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- /* 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 */
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