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| author | Ralf Baechle <ralf@linux-mips.org> | 2006-06-12 09:13:56 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2006-06-19 17:39:22 +0100 |
| commit | e53639d8f313974a87540015cbb0832905be6056 (patch) | |
| tree | b6a442bd408c9c4f2d3de284097d06c69cae273f /include/asm-mips/page.h | |
| parent | 952fa954a61cee43de5afba91ae605e30ed2586c (diff) | |
| download | op-kernel-dev-e53639d8f313974a87540015cbb0832905be6056.zip op-kernel-dev-e53639d8f313974a87540015cbb0832905be6056.tar.gz | |
[MIPS] Consolidate definitions of pfn_valid in one file.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'include/asm-mips/page.h')
| -rw-r--r-- | include/asm-mips/page.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h index 4035ec7..3d262c0 100644 --- a/include/asm-mips/page.h +++ b/include/asm-mips/page.h @@ -145,6 +145,25 @@ typedef struct { unsigned long pgprot; } pgprot_t; #endif #endif +#ifdef CONFIG_FLATMEM + +#define pfn_valid(pfn) ((pfn) < max_mapnr) + +#elif defined(CONFIG_NEED_MULTIPLE_NODES) + +#define pfn_valid(pfn) \ +({ \ + unsigned long __pfn = (pfn); \ + int __n = pfn_to_nid(__pfn); \ + ((__n >= 0) ? (__pfn < NODE_DATA(__n)->node_start_pfn + \ + NODE_DATA(__n)->node_spanned_pages) \ + : 0); \ +}) + +#else +#error Provide a definition of pfn_valid +#endif + #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) |
