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TDOKj/8AF8pDt19m9v8ZXvPl+Ehgbw31uu8TApceq8kM9Rbx41RwJ9rv/W6NXilXoaC4pm8UxiR w62yyHXEJEV1yy4O8ey+JpAXM3symXG7zv41k8oTUl8ycxnNU5UJBPKUgx2e2AJkoinsIrDcEjX zHpeOj8AezQXEOG/hMh5B91MGVh5f3IW8H+umsh7wIJMvauua/1gWzwacVkplRF+rsXht1mp9yO 9qXaU/Nhr8PTJ9eK1aOtaQvGnsfyC7snTuWe8WNdeo2reX4U3i9Vs6s0xsosqYKsOb40Y39rv3q mZTt8ABJ9d9pMwsdr9Q+g30enJcBC6gF+rjL43dBfVt5ZdvfoGw= X-Proofpoint-GUID: lu82oBXbfT698n8ZeRb8EIcU3kuMs9Yu X-Authority-Analysis: v=2.4 cv=Db8aa/tW c=1 sm=1 tr=0 ts=68f62714 b=1 cx=c_pps a=e1sVV491RgrpLwSTMOnk8w==:117 a=e1sVV491RgrpLwSTMOnk8w==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=xqWC_Br6kY4A:10 a=x6icFKpwvdMA:10 a=GoEa3M9JfhUA:10 a=VkNPw1HP01LnGYTKEx00:22 a=yPCof4ZbAAAA:8 a=Ikd4Dj_1AAAA:8 a=ANQtcE5oiNAsODQ0kQwA:9 cc=ntf awl=host:13624 X-Proofpoint-ORIG-GUID: lu82oBXbfT698n8ZeRb8EIcU3kuMs9Yu Content-Type: text/plain; charset="utf-8" We introduce the io_remap*() equivalents of remap_pfn_range_prepare() and remap_pfn_range_complete() to allow for I/O remapping via mmap_prepare. Make these internal to mm, as they should only be used by internal helpers. Signed-off-by: Lorenzo Stoakes Reviewed-by: Jason Gunthorpe --- mm/internal.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/mm/internal.h b/mm/internal.h index 3bd01028ade9..cbd3d897b16c 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -1666,4 +1666,22 @@ void remap_pfn_range_prepare(struct vm_area_desc *de= sc, unsigned long pfn); int remap_pfn_range_complete(struct vm_area_struct *vma, unsigned long add= r, unsigned long pfn, unsigned long size, pgprot_t pgprot); =20 +static inline void io_remap_pfn_range_prepare(struct vm_area_desc *desc, + unsigned long orig_pfn, unsigned long size) +{ + const unsigned long pfn =3D io_remap_pfn_range_pfn(orig_pfn, size); + + return remap_pfn_range_prepare(desc, pfn); +} + +static inline int io_remap_pfn_range_complete(struct vm_area_struct *vma, + unsigned long addr, unsigned long orig_pfn, unsigned long size, + pgprot_t orig_prot) +{ + const unsigned long pfn =3D io_remap_pfn_range_pfn(orig_pfn, size); + const pgprot_t prot =3D pgprot_decrypted(orig_prot); + + return remap_pfn_range_complete(vma, addr, pfn, size, prot); +} + #endif /* __MM_INTERNAL_H */ --=20 2.51.0