[SPARC64]: Move over to sparsemem.

This has been pending for a long time, and the fact
that we waste a ton of ram on some configurations
kind of pushed things over the edge.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 8 deletions

diff --git a/include/asm-sparc64/page.h b/include/asm-sparc64/page.h
index c277ac56b9d7..f6b49256fe2b 100644
--- a/include/asm-sparc64/page.h
+++ b/include/asm-sparc64/page.h
@@ -125,17 +125,10 @@ typedef unsigned long pgprot_t;
 #define __pa(x)                 ((unsigned long)(x) - PAGE_OFFSET)
 #define __va(x)                 ((void *)((unsigned long) (x) + PAGE_OFFSET))
 
-/* PFNs are real physical page numbers.  However, mem_map only begins to record
- * per-page information starting at pfn_base.  This is to handle systems where
- * the first physical page in the machine is at some huge physical address,
- * such as 4GB.   This is common on a partitioned E10000, for example.
- */
-extern struct page *pfn_to_page(unsigned long pfn);
-extern unsigned long page_to_pfn(struct page *);
+#define pfn_to_kaddr(pfn)       __va((pfn) << PAGE_SHIFT)
 
 #define virt_to_page(kaddr)     pfn_to_page(__pa(kaddr)>>PAGE_SHIFT)
 
-#define pfn_valid(pfn)          (((pfn)-(pfn_base)) < max_mapnr)
 #define virt_addr_valid(kaddr)  pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 
 #define virt_to_phys __pa