/*
* drivers/pci/pci-sysfs.c
*
* (C) Copyright 2002-2004 Greg Kroah-Hartman <greg@kroah.com>
* (C) Copyright 2002-2004 IBM Corp.
* (C) Copyright 2003 Matthew Wilcox
* (C) Copyright 2003 Hewlett-Packard
* (C) Copyright 2004 Jon Smirl <jonsmirl@yahoo.com>
* (C) Copyright 2004 Silicon Graphics, Inc. Jesse Barnes <jbarnes@sgi.com>
*
* File attributes for PCI devices
*
* Modeled after usb's driverfs.c
*
*/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/pci.h>
#include <linux/stat.h>
#include <linux/topology.h>
#include <linux/mm.h>
#include <linux/capability.h>
#include <linux/pci-aspm.h>
#include "pci.h"
static int sysfs_initialized; /* = 0 */
/* show configuration fields */
#define pci_config_attr(field, format_string) \
static ssize_t \
field##_show(struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct pci_dev *pdev; \
\
pdev = to_pci_dev (dev); \
return sprintf (buf, format_string, pdev->field); \
}
pci_config_attr(vendor, "0x%04x\n");
pci_config_attr(device, "0x%04x\n");
pci_config_attr(subsystem_vendor, "0x%04x\n");
pci_config_attr(subsystem_device, "0x%04x\n");
pci_config_attr(class, "0x%06x\n");
pci_config_attr(irq, "%u\n");
static ssize_t broken_parity_status_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct pci_dev *pdev = to_pci_dev(dev);
return sprintf (buf, "%u\n", pdev->broken_parity_status);
}
static ssize_t broken_parity_status_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct pci_dev *pdev = to_pci_dev(dev);
ssize_t consumed = -EINVAL;
if ((count > 0) && (*buf == '0' || *buf == '1')) {
pdev->broken_parity_status = *buf == '1' ? 1 : 0;
consumed = count;
}
return consumed;
}
static ssize_t local_cpus_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
cpumask_t mask;
int len;
mask = pcibus_to_cpumask(to_pci_dev(dev)->bus);
len = cpumask_scnprintf(buf, PAGE_SIZE-2, &mask);
buf[len++] = '\n';
buf[len] = '\0';
return len;
}
static ssize_t local_cpulist_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
cpumask_t mask;
int len;
mask = pcibus_to_cpumask(to_pci_dev(dev)->bus);
len = cpulist_scnprintf(buf, PAGE_SIZE-2, &mask);
buf[len++] = '\n';
buf[len] = '\0';
return len;
}
/* show resources */
static ssize_t
resource_show(struct device * dev, struct device_attribute *attr, char * buf)
{
struct pci_dev * pci_dev = to_pci_dev(dev);
char * str = buf;
int i;
int max = 7;
resource_size_t start, end;
if (pci_dev->subordinate)
max = DEVICE_COUNT_RESOURCE;
for (i = 0; i < max; i++) {
struct resource *res = &pci_dev->resource[i];
pci_resource_to_user(pci_dev, i, res, &start, &end);
str += sprintf(str,"0x%016llx 0x%016llx 0x%016llx\n",
(unsigned long long)start,
(unsigned long long)end,
(unsigned long long)res->flags);
}
return (str - buf);
}
static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
return sprintf(buf, "pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x\n",
pci_dev->vendor, pci_dev->device,
pci_dev->subsystem_vendor, pci_dev->subsystem_device,
(u8)(pci_dev->class >> 16), (u8)(pci_dev->class >> 8),
(u8)(pci_dev->class));
}
static ssize_t is_enabled_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
ssize_t