| /* SPDX-License-Identifier: GPL-2.0 */ | |
| #ifndef _ASM_ARM_SWIOTLB_XEN_H | |
| #define _ASM_ARM_SWIOTLB_XEN_H | |
| #include <xen/features.h> | |
| #include <xen/xen.h> | |
| static inline int xen_swiotlb_detect(void) | |
| { | |
| if (!xen_domain()) | |
| return 0; | |
| if (xen_feature(XENFEAT_direct_mapped)) | |
| return 1; | |
| /* legacy case */ | |
| if (!xen_feature(XENFEAT_not_direct_mapped) && xen_initial_domain()) | |
| return 1; | |
| return 0; | |
| } | |
| #endif /* _ASM_ARM_SWIOTLB_XEN_H */ |