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authorRalf Baechle <ralf@linux-mips.org>2006-06-12 09:13:56 +0100
committerRalf Baechle <ralf@linux-mips.org>2006-06-19 17:39:22 +0100
commite53639d8f313974a87540015cbb0832905be6056 (patch)
treeb6a442bd408c9c4f2d3de284097d06c69cae273f /include/asm-mips
parent952fa954a61cee43de5afba91ae605e30ed2586c (diff)
[MIPS] Consolidate definitions of pfn_valid in one file.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'include/asm-mips')
-rw-r--r--include/asm-mips/mmzone.h8
-rw-r--r--include/asm-mips/page.h19
2 files changed, 19 insertions, 8 deletions
diff --git a/include/asm-mips/mmzone.h b/include/asm-mips/mmzone.h
index 7bde4432092..79f4491403b 100644
--- a/include/asm-mips/mmzone.h
+++ b/include/asm-mips/mmzone.h
@@ -14,14 +14,6 @@
#define kvaddr_to_nid(kvaddr) pa_to_nid(__pa(kvaddr))
#define pfn_to_nid(pfn) pa_to_nid((pfn) << PAGE_SHIFT)
-#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);\
-})
-
/* XXX: FIXME -- wli */
#define kern_addr_valid(addr) (0)
diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h
index 4035ec79ecd..3d262c01521 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)