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i7core_edac: Probe on Xeons eariler

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On the Xeon 55XX series cpus the pci deives are not exposed via acpi so
we much explicitly probe them to make the usable as a Linux PCI device.

This moves the detection of this state to before pci_register_driver is
called.  Its present position was not working on my systems, the driver
would complain about not finding a specific device.

This patch allows the driver to load on my systems.

Signed-off-by: Keith Mannthey <kmannth@us.ibm.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Keith Mannthey 2009-09-03 00:05:05 -03:00 committed by Mauro Carvalho Chehab
parent 14d2c08343
commit bc2d7245ff
1 changed files with 19 additions and 13 deletions
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32
drivers/edac/i7core_edac.c
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@ -1158,6 +1158,23 @@ static void i7core_put_devices(void)
pci_dev_put(pci_devs[j].pdev[i]);
}
static void i7core_xeon_pci_fixup(void)
{
struct pci_dev *pdev = NULL;
int i;
/*
* On Xeon 55xx, the Intel Quckpath Arch Generic Non-core pci buses
* aren't announced by acpi. So, we need to use a legacy scan probing
* to detect them
*/
pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
pci_devs[0].dev_id, NULL);
if (unlikely(!pdev)) {
for (i = 0; i < NUM_SOCKETS; i ++)
pcibios_scan_specific_bus(255-i);
}
}
/*
* i7core_get_devices Find and perform 'get' operation on the MCH's
* device/functions we want to reference for this driver
@ -1173,19 +1190,6 @@ int i7core_get_onedevice(struct pci_dev **prev, int devno)
pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
pci_devs[devno].dev_id, *prev);
/*
* On Xeon 55xx, the Intel Quckpath Arch Generic Non-core pci buses
* aren't announced by acpi. So, we need to use a legacy scan probing
* to detect them
*/
if (unlikely(!pdev && !devno && !prev)) {
pcibios_scan_specific_bus(254);
pcibios_scan_specific_bus(255);
pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
pci_devs[devno].dev_id, *prev);
}
/*
* On Xeon 55xx, the Intel Quckpath Arch Generic Non-core regs
* is at addr 8086:2c40, instead of 8086:2c41. So, we need
@ -1896,6 +1900,8 @@ static int __init i7core_init(void)
/* Ensure that the OPSTATE is set correctly for POLL or NMI */
opstate_init();
i7core_xeon_pci_fixup();
pci_rc = pci_register_driver(&i7core_driver);
if (pci_rc >= 0)