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