diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/x86/include/asm/xen/pci.h | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
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 <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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 <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/x86/include/asm/xen/pci.h')
| -rw-r--r-- | kernel/arch/x86/include/asm/xen/pci.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/kernel/arch/x86/include/asm/xen/pci.h b/kernel/arch/x86/include/asm/xen/pci.h new file mode 100644 index 000000000..968d57dd5 --- /dev/null +++ b/kernel/arch/x86/include/asm/xen/pci.h @@ -0,0 +1,82 @@ +#ifndef _ASM_X86_XEN_PCI_H +#define _ASM_X86_XEN_PCI_H + +#if defined(CONFIG_PCI_XEN) +extern int __init pci_xen_init(void); +extern int __init pci_xen_hvm_init(void); +#define pci_xen 1 +#else +#define pci_xen 0 +#define pci_xen_init (0) +static inline int pci_xen_hvm_init(void) +{ + return -1; +} +#endif +#if defined(CONFIG_XEN_DOM0) +int __init pci_xen_initial_domain(void); +int xen_find_device_domain_owner(struct pci_dev *dev); +int xen_register_device_domain_owner(struct pci_dev *dev, uint16_t domain); +int xen_unregister_device_domain_owner(struct pci_dev *dev); +#else +static inline int __init pci_xen_initial_domain(void) +{ + return -1; +} +static inline int xen_find_device_domain_owner(struct pci_dev *dev) +{ + return -1; +} +static inline int xen_register_device_domain_owner(struct pci_dev *dev, + uint16_t domain) +{ + return -1; +} +static inline int xen_unregister_device_domain_owner(struct pci_dev *dev) +{ + return -1; +} +#endif + +#if defined(CONFIG_PCI_MSI) +#if defined(CONFIG_PCI_XEN) +/* The drivers/pci/xen-pcifront.c sets this structure to + * its own functions. + */ +struct xen_pci_frontend_ops { + int (*enable_msi)(struct pci_dev *dev, int vectors[]); + void (*disable_msi)(struct pci_dev *dev); + int (*enable_msix)(struct pci_dev *dev, int vectors[], int nvec); + void (*disable_msix)(struct pci_dev *dev); +}; + +extern struct xen_pci_frontend_ops *xen_pci_frontend; + +static inline int xen_pci_frontend_enable_msi(struct pci_dev *dev, + int vectors[]) +{ + if (xen_pci_frontend && xen_pci_frontend->enable_msi) + return xen_pci_frontend->enable_msi(dev, vectors); + return -ENODEV; +} +static inline void xen_pci_frontend_disable_msi(struct pci_dev *dev) +{ + if (xen_pci_frontend && xen_pci_frontend->disable_msi) + xen_pci_frontend->disable_msi(dev); +} +static inline int xen_pci_frontend_enable_msix(struct pci_dev *dev, + int vectors[], int nvec) +{ + if (xen_pci_frontend && xen_pci_frontend->enable_msix) + return xen_pci_frontend->enable_msix(dev, vectors, nvec); + return -ENODEV; +} +static inline void xen_pci_frontend_disable_msix(struct pci_dev *dev) +{ + if (xen_pci_frontend && xen_pci_frontend->disable_msix) + xen_pci_frontend->disable_msix(dev); +} +#endif /* CONFIG_PCI_XEN */ +#endif /* CONFIG_PCI_MSI */ + +#endif /* _ASM_X86_XEN_PCI_H */ |