diff options
Diffstat (limited to 'arch/x86/include/asm/xen/swiotlb-xen.h')
| -rw-r--r-- | arch/x86/include/asm/xen/swiotlb-xen.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/x86/include/asm/xen/swiotlb-xen.h b/arch/x86/include/asm/xen/swiotlb-xen.h new file mode 100644 index 000000000..6b56d0d45 --- /dev/null +++ b/arch/x86/include/asm/xen/swiotlb-xen.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_SWIOTLB_XEN_H +#define _ASM_X86_SWIOTLB_XEN_H + +#ifdef CONFIG_SWIOTLB_XEN +extern int xen_swiotlb; +extern int __init pci_xen_swiotlb_detect(void); +extern void __init pci_xen_swiotlb_init(void); +extern int pci_xen_swiotlb_init_late(void); +#else +#define xen_swiotlb (0) +static inline int __init pci_xen_swiotlb_detect(void) { return 0; } +static inline void __init pci_xen_swiotlb_init(void) { } +static inline int pci_xen_swiotlb_init_late(void) { return -ENXIO; } +#endif + +#endif /* _ASM_X86_SWIOTLB_XEN_H */ |