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#ifndef I7300_IDLE_H
#define I7300_IDLE_H
#include <linux/pci.h>
/*
* I/O AT controls (PCI bus 0 device 8 function 0)
* DIMM controls (PCI bus 0 device 16 function 1)
*/
#define IOAT_BUS 0
#define IOAT_DEVFN PCI_DEVFN(8, 0)
#define MEMCTL_BUS 0
#define MEMCTL_DEVFN PCI_DEVFN(16, 1)
struct fbd_ioat {
unsigned int vendor;
unsigned int ioat_dev;
unsigned int enabled;
};
/*
* The i5000 chip-set has the same hooks as the i7300
* but it is not enabled by default and must be manually
* manually enabled with "forceload=1" because it is
* only lightly validated.
*/
static const struct fbd_ioat fbd_ioat_list[] = {
{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_CNB, 1},
{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT, 0},
{0, 0}
};
/* table of devices that work with this driver */
static const struct pci_device_id pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_FBD_CNB) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5000_ERR) },
{ } /* Terminating entry */
};
/* Check for known platforms with I/O-AT */
static inline int i7300_idle_platform_probe(struct pci_dev **fbd_dev,
struct pci_dev **ioat_dev,
int enable_all)
{
int i;
struct pci_dev *memdev, *dmadev;
memdev = pci_get_bus_and_slot(MEMCTL_BUS, MEMCTL_DEVFN);
if (!memdev)
return -ENODEV;
for (i = 0; pci_tbl[i].vendor != 0; i++) {
if (memdev->vendor == pci_tbl[i].vendor &&
memdev->device == pci_tbl[i].device) {
break;
}
}
if (pci_tbl[i].vendor == 0)
return -ENODEV;
dmadev = pci_get_bus_and_slot(IOAT_BUS, IOAT_DEVFN);
if (!dmadev)
return -ENODEV;
for (i = 0; fbd_ioat_list[i].vendor != 0; i++) {
if (dmadev->vendor == fbd_ioat_list[i].vendor &&
dmadev->device == fbd_ioat_list[i].ioat_dev) {
if (!(fbd_ioat_list[i].enabled || enable_all))
continue;
if (fbd_dev)
*fbd_dev = memdev;
if (ioat_dev)
*ioat_dev = dmadev;
return 0;
}
}
return -ENODEV;
}
#endif