From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/include/linux/i7300_idle.h | 83 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 kernel/include/linux/i7300_idle.h (limited to 'kernel/include/linux/i7300_idle.h') diff --git a/kernel/include/linux/i7300_idle.h b/kernel/include/linux/i7300_idle.h new file mode 100644 index 000000000..1587b7dec --- /dev/null +++ b/kernel/include/linux/i7300_idle.h @@ -0,0 +1,83 @@ + +#ifndef I7300_IDLE_H +#define I7300_IDLE_H + +#include + +/* + * 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 -- cgit 1.2.3-korg