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hexagon: use generic fixmap.h
Signed-off-by: Mark Salter <msalter@redhat.com> Acked-by: Richard Kuo <rkuo@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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1 changed files with 1 additions and 39 deletions
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@ -26,45 +26,7 @@
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*/
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*/
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#include <asm/mem-layout.h>
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#include <asm/mem-layout.h>
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/*
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#include <asm-generic/fixmap.h>
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* Full fixmap support involves set_fixmap() functions, but
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* these may not be needed if all we're after is an area for
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* highmem kernel mappings.
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*/
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#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
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#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
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extern void __this_fixmap_does_not_exist(void);
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/**
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* fix_to_virt -- "index to address" translation.
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*
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* If anyone tries to use the idx directly without translation,
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* we catch the bug with a NULL-deference kernel oops. Illegal
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* ranges of incoming indices are caught too.
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*/
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static inline unsigned long fix_to_virt(const unsigned int idx)
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{
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/*
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* This branch gets completely eliminated after inlining,
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* except when someone tries to use fixaddr indices in an
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* illegal way. (such as mixing up address types or using
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* out-of-range indices).
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*
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* If it doesn't get removed, the linker will complain
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* loudly with a reasonably clear error message..
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*/
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if (idx >= __end_of_fixed_addresses)
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__this_fixmap_does_not_exist();
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return __fix_to_virt(idx);
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}
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static inline unsigned long virt_to_fix(const unsigned long vaddr)
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{
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BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
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return __virt_to_fix(vaddr);
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}
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#define kmap_get_fixmap_pte(vaddr) \
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#define kmap_get_fixmap_pte(vaddr) \
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pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), \
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pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), \
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