Date: Sun, 25 Jul 2010 11:48:07 +0530 From: "Jayachandran C." <c.jayachandran@gmail.com> To: Warner Losh <imp@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Alan Cox <alc@cs.rice.edu> Subject: Re: svn commit: r210460 - head/sys/mips/include Message-ID: <AANLkTik%2BBV6u6fNVX8Ntb-G1yF=vEDh6VqB7Xcb5VtD-@mail.gmail.com> In-Reply-To: <4C4BC213.5060001@cs.rice.edu> References: <201007250419.o6P4J50q033283@svn.freebsd.org> <4C4BC213.5060001@cs.rice.edu>
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On Sun, Jul 25, 2010 at 10:18 AM, Alan Cox <alc@cs.rice.edu> wrote: > Warner Losh wrote: >> >> Author: imp >> Date: Sun Jul 25 04:19:05 2010 >> New Revision: 210460 >> URL: http://svn.freebsd.org/changeset/base/210460 >> >> Log: >> =A0Get N64 building by defining VM_FREELIST_DIRECT to be >> =A0VM_FREELIST_DEFAULT. =A0I believe this is correct, since KX is set in >> =A0n64, and thus all RAM can be direct mapped. Thanks, this is something I missed in my MIPS page table changes. > > Yes, it is. In MIPS 64bit, whole physical memory is direct mapped thru a XKPHYS region. We can use vm_page_alloc() for pmap_alloc_pte_page() and VM_WAIT for pmap_grow_pte_page_cache(), is this something we should consider? Thanks JC.
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