Date: Wed, 10 Aug 2016 10:13:34 +0000 (UTC) From: Andrew Turner <andrew@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r303903 - head/sys/arm64/arm64 Message-ID: <201608101013.u7AADYit097853@repo.freebsd.org>
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Author: andrew Date: Wed Aug 10 10:13:34 2016 New Revision: 303903 URL: https://svnweb.freebsd.org/changeset/base/303903 Log: Implement pmap_align_superpage on arm64 based on the amd64 implementation. This will be needed when superpage support is added. Obtained from: ABT Systems Ltd MFC after: 1 month Sponsored by: The FreeBSD Foundation Modified: head/sys/arm64/arm64/pmap.c Modified: head/sys/arm64/arm64/pmap.c ============================================================================== --- head/sys/arm64/arm64/pmap.c Wed Aug 10 08:05:48 2016 (r303902) +++ head/sys/arm64/arm64/pmap.c Wed Aug 10 10:13:34 2016 (r303903) @@ -3490,6 +3490,20 @@ void pmap_align_superpage(vm_object_t object, vm_ooffset_t offset, vm_offset_t *addr, vm_size_t size) { + vm_offset_t superpage_offset; + + if (size < L2_SIZE) + return; + if (object != NULL && (object->flags & OBJ_COLORED) != 0) + offset += ptoa(object->pg_color); + superpage_offset = offset & L2_OFFSET; + if (size - ((L2_SIZE - superpage_offset) & L2_OFFSET) < L2_SIZE || + (*addr & L2_OFFSET) == superpage_offset) + return; + if ((*addr & L2_OFFSET) < superpage_offset) + *addr = (*addr & ~L2_OFFSET) + superpage_offset; + else + *addr = ((*addr + L2_OFFSET) & ~L2_OFFSET) + superpage_offset; } /**
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