linux-imx

/*

 * EDAC PCI component

 *

 * Author: Dave Jiang <djiang@mvista.com>

 *

 * 2007 (c) MontaVista Software, Inc. This file is licensed under

 * the terms of the GNU General Public License version 2. This program

 * is licensed "as is" without any warranty of any kind, whether express

 * or implied.

 *

 */

#include <asm/page.h>

#include <linux/uaccess.h>

#include <linux/ctype.h>

#include <linux/highmem.h>

#include <linux/init.h>

#include <linux/module.h>

#include <linux/slab.h>

#include <linux/smp.h>

#include <linux/spinlock.h>

#include <linux/sysctl.h>

#include <linux/timer.h>

​

#include "edac_pci.h"

#include "edac_module.h"

​

static DEFINE_MUTEX(edac_pci_ctls_mutex);

static LIST_HEAD(edac_pci_list);

static atomic_t pci_indexes = ATOMIC_INIT(0);

​

struct edac_pci_ctl_info *edac_pci_alloc_ctl_info(unsigned int sz_pvt,

                        const char *edac_pci_name)

{

    struct edac_pci_ctl_info *pci;

    void *p = NULL, *pvt;

    unsigned int size;

​

    edac_dbg(1, "\n");

​

    pci = edac_align_ptr(&p, sizeof(*pci), 1);

    pvt = edac_align_ptr(&p, 1, sz_pvt);

    size = ((unsigned long)pvt) + sz_pvt;

​

    /* Alloc the needed control struct memory */

    pci = kzalloc(size, GFP_KERNEL);

    if (pci  == NULL)

        return NULL;

​

    /* Now much private space */

    pvt = sz_pvt ? ((char *)pci) + ((unsigned long)pvt) : NULL;

​

    pci->pvt_info = pvt;

    pci->op_state = OP_ALLOC;

​

    snprintf(pci->name, strlen(edac_pci_name) + 1, "%s", edac_pci_name);

​

    return pci;

}

EXPORT_SYMBOL_GPL(edac_pci_alloc_ctl_info);

​

void edac_pci_free_ctl_info(struct edac_pci_ctl_info *pci)

{

    edac_dbg(1, "\n");

​

    edac_pci_remove_sysfs(pci);

}

EXPORT_SYMBOL_GPL(edac_pci_free_ctl_info);

​

/*

 * find_edac_pci_by_dev()

 *  scans the edac_pci list for a specific 'struct device *'

 *

 *  return NULL if not found, or return control struct pointer

 */

static struct edac_pci_ctl_info *find_edac_pci_by_dev(struct device *dev)

{

    struct edac_pci_ctl_info *pci;

    struct list_head *item;

​

    edac_dbg(1, "\n");

​

    list_for_each(item, &edac_pci_list) {

        pci = list_entry(item, struct edac_pci_ctl_info, link);

​

        if (pci->dev == dev)

            return pci;

    }

​

    return NULL;

}

​

/*