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i5100_edac: probe for device 19 function 0 

Probe and store the device handle for the device 19 function 0 during
driver initialization. The device is used during fault injection.

Signed-off-by: Niklas Söderlund <niklas.soderlund@ericsson.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
hifive-unleashed-5.1
Niklas Söderlund 2012-08-08 12:30:56 -03:00 committed by Mauro Carvalho Chehab
parent e7100478fa
commit 52608ba205
2 changed files with 28 additions and 1 deletions
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28
drivers/edac/i5100_edac.c
View File

@ -338,6 +338,7 @@ struct i5100_priv {
unsigned ranksperchan; /* number of ranks per channel */
struct pci_dev *mc; /* device 16 func 1 */
struct pci_dev *einj; /* device 19 func 0 */
struct pci_dev *ch0mm; /* device 21 func 0 */
struct pci_dev *ch1mm; /* device 22 func 0 */
@ -869,7 +870,7 @@ static int i5100_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
struct mem_ctl_info *mci;
struct edac_mc_layer layers[2];
struct i5100_priv *priv;
struct pci_dev *ch0mm, *ch1mm;
struct pci_dev *ch0mm, *ch1mm, *einj;
int ret = 0;
u32 dw;
int ranksperch;
@ -941,6 +942,22 @@ static int i5100_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
goto bail_disable_ch1;
}
/* device 19, func 0, Error injection */
einj = pci_get_device_func(PCI_VENDOR_ID_INTEL,
PCI_DEVICE_ID_INTEL_5100_19, 0);
if (!einj) {
ret = -ENODEV;
goto bail_einj;
}
rc = pci_enable_device(einj);
if (rc < 0) {
ret = rc;
goto bail_disable_einj;
}
mci->pdev = &pdev->dev;
priv = mci->pvt_info;
@ -948,6 +965,7 @@ static int i5100_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
priv->mc = pdev;
priv->ch0mm = ch0mm;
priv->ch1mm = ch1mm;
priv->einj = einj;
INIT_DELAYED_WORK(&(priv->i5100_scrubbing), i5100_refresh_scrubbing);
@ -999,6 +1017,12 @@ bail_scrub:
cancel_delayed_work_sync(&(priv->i5100_scrubbing));
edac_mc_free(mci);
bail_disable_einj:
pci_disable_device(einj);
bail_einj:
pci_dev_put(einj);
bail_disable_ch1:
pci_disable_device(ch1mm);
@ -1036,8 +1060,10 @@ static void i5100_remove_one(struct pci_dev *pdev)
pci_disable_device(pdev);
pci_disable_device(priv->ch0mm);
pci_disable_device(priv->ch1mm);
pci_disable_device(priv->einj);
pci_dev_put(priv->ch0mm);
pci_dev_put(priv->ch1mm);
pci_dev_put(priv->einj);
edac_mc_free(mci);
}

1
include/linux/pci_ids.h
View File

@ -2776,6 +2776,7 @@
#define PCI_DEVICE_ID_INTEL_JAKETOWN_UBOX 0x3ce0
#define PCI_DEVICE_ID_INTEL_IOAT_SNB 0x402f
#define PCI_DEVICE_ID_INTEL_5100_16 0x65f0
#define PCI_DEVICE_ID_INTEL_5100_19 0x65f3
#define PCI_DEVICE_ID_INTEL_5100_21 0x65f5
#define PCI_DEVICE_ID_INTEL_5100_22 0x65f6
#define PCI_DEVICE_ID_INTEL_5400_ERR 0x4030