From d8c64784cbb20a5faa9f3c39d17975c09234e5db Mon Sep 17 00:00:00 2001 From: ian Date: Sun, 18 May 2014 17:46:48 +0000 Subject: [PATCH] MFC 258287: Implement pmap_align_superpage(). git-svn-id: svn://svn.freebsd.org/base/stable/10@266412 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f --- sys/arm/arm/pmap-v6.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/sys/arm/arm/pmap-v6.c b/sys/arm/arm/pmap-v6.c index 1d9ad141d..139f6c425 100644 --- a/sys/arm/arm/pmap-v6.c +++ b/sys/arm/arm/pmap-v6.c @@ -5089,6 +5089,20 @@ 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 < NBPDR) + return; + if (object != NULL && (object->flags & OBJ_COLORED) != 0) + offset += ptoa(object->pg_color); + superpage_offset = offset & PDRMASK; + if (size - ((NBPDR - superpage_offset) & PDRMASK) < NBPDR || + (*addr & PDRMASK) == superpage_offset) + return; + if ((*addr & PDRMASK) < superpage_offset) + *addr = (*addr & ~PDRMASK) + superpage_offset; + else + *addr = ((*addr + PDRMASK) & ~PDRMASK) + superpage_offset; } /* -- 2.45.0