/*
- * $Id: proc.c,v 1.13 1998/05/12 07:36:07 mj Exp $
- *
* Procfs interface for the PCI bus.
*
* Copyright (c) 1997--1999 Martin Mares <mj@ucw.cz>
#include <linux/init.h>
#include <linux/pci.h>
+#include <linux/slab.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
-#include <linux/smp_lock.h>
-
+#include <linux/capability.h>
#include <asm/uaccess.h>
#include <asm/byteorder.h>
#include "pci.h"
proc_bus_pci_lseek(struct file *file, loff_t off, int whence)
{
loff_t new = -1;
- struct inode *inode = file->f_dentry->d_inode;
+ struct inode *inode = file->f_path.dentry->d_inode;
mutex_lock(&inode->i_mutex);
switch (whence) {
static ssize_t
proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
{
- const struct inode *ino = file->f_dentry->d_inode;
+ const struct inode *ino = file->f_path.dentry->d_inode;
const struct proc_dir_entry *dp = PDE(ino);
struct pci_dev *dev = dp->data;
unsigned int pos = *ppos;
*/
if (capable(CAP_SYS_ADMIN))
- size = dev->cfg_size;
+ size = dp->size;
else if (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)
size = 128;
else
if ((pos & 3) && cnt > 2) {
unsigned short val;
pci_user_read_config_word(dev, pos, &val);
- __put_user(cpu_to_le16(val), (unsigned short __user *) buf);
+ __put_user(cpu_to_le16(val), (__le16 __user *) buf);
buf += 2;
pos += 2;
cnt -= 2;
while (cnt >= 4) {
unsigned int val;
pci_user_read_config_dword(dev, pos, &val);
- __put_user(cpu_to_le32(val), (unsigned int __user *) buf);
+ __put_user(cpu_to_le32(val), (__le32 __user *) buf);
buf += 4;
pos += 4;
cnt -= 4;
if (cnt >= 2) {
unsigned short val;
pci_user_read_config_word(dev, pos, &val);
- __put_user(cpu_to_le16(val), (unsigned short __user *) buf);
+ __put_user(cpu_to_le16(val), (__le16 __user *) buf);
buf += 2;
pos += 2;
cnt -= 2;
static ssize_t
proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, loff_t *ppos)
{
- const struct inode *ino = file->f_dentry->d_inode;
+ struct inode *ino = file->f_path.dentry->d_inode;
const struct proc_dir_entry *dp = PDE(ino);
struct pci_dev *dev = dp->data;
int pos = *ppos;
- int size = dev->cfg_size;
+ int size = dp->size;
int cnt;
if (pos >= size)
}
if ((pos & 3) && cnt > 2) {
- unsigned short val;
- __get_user(val, (unsigned short __user *) buf);
+ __le16 val;
+ __get_user(val, (__le16 __user *) buf);
pci_user_write_config_word(dev, pos, le16_to_cpu(val));
buf += 2;
pos += 2;
}
while (cnt >= 4) {
- unsigned int val;
- __get_user(val, (unsigned int __user *) buf);
+ __le32 val;
+ __get_user(val, (__le32 __user *) buf);
pci_user_write_config_dword(dev, pos, le32_to_cpu(val));
buf += 4;
pos += 4;
}
if (cnt >= 2) {
- unsigned short val;
- __get_user(val, (unsigned short __user *) buf);
+ __le16 val;
+ __get_user(val, (__le16 __user *) buf);
pci_user_write_config_word(dev, pos, le16_to_cpu(val));
buf += 2;
pos += 2;
}
*ppos = pos;
+ i_size_write(ino, dp->size);
return nbytes;
}
int write_combine;
};
-static int proc_bus_pci_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static long proc_bus_pci_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
{
- const struct proc_dir_entry *dp = PDE(inode);
+ const struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode);
struct pci_dev *dev = dp->data;
#ifdef HAVE_PCI_MMAP
struct pci_filp_private *fpriv = file->private_data;
#ifdef HAVE_PCI_MMAP
static int proc_bus_pci_mmap(struct file *file, struct vm_area_struct *vma)
{
- struct inode *inode = file->f_dentry->d_inode;
+ struct inode *inode = file->f_path.dentry->d_inode;
const struct proc_dir_entry *dp = PDE(inode);
struct pci_dev *dev = dp->data;
struct pci_filp_private *fpriv = file->private_data;
- int ret;
+ int i, ret;
if (!capable(CAP_SYS_RAWIO))
return -EPERM;
+ /* Make sure the caller is mapping a real resource for this device */
+ for (i = 0; i < PCI_ROM_RESOURCE; i++) {
+ if (pci_mmap_fits(dev, i, vma, PCI_MMAP_PROCFS))
+ break;
+ }
+
+ if (i >= PCI_ROM_RESOURCE)
+ return -ENODEV;
+
ret = pci_mmap_page_range(dev, vma,
fpriv->mmap_state,
fpriv->write_combine);
}
#endif /* HAVE_PCI_MMAP */
-static struct file_operations proc_bus_pci_operations = {
+static const struct file_operations proc_bus_pci_operations = {
+ .owner = THIS_MODULE,
.llseek = proc_bus_pci_lseek,
.read = proc_bus_pci_read,
.write = proc_bus_pci_write,
- .ioctl = proc_bus_pci_ioctl,
+ .unlocked_ioctl = proc_bus_pci_ioctl,
+ .compat_ioctl = proc_bus_pci_ioctl,
#ifdef HAVE_PCI_MMAP
.open = proc_bus_pci_open,
.release = proc_bus_pci_release,
#endif /* HAVE_PCI_MMAP */
};
-#if BITS_PER_LONG == 32
-#define LONG_FORMAT "\t%08lx"
-#else
-#define LONG_FORMAT "\t%16lx"
-#endif
-
/* iterator */
static void *pci_seq_start(struct seq_file *m, loff_t *pos)
{
dev->vendor,
dev->device,
dev->irq);
- /* Here should be 7 and not PCI_NUM_RESOURCES as we need to preserve compatibility */
- for (i=0; i<7; i++) {
- u64 start, end;
+
+ /* only print standard and ROM resources to preserve compatibility */
+ for (i = 0; i <= PCI_ROM_RESOURCE; i++) {
+ resource_size_t start, end;
pci_resource_to_user(dev, i, &dev->resource[i], &start, &end);
- seq_printf(m, LONG_FORMAT,
- ((unsigned long)start) |
- (dev->resource[i].flags & PCI_REGION_FLAG_MASK));
+ seq_printf(m, "\t%16llx",
+ (unsigned long long)(start |
+ (dev->resource[i].flags & PCI_REGION_FLAG_MASK)));
}
- for (i=0; i<7; i++) {
- u64 start, end;
+ for (i = 0; i <= PCI_ROM_RESOURCE; i++) {
+ resource_size_t start, end;
pci_resource_to_user(dev, i, &dev->resource[i], &start, &end);
- seq_printf(m, LONG_FORMAT,
+ seq_printf(m, "\t%16llx",
dev->resource[i].start < dev->resource[i].end ?
- (unsigned long)(end - start) + 1 : 0);
+ (unsigned long long)(end - start) + 1 : 0);
}
seq_putc(m, '\t');
if (drv)
return 0;
}
-static struct seq_operations proc_bus_pci_devices_op = {
+static const struct seq_operations proc_bus_pci_devices_op = {
.start = pci_seq_start,
.next = pci_seq_next,
.stop = pci_seq_stop,
}
sprintf(name, "%02x.%x", PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
- e = create_proc_entry(name, S_IFREG | S_IRUGO | S_IWUSR, bus->procdir);
+ e = proc_create_data(name, S_IFREG | S_IRUGO | S_IWUSR, bus->procdir,
+ &proc_bus_pci_operations, dev);
if (!e)
return -ENOMEM;
- e->proc_fops = &proc_bus_pci_operations;
- e->data = dev;
e->size = dev->cfg_size;
dev->procent = e;
struct proc_dir_entry *e;
if ((e = dev->procent)) {
- if (atomic_read(&e->count))
- return -EBUSY;
remove_proc_entry(e->name, dev->bus->procdir);
dev->procent = NULL;
}
return 0;
}
+#if 0
int pci_proc_attach_bus(struct pci_bus* bus)
{
struct proc_dir_entry *de = bus->procdir;
}
return 0;
}
+#endif /* 0 */
int pci_proc_detach_bus(struct pci_bus* bus)
{
return 0;
}
-#ifdef CONFIG_PCI_LEGACY_PROC
-
-/*
- * Backward compatible /proc/pci interface.
- */
-
-/*
- * Convert some of the configuration space registers of the device at
- * address (bus,devfn) into a string (possibly several lines each).
- * The configuration string is stored starting at buf[len]. If the
- * string would exceed the size of the buffer (SIZE), 0 is returned.
- */
-static int show_dev_config(struct seq_file *m, void *v)
-{
- struct pci_dev *dev = v;
- struct pci_dev *first_dev;
- struct pci_driver *drv;
- u32 class_rev;
- unsigned char latency, min_gnt, max_lat;
- int reg;
-
- first_dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
- if (dev == first_dev)
- seq_puts(m, "PCI devices found:\n");
- pci_dev_put(first_dev);
-
- drv = pci_dev_driver(dev);
-
- pci_user_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
- pci_user_read_config_byte (dev, PCI_LATENCY_TIMER, &latency);
- pci_user_read_config_byte (dev, PCI_MIN_GNT, &min_gnt);
- pci_user_read_config_byte (dev, PCI_MAX_LAT, &max_lat);
- seq_printf(m, " Bus %2d, device %3d, function %2d:\n",
- dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
- seq_printf(m, " Class %04x", class_rev >> 16);
- seq_printf(m, ": PCI device %04x:%04x", dev->vendor, dev->device);
- seq_printf(m, " (rev %d).\n", class_rev & 0xff);
-
- if (dev->irq)
- seq_printf(m, " IRQ %d.\n", dev->irq);
-
- if (latency || min_gnt || max_lat) {
- seq_printf(m, " Master Capable. ");
- if (latency)
- seq_printf(m, "Latency=%d. ", latency);
- else
- seq_puts(m, "No bursts. ");
- if (min_gnt)
- seq_printf(m, "Min Gnt=%d.", min_gnt);
- if (max_lat)
- seq_printf(m, "Max Lat=%d.", max_lat);
- seq_putc(m, '\n');
- }
-
- for (reg = 0; reg < 6; reg++) {
- struct resource *res = dev->resource + reg;
- unsigned long base, end, flags;
-
- base = res->start;
- end = res->end;
- flags = res->flags;
- if (!end)
- continue;
-
- if (flags & PCI_BASE_ADDRESS_SPACE_IO) {
- seq_printf(m, " I/O at 0x%lx [0x%lx].\n",
- base, end);
- } else {
- const char *pref, *type = "unknown";
-
- if (flags & PCI_BASE_ADDRESS_MEM_PREFETCH)
- pref = "P";
- else
- pref = "Non-p";
- switch (flags & PCI_BASE_ADDRESS_MEM_TYPE_MASK) {
- case PCI_BASE_ADDRESS_MEM_TYPE_32:
- type = "32 bit"; break;
- case PCI_BASE_ADDRESS_MEM_TYPE_1M:
- type = "20 bit"; break;
- case PCI_BASE_ADDRESS_MEM_TYPE_64:
- type = "64 bit"; break;
- }
- seq_printf(m, " %srefetchable %s memory at "
- "0x%lx [0x%lx].\n", pref, type,
- base,
- end);
- }
- }
- return 0;
-}
-
-static struct seq_operations proc_pci_op = {
- .start = pci_seq_start,
- .next = pci_seq_next,
- .stop = pci_seq_stop,
- .show = show_dev_config
-};
-
-static int proc_pci_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &proc_pci_op);
-}
-static struct file_operations proc_pci_operations = {
- .open = proc_pci_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static void legacy_proc_init(void)
-{
- struct proc_dir_entry * entry = create_proc_entry("pci", 0, NULL);
- if (entry)
- entry->proc_fops = &proc_pci_operations;
-}
-
-#else
-
-static void legacy_proc_init(void)
-{
-
-}
-
-#endif /* CONFIG_PCI_LEGACY_PROC */
-
static int proc_bus_pci_dev_open(struct inode *inode, struct file *file)
{
return seq_open(file, &proc_bus_pci_devices_op);
}
-static struct file_operations proc_bus_pci_dev_operations = {
+static const struct file_operations proc_bus_pci_dev_operations = {
+ .owner = THIS_MODULE,
.open = proc_bus_pci_dev_open,
.read = seq_read,
.llseek = seq_lseek,
static int __init pci_proc_init(void)
{
- struct proc_dir_entry *entry;
struct pci_dev *dev = NULL;
- proc_bus_pci_dir = proc_mkdir("pci", proc_bus);
- entry = create_proc_entry("devices", 0, proc_bus_pci_dir);
- if (entry)
- entry->proc_fops = &proc_bus_pci_dev_operations;
+ proc_bus_pci_dir = proc_mkdir("bus/pci", NULL);
+ proc_create("devices", 0, proc_bus_pci_dir,
+ &proc_bus_pci_dev_operations);
proc_initialized = 1;
- while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
+ for_each_pci_dev(dev)
pci_proc_attach_device(dev);
- }
- legacy_proc_init();
+
return 0;
}
-__initcall(pci_proc_init);
-
-#ifdef CONFIG_HOTPLUG
-EXPORT_SYMBOL(pci_proc_attach_device);
-EXPORT_SYMBOL(pci_proc_attach_bus);
-EXPORT_SYMBOL(pci_proc_detach_bus);
-#endif
+device_initcall(pci_proc_init);
Code Review / linux-2.6.git / blobdiff