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yaml
---
r: 343405
b: refs/heads/master
c: 1e8da95
h: refs/heads/master
i:
  343403: 34a279c
v: v3
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Jan Glauber authored and Martin Schwidefsky committed Nov 30, 2012
1 parent 5a3be38 commit 343991e
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Showing 5 changed files with 98 additions and 2 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 7441b0627e2251370902305a204e1330a696ca04
refs/heads/master: 1e8da9566b56e371902381f42e209df79090486e
4 changes: 4 additions & 0 deletions trunk/arch/s390/include/asm/pci.h
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Expand Up @@ -141,6 +141,10 @@ struct zpci_dev *get_zdev(struct pci_dev *);
struct zpci_dev *get_zdev_by_fid(u32);
bool zpci_fid_present(u32);

/* sysfs */
int zpci_sysfs_add_device(struct device *);
void zpci_sysfs_remove_device(struct device *);

/* DMA */
int zpci_dma_init(void);
void zpci_dma_exit(void);
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2 changes: 1 addition & 1 deletion trunk/arch/s390/pci/Makefile
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Expand Up @@ -3,4 +3,4 @@
#

obj-$(CONFIG_PCI) += pci.o pci_dma.o pci_clp.o pci_msi.o \
pci_event.o
pci_sysfs.o pci_event.o
6 changes: 6 additions & 0 deletions trunk/arch/s390/pci/pci.c
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Expand Up @@ -628,6 +628,7 @@ static void zpci_remove_device(struct pci_dev *pdev)
dev_info(&pdev->dev, "Removing device %u\n", zdev->domain);
zdev->state = ZPCI_FN_STATE_CONFIGURED;
zpci_dma_exit_device(zdev);
zpci_sysfs_remove_device(&pdev->dev);
zpci_unmap_resources(pdev);
list_del(&zdev->entry); /* can be called from init */
zdev->pdev = NULL;
Expand Down Expand Up @@ -676,6 +677,11 @@ void pcibios_disable_device(struct pci_dev *pdev)
pdev->sysdata = NULL;
}

int pcibios_add_platform_entries(struct pci_dev *pdev)
{
return zpci_sysfs_add_device(&pdev->dev);
}

int zpci_request_irq(unsigned int irq, irq_handler_t handler, void *data)
{
int msi_nr = irq_to_msi_nr(irq);
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86 changes: 86 additions & 0 deletions trunk/arch/s390/pci/pci_sysfs.c
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@@ -0,0 +1,86 @@
/*
* Copyright IBM Corp. 2012
*
* Author(s):
* Jan Glauber <jang@linux.vnet.ibm.com>
*/

#define COMPONENT "zPCI"
#define pr_fmt(fmt) COMPONENT ": " fmt

#include <linux/kernel.h>
#include <linux/stat.h>
#include <linux/pci.h>

static ssize_t show_fid(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev));

sprintf(buf, "0x%08x\n", zdev->fid);
return strlen(buf);
}
static DEVICE_ATTR(function_id, S_IRUGO, show_fid, NULL);

static ssize_t show_fh(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev));

sprintf(buf, "0x%08x\n", zdev->fh);
return strlen(buf);
}
static DEVICE_ATTR(function_handle, S_IRUGO, show_fh, NULL);

static ssize_t show_pchid(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev));

sprintf(buf, "0x%04x\n", zdev->pchid);
return strlen(buf);
}
static DEVICE_ATTR(pchid, S_IRUGO, show_pchid, NULL);

static ssize_t show_pfgid(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev));

sprintf(buf, "0x%02x\n", zdev->pfgid);
return strlen(buf);
}
static DEVICE_ATTR(pfgid, S_IRUGO, show_pfgid, NULL);

static struct device_attribute *zpci_dev_attrs[] = {
&dev_attr_function_id,
&dev_attr_function_handle,
&dev_attr_pchid,
&dev_attr_pfgid,
NULL,
};

int zpci_sysfs_add_device(struct device *dev)
{
int i, rc = 0;

for (i = 0; zpci_dev_attrs[i]; i++) {
rc = device_create_file(dev, zpci_dev_attrs[i]);
if (rc)
goto error;
}
return 0;

error:
while (--i >= 0)
device_remove_file(dev, zpci_dev_attrs[i]);
return rc;
}

void zpci_sysfs_remove_device(struct device *dev)
{
int i;

for (i = 0; zpci_dev_attrs[i]; i++)
device_remove_file(dev, zpci_dev_attrs[i]);
}

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