cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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superhyway-sysfs.c (1590B)

      1/*
      2 * drivers/sh/superhyway/superhyway-sysfs.c
      3 *
      4 * SuperHyway Bus sysfs interface
      5 *
      6 * Copyright (C) 2004, 2005  Paul Mundt <lethal@linux-sh.org>
      7 *
      8 * This file is subject to the terms and conditions of the GNU General Public
      9 * License.  See the file "COPYING" in the main directory of this archive
     10 * for more details.
     11 */
     12#include <linux/kernel.h>
     13#include <linux/device.h>
     14#include <linux/types.h>
     15#include <linux/superhyway.h>
     16
     17#define superhyway_ro_attr(name, fmt, field)				\
     18static ssize_t name##_show(struct device *dev, struct device_attribute *attr, char *buf)		\
     19{									\
     20	struct superhyway_device *s = to_superhyway_device(dev);	\
     21	return sprintf(buf, fmt, s->field);				\
     22}									\
     23static DEVICE_ATTR_RO(name);
     24
     25/* VCR flags */
     26superhyway_ro_attr(perr_flags, "0x%02x\n", vcr.perr_flags);
     27superhyway_ro_attr(merr_flags, "0x%02x\n", vcr.merr_flags);
     28superhyway_ro_attr(mod_vers, "0x%04x\n", vcr.mod_vers);
     29superhyway_ro_attr(mod_id, "0x%04x\n", vcr.mod_id);
     30superhyway_ro_attr(bot_mb, "0x%02x\n", vcr.bot_mb);
     31superhyway_ro_attr(top_mb, "0x%02x\n", vcr.top_mb);
     32
     33/* Misc */
     34superhyway_ro_attr(resource, "0x%08lx\n", resource[0].start);
     35
     36static struct attribute *superhyway_dev_attrs[] = {
     37	&dev_attr_perr_flags.attr,
     38	&dev_attr_merr_flags.attr,
     39	&dev_attr_mod_vers.attr,
     40	&dev_attr_mod_id.attr,
     41	&dev_attr_bot_mb.attr,
     42	&dev_attr_top_mb.attr,
     43	&dev_attr_resource.attr,
     44	NULL,
     45};
     46
     47static const struct attribute_group superhyway_dev_group = {
     48	.attrs = superhyway_dev_attrs,
     49};
     50
     51const struct attribute_group *superhyway_dev_groups[] = {
     52	&superhyway_dev_group,
     53	NULL,
     54};