From 6988d81f6c24331f68a0a14fc5182f031d62628a Mon Sep 17 00:00:00 2001 From: andrew Date: Fri, 16 Sep 2016 12:18:22 +0000 Subject: MFC 303903: 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 Sponsored by: The FreeBSD Foundation --- sys/arm64/arm64/pmap.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'sys/arm64') diff --git a/sys/arm64/arm64/pmap.c b/sys/arm64/arm64/pmap.c index a451cb17..aa56e50 100644 --- a/sys/arm64/arm64/pmap.c +++ b/sys/arm64/arm64/pmap.c @@ -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; } /** -- cgit v1.1