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4.4.0-1128-aws
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include
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linux
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Filename :
i7300_idle.h
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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