linux-imx

// SPDX-License-Identifier: GPL-2.0

#include "amd64_edac.h"

​

static ssize_t amd64_inject_section_show(struct device *dev,

                     struct device_attribute *mattr,

                     char *buf)

{

    struct mem_ctl_info *mci = to_mci(dev);

    struct amd64_pvt *pvt = mci->pvt_info;

    return sprintf(buf, "0x%x\n", pvt->injection.section);

}

​

/*

 * store error injection section value which refers to one of 4 16-byte sections

 * within a 64-byte cacheline

 *

 * range: 0..3

 */

static ssize_t amd64_inject_section_store(struct device *dev,

                      struct device_attribute *mattr,

                      const char *data, size_t count)

{

    struct mem_ctl_info *mci = to_mci(dev);

    struct amd64_pvt *pvt = mci->pvt_info;

    unsigned long value;

    int ret;

​

    ret = kstrtoul(data, 10, &value);

    if (ret < 0)

        return ret;

​

    if (value > 3) {

        amd64_warn("%s: invalid section 0x%lx\n", __func__, value);

        return -EINVAL;

    }

​

    pvt->injection.section = (u32) value;

    return count;

}

​

static ssize_t amd64_inject_word_show(struct device *dev,

                    struct device_attribute *mattr,

                    char *buf)

{

    struct mem_ctl_info *mci = to_mci(dev);

    struct amd64_pvt *pvt = mci->pvt_info;

    return sprintf(buf, "0x%x\n", pvt->injection.word);

}

​

/*

 * store error injection word value which refers to one of 9 16-bit word of the

 * 16-byte (128-bit + ECC bits) section

 *

 * range: 0..8

 */

static ssize_t amd64_inject_word_store(struct device *dev,

                       struct device_attribute *mattr,

                       const char *data, size_t count)

{

    struct mem_ctl_info *mci = to_mci(dev);

    struct amd64_pvt *pvt = mci->pvt_info;

    unsigned long value;

    int ret;