2005-04-16 15:20:36 -07:00
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#ifndef _X86_64_PAGE_H
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#define _X86_64_PAGE_H
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#ifdef __KERNEL__
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#ifndef __ASSEMBLY__
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2007-05-02 10:27:06 -07:00
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#endif /* !__ASSEMBLY__ */
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2005-04-16 15:20:36 -07:00
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#ifndef __ASSEMBLY__
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Revert "[PATCH] x86: __pa and __pa_symbol address space separation"
This was broken. It adds complexity, for no good reason. Rather than
separate __pa() and __pa_symbol(), we should deprecate __pa_symbol(),
and preferably __pa() too - and just use "virt_to_phys()" instead, which
is more readable and has nicer semantics.
However, right now, just undo the separation, and make __pa_symbol() be
the exact same as __pa(). That fixes the bugs this patch introduced,
and we can do the fairly obvious cleanups later.
Do the new __phys_addr() function (which is now the actual workhorse for
the unified __pa()/__pa_symbol()) as a real external function, that way
all the potential issues with compile/link-time optimizations of
constant symbol addresses go away, and we can also, if we choose to, add
more sanity-checking of the argument.
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 08:44:24 -07:00
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#endif /* __ASSEMBLY__ */
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2005-04-16 15:20:36 -07:00
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2006-04-27 07:48:08 -07:00
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#endif /* __KERNEL__ */
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2008-01-30 05:32:41 -07:00
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#ifdef CONFIG_FLATMEM
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#define pfn_valid(pfn) ((pfn) < end_pfn)
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#endif
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2005-04-16 15:20:36 -07:00
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#endif /* _X86_64_PAGE_H */
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