Date: Mon, 25 May 2015 19:16:22 +0530 From: Pratik Singhal <ps06756@gmail.com> To: freebsd-hackers <freebsd-hackers@freebsd.org> Subject: Convert virtual address to physical address Message-ID: <CAGf2gkNuO6b71pDhenZdyyRQPUtGCDn8UTyVrAwu0_TimKcMFg@mail.gmail.com>
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I need to convert a kernel virtual address to physical address. To do that,
as far as I know, we have 2 macros :-
vtophys :- In sys/arm/include/pmap.h
VTOP :- In sys/boot/i386/libi386/amd64_tramp.S
Since, I am working on arm kernel with ARM_NEW_PMAP option, I am using
vtophys macro by including the pmap.h file.
Now, if I compile the kernel after including the pmap.h file, I am getting
the error :-
error: field has incomplete type 'struct pmap_statistics'
struct pmap_statistics pm_stats; /* pmap statictics */
^
./machine/pmap-v6.h:127:9: note: forward declaration of 'struct
pmap_statistics'
struct pmap_statistics pm_stats; /* pmap statictics */
How, should I resolve this error ? Or is there some other way to convert
virtual address to physical address for arm kernel ?
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