1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2 #ifndef _ASM_ARM_SWIOTLB_XEN_H
3 #define _ASM_ARM_SWIOTLB_XEN_H
4
5 #include <xen/features.h>
6 #include <xen/xen.h>
7
8 static inline int xen_swiotlb_detect(void)
9 {
10 if (!xen_domain())
11 return 0;
12 if (xen_feature(XENFEAT_direct_mapped)
13 return 1;
14 /* legacy case */
15 if (!xen_feature(XENFEAT_not_direct_ma
16 return 1;
17 return 0;
18 }
19
20 #endif /* _ASM_ARM_SWIOTLB_XEN_H */
21
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