500"},
        [E7501] = {
                .err_dev = PCI_DEVICE_ID_INTEL_7501_1_ERR,
-               .ctl_name = "E7501"
-       },
+               .ctl_name = "E7501"},
        [E7505] = {
                .err_dev = PCI_DEVICE_ID_INTEL_7505_1_ERR,
-               .ctl_name = "E7505"
-       },
+               .ctl_name = "E7505"},
        [E7205] = {
                .err_dev = PCI_DEVICE_ID_INTEL_7205_1_ERR,
-               .ctl_name = "E7205"
-       },
+               .ctl_name = "E7205"},
 };
 
 /* FIXME - is this valid for both SECDED and S4ECD4ED? */
@@ -179,15 +179,15 @@ static inline int e7xxx_find_channel(u16 syndrome)
 }
 
 static unsigned long ctl_page_to_phys(struct mem_ctl_info *mci,
-               unsigned long page)
+                               unsigned long page)
 {
        u32 remap;
-       struct e7xxx_pvt *pvt = (struct e7xxx_pvt *) mci->pvt_info;
+       struct e7xxx_pvt *pvt = (struct e7xxx_pvt *)mci->pvt_info;
 
        debugf3("%s()\n", __func__);
 
        if ((page < pvt->tolm) ||
-                       ((page >= 0x100000) && (page < pvt->remapbase)))
+               ((page >= 0x100000) && (page < pvt->remapbase)))
                return page;
 
        remap = (page - pvt->tolm) + pvt->remapbase;
@@ -199,8 +199,7 @@ static unsigned long ctl_page_to_phys(struct mem_ctl_info *mci,
        return pvt->tolm - 1;
 }
 
-static void process_ce(struct mem_ctl_info *mci,
-               struct e7xxx_error_info *info)
+static void process_ce(struct mem_ctl_info *mci, struct e7xxx_error_info *info)
 {
        u32 error_1b, page;
        u16 syndrome;
@@ -211,7 +210,7 @@ static void process_ce(struct mem_ctl_info *mci,
        /* read the error address */
        error_1b = info->dram_celog_add;
        /* FIXME - should use PAGE_SHIFT */
-       page = error_1b >> 6;  /* convert the address to 4k page */
+       page = error_1b >> 6;   /* convert the address to 4k page */
        /* read the syndrome */
        syndrome = info->dram_celog_syndrome;
        /* FIXME - check for -1 */
@@ -227,8 +226,7 @@ static void process_ce_no_info(struct mem_ctl_info *mci)
        edac_mc_handle_ce_no_info(mci, "e7xxx CE log register overflow");
 }
 
-static void process_ue(struct mem_ctl_info *mci,
-               struct e7xxx_error_info *info)
+static void process_ue(struct mem_ctl_info *mci, struct e7xxx_error_info *info)
 {
        u32 error_2b, block_page;
        int row;
@@ -237,7 +235,7 @@ static void process_ue(struct mem_ctl_info *mci,
        /* read the error address */
        error_2b = info->dram_uelog_add;
        /* FIXME - should use PAGE_SHIFT */
-       block_page = error_2b >> 6;  /* convert to 4k address */
+       block_page = error_2b >> 6;     /* convert to 4k address */
        row = edac_mc_find_csrow_by_page(mci, block_page);
        edac_mc_handle_ue(mci, block_page, 0, row, "e7xxx UE");
 }
@@ -248,16 +246,14 @@ static void process_ue_no_info(struct mem_ctl_info *mci)
        edac_mc_handle_ue_no_info(mci, "e7xxx UE log register overflow");
 }
 
-static void e7xxx_get_error_info (struct mem_ctl_info *mci,
-               struct e7xxx_error_info *info)
+static void e7xxx_get_error_info(struct mem_ctl_info *mci,
+                                struct e7xxx_error_info *info)
 {
        struct e7xxx_pvt *pvt;
 
-       pvt = (struct e7xxx_pvt *) mci->pvt_info;
-       pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_FERR,
-                       &info->dram_ferr);
-       pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_NERR,
-                       &info->dram_nerr);
+       pvt = (struct e7xxx_pvt *)mci->pvt_info;
+       pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_FERR, &info->dram_ferr);
+       pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_NERR, &info->dram_nerr);
 
        if ((info->dram_ferr & 1) || (info->dram_nerr & 1)) {
                pci_read_config_dword(pvt->bridge_ck, E7XXX_DRAM_CELOG_ADD,
@@ -278,8 +274,9 @@ static void e7xxx_get_error_info (struct mem_ctl_info *mci,
                pci_write_bits8(pvt->bridge_ck, E7XXX_DRAM_NERR, 0x03, 0x03);
 }
 
-static int e7xxx_process_error_info (struct mem_ctl_info *mci,
-               struct e7xxx_error_info *info, int handle_errors)
+static int e7xxx_process_error_info(struct mem_ctl_info *mci,
+                               struct e7xxx_error_info *info,
+                               int handle_errors)
 {
        int error_found;
 
@@ -340,7 +337,6 @@ static inline int dual_channel_active(u32 drc, int dev_idx)
        return (dev_idx == E7501) ? ((drc >> 22) & 0x1) : 1;
 }
 
-
 /* Return DRB granularity (0=32mb, 1=64mb). */
 static inline int drb_granularity(u32 drc, int dev_idx)
 {
@@ -348,9 +344,8 @@ static inline int drb_granularity(u32 drc, int dev_idx)
        return (dev_idx == E7501) ? ((drc >> 18) & 0x3) : 1;
 }
 
-
 static void e7xxx_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
-               int dev_idx, u32 drc)
+                       int dev_idx, u32 drc)
 {
        unsigned long last_cumul_size;
        int index;
@@ -418,10 +413,21 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
        struct e7xxx_error_info discard;
 
        debugf0("%s(): mci\n", __func__);
+
+       /* make sure error reporting method is sane */
+       switch (edac_op_state) {
+       case EDAC_OPSTATE_POLL:
+       case EDAC_OPSTATE_NMI:
+               break;
+       default:
+               edac_op_state = EDAC_OPSTATE_POLL;
+               break;
+       }
+
        pci_read_config_dword(pdev, E7XXX_DRC, &drc);
 
        drc_chan = dual_channel_active(drc, dev_idx);
-       mci = edac_mc_alloc(sizeof(*pvt), E7XXX_NR_CSROWS, drc_chan + 1);
+       mci = edac_mc_alloc(sizeof(*pvt), E7XXX_NR_CSROWS, drc_chan + 1, 0);
 
        if (mci == NULL)
                return -ENOMEM;
@@ -429,17 +435,16 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
        debugf3("%s(): init mci\n", __func__);
        mci->mtype_cap = MEM_FLAG_RDDR;
        mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED |
-                       EDAC_FLAG_S4ECD4ED;
+               EDAC_FLAG_S4ECD4ED;
        /* FIXME - what if different memory types are in different csrows? */
        mci->mod_name = EDAC_MOD_STR;
        mci->mod_ver = E7XXX_REVISION;
        mci->dev = &pdev->dev;
        debugf3("%s(): init pvt\n", __func__);
-       pvt = (struct e7xxx_pvt *) mci->pvt_info;
+       pvt = (struct e7xxx_pvt *)mci->pvt_info;
        pvt->dev_info = &e7xxx_devs[dev_idx];
        pvt->bridge_ck = pci_get_device(PCI_VENDOR_ID_INTEL,
-                                       pvt->dev_info->err_dev,
-                                       pvt->bridge_ck);
+                                       pvt->dev_info->err_dev, pvt->bridge_ck);
 
        if (!pvt->bridge_ck) {
                e7xxx_printk(KERN_ERR, "error reporting device not found:"
@@ -450,6 +455,7 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
 
        debugf3("%s(): more mci init\n", __func__);
        mci->ctl_name = pvt->dev_info->ctl_name;
+       mci->dev_name = pci_name(pdev);
        mci->edac_check = e7xxx_check;
        mci->ctl_page_to_phys = ctl_page_to_phys;
        e7xxx_init_csrows(mci, pdev, dev_idx, drc);
@@ -472,11 +478,22 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
        /* Here we assume that we will never see multiple instances of this
         * type of memory controller.  The ID is therefore hardcoded to 0.
         */
-       if (edac_mc_add_mc(mci,0)) {
+       if (edac_mc_add_mc(mci)) {
                debugf3("%s(): failed edac_mc_add_mc()\n", __func__);
                goto fail1;
        }
 
+       /* allocating generic PCI control info */
+       e7xxx_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR);
+       if (!e7xxx_pci) {
+               printk(KERN_WARNING
+                       "%s(): Unable to create PCI control\n",
+                       __func__);
+               printk(KERN_WARNING
+                       "%s(): PCI error report via EDAC not setup\n",
+                       __func__);
+       }
+
        /* get this far and it's successful */
        debugf3("%s(): success\n", __func__);
        return 0;
@@ -492,7 +509,7 @@ fail0:
 
 /* returns count (>= 0), or negative on error */
 static int __devinit e7xxx_init_one(struct pci_dev *pdev,
-               const struct pci_device_id *ent)
+                               const struct pci_device_id *ent)
 {
        debugf0("%s()\n", __func__);
 
@@ -508,34 +525,33 @@ static void __devexit e7xxx_remove_one(struct pci_dev *pdev)
 
        debugf0("%s()\n", __func__);
 
+       if (e7xxx_pci)
+               edac_pci_release_generic_ctl(e7xxx_pci);
+
        if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL)
                return;
 
-       pvt = (struct e7xxx_pvt *) mci->pvt_info;
+       pvt = (struct e7xxx_pvt *)mci->pvt_info;
        pci_dev_put(pvt->bridge_ck);
        edac_mc_free(mci);
 }
 
 static const struct pci_device_id e7xxx_pci_tbl[] __devinitdata = {
        {
-               PCI_VEND_DEV(INTEL, 7205_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
-               E7205
-       },
+        PCI_VEND_DEV(INTEL, 7205_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+        E7205},
        {
-               PCI_VEND_DEV(INTEL, 7500_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
-               E7500
-       },
+        PCI_VEND_DEV(INTEL, 7500_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+        E7500},
        {
-               PCI_VEND_DEV(INTEL, 7501_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
-               E7501
-       },
+        PCI_VEND_DEV(INTEL, 7501_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+        E7501},
        {
-               PCI_VEND_DEV(INTEL, 7505_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
-               E7505
-       },
+        PCI_VEND_DEV(INTEL, 7505_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+        E7505},
        {
-               0,
-       }       /* 0 terminated list. */
+        0,
+        }                      /* 0 terminated list. */
 };
 
 MODULE_DEVICE_TABLE(pci, e7xxx_pci_tbl);
@@ -562,5 +578,7 @@ module_exit(e7xxx_exit);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Linux Networx (http://lnxi.com) Thayne Harbaugh et al\n"
-       "Based on.work by Dan Hollis et al");
+               "Based on.work by Dan Hollis et al");
 MODULE_DESCRIPTION("MC support for Intel e7xxx memory controllers");
+module_param(edac_op_state, int, 0444);
+MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI");