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cb6f6b3384
Move xen_swiotlb_detect to a static inline function to make it available to !CONFIG_XEN builds. CC: boris.ostrovsky@oracle.com CC: jgross@suse.com Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Juergen Gross <jgross@suse.com> Link: https://lore.kernel.org/r/20210512201823.1963-1-sstabellini@kernel.org Signed-off-by: Juergen Gross <jgross@suse.com>
20 lines
431 B
C
20 lines
431 B
C
/* 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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